CN101758358A - Process for repairing roller of bearing - Google Patents
Process for repairing roller of bearing Download PDFInfo
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- CN101758358A CN101758358A CN200810201135A CN200810201135A CN101758358A CN 101758358 A CN101758358 A CN 101758358A CN 200810201135 A CN200810201135 A CN 200810201135A CN 200810201135 A CN200810201135 A CN 200810201135A CN 101758358 A CN101758358 A CN 101758358A
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Abstract
The invention relates to a process for repairing a roller, in particular to a process for repairing a roller of a bearing. The process comprises the following steps of: (1) high tempering at a temperature ranged between 650 and 700 DEG C, keeping insulation for 2 hours, cooling, ensuring the smooth of a vent of the roller, and heating slowly, (2) processing the size of the roller to be phi 290 mm, (3) slowly heating to 500 DEG C and keeping insulation for 2 hours as the preheating before welding, (4) overlaying an intermediate layer, (5) overlaying 2 to 3 layers of working linings, (6) slowing cooling after overlaying, (7) tasting hardness, and (8) on condition that the hardness is unqualified, tempering at 650 DEG C to decrease the hardness, cutting, surface hardening and then finally grinding. Compared with the prior art, the process has simple steps, uniform hardness of the roller is ensured, the size of the roller is recovered to phi 300 mm, the surface hardness reaches to HRC 65+/-2, and the processing cost is decreased.
Description
[technical field]
The present invention relates to roller renovation technique technical field, the roller renovation technique that specifically a kind of material is a bearing.
[background technology]
Roller is very high for the uniformity requirement of case hardness; with the surface quality of assurance steel plate, and the as-cast structure crystal grain of deposited metal is thicker, and hardness is inhomogeneous; be difficult to guarantee the uniformity of hardness generally speaking; secondly the carbon equivalent of bearing steel is too high, and extremely difficult built-up welding is though take the possible built-up welding success of various safeguard measures (built-up welding transition zone, preheating etc.); but the built-up welding operation is tired many; will anneal before the weldering, postwelding is wanted to quench behind the high tempering again, has increased many costs.
[summary of the invention]
The objective of the invention is to overcome the deficiencies in the prior art, it is the roller renovation technique of bearing that a kind of material is provided.
Processing step is: (1) high tempering, and temperature 650-700 ℃, be incubated 2 hours, air cooling notices that the steam vent of roller is unobstructed, slowly heating; (2) the roll surface dimensioned is arrived ф 290mm; (3) slowly heat 500 ℃, be incubated 2 hours as weld preheating; (4) built-up welding transition zone, equipment are submerged arc welding machine, welding material: Mul+ipass 104 submerged arc pipe silk+431 solder flux, and behind the built-up welding transition zone, base has been carried high-carbon steel and has been changed medium carbon steel into, and diameter is 294mm; (5) built-up welding working lining 2 ∽ 3 layers, make diameter reach 302mm, welding material: Mul+ipass 225 submerged arc pipe silk+107 solder flux; (6) properly slow cooling after the built-up welding; (7) hardness test, if do not reach requirement, use is available on the machine after grinding; (8) if hardness does not reach requirement, then need after 650 ℃ of tempering reduce hardness, to carry out machining earlier, carry out surface hardening, last grinding then.
The present invention compared with prior art, processing step is simple, can guarantee the uniformity of roller hardness, and roll size is returned to ф 300mm, and case hardness reaches HRC65 ± 2, and cuts down finished cost.
[specific embodiment]
Illustrate in greater detail the present invention below by embodiment.
A kind of material is the roller renovation technique of bearing, it is characterized in that described processing step is (1) high tempering, temperature 650-700 ℃, be incubated 2 hours, and air cooling notices that the steam vent of roller is unobstructed, slowly heating; (2) the roll surface dimensioned is arrived ф 290mm; (3) slowly heat 500 ℃, be incubated 2 hours as weld preheating; (4) built-up welding transition zone, equipment are submerged arc welding machine, welding material: Mul+ipass 104 submerged arc pipe silk+431 solder flux, and behind the built-up welding transition zone, base has been carried high-carbon steel and has been changed medium carbon steel into, and diameter is 294mm; (5) built-up welding working lining 2 ∽ 3 layers, make diameter reach 302mm, welding material: Mul+ipass 225 submerged arc pipe silk+107 solder flux; (6) properly slow cooling after the built-up welding; (7) hardness test, if do not reach requirement, use is available on the machine after grinding; (8) if hardness does not reach requirement, then need after 650 ℃ of tempering reduce hardness, to carry out machining earlier, carry out surface hardening, last grinding then.
Claims (1)
1. the roller renovation technique that material is a bearing is characterized in that described processing step is (1) high tempering, temperature 650-700 ℃, be incubated 2 hours, and air cooling notices that the steam vent of roller is unobstructed, slowly heating; (2) the roll surface dimensioned is arrived φ 290mm; (3) slowly heat 500 ℃, be incubated 2 hours as weld preheating; (4) built-up welding transition zone, equipment are submerged arc welding machine, welding material: Mul+ipass 104 submerged arc pipe silk+431 solder flux, and behind the built-up welding transition zone, base has been carried high-carbon steel and has been changed medium carbon steel into, and diameter is 294mm; (5) built-up welding working lining 2 ∽ 3 layers, make diameter reach 302mm, welding material: Mul+ipass 225 submerged arc pipe silk+107 solder flux; (6) properly slow cooling after the built-up welding; (7) hardness test, if do not reach requirement, use is available on the machine after grinding; (8) if hardness does not reach requirement, then need after 650 ℃ of tempering reduce hardness, to carry out machining earlier, carry out surface hardening, last grinding then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810201135A CN101758358A (en) | 2008-10-14 | 2008-10-14 | Process for repairing roller of bearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810201135A CN101758358A (en) | 2008-10-14 | 2008-10-14 | Process for repairing roller of bearing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101758358A true CN101758358A (en) | 2010-06-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810201135A Pending CN101758358A (en) | 2008-10-14 | 2008-10-14 | Process for repairing roller of bearing |
Country Status (1)
| Country | Link |
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| CN (1) | CN101758358A (en) |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102569732A (en) * | 2012-03-16 | 2012-07-11 | 天津力神电池股份有限公司 | Method for automatically repairing extreme differences of rolling rollers of battery pole plate |
| CN102990195A (en) * | 2012-12-13 | 2013-03-27 | 常州蓝翼飞机装备制造有限公司 | Surfacing process for corrosion-resistant layers of tube plates of large heat exchangers |
| CN103042339A (en) * | 2013-01-22 | 2013-04-17 | 时鹏 | Pump cover repair technology |
| CN103074482A (en) * | 2011-10-26 | 2013-05-01 | 宝山钢铁股份有限公司 | Regeneration method of scrapped Cr5 forged-steel working roller |
| CN103521995A (en) * | 2013-09-30 | 2014-01-22 | 邯钢集团邯宝钢铁有限公司 | Metallurgy sintering fuel breaker roll repairing technology |
| CN104043940A (en) * | 2013-03-11 | 2014-09-17 | 无锡立珍应用科技有限公司 | Method for repairing main shaft of sea water circulating pump |
| CN104646964A (en) * | 2015-02-05 | 2015-05-27 | 田亮 | Surface hardening process method for camshaft of diesel machine |
| CN104786003A (en) * | 2015-05-25 | 2015-07-22 | 南车戚墅堰机车有限公司 | Method for repairing main bearing hole of body |
| CN107150205A (en) * | 2017-03-28 | 2017-09-12 | 宝钢轧辊科技有限责任公司 | Method for scrapping large forged back -up roll circular regeneration |
| CN109108531A (en) * | 2018-10-11 | 2019-01-01 | 苏州优霹耐磨复合材料有限公司 | Roll overlaying repairs pre-treating method |
| CN109366090A (en) * | 2018-11-27 | 2019-02-22 | 安徽泰尔表面工程技术有限公司 | Heavy-duty universal beaming roller end axle sleeve remanufactures renovation technique |
| CN109434320A (en) * | 2018-11-27 | 2019-03-08 | 安徽泰尔表面工程技术有限公司 | A kind of wear-resisting welding wire with flux core and the method that part is repaired using it |
| CN114309950A (en) * | 2021-12-15 | 2022-04-12 | 天津滨海雷克斯激光科技发展有限公司 | Material process suitable for surface pulse laser welding additive of carburized and quenched steel workpiece |
| CN114799420A (en) * | 2022-05-17 | 2022-07-29 | 泰尔(安徽)工业科技服务有限公司 | Repairing method of hot-rolled laminar cooling roller |
-
2008
- 2008-10-14 CN CN200810201135A patent/CN101758358A/en active Pending
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103074482A (en) * | 2011-10-26 | 2013-05-01 | 宝山钢铁股份有限公司 | Regeneration method of scrapped Cr5 forged-steel working roller |
| CN103074482B (en) * | 2011-10-26 | 2014-08-20 | 宝山钢铁股份有限公司 | Regeneration method of scrapped Cr5 forged-steel working roller |
| CN102569732A (en) * | 2012-03-16 | 2012-07-11 | 天津力神电池股份有限公司 | Method for automatically repairing extreme differences of rolling rollers of battery pole plate |
| CN102569732B (en) * | 2012-03-16 | 2014-07-02 | 天津力神电池股份有限公司 | Method for automatically repairing extreme differences of rolling rollers of battery pole plate |
| CN102990195A (en) * | 2012-12-13 | 2013-03-27 | 常州蓝翼飞机装备制造有限公司 | Surfacing process for corrosion-resistant layers of tube plates of large heat exchangers |
| CN103042339A (en) * | 2013-01-22 | 2013-04-17 | 时鹏 | Pump cover repair technology |
| CN104043940A (en) * | 2013-03-11 | 2014-09-17 | 无锡立珍应用科技有限公司 | Method for repairing main shaft of sea water circulating pump |
| CN103521995A (en) * | 2013-09-30 | 2014-01-22 | 邯钢集团邯宝钢铁有限公司 | Metallurgy sintering fuel breaker roll repairing technology |
| CN104646964A (en) * | 2015-02-05 | 2015-05-27 | 田亮 | Surface hardening process method for camshaft of diesel machine |
| CN104786003A (en) * | 2015-05-25 | 2015-07-22 | 南车戚墅堰机车有限公司 | Method for repairing main bearing hole of body |
| CN107150205A (en) * | 2017-03-28 | 2017-09-12 | 宝钢轧辊科技有限责任公司 | Method for scrapping large forged back -up roll circular regeneration |
| CN109108531A (en) * | 2018-10-11 | 2019-01-01 | 苏州优霹耐磨复合材料有限公司 | Roll overlaying repairs pre-treating method |
| CN109366090A (en) * | 2018-11-27 | 2019-02-22 | 安徽泰尔表面工程技术有限公司 | Heavy-duty universal beaming roller end axle sleeve remanufactures renovation technique |
| CN109434320A (en) * | 2018-11-27 | 2019-03-08 | 安徽泰尔表面工程技术有限公司 | A kind of wear-resisting welding wire with flux core and the method that part is repaired using it |
| CN109366090B (en) * | 2018-11-27 | 2020-04-14 | 安徽泰尔表面工程技术有限公司 | Remanufacturing and repairing process for heavy-duty universal shaft roller end shaft sleeve |
| CN114309950A (en) * | 2021-12-15 | 2022-04-12 | 天津滨海雷克斯激光科技发展有限公司 | Material process suitable for surface pulse laser welding additive of carburized and quenched steel workpiece |
| CN114799420A (en) * | 2022-05-17 | 2022-07-29 | 泰尔(安徽)工业科技服务有限公司 | Repairing method of hot-rolled laminar cooling roller |
| CN114799420B (en) * | 2022-05-17 | 2024-03-19 | 泰尔(安徽)工业科技服务有限公司 | Repairing method of hot-rolled laminar cooling roller |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100630 |