CN1332255A - Reinforcing laser treatment for surface of cast steel roll - Google Patents
Reinforcing laser treatment for surface of cast steel roll Download PDFInfo
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- CN1332255A CN1332255A CN 01114853 CN01114853A CN1332255A CN 1332255 A CN1332255 A CN 1332255A CN 01114853 CN01114853 CN 01114853 CN 01114853 A CN01114853 A CN 01114853A CN 1332255 A CN1332255 A CN 1332255A
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- cast steel
- steel roll
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Abstract
In the laser surface reinforcing treatment of the present invention, the surface is first laser heated to melting and then solidified to bond with base through natural metallurgically. While discharging impurities and gases, fine and homogeneous structure, high hardness, reinforced wear resistance and corrosion resistance are obtained through recrystallization. In addition, owing to the thin smelted layer and smell heat action area, the treatment has less effect on the surface roughness and size of the workpiece so that no subsequent polishing is needed before direct use. The present invention is a laser surface reinforcing treatment method suitable for cast steel roll.
Description
The present invention is the treatment process to the surface of cast steel roll laser reinforcing.The innovative technology that belongs to material surface treatment method.
The used cast steel roll of procedure for steel rolling in metallurgical industry machine adopts the high carbon and high manganese steel casting to form mostly now.The initial hardened layer of material surface owing to behind wearing and tearing and the loaded vehicle the lower internal layer of hardness is exposed, only is about HRc25 through measured hardness after using first.Hardness is not high, and wear resistance reduces, and work-ing life is short, has increased the consumption costs of enterprise's spare part.For this reason, manufacturing enterprise urgently wishes the surface hardness of this class spare part can be brought up to more than the HRc56, to improve its work-ing life, reduces the consumption costs of spare part.But with inaccessible this requirement of conventional heat treating method.
The object of the present invention is to provide a kind of simple and effective raising surface of cast steel roll hardness, and the reinforcing laser treatment for surface of cast steel roll of flexible operation.
Reinforcing laser treatment of the present invention is with laser beam workpiece surface to be carried out consolidation to quench, and carries out as follows:
(1) surface of pending material is cleared up, removed greasy dirt and iron rust, be coated with extinction coating;
(2) with laser beam rapid scanning finished surface, make it be heated to fusing;
(3) laser beam leaves the workpiece surface to be machined, and workpiece carries out self coolingly because of thermal conduction itself, and its crucible zone is solidified;
(4) carry out surface-conditioning, inspection.
The output rating P of above-mentioned laser beam is 1.9～2.2KW, and spot size D gets 4.5～5.5mm, and scan velocity V is 0.7～0.9m/min.Amount of lap is 0mm between laser beam.
Describe particular case of the present invention in detail below in conjunction with embodiment:
Fig. 1 is the laser surface intensified scanning sequency figure of the embodiment of the invention.
Embodiment:
The present invention handles for surface of cast steel roll is carried out the consolidation quenching method with laser beam, and reinforcing laser treatment of the present invention is with laser beam workpiece surface to be carried out consolidation to quench, and carries out as follows:
(1) surface of pending material is cleared up, removed greasy dirt and iron rust, be coated with extinction coating;
(2) with laser beam rapid scanning finished surface, make it be heated to fusing;
(3) laser beam leaves the workpiece surface to be machined, and workpiece carries out self coolingly because of thermal conduction itself, and its crucible zone is solidified;
(4) carry out surface-conditioning, inspection.
Fig. 1 is the scanning sequency figure with laser beam flying cast steel roll groove surface, and scanning times is according to the decision of roll scantlings of the structure, by 1,2,3,4,5 ... sequential scanning, the roll external diameter is 650～1050mm, material is 70M
n2M
o, the output rating P of laser beam is 1.9～2.2KW, and spot size D gets 4.5～5.5mm, and scan velocity V is 0.7～0.9m/min.Amount of lap is 0mm between laser beam.
The present invention is extremely melted material surface with laser beam heats owing to adopting merely, making consolidation layer and material matrix is the treatment process of natural metallurgical binding, therefore, workpiece surface is in the consolidation process, not only can get rid of its impurity and gas, and its chilling recrystallization can obtain the comparatively tissue of refinement homogeneous and higher hardness, and hardness is brought up to HRc55～60 by HB300～320 before handling, and its wear resistance and erosion resistance are all better; In addition, because its crucible zone is thin, the heat effect district is little, and less to the roughness and the workpiece size influence of workpiece surface, generalized case can not need be carried out follow-up polishing and directly used.The present invention is applied range not only, use flexibly, workpiece hardness is improved, wear resistance is good, long service life, and the work-ing life that can improve mechanical means and accessory thereof, reduce the consumption costs of accessory, thereby the production cost of enterprise is reduced greatly, and the present invention is that a kind of technology is reasonable, easy to use, all more significant a kind of reinforcing laser treatment for surface of cast steel roll of its social benefit and economic benefit.
Claims (5)
1, reinforcing laser treatment for surface of cast steel roll is characterized in that with laser beam workpiece surface being carried out consolidation quenches, and carries out as follows:
(1) surface of pending material is cleared up, removed greasy dirt and iron rust, be coated with extinction coating;
(2) with laser beam rapid scanning finished surface, make it be heated to fusing;
(3) laser beam leaves the workpiece surface to be machined, and workpiece carries out self coolingly because of thermal conduction itself, and its crucible zone is solidified;
(4) carry out surface-conditioning, inspection.
2, reinforcing laser treatment for surface of cast steel roll according to claim 1, the output rating P that it is characterized in that above-mentioned laser beam is 1.9～2.2KW.
3, reinforcing laser treatment for surface of cast steel roll according to claim 1 is characterized in that above-mentioned laser beam spot size D is φ 4.5～φ 5.5mm.
4, reinforcing laser treatment for surface of cast steel roll according to claim 1, the scan velocity V that it is characterized in that above-mentioned laser beam is 0.7～0.9m/min.
5,, it is characterized in that the amount of lap between laser beam spot is 0mm according to claim 1 or 2 or 3 or 4 described reinforcing laser treatment for surface of cast steel roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011148535A CN1138005C (en) | 2001-06-26 | 2001-06-26 | Reinforcing laser treatment for surface of cast steel roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB011148535A CN1138005C (en) | 2001-06-26 | 2001-06-26 | Reinforcing laser treatment for surface of cast steel roll |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1332255A true CN1332255A (en) | 2002-01-23 |
| CN1138005C CN1138005C (en) | 2004-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB011148535A Expired - Fee Related CN1138005C (en) | 2001-06-26 | 2001-06-26 | Reinforcing laser treatment for surface of cast steel roll |
Country Status (1)
| Country | Link |
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| CN (1) | CN1138005C (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775474A (en) * | 2010-03-18 | 2010-07-14 | 唐山瑞兆激光技术机械修复有限公司 | Method for strengthening metal sieve plate by laser broadband remelting |
| CN102676749A (en) * | 2011-03-07 | 2012-09-19 | 山东万丰煤化工设备制造有限公司 | Laser heat treatment hardening method for steel pipe cast iron roll surface |
| CN105349735A (en) * | 2015-10-19 | 2016-02-24 | 无锡清杨机械制造有限公司 | Laser fusing technology |
| CN105483358A (en) * | 2015-12-08 | 2016-04-13 | 四川国鑫机械制造有限公司 | Treatment method for cast iron roll groove |
| CN108425034A (en) * | 2018-04-03 | 2018-08-21 | 烟台万隆真空冶金股份有限公司 | A kind of surface reinforcing method of beryllium copper Casting Roller set |
| CN108723091A (en) * | 2018-06-25 | 2018-11-02 | 湖北金标通用轧辊有限公司 | A kind of chemical industry high-chromium iron-cast roller and preparation method thereof |
| CN108754299A (en) * | 2018-06-25 | 2018-11-06 | 湖北金标通用轧辊有限公司 | A kind of high-chromium iron-cast roller and preparation method thereof of tungsten Metamorphism treatment |
| CN108796353A (en) * | 2018-06-25 | 2018-11-13 | 湖北金标通用轧辊有限公司 | A kind of high-chromium iron-cast roller and preparation method thereof |
| CN115058564A (en) * | 2022-05-25 | 2022-09-16 | 新疆八一钢铁股份有限公司 | Manufacturing method of withdrawal and straightening machine roller |
-
2001
- 2001-06-26 CN CNB011148535A patent/CN1138005C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101775474A (en) * | 2010-03-18 | 2010-07-14 | 唐山瑞兆激光技术机械修复有限公司 | Method for strengthening metal sieve plate by laser broadband remelting |
| CN101775474B (en) * | 2010-03-18 | 2013-03-27 | 唐山瑞兆激光技术机械修复有限公司 | Method for strengthening metal sieve plate by laser broadband remelting |
| CN102676749A (en) * | 2011-03-07 | 2012-09-19 | 山东万丰煤化工设备制造有限公司 | Laser heat treatment hardening method for steel pipe cast iron roll surface |
| CN102676749B (en) * | 2011-03-07 | 2013-10-16 | 山东万丰煤化工设备制造有限公司 | Laser heat treatment hardening method for steel pipe cast iron roll surface |
| CN105349735A (en) * | 2015-10-19 | 2016-02-24 | 无锡清杨机械制造有限公司 | Laser fusing technology |
| CN105483358A (en) * | 2015-12-08 | 2016-04-13 | 四川国鑫机械制造有限公司 | Treatment method for cast iron roll groove |
| CN108425034A (en) * | 2018-04-03 | 2018-08-21 | 烟台万隆真空冶金股份有限公司 | A kind of surface reinforcing method of beryllium copper Casting Roller set |
| CN108723091A (en) * | 2018-06-25 | 2018-11-02 | 湖北金标通用轧辊有限公司 | A kind of chemical industry high-chromium iron-cast roller and preparation method thereof |
| CN108754299A (en) * | 2018-06-25 | 2018-11-06 | 湖北金标通用轧辊有限公司 | A kind of high-chromium iron-cast roller and preparation method thereof of tungsten Metamorphism treatment |
| CN108796353A (en) * | 2018-06-25 | 2018-11-13 | 湖北金标通用轧辊有限公司 | A kind of high-chromium iron-cast roller and preparation method thereof |
| CN108723091B (en) * | 2018-06-25 | 2020-01-14 | 湖北金标通用轧辊有限公司 | High-chromium cast iron roller for chemical industry and preparation method thereof |
| CN115058564A (en) * | 2022-05-25 | 2022-09-16 | 新疆八一钢铁股份有限公司 | Manufacturing method of withdrawal and straightening machine roller |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1138005C (en) | 2004-02-11 |
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