Abstract: A cross fire retention system for a gas turbine engine includes a retention system housing operably coupled to a radially outer surface of a flow sleeve surrounding a combustion chamber, wherein the retention system housing includes a central aperture relatively aligned with a flow sleeve channel and is configured to receive a cross fire tube. Also included is a locking element extending through a side aperture of the retention system housing and having a first end configured to fittingly engage a first portion of an outer surface of the cross fire tube. Further included is a resilient member disposed within the retention system housing and configured to engage a second portion of the outer surface of the cross fire tube.

Abstract: A cooling air inlet which is particularly suitable for use in an engine bleed air system of an aircraft air conditioning system. The cooling air inlet comprises a cooling air inlet opening which opens into an inlet portion of a cooling air line. A cooling air inlet valve which is positionable in a first open position or a second open position is arranged in the inlet portion of the cooling air line. The cooling air inlet valve is adapted to effect the build-up of a first cooling air admission pressure in the inlet portion of the cooling air line in its first open position and the build-up of a second cooling air admission pressure in the inlet portion of the cooling air line in its second open position. The second cooling air admission pressure is greater than the first cooling air inlet pressure.

Abstract: Systems and methods are provided for combined cycle power generation while reducing or mitigating emissions during power generation. Recycled exhaust gas from a power generation combustion reaction can be separated using a swing adsorption process so as to generate a high purity CO2 stream while reducing/minimizing the energy required for the separation and without having to reduce the temperature of the exhaust gas. This can allow for improved energy recovery while also generating high purity streams of carbon dioxide and nitrogen.

Abstract: A gas turbine engine having an engine casing extending circumferentially about an engine centerline axis; and a compressor section, a combustor section, and a turbine section within said engine casing. At least one of said compressor section and said turbine section includes at least one airfoil and at least one seal member adjacent to the at least one airfoil, wherein a tip of the at least one airfoil is metal having a thin film ceramic coating and the at least one seal member is coated with an abrasive.

Abstract: Methods and systems for controlling a gas turbine system are provided herein. In one embodiment, a method includes the steps of receiving at least one parameter of turbine inlet air and determining, based on the at least one parameter, an expected condensation level at an intercooler disposed downstream of an inlet air chilling system and in-line between a low pressure compressor and a high pressure compressor. The method further includes determining a desired temperature of the turbine inlet air corresponding to substantially no expected condensation at the intercooler and controlling the inlet air chilling system to chill the turbine inlet air to the desired temperature.

Abstract: Heat accumulated inside the human body can affect performance and may also lead to heat stroke, hyperthermia and even death. A method and system for performance enhancing body cooling with the use of thermoelectric cooling plate for performance enhancement and prevention of heat stress/heat stroke/hyperthermia is described. The system targets the glabrous skins in the palm for optimal heat extraction and the portable device allows continuous cooling for longer duration. A heavy-duty version of the device using multiple thermoelectric cooling plates for cooling of body under extreme heat conditions such as inside a tank or armored personnel vehicle (APV) for military applications is also described.

Abstract: An air conditioning apparatus cools air sent to a passenger compartment by using a cooling machine which is a vapor compression heat pump. Heating of the air may be implemented by utilizing the heat of an internal combustion engine or via a Peltier element. As the cooling machine, a cooling machine provided in a conventional air conditioning apparatus may be utilized, thus eliminating the need for significant modification of the structure of the air conditioning apparatus. The air sent to the passenger compartment can be heated with the Peltier element so that the passenger compartment can be air-conditioned (heated), even when it is difficult to utilize the internal combustion engine as a heat source for air-conditioning the passenger compartment, such as when the vehicle is travelling solely on the motor generator.

Abstract: A portable cryogenic cooling apparatus includes a platform; a tank for storing a cryogen and mounted to the platform; a heat exchanger operatively associated with the platform and in fluid communication with the cryogen; at least one air circulation device operatively associated with the heat exchanger for moving atmosphere therethrough; a first exhaust pipe in communication with the heat exchanger for removing gaseous cryogen from the heat exchanger to a location external to the atmosphere; a power source mounted to the platform and connected to the at least one air circulation device for powering said device; a control valve operatively associated with the tank and the heat exchanger to adjust an amount of the cryogen provided to the heat exchanger; and a controller in communication with the heat exchanger and the control valve for generating a signal to the control valve for operation thereof.

Abstract: Facilities for offshore liquefied natural gas (LNG) floating storage with jack-up platform regasification unit, the facilities including: a jack-up unit comprising legs which have bottom part to be fixable to a sea bed and top part to be exposed to a surface of water, and a hull to be movable up and down with respect to the legs; a storage unit moored at the jack-up unit providing a space for storing LNG; a regasification unit as a module which regasifies the LNG supplied from the storage unit, installed on a top portion of the jack-up unit, separable from the jack-up unit; a utility unit comprising a power source and a sea water pump to supply power and sea water to the regasification unit; and a piping unit comprising unloading pipe for connecting the regasification unit and the storage unit and supplying pipe for carrying natural gas gasified by the regasification unit.

Abstract: A cooling device and to a method for controlling a cooling device for vehicles is provided, the cooling device including a refrigerant compressor, a condenser downstream of the refrigerant compressor in the flow direction of the refrigerant, a first evaporator downstream of the condenser for cooling air to be supplied to the passenger compartment, a second evaporator arranged parallel to the first evaporator for cooling an electric accumulator, and a control unit which is configured to control the refrigerant compressor as a function of the cooling demands for the passenger compartment and/or the electric accumulator on the basis of the higher cooling demand requirement. The cooling device may further include electric valves between the condenser and the first and second evaporators to control a cooling capacity of the first and/or second evaporator to meet the cooling demands of the passenger compartment and/or the electric accumulator.

Abstract: A drilling system including a motor that produces a sonic, linear oscillatory motion is provided for removing a frozen biological sample from a stored frozen specimen and methods of use thereof without thawing the remainder of the specimen. The stator and slider assembly is operated by a servo controller which can communicate and be programmed through a port of a PC equipped with software.

Abstract: A passively cooled instrument protective housing has an internal heat exchanger, an external heat exchanger, and a storage tank for a cooling medium and disposed in a housing interior. A cooling unit having a cooling unit evaporator is disposed in the storage tank and in which a cooling unit coolant is evaporated with the use of heat from the storage tank cooling medium. A condenser or a liquefier is disposed outside the housing and in which the vaporous or gaseous cooling unit coolant emanating from the cooling unit evaporator is liquefied. A switching and/or shut-off device is provided, by which the cooling unit can be switched off and/or can be uncoupled from the passive cooling system formed by the internal and external heat exchangers and by the storage tank. In addition, a control and/or regulating device is provided, which same is operatively connected to the cooling unit.

Abstract: A cooling unit (10) includes a housing (12) having a front (14) and a back (16), one or more fans (28) provided at either the front (14) or the back (16) of the housing (12), and a V-shaped evaporator (30) positioned within the housing (12) and coupled to a source of liquid refrigerant. The V-shaped evaporator (30) has two panels extending from adjacent to the bottom (22) of the housing to adjacent to the top (24) of the housing (12) when positioning the evaporator (30) in the housing (12). The arrangement is such that an inside of the panels of the evaporator (30) faces air being drawn through the housing (12) of the cooling unit (10) by the fan (28).

Abstract: Climate control systems and methods of operating climate control systems for motor vehicles are provided herein. In one example, the method comprises the steps of expanding a condensed refrigerant stream with an expansion valve to form a partially expanded refrigerant stream. The partially expanded refrigerant stream comprises a refrigerant liquid phase and a refrigerant vapor phase. The partially expanded refrigerant stream is separated with a liquid-vapor separator into a refrigerant liquid stream and a refrigerant vapor stream. Heat is exchanged between air passing across or through an evaporator and the refrigerant liquid stream passing internally through and expanding in the evaporator to form a superheated refrigerant gas stream.

Abstract: A system and method of cooling a compressed working fluid is disclosed. The method includes compressing the working fluid above its critical pressure point in a compression stage to generate a compressed working fluid at or about local ambient temperature. The compressed working fluid can be cooled to below ambient by throttling a portion of the compressed working fluid to its saturated liquid-vapor state to generate a recycle working fluid. The recycle working fluid may then be atomized using an atomizing nozzle whereby the recycle working fluid evaporates and cools working fluid entering a target compression stage.

Abstract: The present invention safely freezes a confection very quickly, preferably in less than two minutes. The device includes an insulated refrigerant tank; one or more elevators; a mold; a mold holder mounted on the elevator; a refrigerant level monitoring subsystem capable of refilling the refrigerant tank; and, a user interface subsystem. The mold is preferably tapered with interior freezing surfaces such as tubes of refrigerant, which decrease the confection's freezing time.

Abstract: Water condensate is captured from the exhaust of a generator utilized to provide power to a data center, and the captured water is then utilized for data center purposes such as adiabatic cooling. The exhaust of electrical power generators is passed through a condenser to obtain water condensate from such exhaust. The water condensate is stored in water storage units and is utilized to provide supplemental cooling to the data center. Sporadic usage of water can enable the water storage to be refilled between uses, since water condensate can be obtained from exhaust almost continuously. The level of water is monitored and the level of processing performed by the data center is adjusted to avoid emptying such water storage units. Historical climatological data is utilized to estimate the water required. Additionally, short and long-range weather forecasts can be optionally taken into account.

Abstract: A vehicle air conditioner (1A) includes: an external air introduction port (33) for introducing external air into a vehicle interior; and a duct (3) having an inlet port (31) for drawing internal air into the duct and an outlet port (32) for blowing air into the vehicle interior. In the duct (3), a first indoor heat exchanger (12A) and a second indoor heat exchanger (12B) of a heat pump circuit (2A) are disposed. The first indoor heat exchanger (12A) contributes mainly to heating, and the second indoor heat exchanger (12B) contributes mainly to cooling. The duct (3) is provided with at least one of a heating exhaust port (34) for discharging air cooled in the second indoor heat exchanger (12B) to the outside of the vehicle interior in heating operation and a cooling exhaust port (35) for discharging air heated in the first indoor heat exchanger (12A) to the outside of the vehicle interior in cooling operation.

Abstract: A cooling system integrating a plurality of evaporative chillers, which each cool water to below ambient wet bulb temperature. In an air-to-air heat exchanger of each chiller, the incoming airstream used to evaporate water from the water stream is first cooled indirectly using the cooled air that is exhausted from a saturator of an adjacent chiller or subunit. By pre-chilling the air without adding moisture, each of the chillers of the cooling system is able to achieve water temperatures below the ambient wet bulb temperature. The system integrates or “daisy chains” multiple sub-wet bulb evaporative chillers or subunits such that the cool air output from one subunit is used to pre-cool the incoming air of another neighboring unit. To this end, adjacent units have their heat exchangers fluidically connected together (e.g., air flow output from each saturator is passed as cool return air through channels of an adjacent heat exchanger).

Abstract: The invention relates to a system for drying and/or cooling an airflow, comprising: at least one cooling device for cooling an airflow, comprising:—at least one cooling channel with an inflow opening for the airflow for cooling and an outflow opening for the cooled airflow,—at least one evaporating channel separated from the cooling channel by a transfer wall and having an inflow opening which is connected for medium throughflow to the outflow opening of the cooling channel, and an outflow opening, and—means for wetting the side of the transfer wall directed toward the evaporating channel, and a drying device for drying the airflow, comprising:—a drying channel with an inflow opening for the airflow for drying and an outflow opening for the dried air-flow, wherein the outflow opening of the cooling channel of the or a cooling device and/or the outflow opening of the evaporating channel of the or a cooling device is connected for medium throughflow to the inflow opening of the drying device.

Abstract: According to one embodiment, a heat source unit apparatus includes air heat exchangers, each includes a plurality of fins arranged at prescribed intervals, heat exchanging pipes penetrating the fins, and bent strips extending at sides and bent in the same direction, and a heat exchange module includes two air heat exchangers, each having the bent strips opposed to those of the other air heat exchanger, the air heat exchangers being inclined such that lower edges are close to each other and upper edges are spaced apart, whereby the heat exchange module is shaped like a letter V as seen from side.

Abstract: Provided is an air conditioner. The air conditioner includes a mechanical chamber receiving a compressor for compressing a refrigerant and a water-cooled heat exchanger for heat-exchanging water introduced from the outside and flowing along a water pipe with the refrigerant, an air-cooled heat exchanger disposed on a top surface of the mechanical chamber, the air-cooled heat exchanger being fluidly connected to the compressor, and a fan disposed above the air-cooled heat exchanger. A refrigerant pipe constituting the air-cooled heat exchanger is bent several times along an outer edge of the fan and has a polygonal pillar shape extending in a vertical direction.

Abstract: A permanent magnet air heater has a housing with an internal chamber accommodating an electric motor rotating a fan to move air through the housing. A non-ferrous member having bores for cylindrical magnets and a steel member with a copper plate secured to the steel member are rotated relative to each other by the motor whereby the magnetic field between the magnets and copper plate generates heat which is transferred to air in the housing moving through the housing by the fan.

Abstract: An oil-free central compressor variable refrigerant flow air conditioning system structure and method is set out. The system may be a new installation, or retrofit. Refrigerant piping spans are not limited by considerations of entrained oil flow.

Abstract: A rooftop air conditioning unit, including an air conditioner to produce conditioned air for a conditioned space within a building, the air conditioner having an evaporator, a compressor operably disposed downstream from the evaporator and a condenser operably interposed between the compressor and the evaporator, the rooftop air conditioning unit including a housing, disposed on a roof of the building to house the evaporator, the compressor and the condenser, the housing being formed to define a pathway from an inlet that is fed by exterior and/or interior air to an outlet leading to the conditioned space and a heat reclaim module disposed within the housing and operably coupled to the air conditioner to be receptive of heat produced in the air conditioner for heat exchange operations.

Abstract: A system for cooling an electronic device of the present invention cools air warmed by exhaust heat of an electronic device, and includes an evaporator, a condenser, a gas flow channel, and a liquid flow channel. The evaporator is provided in a direction in which air is blown out by the electronic device, and causes a liquid coolant to undergo a phase transition to a gaseous coolant by absorbing heat of the air blown out from the electronic device. The condenser causes the gaseous coolant to undergo a phase transition to a liquid coolant by releasing heat of the gaseous coolant. The gas flow channel flows the gaseous coolant undergone the phase transition by the evaporator, into the condenser. The liquid flow channel flows the liquid coolant undergone the phase transition by the condenser, into the evaporator. The condenser is arranged above the evaporator.

Abstract: A variable speed liquid LNG expander (X1) and a variable speed two-phase LNG expander (X2) in line, downstream from X1. The rotational speed of both expanders can be controlled and changed independent from each other. The speed of expander X1 and expander X2 is determined in such way that the amount of liquid LNG downstream from the PHS compared to the feed gas supply is maximized and the amount of vapor and boil-off downstream of X2 is minimized.

Abstract: A method to recover natural gas liquids from natural gas streams at NGL recovery plants. The present invention relates to methods using liquid natural gas (LNG) as an external source of stored cold energy to reduce the energy and improve the operation of NGL distillation columns. More particularly, the present invention provides methods to efficiently and economically achieve higher recoveries of natural gas liquids at NGL recovery plants.

Abstract: A method for recovering natural gas liquids without using cryogenic conditions, membranes, and carbon dioxide recovery solvents is provided. In one embodiment, a carbon dioxide recycle stream that comprises carbon dioxide and natural gas liquids is received. The carbon dioxide recycle stream is separated into a purified carbon dioxide recycle stream and a natural gas liquids stream. The purified carbon dioxide recycle stream comprises the carbon dioxide, and the natural gas liquids stream comprises the natural gas liquids. The carbon dioxide recycle stream, the purified carbon dioxide recycle stream, and the natural gas liquids are not subjected to cryogenic conditions, membranes, and carbon dioxide recovery solvents between being received and being separated into the purified carbon dioxide recycle stream and the natural gas liquids stream.

Abstract: Systems and methods include a first interchangeable segment having first and second ends separated by a first length. The first interchangeable segment may include a first connector at the first end and a second connector at the second end. A second interchangeable segment may have third and fourth ends separated by a second length. The second interchangeable segment may include a third connector at the third end and a fourth connector at the fourth end. The first and second interchangeable segments may connect to at least partially encircle a user.

Abstract: A method for manufacturing a porous glass includes: forming a phase-separated glass by heating at a temperature in a range of 300 to 500 degrees Celsius for 3 to 50 hours for phase separation of a glass body in which the concentration of SiO2 is 50 to 70 percent by weight, the concentration of B2O3 is 15 to 40 percent by weight, the concentration of Li2O is 1.0 to 8.0 percent by weight, the concentration of Na2O is 2.0 to 8.0 percent by weight, the concentration of K2O is 0.3 to 5.0 percent by weight, the total concentration of Li2O, Na2O, and K2O is 3.5 to 15 percent by weight, and the ratio of the concentration of K2O to the total concentration of Li2O, Na2O, and K2O is 0.10 to 0.30; and forming a porous glass by etching the phase-separated glass.

Abstract: A precious metal structure which has an internal gas permeable membrane is described herein for a glass manufacturing vessel configured to have molten glass flow therein. The internal gas permeable membrane can be supplied with an atmosphere of gas (or gases) to control the flux of hydrogen into our out of the molten glass or otherwise improve the production of the molten glass. In this manner, the undesirable detrimental reactions that can occur at the interface of the molten glass and precious metal interface which can cause defects in the molten glass such as bubbles or solid inclusions can be stopped or at least substantially reduced.

Abstract: Provided is a process for producing an optical fiber including a processing process where an optical fiber work made of a glass is held by a processing apparatus for an optical fiber work to be heated and processed, wherein in the processing process, vibration caused by an abnormality of the optical fiber work in the heated state or vibration caused by an abnormality of a glass body which is a portion of the processing apparatus for an optical fiber work and is in the state where the glass body portion is heated due to the heating of the optical fiber work is detected by using an acoustic emission sensor.

Abstract: A method of forming high strength glass fibers in a continuous system is provided. The method includes supplying a glass batch to a glass melting furnace lined with a material substantially free of noble metals. The glass batch comprises about 50-about 75 weight percent SiO2, about 15-about 30 weight percent Al2O3, about 5-about 20 weight percent MgO, about 0-about 10 weight percent CaO, about 0.25-about 5 weigh percent R2O. The method further includes melting the glass batch in the furnace and forming a pool of molten glass in contact with the furnace glass contact surface, transporting the molten glass from the furnace to the bushing using a forehearth that is at least partially lined with a material substantially free of noble metal materials, discharging the molten glass from the forehearth into the bushing; and forming the molten glass into continuous fibers.

Abstract: A circular hosiery knitting machine of the seamless type, comprising a supporting structure and a needle cylinder provided with a plurality of axial slots, each of which accommodates a needle which can be actuated with a reciprocating motion along the corresponding axial slot; a sinker ring being arranged around the upper end of the needle cylinder being provided with a plurality of radial slots, each of which accommodates a sinker, which can move with a reciprocating motion along the corresponding radial slot, each sinker being provided with a heel which protrudes upward from the corresponding radial slot and can engage at least one path defined in a sinker cover which faces in an upper region the sinker ring, the needle cylinder being actuatable with a rotary motion about its own axis with respect to the supporting structure and to the sinker cover.

Abstract: A small size pulsator-type automatic washing machine comprises a housing, a control panel seat mounted on the top of the housing, a pedestal mounted at the bottom of the housing, an outer tub and an inner tub mounted inside the housing. A direct driving motor and a bearing block are mounted at the bottom of the outer tub. The motor is mounted on the outer tub by fixing elements, and a motor shaft is coupled with a pulsator shaft inside the bearing block. A fastener strap fixes the motor and the bearing block together onto the outer tub of the washing machine, thus reducing occupied space of the washing machine while improving a variety of installation mechanism of conventional washing machine. An insulation unit is disposed in the joint between the motor shaft and the tub shaft, such that the two parts cannot be in direct contact.

Abstract: A set of double locking handcuffs wherein a single cuff has a frame that is a solid member, having an ergonomic base and a single arcuate arm, to which an opposite-facing arcuate swing arm is pivotally affixed at the top of the arm that rotates parallel to the frame in a bypass manner without a mechanical union with the base of the frame. At the top of the swing arm at the pivot point is the housing, having the gear, pawl, and lock assembly disposed in its cavity. The gear's circumference has both ratcheting and smooth surfaces that cooperate with the pawl. The lock assembly comprises a keyway that is configured to cooperate with protrusions within the cavity to prevent defeat of the cuff. The housing of one cuff is at the opposite axial end of the housing of the adjoining cuff when the set is extended outward.

Abstract: A rebound locking mechanism (10) is taught that consists of a spring loaded shaft (28) having an activating flat (34) thereon, a spring loaded latch (78) interfacing with the shaft activating flat and a rebound plate (40) attached to the shaft. An inertia flywheel (56) having an offset protruding striker (58) is in alignment beneath said rebound plate, with an electric motor (60) rotating the flywheel. In operation when the motor rotates the flywheel in a counter clockwise direction, the striker hits a top surface of the rebound plate and bounces the flywheel clockwise until the striker hits beneath the rebound plate causing the shaft to rotate realigning the flat permitting the latch to rotate under spring urging and thereby repositioning the catch from a locked position into an unlocked position.

Abstract: A key ring is capable of removing a crown cap from a bottle. The crown cap has a rim and a top. The key ring can adroit and retain keys and comprises a closed loop including a first portion having a pair of elongated arms that extend in the same general direction (Y) and are spaced apart in an orthogonal direction (X) by a distance of 10 to 40 mm. The bottle can be opened by locating one of the arms under the rim of a crown cap while the other of the arms is located on the top of the crown cap and the key ring is twisted in the direction of arrow A, The length of the loop in the direction (Y) is at least 20 mm so that the loop includes a second portion that extends laterally beyond the crown cap by a distance that allows the key ring to be engaged by the user to twist the key ring and lever the cap off the bottle. A key on the key ring and/or an extension of the key ring loop in the X direction can assist in levering the cap off the bottle.

Abstract: The present disclosure describes an agricultural blend and a process of forming an agricultural blend. The agricultural blend includes a slag by-product from a process having a slag other than stainless steel slag or includes 11 atomic % silicon from a soluble compound and total silicon of less than about 30 atomic % silicon or greater than about 39 atomic % silicon. The process includes producing a slag by-product and blending the slag by-product with a liquid binder system to form the agricultural blend, the slag not being stainless steel slag.

Abstract: The pipe end correction method for correcting an inner diameter of pipe end of a seamless pipe made of a high Cr stainless steel containing 8 to 35 mass % Cr, and 0.1 to 10 mass % Ni includes a pipe end correction step following hot tube-making and heat treatment, that forces a plug into the inside of pipe end portion for inner diameter correction so as to expand the pipe end portion while oxide scale, which is generated during tube-making or heat treatment, remains accumulated on an inner surface of the pipe end portion. A lubricant film forming step, prior to the pipe end correction step, applies lubricant at least either on the inner surface of the pipe end portion of the seamless pipe or on a surface of the plug. Seizure flaws can be prevented on the inner surface of the pipe end portion of the high Cr stainless steel.

Abstract: A guide wire for use in a medical procedure having a shapeable tip integral with and made from the distal end of a superelastic nitinol distal section of the guide wire, wherein the shapeable tip can be finger kinked. Such a guide wire includes an elongated core made from a superelastic nitinol alloy at the distal end, the distal end of the elongated core having a tapered section leading to a shapeable distal tip. The shapeable tip is an extension of the distal end of the nitinol distal section, and includes permanent strain hardening from at least two different radial directions imparting crystallographic texture in the radial directions that eliminate superelasticity so that permanent deformation can be achieved with finger pressure.

Abstract: “STRIP GUIDANCE SYSTEM FOR MACHINES THAT FROM PIPES FROM CONTINUOUS PROFILED AND SPIRALLED STRIPS” for machines that produce spiraled tubes (1) or pipes from continuous strips (2) that are wound on a roll (3), forming first a profile of at least one continuous flat strip (2) of metal or any other type of smooth material, which after the profiling process are spiraled and interlocked to itself to form a continuous segment of spiraled pipe (1) or hose and that the strips (2) raw materials are usually provided and stored in the form of pancakes, rolls (3) or coils.

Abstract: A winding device includes a bending mechanism for bending a rectangular wire, a feed mechanism for feeding the rectangular wire, a coil guide for supporting an edgewise coil formed by alternately repeating the feeding of the rectangular wire by the feed mechanism and the bending of the rectangular wire by the bending mechanism, and a coil-guide moving mechanism for moving the coil guide while rotating the coil guide. The coil guide includes a guide column to be brought into engagement with an inner circumference of a first coil portion having a cylindrical shape, and a guide base on which a second coil portion is to be placed, the second coil portion having a cylindrical shape connected to the first coil portion through a connecting wire and having a center axis that is shifted in position from a center axis of the first coil portion to form a stepwise shape.

Abstract: In a method for producing seamless pipes, a hot hollow block created previously in a piercing mill is stretched by means of a continuous rolling mill on a mandrel bar to form a parent pipe and the parent pipe is fed directly to a stretch reducing mill or sizing mill as a finishing mill, while forgoing an extracting mill and a reheating furnace, and is rolled there to the required final pipe diameter. The hollow block is pre-dimensioned in its length in such a manner that only a single length is produced as the required parent pipe length during the stretching in the continuous rolling mill and the parent pipe is pulled off of the mandrel rod by the finishing rolling during the subsequent finishing rolling, wherein the rolling is performed using rolling mill components that are designed in the dimensions thereof for handling single lengths.

Abstract: A pipe bending machine has a stiff-back which is driven by a pivoting wedge. A linkage applies force from the actuator to the wedge in a direction parallel to a longitudinal axis of the stiff-back. The stiff-back pivots on a first fulcrum and the wedge slides on a bed which pivots on a second fulcrum. The actuator drives the wedge between the stiff-back and the bed to rotate the stiff-back at the first fulcrum and bend the pipe seated in the stiff-back against the pipe bending face of a die. The conversion of the longitudinal force applied to the wedge into a transverse force applied to the stiff-back provides a significant mechanical advantage which varies directionally as the stiff-back rotates about its fulcrum to maintain a constant force on the stiff-back.

Abstract: A draw die set defines a die cavity. A die entry area is provided at the location where a blank is drawn into the die cavity. A plurality of rolling elements such as cylindrical rollers or spherical balls are retained in pockets formed at the die entry area. A punch may be provided with rolling elements that engage a blank on the opposite side from the rollers in the die entry area. The rollers in the die entry area and on the punch may be arranged in rows that form a tangent surface that engages the sheet metal blank as it is drawn into the die cavity.

Abstract: The invention provides methods for manufacturing warm press-formed members which can ensure post-coating corrosion resistance. A method for manufacturing warm press-formed members includes heating a steel sheet to a temperature in the range from 200 to 800° C. and warm press-forming the steel sheet at a temperature in the above range of temperatures, the steel sheet having a Zn—Ni alloy coating layer on its surface, the coating layer including 10 to 25 mass % Ni and the balance being Zn and inevitable impurities and having a coating weight of 10 to 90 g/m2.

Abstract: The drawing press (10) according to the invention has for driving its ram (15) a directionally reversing gear mechanism (22, 54), for example a coupling gear mechanism, and at least one servomotor (23). The servomotor (23) passes through the reversal point (Ut) of the ram movement, which is predetermined by the kinematics of the coupling gear mechanism, for example the extended position of an eccentric drive. During the closing of the die (18), that is to say during a press stroke, the servomotor (23) is activated in such a way that it first passes through this reversal point (Ut), then stops, reverses and then passes through it once again, in order to open the die (18) again. Consequently, the braking to a standstill and re-acceleration of the servomotor for the upper ram (15) takes place while the actual drawing operation is still or already being performed, i.e. during the forming of the metal blank, which significantly reduces the cycle time.

Abstract: A pipe bending machine has a stiff-back which is driven by a pivoting wedge. A linkage applies force from the actuator to the wedge in a direction parallel to a longitudinal axis of the stiff-back. The stiff-back pivots on a first fulcrum and the wedge slides on a bed which pivots on a second fulcrum. The actuator drives the wedge between the stiff-back and the bed to rotate the stiff-back at the first fulcrum and bend the pipe seated in the stiff-back against the pipe bending face of a die. The conversion of the longitudinal force applied to the wedge into a transverse force applied to the stiff-back provides a significant mechanical advantage which varies directionally as the stiff-back rotates about its fulcrum to maintain a constant force on the stiff-back.