CN107675064A - A kind of coal winning machine cutting bit and its processing technology - Google Patents
A kind of coal winning machine cutting bit and its processing technology Download PDFInfo
- Publication number
- CN107675064A CN107675064A CN201710933823.3A CN201710933823A CN107675064A CN 107675064 A CN107675064 A CN 107675064A CN 201710933823 A CN201710933823 A CN 201710933823A CN 107675064 A CN107675064 A CN 107675064A
- Authority
- CN
- China
- Prior art keywords
- parts
- pick
- cutting bit
- winning machine
- machine cutting
- 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.)
- Pending
Links
- 239000003245 coal Substances 0.000 title claims abstract description 26
- 238000005520 cutting process Methods 0.000 title claims abstract description 26
- 238000005516 engineering process Methods 0.000 title claims abstract description 12
- 239000000463 material Substances 0.000 claims abstract description 17
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000005238 degreasing Methods 0.000 claims description 10
- 239000000843 powder Substances 0.000 claims description 10
- 238000005245 sintering Methods 0.000 claims description 10
- 238000010792 warming Methods 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 5
- 238000000462 isostatic pressing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 229910052804 chromium Inorganic materials 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 229910052742 iron Inorganic materials 0.000 abstract description 2
- 238000005461 lubrication Methods 0.000 abstract description 2
- 229910052748 manganese Inorganic materials 0.000 abstract description 2
- 229910052750 molybdenum Inorganic materials 0.000 abstract description 2
- 229910052759 nickel Inorganic materials 0.000 abstract description 2
- 229910052710 silicon Inorganic materials 0.000 abstract description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000003471 mutagenic agent Substances 0.000 description 1
- 231100000707 mutagenic chemical Toxicity 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C30/00—Alloys containing less than 50% by weight of each constituent
- C22C30/02—Alloys containing less than 50% by weight of each constituent containing copper
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C1/00—Making non-ferrous alloys
- C22C1/04—Making non-ferrous alloys by powder metallurgy
- C22C1/045—Alloys based on refractory metals
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C22/00—Alloys based on manganese
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C27/00—Alloys based on rhenium or a refractory metal not mentioned in groups C22C14/00 or C22C16/00
- C22C27/06—Alloys based on chromium
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/18—Mining picks; Holders therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F2998/00—Supplementary information concerning processes or compositions relating to powder metallurgy
- B22F2998/10—Processes characterised by the sequence of their steps
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Powder Metallurgy (AREA)
Abstract
The invention discloses a kind of coal winning machine cutting bit, in parts by weight, is made up of following raw materials according：Mo：20 40 parts, C：24 parts, Si：68 parts, Mn：40 60 parts, P：0.01 0.02 parts, S：0.02 0.08 parts, Cr：40 45 parts, Ni：10 15 parts, Cu:10 15 parts, Fe：0.02 0.05 parts, Al：0.12 0.15 parts.Invention additionally discloses the processing technology of above-mentioned coal winning machine cutting bit.Due to the coal winning machine cutting bit in the present invention, use the hard material such as including Mo, Si, Mn, C, Cr, Ni, Cu, Fe, material hardness is high, contain a large amount of Mo elements in material simultaneously, the product of Mo oxide can be formed in friction, the presence of which can have certain lubrication to contact surface, reduce the frictional dissipation of material, greatly prolong the service life of pick.
Description
Technical field
The present invention relates to a kind of pick and its processing technology, and in particular to a kind of coal winning machine cutting bit and its processing technology.
Background technology
Coal winning machine cutting bit is generally seated in the front end of coal-winning machine bucket, is directly contacted at work with materials such as rock, collieries,
When pick cuts material, with material relative motion occurs for pick, and very big forward extrusion power is produced on surface, so as in pick work
Make to produce larger frictional force between face and material, pick will withstand shocks effect；When excavating, Moment is born again,
Due to bearing larger impact for a long time, pick surface produces different degrees of abrasion, and then produces the larger ditch dug with a plow of depth, leads
Mutagens shape, come off.Present coal-winning machine is widely used in exploiting colliery, cuts into a mountain and dig ore deposit, and quantity is more, and wherein pick is consumable accessory, often
The substantial amounts that year is changed, value can not be estimated.At present, the coal winning machine cutting bit presence of in the market is not wear-resisting, service life is short, hard
Spend the shortcomings that low.
The content of the invention
It is an object of the invention to provide the coal winning machine cutting bit that a kind of wearability is strong, service life is long, hardness is high.
In order to achieve the above object, a kind of coal winning machine cutting bit of the invention, in parts by weight, is made up of following raw materials according：
Mo ：20-40 parts, C：2-4 parts, Si：6-8 parts, Mn：40-60 parts, P：0.01-0.02 parts, S：0.02-0.08 parts, Cr：
40-45 parts, Ni：10-15 parts, Cu:10-15 parts, Fe：0.02-0.05 parts, Al：0.12-0.15 parts.
It is another object of the present invention to provide a kind of above-mentioned processing technology of coal winning machine cutting bit, comprise the following steps：
A processes pick model, takes material powder levigate mixing in ball mill of said ratio, and is dried, sieves powder, then
Pick model surface is compressed on using isostatic pressing machine to be molded, then turns into pick by article shaped is integral sintered；
Pick in step a is carried out degreasing by b between temperature is 450-550 °；
Pick sintering temperature after degreasing is warming up to 1050-1150 ° by c, and is incubated half an hour；
After the completion of d insulations, pick is continued to heat, pick sintering temperature is warming up to 1300-1350 °, and insulation half is small again
When；
E allows the pick after being incubated again to obtain coal winning machine cutting bit finished product with the cold cooling of stove.
In the above-mentioned technical solutions, due to the coal winning machine cutting bit in the present invention, using including Mo, Si, Mn, C, Cr, Ni,
The hard materials such as Cu, Fe, material hardness is high, while contains a large amount of Mo elements in material, and Mo oxide can be formed in friction
Product, the presence of which can have certain lubrication to contact surface, reduce the frictional dissipation of material；And the big connection of intensity
Firmly, it is difficult for drop-off；Sinter the pick formed and make it that whole working position performance is homogeneous, avoid because somewhere defect causes entirely
The failure of workpiece, overall wear resistance and intensity are all strengthened.
Embodiment
A kind of coal winning machine cutting bit and its processing technology of the present invention are described further with reference to specific implementation；
Implementation column 1：
A kind of coal winning machine cutting bit of the present invention, in parts by weight, is made up of following raw materials according：
Mo ：20 parts, C：2 parts, Si：6 parts, Mn：40 parts, P：0.01 part, S：0.02 part, Cr：40 parts, Ni：10 parts, Cu:10 parts,
Fe：0.02 part, Al：0.12 part.
A kind of processing technology of above-mentioned coal winning machine cutting bit, comprises the following steps：
A processes pick model, takes material powder levigate mixing in ball mill of said ratio, and is dried, sieves powder, then
Pick model surface is compressed on using isostatic pressing machine to be molded, then turns into pick by article shaped is integral sintered；
Pick in step a is 450 ° of progress degreasings in temperature by b；
Pick sintering temperature after degreasing is warming up to 1050 ° by c, and is incubated half an hour；
After the completion of d insulations, pick is continued to heat, pick sintering temperature is warming up to 1300 °, and be incubated half an hour again；
E allows the pick after being incubated again to obtain coal winning machine cutting bit finished product with the cold cooling of stove.
Implementation column 2：
A kind of coal winning machine cutting bit of the present invention, in parts by weight, is made up of following raw materials according：
Mo ：30 parts, C：3 parts, Si：6 parts, Mn：50 parts, P：0.02 part, S：0.06 part, Cr：42 parts, Ni：12 parts, Cu:12 parts,
Fe：0.04 part, Al：0.15 part.
A kind of processing technology of above-mentioned coal winning machine cutting bit, comprises the following steps：
A processes pick model, takes material powder levigate mixing in ball mill of said ratio, and is dried, sieves powder, then
Pick model surface is compressed on using isostatic pressing machine to be molded, then turns into pick by article shaped is integral sintered；
Pick in step a is 500 ° of progress degreasings in temperature by b；
Pick sintering temperature after degreasing is warming up to 1100 ° by c, and is incubated half an hour；
After the completion of d insulations, pick is continued to heat, pick sintering temperature is warming up to 1320 °, and be incubated half an hour again；
E allows the pick after being incubated again to obtain coal winning machine cutting bit finished product with the cold cooling of stove.
Embodiment 3：
A kind of coal winning machine cutting bit of the present invention, in parts by weight, is made up of following raw materials according：
Mo：40 parts, C：4 parts, Si：8 parts, Mn：60 parts, P：0.02 part, S：0.08 part, Cr：45 parts, Ni：15 parts, Cu:15 parts,
Fe：0.05 part, Al：0.15 part.
A kind of processing technology of above-mentioned coal winning machine cutting bit, comprises the following steps：
A processes pick model, takes material powder levigate mixing in ball mill of said ratio, and is dried, sieves powder, then
Pick model surface is compressed on using isostatic pressing machine to be molded, then turns into pick by article shaped is integral sintered；
Pick in step a is 550 ° of progress degreasings in temperature by b；
Pick sintering temperature after degreasing is warming up to 1150 ° by c, and is incubated half an hour；
After the completion of d insulations, pick is continued to heat, pick sintering temperature is warming up to 1350 °, and be incubated half an hour again；
E allows the pick after being incubated again to obtain coal winning machine cutting bit finished product with the cold cooling of stove.
Claims (2)
1. a kind of coal winning machine cutting bit, in parts by weight, it is made up of following raw materials according：
Mo ：20-40 parts, C：2-4 parts, Si：6-8 parts, Mn：40-60 parts, P：0.01-0.02 parts, S：0.02-0.08 parts, Cr：
40-45 parts, Ni：10-15 parts, Cu:10-15 parts, Fe：0.02-0.05 parts, Al：0.12-0.15 parts.
2. a kind of processing technology of coal winning machine cutting bit as claimed in claim 1, comprises the following steps：
A processes pick model, takes material powder levigate mixing in ball mill of said ratio, and is dried, sieves powder, then
Pick model surface is compressed on using isostatic pressing machine to be molded, then turns into pick by article shaped is integral sintered；
Pick in step a is carried out degreasing by b between temperature is 450-550 °；
Pick sintering temperature after degreasing is warming up to 1050-1150 ° by c, and is incubated half an hour；
After the completion of d insulations, pick is continued to heat, pick sintering temperature is warming up to 1300-1350 °, and insulation half is small again
When；
E allows the pick after being incubated again to obtain coal winning machine cutting bit finished product with the cold cooling of stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710933823.3A CN107675064A (en) | 2017-10-10 | 2017-10-10 | A kind of coal winning machine cutting bit and its processing technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710933823.3A CN107675064A (en) | 2017-10-10 | 2017-10-10 | A kind of coal winning machine cutting bit and its processing technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107675064A true CN107675064A (en) | 2018-02-09 |
Family
ID=61139926
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710933823.3A Pending CN107675064A (en) | 2017-10-10 | 2017-10-10 | A kind of coal winning machine cutting bit and its processing technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107675064A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115596439A (en) * | 2022-11-01 | 2023-01-13 | 盐城市欧特威机械科技有限公司（Cn） | Wear-resistant cutting tooth for heading machine and manufacturing process thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737044A (en) * | 2009-12-01 | 2010-06-16 | 郑州大学 | High-abrasion resistance cutting teeth of coal-winning machine and production process thereof |
| CN102330028A (en) * | 2010-11-15 | 2012-01-25 | 贵州新润科技咨询服务有限公司 | Metal alloy material for cutting pick bodies of coal cutters |
| CN103866173A (en) * | 2014-03-06 | 2014-06-18 | 西安交通大学 | Hard alloy material for cutting-teeth cutting head of coal cutter and preparation method of hard alloy material |
| CN106285672A (en) * | 2016-10-17 | 2017-01-04 | 武汉春禾科技有限公司 | Coal cutter cutting tooth and processing technology |
-
2017
- 2017-10-10 CN CN201710933823.3A patent/CN107675064A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101737044A (en) * | 2009-12-01 | 2010-06-16 | 郑州大学 | High-abrasion resistance cutting teeth of coal-winning machine and production process thereof |
| CN102330028A (en) * | 2010-11-15 | 2012-01-25 | 贵州新润科技咨询服务有限公司 | Metal alloy material for cutting pick bodies of coal cutters |
| CN103866173A (en) * | 2014-03-06 | 2014-06-18 | 西安交通大学 | Hard alloy material for cutting-teeth cutting head of coal cutter and preparation method of hard alloy material |
| CN106285672A (en) * | 2016-10-17 | 2017-01-04 | 武汉春禾科技有限公司 | Coal cutter cutting tooth and processing technology |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115596439A (en) * | 2022-11-01 | 2023-01-13 | 盐城市欧特威机械科技有限公司（Cn） | Wear-resistant cutting tooth for heading machine and manufacturing process thereof |
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|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180209 |
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| WD01 | Invention patent application deemed withdrawn after publication |