CN102632360A - Method for repairing cracks of steel bands for producing polyimide film by tape-casting - Google Patents
Method for repairing cracks of steel bands for producing polyimide film by tape-casting Download PDFInfo
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- CN102632360A CN102632360A CN2012101156450A CN201210115645A CN102632360A CN 102632360 A CN102632360 A CN 102632360A CN 2012101156450 A CN2012101156450 A CN 2012101156450A CN 201210115645 A CN201210115645 A CN 201210115645A CN 102632360 A CN102632360 A CN 102632360A
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- welding
- steel band
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- weld seam
- repairing
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- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Grinding And Polishing Of Tertiary Curved Surfaces And Surfaces With Complex Shapes (AREA)
Abstract
The invention discloses a method for repairing cracks of steel bands for producing a polyimide film by tape-casting. The method comprises the following steps of: cleaning the interiors of steel band cracks and peripherals, and removing oil dirt; welding the crack parts by a manual tungsten electrode argon arc welding method, and performing through welding to achieve single-face welding and double-face forming, so that a weld joint is filled completely; after welding is finished, polishing the welded parts by a sand paper type polishing machine; performing rough polishing by rough sand paper until the weld joint is level to a base material steel band; and polishing by fine sand paper, thus finishing repairing. The number of process steps is small, so that the cracks can be repaired quickly, the repairing efficiency is high, and the using cost is low. Due to a sequence of welding and the polishing, a repairing effect is good.
Description
Technical field
The present invention relates to steel band Crack repair method, especially gather the production steel band Crack repair method of The tape casting acid imide film.
Background technology
Along with the development rapidly of LCD, digital camera and mobile phone market, make the demand of the film of high technology content is increased sharply.The film that is applied to the electronic product field is mainly processed by triacetate fiber (TAC), polyimides (PI), Merlon (PC), polypropylene (PP) or other high-tech plastic materials.The production of these films all be unable to do without the polishing steel band and based on the casting apparatus of steel band.Have only high-quality steel strip surface just can produce high performance film.Steel band in process of production because the inhomogeneous or operation exception of tension force of equipment, steel band possibly produce surperficial mechanical damage or crackle, particularly the crackle harm that produces of edge is maximum, the situation that may cause steel band integral body to tear.After crackle occurring, can stay very dark crackle and have greasy dirt on the surface of product, if untimely reparation, it is qualified that the product quality of producing just can't reach, and production cost of products is very high, and wasted manpower also loss fund.So in case crackle occurs, just should take suitable technology and method to repair as early as possible, known technology does not also have a kind of restorative procedure simply and easily at present.
Summary of the invention
The object of the invention just provides a kind of simple and convenient, use cost is low, remediation efficiency is high production steel band Crack repair method of gathering The tape casting acid imide film.
For realizing above-mentioned purpose, the technical scheme that the present invention adopts is: a kind of production steel band Crack repair method of The tape casting polyimide film, and it comprises following production stage:
At first with cleaning out in steel band crackle and the periphery, and use the acetone wipe surfaces, remove greasy dirt;
Secondly, argon tungsten-arc welding weld crack place by hand, welding wire is intercepting on the steel scrap band; Gage of wire adopts 0.5-1mm during welding; Through welding reaches single face welding and double face shaping, and welding current is at 80-85A, in the welding process; Guarantee that weld seam exceeds mother metal steel band 2-3mm; Merge with welding along weld seam automatically again after having welded, make weld seam guarantee that complete filling is real, weld Current Control automatically at 110-130A; The back side moulding situation of welding cooling inspection weld seam after 30 minutes, whether through welding;
At last, adopt sand paper formula sanding machine to be polished in the welding position of through welding, roughly grind with coarse sandpaper earlier, be ground to weld seam with till the mother metal steel band is equal,, promptly accomplish and repair again with the fine sandpaper polishing.
The above-mentioned cleaning scope with cleaning out in steel band crackle and the periphery is in the 50mm scope.
The invention has the beneficial effects as follows: processing step is few, therefore repairs fast, and remediation efficiency is high, and use cost is low; The present invention adopts and welds sanding and polishing again, and repairing effect is good.
The specific embodiment
The production steel band Crack repair method of a kind of The tape casting polyimide film of the present invention is repaired and to be comprised following production stage: at first with cleaning out in steel band crackle and the peripheral 50mm scope, and use the acetone wipe surfaces, the removal greasy dirt;
Secondly, argon tungsten-arc welding weld crack place by hand, welding wire is intercepting on the steel scrap band; Gage of wire adopts 0.5-1mm during welding; Through welding reaches single face welding and double face shaping, and welding current is at 80-85A, in the welding process; Guarantee that weld seam exceeds mother metal steel band 2-3mm; Merge with welding along weld seam automatically again after having welded, make weld seam guarantee that complete filling is real, weld Current Control automatically at 110-130A; The back side moulding situation of welding cooling inspection weld seam after 30 minutes, whether through welding; If through welding adopts sand paper formula sanding machine to be polished in the welding position again, roughly grind earlier with coarse sandpaper, weld seam is ground to till the mother metal steel band is equal, with the fine sandpaper polishing, promptly accomplish and repair again.
Claims (2)
1. the production steel band Crack repair method of a The tape casting polyimide film, it comprises following production stage its characteristic:
At first with cleaning out in steel band crackle and the periphery, and use the acetone wipe surfaces, remove greasy dirt;
Secondly, argon tungsten-arc welding weld crack place by hand, welding wire is intercepting on the steel scrap band; Gage of wire adopts 0.5-1mm during welding; Through welding reaches single face welding and double face shaping, and welding current is at 80-85A, in the welding process; Guarantee that weld seam exceeds mother metal steel band 2-3mm; Merge with welding along weld seam automatically again after having welded, make weld seam guarantee that complete filling is real, weld Current Control automatically at 110-130A; The back side moulding situation of welding cooling inspection weld seam after 30 minutes, whether through welding;
At last, adopt sand paper formula sanding machine to be polished in the welding position of through welding, roughly grind with coarse sandpaper earlier, be ground to weld seam with till the mother metal steel band is equal,, promptly accomplish and repair again with the fine sandpaper polishing.
2. production steel band Crack repair method of gathering The tape casting acid imide film according to claim 1 is characterized in that described is in the 50mm scope with the cleaning scope of cleaning out in steel band crackle and the periphery.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101156450A CN102632360A (en) | 2012-04-19 | 2012-04-19 | Method for repairing cracks of steel bands for producing polyimide film by tape-casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101156450A CN102632360A (en) | 2012-04-19 | 2012-04-19 | Method for repairing cracks of steel bands for producing polyimide film by tape-casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102632360A true CN102632360A (en) | 2012-08-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012101156450A Pending CN102632360A (en) | 2012-04-19 | 2012-04-19 | Method for repairing cracks of steel bands for producing polyimide film by tape-casting |
Country Status (1)
| Country | Link |
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| CN (1) | CN102632360A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108673048A (en) * | 2018-05-17 | 2018-10-19 | 苏州罗克莱堆焊科技有限公司 | A kind of copper-tin alloy bead-welding technology |
| CN112847061A (en) * | 2020-12-31 | 2021-05-28 | 浦项(张家港)不锈钢股份有限公司 | Method for removing cracks on surface of super austenitic stainless steel strip steel and product |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774063A (en) * | 2010-01-12 | 2010-07-14 | 孙伟松 | Defect repair welding process of stainless steel composite board coating |
-
2012
- 2012-04-19 CN CN2012101156450A patent/CN102632360A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101774063A (en) * | 2010-01-12 | 2010-07-14 | 孙伟松 | Defect repair welding process of stainless steel composite board coating |
Non-Patent Citations (2)
| Title |
|---|
| 李炳华: "提高焊缝疲劳强度的新工艺", 《机车车辆工艺》, no. 01, 20 February 1997 (1997-02-20), pages 16 - 17 * |
| 阎高伦等: "日产不锈钢薄钢带的修复", 《石油化工设备》, vol. 35, no. 01, 30 January 2006 (2006-01-30), pages 82 - 83 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108673048A (en) * | 2018-05-17 | 2018-10-19 | 苏州罗克莱堆焊科技有限公司 | A kind of copper-tin alloy bead-welding technology |
| CN112847061A (en) * | 2020-12-31 | 2021-05-28 | 浦项(张家港)不锈钢股份有限公司 | Method for removing cracks on surface of super austenitic stainless steel strip steel and product |
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Application publication date: 20120815 |