CN1148659A - Method for production of coal petrography boring bar by using waste track steel - Google Patents
Method for production of coal petrography boring bar by using waste track steel Download PDFInfo
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- CN1148659A CN1148659A CN 95113042 CN95113042A CN1148659A CN 1148659 A CN1148659 A CN 1148659A CN 95113042 CN95113042 CN 95113042 CN 95113042 A CN95113042 A CN 95113042A CN 1148659 A CN1148659 A CN 1148659A
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- boring bar
- coal petrography
- production
- waste
- track steel
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Abstract
The present invention relates to a method for producing coal boring rod by using waste and old steel rail. Said method includes the following steps: base material blanking, heating, torsion-forming, die stamping-forming, straightening, finishing and surface treatment so as to obtain the invented coal boring rod. Said method possesses the advantages of simple production process, low production cost, good product mechanical property and long service life.
Description
The present invention relates to a kind of method of utilizing waste track steel to produce coal petrography boring bar, belong to drill pipe tool processing class.
At present, the many producers of China all adopt No. 45 steel to make coal petrography boring bar as base material by technologies such as heating, moulding, fine finishining, surfacings, and this technology is owing to adopt No. 45 Fine Steel Casting irons, thereby exist the cost of raw material higher, process equipment is comparatively expensive as equipment such as distortion machines in addition.Therefore there is the higher shortcoming of cost of production in the method for No. 45 steel production of existing usefulness coal petrography boring bar.
The method that the objective of the invention is to utilize waste and old track steel to produce coal petrography boring bar as base material, the coal petrography boring bar of producing with this method have advantages such as equipment investment is low, production technology is simple, cost is low, produce coal petrography boring bar good mechanical property, long service life.
The object of the present invention is achieved like this: utilize waste track steel to produce the method for coal petrography boring bar, comprise base material blanking, moulding, it is characterized in that after being twisted into type after the waste and old track steel substrate process blanking heating, carry out mould again and forge moulding, promptly make coal after alignment, fine finishining, painting on surface are handled and bore material.
Further describe the present invention below in conjunction with embodiment.
Waste track steel is slit into fritter, the steel after the blanking are pumped into garden shape or prismatic on request through heating, turn round through the distortion machine and make the parison material, carry out mould and forge shaping.With mould is forged the moulding screw thread, the moulding polished rod carries out alignment, fine finishining, to reach dimension precision requirement, the shaping drilling rod semiproduct after the fine finishining are heat-treated, painting on surface is promptly made finished product again.
After tested and the test manufacture; Produce 200 meters drilling rods with class and calculate, be compared as follows with product and No. 45 carbon steel product main economic and technical indices of waste track steel production: the first 1,280 179 transverse strength N/mm of No. 45 high-quality carbon junction steels of project unit's industry tracks steel weight kg 800 800 power consumption degree, 140 440 consumption coal kg 400 400 factory costs2675 635 hardness HRC 45～48 42～45 roughness
(1.5 L＜1200) 2 (L＜1200) axiality mm/m
2.5(L≥1200) 3(L≥1200)
Compare with identical production scale, adopt with waste track steel and produce the coal petrography brill Bar is respectively 40,000 yuan with the production process equipment of producing coal petrography boring bars with No. 45 steel With 20.7 ten thousand yuan.
The present invention is because to adopt waste track steel be raw material, saved No. 45 excellent The matter steel has reduced the cost of raw material, and this technology has low, the production equipment of energy consumption Low, technology is simple, production cost is low, the drilling rod of producing have the hardness height, The advantages such as bending resistance, torsional strength is big, the life-span is long.
Claims (1)
1, utilize waste track steel to produce the method for coal petrography boring bar, comprise base material blanking, moulding, it is characterized in that with waste and old track steel substrate through blanking heating back, twist moulding after, carry out mould again and forge moulding, promptly make coal after alignment, fine finishining, painting on surface are handled and bore material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95113042 CN1148659A (en) | 1995-10-24 | 1995-10-24 | Method for production of coal petrography boring bar by using waste track steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95113042 CN1148659A (en) | 1995-10-24 | 1995-10-24 | Method for production of coal petrography boring bar by using waste track steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1148659A true CN1148659A (en) | 1997-04-30 |
Family
ID=5079833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95113042 Pending CN1148659A (en) | 1995-10-24 | 1995-10-24 | Method for production of coal petrography boring bar by using waste track steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1148659A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157091B (en) * | 2007-11-22 | 2010-04-07 | 郴州市伊斯达实业有限公司 | Method for disintegrating relayable rails |
-
1995
- 1995-10-24 CN CN 95113042 patent/CN1148659A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101157091B (en) * | 2007-11-22 | 2010-04-07 | 郴州市伊斯达实业有限公司 | Method for disintegrating relayable rails |
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Legal Events
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|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |