CN103526143A - Production method of soft photovoltaic copper strip - Google Patents
Production method of soft photovoltaic copper strip Download PDFInfo
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- CN103526143A CN103526143A CN201310149365.6A CN201310149365A CN103526143A CN 103526143 A CN103526143 A CN 103526143A CN 201310149365 A CN201310149365 A CN 201310149365A CN 103526143 A CN103526143 A CN 103526143A
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Abstract
In order to solve the problem that the annealing process in an existing copper processing process is not very good and ensure a very low Vickers hardness index and a greater ductility, the invention provides a production method of a soft photovoltaic copper strip. The production method is characterized by comprising the following process flows: hot-rolling and milling as well as horizontal continuous casting and milling of a strip plate; blooming; trimming; finish rolling; annealing; finished product cutting; performance examination; and warehousing. Due to the adoption of the method, not only is the produced soft photovoltaic copper strip reliable in quality, but also the process flows are simple and easy to realize.
Description
Technical field
The present invention relates to copper strips production field, especially a kind of production method of soft state photovoltaic copper strips.
Background technology
Photovoltaic copper strips, for the manufacture of photovoltaic cell, is made conductive bus-bar.Require very thinly, there is very low hardness and higher electric conductivity, for reducing circuitry consumes, improve electrical efficiency, require to have good welding property simultaneously.Soft state photovoltaic copper strips performance requriements is as follows: state M state; Electric conductivity>=100%IACS; Vickers hardness hv≤50; Tensile strength Rm>=190 MPa; Elongation A
11.3 %>=30%.
Owing to need to being greater than the electric conductivity of 100%IACS, copper material has high conductivity and good weldability, is suitable for manufacturing photovoltaic copper strips, first selects oxygen free copper or high purity copper as base material.
But at present in the copper course of processing, soft state photovoltaic copper strips requires to have low-down Vickers' hardness index and larger unit elongation, general annealing process can not the fine performance that simultaneously guarantees the two, also to reach corresponding tensile strength index simultaneously, over-all properties exceeds normal ranges, thereby can not meet downstream client's demand.This becomes a difficult point of producing soft state photovoltaic copper strips.Therefore, must continue to find a kind of suitable method for annealing, be used for carrying out the production of photovoltaic copper strips.
Summary of the invention
In order to solve annealing process in the current copper course of processing, can not finely guarantee low-down Vickers' hardness index and larger unit elongation simultaneously, the invention provides a kind of production method of soft state photovoltaic copper strips, can guarantee the processing quality of product, and realize conveniently, technical process is simple.
The production method of described a kind of soft state photovoltaic copper strips, is characterized in that: the technical process of employing is: base → breaking down → trimming → finish rolling → annealing → finished product shearing → service check → warehouse-in is worn in hot rolling milling face and horizontal casting milling.
The production method of described a kind of soft state photovoltaic copper strips, is characterized in that: annealing process: finished products furnace temperature is set in more than 550 ~ 700 ℃; By selecting air-cushion type continuous annealing furnace or continous way annealing device, the band that is rolled down to finished product thickness is launched by unwinding device, in stove, pass into the nitrogen and hydrogen mixture protection strip surface containing 3 ~ 5% hydrogen, reduce strip surface oxidation; Copper strips travelling speed 50 ~ 90 m/min, rotation speed of fan 600 ~ 800r/min; After entering stokehold and opening ROLLING OIL that degreasing cleaning fluid carries strip surface and clean, band passes through annealing furnace district in individual layer flat continuously with steady speed, and process surface cleaning Passivation Treatment after annealing, by winding device again clot, then deliver to cutting operation, carry out finished product shearing.
The invention has the beneficial effects as follows: the soft state photovoltaic copper strips reliable in quality of not only producing, and also technical process is simple, easily realizes.
Embodiment
The technical process adopting when producing soft state photovoltaic copper strips is: base → breaking down → trimming → finish rolling → annealing → finished product shearing → service check → warehouse-in is worn in hot rolling milling face and horizontal casting milling.
Especially annealing flow process in, annealing process: finished products furnace temperature is set in more than 550 ~ 700 ℃; By selecting air-cushion type continuous annealing furnace or continous way annealing device, the band that is rolled down to finished product thickness is launched by unwinding device, in stove, pass into the nitrogen and hydrogen mixture protection strip surface containing 3 ~ 5% hydrogen, reduce strip surface oxidation; Copper strips travelling speed 50 ~ 90 m/min, rotation speed of fan 600 ~ 800r/min; After entering stokehold and opening ROLLING OIL that degreasing cleaning fluid carries strip surface and clean, band passes through annealing furnace district in individual layer flat continuously with steady speed, and process surface cleaning Passivation Treatment after annealing, by winding device again clot, then deliver to cutting operation, carry out finished product shearing.
Specific embodiment 1: a kind of soft state photovoltaic copper strips of specification, requires to be: thickness specification: 0.15mm thickness deviation: ± 0.005mm; State: M; Electric conductivity>=100%IACS; Vickers hardness hv≤50; Tensile strength Rm>=190 MPa; Elongation A
11.3 %>=30%.
First select oxygen free copper C10200 ingot casting, carry out normal split rolling method, final product thickness 0.15mm.
Annealing is carried out at 1# air-cushion type continuous annealing furnace.
In stove, temperature is 660 ℃, passes into containing 5.4% hydrogen (H in stove
2) nitrogen and hydrogen mixture protection strip surface, reduce strip surface oxidation.Copper strips travelling speed 55m/min, rotation speed of fan 750r/min.Enter stokehold and open the ROLLING OIL that degreasing cleaning fluid carries strip surface and clean, after annealing, carry out pickling, keep band surface cleaning light.
To finished product band, sampling detects performance: electric conductivity: 103%IACS; Vickers hardness hv: 47.6; Tensile strength Rm:201 MPa; Elongation A
11.3 %: 35%, meet contract requirement band performance.
Specific embodiment 2: a kind of soft state photovoltaic copper strips of specification, requires to be: thickness specification: 0.125mm; Thickness deviation: ± 0.005mm; State: M; Electric conductivity>=100%IACS; Vickers hardness hv≤50; Tensile strength Rm>=190 MPa; Elongation A
11.3 %:>=30%.
First select oxygen free copper C10200 ingot casting, carry out normal split rolling method, final product thickness 0.125mm.
Annealing is carried out at 1# air-cushion type continuous annealing furnace.
In stove, temperature 660 degree, pass into containing 5.5%H in stove
2nitrogen and hydrogen mixture protection strip surface, reduce strip surface oxidation.Copper strips travelling speed 60m/min, rotation speed of fan 680r/min.Enter stokehold and open the ROLLING OIL that degreasing fluid carries copper strip surface and clean, pickling after annealing, keeps band surface cleaning light.
The sampling of finished product band detects performance: electric conductivity: 103%IACS; Vickers hardness hv 48.6; Tensile strength Rm:240 MPa; Elongation A
11.3 %: 38%.Meet contract requirement band performance.
Specific embodiment 3: a kind of soft state photovoltaic copper strips of specification, requires to be: thickness specification: 0.15mm; Thickness deviation: ± 0.005mm; State: M; Electric conductivity>=100%IACS; Vickers hardness hv≤50; Tensile strength Rm>=190MPa; Elongation A
11.3 %>=30%.
First select oxygen free copper C10200 ingot casting, carry out normal split rolling method, final product thickness 0.15mm.
Annealing is carried out at 2# air-cushion type continuous annealing furnace.
In stove, temperature 670 degree, pass into 5.2%H in stove
2nitrogen and hydrogen mixture protection strip surface, reduce strip surface oxidation.Tape running speed 90m/min, rotation speed of fan 700r/min.Enter stokehold and open the ROLLING OIL of carrying with degreasing fluid cleaning copper strip surface, pickling after annealing, keeps band surface cleaning light.
The sampling of finished product band detects performance: electric conductivity: 105%IACS; Vickers hardness hv 47.6; Tensile strength Rm 220 MPa; Elongation A
11.3 %36%.Meet contract requirement band performance.
Claims (2)
1. a production method for soft state photovoltaic copper strips, is characterized in that: the technical process of employing is: base → breaking down → trimming → finish rolling → annealing → finished product shearing → service check → warehouse-in is worn in hot rolling milling face and horizontal casting milling.
2. the production method of a kind of soft state photovoltaic copper strips according to claim 1, is characterized in that: annealing process: finished products furnace temperature is set in more than 550 ~ 700 ℃; By selecting air-cushion type continuous annealing furnace or continous way annealing device, the band that is rolled down to finished product thickness is launched by unwinding device, in stove, pass into the nitrogen and hydrogen mixture protection strip surface containing 3 ~ 5% hydrogen, reduce strip surface oxidation; Copper strips travelling speed 50 ~ 90 m/min, rotation speed of fan 600 ~ 800r/min; After entering stokehold and opening ROLLING OIL that degreasing cleaning fluid carries strip surface and clean, band passes through annealing furnace district in individual layer flat continuously with steady speed, and process surface cleaning Passivation Treatment after annealing, by winding device again clot, then deliver to cutting operation, carry out finished product shearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310149365.6A CN103526143A (en) | 2013-04-26 | 2013-04-26 | Production method of soft photovoltaic copper strip |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310149365.6A CN103526143A (en) | 2013-04-26 | 2013-04-26 | Production method of soft photovoltaic copper strip |
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| CN103526143A true CN103526143A (en) | 2014-01-22 |
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ID=49928486
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| CN201310149365.6A Withdrawn CN103526143A (en) | 2013-04-26 | 2013-04-26 | Production method of soft photovoltaic copper strip |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105088258A (en) * | 2015-09-16 | 2015-11-25 | 富威科技（吴江）有限公司 | Soft copper foil cleaning production line |
| CN112296117A (en) * | 2020-08-29 | 2021-02-02 | 安徽楚江科技新材料股份有限公司 | Red copper strip rolling process |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658452A (en) * | 2011-11-17 | 2012-09-12 | 中铝洛阳铜业有限公司 | Processing method of copper strip used for copper steel composites |
-
2013
- 2013-04-26 CN CN201310149365.6A patent/CN103526143A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102658452A (en) * | 2011-11-17 | 2012-09-12 | 中铝洛阳铜业有限公司 | Processing method of copper strip used for copper steel composites |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105088258A (en) * | 2015-09-16 | 2015-11-25 | 富威科技（吴江）有限公司 | Soft copper foil cleaning production line |
| CN112296117A (en) * | 2020-08-29 | 2021-02-02 | 安徽楚江科技新材料股份有限公司 | Red copper strip rolling process |
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Application publication date: 20140122 |