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Diamond abrasive belt, device for fast grinding monocrystal silicon rod outer circle and method for fast grinding monocrystal silicon rod outer circle

A technology of diamond sand and single crystal silicon rod, applied in the field of abrasive tool grinding, can solve problems such as excessively hard diamond grinding wheel, and achieve the effect of improving life, good finish and ensuring consistency

Inactive Publication Date: 2019-10-25
王占锋 +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a diamond abrasive belt to solve the technical problem of the diamond abrasive wheel being too hard

Method used

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  • Diamond abrasive belt, device for fast grinding monocrystal silicon rod outer circle and method for fast grinding monocrystal silicon rod outer circle
  • Diamond abrasive belt, device for fast grinding monocrystal silicon rod outer circle and method for fast grinding monocrystal silicon rod outer circle
  • Diamond abrasive belt, device for fast grinding monocrystal silicon rod outer circle and method for fast grinding monocrystal silicon rod outer circle

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Experimental program
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Effect test

Embodiment 1

[0043] A diamond abrasive belt, comprising the following manufacturing steps:

[0044] Step 1, making a mold that engraves blind holes arranged in an orderly manner, and the hole depth and diameter of all blind holes are the same;

[0045] Step 2, mixing the diamond powder and the resin bond evenly into the blind hole of the mould;

[0046] Step 3, the mold in which diamond powder and resin binder are added in step 2 is attached to the fiber base cloth 1, pressurized and heated, and demoulded.

[0047] A device for quickly grinding the outer circle of a single crystal silicon rod, comprising a frame 7, on which more than one diamond abrasive belt produced by the above-mentioned manufacturing method is arranged, the diamond abrasive belt is ring-shaped and driven by a driving mechanism 13 to rotate at a high speed; The frame 7 is also provided with an inner guide wheel 6 and an outer guide wheel 4 for supporting the single crystal silicon rod and moving the single crystal sili...

Embodiment 2

[0054] Such as Figure 1-3 Shown, a kind of diamond abrasive belt is made through the following steps:

[0055]Step 1, making a steel mold 9 engraving orderly arranged blind holes, all the blind holes 10 have the same size, and the blind holes 10 have a depth of 1 mm, a length of 3 mm, and a width of 1.5 mm.

[0056] In step 2, the diamond powder and the resin bond are evenly mixed and put into the blind hole 10 of the steel mold 9 .

[0057] Step 3, the steel mold 9 with diamond powder and resin binder added in step 2 is attached to the fiber base cloth 1 with a thickness of 1.5mm, and kept at a temperature of 130°C and a pressure of 10MPa for 20 minutes, and the thickness of the demoulded diamond is about 1.0mm diamond abrasive belt 5.

[0058] Such as Figure 4 and Figure 5 As shown, a device for quickly grinding the outer circle of a single crystal silicon rod includes a frame 7, and the frame 7 is provided with three diamond abrasive belts 5 made by the above-mention...

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Abstract

The invention discloses a diamond abrasive belt. The diamond abrasive belt includes the following manufacturing steps that firstly, a mold engraved with orderly arranged blind holes is manufactured; and the blind holes are the same in size; secondly, a diamond powder material and a resin binding agent are uniformly mixed to be thrown into the blind holes of the mold; thirdly, the mold in which thediamond powder material and the resin binding agent are added in is attached to fiber base cloth for pressurizing and temperature rising, and demolding and forming are performed. The invention further discloses a device for fast grinding a monocrystal silicon rod outer circle by using the diamond abrasive belt. A rack is included, and provided with one or more diamond abrasive belt, and each diamond abrasive belt is annular and rotates at a high speed; the rack is further provided with an inner guiding wheel and an outer guiding wheel supporting a monocrystal silicon rod and making the monocrystal silicon rod move in the axial direction; and the inner guiding wheel and the outer guiding wheel are both rotationally connected with the rack. The invention further discloses a method for fastgrinding the monocrystal silicon rod outer circle by using the device, using the diamond abrasive belt, for fast grinding the monocrystal silicon rod outer circle.

Description

technical field [0001] The invention relates to the technical field of abrasive grinding, in particular to a diamond abrasive belt, a device for quickly grinding the outer circle of a single crystal silicon rod, and a method for rapidly grinding the outer circle of a single crystal silicon rod. Background technique [0002] Monocrystalline silicon material is the most important raw material for photovoltaic power generation and upstream of integrated circuit chips. In recent years, with the rapid expansion of photovoltaic industry and integrated circuit industry, the production capacity of monocrystalline silicon has continued to increase. Common methods for preparing single crystal silicon include methods such as the Czochralski method and zone melting method, and the single crystal silicon prepared by this method is all formed into a cylindrical ingot. The whole monocrystalline silicon ingot prepared needs to be cut first, and the overlong ingot is cut into a small section...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B24D11/00B24B21/02B24B21/18B24B21/20B24B41/06B24B47/12B24B1/00
CPCB24D11/00B24D11/001B24B21/02B24B21/008B24B21/18B24B21/20B24B41/067B24B47/12B24B1/00
Inventor 王占锋安建立冼国强范维
Owner 王占锋
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