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Grid performance testing method

A test method and grid technology, applied in the direction of using stable tension/pressure to test material strength, measuring device, strength characteristics, etc., can solve the problem of inappropriate size, inaccurate results, and uneven force on the ribs on the grid and other problems, to achieve the effect of uniform force and accurate test results

Active Publication Date: 2020-09-18
CHAOWEI POWER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The laboratory often tests the tensile strength, creep resistance and other properties of grids with different shapes. At present, the tensile strength tester used in the laboratory has its own tooling fixture, and the size of the fixture has been fixed, so it is not suitable for testing the plate. The size of the grid is not suitable, the clamp cannot clamp one end of the grid in a balanced and stable manner, and the force on the ribs on the grid is not uniform, resulting in inaccurate results

Method used

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0013] Such as figure 1 , figure 2 In the shown embodiment, the test device for grid performance includes a jig 1 and a splint 2 . The grid is fixed by using the splint 2 , a clamp groove 16 is arranged on the clamp 1 , and the clamp 2 is arranged in the clamp groove 16 . The splint 2 includes a movable splint 21 and a static splint 22 , wherein the static splint 22 is fixedly connected to the inner wall of the fixture 1 . An installation seat 17 is also provided at the bottom of the fixture 1 , and the fixture 1 is fixed on the tester by using the installation seat 17 .

[0014] Two guide rails 15 are inserted on the fixture 1 , and the guide rails 15 pass through the fixture groove 16 . Simultaneously, guide rail 15 holes are arranged on both sides on the movable splint 21 , two guide rails 15 are inserted on the movable splint 21 , and ...

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Abstract

The invention discloses a grid performance testing method, which comprises a grid performance testing device, and comprises the following steps of: 1) moving a hinge rod (111) upwards, moving a movable clamping plate (21), and placing a grid in a mounting groove (23); (2) adjusting a movable clamping plate (21), fixing the grid by utilizing the movable clamping plate (21) and a static clamping plate (22), and meanwhile, rotating and tightening a fixing piece (141) to enable the fixing piece (141) to inwards move to be in close contact with the movable clamping plate (21); (3) loosensing the hinge rod (111), enabling the hinge rod (111) to move downwards under the action of gravity, enabling the limiting rod (112) to move inwards to make contact with the grids, and (4) subjecting the gridsto tensile test. The testing method is suitable for testing the grids of different sizes, the grids are fixed, stress is uniform, and the testing result is accurate.

Description

technical field [0001] The invention relates to a method for testing the performance of a grid. Background technique [0002] The grid is the main component of the lead-acid battery. It is the current collector skeleton of the electrode, which plays the role of conducting, collecting and making the current evenly distributed. At the same time, it supports the active material and is the carrier of the active material. When the lead-acid battery is charged and discharged, the density of the active material will change. That is, the density of the active material is different before and after conversion, so when discharging, the molar volume of the active material will increase, and the plate will expand and deform, while when charging, the volume of the active material will decrease, that is, the plate will shrink. Therefore, the grid’s The support can prevent the active material from falling off due to expansion and contraction of the plate. Lead alloys used as battery grid...

Claims

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Application Information

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IPC IPC(8): G01N3/08G01N3/04
CPCG01N3/08G01N3/04G01N2203/0003G01N2203/0017G01N2203/0282G01N2203/04G01N2203/0676Y02E60/10
Inventor 杨云珍王新成
Owner CHAOWEI POWER CO LTD