Splicing device and method of crystal bars with equal length or square crystal ingots with equal length

Abstract

The invention relates to a splicing device and method of crystal bars with equal length or square crystal ingots with equal length. The splicing device contains a splicing mechanism and a matched sucking tool; the set screws of a bearing centring barrel are used to fix constant diameter short crystal bars or equilateral square ingots; a concentricity-determining device is used to ensure that the concentricity of the four crystal bars or square ingots which are overlaid; the four crystallization symmetric ridges of the four crystal bars are aligned from bottom to top or all the angles of the four square ingots are aligned from bottom to top; a straight line is drawn on the outer surface of each short crystal bar or square ingot to be used as secondary butt-joint line, the sucking tool is used to lift the second, third and four crystal bars or square ingots in turn, adhesive is coated, aligning is performed according to the secondary butt-joint lines, and the crystal bars or square ingots are fixed and spliced. By adopting the device and method of the invention, the splicing time is short, the sliced crystal bar or ingot has good concentricity, the four crystallization symmetric ridges or the angles of the square ingots are easy to align and the standardized and mass production is easy to realize.

Description

technical field [0001] The present invention relates to a splicing equipment and process for equal-length wafer rods or equal-cubic crystal ingots, in particular to a splicing device and method for equal-length wafer rods or equal-cubular crystal ingots. The splicing device is used for: splicing silicon monocrystalline ultra-short round rods with equal diameters for solar energy into wafer rods with equal lengths, or splicing square rectangular polycrystalline silicon ultra-short ingots for solar energy into equal rectangular crystal ingots. The silicon single crystal equal-diameter ultra-short round rod can be a silicon single crystal equal-diameter ultra-short round rod with a diameter of 6 inches or 8 inches for solar energy, and the square rectangular polycrystalline silicon ultra-short ingot can be a 125* 125 or 156*156 square rectangular polysilicon ultra-short ingot. The length of the spliced ​​equal length wafer bar or equal rectangular crystal ingot is 320 mm or 410 ...

AI Technical Summary

Problems solved by technology

[0009] First of all, it is time-consuming, low work efficiency and high operation error rate;

[0010] The second is the poor concentricity of the spliced ​​equal-length wafer rods or equal-rectangular crystal ingots, which causes the deviation of the crystal orientation to be greater than 3 to 4 degrees.

[0011] The third is as many as four equal-diameter short round rods (or equilateral square ingots) splicing, and the four crystal symmetrical ridges (square ingot four corners) are not easy to be aligned; it is not easy to standardize and scale production

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