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Device for preparing thin-strip resilience body and application thereof

A technology for preparing devices and projectiles, which is applied in the field of testing, can solve the problems that manufacturers and users have no way to test, and achieve the effects of fast measurement work, cost saving, and easy mastery

Inactive Publication Date: 2013-07-24
刘颖绚
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But how to identify the soft and hard of the interconnection belt? General manufacturers and users have no way to detect

Method used

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  • Device for preparing thin-strip resilience body and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Such as figure 1 As shown in the figure, 1 is the forming wheel, and 3 is the forming wheel support bar. The forming wheel support bar is installed on the forming wheel. There is a forming guide rail 6 under the forming wheel side. The inner cavity of the forming guide rail is U-shaped and has a C dimension. The outer diameter of the forming wheel is slightly larger than C, and there is a triangular wedging block 5 and a wedging screw 4 on the left side of the forming guide rail. Through the wedging block 5 and wedging screw 4, the tested belt 2 can be pressed against one end of the forming guide rail 6 .

[0015] A tin-plated copper strip with a specification of 0.2×1.6mm is selected as the strip 2 to be tested. The copper base material is T1Cu with a purity of 99.95% and a thickness of 0.153mm. Both surfaces of the thin strip are plated with Sn alloy solder. according to figure 1 Pull and press the forming wheel support rod (3) in the direction indicated by th...

Embodiment 2

[0017] The situation of embodiment 1 is basically the same, except that the copper substrate grade is T2 (999% purity), and the annealed strip of copper

[0018] Components are the same as T1, other conditions are also the same as Example 1, and the α angle of the punched-out tested strip 2 becomes 20o.

[0019] The application of the present invention on the tin-coated copper strip on the photovoltaic cell board is of great significance! The supplier of tin-coated copper strip can mark the springback angle α value, and the application company can also use this device to test its softness and hardness. It is no longer necessary to scrape off the coating and then use a hardness tester to identify soft and hard. That is to say, the larger the rebound angle α value of the tin-coated copper strip, the harder it is, and the higher the debris rate in the process of welding silicon cells, and vice versa.

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Abstract

The invention relates to the field of testing technology, and particularly relates to hardness testing technologies and devices. A device for preparing a thin-strip resilience body is characterized in that the device has a forming wheel (1), wherein the forming wheel (1) is provided with a forming wheel support rod (3), a forming guide rail (6) is arranged below a position beside the forming wheel (1), an inner cavity of the forming guide rail (6) is a U-shaped one and has a dimension C, the outer diameter of the forming wheel (1) is slightly greater than C, the left side of the forming guiderail (6) is provided with a triangular wedge block (5) and a wedge screw (4), and a measured strip (2) can be tightly pressed against one end of the forming guide rail (6) by the wedge block (5) and the wedge screw (4). The device disclosed by the invention can be used for testing the hardiness of materials, and has the advantages of labor saving, time saving and investment saving.

Description

technical field [0001] The invention relates to the technical field of testing, in particular to hardness testing technology and equipment. Background technique [0002] In the prior art, hardness testers are mainly used to measure the hardness of materials, including Brinell hardness testers and Vickers hardness testers. Measuring the hardness of materials with a hardness tester is complex and expensive. [0003] In addition, for the interconnection strips used in photovoltaic panels (interconnection strips in tin-coated copper strips), the surface of the copper strips is very soft when tin alloy is coated, so there is no need to measure the softness and hardness, but the hardness of the core copper must be measured. The tin alloy coating had to be removed first, a laborious and time-consuming process that also required chemical expertise. Due to the high hardness of the interconnection strip, the fragmentation rate of the silicon cell is large during welding, so manufact...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/62G01N3/40
Inventor 刘颖绚刘雅洲李志平刘璐刘艳绚
Owner 刘颖绚
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