CN102367505A - Method for increasing surface brightness of cover furnace annealing strip - Google Patents
Method for increasing surface brightness of cover furnace annealing strip Download PDFInfo
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- CN102367505A CN102367505A CN2011103551500A CN201110355150A CN102367505A CN 102367505 A CN102367505 A CN 102367505A CN 2011103551500 A CN2011103551500 A CN 2011103551500A CN 201110355150 A CN201110355150 A CN 201110355150A CN 102367505 A CN102367505 A CN 102367505A
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Abstract
The invention discloses a method for increasing the surface brightness of a cover furnace annealing strip. The method comprises the following working procedures: 1) charging and covering an inner cover; 2) locking the inner cover; 3) vacuumizing; 4) injecting a safe gas; 5) injecting a protective gas and discharging the waste gas; 6) starting heating; 7) keeping the temperature after reaching a target heating temperature; 8) stopping heat preservation; 9) hanging away the thermal cover and covering a cooling cover; 10) starting a cooling fan to reach a circulating fan shutdown temperature; 11) reaching a water cooling temperature; 12) stopping water cooling; 13) discharging from the furnace and vacuumizing; 14) injecting the safe gas; 15) loosing a compression mechanism; and 16) discharging. Compared with the prior art, by adding the vacuumizing working procedure, the surface brightness of the strip is increased from the grade 9 to the grade 8-7, namely the Ra value can be less than 0.2.
Description
Technical field
The invention belongs to the working method of improving copper and copper alloy plate band surface smoothness in annealing process,
Background technology
Copper and copper alloy plate band in order to improve copper and copper alloy plate band surface quality, adopt full oil rolling in process of production mostly; Though milling train all has been equipped with oil removal plant; But strip surface still has the part ROLLING OIL residual, and Residual oil is under the condition of high temperature in cover annealing process subsequently, and oxidation knot charcoal sticks to strip surface; Copper and copper alloy plate band surface smoothness are about 9 grades, and promptly the Ra value is 0.4.
Tradition cover annealing operation sequence is following:
1) charging cover inner cover operation, 2) inner cover locking operation, 3) vacuumize operation, 4) logical safe gas operation, 5) logical protection gas and waste discharge gas operation, 6) heating beginning operation, 7) reach the heating target temperature and be incubated operation, 8) insulation finishes operation, 9) hang out heat cover, cooling cowl operation, 10 on the cover) and the cooling blower startup and reach recirculation blower shutdown temperature, 11) reach water-cooled temperature operation, 12) water-cooled stops operation, 13) go out stove evacuation operation, 14) lead to safe gas operation, 15) unclamp hold-down mechanism operation, 16) the discharging operation.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method of improving surface quality in copper and the copper alloy plate band annealing process.
The technical scheme of technical solution problem of the present invention is: a kind of method that improves cover annealing strip surface luminance brightness comprises following operation:
1) charging cover inner cover operation, 2) inner cover locking operation, 3) vacuumize operation, 4) logical safe gas operation, 5) logical protection gas and waste discharge gas operation, 6) heating beginning operation, 7) reach the heating target temperature and be incubated operation, 8) insulation finishes operation, 9) hang out heat cover, cooling cowl operation, 10 on the cover) and the cooling blower startup and reach recirculation blower shutdown temperature, 11) reach water-cooled temperature operation, 12) water-cooled stops operation, 13) go out stove evacuation operation, 14) lead to safe gas operation, 15) unclamp hold-down mechanism operation, 16) the discharging operation;
6) in the heating beginning operation, when being warming up to 200-210 ℃, begin to vacuumize operation, concrete parameter is following: vacuum tightness is greater than-0.1MPa, and the time is 10 minutes.
For the ease of oil is extracted out completely, also can in ROLLING OIL, add N, the N-dimethylethanolamine, ROLLING OIL and N, the volume ratio of N-dimethylethanolamine is 1: 0.01-0.05.
The applicant thinks: when being warming up to 200 ℃, stick to Residual oil and other impurity of strip surface in the stove, under the condition of high temperature, evaporate into gaseous state, be suspended in body of heater inside.When insulation after the later stage, bell furnace bottom cycle blower fan quit work, these foreign gases just drop on strip surface, influence the strip surface luminance brightness.
And the present invention mainly is after the volatilization of Residual oil and other impurity is gaseous state, starts pumped vacuum systems, and gaseous impurities in the stove is got rid of, and avoids gaseous impurities to stick to strip surface, and then guarantees the strip surface luminance brightness.
The present invention compared with prior art, strip surface smooth finish improves the 8-7 levels from 9 grades, promptly the Ra value can reach below 0.2.
Embodiment
Below in conjunction with embodiment the present invention is done detailed explanation.
Embodiment 1:
A kind of method that improves cover annealing strip surface luminance brightness comprises following operation:
1) charging cover inner cover operation, 2) inner cover locking operation, 3) vacuumize operation, 4) logical safe gas operation, 5) logical protection gas and waste discharge gas operation, 6) heating beginning operation, 7) reach the heating target temperature and be incubated operation, 8) insulation finishes operation, 9) hang out heat cover, cooling cowl operation, 10 on the cover) and the cooling blower startup and reach recirculation blower shutdown temperature, 11) reach water-cooled temperature operation, 12) water-cooled stops operation, 13) go out stove evacuation operation, 14) lead to safe gas operation, 15) unclamp hold-down mechanism operation, 16) the discharging operation;
Embodiment 2:
Remove 6) heat in the beginning operation, when being warming up to more than 200 ℃, begin to vacuumize operation, concrete parameter is following: vacuum tightness is-0.1MPa that the time is 10 minutes.Outward, all the other are identical with embodiment 1.
Condition and the result of embodiment 1,2 are following:
Embodiment 3:
Remove and in ROLLING OIL, add N, the N-dimethylethanolamine, ROLLING OIL and N, the volume ratio of N-dimethylethanolamine is 1: 0.02, outer, all the other are identical with embodiment 2.
The surface smoothness of embodiment 3 is 0.1.
Claims (2)
1. method that improves cover annealing strip surface luminance brightness comprises following operation:
1) charging cover inner cover operation, 2) inner cover locking operation, 3) vacuumize operation, 4) logical safe gas operation, 5) logical protection gas and waste discharge gas operation, 6) heating beginning operation, 7) reach the heating target temperature and be incubated operation, 8) insulation finishes operation, 9) hang out heat cover, cooling cowl operation, 10 on the cover) and the cooling blower startup and reach recirculation blower shutdown temperature, 11) reach water-cooled temperature operation, 12) water-cooled stops operation, 13) go out stove evacuation operation, 14) lead to safe gas operation, 15) unclamp hold-down mechanism operation, 16) the discharging operation;
It is characterized in that: 6) in the heating beginning operation, when being warming up to 200-210 ℃, begin to vacuumize operation, concrete parameter is following: vacuum tightness is greater than-0.1MPa, and the time is 10 minutes.
2. a kind of method that improves cover annealing strip surface luminance brightness according to claim 1 is characterized in that: in ROLLING OIL, add N, and the N-dimethylethanolamine, ROLLING OIL and N, the volume ratio of N-dimethylethanolamine is 1: 0.01-0.05.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103551500A CN102367505A (en) | 2011-11-10 | 2011-11-10 | Method for increasing surface brightness of cover furnace annealing strip |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011103551500A CN102367505A (en) | 2011-11-10 | 2011-11-10 | Method for increasing surface brightness of cover furnace annealing strip |
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| CN102367505A true CN102367505A (en) | 2012-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2011103551500A Pending CN102367505A (en) | 2011-11-10 | 2011-11-10 | Method for increasing surface brightness of cover furnace annealing strip |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102994708A (en) * | 2012-10-16 | 2013-03-27 | 天津市亿博制钢有限公司 | Cover-type furnace annealing process |
| CN105349766A (en) * | 2015-12-18 | 2016-02-24 | 安徽楚江科技新材料股份有限公司 | Copper strip cover-type furnace annealing technology |
| CN108977629A (en) * | 2018-08-22 | 2018-12-11 | 上海宝钢包装钢带有限公司 | The method for annealing of Varying-thickness vehicle dormer window crossbeam |
Citations (3)
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| US4781848A (en) * | 1987-05-21 | 1988-11-01 | Aluminum Company Of America | Metalworking lubricant comprising an oil-in-water microemulsion |
| CN2206790Y (en) * | 1994-10-13 | 1995-09-06 | 鞍山钢铁公司 | Dabble cooling device for cover type annealing furnace |
| CN102199711A (en) * | 2011-04-15 | 2011-09-28 | 中天合金技术有限公司 | Production method of high-precision ultralong oxygen-free copper strip |
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2011
- 2011-11-10 CN CN2011103551500A patent/CN102367505A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4781848A (en) * | 1987-05-21 | 1988-11-01 | Aluminum Company Of America | Metalworking lubricant comprising an oil-in-water microemulsion |
| CN2206790Y (en) * | 1994-10-13 | 1995-09-06 | 鞍山钢铁公司 | Dabble cooling device for cover type annealing furnace |
| CN102199711A (en) * | 2011-04-15 | 2011-09-28 | 中天合金技术有限公司 | Production method of high-precision ultralong oxygen-free copper strip |
Non-Patent Citations (1)
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| 陈广义: "井式真空光亮退火炉结构的改进设计", 《装备制造》, 31 December 2009 (2009-12-31) * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102994708A (en) * | 2012-10-16 | 2013-03-27 | 天津市亿博制钢有限公司 | Cover-type furnace annealing process |
| CN105349766A (en) * | 2015-12-18 | 2016-02-24 | 安徽楚江科技新材料股份有限公司 | Copper strip cover-type furnace annealing technology |
| CN108977629A (en) * | 2018-08-22 | 2018-12-11 | 上海宝钢包装钢带有限公司 | The method for annealing of Varying-thickness vehicle dormer window crossbeam |
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Application publication date: 20120307 |