Tool for heat treatment of special-shaped steel castings and hoisting method
A steel casting and special-shaped technology, applied in the field of heat treatment, to achieve the effect of improving operating efficiency, increasing furnace loading capacity, and improving furnace space utilization
Pending Publication Date: 2021-04-09
LEADRUN MAODA CASTING JIANGSU
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Problems solved by technology
[0004] The technical problem to be solved by the present invention is: according to the structural characteristics of special-shaped parts, vertical furnace is adopted, and a detachable heat treatment tool for easy loading and unloading of castings is used for heat treatment, which can not only prevent deformation of castings, but also improve furnace charging efficiency and furnace loading, improve product yield and reduce costs
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[0022] The present invention will now be described in further detail in conjunction with the accompanying drawings and preferred embodiments. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.
[0023] As shown in Figure 1-3, a tooling for heat treatment of special-shaped steel castings includes two parts: the outer frame component A and the lifting component B. The outer frame assembly A includes a bottom plate 1 , a column 2 , a beam 3 , a lifting lug 4 , a card seat 5 , a positioning seat 6 and a drain hole 7 . The hoisting assembly B includes a suspension rod 8 , a cross bar 9 , a reinforcing rib 10 , a support 11 , a hook 12 and a suspension ring 13 .
[0024] The bottom plate 1 is machined from a heat-resistant steel plate, and its purpose is to bear the weight of the casting and the entire tooling.
[0025]...
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The invention relates to a tool for heat treatment of special-shaped steel castings and a hoisting method. The tool comprises an outer frame component and a hoisting component, wherein the outer frame component comprises a bottom plate, stand columns, cross beams, lifting lugs, clamping bases, a positioning base and liquid discharging holes; and the hoisting component comprises a hoisting rod, cross rods, reinforcing ribs, supports, a hook and a hoisting ring. According to the tool for heat treatment of the special-shaped steel castings and the hoisting method, the stability of the castings in heat treatment and hoisting processes can be ensured, direct contact with the castings in a quenching process is avoided, and casting deformation is prevented; and meanwhile, furnace charging is conducted in a vertical mode, tools can be stacked, the hearth space utilization rate is effectively increased, and the furnace charging amount is increased. In addition, a detachable hoisting system is convenient to assemble, disassemble and hoist, and the operation efficiency can be improved.
Description
technical field [0001] The invention relates to the technical field of heat treatment, in particular to a tooling and hoisting method for preventing heat treatment deformation of special-shaped steel castings and facilitating shot blasting. Background technique [0002] Heat treatment is a key process to improve the internal structure of castings. Special-shaped steel castings are key components on subway bogies. The whole is a thin-walled special-shaped part, which is easily distorted and deformed during the heat treatment process, resulting in the size of the casting not meeting the requirements of the drawing, resulting in The casting is scrapped. After heat treatment, special-shaped parts are easy to be stacked during hoisting during shot blasting, which will cause incomplete shot blasting on the surface of some castings. [0003] In the prior art, in order to prevent the deformation of special-shaped parts, the furnace loading method of flat laying, padding, and non-st...
Claims
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IPC IPC(8): C21D9/00C21D1/62
CPCC21D9/0068C21D1/62C21D9/0062C21D9/0018C21D9/0025
Inventor 朱正锋吕昌略曹松王少平许培鑫肖建涛
Owner LEADRUN MAODA CASTING JIANGSU