Heat treatment technology of alloy spring cold-rolled steel strip 51CrV4 of automobile clutch diaphragm

A cold-rolled steel strip, 51crv4 technology, applied in the field of 51CrV4 heat treatment process of automobile clutch diaphragm alloy spring cold-rolled steel strip, can solve the problems of long production cycle, high production cost, large energy consumption, etc., and achieve non-fragile edge and crystal Boundary shattering, high deformation resistance, and the effect of restoring normal tissue

Active Publication Date: 2016-03-16
SUZHOU XIANGLOU METAL PROD
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Problems solved by technology

[0002] At present, with the rapid development of the automobile industry, the performance of automobiles is constantly being refreshed. Among them, the clutch diaphragm spring is one of the core components of the automobile engine. energy, and heat treatment is easy to cause waste products, increase metal consumption, low production efficiency and high production cost, and the service life of the car is also improved, so a new car clutch diaphragm alloy spring cold-rolled steel strip 51CrV4 pair is proposed Spring steel strips set new demands

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  • Heat treatment technology of alloy spring cold-rolled steel strip 51CrV4 of automobile clutch diaphragm
  • Heat treatment technology of alloy spring cold-rolled steel strip 51CrV4 of automobile clutch diaphragm
  • Heat treatment technology of alloy spring cold-rolled steel strip 51CrV4 of automobile clutch diaphragm

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Embodiment Construction

[0030] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0031] see Figure 1 to Figure 3 , the embodiment of the present invention includes:

[0032] An automobile clutch diaphragm alloy spring cold-rolled steel strip 51CrV4 heat treatment process, the composition mass % ratio of the alloy spring cold-rolled steel strip 51CrV4 is: C: 0.5-0.55; SI: 0.2-0.35; Mn: 0.85-1.1: P : 0.02; S: 0.01; Cr: 1.0-1.2; V: 0.1-0.2; Al: 0.035, characterized in that the heat treatment process steps of cold-rolled steel strip S50C are as follows:

[0033] Step 1: Take the billet hot-rolled steel strip, the steel number is 51CrV4 alloy spring steel strip, the specification is 4.5*1270mm*C (coil), pickling, remove the oxid...

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Abstract

The invention discloses a heat treatment technology of an alloy spring cold-rolled steel strip 51CrV4 of an automobile clutch diaphragm. According to the heat treatment technology, blanks are subjected to cold-rolling deformation for nine times and annealing heat treatment for three times, the temperature of a heating section is controlled, the cooling temperature and speed are controlled, the atmosphere in a heating furnace is heated and subjected to thermal insulation in a non-oxidation state in the cold-rolling and annealing heat treatment processes, and an oxidized grain boundary and a decarburized layer are avoided. With the adoption of the scheme, the production cost is reduced, and the product performance meets the international standard.

Description

technical field [0001] The invention relates to the technical field of metal heat treatment technology, in particular to a 51CrV4 heat treatment process for an alloy spring cold-rolled steel strip of an automobile clutch diaphragm. Background technique [0002] At present, with the rapid development of the automobile industry, the performance of automobiles is constantly being refreshed. Among them, the clutch diaphragm spring is one of the core components of the automobile engine. energy, and heat treatment is easy to cause waste products, increase metal consumption, low production efficiency and high production cost, and the service life of the car is also improved, so a new car clutch diaphragm alloy spring cold-rolled steel strip 51CrV4 pair is proposed Spring steel strips set new demands. Contents of the invention [0003] The technical problem mainly solved by the present invention is to provide a 51CrV4 heat treatment process for automobile clutch diaphragm alloy s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22C38/02C22C38/04C22C38/18C22C38/12C21D8/02C21D1/26
CPCC21D1/26C21D8/0268C22C38/02C22C38/04C22C38/12C22C38/18
Inventor 张骁唐卫国孙俊卿
Owner SUZHOU XIANGLOU METAL PROD
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