Abstract: A metal heating furnace for heating slabs, billets or blooms prior to their hot rolling. Full use to thermal energy can be ensured and the workpieces can be uniformly heated to a desired rolling temperature.

Abstract: The furnace effects a partial heat-treatment of drills and similar tools having a clamping portion and a working portion and with respect to which it is important to subjecting only the working portion, to a heat treatment, particularly hardening. The physical properties of the clamping portion are, retained essentially in their original state during the heat treatment. The furnace is provided with a tool receiver that cooperates with hearth-bottom plates that are traversed by cooling fluid. The tool receiver assures that the drills or other similar tools are maintained in their clamping portion at substantially the same temperature level during the heat treatment while the working portion of the tools is freely exposed to the heating and quenching.

Abstract: The present invention relates to a support for products in a steel-making furnace. This support comprises, over a notable part of its height, but not over the whole of its height, from its base, a peripheral recess in which is housed an insulating envelope, the outer diameter of this envelope being substantially equal to that of the upper part of the stud.

Abstract: A method of and a device for the shipping of hot metal goods, such as hot steel ingots and slabs, in which the ingots or slabs are lowered into a container in which a granular insulating material, preferably porous vermiculite, is fluidized by a pressurized gas during the introduction of these metal goods. The particles of the insulating material, upon termination of the fluidization are then allowed to pack around and envelop the metal goods. The insulating material is again fluidized during withdrawal of the metal goods at the unloading site.

Abstract: PCT No. PCT/US79/00792 Sec. 371 Date Sept. 27, 1979 Sec. 102(e) Date Sept. 27, 1979 PCT Filed Sept. 27, 1979Parts (12) to be treated are placed in grid bottomed tubs (14a,14b,14c) and the tubs (14a,14b,14c) are stacked one upon the other. A flow of treating gas is directed exteriorly about and internally through the tubs (14a,14b,14c) from an entrance end (26) to an exit end (28). If the parts (12) in the entrance tub or tubs (14a,14b) are sufficiently but not overly treated, it has been found that the parts (12) near the exit end (28) of tub or tubs (14b,14c) are not sufficiently treated. If the parts (12) near the exit end (28) tub or tubs (14b,14c) are sufficiently treated, then the parts (12) in the entrance end (26) of tub or tubs (14a,14b) are over treated.

Abstract: A cooling bed for cooling and straightening rods or bars which are delivered hot from a rolling mill as side-by-side conveyor chains provided with projections between which pockets for the articles are defined. Reversal sprocket wheels at the infeed end are interconnected so that the pockets at the infeed end remain accurately in alignment, notwithstanding chain wear and differential expansion under the heat conditions. Reversal sprocket wheels at the discharge end are not drivingly interconnected, at least under normal operating conditions. Individual hydraulic drive motors drive the reversal wheels as shown or separate drive wheels which cooperate with the lower runs of the conveyor chains to keep the upper runs taut individually. The individually driven sprocket wheels are mounted with angular lost motion on a connection shaft to avoid one of the motors being overloaded under exceptional circumstances.

Abstract: A heat treating fixture is disclosed in which the shape of the metal specimen is maintained by cold rolled steel support plates. Glide sheets of stainless steel, coated with boron nitride, in contact with each face of the metal specimens, allow for lateral expansion of the metal specimens without binding. Grooved support bars separate the glide sheets from the upper and lower support plates and allow flow of quenching fluid to the metal specimen.

Abstract: The apparatus is provided with a manifold-type means of feeding gas into the bore of the treated object and a means of discharging gas from the bore of this object which are secured as cantilevers to brackets of a frame. These means are provided with drives enabling them to displace longitudinally so as to assure the clamping of the treated object therebetween at the end faces. The apparatus is also provided with a drive causing the treated object to rotate integrally with said means. Contrivances serving to heat up and subsequently to cool down the treated object are mounted on a platform which is installed on horizontal guides and is provided with a drive for longitudinal travel.

Abstract: A support for a workpiece to be heated, the support comprising a laminate of metal strip arranged in face-to-face relation with the adjacent normally upper strip edges forming a support surface.

Abstract: Apparatus and method of circulating a gas through coils of very long tubing during a heat treatment, wherein the coils of tubing are placed on hollow frames through which the clearing gas passes. The frames are fitted with nozzles to which at least one end of each coil can be connected. The invention can be applied to continuous annealing of coils of small-diameter copper tubing with a view to removing the last traces of drawing lubricant.

Abstract: A fixture for low-warp hardening of thin-walled annular sealing members of hardenable metallic materials, having a O-shaped cross section and capable of being charged in a tempering furnace or the like. The fixture consists of a plurality of stackable trays having an annular rim on top and, radially within the rim, an annular web to accommodate a sealing member. The height of the web is at least equal to that of the rim and is greater than the depth of the sealing member. The under-side of the next tray is flat in the neighborhood of the web and presses the sealing member down on the web.