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Sample clamping device for thin plate impact performance detection and test method

A technology of impact performance and impact test, which is used in measuring devices, using repetitive force/pulse force to test the strength and strength characteristics of materials, etc. Effect

Pending Publication Date: 2020-04-17
TANGSHAN IRON & STEEL GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is a sample clamping device and test method for testing the impact properties of thin plates, which solves the phenomenon that the samples are prone to warping during the impact process of evaluating the low-temperature brittleness of high-strength thin steel plates in the Charpy impact test, Ensure the accuracy of test results

Method used

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  • Sample clamping device for thin plate impact performance detection and test method
  • Sample clamping device for thin plate impact performance detection and test method
  • Sample clamping device for thin plate impact performance detection and test method

Examples

Experimental program
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Effect test

Embodiment 1

[0034] Using this device to measure the sample of 1300MPa grade material in the undeformed state, respectively 20 ℃, 10 ℃, 0 ℃, -10 ℃, -20 ℃, -30 ℃, -40 ℃, -50 ℃, -60 ℃, Impact test under 10 temperature conditions at -70°C. A non-standard sample of 55×1.2×10 mm is used, and the depth of the V-shaped notch is 2 mm. The selected testing machine is a Charpy V-notch impact testing machine with a blade arc radius of 2mm and an impact energy of 100J.

[0035] A sample clamping device for testing the impact performance of thin plates, including an impact test bench beam 5, an impact test bench 6, and a jaw support block 1, fastening bolts 2, clamping hooks 3, gaskets 4, and samples Concave platform 7, the jaw support block 1 is a long steel plate, a sample concave platform 7 is arranged on one side of the steel plate, the shape of the gasket 4 matches the sample 8, and the end of the clamping hook 3 is a connecting The body steel plate is provided with a bolt hole, and one end is p...

Embodiment 2

[0048] Using this device to measure the sample of 1300MPa grade material in the pre-stretched state of 3%, respectively 20 ℃, 10 ℃, 0 ℃, -10 ℃, -20 ℃, -30 ℃, -40 ℃, -50 ℃, Impact test under 10 temperature conditions of -60°C and -70°C. A non-standard sample of 55×1.2×10 mm is used, and the depth of the V-shaped notch is 2 mm. The testing machine used is a Charpy V-notch impact testing machine with a blade arc radius of R2 and an impact energy of 50J.

[0049]A sample clamping device for testing the impact performance of thin plates, including an impact test bench beam 5, an impact test bench 6, and a jaw support block 1, fastening bolts 2, clamping hooks 3, gaskets 4, and samples Concave platform 7, the jaw support block 1 is a long steel plate, a sample concave platform 7 is arranged on one side of the steel plate, the shape of the gasket 4 matches the sample 8, and the end of the clamping hook 3 is a connecting The body steel plate is provided with a bolt hole, and one end...

Embodiment 3

[0062] Use this device to measure the sample of 1300MPa grade material in the pre-stretched state of 6%, respectively at 20°C, 10°C, 0°C, -10°C, -20°C, -30°C, -40°C, -50°C, - Impact test under 10 temperature conditions of 60°C and -70°C. A non-standard sample of 55×1.2×10 mm is used, and the depth of the V-shaped notch is 2 mm. The testing machine used is a Charpy V-notch impact testing machine with a blade arc radius of R2 and an impact energy of 30J.

[0063] A sample clamping device for testing the impact performance of thin plates, including an impact test bench beam 5, an impact test bench 6, and a jaw support block 1, fastening bolts 2, clamping hooks 3, gaskets 4, and samples Concave platform 7, the jaw support block 1 is a long steel plate, a sample concave platform 7 is arranged on one side of the steel plate, the shape of the gasket 4 matches the sample 8, and the end of the clamping hook 3 is a connecting The body steel plate is provided with a bolt hole, and one ...

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Abstract

The invention relates to a sample clamping device for thin plate impact performance detection and a test method, and belongs to the technical field of metallurgical detection. The device comprises a jaw supporting block (1), a fastening bolt (2), a clamping hook (3), a gasket (4) and a sample wafer concave table (7). And the clamping hooks (3) are fixed on the impact test bed cross beam (5) and the impact test bed (6) through the fastening bolts (2). The sample clamping device for detecting the impact performance of the thin plate is adopted to detect the impact performance of the thin plate,so that the phenomenon that a sample piece is easy to warp in the impact process when the Charpy impact test is used for evaluating the low-temperature brittleness of the high-strength thin steel plate is solved, the low-temperature impact strength of the high-strength thin steel plate is evaluated, and the accuracy of a test result is ensured. The device is simple to manufacture and convenient tooperate.

Description

technical field [0001] The invention relates to a sample clamping device and a test method for testing the impact performance of a thin plate, belonging to the technical field of metallurgical testing. Background technique [0002] The vehicle manufacturing industry has strict requirements on the low-temperature brittleness of high-strength thin steel plates. The Secondary Work Embrittlement (SWE) test is a test method for evaluating the impact performance of mild steel plates at different temperatures after stamping. It can be used for mild steel Low-temperature brittleness performance evaluation, this test makes a thin disc into a cup shape by machining and makes the cup edge flat. For high-strength steel plates, because of the large difference in stamping performance from mild steel, cracking is prone to occur during the process of punching cup-shaped samples. Therefore, secondary processing brittleness is not suitable for low-temperature brittleness properties of high-st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/04G01N3/34G01N3/303
CPCG01N3/04G01N3/303G01N3/34G01N2203/0098G01N2203/0222G01N2203/0228G01N2203/027G01N2203/0298
Inventor 齐建群李佳宁杜雁冰王秋雨高华孟根巴根王浩宇张茜张涛
Owner TANGSHAN IRON & STEEL GROUP
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