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A kind of production method of zn/cu-ag/cu-au composite coated steel strip for photoelectric material

A technology of composite coating and production method, which is applied in metal material coating technology, coating, superimposed layer coating, etc., can solve the problems of poor stability of coating, insufficient processing and forming performance and welding performance, etc., and achieve strong adhesion, Good welding and processing performance, and the effect of improving surface properties

Active Publication Date: 2017-12-29
武汉钢铁有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

It has the following disadvantages: one is that the coating is based on Cu, and because Cu is prone to oxidation, the stability of the coating is poor.
Although the product has good surface properties, electrical conductivity, and thermal conductivity, since the Au-Sn binary alloy is composed of many brittle and hard intermediate phases, when preparing small-sized optoelectronic materials such as CPU chips and LED light sources, the processing and molding of the product Insufficient performance and welding performance

Method used

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  • A kind of production method of zn/cu-ag/cu-au composite coated steel strip for photoelectric material
  • A kind of production method of zn/cu-ag/cu-au composite coated steel strip for photoelectric material
  • A kind of production method of zn/cu-ag/cu-au composite coated steel strip for photoelectric material

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Embodiment Construction

[0025] The present invention is described in detail below:

[0026] Table 1 is the cold rolling and strip-making process parameter of each embodiment of the present invention and comparative example;

[0027] Table 2 is a product performance list of each embodiment of the present invention and comparative examples.

[0028] Each embodiment of the present invention is produced according to the following processes:

[0029] A kind of production method of Zn / Cu-Ag / Cu-Au composite coating steel strip for photoelectric material, its step:

[0030] 1) Using 08Al cold-rolled steel plate as raw material, carry out 7 or 8 passes of cold-rolled rolling, and the total cold-rolled reduction rate is 87-95%;

[0031] 2) The cold-rolled raw materials are uncoiled, slitting, and deburred after conventional degreasing;

[0032] 3) Carry out hot-dip Zn, the galvanizing temperature is 400 ~ 450 ° C;

[0033] 4) Conduct thermal spraying of Cu-Ag, the weight ratio of Cu and Ag is 1:2~3; the pa...

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Abstract

A production method of a Zn / Cu-Ag / Cu-Au composite coating steel band for a photoelectric material comprises the following steps: using a 08Al cold-rolled steel sheet as a raw material and carrying out cold rolling; after conventional degreasing, carrying out uncoiling, splitting and deburring; hot-dipping Zn; thermally spraying Cu-Ag; carrying out primary annealing at a pure nitrogen protective atmosphere; thermally spraying Cu-Au; carrying out secondary annealing at a pure nitrogen protective atmosphere; and air-cooling to a room temperature and coiling. The tensile strength is 250-300MPa, and the elongation percent is 42-48%. One Zn / Cu-Ag / Cu-Au composite coating is generated on the surface. After the Zn / Cu-Ag / Cu-Au composite coating steel band is placed under an indoor conventional atmospheric condition for 960 days, the gloss loss rate of the coating is not larger than 0.3%, and the surface corroded area is not larger than 0.3%. The product has excellent electricity and heat conductivity. After the Zn / Cu-Ag / Cu-Au composite coating steel band is kept at 300-350 DEG C for 960 days, the surface oxidized area is not larger than 0.2%, and the hardness variation rate is not larger than 0.2%. The product also has excellent welding and machining performance.

Description

technical field [0001] The invention relates to a production method of a steel strip, in particular to a production method of a Zn / Cu-Ag / Cu-Au composite coated steel strip for photoelectric materials. Background technique [0002] In recent years, with the rapid development of electronic information technology and material processing technology, ultra-thin coated steel strips are increasingly used in the preparation of precision semiconductors, electronic chips, IC cards, potentiometers, resistance meters, ammeters, rectifiers and LED light source and other products. [0003] At present, the production of ultra-thin coated steel strips for photoelectric materials is mainly to continuously layer-plate single metals such as Cu, Ni, Ag or Au on the surface of cold-rolled steel strips to form Cu / Ni / Ag or Cu / Ni / Au composites. plating. It has the following disadvantages: one is that the coating is based on Cu, and because Cu is prone to oxidation, the stability of the coating is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C23C28/02
Inventor 黄菲陶军晖匡伟何振华吴远东
Owner 武汉钢铁有限公司
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