Test device and test method for platform formation performance under ultralow temperature

A sheet metal forming and testing device technology, applied in the direction of measuring devices, analyzing materials, strength properties, etc., can solve the problems of inability to obtain deformation information and mechanical properties of metal sheets, and achieve in-situ and dynamic real-time, accurate test data, and material parameters. many effects

Active Publication Date: 2019-01-18
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] The technical problem to be solved in the present invention is: in order to overcome the existence of the existing testing device that can only obtain the basic mechanical parameters

Method used

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  • Test device and test method for platform formation performance under ultralow temperature
  • Test device and test method for platform formation performance under ultralow temperature
  • Test device and test method for platform formation performance under ultralow temperature

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Experimental program
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specific Embodiment approach 1

[0034] Specific implementation mode one: as figure 1 As shown: the test device for sheet metal formability described in this embodiment includes an ultra-low temperature cooling system 1, a deformation test system 2, an incubator 4, a coolant recovery device 5 and an exhaust device 6;

[0035] The deformation testing system 2 is arranged in the incubator 4; the ultra-low temperature cooling system 1, the coolant recovery device 5 and the exhaust device 6 are arranged outside the incubator 4;

[0036] The incubator 4 is provided with a transparent observation window 4-1, two exhaust holes 4-2, a liquid inlet hole and a liquid discharge hole 4-3; the transparent observation window 4-1 is used for monitoring the metal plate Deformation information under a complex stress state, the exhaust device 6 communicates with the casing of the incubator through an exhaust hole 4-2, communicates with the deformation testing system 2 through another exhaust hole 4-2, and The mist in the incu...

specific Embodiment approach 2

[0041] Specific implementation mode two: as Figure 1-7 As shown, the deformation testing system 2 described in this embodiment also includes an upper binder ring 2-6 and a lower binder ring 2-7; the upper binder ring 2-6 and the lower binder ring 2-7 are both It is a circular ring and is arranged coaxially with the upper and lower clamps; the upper binder ring 2-6 is located under the upper clamp 2-1, and the lower binder ring 2-7 is located under the lower clamp 2- 2, sheet metal 8 is installed between the upper blank holder 2-6 and the lower blank holder 2-7.

[0042] Other composition and connection methods are the same as those in Embodiment 1.

specific Embodiment approach 3

[0043] Specific implementation mode three: as image 3 with 7 As shown: the lower surface of the upper binder ring 2-6 described in this embodiment has a raised portion 2-6-1, and the upper surface of the lower binder ring 2-7 has a groove 2-7-1, The raised portion 2-6-1 and the groove 2-7-1 are vertically opposite to each other, and the raised portion 2-6-1 coincides with the groove 2-7-1.

[0044] Other composition and connection methods are the same as those in Embodiment 2.

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Abstract

The invention provides a test device and test method for platform formation performance under an ultralow temperature, and relates to the technical field of metal plate performance test. In order to solve the problem that an existing test device cannot be used for acquiring deformation information and mechanical property of a metal plate under the ultralow temperature and a complicated stress state, the test device comprises an ultralow temperature cooling system, a deformation test system, a heat preservation box, a cooling agent recycling device, an exhaust device, an on-line acquisition system and a computer control system, wherein the heat preservation box is used for preserving heat, the exhaust device is used for sucking mist in the heat preservation box out of the box via an exhausthole, the cooling agent recycling device is used for recycling a remaining cooling agent via a liquid discharging hole after test, the ultralow temperature cooling system is used for providing different test low temperatures required by the metal plate via a liquid inlet hole, the deformation test system is used for fixing the metal plate and performing complicated stress test on the metal plateby the plate formation device, and the on-line acquisition system and the computer control system are used for monitoring in real time and recording a test parameter. The test device is used for performing performance test on the metal plate.

Description

technical field [0001] The invention relates to the technical field of testing the mechanical properties of metal plates, in particular to a testing device and a testing method for the mechanical forming properties of plates under ultra-low temperature environments and complex stress conditions. Background technique [0002] Structural materials such as aluminum and aluminum alloys, copper and copper alloys, titanium and titanium alloys, and austenitic stainless steel have special ultra-low temperature properties, and are widely used in the manufacture of low-temperature pressure vessels, low-temperature storage tanks, pipe fittings, valves and other industrial products In aerospace industry, high energy physics, superconducting technology and nuclear industry and other fields. Such products are usually served under complex stress conditions and ultra-low temperature environments, and the low-temperature mechanical properties under complex stress conditions determine the ser...

Claims

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Application Information

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IPC IPC(8): G01N3/04G01N3/00
CPCG01N3/00G01N3/04G01N2203/0026G01N2203/0075G01N2203/0228G01N2203/0282G01N2203/04
Inventor 刘伟苑世剑
Owner HARBIN INST OF TECH
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