CN102873498A - Crack restoring process of ball mill slide sliding shoe and connection thereof with barrel - Google Patents
Crack restoring process of ball mill slide sliding shoe and connection thereof with barrel Download PDFInfo
- Publication number
- CN102873498A CN102873498A CN2012103906822A CN201210390682A CN102873498A CN 102873498 A CN102873498 A CN 102873498A CN 2012103906822 A CN2012103906822 A CN 2012103906822A CN 201210390682 A CN201210390682 A CN 201210390682A CN 102873498 A CN102873498 A CN 102873498A
- Authority
- CN
- China
- Prior art keywords
- crack
- ball mill
- groove
- welding
- crawler shoe
- 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
Abstract
The invention discloses a crack restoring process of a ball mill slide sliding shoe and a connection thereof with barrel. The process comprises the following steps of: first, adopting ultrasonic to detect whether a new crack trend exists at a crack; welding and fixing crack-stopping plates at both front and back faces of the two ends of a welding joint crack; with the crack as the central line, dividing into halves towards both sides, grinding the upper and lower faces to form a U-shape groove by using an angular grinding machine; covering both sides of the groove with wet cotton yarns and spraying water unintermittently, and preventing water from flowing into the groove of the welding joint; padding the groove with a filling material with the same strength as the matrix material; welding, and after completing welding, grinding off the fixed crack-stopping plates; and performing detection after restoration. The aim of the invention is to provide the crack restoring process of the ball mill slide sliding shoe and the connection thereof with the barrel, which is simple in operation, high in restoration quality, has no deformation and saves cost.
Description
Technical field
The renovation technique that the present invention relates to a kind of ball mill crawler shoe itself and rupture with the cylindrical shell junction.
Background technology
[0002]The renovation technique of past and present ball mill crawler shoe and the fracture of cylindrical shell junction and crawler shoe fracture itself can't satisfy from technology, material repairs requirement, precision is high, do not allow distortion, normal welding restorative procedure difficulty is large, thermal source is concentrated, the distortion probability is large, loss is large, value reaches 300～4,000,000 yuan, has directly affected production.
Subject matter is:
Crackle and deposited metals material, intensity, temperature, technology, technique, heat distortion are difficult to control, very easily cause the welding temperature of weld seam high, the thermal deformation that causes.In addition improper because of the welding procedure technological measure, cause that the welding stress of metal material itself is large, intensity is uneven, and produce new crackle, aggravated the thermal stress diffusion, unavoidably must cause new distortion, and can't use.
Scrap because solving this technical barrier, every loss is minimum more than 300～4,000,000 yuan, loses hugely, therefore must try every possible means to capture this difficult problem, and be the problem in the illustrated innovation tackling key problem of patented technology technique of the present invention.
Summary of the invention
In order to solve the problems of the technologies described above, the object of the present invention is to provide a kind of simple to operate, repairing quality is high, without distortion, cost-effective ball mill crawler shoe itself and the renovation technique that ruptures with the cylindrical shell junction.
Complete skill scheme of the present invention is that a kind of ball mill crawler shoe itself and the renovation technique that ruptures with the cylindrical shell junction comprise the steps:
1, at first adopt the ultrasonic listening breaking part whether new crack orientation is arranged;
2, on the positive and negative of the two ends of bead crack, all be welded and fixed the crack arrest plate;
3, line centered by crackle is divided equally to both sides, all is U-shaped groove with electric angle grinder grinding upper and lower surface;
4, be covered with wet cotton yarn and uninterrupted trickle in the groove both sides, and prevent that water from flowing in the groove of weld seam;
5, in groove, fill and the equicohesive packing material of basic material;
6, weld, the welding finish after fixedly the crack arrest plate grind off;
7, the detection after the reparation.
As preferred version of the present invention, described fixedly crack arrest plate is welded on and leaves crackle or the end 20-30mm place of the rear docking crackle that breaks.
During with the U-shaped groove of electric angle grinder grinding, stay root face 3-5mm.
Temperature is the 50-70 degree during with the U-shaped groove of electric angle grinder grinding.
Adopt the mode that is covered with wet cotton yarn and uninterrupted trickle to dispel the heat at 80-160mm place, groove both sides.
The ratio of the weld seam bead thickness of alkalescence welding wire and acid welding wire welding is 1:1 during welding.
If crawler shoe fracture itself must be roughly ground after the reparation, finish grind and be ground with oilstone, guarantee its precision.
Therefore the present invention has compared following beneficial effect with present technology:
The renovation technique of a kind of ball mill crawler shoe provided by the invention and the fracture of cylindrical shell junction and crawler shoe fracture itself, dispel the heat with the mode of the wet uninterrupted trickle of cotton yarn in the weld seam both sides, segmentation, symmetrical, staggered mode is welded, avoided the distortion that causes of concentrating because of heat equivalent, it only is 6～100,000 yuan that the renovation technique of ball mill crawler shoe provided by the invention and the fracture of cylindrical shell junction and crawler shoe fracture itself is repaired price, and new part price 300～4,000,000 yuan, only account for about 2～3% of new part price, small investment, instant effect, technique is simple, and is easy to operate, easy to learn, easily grasp, easily promote, technology is novel, and cost is low, and is solid, without distortion, not only saved resource but also reduced the production cost of enterprise for country.Deeply be subjected to user's welcome and favorable comment.
The specific embodiment
The below will describe the present invention in detail by specific embodiment, be used for explaining the present invention in this illustrative examples of the present invention and explanation, but not as a limitation of the invention.
Embodiment 1:
A kind of ball mill crawler shoe of the present embodiment itself and the renovation technique that ruptures with the cylindrical shell junction, the cylindrical shell junction is take the crawler shoe width as 700 millimeters (mm), 600 millimeters of thickness (mm), long 3800 millimeters (mm) of crackle, cylindrical shell circumference overall length is 4600 millimeters (mm), only deposit 800 millimeters (mm), do not break.The thick 80-100 millimeter of crack depth cylindrical shell (mm), crawler shoe thick 300 millimeters (mm) is example, the welding difficulty is very big, and deflection must be strict controlled in 1/10th millimeters, i.e. the error of a hairline.
With the ultrasonic listening breaking part whether new crack orientation being arranged first, is each one of the steel plate of 30 * 100 * 80 millimeters (mm) with specification, is fixed on the two ends of bead crack.Leave crackle or the end 20-30 millimeter of the rear docking of breaking (mm) is located, positive and negative all need be welded and fixed the crack arrest plate, this crack arrest plate is ground off getting final product after to be onstructed the finishing again.
Line centered by crackle is divided equally to both sides, is U-shaped groove with electric angle grinder grinding single face, simultaneously grinding of two sides, and then groove all is up and down U-shaped, is as the criterion with non-scald on hand, and approximately 60～70 ℃ is suitable; Forbid with oxygen cutting (3000～3400 ℃), or carbon arc air gouging cutting (6000～8000 ℃), temperature is high, yielding, has stayed simultaneously the carbonaceous point of infusibility at the groove place.Deposited quality has been caused the negative factor of the large solderability extreme difference of difficulty, therefore do not allowed to adopt.
After the crackle grinding was U-shaped groove, about 80～160mm place in both sides was covered with wet cotton yarn and uninterrupted trickle, and does not allow the inflow of water in the groove of weld seam again, and welding bead can form hydrogen blistering when avoiding welding.Affect welding quality, stay welding hidden danger.
Packing material in the groove must equal strength, be 45 feather weight such as basic material intensity, then with alkalescence knot 507, namely 50 feather weight+alkalescence ties 422, the 42kg level, be weld metal 45 feather weight of distinguishing the flavor of in the welding of the ratio of 1:1,50+42=92,92 ÷ 2=45,45～46 have the surplus of scaling loss, the scaling loss coefficient is 1, can guarantee to be equal to matrix strength, is 45 feather weight.
During welding, must notice that symmetry, staggered, segmentation, the cold mode of speed carry out, be as the criterion with non-scald on hand, avoid causing distortion because of concentrating of thermal energy.
Detection after the reparation:
Be standard by unspoiled position, do the detection of circumference, do an arcograph, press the contact site of arcograph and basic circle, detect with clearance gauge, to be no more than 0.10 millimeter (mm) as standard, detect as outward appearance.Simultaneously with dial gauge by 360 ° of equal portions of circle, namely 60 ° is a basic point, lays dial gauge, each table detect data be reach 1 millimeter (mm) 1/10th with interior i.e.＜0.10 millimeter (mm) 〉, the i.e. diameter of the people hairline.Whether has weld defect with the ultrasonic examination inspection.Detect with hardometer, whether hardness is consistent with the hardness of original matrix, and error should get final product between HB5～10.。
Therefore, the renovation technique of a kind of ball mill crawler shoe provided by the invention and the fracture of cylindrical shell junction and crawler shoe fracture itself, dispel the heat with the mode of the wet uninterrupted trickle of cotton yarn in the weld seam both sides, segmentation, symmetrical, staggered mode is welded, avoided the distortion that causes of concentrating because of heat equivalent, it only is 6～100,000 yuan that the renovation technique of ball mill crawler shoe provided by the invention and the fracture of cylindrical shell junction and crawler shoe fracture itself is repaired price, and new part price 300～4,000,000 yuan, only account for about 2～3% of new part price, small investment, instant effect, technique is simple, easy to operate, easy to learn, easily grasp, easily promote, technology is novel, cost is low, solid, without distortion, not only saved resource but also reduced the production cost of enterprise for country.Deeply be subjected to user's welcome and favorable comment.
The above technical scheme that the embodiment of the invention is provided is described in detail, used specific case herein principle and the embodiment of the embodiment of the invention are set forth, the explanation of above embodiment is only applicable to help to understand the principle of the embodiment of the invention; Simultaneously, for one of ordinary skill in the art, according to the embodiment of the invention, all will change on the specific embodiment and range of application, in sum, this description should not be construed as limitation of the present invention.
Claims (7)
1. a ball mill crawler shoe itself reaches the renovation technique that ruptures with the cylindrical shell junction, it is characterized in that, comprises the steps:
(1), at first adopt the ultrasonic listening breaking part whether new crack orientation is arranged;
(2), on the positive and negative of the two ends of bead crack, all be welded and fixed the crack arrest plate;
(3), centered by crackle line, divide equally to both sides, all be U-shaped groove with electric angle grinder grinding upper and lower surface;
(4), be covered with wet cotton yarn and uninterrupted trickle in the groove both sides, and prevent that water from flowing in the groove of weld seam;
(5), in groove, fill and the equicohesive packing material of basic material;
(6), weld, the welding finish after fixedly the crack arrest plate grind off;
(7), the detection after the reparation.
2. a kind of ball mill crawler shoe itself according to claim 1 reaches the renovation technique that ruptures with the cylindrical shell junction, it is characterized in that, described fixedly crack arrest plate is welded on and leaves crackle or the end 20-30mm place of the rear docking crackle that breaks.
3. a kind of ball mill crawler shoe itself according to claim 1 and 2 reaches the renovation technique that ruptures with the cylindrical shell junction, it is characterized in that, during with the U-shaped groove of electric angle grinder grinding, stays root face 3-5mm.
4. a kind of ball mill crawler shoe itself according to claim 3 reaches the renovation technique that ruptures with the cylindrical shell junction, it is characterized in that, temperature is the 50-70 degree during with the U-shaped groove of electric angle grinder grinding.
5. a kind of ball mill crawler shoe itself according to claim 1 and 2 reaches the renovation technique that ruptures with the cylindrical shell junction, it is characterized in that, adopts the mode that is covered with the also uninterrupted trickle of wet cotton yarn to dispel the heat at 80-160mm place, groove both sides.
6. a kind of ball mill crawler shoe itself according to claim 1 reaches the renovation technique that ruptures with the cylindrical shell junction, it is characterized in that, the ratio of the weld seam bead thickness of alkalescence welding wire and acid welding wire welding is 1:1 during welding.
7. want the renovation technique of 1 described a kind of ball mill crawler shoe itself and cylindrical shell junction failure crack according to right, it is characterized in that: repair crawler shoe fracture itself, must roughly grind after the reparation, finish grind and grind with oilstone, guarantee its precision.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210390682.2A CN102873498B (en) | 2012-10-16 | 2012-10-16 | Crack restoring process of ball mill slide sliding shoe and connection thereof with barrel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210390682.2A CN102873498B (en) | 2012-10-16 | 2012-10-16 | Crack restoring process of ball mill slide sliding shoe and connection thereof with barrel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102873498A true CN102873498A (en) | 2013-01-16 |
| CN102873498B CN102873498B (en) | 2014-10-15 |
Family
ID=47475131
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210390682.2A Active CN102873498B (en) | 2012-10-16 | 2012-10-16 | Crack restoring process of ball mill slide sliding shoe and connection thereof with barrel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102873498B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607862A (en) * | 2015-02-09 | 2015-05-13 | 山东太阳纸业股份有限公司 | Water-cooling repair welding process of rotor of pulp grinder |
| CN106181087A (en) * | 2016-08-01 | 2016-12-07 | 攀钢集团工程技术有限公司 | A kind of air circulation fan impeller is at welding method |
| CN110091119A (en) * | 2019-06-10 | 2019-08-06 | 湖北开明高新科技有限公司 | A kind of 600 tons of stand motor rotor shaft fracture recovery techniques |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106270935A (en) * | 2016-08-22 | 2017-01-04 | 鞍钢重型机械有限责任公司 | A kind of repair method of centrifugal compound roll axle surface defect |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066015A (en) * | 1992-03-23 | 1992-11-11 | 武汉钢铁公司 | The fast welding method of ironcasting |
| US5792393A (en) * | 1997-03-25 | 1998-08-11 | Atlantic Richfield Company | Method of repairing hot refractory linings in high-temperature vessels |
| JP2007107812A (en) * | 2005-10-13 | 2007-04-26 | Hitachi Ltd | Kiln repairing method |
| CN101152689A (en) * | 2006-09-28 | 2008-04-02 | 上海宝冶工程技术公司 | Renovation technology for ladle |
| CN101543926A (en) * | 2009-05-08 | 2009-09-30 | 常州海杰冶金机械制造有限公司 | Overlaying welding technology of ductile cast iron roller |
| CN101905365A (en) * | 2010-08-10 | 2010-12-08 | 首钢总公司 | Welding method of ultra-thick and high-strength water-power steel |
| CN102294568A (en) * | 2011-04-27 | 2011-12-28 | 武汉开明高新科技有限公司 | Process for repairing breakage of rotary kiln tyre/roller |
-
2012
- 2012-10-16 CN CN201210390682.2A patent/CN102873498B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1066015A (en) * | 1992-03-23 | 1992-11-11 | 武汉钢铁公司 | The fast welding method of ironcasting |
| US5792393A (en) * | 1997-03-25 | 1998-08-11 | Atlantic Richfield Company | Method of repairing hot refractory linings in high-temperature vessels |
| JP2007107812A (en) * | 2005-10-13 | 2007-04-26 | Hitachi Ltd | Kiln repairing method |
| CN101152689A (en) * | 2006-09-28 | 2008-04-02 | 上海宝冶工程技术公司 | Renovation technology for ladle |
| CN101543926A (en) * | 2009-05-08 | 2009-09-30 | 常州海杰冶金机械制造有限公司 | Overlaying welding technology of ductile cast iron roller |
| CN101905365A (en) * | 2010-08-10 | 2010-12-08 | 首钢总公司 | Welding method of ultra-thick and high-strength water-power steel |
| CN102294568A (en) * | 2011-04-27 | 2011-12-28 | 武汉开明高新科技有限公司 | Process for repairing breakage of rotary kiln tyre/roller |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104607862A (en) * | 2015-02-09 | 2015-05-13 | 山东太阳纸业股份有限公司 | Water-cooling repair welding process of rotor of pulp grinder |
| CN106181087A (en) * | 2016-08-01 | 2016-12-07 | 攀钢集团工程技术有限公司 | A kind of air circulation fan impeller is at welding method |
| CN106181087B (en) * | 2016-08-01 | 2018-06-22 | 攀钢集团工程技术有限公司 | A kind of air circulation fan impeller is in welding method |
| CN110091119A (en) * | 2019-06-10 | 2019-08-06 | 湖北开明高新科技有限公司 | A kind of 600 tons of stand motor rotor shaft fracture recovery techniques |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102873498B (en) | 2014-10-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102873498B (en) | Crack restoring process of ball mill slide sliding shoe and connection thereof with barrel | |
| CN102581428B (en) | Ultra-thick forge piece and thin plate butt welding process | |
| CN103192224B (en) | Metallurgical continuous casting machine roller repairing method | |
| CN109014518B (en) | Welding device and repairing process for train wheel die holder | |
| CN103481010A (en) | Novel full-automatic online cold welding repairing process for roll squeezers | |
| CN102848049B (en) | Surfacing method of repairing leveling roll with envelope curved surface | |
| CN104139228A (en) | Thick steel plate welding process | |
| CN112935479A (en) | Welding device and repairing process for large wheel fixing table base fracture | |
| CN106425018B (en) | The welding method of LNG low-temperature storage tank 9%Ni steel docking welding bead | |
| CN104526133A (en) | Method for preventing tearing of metal welding layers | |
| CN101176963A (en) | Method for feeding material and group soldering macrotype torpedo tank | |
| CN102350574B (en) | Argon arc welding double-gun butt-welding method | |
| CN105171332A (en) | Method for processing weld cracks in rotor support of tubular hydro-generator | |
| CN103084718B (en) | Welding method for 10CrMo9-10 steel | |
| CN102744496B (en) | Surface overlaying and processing method for pinch roller manufacturing and repairing | |
| CN103182591B (en) | Welding process for ultra-thick high-strength quenched and tempered S500Q steel plates for hydraulic turbine | |
| CN102284772B (en) | Argon arc back sealing welding method for housing of low-pressure water supply heater of third-generation nuclear power steam turbine | |
| CN107186316B (en) | One kind connecing condenser for large-size steam turbine low pressure (LP) cylinder and welds distortion-free welding procedure | |
| CN215238459U (en) | Cracked welding device for base of large wheel fixing table | |
| CN204321394U (en) | A kind of thin plate splicing weld industry device | |
| CN106425041B (en) | Welding method of the LNG low-temperature storage tank 9%Ni steel loop to docking welding bead | |
| CN102785002B (en) | Aluminum bronze build-up welding technology on surface of rolling mill screw-down screw | |
| CN104439649A (en) | 6 mm-thick steel plate tungsten inert gas shielded welding process | |
| CN102962557A (en) | Method for welding balancing air leakage pipe of medium-high pressure outer cylinder in turbine | |
| CN102794540A (en) | Welding repair process for crack of container spreader |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Kaiming Inventor after: Luo Wenbin Inventor after: Miao Jianjun Inventor after: Zhao Hongbo Inventor after: Liu Shangwen Inventor after: Chen Wenhe Inventor after: Li Gan Inventor after: Li Wei Inventor after: Wei Caihe Inventor after: Jiang Jingdong Inventor after: Wu Zhou Inventor after: Zhong Minglei Inventor before: Zhang Kaiming Inventor before: Lin Quanyi Inventor before: Liu Shangwen Inventor before: Chen Wenhe Inventor before: Luo Wenbin Inventor before: Miao Jianjun Inventor before: Min Xianwen |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG KAIMING LIN QUANYI LIU SHANGWEN CHEN WENHE LUO WENBIN MIAO JIANJUN MIN XIANWEN TO: ZHANG KAIMING LIU SHANGWEN CHEN WENHE LI GAN LI WEI WEI CAIHE JIANG JINGDONG WU ZHOU ZHONG MINGLEI LUO WENBIN MIAO JIANJUN ZHAO HONGBO |
|
| C53 | Correction of patent of invention or patent application | ||
| CB03 | Change of inventor or designer information |
Inventor after: Zhang Kaiming Inventor after: Jiang Jingdong Inventor after: Huang Ruijin Inventor after: Wei Caihe Inventor after: Lin Li Inventor after: Zhao Hongbo Inventor after: Tian Weizhou Inventor after: Liu Shangwen Inventor after: Lin Zhusheng Inventor after: Chen Wenhe Inventor after: Luo Wenbin Inventor after: Miao Jianjun Inventor after: Min Xianwen Inventor after: Zhou Suqiang Inventor after: Zheng Guilin Inventor before: Zhang Kaiming Inventor before: Luo Wenbin Inventor before: Miao Jianjun Inventor before: Zhao Hongbo Inventor before: Liu Shangwen Inventor before: Chen Wenhe Inventor before: Li Gan Inventor before: Li Wei Inventor before: Wei Caihe Inventor before: Jiang Jingdong Inventor before: Wu Zhou Inventor before: Zhong Minglei |
|
| COR | Change of bibliographic data |
Free format text: CORRECT: INVENTOR; FROM: ZHANG KAIMING LIU SHANGWEN CHEN WENHE LI GAN LI WEI WEI CAIHE JIANG JINGDONG WU ZHOU ZHONG MINGLEI LUO WENBIN MIAO JIANJUN ZHAO HONGBO TO: ZHANG KAIMING LIU SHANGWEN LIN ZHUSHENG CHEN WENHE LUO WENBIN MIAO JIANJUN MIN XIANWEN ZHOU SUQIANG ZHENG GUILIN JIANG JINGDONG HUANG RUIJIN WEI CAIHE LIN LI ZHAO HONGBO TIAN WEIZHOU |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |