CN101804709A - Wearing resistant structure of wear resistant piece and repair machining process thereof - Google Patents

Wearing resistant structure of wear resistant piece and repair machining process thereof Download PDF

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Publication number
CN101804709A
CN101804709A CN 201010119771 CN201010119771A CN101804709A CN 101804709 A CN101804709 A CN 101804709A CN 201010119771 CN201010119771 CN 201010119771 CN 201010119771 A CN201010119771 A CN 201010119771A CN 101804709 A CN101804709 A CN 101804709A
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China
Prior art keywords
welding
build
wear
wearing piece
built
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CN 201010119771
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Chinese (zh)
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潘胡江
王雷
吴前松
叶璐
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Anhui Conch Kawasaki Equipment Manufacturing Co ltd
Anhui Conch Cement Co Ltd
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Anhui Conch Kawasaki Equipment Manufacturing Co ltd
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Priority to CN 201010119771 priority Critical patent/CN101804709A/en
Publication of CN101804709A publication Critical patent/CN101804709A/en
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Abstract

The invention discloses a wear resistant structure of a wear resistant piece. In the wear resistant structure, a build-up welding transitional layer(3) is arranged between a wear resistant piece body(1) and a build-up welding wear-resistant layer(2); and the build-up welding transitional layer(3) adopts a build-up welding structure formed by multiple welding passes, and the material forming the build-up welding transitional layer(3) is the same as or similar to that forming the wear resistant piece body(1). The invention also discloses a repair machining process for the wear resistant structure of the wear resistant piece. By adopting the technical scheme, the build-up welding transitional layer and the wear resistant piece body are welded more tightly, and the cost of the wear resistant material is lowered; the conventional mode of eliminating the welding stress by pre-heating is broken, the wear resistant layer of the build-up welding is cracked by the technical means, the stress generated in the build-up welding process is released, and the rejection of blanks due to occurrence of cracks is avoided. The service life and the repair efficiency of the wear resistant piece are effectively improved.

Description

The abrasion-proof structure of wearing piece and repair machining process thereof
Technical field
The invention belongs to the technical field of cement manufacture plant, relate to the abrasion-proof structure of its metal part.Specifically, the present invention relates to a kind of abrasion-proof structure of wearing piece.In addition, the invention still further relates to the repair machining process of the abrasion-proof structure of described wearing piece.
Background technology
In manufacture of cement, large-scale Vertical Mill is the nucleus equipment of grog, raw material preparation and cement grinding system.Because working media is slag, sandstone, lime stone etc., material hardness is very high, and in broken and process of lapping, workpiece such as mill, grinding roller are worn and impact.
Promote the hard-face overlaying welding recovery technique in the middle and later periods nineties both at home and abroad, both saved fund, improved the use mission of workpiece itself again.In the process of built-up welding, distortion and cracking for fear of workpiece prevent scrapping of wearing piece, adopt the mode of preheating to eliminate welding stress usually, but because wearing piece quantity is many, Heavy Weight, the operability of preheating work is relatively poor, inconvenient, and cost is higher.
Summary of the invention
In order to address the above problem, the invention provides a kind of abrasion-proof structure of wearing piece, its objective is the service life and the remediation efficiency that improve wearing piece.
To achieve these goals, the technical scheme taked of the present invention is:
The abrasion-proof structure of this wearing piece provided by the present invention, comprise wearing piece body, build-up wear-resistant layer, the material of described wearing piece body is a common straightcarbon steel, the material of described build-up wear-resistant layer is the hypereutectic high-chromium alloy, described abrasion-proof structure is for being provided with the built-up welding transition zone between wearing piece body and build-up wear-resistant layer, described built-up welding transition zone adopts the built-up welding structure that is made of many welding beads, and its material is identical or close with the material of described wearing piece body.
Described build-up wear-resistant layer is provided with equally distributed segmentation crack.
Second problem that the present invention also solves be, the repair machining process of the abrasion-proof structure of above-mentioned wearing piece is provided, and its goal of the invention is identical with technique scheme, and the technical scheme of described repair machining process is:
Described abrasion-proof structure adopts bead-welding technology, and built-up welding successively goes out built-up welding transition zone and build-up wear-resistant layer; In the process of the described build-up wear-resistant layer of built-up welding, adopt open arc welding air-cooled, carry out air-cooled immediately to the welding bead that just has been welded into; Or set up sprayer unit, to the welding bead that just the has been welded into cooling of spraying immediately; Above-mentioned dual mode makes the build-up wear-resistant layer produce segmentation crack.
Described repair machining process is at first removed the surperficial remaining wearing layer of wearing piece body to be repaired, then at the described built-up welding transition zone of the surface overlaying of wearing piece body, and makes on built-up welding transition zone formation polishing surface.
The present invention adopts technique scheme, adopts the built-up welding transition zone, makes the welding of build-up wear-resistant layer and wearing piece body more firm, reduces the expense of high-abrasive material; Broken tradition and eliminated the mode of welding stress, made the wearing layer of built-up welding segmentation crack occur, discharged the stress that produces in the weld deposit process, avoided blank cracked and cause scrapping by technological means by preheating.Can improve the service life and the remediation efficiency of wearing piece effectively, and technique scheme utilization implements simply, can reduce cost effectively, reduce and change wearing piece downtime.Vertical Mill roller skin is 1.3 times of former foundry goods service life, and the mill liner plate is 2 times of former foundry goods, greatly reduces the operating cost of cement factory, has promoted the development of cement industry.
Description of drawings
Below expressed content of each width of cloth accompanying drawing of this specification and the mark among the figure are briefly explained:
Fig. 1 is the wearing piece sectional structure schematic diagram among the present invention;
Fig. 2 is a structural representation shown in Figure 1;
Be labeled as among the figure:
1, wearing piece body, 2, the build-up wear-resistant layer, 3, the built-up welding transition zone, 4, segmentation crack.
The specific embodiment
Contrast accompanying drawing below, the description by to embodiment is described in further detail the specific embodiment of the present invention, to help those skilled in the art inventive concept of the present invention, technical scheme is had more complete, accurate and deep understanding.
The of the present invention structure expressed as Fig. 1, Fig. 2, the present invention is a kind of abrasion-proof structure and repair machining process thereof of wearing piece, comprise wearing piece body 1, build-up wear-resistant layer 2, the material of described wearing piece body 1 is a common straightcarbon steel, described build-up wear-resistant layer 2 material be the hypereutectic high-chromium alloy.
The core of technical scheme of the present invention is:
As shown in Figure 1, the abrasion-proof structure of this wearing piece provided by the present invention, described abrasion-proof structure is for being provided with built-up welding transition zone 3 between wearing piece body 1 and build-up wear-resistant layer 2, described built-up welding transition zone 3 adopts the built-up welding structure that is made of many welding beads, and its material is identical or close with the material of described wearing piece body 1.
The wearing piece bead-welding technology method that eliminates stress is: described build-up wear-resistant layer 2 is provided with equally distributed segmentation crack 4.
Technique scheme can improve the service life and the remediation efficiency of wearing piece effectively, and technical scheme of the present invention utilization implements simply, can reduce cost effectively, reduces and changes wearing piece downtime.Broken the mode of tradition by preheating elimination welding stress.The type of cooling is simple, cost is lower.
The wearing piece of taking the surperficial recovery scenario of this kind to recover, Vertical Mill roller skin are 1.3 times of former foundry goods service life, and the mill liner plate is 2 times of former foundry goods, greatly reduces the operating cost of cement factory, has promoted the development of cement industry.
The invention provides the repair machining process of the abrasion-proof structure of above-mentioned wearing piece, the technical scheme of described repair machining process is as follows:
Described abrasion-proof structure adopts bead-welding technology, and built-up welding successively goes out built-up welding transition zone 3 and build-up wear-resistant layer 2; In the process of the described build-up wear-resistant layer 2 of built-up welding, adopt open arc welding air-cooled, carry out air-cooled immediately to the welding bead that just has been welded into; Or set up sprayer unit, to the welding bead that just the has been welded into cooling of spraying immediately; Above-mentioned dual mode makes build-up wear-resistant layer 2 produce segmentation crack 4.
At first the surperficial remaining wearing layer of wearing piece to be repaired is removed; then at wearing piece body surface built-up welding one deck built-up welding transition zone 3; resurfacing welding material is identical or close with wearing piece body 1; reach the effect of protection wearing piece body 1; form slicks on wearing piece body 1 surface simultaneously; so that combine with build-up wear-resistant layer 2, the thickness of built-up welding transition zone 3 is decided on the blank blemish.After 3 built-up welding of built-up welding transition zone are finished, change welding wire and begin to carry out the built-up welding of build-up wear-resistant layer 2.
Described repair machining process is at first removed the surperficial remaining wearing layer of wearing piece body 1 to be repaired, then at the described built-up welding transition zone 3 of the surface overlaying of wearing piece body 1, and makes on built-up welding transition zone 3 formation polishing surfaces.
Built-up welding transition zone 3 all adopts the import automatic welder(welding machine) to carry out built-up welding with the built-up welding of build-up wear-resistant layer 2, and relevant parameter is identical with common wearing piece built-up welding.Different is that when built-up welding build-up wear-resistant layer 2, the employing open arc welding is air-cooled, or sets up sprayer unit, makes build-up wear-resistant layer 2 produce be full of cracks, has reached the effect that discharges welding stress.
By surface overlaying one deck build-up wear-resistant layer 2 to the wearing piece grinding roller, reach again the purpose of utilizing, and service life greater than the service time of foundry goods, be widely used at cement industry.In the process of hardfacing, in order to prevent to scrap owing to welding stress causes blank crackle to occur, industry generally adopts the mode of preheating to eliminate welding stress.But this scheme inconvenient operation, and cost height.
At the elimination problem of welding stress, the present invention allows the build-up wear-resistant layer 2 of built-up welding segmentation crack 4 occur by technological means, discharges the stress that produces in the weld deposit process, avoids blank cracked causing scrapping.As for the segmentation crack on the build-up wear-resistant layer 24,, be not affected for using owing to mainly bear compression rolling in the process of build-up wear-resistant layer 2.
In conjunction with the accompanying drawings the present invention has been carried out exemplary description above; obviously specific implementation of the present invention is not subjected to the restriction of aforesaid way; as long as adopted the improvement of the various unsubstantialities that method of the present invention design and technical scheme carry out; or design of the present invention and technical scheme are directly applied to other occasion without improving, all within protection scope of the present invention.

Claims (4)

1. the abrasion-proof structure of a wearing piece, comprise wearing piece body (1), build-up wear-resistant layer (2), the material of described wearing piece body (1) is a common straightcarbon steel, (2 material is the hypereutectic high-chromium alloy to described build-up wear-resistant layer, it is characterized in that: described abrasion-proof structure is for being provided with built-up welding transition zone (3) between wearing piece body (1) and build-up wear-resistant layer (2), described built-up welding transition zone (3) adopts the built-up welding structure that is made of many welding beads, and its material is identical or close with the material of described wearing piece body (1).
2. according to the abrasion-proof structure of the described wearing piece of claim 1, it is characterized in that: described build-up wear-resistant layer (2) is provided with equally distributed segmentation crack (4).
3. the repair machining process that adopts according to the abrasion-proof structure of the described wearing piece of claim 2, it is characterized in that: described abrasion-proof structure adopts bead-welding technology, and built-up welding successively goes out built-up welding transition zone (3) and build-up wear-resistant layer (2); In the process of the described build-up wear-resistant layer of built-up welding (2), adopt open arc welding air-cooled, carry out air-cooled immediately to the welding bead that just has been welded into; Or set up sprayer unit, to the welding bead that just the has been welded into cooling of spraying immediately; Above-mentioned dual mode makes build-up wear-resistant layer (2) produce segmentation crack (4).
4. according to the repair machining process of the abrasion-proof structure of the described wearing piece of claim 3, it is characterized in that: described repair machining process is at first removed the surperficial remaining wearing layer of wearing piece body to be repaired (1), then at the described built-up welding transition zone of the surface overlaying of wearing piece body (1) (3), and make and form the polishing surface at built-up welding transition zone (3).
CN 201010119771 2010-03-08 2010-03-08 Wearing resistant structure of wear resistant piece and repair machining process thereof Pending CN101804709A (en)

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Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102990194A (en) * 2012-11-01 2013-03-27 金钧 Construction method adopting full-automatic open-arc bead-welding in overall welding
CN103639569A (en) * 2013-11-13 2014-03-19 程永科 Method for improving wear resistance of wear-resistant part of extruding machine
CN103881733A (en) * 2014-03-24 2014-06-25 济钢集团有限公司 Wear-resistant corrosion-resistant shell of scraper
CN104520032A (en) * 2012-07-31 2015-04-15 Fl史密斯公司 Method for producing a wear-resistant component
CN104858013A (en) * 2015-05-29 2015-08-26 四川鸿舰重型机械制造有限责任公司 Composite roll skin of four-roll crusher and preparation process for composite roll skin
CN105750693A (en) * 2016-04-29 2016-07-13 山西阳煤化工机械(集团)有限公司 Wear-resistant material surfacing method achieving preheating temperature lowering
CN106964883A (en) * 2017-05-11 2017-07-21 浙江联创焊接技术有限公司 High carbon and chromium open arc welding welding gun Water spraying device
CN107243383A (en) * 2017-08-14 2017-10-13 合肥明英富海生物科技有限公司 A kind of manufacturing process of the compression roller of feed addictive processing pulverizer
CN108994482A (en) * 2018-08-13 2018-12-14 芜湖鼎瀚再制造技术有限公司 A kind of crusher's rollers bead-welding technology
CN108994481A (en) * 2018-08-13 2018-12-14 芜湖鼎瀚再制造技术有限公司 A kind of wear-resistant liner build-up welding repair process
CN110153533A (en) * 2019-05-28 2019-08-23 江阴市文斌机械制造有限公司 Environment-friendly type wear-resistant strip overlaying structure and technique
CN114411156A (en) * 2022-01-21 2022-04-29 中国矿业大学 Preparation method of wear-resistant casting for complex conditions and wear-resistant casting
CN114643094A (en) * 2022-04-25 2022-06-21 酒泉钢铁(集团)有限责任公司 Cone of bimetal cone crusher and surfacing welding method thereof

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CN1068057A (en) * 1991-06-25 1993-01-20 株式会社栗本铁工所 Multi-layer welding process with hard metal
US5441554A (en) * 1993-09-02 1995-08-15 Eutectic Corporation Alloy coating for aluminum bronze parts, such as molds
CN1116574A (en) * 1995-03-24 1996-02-14 鞍山钢铁公司 High-chrome cast iron surfacing welding material and technique
CN1418755A (en) * 2002-12-23 2003-05-21 顿子江 Pile-up welding for repairing toothed wheel and shaft of oil-pumping machine
CN1831180A (en) * 2006-04-06 2006-09-13 威海三盾焊接材料工程有限公司 Abrasion-resistant alloy material
CN101376190A (en) * 2007-08-31 2009-03-04 刘振英 Overlaying welding method and apparatus for transitional powder electric arc deposited abrasion resistance material with additional forming carbides
CN101433990A (en) * 2008-11-19 2009-05-20 南京宝色股份公司 Overlaying welding method of large area carbide alloy of workpiece wear layer
CN101456123A (en) * 2008-12-25 2009-06-17 山东临工工程机械有限公司 Method for realizing abrasion proof treatment to loader hopper and special welding wire thereof
CN201645924U (en) * 2010-03-08 2010-11-24 安徽海螺川崎装备制造有限公司 Wear-resistant structure of wear-resistant part

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1068057A (en) * 1991-06-25 1993-01-20 株式会社栗本铁工所 Multi-layer welding process with hard metal
US5441554A (en) * 1993-09-02 1995-08-15 Eutectic Corporation Alloy coating for aluminum bronze parts, such as molds
CN1116574A (en) * 1995-03-24 1996-02-14 鞍山钢铁公司 High-chrome cast iron surfacing welding material and technique
CN1418755A (en) * 2002-12-23 2003-05-21 顿子江 Pile-up welding for repairing toothed wheel and shaft of oil-pumping machine
CN1831180A (en) * 2006-04-06 2006-09-13 威海三盾焊接材料工程有限公司 Abrasion-resistant alloy material
CN101376190A (en) * 2007-08-31 2009-03-04 刘振英 Overlaying welding method and apparatus for transitional powder electric arc deposited abrasion resistance material with additional forming carbides
CN101433990A (en) * 2008-11-19 2009-05-20 南京宝色股份公司 Overlaying welding method of large area carbide alloy of workpiece wear layer
CN101456123A (en) * 2008-12-25 2009-06-17 山东临工工程机械有限公司 Method for realizing abrasion proof treatment to loader hopper and special welding wire thereof
CN201645924U (en) * 2010-03-08 2010-11-24 安徽海螺川崎装备制造有限公司 Wear-resistant structure of wear-resistant part

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104520032A (en) * 2012-07-31 2015-04-15 Fl史密斯公司 Method for producing a wear-resistant component
CN102990194A (en) * 2012-11-01 2013-03-27 金钧 Construction method adopting full-automatic open-arc bead-welding in overall welding
CN103639569A (en) * 2013-11-13 2014-03-19 程永科 Method for improving wear resistance of wear-resistant part of extruding machine
CN103881733A (en) * 2014-03-24 2014-06-25 济钢集团有限公司 Wear-resistant corrosion-resistant shell of scraper
CN104858013B (en) * 2015-05-29 2017-10-03 四川鸿舰重型机械制造有限责任公司 Four-roller crusher composite roll skin and its manufacture craft
CN104858013A (en) * 2015-05-29 2015-08-26 四川鸿舰重型机械制造有限责任公司 Composite roll skin of four-roll crusher and preparation process for composite roll skin
CN105750693A (en) * 2016-04-29 2016-07-13 山西阳煤化工机械(集团)有限公司 Wear-resistant material surfacing method achieving preheating temperature lowering
CN106964883A (en) * 2017-05-11 2017-07-21 浙江联创焊接技术有限公司 High carbon and chromium open arc welding welding gun Water spraying device
CN107243383A (en) * 2017-08-14 2017-10-13 合肥明英富海生物科技有限公司 A kind of manufacturing process of the compression roller of feed addictive processing pulverizer
CN108994482A (en) * 2018-08-13 2018-12-14 芜湖鼎瀚再制造技术有限公司 A kind of crusher's rollers bead-welding technology
CN108994481A (en) * 2018-08-13 2018-12-14 芜湖鼎瀚再制造技术有限公司 A kind of wear-resistant liner build-up welding repair process
CN110153533A (en) * 2019-05-28 2019-08-23 江阴市文斌机械制造有限公司 Environment-friendly type wear-resistant strip overlaying structure and technique
CN114411156A (en) * 2022-01-21 2022-04-29 中国矿业大学 Preparation method of wear-resistant casting for complex conditions and wear-resistant casting
CN114411156B (en) * 2022-01-21 2024-03-19 中国矿业大学 Preparation method of wear-resistant casting for complex conditions and wear-resistant casting
CN114643094A (en) * 2022-04-25 2022-06-21 酒泉钢铁(集团)有限责任公司 Cone of bimetal cone crusher and surfacing welding method thereof

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Application publication date: 20100818