CN102744896A - Method for repairing stretch bending straightener rubber roller - Google Patents
Method for repairing stretch bending straightener rubber roller Download PDFInfo
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- CN102744896A CN102744896A CN2012102404392A CN201210240439A CN102744896A CN 102744896 A CN102744896 A CN 102744896A CN 2012102404392 A CN2012102404392 A CN 2012102404392A CN 201210240439 A CN201210240439 A CN 201210240439A CN 102744896 A CN102744896 A CN 102744896A
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- repair
- rubber roll
- repairing
- stretch bending
- rubber roller
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Abstract
The invention discloses a method for repairing a stretch bending straightener rubber roller. The method comprises the following steps of 1, analyzing and identifying the melting point of polyurethane hot melt glue which is the surface layer material of the rubber roller to be repaired, and taking the melting point as a standard melting point; 2, selecting the polyurethane hot melt glue of which the melting point is less than the standard melting point as a repairing material, wherein the difference between the two melting points is 10 to 25 DEG C; 3, grinding a repairing opening in the rubber roller to be repaired, and heating the repairing opening in the rubber roller to be repaired and the repairing material at the same time; 4, injecting the repairing material into the repairing opening; 5, after the repairing opening is fully filled, cooling the repairing opening at indoor normal temperature; and 6, grinding the surface of the repairing opening. Through melting injection of the polyurethane hot melt glue, the abrasion on the surface of the rubber roller is repaired, the rejection rate of the rubber roller is reduced, and the maintenance cost of equipment is saved.
Description
Technical field
The present invention relates to the maintenance of equipment technology in the aluminium strip production and processing field, especially with a kind of stretch bending-straightening machine rubber roll to study for a second time courses one has flunked method relevant.
Background technology
In the production procedure of aluminium strip, can relate to a cover stretch bending-straightening machine.Because the blank that hot rolling or casting-rolling technology are produced is through after cold rolling, since technological parameter installation level, the shape of roll forming roll gap; The reaction force of metal pair roller makes roll crooked, and the metal deformation pad expands roll, although roll is ground to certain convexity by technological requirement; But, make vertically inhomogeneous on the width because the fluctuation of some rolling factor also can cause the bigger variation of roll forming; The result who internal stress occurred causes aluminium strip to produce wave.As do not eliminate the deep processing that will influence band, just can not satisfy developing market demands.And the basic principle of stretch bending-straightening machine is stretcher leveling.With a fixed clamping device and transportable clamping device the sheet material two ends being stretched, is that sheet material produces plastic deformation and reaches the purpose that tension force stretching is aligned.Through this process, make surface and the bad various defectives of plate shape through producing in the cold-rolled process, in stretch bending-straightening machine, clean, stretch-bend leveller.
This structure the situation of the rubber roll damage of stretch bending-straightening machine often occurs after straightening is installed production for a long time, be mainly the surface glue slabbing and open, bubble, and 2 rubber rolls are hole in the high-pressure wash roller in maximum being mainly.Main cause be following some:
Operating personnel's error makes the rubber roll cracking breaking the aluminium sheet blade to the rubber roll surface.
Rubber roll is because of at the bottom of having bubble or aperture and causing rinse water to roller in the quality problems.
The high-pressure wash nozzle because of angle not to or the little rinse water that makes of plate face be sprayed on the rubber roll.(hydro-peening pressure 7.0MPa) causes rubber roll cracking, damage or produces hole.
Rubber roll occurs after the problems referred to above phenomenon, and the mode of taking is mainly outer processing maintenance or makes again, scraps impaired rubber roll is whole, and so mode causes the rubber roll maintenance cost of stretch bending-straightening machine high, never effective means solution.
In order to address the above problem, the inventor designs a kind of method of studying for a second time courses one has flunked of stretch bending-straightening machine rubber roll, and this case produces thus.
Summary of the invention
The purpose of this invention is to provide a kind of method of studying for a second time courses one has flunked of stretch bending-straightening machine rubber roll, the rubber roll surface is effectively studied for a second time courses one has flunked, reduce the aluminium strip production cost.
In order to achieve the above object, the present invention realizes by the following technical programs:
A kind of method of studying for a second time courses one has flunked of stretch bending-straightening machine rubber roll, the first step, Analysis and Identification wait to repair the fusing point of rubber roll surface layer material polyurethane hot melt, as the benchmark fusing point; Second step, select for use fusing point less than the polyurethane hot melt of benchmark fusing point as patching material, both fusing point temperature difference are 10～25 ℃; The 3rd step, treat to repair to repair on the rubber roll and mouthful polish, wait to repair and repair on the rubber roll mouthful and patching material heats simultaneously; In the 4th step, patching material is injected the repairing mouth; In the 5th step, fill with and repair after the mouth, cooling under normal temperature laboratory; In the 6th step, repair the polishing of oral thermometer face.
Such scheme can also be further perfect:
In described the 3rd step, repair the critical point that mouth is heated to fusing, patching material is heated to fusing and can flows.
In described the 4th step, the process that patching material is repaired mouth in injection, the heating that keeps repairing mouth.
In described the 5th step, filling with continued heating a period of time, waiting to repair a mouthful interior air and drain, replenishing and inject patching material, so cycling is repaired mouth until filling with.
In described the 6th step, adopt the mode of sand paper water mill to polish.
After adopting such scheme, the present invention has many beneficial effects:
Among the present invention, inject, the wearing and tearing on rubber roll surface are repaired, reduce the scrappage of rubber roll, save the maintenance of equipment cost through the fusing of adopting polyurethane hot melt.Fusing point according to surface layer material among the present invention is chosen patching material, can fully be combined into one at a certain temperature in order to ensure two materials like this, and repair efficiency is good.
In addition, in injection process, will keep heated condition, the discharge of being heated of the air in make repairing mouthful prevents gas residue.
The specific embodiment
A kind of method of studying for a second time courses one has flunked of stretch bending-straightening machine rubber roll at first, detects the fusing point of waiting to repair rubber roll surface layer material polyurethane hot melt.The rubber roll superficial layer raw material polyurethane hot melt that is adopted in the present embodiment, melting temperature is 160 ℃.Select patching material according to this melting temperature, the polyurethane hot melt that adopts BASF Aktiengesellschaft to produce in the present embodiment, model is CW70A, the temperature of its fusing point is 140 ℃.Both differ temperature is 20 ℃.Generally both melting temperatures differ 10～25 ℃, 15 ℃ of best results.
After material is selected to accomplish, treat the cut of repairing rubber roll and at first carry out surface finish, its surperficial dirty face is removed, make that simultaneously the cut periphery is smooth.After surface treatment is accomplished, adopt a 1500W infrared heater, again it is blown heat near melting temperature, make the polyurethane hot melt at cut place be in the critical condition of fusing cut place heating 20 seconds.In to the cut heating, patching material is also heated, be heated to fusing.The both flows into patching material in the cut after satisfying the condition of heating, when flowing into, continues to keep to make the polyurethane hot melt of both different melting points fully to be combined into one to the cut heating.
After patching material is filled with cut, continue the one end time of heating, help remaining in air in the cut come-up of being heated and discharge.After having air to discharge, the volume that injects patching material has suitably and reduces, and then mends again, observes exhaust again, so repeats to drain until air several times.When patching material is filled with, make surperficial dimpling in the rubber roll top layer.
After filling with, stop heating, rubber roll is placed cooling naturally under the normal temperature laboratory.Be at least cool time 4 hours.After waiting for fully cooling, rubber roll superficial layer and patching material are combined into one fully, adopt sand paper with water mill that surface finish is smooth at last.
The foregoing description only is used to the inventive concept of the present invention of explaining, but not to the qualification of rights protection of the present invention, allly utilizes this design that the present invention is carried out the change of unsubstantiality, all should fall into protection scope of the present invention.
Claims (5)
1. the method for studying for a second time courses one has flunked of a stretch bending-straightening machine rubber roll, it is characterized in that: the first step, Analysis and Identification wait to repair the fusing point of rubber roll surface layer material polyurethane hot melt, as the benchmark fusing point; Second step, select for use fusing point less than the polyurethane hot melt of benchmark fusing point as patching material, both fusing point temperature difference are 10～25 ℃; The 3rd step, treat to repair to repair on the rubber roll and mouthful polish, wait to repair and repair on the rubber roll mouthful and patching material heats simultaneously; In the 4th step, patching material is injected the repairing mouth; In the 5th step, fill with and repair after the mouth, cooling under normal temperature laboratory; In the 6th step, repair the polishing of oral thermometer face.
2. the method for studying for a second time courses one has flunked of a kind of stretch bending-straightening machine rubber roll as claimed in claim 1 is characterized in that: in described the 3rd step, repair the critical point that mouth is heated to fusing, patching material is heated to fusing and can flows.
3. the method for studying for a second time courses one has flunked of a kind of stretch bending-straightening machine rubber roll as claimed in claim 1 is characterized in that: in described the 4th step, and the process that patching material is repaired mouth in injection, the heating that keeps repairing mouth.
4. the method for studying for a second time courses one has flunked of a kind of stretch bending-straightening machine rubber roll as claimed in claim 1 is characterized in that: in described the 5th step, filling with continued heating a period of time; Waiting to repair a mouthful interior air drains; Replenish and inject patching material, so cycling is repaired mouth until filling with.
5. the method for studying for a second time courses one has flunked of a kind of stretch bending-straightening machine rubber roll as claimed in claim 1 is characterized in that: in described the 6th step, adopt the mode of sand paper water mill to polish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210240439.2A CN102744896B (en) | 2012-07-12 | 2012-07-12 | Method for repairing stretch bending straightener rubber roller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210240439.2A CN102744896B (en) | 2012-07-12 | 2012-07-12 | Method for repairing stretch bending straightener rubber roller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102744896A true CN102744896A (en) | 2012-10-24 |
| CN102744896B CN102744896B (en) | 2015-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210240439.2A Expired - Fee Related CN102744896B (en) | 2012-07-12 | 2012-07-12 | Method for repairing stretch bending straightener rubber roller |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104650748A (en) * | 2013-11-19 | 2015-05-27 | 哈尔滨欧麦克科技开发有限公司 | Treatment method for debonding of building plastic cement |
| CN110524917A (en) * | 2019-08-20 | 2019-12-03 | 湖南金时科技有限公司 | A kind of rubber roller fast repairing method |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905539A (en) * | 2010-08-24 | 2010-12-08 | 唐山建龙实业有限公司 | Method for repairing breakage on surface of polyurethane rubber roller for cold rolling |
-
2012
- 2012-07-12 CN CN201210240439.2A patent/CN102744896B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905539A (en) * | 2010-08-24 | 2010-12-08 | 唐山建龙实业有限公司 | Method for repairing breakage on surface of polyurethane rubber roller for cold rolling |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104650748A (en) * | 2013-11-19 | 2015-05-27 | 哈尔滨欧麦克科技开发有限公司 | Treatment method for debonding of building plastic cement |
| CN110524917A (en) * | 2019-08-20 | 2019-12-03 | 湖南金时科技有限公司 | A kind of rubber roller fast repairing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102744896B (en) | 2015-03-18 |
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Granted publication date: 20150318 Termination date: 20150712 |
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