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Repairing method for broken wire of electroplated consolidation abrasive wire

A repair method and a technology of consolidating abrasives, which are applied in the direction of grinding devices, grinding/polishing equipment, and devices for coating liquid on the surface, etc., which can solve problems such as long time, reduced welding strength, and difficult operation, and achieve operation The effect of simplicity, high tensile strength and simple process

Active Publication Date: 2019-03-29
CSI CELLS CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The specific disadvantages of this method are as follows: on the one hand, it takes a long time to configure the solution to clean the thread, and the economic value is low; on the other hand, the solution itself is highly corrosive, and the operation is difficult. After cleaning, the thread has acidic residues and the welding strength is reduced; On the one hand, after the broken wire is repaired, it needs to be friction-cut with the silicon rod in an alkaline cutting fluid environment, and it is easy to crack again due to high temperature and corrosion

Method used

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  • Repairing method for broken wire of electroplated consolidation abrasive wire
  • Repairing method for broken wire of electroplated consolidation abrasive wire
  • Repairing method for broken wire of electroplated consolidation abrasive wire

Examples

Experimental program
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Effect test

Embodiment 1

[0034] In this embodiment, the consolidated abrasive wire after the broken wire is repaired. The repair method is: clean the fracture of the consolidated abrasive wire, weld it, and use a dropper with a diameter of 0.2 mm to include cyanoacrylate compounds. The reinforcement material is dropped on the solder joints for coating, the coating length is 1.4 mm, and the coating thickness is 12 μm, and the cyanoacrylate compound is cyanoacrylate.

[0035] Observe the coated part of the reinforcement material on the repaired bonded abrasive wire, record the curing time, and observe whether there is expansion phenomenon; conduct a tension test on the repaired bonded abrasive wire, the test method is: use the German Wei Xun laser welding machine to automatically Test with a force measuring system; put the repaired bonded abrasive line into production, use it for 2 months, and observe whether there is any jumping or disconnection. Keeping the conditions of the repair method the same, a ...

Embodiment 2

[0038] In this embodiment, the bonded abrasive wire after the broken wire is repaired. The repair method is: clean the fracture of the bonded abrasive wire, weld it, and use a dropper with a diameter of 0.1mm to remove the cyanoacrylate compound. The reinforcing material is dropped on the solder joints for coating, the coating length is 1.8 mm, and the coating thickness is 20 μm, and the cyanoacrylate compound is ethyl cyanoacrylate.

[0039]Observe the coated part of the reinforcement material on the repaired bonded abrasive wire, record the curing time, and observe whether there is expansion phenomenon; conduct a tension test on the repaired bonded abrasive wire, the test method is: use the German Wei Xun laser welding machine to automatically Test with a force measuring system; put the repaired bonded abrasive line into production, use it for 2 months, and observe whether there is any jumping or disconnection. Keeping the conditions of the repair method the same, a total of...

Embodiment 3

[0041] In this embodiment, the bonded abrasive wire after the broken wire is repaired. The repair method is: clean the fracture of the bonded abrasive wire, weld it, and use a dropper with a diameter of 0.28mm to remove the cyanoacrylate compound. The reinforcement material is dropped on the solder joints for coating, the coating length is 0.8 mm, and the coating thickness is 25 μm, and the cyanoacrylate compound is alkoxyethyl cyanoacrylate.

[0042] Observe the coated part of the reinforcement material on the repaired bonded abrasive wire, record the curing time, and observe whether there is expansion phenomenon; conduct a tension test on the repaired bonded abrasive wire, the test method is: use the German Wei Xun laser welding machine to automatically Test with a force measuring system; put the repaired bonded abrasive line into production, use it for 2 months, and observe whether there is any jumping or disconnection. Keeping the conditions of the repair method the same, ...

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Abstract

The invention relates to a repairing method for a broken wire of an electroplated consolidation abrasive wire. The repairing method comprises the following steps that two separating ends at a breakingposition of the consolidation abrasive wire are welded into a whole; and a reinforced area corresponding to the welded breaking position is coated with a reinforcing material layer, wherein the reinforcing material layer comprises a cyanoacrylate compound, and the reinforcing area is an area which extends from the breaking position to the two ends in the length direction of the consolidation abrasive wire. According to the method, a reinforcing material containing the cyanoacrylate compound is adopted for protecting the welding position, the phenomenon that the solidified reinforcing materialgenerates obvious expansion, so that the wrapping thickness is increased is avoided; and the repairing method is simple in process, and easy and convenient in operation, so that the breaking and jumping of repaired consolidation abrasive wire do not occur easily under the operation conditions of alkaline, high temperature and high-speed friction, and the tensile strength is large.

Description

technical field [0001] The invention relates to the technical field of treatment of broken wires of electroplating consolidated abrasive wires, in particular to a method for repairing broken wires of electroplated consolidated abrasive wires. Background technique [0002] Fixed abrasive wire cutting of crystalline silicon is a new type of silicon wafer processing technology developed in recent years. Compared with sand wire cutting, it has a significant cost advantage, mainly in terms of high cutting productivity, less environmental pollution, and less loss of silicon material in sawing seams. Affected by the bonded abrasive line itself and various external factors, wire breakage will occur during processing, and once a wire breakage accident occurs, it will lead to a relatively serious loss of silicon wafers and bring greater economic losses to the enterprise . It has always been a difficult point in the industry to save the loss after the wire breaks in the bonded abrasi...

Claims

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Application Information

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IPC IPC(8): B24D18/00B05D7/24B05D3/00
CPCB05D3/002B05D7/24B24D18/009
Inventor 康郝鹏王亚飞赵家森岳毅博
Owner CSI CELLS CO LTD