Belt conveyer for tunnel furnace for manufacturing solar cell and method for manufacturing the same

A technology of solar cells and manufacturing methods, applied in the directions of furnaces, furnace types, lighting and heating equipment, etc., can solve the problems of non-metallic flint tunnel furnace conveyor belts that cannot withstand high sintering temperature, solar cell pollution, etc.

Inactive Publication Date: 2007-02-28
SEMICON MFG INT (SHANGHAI) CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the pollution of the solar cells caused by the existing nickel-chromium alloy conveyor belt, and the disadvantage that the non-metallic furnace conveyor belt cannot withstand the high sintering temperature of 900°C-1000°C, the present invention is proposed

Method used

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  • Belt conveyer for tunnel furnace for manufacturing solar cell and method for manufacturing the same

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Embodiment 1

[0017] Fig. 1 is according to an embodiment of the present invention manufactures the sectional view of the flint road furnace that solar cell is used, coating ceramics (Al 2 o 3 )layer.

[0018] Referring to Fig. 1, according to technical scheme of the present invention, provide the flint road furnace conveyer belt that manufactures solar cell, it is made of " nickel-chromium alloy belt ", and a plurality of supporting columns that " nickel-chromium alloy belt " is set on the conveyer belt surface, in The surface of the support column is coated with a ceramic layer (ie Al 2 o 3 layer). Al used 2 o 3 The purity of ceramic powder is 99.99%; the density is 3.98g / cm 3 ; Hardness is 9 (Mohs); Melting point is 2040°C.

Embodiment 2

[0020] According to another technical scheme of the present invention, provide the manufacture method of the flint furnace conveyer belt that manufactures solar cell, comprise following process step:

[0021] Step 1. Stamping "nickel-chromium alloy strip" to form a plurality of support columns protruding upwards on its front side;

[0022] In step 2, the top surfaces of multiple support columns are coated with a ceramic layer using plasma micro-arc ceramic layer technology. With a purity of 99.99% and a density of 3.98g / cm 3 , hardness of 9 (Mohs), melting point of 2040 ° C ceramic powder as raw material.

[0023] "Nichrome strip" processed through steps 1 and 2 to melt the bonding material to Al 2 o 3 powder and "Nichrome Ribbon", the Al 2 o 3 Powder and " nickel-chromium alloy belt " are bonded together, constitute the flint road furnace conveyor belt of the present invention.

[0024] The above has described the flint furnace conveyor belt for manufacturing solar cell...

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Abstract

The invention relates to a tunnel furnace transmission belt used to produce solar-energy battery and relative production, wherein said tunnel furnace transmission belt is made from nickel chromium alloy; and it is characterized in that: the upper surface of belt has several support posts made from nickel chromium alloy, while the top surface of support post is coated with ceramic layer (Al2O3). The invention will in the production of solar-energy battery not contact the silicon crystal, to avoid polluting the silicon crystal, and it can resist the sinter temperature at 900-1000Deg. C.

Description

technical field [0001] The invention relates to a conveyor belt for a flint furnace, in particular to a conveyor belt for a flint furnace for manufacturing solar cells and a manufacturing method thereof. Background technique [0002] In the electronic component manufacturing industry, the sintering furnace is usually used as a sintering tool, and the sintering furnace conveyor belt conveys the components to be sintered in the sintering furnace. In the solar cell manufacturing process, the silicon wafers to be processed are conveyed in the furnace by the conveyor belt of the furnace to dry and sinter the slurry printed by the screen printing machine for the manufacture of electrodes, or for the phosphorus source of phosphorus diffusion ( P 2 o 5 ), forming conductive electrodes or N-wells on the surface of the P-type silicon chip to form a PN junction. [0003] The making material of existing flint road furnace conveyer belt is usually " nickel-chromium alloy belt ", promp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F27B9/30
Inventor 陈卓明苏晓平江彤
Owner SEMICON MFG INT (SHANGHAI) CORP
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