CN1951627A - Process for producing chain pick - Google Patents
Process for producing chain pick Download PDFInfo
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- CN1951627A CN1951627A CN 200510010451 CN200510010451A CN1951627A CN 1951627 A CN1951627 A CN 1951627A CN 200510010451 CN200510010451 CN 200510010451 CN 200510010451 A CN200510010451 A CN 200510010451A CN 1951627 A CN1951627 A CN 1951627A
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- pick
- carbide alloy
- manufacturing technique
- technique method
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Abstract
The invention relates to a method for producing cutter bit. Wherein, it uses low-alloy steel to prepare the blank of cutter bit; then processes the blank, and drills hole on the end; the match part between rigid alloy and cutter bit has 1:20-1:5 taper degree; heats cutter bit to 1050-1150Deg. C; compresses rigid alloy into the hole at end; smelts to contract the hole at end; fixes the rigid alloy in cutter bit; and uses the left heat of smelt to thermally process. Compared with other methods, the invention can avoid rigid alloy to fall off, with long service life and low cost.
Description
Affiliated technical field
The present invention relates to a kind of manufacturing technique method of pick, especially carbide alloy is fixed in the pick by the process of forging, and a kind of pick manufacturing technique method that utilizes the waste heat that forges to heat-treat.
Background technology:
Pick is the strength member on the coal-winning machine, also is to consume maximum, the part of easy damage on the coal-winning machine.At present, the tradition of the various models that domestic coal-winning machine uses is forged the soldering pick, all is to adopt the steel alloy forging molding, holes on forging then, and carbide alloy is fixed with method for welding, handles through operations such as heat treatments again.This pick made from Forging Technology has good shock resistance, but the time welding non-uniform phenomenon that has soldering and influence bond strength, and the crown obscission is very serious, and its complex process, cost are higher simultaneously.The castingin pick is to adopt to put carbide alloy in the casting mold die cavity, pours into a mould the one-shot forming of iron liquid then.Make simultaneously between carbide alloy and the pick body to reach metallurgical binding, significantly improve adhesion between carbide alloy and the pick body.And simplified technology, reduced cost, and significantly improved service life.But defective such as shrinkage porosite appears in castingin pick easily in casting process, be mingled with has a strong impact on its use.
Summary of the invention:
Very serious in order to overcome the existing soldering pick carbide obscission of forging, the deficiency of complex manufacturing, defective such as cost is higher and shrinkage porosite appears in castingin pick easily in casting process, be mingled with.The invention provides and a kind ofly carbide alloy is fixed in the pick by the process of forging, and a kind of pick manufacturing technique method that utilizes the waste heat that forges to heat-treat.The hot charging immediate quenching pick of being produced and other picks have relatively fundamentally solved the carbide alloy obscission, and have characteristics such as better manufacturability, higher service life and production cost are lower.
Technical scheme of the present invention is: adopt the low-alloy steel material to forge the pick blank, then blank is processed, and holed on the pick end.Carbide alloy has 1: 20～1: 5 tapering.The pick end that processes is heated to 1050～1150C
0, and carbide alloy is pressed in the hole of pick end, by forging closed up in the hole of pick end, carbide alloy is fixed in the pick.When the pick temperature drops to 830～880C
0The time directly carry out quenching heat treatment.
The invention has the beneficial effects as follows,, make pick have higher intensity and hardness, so pick in use, bending can not occur and fracture owing to adopt low-alloy steel 40Cr rough forging.The carbide alloy that certain taper is arranged has very big package power through forging hot charging, makes it the carbide alloy obscission can not occur.Simultaneously, utilize waste heat that quenching heat treatment is carried out in the pick end, make the pick end have higher hardness.Therefore improved service life widely.
Description of drawings
Below in conjunction with drawings and Examples the present invention is done detailed explanation.
Accompanying drawing 1 is by the process of forging carbide alloy to be fixed in the pick, and utilizes the waste heat that forges to carry out the pick technological process of production figure of quenching heat treatment.
Accompanying drawing 2 is that the present invention is at the schematic diagram of not adorning carbide alloy.
Accompanying drawing 3 is schematic diagrames of carbide alloy of the present invention.
Accompanying drawing 4 is schematic diagrames of finished product of the present invention.
(1), pick among the figure, (2), straight hole, (3), carbide alloy.
The specific embodiment
Adopting the low-alloy steel material to forge pick (1) blank, then blank is processed, and on the pick end, bore a straight hole (2), carbide alloy (3) has 1: 20～1: 5 tapering.With the pick that processes by eddy-current heating to 1050～1150C
0, and be that 1: 20～1: 5 carbide alloy is pressed in the hole of pick end with tapering, forge and closed up in the hole of pick (1) end, carbide alloy (3) is fixed in the pick (1).When pick (1) temperature drops to 830～880C
0The time directly carry out quenching heat treatment.
Claims (7)
1, a kind of manufacturing technique method of pick is characterized in that adopting the low-alloy steel material, by the process of forging carbide alloy is fixed in the pick, and utilizes the waste heat that forges to carry out a kind of pick manufacturing technique method of quenching heat treatment.
2, the manufacturing technique method of a kind of pick according to claim 1 is characterized in that adopting the low-alloy steel material.
3, the manufacturing technique method of a kind of pick according to claim 1 is characterized in that by the process of forging carbide alloy being fixed in the pick.
4,, the manufacturing technique method of a kind of pick according to claim 3, it is characterized in that pick is heated to 1050～1150C
0In time, be pressed into carbide alloy in the hole, and forge and closed up in the hole of pick end, and carbide alloy is fixed in the pick.
5, the manufacturing technique method of a kind of pick according to claim 3 is characterized in that eddy-current heating is carried out in hole in the pick and carbide alloy mating part part.
6, the manufacturing technique method of a kind of pick according to claim 3 is characterized in that carbide alloy and pick mating part have 1: 20～1: 5 tapering.
7, the manufacturing technique method of a kind of pick according to claim 1, it is characterized in that carbide alloy is fixed in the pick after, when the pick temperature drops to 830～880C
0The time directly carry out quenching heat treatment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510010451 CN1951627A (en) | 2005-10-21 | 2005-10-21 | Process for producing chain pick |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510010451 CN1951627A (en) | 2005-10-21 | 2005-10-21 | Process for producing chain pick |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1951627A true CN1951627A (en) | 2007-04-25 |
Family
ID=38058287
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510010451 Pending CN1951627A (en) | 2005-10-21 | 2005-10-21 | Process for producing chain pick |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1951627A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876251A (en) * | 2010-06-20 | 2010-11-03 | 大丰市中德精锻件有限公司 | Welding-free cutting bit |
| CN101935745A (en) * | 2010-08-05 | 2011-01-05 | 山西鑫博瑞科技有限公司 | Heat treatment device and heat treatment method for coal cutting teeth |
| CN103205551A (en) * | 2013-05-06 | 2013-07-17 | 山推工程机械股份有限公司 | Thermal treatment processing method of thrust wheel |
| CN105238919A (en) * | 2015-10-09 | 2016-01-13 | 湖南三特机械制造有限公司 | Thermal treatment method for thrust wheel |
| CN109732062A (en) * | 2019-03-07 | 2019-05-10 | 大连理工大学 | Metal mold castingin coal winning machine cutting bit |
| CN111842752A (en) * | 2020-07-06 | 2020-10-30 | 鹤岗市融鑫矿山机械制造有限责任公司 | Cutting tooth structure of heading machine and production process method |
| CN112943239A (en) * | 2019-12-10 | 2021-06-11 | 刘振英 | Novel pick-shaped cutting tooth structure and processing method thereof |
-
2005
- 2005-10-21 CN CN 200510010451 patent/CN1951627A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101876251A (en) * | 2010-06-20 | 2010-11-03 | 大丰市中德精锻件有限公司 | Welding-free cutting bit |
| CN101935745A (en) * | 2010-08-05 | 2011-01-05 | 山西鑫博瑞科技有限公司 | Heat treatment device and heat treatment method for coal cutting teeth |
| CN103205551A (en) * | 2013-05-06 | 2013-07-17 | 山推工程机械股份有限公司 | Thermal treatment processing method of thrust wheel |
| CN105238919A (en) * | 2015-10-09 | 2016-01-13 | 湖南三特机械制造有限公司 | Thermal treatment method for thrust wheel |
| CN109732062A (en) * | 2019-03-07 | 2019-05-10 | 大连理工大学 | Metal mold castingin coal winning machine cutting bit |
| CN112943239A (en) * | 2019-12-10 | 2021-06-11 | 刘振英 | Novel pick-shaped cutting tooth structure and processing method thereof |
| CN111842752A (en) * | 2020-07-06 | 2020-10-30 | 鹤岗市融鑫矿山机械制造有限责任公司 | Cutting tooth structure of heading machine and production process method |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |