CN102744896B - Method for repairing stretch bending straightener rubber roller - Google Patents
Method for repairing stretch bending straightener rubber roller Download PDFInfo
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- CN102744896B CN102744896B CN201210240439.2A CN201210240439A CN102744896B CN 102744896 B CN102744896 B CN 102744896B CN 201210240439 A CN201210240439 A CN 201210240439A CN 102744896 B CN102744896 B CN 102744896B
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- mouth
- repairing
- repaired
- rubber roller
- patching material
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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 equipment Repairing Technology in 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, a set of stretch bending-straightening machine can be related to.Because the blank that hot rolling or casting-rolling technology are produced is after cold rolling, due to technological parameter equipment level, the shape of roll forming roll gap, the reaction force of metal pair roller makes roll bend, and the distortion pad of metal makes roll expand, although roll is ground to certain convexity by technological requirement, but due to the fluctuation of some rolling factor, also can cause the larger change of roll forming, make the longitudinal direction on width uneven, there is the result of internal stress, cause aluminium strip to produce wave.If do not eliminated the deep processing that will affect band, just developing market demands can not be met.And the most general principle of stretch bending-straightening machine, be stretcher leveling.Stretching to sheet material two ends with a fixed clamping device and transportable clamping device, is that sheet material produces plastic deformation and reaches the object of tension force stretching aligning.By this process, making the various defects of the surface by producing in cold-rolled process and deformed steel strip, carrying out cleaning in stretch bending-straightening machine, stretch-bend leveller.
This structure, after straightening installs production for a long time, often occurs being mainly the situation that the rubber roll of stretch bending-straightening machine damages surface size and splitting, bubble, and maximum to be mainly 2 rubber rolls in high-pressure wash roller be hole.Main cause be following some:
Operating personnel's error, breaking aluminium sheet blade to roll surfaces, makes rubber roll ftracture.
Rubber roll causes at the bottom of rinse water to roller because having bubble or aperture in quality problems.
High-pressure wash nozzle because of angle not to or plate face little and rinse water is sprayed on rubber roll.(hydro-peening pressure 7.0MPa), causes rubber roll to ftracture, damages or produce hole.
After the problems referred to above phenomenon appears in rubber roll, the mode taked is mainly outer processing maintenance or again makes, and scrap whole for impaired rubber roll, mode like this causes the rubber roll maintenance cost of stretch bending-straightening machine high, and never effective means solves.
In order to solve the problem, what the present inventor designed a kind of stretch bending-straightening machine rubber roll studies for a second time courses one has flunked method, and this case produces thus.
Summary of the invention
What the object of this invention is to provide a kind of stretch bending-straightening machine rubber roll studies for a second time courses one has flunked method, effectively studies for a second time courses one has flunked roll surfaces, reduces aluminium strip production cost.
In order to achieve the above object, the present invention is achieved through the following technical solutions:
Stretch bending-straightening machine rubber roll study for a second time courses one has flunked a method, the first step, the fusing point of Analysis and Identification roll surfaces layer material to be repaired polyurethane hot melt, as benchmark fusing point; Second step, selects fusing point to be less than the polyurethane hot melt of benchmark fusing point as patching material, and both fusing point temperature difference are 10 ~ 25 DEG C; 3rd step, treats to repair and rubber roll repairs mouth polishes, and rubber roll to be repaired repairs mouth and patching material heats simultaneously; 4th step, injects patching material and repairs mouth; 5th step, fills after repairing mouth, cools under normal temperature laboratory; 6th step, repairs mouth surface finish.
Such scheme can also be perfect further:
In the 3rd described step, repair the critical point that mouth is heated to melt, patching material is heated to fusing and can flows.
In the 4th described step, the process of mouth repaired by patching material injecting, and keeps the heating of repairing mouth.
In the 5th described step, after filling, continue heating a period of time, the air in repaired mouth to be repaired drains, then supplements injection patching material, and cycling like this, until fill repairing mouth.
The 6th described step, adopts the mode of sand paper water mill to polish.
After adopting such scheme, the present invention has many beneficial effects:
In the present invention, by adopting the fusing of polyurethane hot melt to inject, the wearing and tearing of roll surfaces being repaired, reduces the scrappage of rubber roll, saving maintenance of equipment cost.Fusing point according to surface layer material in the present invention chooses patching material, and can fully be combined into one at a certain temperature in order to ensure two materials like this, repair efficiency is good.
In addition, to heated condition be maintained in injection process, the air heats repaired in mouth be discharged, prevents gas residue.
Detailed description of the invention
Stretch bending-straightening machine rubber roll study for a second time courses one has flunked a method, first, detect the fusing point of roll surfaces layer material polyurethane hot melt to be repaired.Roll surfaces layer raw material polyurethane hot melt adopted in the present embodiment, melting temperature is 160 DEG C.Select patching material according to this melting temperature, adopt the polyurethane hot melt that BASF Aktiengesellschaft produces in the present embodiment, model is CW70A, and the temperature of its fusing point is 140 DEG C.Both difference temperature are 20 DEG C.Both melting temperature differences 10 ~ 25 DEG C general, 15 DEG C of best results.
After Material selec-tion completes, treat the cut repairing rubber roll and first carry out surface finish, its surperficial dirty face is removed, makes cut periphery smooth simultaneously.After surface treatment completes, adopt a 1500W infrared heater to heat 20 seconds to cut place, then heat is blown to close to melting temperature to it, make the polyurethane hot melt at cut place be in the critical condition of fusing.While to cut heating, patching material is also heated, be heated to fusing.After both meeting the condition of heating, patching material is flowed in cut, while inflow, continue to keep, to cut heating, the polyurethane hot melt of both different melting points being fully combined into one.
After patching material fills cut, continue heating one end time, be conducive to the air heats floating remained in cut and discharge.After having air to discharge, the volume injecting patching material has suitable reduction, then fill into again, then observe exhaust, so repeat several times, until air drains.When patching material fills, make surperficial dimpling in rubber roll top layer.
After filling, stop heating, naturally cool under rubber roll being placed in normal temperature laboratory.Cool time is at least 4 hours.After waiting for fully cooling, roll surfaces layer and patching material are combined into one completely, finally adopt sand paper water mill that surface finish is smooth.
Above-described embodiment only illustrates inventive concept of the present invention for explaining, but not the restriction to rights protection of the present invention, all changes utilizing this design the present invention to be carried out to unsubstantiality, all should fall into protection scope of the present invention.
Claims (1)
1. stretch bending-straightening machine rubber roll study for a second time courses one has flunked a method, it is characterized in that: the first step, the fusing point of Analysis and Identification roll surfaces layer material to be repaired polyurethane hot melt, as benchmark fusing point; Second step, selects fusing point to be less than the polyurethane hot melt of benchmark fusing point as patching material, and both fusing point temperature difference are 10 ~ 25 DEG C; 3rd step, treats to repair and rubber roll repairs mouth polishes, and rubber roll to be repaired repairs mouth and patching material heats simultaneously; 4th step, injects patching material and repairs mouth; 5th step, fills after repairing mouth, cools under normal temperature laboratory; 6th step, repairs mouth surface finish; In the 3rd described step, repair the critical point that mouth is heated to melt, patching material is heated to fusing and can flows; In the 4th described step, the process of mouth repaired by patching material injecting, and keeps the heating of repairing mouth; In the 5th described step, after filling, continue heating a period of time, the air in repaired mouth to be repaired drains, then supplements injection patching material, and cycling like this, until fill repairing mouth; The 6th described step, adopts 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 CN102744896A (en) | 2012-10-24 |
| CN102744896B true CN102744896B (en) | 2015-03-18 |
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Family Applications (1)
| 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 |
Country Status (1)
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| CN (1) | CN102744896B (en) |
Families Citing this family (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 |
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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 |
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| CN102744896A (en) | 2012-10-24 |
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