Test method for compressing cold resistance coefficient of vulcanized rubber

A testing method and vulcanized rubber technology, applied in the direction of applying stable tension/pressure to test the strength of materials, etc., can solve the problems of potential safety hazards, low test efficiency, large test temperature fluctuations, etc., and achieve small test temperature fluctuation range and increase the number of instruments Utilization rate, effect of reducing labor intensity

Inactive Publication Date: 2019-03-29
SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Disadvantages of this test method: (1) The use of cryogenic bottles has poor heat preservation effect, slow cooling, and low test efficiency; (2) Adding refrigerant to cool down is not only costly, but also easily burns the operator, posing safety hazards; (3) The test temperature fluctuates greatly, and the temperature cannot be guaranteed during the test process, resulting in inaccurate test data and large dispersion of data

Method used

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  • Test method for compressing cold resistance coefficient of vulcanized rubber
  • Test method for compressing cold resistance coefficient of vulcanized rubber
  • Test method for compressing cold resistance coefficient of vulcanized rubber

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Embodiment Construction

[0023] Such as Figure 1-4 As shown, a test method for the compression cold resistance coefficient of vulcanized rubber uses the compression device and the measuring device of the compression cold resistance tester. Pad 4, pole 9 and sleeve 11, the measuring device includes dial indicator 1 and connecting rod 10; the compression device is placed on the low temperature tank 15 of the low temperature embrittlement testing machine through the bracket, and the test temperature is controlled by the low temperature embrittlement testing machine. The test is implemented by a compression device and a measuring device; the support includes a top plate 12 and four table legs 13, and the center of the top plate 12 is provided with a circular hole 14; specifically includes the following steps:

[0024] Step 1: Add heat transfer medium alcohol 16 into the alcohol filling port of the low-temperature tank of the low-temperature embrittlement testing machine, and the injection amount ensures ...

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Abstract

The invention belongs to the field of measurement and detection, and particularly relates to a test method for compressing cold resistance coefficient of vulcanized rubber. The technical scheme of theinvention is as follows: the method employs a compression device and a measuring device of a compression cold resistance tester, the compression device comprises a hand wheel, a frame, a pressure transmission rod, a pressure block, a platform, a heat insulation mat, a support rod and a sleeve, the measuring device comprises a dial indicator and a connecting rod; the compression device is placed on a low temperature tank of a low-temperature embrittlement testing machine through a bracket, the test temperature is controlled by the low-temperature embrittlement testing machine, and the test isimplemented by the compression device and the measuring device. The method provided by the invention uses machines for refrigeration, performs automatic cooling and temperature reduction, automatic heat preservation and mechanical temperature control, is small in range of test temperature fluctuation, small in data dispersion, more accurate in data and high in test efficiency, reduces labor intensity and avoid safety accidents.

Description

technical field [0001] The invention belongs to the field of measurement and detection, and in particular relates to a method for testing the compression cold resistance coefficient of vulcanized rubber. Background technique [0002] The current rubber compression cold resistance coefficient test method is "HG / T3866-2008 Determination of Vulcanized Rubber Compression Cold Resistance Coefficient", and the compression cold resistance tester is used to measure the rubber compression cold resistance coefficient. The test standard is to compress the sample to a certain height, then freeze it at a low temperature and measure the elastic recovery performance after the compression load is removed at this temperature. [0003] The test instrument is a compression cold resistance tester, including a thermos bottle, a compression device and a measuring device; figure 1 As shown, the compression device includes a hand wheel, a stand, a pressure transmission rod, a pressure block, a pla...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/18
CPCG01N3/18
Inventor 张丽娜南辉邢彬王景锋王会东
Owner SHENYANG LIMING AERO-ENGINE GROUP CORPORATION
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