Thermal simulation method of thermal-mechanical treatment of high strength automobile steel impact specimen

A technology of deformation heat treatment and impact specimen, applied in the field of thermal simulation

Active Publication Date: 2017-03-22
NORTHEASTERN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] Aiming at the problem that it is difficult for existing thermal simulation testing machines to perform high-temperature deformation heat treatment on large-sized samples shaped like impact samples, the present invention provides a thermal simulation method for deformation heat treatment of high-strength automobile steel impact samples; There is a thermal simulation t

Method used

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  • Thermal simulation method of thermal-mechanical treatment of high strength automobile steel impact specimen
  • Thermal simulation method of thermal-mechanical treatment of high strength automobile steel impact specimen
  • Thermal simulation method of thermal-mechanical treatment of high strength automobile steel impact specimen

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Embodiment 1

[0111] A kind of material is the thermal simulation method of the deformation heat treatment of the impact sample of 22MnB5 hot-formed steel, specifically comprises the following steps:

[0112] Step 1, perform (A) and (B), (A) and (B) in no order:

[0113] (A) Determine the size of the simulated sample:

[0114] Based on the size of the standard impact sample, determine the size of the simulated sample:

[0115] The standard impact sample is a cuboid, and the specific dimensions are as follows: figure 1 As shown, suppose: the length of the bottom of the cuboid is H 长 = The width of the base of the cuboid is H 宽 =10mm, the height of the cuboid is H 高 = 55mm.

[0116] The structure of the simulated sample is an integrated structure. The simulated sample is composed of a simulated cuboid, 2 stepped platforms and 2 clamping ends. The same stepped platforms are respectively arranged on both sides of the two bottom surfaces of the simulated cuboid. The two sides are respectiv...

Embodiment 2

[0151] A thermal simulation method for deformation heat treatment of impact specimens of high-strength plastic heat-forming experimental steel, the composition and mass percentage of the high-strength plastic heat-forming experimental steel are: C: 0.19, Si: 1.55, Mn: 1.53 , Ni: 0.95, Cr: 1.01, Cu: 1.01, B: 0.0027, Al: 0.025, Ti: 0.033, Mo: 0.45, S: 0.004, P: 0.008, and the balance is Fe, specifically including the following steps:

[0152] Step 1, perform (A) and (B), (A) and (B) in no order:

[0153] (A) Determine the size of the simulated sample:

[0154] Based on the size of the standard impact sample, determine the size of the simulated sample:

[0155] The standard impact sample is a cuboid, and the specific dimensions are as follows: figure 1 As shown, suppose: the length of the bottom of the cuboid is H 长 = The width of the base of the cuboid is H 宽 =10mm, the height of the cuboid is H 高 = 55mm.

[0156] The structure of the simulated sample is an integrated stru...

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Abstract

The invention provides a thermal simulation method of thermal-mechanical treatment of high strength automobile steel impact specimen, and belongs to the technical field of thermal simulation. The method comprises the steps of (1) based on the size the a standard impact specimen, determining the simulation specimen size, the simulation specimen comprises a simulation rectangle, two ladder platforms and two clamp ends, determining the high temperature thermal-mechanical treatment process parameters applied in the heat simulation process, (2) welding a thermal couple on the surface of the simulation rectangle of the simulation specimen, (3) installing the simulation specimen on a thermal simulator, (4) conducting heat treatment to the simulation specimen, determining the average temperature area of the post-heated simulation specimen, (5) conducting compression test to the simulation specimen, determining the post-compression average temperature area of the simulation specimen, (6) conducting cooling treatment to the simulation specimen, (7) checking the simulation specimen surface, (8) processing the simulation specimen into a standard impact specimen, and verifying if the impact process is effective. The method can enhance the repeatability of the organization and preparation of the impact specimen of high strength automobile steel and the control precision of process parameters.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of thermal simulation, in particular to a thermal simulation method for deformation heat treatment of high-strength automobile steel impact specimens. [0003] Background technique: [0004] As the three major themes in the automotive field, energy saving, environmental protection and safety have always been valued. In recent years, with the stricter car collision safety level and exhaust emission standards, on the premise of ensuring the safety performance of the car, it is necessary to reduce the curb quality of the car as much as possible, improve the power of the car, reduce fuel consumption, and reduce the risk of exhaust pollution. Automobile lightweight technology has achieved rapid development. Therefore, the scope and proportion of advanced high-strength steel and ultra-high-strength steel in the manufacture of automobile body-in-white are rapidly increasing. It is worth noting that the ult...

Claims

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Application Information

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IPC IPC(8): G01N1/44
CPCG01N1/44
Inventor 彭良贵刘伟杰冯莹莹
Owner NORTHEASTERN UNIV
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