There is disclosed a softening method for a high-strength Q & P steel hot-rolled coil, comprising: after heating a Q & P steel ingot, subjecting it to rough rolling, finish rolling, laminar cooling and coiling to obtain a hot-rolled coil; after unloading the coil, covering the coil on-line with an insulating enclosure and moving it into a steel coil warehouse along with a transport chain; after a specified period of insulating time, removing the coil from the insulating enclosure, and cooling it to room temperature in air, wherein the coiling is performed at a temperature of 400-600 C.; said covering on-line with an insulating enclosure means each hot-rolled coil is individually covered with an independent, closed insulating enclosure unit within 60 minutes after unloading; the insulating time of the steel coil in the insulating enclosure is 60 minutes. The inventive method replaces the intermediate annealing step in the production process of cold-rolled Q & P steel. The inventive method has low cost and high efficiency, and it is not affected by the surrounding environment.

The present invention improves the strength of the bottom (net) of the jig and makes it more difficult and unlikely for deviation of the mesh to occur. A workpiece is loaded on the net (2) of the heat treat furnace jig (hereinafter, heat treatment furnace jig). In the net (2), a first strand (10), a second strand (20) and a third strand (30) are in contact at a contact point (X1). Near the contact point (X1), the second strand (20) overlaps the first strand (10) from above and the third strand (30) overlaps the first strand (10) from below. As a result, the first strand (10) is held between the second strand (20) and the third strand (30) in the up/down directions.

A system for supporting castings during thermal treatments, such as solution heat treatment, quenching and aging, that includes a tray defining a horizontal base plane and having a plurality of tray openings therethrough, and a fixture extending over one or more of the tray openings. The fixture is formed by a plurality of support plates oriented vertically with lower portions extending across the tray opening and top edges extending above the tray opening with shaped profiles along the lengths thereof. The plurality of support plates form an open lattice having a plurality of top edges that together define an open support surface that is substantially complementary with an underside surface of a casting and configured to loosely support the casting atop the lattice and align the casting in space above the tray opening.

A system and method for recovering a high yield of low carbon ferrochrome from chromite and low carbon ferrochrome produced therefrom. A stoichiometric mixture of feed materials including scrap aluminum granules, lime, silica sand, and chromite ore are provided into a plasma arc furnace. The scrap aluminum granules are produced from used aluminum beverage containers. The feed materials are heated, whereupon the aluminum in the aluminum granules produces an exothermic reaction reducing the chromium oxide and iron oxide in the chromite to produce molten low carbon ferrochrome with molten slag floating thereon. The molten low carbon ferrochrome is extracted, solidified and granulated into granules of low carbon ferrochrome. The molten slag is extracted, solidified and granulated into granules of slag.

An apparatus of size correction for a hot stamping component is provided. The apparatus includes a jig frame and a plurality of attaching units disposed on the jig frame to rotate in an anteroposterior direction and support a hot stamping component including a quenched component which is partially quenched along the jig frame in the anteroposterior direction. A plurality of clamping units disposed on the jig frame and configured to clamp the hot stamping component. A plurality of measurement units mounted on the jig frame and measure a height of the quenched component based on a predetermined zero base. A plurality of correction units are mounted in front of the jig frame corresponding to the quenched component of the hot stamping component. A force is applied to the quenched component in a vertical direction based on the height size, measured by the measurement unit to adjust the height.

A method and system for recovering a high yield of low carbon ferrochrome from chromite and low carbon ferrochrome produced by the method. A stoichiometric mixture of feed materials including scrap aluminum granules, lime, silica sand, and chromite ore are provided into a plasma arc furnace. The scrap aluminum granules are produced from used aluminum beverage containers. The feed materials are heated, whereupon the aluminum in the aluminum granules produces an exothermic reaction reducing the chromium oxide and iron oxide in the chromite to produce molten low carbon ferrochrome with molten slag floating thereon. The molten low carbon ferrochrome is extracted, solidified and granulated into granules of low carbon ferrochrome. The molten slag is extracted, solidified and granulated into granules of slag.

A sample holder for annealing apparatus and electrically assisted annealing apparatus using the same are provided. The sample holder includes a heat conductive shell, high thermal conductive and electrical insulation blocks, first and second electrodes. The heat conductive shell includes a base frame and a top cover. The high thermal conductive and electrical insulation blocks are adjacent to the base frame and the top cover, respectively, and a sample pallet is sandwiched therebetween. Length and width of the sample pallet is smaller than that of the high thermal conductive and electrical insulation blocks. The first and the second electrodes are fixed to two sides of the sample pallet, and are connected to electrifying wire respectively. Thickness of the first and the second electrodes is smaller than that of the sample pallet, while the width of the first and the second electrodes is longer than that of the sample pallet.

Embodiments include a heating device for heating a workpiece, including a furnace defining a closed space insulated from an exterior and surrounded by a heat insulator, a heater disposed in the furnace to heat a workpiece, a bar-shaped support element for supporting a workpiece in the furnace, and bases holding longitudinal ends of the support element for mounting the support element on a wall of the furnace, the support element being configured to increase the bending strength against sagging between its longitudinal ends.

The present invention discloses a tool holding device for shank type tools, comprising at least one tool holder, a base part and a top part, whereby at least the top part comprises uptake holes for the at least one tool holder characterized in that, the tool holding device can be used for more than one process step among transfer, cleaning, pretreatment, coating, posttreatment, and each of the at least one tool holders can optionally take up a sleeve holding the shank type tool in a distinct, preferably upright position and comprises one or more openings, which allow fluid and/or solid treatment agents to exit the tool holder and/or sleeve and the at least one tool holder and/or sleeve enables three-fold rotation of the shank type tool. Further a method using the inventive tool holding device is disclosed.

A quench system for applying cooling air to one or more hot metallic components that are supported on a component support having a substantially open construction. The quench system includes a housing having sidewalls that define a cooling chamber with peripheral portions proximate the sidewalls and a center portion spaced inwardly from the sidewalls. The quench system also includes a conveyance system that is configured to carry the component support into the center portion of the cooling chamber, as well as a forced air fan that generates a bulk flow of cooling air through the cooling chamber. The quench system further includes a plurality of nozzle baffles extending inwardly from the plurality of sidewalls to define a narrowing region within the housing between the forced air fan and the conveyance system, whereby, during operation of the fan, cooling air flowing through the peripheral portions of the cooling chamber is redirected into the center portion of the cooling chamber.