Preparation device and application of thin tape elastic body

Abstract

The invention relates to the technical field of test, and particularly relates to a hardness test technology and equipment thereof. A manufacture device of a thin strip rebound body in the invention is characterized in that the device is provided with a U-shaped elastic piece (5), two legs at the lower end of the elastic piece (5) are provided with two guide wheels (1), an opening (C) is formed between the two guide wheels (1), a punch (3) is vertically arranged on the lower ends of the guide wheels (1), a supporting plate (4) is arranged at the lower end of the punch (3), and a thin strip to be tested (2) is located between the two guide wheels (1) and the punch (3); the width of the opening (C) is smaller than the thickness B of the punch (3), so that the thin strip to be tested (2) is clamped in the punching process so as to form a piece (2'); the upper end of the punch (3) is semicircular and has smooth surface, and the height H of the punch needs to meet a condition that the guide wheels (1) can be punched to the position of guide wheels (1') in an illustration, so that the guide wheels can be separated from the lower leg of the piece (2'). The manufacture device of the thin strip rebound body can be used for testing the harness of materials, and has the advantages of saving labor force, saving time and saving investment.

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 (interconnection strips in tin-coated copper strips) used in photovoltaic panels, 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...

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