CN102152058A - Surfacing repair method for large cold-rolled supporting roll - Google Patents
Surfacing repair method for large cold-rolled supporting roll Download PDFInfo
- Publication number
- CN102152058A CN102152058A CN 201110120326 CN201110120326A CN102152058A CN 102152058 A CN102152058 A CN 102152058A CN 201110120326 CN201110120326 CN 201110120326 CN 201110120326 A CN201110120326 A CN 201110120326A CN 102152058 A CN102152058 A CN 102152058A
- Authority
- CN
- China
- Prior art keywords
- welding
- built
- temperature
- roll
- roller stock
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Images
Landscapes
- Reduction Rolling/Reduction Stand/Operation Of Reduction Machine (AREA)
- Arc Welding In General (AREA)
Abstract
The invention provides a surfacing repair method for a large cold-rolled supporting roll, comprising the following steps of: turning processing before welding; nondestructive flaw detection; preheating before welding; surfacing of a diluting layer; surfacing of a supporting layer; surfacing of a working layer; distressing heat treatment in the middle of welding; final heat treatment after welding; turning processing of a roll body; nondestructive flaw detection of a finished product; and coating and packaging of the finished product. The surfacing repair method has the effects that the large cold-rolled supporting roll normally scrapped can be repaired for reutilization, so that the production cost of a steel rolling enterprise is greatly reduced; the comprehensive performance and the service life of the repaired large cold-rolled supporting roll are superior to those of the bought integral forged steel large cold-rolled supporting roll; and the surfacing repair method is beneficial to achieving the purposes of repairing the old and utilizing the waste, improving the quality and reducing the consumption, saving the energy and reducing the emission and being green and environmentally-friendly.
Description
Technical field
The invention belongs to metallurgical machinery manufacturing technology field, specifically establishing what relate to is a kind of build-up welding repair method of large-scale cold rolling backing roll.
Background technology
The large-scale cold rolling backing roll is the important expendable rolling tool on the large-scale cold rolling unit, and cold-rolling support roll its diameter in rolled steel may wear to certain size or peels off to lose efficacy because of the roll surface large tracts of land to be scrapped.Large-scale cold rolling steel mill all will consume a large amount of such rolls every year, its manufacturing process complexity, and the manufacturing cycle is long, costs an arm and a leg, and every acquisition price is more than 1,000,000 yuan.The quality of roll quality not only directly influences its service life, and quality, production efficiency and the production cost of steel all had a significant impact.
The large-scale cold rolling backing roll that adopts overlaying method to repair, its rehabilitation cost has only the 25%-30% that newly purchases the backing roll cost, and can repeat to repair 3-4 time, can improve roll service life simultaneously, and valuable non-ferrous metal is rationally used and saved to reduction roll consumption amount.Can improve the productivity effect and the product quality of milling train, be a kind of very effective Technological Economy measure.Therefore, large-scale cold rolling strip-mill strip backing roll is carried out the built-up welding reparation, further improve and seem very important and necessary in its performance and service life.
Summary of the invention
The build-up welding repair process method that the purpose of this invention is to provide a kind of large-scale cold rolling backing roll, be beneficial to reach written-off large-scale cold rolling backing roll is repeated to repair manufacturing again, it is extraordinary that to have solved the large-scale cold rolling backing roll manufacturing cycle long, service life is short, the combination property instability, problems such as acquisition cost height.Upgrading consumption reduction, the target of environmental protection have been realized repairing the old and utilizing scraps.
For achieving the above object, the technical solution used in the present invention provides a kind of build-up welding repair method of large-scale cold rolling backing roll, and this restorative procedure includes following steps: turning processing before the weldering; Nondestructive inspection detects; Weld preheating; The built-up welding diluent zone; The built-up welding supporting course; The built-up welding working lining; Middle destressing heat treatment; The final heat treatment of postwelding; Body of roll turning processing; The finished product nondestructive inspection detects; Finished product oiling packing.
Effect of the present invention is to adopt this method can be with the large-scale cold rolling backing roll repairing and reusing of normal abandonment, reduce the production cost of Metallurgical Enterprise significantly, its combination property of large-scale cold rolling backing roll through repairing and the whole forged steel large-scale cold rolling backing roll that is better than newly purchasing service life are beneficial to energy-saving and cost-reducing.
Description of drawings
Fig. 1 is a build-up welding repair method flow chart of the present invention.
The specific embodiment
Build-up welding repair method to large-scale cold rolling backing roll of the present invention is illustrated in conjunction with the accompanying drawings.
The build-up welding repair method of large-scale cold rolling backing roll of the present invention, this restorative procedure includes following steps:
(1), turning processing before the weldering
The roll surface defective of backing roll and fatigue layer are removed, and turning is to the requirement that guarantees overlay cladding thickness, the roll surface local defect adopts turning or abrasive machine detail sanding, guarantees roll surface defective and fatigue layer are all removed, and makes standby roller stock;
(2), nondestructive inspection detects
Roller stock to turning carries out ultrasound examination, checks whether fatigue layer is removed fully and the body of roll is given birth to crack defect in whether existing, if defectiveness still then need continue turning, removes a hidden danger; If ultrasonic inspection goes out roller stock serious internal injury is arranged, then do not continue to carry out again the built-up welding repair of this roller stock;
(3), weld preheating
The main purpose of preheating is to reduce the cooling velocity of deposited metal and heat affected area in the weld deposit process, reduces tendency of hardenability and also reduces welding stress, prevents that roller stock mother metal and resurfacing welding material from taking place to cause the crackle generation because of transformation stress in weld deposit process.Definite need of preheat temperature are according to the carbon content of mother metal and resurfacing welding material and alloy content and decide.
With the roller stock to be welded preheating in the electric furnace that is equipped with band automatic temperature measurement, temperature-controlling system of packing into, programming rate looks room temperature and the roller stock roller directly is 50-80 ℃/h, and the preheating insulation temperature is 320 ℃-350 ℃, and constant temperature begins built-up welding after 10 hours;
(4), bead-welding technology requirement
On large-scale roller automatic submerged-arc surfacing equipment, carry out the built-up welding of multimachine head monofilament circumferencial direction continuous helical automatic submerged-arc, weld deposit process must guarantee continuous built-up welding, do not allow to stop weldering midway, when stopping welding as fortuitous event, (3) preheat temperature require to heat up and insulation set by step, to guarantee the uniformity of hardness between each overlay cladding, makes welding bead position between each overlay cladding 1/2 weld width that staggers mutually during built-up welding;
Before the built-up welding, welding wire that resurfacing welding material is selected for use and adapted sintered flux cure respectively, and to remove moisture content, selecting welding wire for use is the flux-cored wire of Φ 4.0mm, and the sintered flux model is 107 sintered fluxes, technological requirement:
Welding current: 450A
Weldingvoltage: 30V
Speed of welding: 400-500mm/min linear velocity
The welding bead overlap joint: the lap width of adjacent overlay cladding welding bead must guarantee that welding bead is smooth smooth greater than 45%
Electrode extension: 30-35mm
Welding bead interlayer temperature: 300-320 ℃;
(5), built-up welding diluent zone
The built-up welding diluent zone, just bottom its objective is and dilute too high carbon content in the backing roll mother metal in the built-up welding mixing portion of resurfacing welding material and backing roll mother metal, improves the toughness of joint portion, falls end fragility.Diluent zone needs built-up welding two-layer, is not arrived in the working lining of follow-up built-up welding by fused to guarantee carbon content too high in the backing roll mother metal.
Diluent zone hardfacing alloy chemical analysis is by weight percentage:
C 0.15-0.35
Si 0.50-1.20
Mn 1.6-2.2
P ≤0.30
S ≤0.30
Cr 0.80-1.50
Ni 0.70-1.50
Mo 0.40-1.00
All the other are Fe;
(6), built-up welding supporting course
The built-up welding supporting course, intermediate layer just, the performance that its objective is the metallurgical melting alloy that makes built-up welding working layer and built-up welding diluent zone material further improves, and makes the working lining hardfacing alloy can bear the working environment of big load alternate stress and intermetallic wearing and tearing.
Built-up welding one deck supporting course on diluent zone makes the toughness and the strength matching of diluent zone and working lining joint portion, falls end fragility;
Supporting course hardfacing alloy chemical analysis is by weight percentage:
C 0.30-0.45
Si 0.10-0.40
Mn 1.2-2.0
P ≤0.30
S ≤0.30
Cr 2.40-3.50
Ni 0.60-1.50
Mo 0.40-1.00
All the other are Fe;
(7), built-up welding working lining
At the requirement of unlike materials such as primitive component 9Cr2Mo, the 75CrMo of large-scale cold rolling backing roll and mill milling characteristic, we select Cr-Ni-Mo-V for use is that the good submerged arc overlay welding of wearability, obdurability and contact resistance fatigability carries out the built-up welding reparation with solder wire material as working lining.Body of roll working lining deposited metal matrix is designed to the good single low-carbon (LC) returning fire plate strip martensitic structure with high strength, high tenacity and high-wearing feature of comprehensive mechanical performance, avoid producing thick acicular martensitic structure, simultaneously the disperse evenly tiny alloy carbide that distributing on matrix.
Working lining hardfacing alloy chemical analysis is by weight percentage:
C 0.36-0.45
Si 0.10-0.40
Mn 1.50-2.00
P ≤0.30
S ≤0.30
Cr 5.40-6.50
Ni 2.60-3.50
Mo 1.80-2.50
V 0.40-0.90
All the other are Fe;
(8), middle destressing heat treatment
Because the built-up welding thickness of large-scale cold rolling backing roll is bigger, the thickest 50-80mm that reaches, if the one-time continuous built-up welding is finished, to make deposited metal produce very large transformation stress and welding stress, the existence of this cumulative stress, to increase the tendency that the built-up welding backing roll cracks greatly, the backing roll cracking will take place when serious.Therefore when hardfacing alloy thickness reaches 25mm-30mm, must carry out centre destressing heat treatment, to reduce or to eliminate and weld cumulative stress.The destressing heat treatment temperature is controlled at 450-500 ℃, and the time is then determined with built-up welding thickness and roller stock diameter.
(9), the final heat treatment of postwelding
The main purpose of post weld heat treatment is for improving the postwelding tissue and eliminating welding stress.The post weld heat treatment of built-up welding reparation backing roll should be carried out in the heat treatment electric furnace of special use, requires the interior temperature homogeneity of stove good, and temperature measuring is accurate, and the temperature control process is accurate.
After the operation of roller stock built-up welding working lining finishes, the backing roll of postwelding is carried out temper in the heat treatment electric furnace, temperature is 480-550 ℃, and programming rate looks room temperature and the roller stock roller directly is 50-80 ℃/h, and is even to guarantee roller stock built-up welding working lining temperature; Temperature retention time 10-15 hour.Cool to the furnace below 50 ℃ and come out of the stove, and in still air, be cooled to room temperature.
(10), body of roll turning processing
To carry out turning processing through the backing roll of step (9) by drawing;
(11), the finished product nondestructive inspection detects
Body of roll overlay cladding through the backing roll of step (10) processing is carried out ultrasound examination, confirm the inner no sand holes of built-up welding, pore, the defective of field trash etc.;
(12), finished product oiling packing.
Claims (1)
1. the build-up welding repair method of a large-scale cold rolling backing roll, this restorative procedure includes following steps:
(1), turning processing before the weldering
The roll surface defective of backing roll and fatigue layer are removed, and with the turning of backing roll barrel diameter to the requirement that guarantees overlay cladding thickness, the roll surface local defect adopts turning or abrasive machine detail sanding, guarantees roll surface defective and fatigue layer are all removed, and makes and welds roller stock fully;
(2), nondestructive inspection detects
Roller stock to turning carries out ultrasound examination, checks whether fatigue layer is thoroughly removed and the body of roll is given birth to crack defect in whether existing, if defectiveness still then need continue turning, removes a hidden danger; If ultrasonic inspection goes out roller stock serious internal injury is arranged, then can not carry out the built-up welding repair of this roller stock;
(3), weld preheating
Preheat temperature preestablishes according to the carbon content and the alloy content of roller stock mother metal and resurfacing welding material, with the roller stock to be welded preheating in the electric furnace that is equipped with band automatic temperature measurement, temperature-controlling system of packing into, programming rate looks room temperature and the roller stock roller directly is 50-80 ℃/h, the preheating insulation temperature is 320 ℃-350 ℃, and constant temperature began built-up welding after 10 hours;
(4), bead-welding technology requirement
On large-scale roller automatic submerged-arc surfacing equipment, carry out the built-up welding of multimachine head monofilament circumferencial direction continuous helical automatic submerged-arc, weld deposit process must guarantee continuous built-up welding, do not allow to stop weldering midway, when stopping welding as fortuitous event, (3) preheat temperature require to heat up and insulation set by step, to guarantee the uniformity of hardness between each overlay cladding, makes welding bead position between each overlay cladding 1/2 weld width that staggers mutually during built-up welding;
Before the built-up welding, the welding wire of selecting for use and the sintered flux of adapted cure respectively, and to remove moisture content, selecting welding wire for use is the flux-cored wire of Φ 4.0mm, and the sintered flux model is 107 sintered fluxes, technological requirement:
Welding current: 450A
Weldingvoltage: 30V
Speed of welding: 400-500mm/min linear velocity
The welding bead overlap joint: the lap width of adjacent overlay cladding welding bead must guarantee the smooth smooth electrode extension of welding bead: 30-35mm greater than 45%
Welding bead interlayer temperature: 300-320 ℃;
(5), built-up welding diluent zone
The two-layer diluent zone of built-up welding on roller stock is not arrived in the working lining of follow-up built-up welding by fused to guarantee carbon content too high in the roller stock mother metal earlier.
Diluent zone hardfacing alloy chemical analysis is by weight percentage:
C 0.15-0.35
Si 0.50-1.20
Mn 1.6-2.2
P ≤0.30
S ≤0.30
Cr 0.80-1.50
Ni 0.70-1.50
Mo 0.40-1.00
All the other are Fe;
(6), built-up welding supporting course
Built-up welding one deck supporting course on diluent zone makes the toughness and the strength matching of diluent zone and working lining joint portion, falls end fragility;
Supporting course hardfacing alloy chemical analysis is by weight percentage:
C 0.30-0.45
Si 0.10-0.40
Mn 1.2-2.0
P ≤0.30
S ≤0.30
Cr 2.40-3.50
Ni 0.60-1.50
Mo 0.40-1.00
All the other are Fe;
(7), built-up welding working lining
Continuous built-up welding working lining on supporting course is to satisfy the needs of backing roll barrel diameter and serviceability.
Working lining hardfacing alloy chemical analysis is by weight percentage:
C 0.36-0.45
Si 0.10-0.40
Mn 1.50-2.00
P ≤0.30
S ≤0.30
Cr 5.40-6.50
Ni 2.60-3.50
Mo 1.80-2.50
V 0.40-0.90
All the other are Fe;
(8), middle destressing heat treatment
In the process of built-up welding working lining, must carry out centre destressing heat treatment, to reduce or to eliminate and weld cumulative stress, behind every built-up welding working lining 25-35mm, destressing heat treatment in the middle of carrying out once, the destressing heat treatment temperature is controlled at 450-500 ℃, and the time is then determined with built-up welding thickness and roller stock diameter;
(9), the final heat treatment of postwelding
After the operation of roller stock built-up welding working lining finishes, backing roll is carried out temper in the heat treatment electric furnace, temperature is 480-550 ℃, and programming rate looks room temperature and the roller stock roller directly is 50-80 ℃/h, guarantees that roller stock built-up welding working lining temperature is even; Temperature retention time 10-15 hour.Cool to the furnace below 50 ℃ and come out of the stove, and in still air, be cooled to room temperature;
(10), body of roll turning processing
To carry out turning processing through the backing roll of step (9) by drawing;
(11), the finished product nondestructive inspection detects
Body of roll overlay cladding through the backing roll of step (10) processing is carried out ultrasound examination, confirm the inner no sand holes of built-up welding, pore, the defective of field trash;
(12), finished product oiling packing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101203264A CN102152058B (en) | 2011-05-11 | 2011-05-11 | Surfacing repair method for large cold-rolled supporting roll |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011101203264A CN102152058B (en) | 2011-05-11 | 2011-05-11 | Surfacing repair method for large cold-rolled supporting roll |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102152058A true CN102152058A (en) | 2011-08-17 |
| CN102152058B CN102152058B (en) | 2012-08-08 |
Family
ID=44433906
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011101203264A Expired - Fee Related CN102152058B (en) | 2011-05-11 | 2011-05-11 | Surfacing repair method for large cold-rolled supporting roll |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102152058B (en) |
Cited By (49)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357778A (en) * | 2011-09-22 | 2012-02-22 | 宁波中超机器有限公司 | Manufacturing method of pulling straightening roller |
| CN102441760A (en) * | 2011-11-07 | 2012-05-09 | 山西鼎荣冷弯型钢有限公司 | Cold-bending roller welding repair method |
| CN102672437A (en) * | 2012-06-04 | 2012-09-19 | 无锡市三方轧辊有限公司 | Processing technology for recycling hot-rolled aluminum plate mill roll |
| CN102744554A (en) * | 2012-07-19 | 2012-10-24 | 盐城市成功机械制造有限公司 | Remanufacturing technology of waste rollers in iron and steel industry |
| CN103223568A (en) * | 2012-01-30 | 2013-07-31 | 宝山钢铁股份有限公司 | Boss back abrasion repair method for bending roll of heavy plate mill |
| CN103350316A (en) * | 2013-07-15 | 2013-10-16 | 莱芜钢铁集团有限公司 | Method for roll skin bead weld repair of 4PG 900*700 four-roll crusher |
| CN103418923A (en) * | 2013-08-30 | 2013-12-04 | 北京工业大学 | Overlaying repair method for worn 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 |
| CN103551755A (en) * | 2013-10-31 | 2014-02-05 | 常州大学 | Corrosion crack welding restoration method and material for regenerator |
| CN103658928A (en) * | 2012-09-22 | 2014-03-26 | 宝山钢铁股份有限公司 | Surface overlaying method for rack roller for wide and thick plates |
| CN104070269A (en) * | 2014-07-26 | 2014-10-01 | 河北瑞兆激光再制造技术有限公司 | Repair method for worn central disc of main exhauster in sintering plant |
| 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 |
| CN104439880A (en) * | 2014-11-07 | 2015-03-25 | 武汉钢铁(集团)公司 | Method for repairing pyramidal shaft of cold rolling coiler mandrel |
| CN104439881A (en) * | 2014-11-19 | 2015-03-25 | 首钢总公司 | Laser cladding and on-line machining repair method for roughing mill housing roller positioning groove |
| CN105057846A (en) * | 2015-07-09 | 2015-11-18 | 苏州优霹耐磨复合材料有限公司 | Grinding roll built-up welding technology |
| CN105436664A (en) * | 2015-10-27 | 2016-03-30 | 张荣斌 | Automatic double-overlaying control method for abraded large roller shaft |
| CN105441934A (en) * | 2014-08-12 | 2016-03-30 | 宝山钢铁股份有限公司 | Method for welding wearing-resistant layer by laser cladding on roller way roll surface |
| CN105436663A (en) * | 2015-10-27 | 2016-03-30 | 张荣斌 | Automatic double-overlaying control system and method for abraded large roller shaft |
| CN105583543A (en) * | 2016-02-23 | 2016-05-18 | 鞍钢实业集团冶金机械有限公司 | Repairing method for R roots of gear spindle sleeve |
| WO2016110159A1 (en) * | 2015-01-09 | 2016-07-14 | 江苏江海机床集团有限公司 | Method for welding and repairing rack crack of four-roll plate bending machine |
| CN106378511A (en) * | 2016-11-08 | 2017-02-08 | 甘肃酒钢集团西部重工股份有限公司 | Surfacing welding process for wear-resistant grinding roller |
| CN106513950A (en) * | 2016-12-05 | 2017-03-22 | 安徽兴林机械集团有限公司 | Grinding roller rotating surfacing process |
| CN106891131A (en) * | 2016-12-29 | 2017-06-27 | 常熟市常轴轴承有限公司 | The surface repairing technique of high abrasion seal |
| CN106925939A (en) * | 2015-12-29 | 2017-07-07 | 莱芜钢铁集团有限公司 | The online prosthetic device and online restorative procedure of a kind of bag cage shoe axle |
| CN107052701A (en) * | 2017-03-31 | 2017-08-18 | 安徽再制造工程设计中心有限公司 | A kind of roll overlaying technique |
| 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 |
| CN107335939A (en) * | 2017-05-12 | 2017-11-10 | 中信重工机械股份有限公司 | The big thickness Bead weld repair layer of large-scale 70Cr3Mo backing rolls and renovation technique |
| CN107717259A (en) * | 2017-09-25 | 2018-02-23 | 中冶建筑研究总院有限公司 | Composite manufacturing by hard surfacing pinch roll, the capping resurfacing welding material of Wrapping Roll roll surface and technique |
| CN107755966A (en) * | 2016-08-18 | 2018-03-06 | 合肥东方节能科技股份有限公司 | A kind of renovation technique of milling train loop back roll |
| CN108655538A (en) * | 2018-05-08 | 2018-10-16 | 大唐洛阳首阳山发电有限责任公司 | The overlaying method of MPS-200 Roller of Coal Grinder, lining tile |
| CN108817602A (en) * | 2018-07-21 | 2018-11-16 | 马鞍山晨鑫机械制造有限公司 | The automatic surfacing restorative procedure of the Centrifugal rolling of supercentrifuge |
| CN108857263A (en) * | 2018-07-21 | 2018-11-23 | 马鞍山晨鑫机械制造有限公司 | A kind of Centrifugal rolling of the supercentrifuge of automatic surfacing reparation |
| CN108971883A (en) * | 2018-09-30 | 2018-12-11 | 上海吴泾电力工程有限责任公司 | Suitable for cheating the field repairing method of cavity space |
| CN109014654A (en) * | 2018-07-16 | 2018-12-18 | 中冶建筑研究总院有限公司 | A kind of compound (again) manufactures Continuous Casting Rolls submerged-arc overlaying welding flux-cored wire and technique |
| CN110814633A (en) * | 2019-10-30 | 2020-02-21 | 山东成通锻造有限公司 | Welding repair process for large-scale column nest and column cap mold |
| CN111054996A (en) * | 2020-01-06 | 2020-04-24 | 邯郸市永固冶金备件有限公司 | Roll fish scale pattern accurate hole pattern approaching surfacing repair process |
| CN111055078A (en) * | 2019-12-05 | 2020-04-24 | 邯郸钢铁集团有限责任公司 | Repairing process of back-up roll of cold-rolled plate rolling mill |
| CN111843130A (en) * | 2020-06-23 | 2020-10-30 | 苏州优霹耐磨复合材料有限公司 | Surfacing process of high-carbon high-alloy roller |
| CN112139756A (en) * | 2020-09-29 | 2020-12-29 | 南京合泰机械制造有限公司 | Large-thickness surfacing repair layer of large 70Cr3Mo supporting roller and repair process |
| CN112267013A (en) * | 2020-09-16 | 2021-01-26 | 山西富禄昌机械设备有限公司 | Supporting roller flow heat treatment process based on cold rolling and steps |
| CN112570980A (en) * | 2020-12-03 | 2021-03-30 | 四川国鑫机械制造有限公司 | Repair strengthening method for 310B-shaped steel roller |
| CN112935705A (en) * | 2021-03-23 | 2021-06-11 | 中国能源建设集团西北电力建设工程有限公司 | Metal surface welding repair process |
| CN113275706A (en) * | 2021-06-11 | 2021-08-20 | 安徽玉龙电力科技有限公司 | Online surfacing method for main shaft of coal mill |
| CN114131142A (en) * | 2021-12-09 | 2022-03-04 | 山西太钢不锈钢股份有限公司 | Spring steel roll crack welding repair method |
| CN115026512A (en) * | 2022-06-16 | 2022-09-09 | 日照钢铁控股集团有限公司 | Hard-face surfacing repair method for wrapper roller |
| CN115283942A (en) * | 2022-06-28 | 2022-11-04 | 重庆大学 | Roller manufacturing and repairing method |
| CN115415737A (en) * | 2022-06-29 | 2022-12-02 | 江苏华之益机械有限公司 | Large-area corrosion-resistant surfacing process for pipeline |
| JP7408877B1 (en) | 2023-02-21 | 2024-01-05 | 東方電気（広州）重型機器有限公司 | Wear-resistant overlay welding method for annular high-temperature-resistant stainless steel and intermediate heat exchanger manufactured by the method |
| CN117399895A (en) * | 2023-12-13 | 2024-01-16 | 呼伦贝尔金新化工有限公司 | Online shutdown repair method for cracking of inner surface surfacing layer of flange on BGL gasifier |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7169480B2 (en) * | 2004-02-02 | 2007-01-30 | Dai-Ichi High Frequency Co., Ltd. | Clad pipe |
| CN101003104A (en) * | 2006-09-22 | 2007-07-25 | 攀钢集团钢城企业总公司协力公司 | Built up welding technique of restoring roller for shape bar |
| CN101804494A (en) * | 2010-03-31 | 2010-08-18 | 哈尔滨汽轮机厂有限责任公司 | Overlaying process for high-medium pressure rotor thrust disk made of ultra supercritical 12% Cr steel |
| CN101837501A (en) * | 2010-05-20 | 2010-09-22 | 哈尔滨汽轮机厂有限责任公司 | Surfacing method of 12-percent Cr steel high and middle pressure rotor journal of ultra supercritical steam turbine |
-
2011
- 2011-05-11 CN CN2011101203264A patent/CN102152058B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7169480B2 (en) * | 2004-02-02 | 2007-01-30 | Dai-Ichi High Frequency Co., Ltd. | Clad pipe |
| CN101003104A (en) * | 2006-09-22 | 2007-07-25 | 攀钢集团钢城企业总公司协力公司 | Built up welding technique of restoring roller for shape bar |
| CN101804494A (en) * | 2010-03-31 | 2010-08-18 | 哈尔滨汽轮机厂有限责任公司 | Overlaying process for high-medium pressure rotor thrust disk made of ultra supercritical 12% Cr steel |
| CN101837501A (en) * | 2010-05-20 | 2010-09-22 | 哈尔滨汽轮机厂有限责任公司 | Surfacing method of 12-percent Cr steel high and middle pressure rotor journal of ultra supercritical steam turbine |
Cited By (65)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102357778B (en) * | 2011-09-22 | 2013-12-18 | 宁波中超机器有限公司 | Manufacturing method of pulling straightening roller |
| CN102357778A (en) * | 2011-09-22 | 2012-02-22 | 宁波中超机器有限公司 | Manufacturing method of pulling straightening roller |
| CN102441760A (en) * | 2011-11-07 | 2012-05-09 | 山西鼎荣冷弯型钢有限公司 | Cold-bending roller welding repair method |
| CN102441760B (en) * | 2011-11-07 | 2015-01-28 | 山西鼎荣冷弯型钢有限公司 | Cold-bending roller welding repair method |
| CN103223568A (en) * | 2012-01-30 | 2013-07-31 | 宝山钢铁股份有限公司 | Boss back abrasion repair method for bending roll of heavy plate mill |
| CN103223568B (en) * | 2012-01-30 | 2016-06-01 | 宝山钢铁股份有限公司 | Heavy plate mill roller boss back side method of worn |
| CN102672437B (en) * | 2012-06-04 | 2014-07-30 | 无锡市三方轧辊有限公司 | Processing technology for recycling hot-rolled aluminum plate mill roll |
| CN102672437A (en) * | 2012-06-04 | 2012-09-19 | 无锡市三方轧辊有限公司 | Processing technology for recycling hot-rolled aluminum plate mill roll |
| CN102744554A (en) * | 2012-07-19 | 2012-10-24 | 盐城市成功机械制造有限公司 | Remanufacturing technology of waste rollers in iron and steel industry |
| CN103658928B (en) * | 2012-09-22 | 2016-01-27 | 宝山钢铁股份有限公司 | A kind of Wide and Thick Slab breast roll surface overlaying method |
| CN103658928A (en) * | 2012-09-22 | 2014-03-26 | 宝山钢铁股份有限公司 | Surface overlaying method for rack roller for wide and thick plates |
| CN103350316B (en) * | 2013-07-15 | 2016-08-10 | 莱芜钢铁集团有限公司 | A kind of method of 4PG 900 × 700 four-roller crusher roller skin Bead weld repair |
| CN103350316A (en) * | 2013-07-15 | 2013-10-16 | 莱芜钢铁集团有限公司 | Method for roll skin bead weld repair of 4PG 900*700 four-roll crusher |
| CN103418923B (en) * | 2013-08-30 | 2015-06-17 | 北京工业大学 | Overlaying repair method for worn roller |
| CN103418923A (en) * | 2013-08-30 | 2013-12-04 | 北京工业大学 | Overlaying repair method for worn 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 |
| CN103551755A (en) * | 2013-10-31 | 2014-02-05 | 常州大学 | Corrosion crack welding restoration method and material for regenerator |
| 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 |
| CN104070269A (en) * | 2014-07-26 | 2014-10-01 | 河北瑞兆激光再制造技术有限公司 | Repair method for worn central disc of main exhauster in sintering plant |
| CN105441934A (en) * | 2014-08-12 | 2016-03-30 | 宝山钢铁股份有限公司 | Method for welding wearing-resistant layer by laser cladding on roller way roll surface |
| CN105441934B (en) * | 2014-08-12 | 2017-11-28 | 宝山钢铁股份有限公司 | The method that roller-way roll surface laser melting coating welds wearing layer |
| CN104439880A (en) * | 2014-11-07 | 2015-03-25 | 武汉钢铁(集团)公司 | Method for repairing pyramidal shaft of cold rolling coiler mandrel |
| CN104439881A (en) * | 2014-11-19 | 2015-03-25 | 首钢总公司 | Laser cladding and on-line machining repair method for roughing mill housing roller positioning groove |
| WO2016110159A1 (en) * | 2015-01-09 | 2016-07-14 | 江苏江海机床集团有限公司 | Method for welding and repairing rack crack of four-roll plate bending machine |
| CN105057846A (en) * | 2015-07-09 | 2015-11-18 | 苏州优霹耐磨复合材料有限公司 | Grinding roll built-up welding technology |
| CN105436664A (en) * | 2015-10-27 | 2016-03-30 | 张荣斌 | Automatic double-overlaying control method for abraded large roller shaft |
| CN105436663A (en) * | 2015-10-27 | 2016-03-30 | 张荣斌 | Automatic double-overlaying control system and method for abraded large roller shaft |
| CN106925939A (en) * | 2015-12-29 | 2017-07-07 | 莱芜钢铁集团有限公司 | The online prosthetic device and online restorative procedure of a kind of bag cage shoe axle |
| CN105583543A (en) * | 2016-02-23 | 2016-05-18 | 鞍钢实业集团冶金机械有限公司 | Repairing method for R roots of gear spindle sleeve |
| CN107755966A (en) * | 2016-08-18 | 2018-03-06 | 合肥东方节能科技股份有限公司 | A kind of renovation technique of milling train loop back roll |
| CN106378511A (en) * | 2016-11-08 | 2017-02-08 | 甘肃酒钢集团西部重工股份有限公司 | Surfacing welding process for wear-resistant grinding roller |
| CN106378511B (en) * | 2016-11-08 | 2019-02-19 | 甘肃酒钢集团西部重工股份有限公司 | A kind of bead-welding technology of abrasive roller |
| CN106513950A (en) * | 2016-12-05 | 2017-03-22 | 安徽兴林机械集团有限公司 | Grinding roller rotating surfacing process |
| CN106891131A (en) * | 2016-12-29 | 2017-06-27 | 常熟市常轴轴承有限公司 | The surface repairing technique of high abrasion seal |
| 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 |
| CN107052701A (en) * | 2017-03-31 | 2017-08-18 | 安徽再制造工程设计中心有限公司 | A kind of roll overlaying technique |
| CN107335939A (en) * | 2017-05-12 | 2017-11-10 | 中信重工机械股份有限公司 | The big thickness Bead weld repair layer of large-scale 70Cr3Mo backing rolls and renovation technique |
| CN107335939B (en) * | 2017-05-12 | 2019-09-06 | 中信重工机械股份有限公司 | The build-up welding repair process of large-scale 70Cr3Mo backing roll |
| CN107717259A (en) * | 2017-09-25 | 2018-02-23 | 中冶建筑研究总院有限公司 | Composite manufacturing by hard surfacing pinch roll, the capping resurfacing welding material of Wrapping Roll roll surface and technique |
| CN108655538A (en) * | 2018-05-08 | 2018-10-16 | 大唐洛阳首阳山发电有限责任公司 | The overlaying method of MPS-200 Roller of Coal Grinder, lining tile |
| CN109014654B (en) * | 2018-07-16 | 2020-12-11 | 中冶建筑研究总院有限公司 | Submerged arc surfacing flux-cored wire for composite (re) manufacturing continuous casting roller and process |
| CN109014654A (en) * | 2018-07-16 | 2018-12-18 | 中冶建筑研究总院有限公司 | A kind of compound (again) manufactures Continuous Casting Rolls submerged-arc overlaying welding flux-cored wire and technique |
| CN108817602A (en) * | 2018-07-21 | 2018-11-16 | 马鞍山晨鑫机械制造有限公司 | The automatic surfacing restorative procedure of the Centrifugal rolling of supercentrifuge |
| CN108857263A (en) * | 2018-07-21 | 2018-11-23 | 马鞍山晨鑫机械制造有限公司 | A kind of Centrifugal rolling of the supercentrifuge of automatic surfacing reparation |
| CN108971883A (en) * | 2018-09-30 | 2018-12-11 | 上海吴泾电力工程有限责任公司 | Suitable for cheating the field repairing method of cavity space |
| CN110814633A (en) * | 2019-10-30 | 2020-02-21 | 山东成通锻造有限公司 | Welding repair process for large-scale column nest and column cap mold |
| CN110814633B (en) * | 2019-10-30 | 2021-01-05 | 山东成通锻造有限公司 | Welding repair process for large-scale column nest and column cap mold |
| CN111055078A (en) * | 2019-12-05 | 2020-04-24 | 邯郸钢铁集团有限责任公司 | Repairing process of back-up roll of cold-rolled plate rolling mill |
| CN111054996A (en) * | 2020-01-06 | 2020-04-24 | 邯郸市永固冶金备件有限公司 | Roll fish scale pattern accurate hole pattern approaching surfacing repair process |
| CN111843130B (en) * | 2020-06-23 | 2022-04-19 | 苏州优霹耐磨复合材料有限公司 | Surfacing process of high-carbon high-alloy roller |
| CN111843130A (en) * | 2020-06-23 | 2020-10-30 | 苏州优霹耐磨复合材料有限公司 | Surfacing process of high-carbon high-alloy roller |
| CN112267013A (en) * | 2020-09-16 | 2021-01-26 | 山西富禄昌机械设备有限公司 | Supporting roller flow heat treatment process based on cold rolling and steps |
| CN112139756A (en) * | 2020-09-29 | 2020-12-29 | 南京合泰机械制造有限公司 | Large-thickness surfacing repair layer of large 70Cr3Mo supporting roller and repair process |
| CN112570980A (en) * | 2020-12-03 | 2021-03-30 | 四川国鑫机械制造有限公司 | Repair strengthening method for 310B-shaped steel roller |
| CN112935705A (en) * | 2021-03-23 | 2021-06-11 | 中国能源建设集团西北电力建设工程有限公司 | Metal surface welding repair process |
| CN112935705B (en) * | 2021-03-23 | 2022-08-23 | 中国能源建设集团西北电力建设工程有限公司 | Metal surface welding repair process |
| CN113275706A (en) * | 2021-06-11 | 2021-08-20 | 安徽玉龙电力科技有限公司 | Online surfacing method for main shaft of coal mill |
| CN114131142A (en) * | 2021-12-09 | 2022-03-04 | 山西太钢不锈钢股份有限公司 | Spring steel roll crack welding repair method |
| CN115026512A (en) * | 2022-06-16 | 2022-09-09 | 日照钢铁控股集团有限公司 | Hard-face surfacing repair method for wrapper roller |
| CN115283942A (en) * | 2022-06-28 | 2022-11-04 | 重庆大学 | Roller manufacturing and repairing method |
| CN115415737A (en) * | 2022-06-29 | 2022-12-02 | 江苏华之益机械有限公司 | Large-area corrosion-resistant surfacing process for pipeline |
| JP7408877B1 (en) | 2023-02-21 | 2024-01-05 | 東方電気（広州）重型機器有限公司 | Wear-resistant overlay welding method for annular high-temperature-resistant stainless steel and intermediate heat exchanger manufactured by the method |
| CN117399895A (en) * | 2023-12-13 | 2024-01-16 | 呼伦贝尔金新化工有限公司 | Online shutdown repair method for cracking of inner surface surfacing layer of flange on BGL gasifier |
| CN117399895B (en) * | 2023-12-13 | 2024-02-09 | 呼伦贝尔金新化工有限公司 | Online shutdown repair method for cracking of inner surface surfacing layer of flange on BGL gasifier |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102152058B (en) | 2012-08-08 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102152058B (en) | Surfacing repair method for large cold-rolled supporting roll | |
| CN103706921B (en) | Hot-rolling finishing mill backing roll build-up welding repair method | |
| CN101412158B (en) | Flux-cored wire for producing hot rolling coiler wrapper roller by overlaying welding and overlaying welding method | |
| CN105290703B (en) | A kind of method that hot roll is worn with submerged arc overlay welding and laser melting coating reparation | |
| CN102189316B (en) | Submerged-arc welding overlaying repairing method for stainless steel hot rolled delivery roll | |
| CN102528222B (en) | Overlaying-combining-remanufacturing substrate material for Cr4 and Cr5 series of hot rolling work rolls and back-up rolls | |
| CN105436665B (en) | The method of large-scale hot-rolling supporting roll Cr4 built-up welding reconstruction layer and repaired roller | |
| CN109014654B (en) | Submerged arc surfacing flux-cored wire for composite (re) manufacturing continuous casting roller and process | |
| CN104858555A (en) | Pressure pipeline welding process | |
| CN103255412B (en) | High hardness material laser cladding process method for roller work surface | |
| CN107335939B (en) | The build-up welding repair process of large-scale 70Cr3Mo backing roll | |
| CN105499751A (en) | Hardfacing repair process used for hot continuous rolling pinch roll | |
| CN101138819A (en) | High-hardness high carbon alloy hammered steel roll set composite manufacturing technology | |
| CN101658986A (en) | Build-up welding rod for repairing Cr3 roller and build-up welding method | |
| CN109371396A (en) | A kind of big thickness cold roll laser restorative procedure of high-carbon stiff dough flawless | |
| CN110747458A (en) | Method for repairing crankshaft of hot-rolling fixed-width press | |
| CN102658417A (en) | Welding repair technology of casting defect of high-chromium cast iron | |
| CN105215510A (en) | The overlaying method of repair cold-rolling flat support roller | |
| CN101722383A (en) | Flux-cored wire and method for welding cold-rolled work roll by same | |
| CN102069270A (en) | Method for repairing straightening machine supporting roller by flux-cored wire surfacing | |
| CN105297009A (en) | Laser-cladding repairing process for centering roller | |
| CN110052610A (en) | A kind of increasing material manufacturing method of grain roll | |
| CN115007966A (en) | Surface wear-resistant surfacing method for railway rolled steel wheel | |
| KR101273419B1 (en) | Metallic slag pot with new structure and a manufacturing method thereof | |
| CN103658929A (en) | Method for repairing and manufacturing bending roll in surfacing mode |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120808 Termination date: 20130511 |