Method for cutting off heads and tails for squarer

Abstract

The invention relates to a method for cutting off the heads and the tails for a squarer. The method includes the steps that firstly, crystal bricks are clamped; secondly, a line net is designed; and thirdly, after the crystal bricks are cut, finished crystal bricks are obtained. Special clamps for the crystal bricks are manufactured and the line net is designed on the squarer, so that the inclination distance of the end face of each finished crystal brick is reduced to 0.5 mm from 1.2 mm, the edge breaking length is controlled below 0.5 mm per ingot, and the squarer can be used for squaring crystal ingots, cutting off waste layers and removing the heads and the tails. By the adoption of the method, production cost is reduced, accuracy is improved, and the product use rate is increased.

Description

Technical field [0001] The invention relates to a method for truncating the head and tail of an open machine, and belongs to the field of solar photovoltaic silicon ingot prescription processing. Background technique [0002] Wire cutting technology is currently the most advanced silicon wafer processing technology in the world. Its principle is to use a high-speed moving steel wire to drive the cutting blade attached to the steel wire to rub hard and brittle materials such as silicon to achieve the purpose of cutting. . Compared with traditional saw blades, grinding wheel blades and internal circular cutting, wire cutting technology has the characteristics of high efficiency, high precision and low material damage. [0003] At present, all domestic silicon wafer cutting manufacturers use square-cutting machines for square-cutting, but from the perspective of equipment procurement costs, most manufacturers still use knife and saw equipment to cut the head and tail, while the exist...

AI Technical Summary

Problems solved by technology

[0003] At present, all silicon wafer cutting manufacturers in China use square cutting machines for square cutting, but considering the cost of equipment procurement, most manufacturers still use knife and saw equipment to cut off the head and tail, and the existing cutting machine is in the process of cutting the head and tail. There are edge chipping and end face beveling or concave-convex surface, etc. After improvement, there are still 0.8mm / ingot chipping and 1.2mm end face inclination, which cannot meet the market demand

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