CN101021151A - Wearproof point attack bit and processing method thereof - Google Patents
Wearproof point attack bit and processing method thereof Download PDFInfo
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- CN101021151A CN101021151A CN 200610069256 CN200610069256A CN101021151A CN 101021151 A CN101021151 A CN 101021151A CN 200610069256 CN200610069256 CN 200610069256 CN 200610069256 A CN200610069256 A CN 200610069256A CN 101021151 A CN101021151 A CN 101021151A
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Abstract
The present invention discloses a wear-resisting cutting pick and its production method. Said production method includes the following steps: adopting high-energy beam irradiation to make cutting pick head portion formed by means of a certain processing method be formed into a melting bath, at the same time feeding wear-resisting alloy powder into said melting bath, making the wear-resisting alloy powder and said melting bath be molten together, mixed and solidified so as to form the wear-resisting alloy pick head, then sharpening the pick head, making heat treatment and anticorrosive treatment so as to obtain the invented wear-resisting cutting pick.
Description
Technical field
The present invention relates to the helix drum coal-winning machine, relate in particular to the pick-shaped cutter of coal-winning machine.
Background technology
The Chinese patent publication number (is also authorized by the applicant's application, application number: 00310114444.X) disclose " a kind of manufacturing technique method of pick-shaped cutter ", it may further comprise the steps: 1. denticle blanking → 2. forging → 3. machining → 4. denticle surface ion bundle cladding coated with wear-resisting alloy → 5. denticle heat treatment → 6. quiet repaiies that blind hole → 7. cold charge carbide alloy crown → 8. surface anticorrosion is handled, and alloy coat wherein is grouped into by one-tenth such as Cr, Ni, W, Mo, V, C, Ti, B, Si, WC, TiC.Thereby the advantage of this processing method one be in the cladding of carbide alloy crown periphery the high alloy overcoat prolonged the service life of crown, the 2nd, no longer carry out the soldering heating behind the denticle heat treatment reinforcement, avoided the denticle annealing softening, also avoided carbide alloy to swash thermal quench and cracked.
But in practical operation, the applicant finds that there are following defective in this processing method and the pick that processes:
(1) owing to needs cold charge carbide alloy crown, technology more complicated, the crown difficult quality control of pick; (2) because processing method is implemented in alloy steel denticle and carbide alloy crown material ranges, the innovation of production method is subjected to the restriction of material; (3) owing to complex process, material is limited, the pick cost height that processes; (4) since the hard crown be cold charge and on, obscission is in use often arranged.
Summary of the invention
One of purpose of the present invention is: overcome the deficiency of above-mentioned pick, provide a kind of cost low novel pick-shaped cutter.
Another object of the present invention is: overcome the deficiency of above-mentioned processing method, the processing method of the wearproof point attack bit that a kind of operation is simple, crudy is high is provided.
Wearproof point attack bit of the present invention is by following method processing and fabricating:
Adopt the high-energy beam irradiation to form the molten bath at the pick tooth head that shapes, in the molten bath, send into simultaneously alloyed powder, solidify with the molten bath is melt-blended, form the antifriction alloy tooth head that is firm metallurgical binding with the denticle material, reconditioning goes out crown then, carries out denticle heat treatment and preservative treatment and gets final product.
Wearproof point attack bit processing method of the present invention may further comprise the steps:
(1) adopt the high-energy beam irradiation to form the molten bath at the pick tooth head that shapes, in the molten bath, send into simultaneously alloyed powder, the limit is sent into, the limit heating, when bath surface exceeds the centre bore upper edge, stop heating, make the alloy liquid cooled and solidified in the tooth head center hole, form antifriction alloy tooth head, require the inner no slag inclusion pore of antifriction alloy tooth head and loose, be firm metallurgical binding with the denticle material.
(2) reconditioning crown: on emery wheel, grind crown according to the pick dimensional requirement.
(3) denticle heat treatment:, quench or modified heat treatment according to the relevant art standard according to the trade mark of selected denticle structural alloy steel.
(4) surface anticorrosion is handled: to carrying out the oiling rust prevention packaging after the pick inspection.
Above-mentioned alloy powder mainly is made up of Ni, Cr, B, Si, Fe and C, also can add W, V, Ti and their strong carbide therein.
Above-mentioned high-energy beam refers to laser beam, beam-plasma or argon arc etc.
Good effect of the present invention is:
1, processing method of the present invention directly uses high energy beam current melting welding in pick tooth head position in the antifriction alloy powder, forms antifriction alloy tooth head, and reconditioning goes out crown again, saved refine blind hole and cold charge carbide alloy operation, but pick improves greatly application life.Through down-hole installation coal mining contrast test, basic identical with pick application life and traditional soldering carbide alloy pick that the inventive method is produced, but cost of production has but reduced more than 40%.
2, pick crown of the present invention has replaced expensive carbide alloy crown with the antifriction alloy crown, and not only cost is low, and has overcome for a long time people with the traditional concept of hard alloy as the pick wear-resisting head.
3, tooth head of the present invention has kept the self-sharpening in the cutting coal petrography process in the hardness distribution gradient of process mesostyle and denticle; Crown and denticle are metallurgical binding, have avoided crown to come off, and have also strengthened the bulk strength of pick; The pick bulk heat treatmet had both increased the denticle obdurability, also increased the hardness and the abrasion resistance of crown, did not produce any negative effect.
The specific embodiment:
Below in conjunction with the specific embodiment technical scheme of the present invention is described in detail.
The wear-resisting crown of the present invention is processed by following method:
1. denticle blanking → 2. forging → 3. machining → 4. tooth head melting welding antifriction alloy → 5. reconditioning crown → 6. denticle heat treatment → 7. surface anticorrosion is handled.
The specific embodiment of above-mentioned operation is:
1. denticle blanking: selecting the alloy structure rod iron for use is raw material, and the blanking volume calculates according to pick blank volume;
2. forge: according to the forging temperature of selected structural alloy steel, forge hot goes out the denticle blank;
3. machining: on lathe, require to cut the denticle profile according to drawing;
4. tooth head melting welding antifriction alloy: in pick tooth apical head centre bore, heat with the irradiation of high-energy beam such as laser beam, beam-plasma, argon arc along axis direction, in centre bore in the metal molten, in the hole, send into alloyed powder, the limit is sent into, and the limit heating stops heating when bath surface exceeds the centre bore upper edge, make the alloy liquid cooled and solidified in the tooth head center hole, form antifriction alloy tooth head;
5. reconditioning crown: on emery wheel, grind crown according to the pick dimensional requirement;
6. denticle heat treatment:, quench or modified heat treatment according to the relevant art standard according to the trade mark of selected denticle structural alloy steel;
7. surface anticorrosion is handled: to carrying out the oiling rust prevention packaging after the pick inspection.
Above-mentioned alloyed powder composition mainly is made up of 40 parts Ni, 20 parts Cr, 1 part B, 1 part Si, 35 parts Fe, 1 part C, also can add 1 part W, 1 part V and 1 part TiC therein.Above-mentioned umber is a weight portion.
Claims (10)
1, a kind of wearproof point attack bit, it is characterized in that, it is to adopt the high-energy beam irradiation to form the molten bath at the pick tooth head that shapes, in the molten bath, send into simultaneously the antifriction alloy powder, solidify with the molten bath is melt-blended, form the antifriction alloy tooth head that is firm metallurgical binding with the denticle material, reconditioning goes out crown then, carries out denticle heat treatment and preservative treatment and gets final product.
2, wearproof point attack bit as claimed in claim 1 is characterized in that, described high-energy beam refers to a kind of in laser beam, beam-plasma and the argon arc.
3, wearproof point attack bit as claimed in claim 1 is characterized in that, described wear resistant alloy powders mainly is made up of Ni, Cr, B, Si, Fe and C.
4, wearproof point attack bit as claimed in claim 3 is characterized in that, also comprises at least a among W, V and the Ti in the described wear resistant alloy powders.
5, wearproof point attack bit as claimed in claim 4 is characterized in that, also comprises at least a in the carbide of W, V and Ti in the described wear resistant alloy powders.
6, wearproof point attack bit as claimed in claim 1, it is characterized in that, described antifriction alloy meal component is made up of 40 parts Ni, 20 parts Cr, 1 part B, 1 part Si, 35 parts Fe, 1 part C, 1 part W, 1 part V and 1 part TiC, and above-mentioned umber is a weight portion.
7, a kind of processing method of wearproof point attack bit is characterized in that, it may further comprise the steps:
(1) adopt the high-energy beam irradiation to form the molten bath at the pick tooth head that shapes, in the molten bath, send into simultaneously alloyed powder, the limit is sent into, the limit heating, when bath surface exceeds the centre bore upper edge, stop heating, make the alloy liquid cooled and solidified in the tooth head center hole, form antifriction alloy tooth head, require the inner no slag inclusion pore of antifriction alloy tooth head and loose, be firm metallurgical binding with the denticle material;
(2) reconditioning crown: on emery wheel, grind crown according to the pick dimensional requirement;
(3) denticle heat treatment:, quench or modified heat treatment according to the relevant art standard according to the trade mark of selected denticle structural alloy steel;
(4) surface anticorrosion is handled: to carrying out the oiling rust prevention packaging after the pick inspection.
8, the processing method of wearproof point attack bit as claimed in claim 7 is characterized in that, described high-energy beam refers to a kind of in laser beam, beam-plasma and the argon arc.
9, the processing method of wearproof point attack bit as claimed in claim 7 is characterized in that, described alloy powder mainly is made up of Ni, Cr, B, Si, Fe and C.
10, the processing method of wearproof point attack bit as claimed in claim 9, it is characterized in that, described antifriction alloy meal component is made up of 40 parts Ni, 20 parts Cr, 1 part B, 1 part Si, 35 parts Fe, 1 part C, 1 part W, 1 part V and 1 part TiC, and above-mentioned umber is a weight portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610069256 CN101021151A (en) | 2006-10-10 | 2006-10-10 | Wearproof point attack bit and processing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610069256 CN101021151A (en) | 2006-10-10 | 2006-10-10 | Wearproof point attack bit and processing method thereof |
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| CN101021151A true CN101021151A (en) | 2007-08-22 |
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| CN 200610069256 Pending CN101021151A (en) | 2006-10-10 | 2006-10-10 | Wearproof point attack bit and processing method thereof |
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| CN (1) | CN101021151A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101787887B (en) * | 2010-01-12 | 2012-01-11 | 太原理工大学 | Pick having bimetal structure and preparation method thereof |
| CN102337535A (en) * | 2011-09-21 | 2012-02-01 | 湖南科技大学 | Cladding device for pickax-shaped cutting pick surface |
| CN102421990A (en) * | 2009-05-14 | 2012-04-18 | 桑德威克采矿和建筑有限责任公司 | Cutting tool for a mining machine |
| CN103600071A (en) * | 2013-11-22 | 2014-02-26 | 上海彩石激光科技有限公司 | Device and method for cutting tooth net shaping |
| CN103898501A (en) * | 2014-04-01 | 2014-07-02 | 安庆市灵宝机械有限责任公司 | Cutting tooth plasma beam surface metallurgy process |
| CN104250805A (en) * | 2013-06-28 | 2014-12-31 | 沈阳大陆激光成套设备有限公司 | Method for preparing wear-resistant heat-resistant coating through laser cladding of surface of guide roller by bar rolling mill |
| CN104789961A (en) * | 2015-04-28 | 2015-07-22 | 山东科技大学 | Wear-resistant bucket teeth with multi-scale strengthening phase coating and plasma cladding method |
| CN105863635A (en) * | 2016-04-05 | 2016-08-17 | 方义飞 | Pick, pick assembly, pick roller, crushing device, heading machine and coal cutter |
| CN106996294A (en) * | 2017-05-10 | 2017-08-01 | 山东科技大学 | A kind of coal mining machine roller pick, roller and coal-winning machine |
| CN109268395A (en) * | 2018-10-12 | 2019-01-25 | 翟长生 | A kind of angular contact ball bearing ring composite reinforcement process |
| CN111425203A (en) * | 2020-04-13 | 2020-07-17 | 山东科技大学 | Pick-shaped cutting tooth with plasma cladding composite tungsten carbide tip and processing method |
-
2006
- 2006-10-10 CN CN 200610069256 patent/CN101021151A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102421990A (en) * | 2009-05-14 | 2012-04-18 | 桑德威克采矿和建筑有限责任公司 | Cutting tool for a mining machine |
| CN101787887B (en) * | 2010-01-12 | 2012-01-11 | 太原理工大学 | Pick having bimetal structure and preparation method thereof |
| CN102337535A (en) * | 2011-09-21 | 2012-02-01 | 湖南科技大学 | Cladding device for pickax-shaped cutting pick surface |
| CN104250805A (en) * | 2013-06-28 | 2014-12-31 | 沈阳大陆激光成套设备有限公司 | Method for preparing wear-resistant heat-resistant coating through laser cladding of surface of guide roller by bar rolling mill |
| CN103600071A (en) * | 2013-11-22 | 2014-02-26 | 上海彩石激光科技有限公司 | Device and method for cutting tooth net shaping |
| CN103898501A (en) * | 2014-04-01 | 2014-07-02 | 安庆市灵宝机械有限责任公司 | Cutting tooth plasma beam surface metallurgy process |
| CN104789961A (en) * | 2015-04-28 | 2015-07-22 | 山东科技大学 | Wear-resistant bucket teeth with multi-scale strengthening phase coating and plasma cladding method |
| CN104789961B (en) * | 2015-04-28 | 2017-03-15 | 山东科技大学 | A kind of wear-resistant bucket tooth and plasma cladding method with multiple dimensioned hardening constituent coating |
| CN105863635A (en) * | 2016-04-05 | 2016-08-17 | 方义飞 | Pick, pick assembly, pick roller, crushing device, heading machine and coal cutter |
| CN105863635B (en) * | 2016-04-05 | 2018-02-06 | 曹艺刚 | Pick and pick assembly, pick roller, disintegrating apparatus, development machine, coal-winning machine |
| CN106996294A (en) * | 2017-05-10 | 2017-08-01 | 山东科技大学 | A kind of coal mining machine roller pick, roller and coal-winning machine |
| CN109268395A (en) * | 2018-10-12 | 2019-01-25 | 翟长生 | A kind of angular contact ball bearing ring composite reinforcement process |
| CN109268395B (en) * | 2018-10-12 | 2020-11-24 | 翟长生 | Composite reinforcement process for angular contact ball bearing ring |
| CN111425203A (en) * | 2020-04-13 | 2020-07-17 | 山东科技大学 | Pick-shaped cutting tooth with plasma cladding composite tungsten carbide tip and processing method |
| CN111425203B (en) * | 2020-04-13 | 2021-05-11 | 山东科技大学 | Pick-shaped cutting tooth with plasma cladding composite tungsten carbide tip and processing method |
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