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Method for cutting large polycrystal ingot

A cutting method and technology of crystal square, applied in the field of cutting process of polycrystalline large ingot, can solve the problems of incomplete surface of mortar flowing square ingot, uneven surface of polycrystalline square ingot, etc., to improve product quality and consistency of size and specification improved effect

Inactive Publication Date: 2012-08-08
江苏金晖光伏有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the impurity requirements of the ingot casting workshop, there are impurities on the surface of the polycrystalline square ingot, which makes the surface of the polycrystalline square ingot uneven and makes the surface of the mortar flowing square ingot not comprehensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] Production operation steps:

[0012] 1. Put three parallel slings with a bearing capacity of 3 tons on the workpiece plate.

[0013] 2. Use the gantry crane and elevator device to lift a polycrystalline square ingot and place it on all the belts on the workpiece plate.

[0014] 3. On the same side of the three slings, the gantry crane is used to lift the slings upwards evenly and simultaneously to turn the polycrystalline ingot to the other side.

[0015] 4. Pull out the sling from the workpiece plate.

[0016] 5. Cut a polycrystalline square ingot into 25 columnar polycrystalline silicon rods with a square section.

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PUM

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Abstract

The invention discloses a method for cutting a large polycrystal ingot and relates to a cutting process for a large polycrystal ingot. According to the cutting method, a polycrystal square ingot is turned over and fixed on a workpiece plate by facing the bottom of the polycrystal square ingot downwards, and then the polycrystal square ingot is cut, so that when the large square ingot is cut into small square ingots, mortar is distributed on the whole polycrystal square ingot, and the consistency of specifications of the cut small square ingots can be guaranteed so as to meet the requirement on further improving the product quality.

Description

technical field [0001] The invention relates to the cutting technology of polycrystalline ingot. Background technique [0002] In order to divide the formed polycrystalline square ingot into several cylindrical polycrystalline silicon rods with square cross-sections, the production process in the cutting workshop of polycrystalline large ingots mostly directly sticks the polycrystalline ingot to the workpiece plate, and then puts it on the cutting machine to divide directly. . Due to the impurity removal requirements of the ingot workshop, there are impurities on the surface of the polycrystalline square ingot, which makes the surface of the polycrystalline square ingot uneven and makes the surface of the mortar flowing square ingot not comprehensive. In the wire-cutting process, the mortar plays a leading role in cutting, and the wire is an auxiliary role. The specifications of cutting small square ingots are different. Use a semi-automatic turning device to turn the poly...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B28D5/00
Inventor 王成祥
Owner 江苏金晖光伏有限公司