Abstract: A metal catalyst carrier has a core comprising a corrugated sheet and a flat sheet with a plurality of slots in a shape elongated in a direction perpendicular to a cell passage direction. The slots are formed before a sheet metal is corrugated and have a predetermined interval apart from one another. The plural slots disposed along the direction perpendicular to the cell passage direction are arranged to form a plurality of slot arrays arranged in the cell passage direction, and an interval Y in the cell passage direction and an interval X in the direction perpendicular to the cell passage direction, between the opening peripheral edge portions of the slots adjacent to each other in the slot arrays adjacent to each other, are set under the conditions satisfying X?0 mm and X??(5/2)Y+10 mm, thereby preventing the occurrence of distortions and cracks in the process of corrugating the sheet metal.

Abstract: A process for producing a metallic layer includes forming structures at least in subregions of the metallic layer. The structures have corrugation troughs and corrugation peaks, an upper bearing surface formed at least in part from the peaks, and a lower bearing surface formed at least in part from the troughs. The metallic layer is formed with at least a first region having a first thickness and a second region having a second thickness, different than the first thickness. The structures are formed, in longitudinal direction, independently of the thickness, with at least one of the upper and lower bearing surfaces in the regions being substantially aligned in longitudinal direction in vicinity of at least one of the peaks and the troughs. A metallic layer with regions of varying material thickness and a honeycomb body produced at least partly from such metallic layers, are also provided.

Abstract: A method of stir welding T-joints comprises assembling and stir welding first and second members. The first member comprises a sheet portion of material and also comprises restraining surfaces. The second member comprises a rib. The rib is stir welded to the sheet portion with the edge margin of the rib being positioned between the restraining surfaces of the first member. During stir welding, the restraining surfaces of the first member limit movement of the rib relative to the first member. A tooling portion is preferably formed as a contiguous portion of the material of one of the first and second members. The first and second members are secured to a stir welding apparatus via the tooling portion during the stir welding. The method yet further comprises a step of separating the tooling portion from the first and second members after forming the stir welded T-joint.

Abstract: A process for producing a spatially shaped carrier layer (3) which is of foil-like design from hard brittle material includes: providing a basic mold (1) having a spatially shaped surface, depositing a material which is in the gas or liquid phase on the spatially shaped surface, solidifying the material which has been deposited on the spatially shaped surface to form a hard brittle material layer (3), and separating the hard brittle material layer (3) from the spatially shaped surface in order to obtain the carrier layer (3) which consists of hard brittle material.

Abstract: Modified contoured crushable structural members and methods for making the same are described. The contoured structural members comprise composite or metal materials sandwiching a support or stabilizing structure. The structural members are made crushable by incorporating an initiator into the structural members. The structural member crushes at the location of the initiator by absorbing the energy of an exerting load. The modified structure is provided by attaching additional structural components or elements to the end or outside of the structural member or by modifying the shape of the structural member. With a modified, contoured, crushable, and generally non-flat structure, applications and uses for the structural members of the present invention are nearly limitless.

Abstract: A method of holding a dried honeycomb structure 8, which is a honeycomb structure after a drying process and before a firing process, when a ceramic honeycomb structure in which bulkheads forming a number of cells are disposed in the form of a honeycomb is manufactured with a manufacturing method including a extruding process, the drying process, and the firing process. A chuck 1 having a plurality of claws 10 is used and the plurality of claws 10 are allowed to come into contact with an outer periphery 89 of the dried honeycomb structure 8 so that the direction of the pressure F applied to the dried honeycomb structure 8 by the claws is substantially parallel with the bulkheads 81.

Abstract: A pliable, ductile plate-shaped roof flashing is disclosed. The roof flashing has a laminate structure comprising a composite layer and a foil sheeting on one or both sides of the composite layer. The composite layer comprises a carrier material and one or more non-structural constituents. At least one of the non-structural constituents comprises a heavy metal compound having a density higher that 3.5 g/ml.

Abstract: A honeycomb acoustic unit is provided, the unit comprising first and second honeycomb layers, the layers being made of honeycomb core, each being formed by metallurgical bonds, and a deformable septum having two opposing sides, the first and second honeycomb layers being metallurgically bonded to the two opposing sides of the deformable septum.

Abstract: A composite aluminium panel comprising two parallel plates and/or sheets secured to the peaks and troughs of a corrugated aluminium stiffener sheet between the parallel plates and/or sheets, wherein the corrugated aluminium stiffener sheet is made from an aluminium alloy rolled sheet of composition (in weight percent): Mg 1.5-6.0, Mn 0.3-1.4, Zn 0.4-5.0, Fe up to 0.5, Si up to 0.5, Zr up to 0.30; optionally one or more of Cr 0.05-0.3, Ti 0.01-0.20, V 0.05-0.25, Ag 0.05-0.40, and Cu up to 0.40; and other elements up to 0.05 each, 0.15 total, with a balance of Al; and having in an H-condition or in an O-condition a ratio of PS/UTS in the range of 0.4 to 0.9 and having good roll formability.

Abstract: A honeycomb body, which is composed in such a manner that a strip of corrugated foil made of heat-resistant stainless steel containing aluminum and a strip of flat foil made of stainless steel are alternately wound or laminated on each other, is incorporated into an outer cylinder made of metal and integrated into one body by means of diffusion bonding, so that a diffusion bonded metallic catalyst carrier can be formed. Surface roughness of the strip of foil after the completion of diffusion bonding is 0.001 to 2.0 &mgr;m when it is expressed by center line average height Ra, and no sintered bridges are formed at both end portions of the diffusion bonded section in the longitudinal direction.

Abstract: Oxidation resistant sealant system comprising a honeycomb component coated with an aluminum oxide layer.

Abstract: A manufacturing method of metal substrate catalytic converter and the resulting product. In this method, a multiple layer aluminum and ferritic stainless steel composite material is first made by roll-bonding and then further processed to a final foil thickness. The composite foils are then fabricated to a honeycomb-like converter with air flow channels. The converter is then thermally treated at a high temperature during a necessary converter fabrication process. The monolithic FeCrAl alloy is then obtained in the converter by in-situ diffusion alloying with pre-oxide film on the surfaces. The resulted material has improved oxidation resistance and thermal dimension stability at a high temperature.

Abstract: A manufacturing method of a plastic laminate body, the plastic laminate body having at least one plastic laminate member that is laminated on a plastic substrate, which plastic substrate is pre-processed in advance so as to have a substantially final configuration, the manufacturing method includes softening the plastic laminate member when a transfer surface of a mold member, which is pre-processed in advance so as to have a desired configuration, is transferred to a surface of the plastic laminate member, so that an excessive part of the plastic laminate member is moved to an escape part which is pre-formed at the plastic substrate.

Abstract: A structure for encapsulating and protecting fiber insulation material as well as other materials in multicompartment devices in order to provide unitized material which can be applied to any surface desired for insulation or other purposes. A first sheet of material is formed with pockets or depressions in the sheet which are adapted for receiving the material desired to be unitized and a second sheet placed over the first sheet, and the two sheets are attached together in the areas between the pockets or depressions thus encapsulating the material in the pockets. The material is unitized by placing the material in individual sealed metal foil containers or compartments, then the individual containers of unitized material are attached in matrix form to a continuous sheet, such as positioning the containers in openings in the continuous sheet. The product can be applied to any surface desired for insulation or other purposes. Preferably a multilayer metal foil material is employed in the structures.

Abstract: A wide sheet formed of a metal foil is wound a plurality of times around outer peripheral surfaces of four honeycomb matrices arranged in series to form an intermediate tube. As a result, a subassembly is formed. A brazing filler material is wound around an outer peripheral surface of the subassembly at an end portion thereof. The subassembly is inserted into an outer tube. The outer tube is caulked to reduce an outer diameter thereof. Then, heat processing is performed in vacuum to diffusion bond a corrugated sheet and a flat sheet, which form the honeycomb matrices, and the wide sheet of the intermediate tube to each other. The intermediate tube and the outer tube are brazed to each other. Thus, a metal substrate for carrying a catalyst is achieved.

Abstract: Shaped, contoured crushable structural members and methods for making the same are described. The contoured structural members comprise composite or metal materials sandwiching a support or stabilizing structure. The structural members are made crushable by incorporating an initiator into the structural members. The structural member crushes at the location of the initiator by absorbing the energy of an exerting load. The shaped structure is provided by bending the generally straight shape of the structural member. With a shaped, contoured, crushable, and generally non-flat structure, applications and uses for the structural members of the present invention are nearly limitless.

Abstract: A multifunctional member with a first active member (30), which is adapted to contract if exposed to a temperature above a first transition temperature range. A second active member (40), which is adapted to contract if exposed to a temperature above a second transition temperature range. A core member (20), which is adaptive for deformation. The first and second active members (30, 40) are attached on opposite or different sides of the core member (20). A heat source operatively connected to the first and second active members (30, 40) to expose them to transition temperatures. The first active member (30) contracts while above the first transition temperature range causing the second active member (40) to expand, wherein the second active member (40) is below the second transition temperature range.

Abstract: The invention relates to a honeycomb (14), particularly a catalytic converter substrate, with a honeycomb structure comprising a large number of ducts (16) running in the longitudinal direction of the honeycomb, through which a fluid can flow, where the honeycomb possesses foil layers (15) arranged one above the other. In order to create a honeycomb permitting high efficiency of the catalytic conversion reactions with low thermal inertia, as well as inexpensive manufacture, it is proposed to provide ducts (16) whose cross-sectional dimension in a first direction is several times the cross-sectional dimension in another direction. In particular, the ducts can extend over the entire width of the honeycomb. In order to stabilise the honeycomb, stiffening elements (19, 20) can be provided, which are either integrated in the foil layers or separate (FIG. 3).

Abstract: The vented cell structure and fabrication method of the present invention provide an efficient and effective honeycomb structure that allows fluids to flow in and out of the honeycomb without any obstructions that may trap gases and/or liquid in the honeycomb cells. First and second honeycomb layers, including first and second cell walls, respectively, that define first and second cells, respectively, are positioned adjacent one another such that the first and second cells are misaligned. The first and second honeycomb layers are connected with adhesive only at intersections of the first and second cell walls to permit fluid to flow between the first and second cells without obstruction. A structural layer defining at least one opening aligned with the first and/or second cells is also applied on opposite sides of the first and second honeycomb layers, to thereby create the vented cell structure.

Abstract: A metallic catalyst carrier 2 has good productivity and improves the exhaust performance by causing the flow of exhaust gas therein to become turbulent, without causing tearing, cutting, and warping of its honeycomb-structure The metallic catalyst carrier 2 has a base metal sheet 5 and a corrugated metal sheet 6 laminated together with a plurality of cell passages 7 formed between the base sheet 5 and the corrugated sheet 6 such that exhaust gases passes through the cell passages 7. The base sheet 5 or the corrugated sheet 6 is equipped with a plurality of hole lines 5a or 6a arranged along hole lines 8 or 9 in a direction perpendicular to the cell passage 7. Between adjacent hole lines 8 or 9, the holes 5a or 6a that form the hole lines 8 or 9 are separated by a prescribed distance in a direction perpendicular to the longitudinal directions of the cell passages 7.

Abstract: The invention relates to laminated parts comprising outer layers and polyurethane sandwich materials, and to a method of producing these laminated parts and to their use in the automotive industry.

Abstract: A honeycomb body, which is composed in such a manner that a strip of corrugated foil made of heat-resistant stainless steel containing aluminum and a strip of flat foil made of stainless steel are alternately wound or laminated on each other, is incorporated into an outer cylinder made of metal and integrated into one body by means of diffusion bonding, so that a diffusion bonded metallic catalyst carrier can be formed. Surface roughness of the strip of foil after the completion of diffusion bonding is 0.001 to 2.0 &mgr;m when it is expressed by center line average height Ra, and no sintered bridges are formed at both end portions of the diffusion bonded section in the longitudinal direction. The catalyst carrier is manufactured in a condition so that &lgr;b, which is defined by &lgr;b=6.

Abstract: In a honeycomb sandwich panel having a honeycomb core, and a front surface layer and a rear surface layer sandwiching the honeycomb core on its upper and lower surfaces, at least one of the front surface layer and the rear surface layer is made of a fiber reinforced plastic using a phenolic resin as a matrix.

Abstract: A honeycomb body has sheet-metal layers and sheet-metal foils to be joined with brazing powder. Each of the foils has at least one sliding structure enabling the adjacent layers to slide over one another. A honeycomb body, particularly a catalyst carrier body for an exhaust system of an internal combustion engine, includes at least partially structured sheet-metal layers wound and/or stacked to form passages for fluid flow. The sheet-metal layers are at least partially joined to one another by the brazing powder. The honeycomb body also has at least one sheet-metal foil with at least one sliding structure. A process for producing the honeycomb body guarantees sharply delineated brazed joints, even for brazing powder, which results in a greatly increased lifespan, particularly with regard to thermal and dynamic loads placed on the honeycomb body when used as a catalyst carrier body in an exhaust system of an internal combustion engine.

Abstract: A honeycomb structure obtained by bonding, into one piece, a plurality of honeycomb segments (2) each having a large number of passage (6) surrounded by cell walls and extending in the axial direction of the segment. In the honeycomb structure, a material A (3) having compressive elasticity is provided between a side surface (21) of at least one honeycomb segment [2(a)] not constituting the outermost peripheral surface (23) of the honeycomb structure (1) and a side surface of the honeycomb segment [(2(b)) adjacent thereto. A honeycomb structure assembly (8) obtained by providing a material B (5) having compressive elasticity on the outermost peripheral surface (23) of the honeycomb structure (1) in a compressed state and thereby compression-holding the resulting honeycomb structure in a metallic container (11).

Abstract: A liquid interface diffusion bonded composition comprises a metal honeycomb core such as a nickel-alloy honeycomb core and a nickel-alloy facing sheet bonded thereto. The composition and method of this invention are useful in applications where high strength, heat resistant materials are required, such as in aircraft and aerospace-related structures.

Abstract: The invention relates to a honeycomb (1), particularly a catalytic converter substrate, with a honeycomb structure comprising a large number of ducts (3) running in the longitudinal direction of the honeycomb (1), through which a fluid can flow, consisting of smooth and/or structured foils arranged to form plane or curved foil layers, and a housing (2) surrounding the honeycomb structure. In order to manufacture an inexpensive honeycomb that displays a sufficiently stable honeycomb structure under the anticipated stresses and that, in addition, is particularly resistance to thermal shocks, it is proposed that stiffening elements (7a, b) connected to the foils be provided that are capable of bearing tensile stresses, at least in their longitudinal directions, and that at least partially pass through the honeycomb structure and/or are located on the outside and at least partially surround the honeycomb.

Abstract: A plurality of closed metal cells is provided. Each cell encapulates a fluid or a fluid-like filler with a metal skin or cell wall. The closed cells are joined into an aggregate arrangement to form a composite material in which the bonded cell walls form a continuous metal matrix. The cell walls and the encapulated cell filler fluid or fluid-like filler provide controllable stiffness and strength as well as vibration-damping and shock-absorbing characteristics to the material. The resulting closed cell metal composite finds many advantages uses including use as a prosthetic device, a casting, or an automotive component. The component material is elastically compliant or stiff, depending on the design, as well as lightweight and resistant to buckling and crushing. The material provides desirable physical properties such as heat-capacity, thermal and electrical conductivity, vibration-damping capacity, and shock-absorbing characteristics.

Abstract: The present invention is: a metallic foil to be used for a metallic honeycomb for purifying exhaust gas of an automobile or the like, said metallic foil not causing cracks or ruptures to develop in the foil even when it undergoes corrugation work with more sharply bending corner portions of a trapezoidal shape; and a catalyst support for purifying exhaust gas of an automobile or the like, characterized in that said metallic foil, being rough surface finished and having good corrugation workability, is made of heat-resistant stainless steel and has surface roughness more than 2.0 and not more than 5.0 &mgr;m in Rmax and, said metallic catalyst support for purifying exhaust gas has a structure comprising a honeycomb inserted in a jacket, wherein the honeycomb is composed of rough surface finished metallic foil having surface roughness more than 2.0 and not more than 5.0 &mgr;m in Rmax and the jacket is made of heat-resistant stainless steel.

Abstract: In order to improve solid phase diffusion bondability at contact portions between a metal flat foil and a metal corrugated foil together constituting a metal honeycomb body for a catalyst converter used for purifying an exhaust gas and to improve engine durability, the present invention comprises one or combination of the following structures; a structure wherein at least one of the metal foils has a foil thickness of less than 40 &mgr;m; a structure wherein an Al content after bonding is at least 3%; a structure wherein the surface condition of both metal foils in a width-wise direction has a predetermined surface coarseness or a predetermined surface shape and condition; and a structure wherein the width of contact portions between both metal foils is at least five times the thickness of the metal foils.

Abstract: A coating for metal sheets used in fabricating honeycomb structures. The coating includes a first layer located on the surface of the metal sheet. The first layer includes hydrated alumina dispersed in a binder. The coating may further include a second layer located on top of the first layer. The second layer includes a polymer sealant. The first and second layer form a coating which is corrosion resistant and bonds well to the node adhesives used in forming honeycomb structures.

Abstract: A housing for a honeycomb body includes a jacket tube with an inner wall surface. The jacket tube has a passivation layer in at least one section of the inner wall surface in order to deliberately modify a connection to the honeycomb body by joining. A method for the production of a catalyst carrier body with a honeycomb body and a housing according to the invention are also indicated. A catalyst carrier body produced in this way reduces thermal stresses between the honeycomb body and the jacket tube and, in particular, ensures a reliable brazing process during production, even in a vacuum.

Abstract: A honeycomb core material which is excellent in flame retardation, thermal insulation and noise insulation and has improved transportability and handling efficiency and which can be suitably used also for a sandwich structure of a curved shape as a foam has flexibility and elasticity, and a method for its production. A composite foam comprising a phosphoric acid type inorganic foam and a urethane type organic foam, obtained by foaming and curing an aqueous mixture containing a phosphorus-containing acid material, a curing agent, a blowing agent and a urethane polymer having NCO groups, is filled in cells of a honeycomb body having a cell size of from 3 to 100 mm and a porosity of from 92 to 99.5% according to JIS-A6931.

Abstract: A honeycomb structure brazed with an outer casing has a large corrugated foil and a small corrugated foil overlapped and wound alternately and formed like a cylinder by diffused junction. The large corrugated foil and the small corrugated foil has 20 &mgr;m in thickness. The honeycomb structure has 900 cells/square inches in cell density. The large corrugated foil has a wave height of 0.81 mm and a pitch of 1.71 mm. The small corrugated foil has a wave height of 0.05 mm to 0.18 mm and a pitch of 1.29 mm to 1.39 mm. Whereby the produced stress in each corrugated foil upon thermal expansion is reduced.

Abstract: A metal foil connection of first and second metal foils having a thickness of less than 0.05 mm includes a connecting point in which the metal foils are brazed to one another. The connecting point forms a wedge which is filled with brazing medium. A mass of the brazing medium, and a mass of sections of the metal foils which the brazing medium contacts in the wedge, have a given ratio. A honeycomb body, a brazing medium particle fraction and a method for manufacturing metal foil connections with a thickness of less than 50 micrometers, are also provided.

Abstract: The present invention provides a solder disposed configuration for a heat resistant structure for forming a catalytic converter for purifying the exhaust gas in an engine. The heat resistant structure is composed of a honeycomb structure fitted and fixed into a hollow cylindrical shell. And the honeycomb structure comprises at least a substrate having a flat sheet and a corrugated sheet. A first and a second strip of solder are disposed alongside a first and a second edge paralleling to each other on a first and a second plane surface of the substrate respectively, wherein the second plane surface is the reverse side of the first plane surface of the substrate, and the first and second edge are opposite to each other on the first and the second plane surface respectively for forming the honeycomb structure. Rolling up the substrate to form the honeycomb structure (e.g. spirally wound-form) by the solder disposed on the substrate welded and joined together.

Abstract: A method of making an expanded metal sandwich structure includes cleaning at least two metal superplastic core sheets to remove metal oxides and residues that would interfere with diffusion bonding of the sheets. The core sheets are placed face-to-face and a gas pressure line fitting is inserted between one edge and is welded into place. The fitting has a through bore through which gas can flow under pressure from a gas pressure control system into the space between the core sheets. The core sheets are pressed together and laser welded together into a core pack along lines which will form junction lines between the core sheets when the core pack is superplastically expanded. The core pack is chemically cleaned to remove metal oxides and residues that would interfere with diffusion bonding of the core pack sheets to face sheets. Two metal face sheets having superplastic characteristics are chemically cleaned and placed over and under the core pack.

Abstract: A metallic carrier for automobile exhaust gas purification made of thin metal foil includes a honeycomb unit composed of 8-25 &mgr;m thick corrugated metal foil and flat metal foil joined by solder joints not fewer than 70% of which have a thickness of at least 1.5 times and not greater than 4 times the foil thickness. A method of producing the metal carrier includes a step of forming a honeycomb unit in which 8-25 &mgr;m thick corrugated metal foil and flat metal foil are joined by solder joints using a solder powder, the solder powder having a particle diameter not greater than 4.5 times the thickness of the metal foil constituting the honeycomb unit.

Abstract: A conical honeycomb body and method for producing the honeycomb body that avoids the deformations occurring when fixing a conical lamellar body in a conical casing tube is described. Clamping aids are disposed in the casing tube at a distance from its openings and are configured such that at least in sections they have a ring shape. The clamping aids allow for the economical production of conical honeycomb bodies having greater mechanical strength. Their variants make it possible to influence the function of the edge area of the conical honeycomb body in a targeted manner. Especially beading, necking and/or rings achieve, for example, a barrier effect so that no fluids are able to circulate in the channels situated in the edge area of the casing tube. The openings of the casing tube are free of inserted elements and can therefore be easily welded to other components of the exhaust-gas system.

Abstract: Disclosed is a friction stir welding technique which avoids occurrence of a dent, in adjoining region, extending to a level beneath the joined surfaces, structural body formed. At end portions of the frame members to be joined, at the joining region, thickened parts which project toward the rotary body joining tool are provided. The rotary body joining tool has a small-diameter tip portion and a larger diameter portion. The rotary body joining tool is inserted in the thickened parts. In a state where the rotary body joining tool has been inserted small-diameter tip end first, to a level where the larger diameter portion of the rotary body joining tool overlaps the thickened part but does not extend below the upper surface of the non-thickened surfaces of the members joined, the rotary body is rotated and moved along the joining region.

Abstract: The present invention provides for a method to reduce the strength of the honeycomb of a jet turbine stator, increasing its machinability, with a resultant reduction in measured peak tooth temperature, while maintaining or even improving its high temperature capability, so as not to limit its operating environment. The air seal functionality is unaffected, and even improved in some instances. The machinability of the honeycomb is increased by using a light element diffused into the honeycomb ribbon to produce the effect of reducing its strength and ductility while maintaining the environmental resistance needed. The present invention also includes the stator honeycomb produced by the foregoing method.

Abstract: A metallic carrier for automobile exhaust gas purification made of thin metal foil includes a honeycomb unit composed of 8-25 &mgr;m thick corrugated metal foil and flat metal foil joined by solder joints not fewer than 70% of which have a thickness of at least 1.5 times and not greater than 4 times the foil thickness. A method of producing the metal carrier includes a step of forming a honeycomb unit in which 8-25 &mgr;m thick corrugated metal foil and flat metal foil are joined by solder joints using a solder powder, the solder powder having a particle diameter not greater than 4.5 times the thickness of the metal foil constituting the honeycomb unit.

Abstract: A wide sheet formed of a metal foil is wound a plurality of times around outer peripheral surfaces of four honeycomb matrices arranged in series to form an intermediate tube. As a result, a subassembly is formed. A brazing filler material is wound around an outer peripheral surface of the subassembly at an end portion thereof. The subassembly is inserted into an outer tube. The outer tube is caulked to reduce an outer diameter thereof. Then, heat processing is performed in vacuum to diffusion bond a corrugated sheet and a flat sheet, which form the honeycomb matrices, and the wide sheet of the intermediate tube to each other. The intermediate tube and the outer tube are brazed to each other. Thus, a metal substrate for carrying a catalyst is achieved.

Abstract: The invention provides a metal honeycomb core body used as the principal structural element of an exhaust gas cleaning unit excellent in various performances and economy that is provided with a corrugated band member, that is a structural member of a metal honeycomb core body having a special waveform structure. The invention provides a metal honeycomb core body having honeycomb structure fabricated by bringing corrugated band members (1) and planar band members (2) made of thin-walled metal sheet alternately into contact. The corrugated band member (1) has a waveform structure obtained by using a waveform of an imaginary corrugated sheet (1′) having crests and troughs which are in contact with a planar band member (2) and composed of a connected waveform having a desired waveheight (h) and one period length (&lgr;′).

Abstract: A coating for metal sheets used in fabricating honeycomb structures. The coating includes a first layer located on the surface of the metal sheet. The first layer includes hydrated alumina dispersed in a binder. The coating may further include a second layer located on top of the first layer. The second layer includes a polymer sealant. The first and second layer form a coating which is corrosion resistant and bonds well to the node adhesives used in forming honeycomb structures.

Abstract: End portions of face plates 21 and 22 of a hollow extruded frame member 20 are connected with a rib 24 and these end portions are welded to end portions of face plates 11 and 12 of a hollow extruded frame member 10 using friction stir welding. A visible outline of a connection portion of the end portion of the face plate 21 and the rib 24 is constituted by circular arcs 31 and 32 which are recessed in the hollow extruded frame member 20. A visible outline of a connection portion of the end portion of the face plate 22 and the rib 24 is constituted by circular arcs 33 and 34 which are recessed in the hollow extruded frame member 20. The diameter of the circular arc 31 (33) is smaller than the diameter of the circular arc 32 (34). Accordingly, a structural body having a light weight structure can be obtained.

Abstract: A stack assemblage of metallic, paper, or paper-like sheets or strips of material secured to one another to define a honeycomb core structure when the assemblage is expanded and flange tabs provided on the opposite edges of said stack. When the stack is expanded, the flange tabs can be deformed into flange orientation on the opposite edges of said stack. The method of fabricating the flange tabs and flanges on the assemblage and the expanded core structure.

Abstract: A metal foil connection of first and second metal foils having a thickness of less than 0.05 mm includes a connecting point in which the metal foils are brazed to one another. The connecting point forms a wedge which is filled with brazing medium. A mass of the brazing medium, and a mass of sections of the metal foils which the brazing medium contacts in the wedge, have a given ratio. A honeycomb body, a brazing medium particle fraction and a method for manufacturing metal foil connections with a thickness of less than 50 micrometers, are also provided.

Abstract: The present invention relates to honeycomb structures having cell walls of increased thickness wherein multiple layers of cell wall material are not bonded together except on two opposite cell wall sides. The invention also includes a process for making such honeycomb structures.

Abstract: Multilayer metal foil pads or panels for heat or sound insulation or shielding comprising two or more corrugated metal foil or metal sheet layers wherein a flat metal foil or metal sheet layer is positioned between each pair of corrugated layers. The corrugated layers and/or the flat layers may be embossed, patterned or textured to enhance performance of the pad or panel. A preferred pad or panel comprises an embossed, patterned or textured flat exterior layer adapted for contacting the surface to be insulated or shielded to provide air space between the pad or panel and the surface and to separate the first corrugated layer from the surface. Methods are provided for making the pads and panels, which are useful in automotive applications, food cooking devices and other uses.