CN1438088A - Large rooler hard-surface build-up welding repairing method - Google Patents
Large rooler hard-surface build-up welding repairing method Download PDFInfo
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- CN1438088A CN1438088A CN 03116017 CN03116017A CN1438088A CN 1438088 A CN1438088 A CN 1438088A CN 03116017 CN03116017 CN 03116017 CN 03116017 A CN03116017 A CN 03116017A CN 1438088 A CN1438088 A CN 1438088A
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Abstract
The present invention relates to a large roll hard face surfacing welding repairing method, in the concrete, according to a certain process, on the surface of roll three layers of materials, basic layer, transition layer and hard-face layer, are successively deposited, and its surface welding rod copmosition contains C, Cr, Si, Mn, S and Fe, etc. Its repairing effect of large roll is good, its component cost is reduced, and the service life of the large roll can be prolonged.
Description
Technical field
The invention belongs to the Machining Technology field, be specifically related to a kind of large-scale roller hard-face overlaying welding restorative procedure.
Background technology
Metallurgical roller is the vital part on iron and steel enterprise's steel rolling equipment, and the quality of roll quality, the length in service life have influence on the operating rate of milling train, the quality of steel, the maintenance cost of equipment etc., the most directly has influence on the cost of steel.The working surface of roll is subjected to operating pressure, impact, wearing and tearing, heat effect etc., and after two periods working times, roll crown can be damaged.Therefore, need to adopt the surface overlaying technology that it is repaired.
At present, the large-scale roller of some steel plant is all once made new roller, and use was directly scrapped after losing efficacy, and domestic still do not have producer successfully it to be repaired, and no matter mother metal is 50CrMo, or 70Cr
3Mo, all eventually because of the built-up welding cracking, come off or roll breakage face etc., end in failure.
Summary of the invention
The objective of the invention is to propose a kind of method that large-scale roller stiff dough is carried out the built-up welding reparation, to prolong the service life of product.
The large-scale roller hard-face overlaying welding restorative procedure that the present invention proposes is at roller surface built-up welding trilaminate material successively: basal layer, transition zone and hardstanding, and the composition components by weight percentage of this trilaminate material is as follows:
Basal layer:
C?????0.05-0.10％
Cr????0.10-0.20％
Si????0.03-0.07％
Mn????0.08-0.10％
S????????0.01-0.03％
All the other are Fe, and total amount is 100%.
Transition zone:
C?????????0.20-0.30％
Cr????????1.10-1.20％
Si????????1.20-1.50％
Mn????????2.50-3.00％
S?????????1.00-1.50％
All the other are Fe, and total amount is 100%.
Hardstanding:
C?????????0.20-0.30％
Cr????????5.00-6.00％
Si????????0.34-0.50％
Mn????????2.00-3.00％
S?????????0.34-0.52％
All the other are Fe, and total amount is 100%.
Among the present invention, the built-up welding thickness of above-mentioned trilaminate material is generally:
Basal layer 4-6mm
Transition zone 10-20mm
Hardstanding 10-20mm.
Among the present invention, the process conditions of layers of material being carried out built-up welding are as follows:
1, preheating, temperature are 400-420 ℃, are incubated 20-30 hour;
2, built-up welding, speed 600-700mm/ minute, voltage 28-32V, electric current 520-560A;
3, tempering, temperature are 500-550 ℃, are incubated 10-15 hour, cool off with stove then.
Through after the built-up welding, carry out necessary machined.
Through the inventive method large-scale roller stiff dough is repaired, respond well, solved the problem that roll surface part or large tracts of land come off, reduced component costs, improved service life greatly, the present invention is applicable to the reparation of various large-scale hot rolls and cold roll roll surface.
The specific embodiment
Embodiment 1
To the stiff dough reparation of the large-scale hot roll of φ 1560 * 2400mm, use solder wire material, its composition is (%):
| ??C | ??Cr | ??Si | ???Mn | ???S | ???Fe | |
| Basal layer | ??0.05 | ??0.15 | ??0.04 | ???0.08 | ???0.01 | Surplus |
| Transition zone | ??0.20 | ??1.12 | ??1.20 | ???2.50 | ???1.50 | Surplus |
| Hardstanding | ??0.25 | ??5.25 | ??0.41 | ???2.75 | ???0.50 | Surplus |
The bead-welding technology condition is
1, preheating is 400 ℃, is incubated 20 hours;
2, built-up welding speed 600mm/ minute, voltage 30V, electric current 540A;
3, temperature is 545 ℃, is incubated 10 hours.
Embodiment 2
Use solder wire material, its composition is (%):
| ????C | ????Cr | ????Si | ????Mn | ????S | ????Fe | |
| Basal layer | ????0.10 | ????0.20 | ????0.06 | ????0.09 | ????0.03 | Surplus |
| Transition zone | ????0.30 | ????1.20 | ????1.45 | ????3.00 | ????1.20 | Surplus |
| Hardstanding | ????0.26 | ????5.50 | ????0.45 | ????2.43 | ????0.43 | Surplus |
The bead-welding technology condition is
1, preheating is 420 ℃, is incubated 25 hours;
2, built-up welding speed 650mm/ minute, voltage 32V, electric current 555A;
3, temperature is 540 ℃, is incubated 13 hours.
By above-mentioned technology large-scale hot roll stiff dough is repaired, through using in fact machine examination of factory, technical indicator meets the requirements, and life of product greatly prolongs.
Claims (3)
1, a kind of large-scale roller hard-face overlaying welding restorative procedure is characterized in that at roller surface built-up welding trilaminate material successively: basal layer, transition zone and hardstanding, and the composition components by weight percentage of this trilaminate material is as follows:
Basal layer:
C?????0.05-0.10％
Cr????0.10-0.20％
Si????0.03-0.07％
Mn????0.08-0.10％
S?????0.01-0.03％
All the other are Fe, and total amount is 100%;
Transition zone:
C?????0.20-0.30％
Cr????1.10-1.20％
Si????1.20-1.50％
Mn????2.50-3.00％
S?????1.00-1.50％
All the other are Fe, and total amount is 100%;
Hardstanding:
C?????0.20-0.30％
Cr????5.00-6.00％
Si????0.34-0.50％
Mn????2.00-3.00％
S?????0.34-0?52％
All the other are Fe, and total amount is 100%.
2, restorative procedure according to claim 1 is characterized in that the built-up welding thickness of trilaminate material is:
Basal layer 4-6mm
Transition zone 10-20mm
Hardstanding 10-20mm.
3, restorative procedure according to claim 1, the process conditions that it is characterized in that layers of material is carried out built-up welding are as follows:
(1) preheating, temperature are 400-420 ℃, are incubated 20-30 hour;
(2) built-up welding, speed 600-700mm/ minute, voltage 28-32V, electric current 520-560A;
(3) tempering, temperature are 500-550 ℃, are incubated 10-15 hour, cool off with stove then.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116017 CN1199754C (en) | 2003-03-27 | 2003-03-27 | Large rooler hard-surface build-up welding repairing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03116017 CN1199754C (en) | 2003-03-27 | 2003-03-27 | Large rooler hard-surface build-up welding repairing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1438088A true CN1438088A (en) | 2003-08-27 |
| CN1199754C CN1199754C (en) | 2005-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03116017 Expired - Fee Related CN1199754C (en) | 2003-03-27 | 2003-03-27 | Large rooler hard-surface build-up welding repairing method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101293300B (en) * | 2008-06-12 | 2010-06-02 | 上海施威焊接产业有限公司 | Renovation technique for phi2100x3400mm wrought steel support roll |
| CN101947713A (en) * | 2010-09-17 | 2011-01-19 | 江西恒大高新技术股份有限公司 | Roll surface wear-resisting repair technology for cement roller press |
| CN101386115B (en) * | 2008-10-13 | 2011-03-16 | 攀钢集团研究院有限公司 | Flux-cored wire for cold rolling middle roller transient layer built-up welding and preparation method thereof |
| CN102189316A (en) * | 2010-03-11 | 2011-09-21 | 上海一钢机电有限公司 | Submerged-arc welding overlaying repairing method for stainless steel hot rolled delivery roll |
| CN103316918A (en) * | 2013-05-11 | 2013-09-25 | 荆州恒隆汽车零部件制造有限公司 | Novel composite hot roller and manufacturing method thereof |
| CN103706921A (en) * | 2013-12-23 | 2014-04-09 | 鞍钢实业集团冶金机械有限公司 | Build up welding repair method of supporting roller of hot continuous rolling finishing mill |
| CN103831306A (en) * | 2012-11-27 | 2014-06-04 | 南京梅山冶金发展有限公司 | Composite high-temperature alloy material on surface of hot-rolling descaling pinch roll |
| CN104174737A (en) * | 2014-07-25 | 2014-12-03 | 上海梅山科技发展有限公司 | Method for repairing deburring roller of slab deburring machine |
| CN104416293A (en) * | 2013-08-23 | 2015-03-18 | 中冶东方工程技术有限公司秦皇岛研究设计院 | Composite overlaying manufacturing method of casting roller |
| CN104741499A (en) * | 2015-04-13 | 2015-07-01 | 重庆大学 | Sandwich layer forging die and preparation method of forging die sandwich layer surfacing |
| CN109226995A (en) * | 2018-10-31 | 2019-01-18 | 首钢集团有限公司 | A kind of self-shield flux-cored welding wire for overlaying welding |
| CN113001117A (en) * | 2021-03-05 | 2021-06-22 | 海南立磨焊接工程有限公司 | Surfacing repair method for worn roller |
-
2003
- 2003-03-27 CN CN 03116017 patent/CN1199754C/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101293300B (en) * | 2008-06-12 | 2010-06-02 | 上海施威焊接产业有限公司 | Renovation technique for phi2100x3400mm wrought steel support roll |
| CN101386115B (en) * | 2008-10-13 | 2011-03-16 | 攀钢集团研究院有限公司 | Flux-cored wire for cold rolling middle roller transient layer built-up welding and preparation method thereof |
| CN102189316B (en) * | 2010-03-11 | 2013-08-14 | 上海一钢机电有限公司 | Submerged-arc welding overlaying repairing method for stainless steel hot rolled delivery roll |
| CN102189316A (en) * | 2010-03-11 | 2011-09-21 | 上海一钢机电有限公司 | Submerged-arc welding overlaying repairing method for stainless steel hot rolled delivery roll |
| CN101947713B (en) * | 2010-09-17 | 2016-01-06 | 江西恒大高新技术股份有限公司 | A kind of cement roller press roll surface wear-resisting restorative procedure |
| CN101947713A (en) * | 2010-09-17 | 2011-01-19 | 江西恒大高新技术股份有限公司 | Roll surface wear-resisting repair technology for cement roller press |
| CN103831306A (en) * | 2012-11-27 | 2014-06-04 | 南京梅山冶金发展有限公司 | Composite high-temperature alloy material on surface of hot-rolling descaling pinch roll |
| CN103316918A (en) * | 2013-05-11 | 2013-09-25 | 荆州恒隆汽车零部件制造有限公司 | Novel composite hot roller and manufacturing method thereof |
| CN104416293A (en) * | 2013-08-23 | 2015-03-18 | 中冶东方工程技术有限公司秦皇岛研究设计院 | Composite overlaying manufacturing method of casting roller |
| CN103706921A (en) * | 2013-12-23 | 2014-04-09 | 鞍钢实业集团冶金机械有限公司 | Build up welding repair method of supporting roller of hot continuous rolling finishing mill |
| CN103706921B (en) * | 2013-12-23 | 2015-08-12 | 鞍钢实业集团冶金机械有限公司 | Hot-rolling finishing mill backing roll build-up welding repair method |
| CN104174737A (en) * | 2014-07-25 | 2014-12-03 | 上海梅山科技发展有限公司 | Method for repairing deburring roller of slab deburring machine |
| CN104174737B (en) * | 2014-07-25 | 2016-07-06 | 上海梅山科技发展有限公司 | The Burr removing roller restorative procedure of Slab Deburring Machine |
| CN104741499A (en) * | 2015-04-13 | 2015-07-01 | 重庆大学 | Sandwich layer forging die and preparation method of forging die sandwich layer surfacing |
| CN109226995A (en) * | 2018-10-31 | 2019-01-18 | 首钢集团有限公司 | A kind of self-shield flux-cored welding wire for overlaying welding |
| CN113001117A (en) * | 2021-03-05 | 2021-06-22 | 海南立磨焊接工程有限公司 | Surfacing repair method for worn roller |
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| CN1199754C (en) | 2005-05-04 |
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