CN106140865B - The preparation method of seamless steel pipe - Google Patents
The preparation method of seamless steel pipe Download PDFInfo
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- CN106140865B CN106140865B CN201610543095.0A CN201610543095A CN106140865B CN 106140865 B CN106140865 B CN 106140865B CN 201610543095 A CN201610543095 A CN 201610543095A CN 106140865 B CN106140865 B CN 106140865B
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- phosphatization
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
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Abstract
The present invention relates to a kind of preparation method of seamless steel pipe, include the following steps: to carry out formed punch on punching head machine in the enterprising eleven punch 11 of punch after 1) heating pipe, heating；2) pickling, phosphatization and saponification process are carried out, carries out cold-drawn on drawbench after the completion；3) it is heat-treated in annealing furnace；4) pickling, phosphatization and saponification process are carried out, and carries out cold-drawn on drawbench after the completion；5) phosphatization and saponification process are carried out, and carries out ungrease treatment after the completion；6) it carries out pricking head processing on pricking head machine；7) the 4th pickling, phosphatization and saponification process are carried out, and carries out cold-drawn on drawbench after the completion；8) it carries out pricking head processing on pricking head machine；9) it is heat-treated in anaerobic annealing furnace；10) straightening processing is carried out on straightener；11) Pipe Cutting processing is carried out on pipe cutting machine.The present invention uses automatic charging, saves labour, and can the cold-drawns simultaneously of two steel pipes, improve the efficiency of cold drawing steel tube.
Description
Technical field
The present invention relates to a kind of preparation methods of seamless steel pipe.
Background technique
Seamless steel pipe is a kind of with hollow section, the non-jointed strip steel in periphery.Seamless steel pipe is hollow because having
Section, so being largely used as the pipeline of trandfer fluid, such as the pipeline of transfer oil, natural gas, coal gas and water and certain solid materials
Deng.Seamless steel pipe is compared with the solid steel such as round steel, and when bending resistance torsional strength is identical, lighter in weight is a kind of Economic Section
Steel are also widely used in manufacture structural member and machine components, as oil drill rocker, truck drive shaft, bicycle rack and building are applied
Steel feet hand cradle in work etc. manufactures ring-shaped work pieces with seamless steel pipe, and stock utilization can be improved, and simplifies manufacturing process, saves
Material and machining period, such as rolling bearing lasso, very heavy top cover, are manufactured with seamless steel pipe extensively at present.Seamless steel pipe
Or various indispensable materials of conventional weapon, gun barrel, gun barrel etc. will seamless steel pipe manufacture.
Traditional seamless steel pipe manufactures the poor surface smoothness of not only steel pipe, but also the end of steel pipe can generate stress, lead
Cause steel tube end part cracking.
Summary of the invention
The purpose of the present invention is to provide a kind of seamless steel pipe surface smoothness is good, the seamless steel that steel tube end part will not cracking
The preparation method of pipe.
In order to achieve the above object, it the technical scheme is that a kind of preparation method of seamless steel pipe, including walks as follows
It is rapid:
1) in the enterprising eleven punch 11 of punch after being heated, being heated to pipe, formed punch is carried out on punching head machine；
2) first time pickling, phosphatization and saponification process are carried out, and carries out cold-drawn on drawbench after the completion；
3) it is heat-treated in annealing furnace, using inert gas shielding；
4) second of pickling, phosphatization and saponification process are carried out, and carries out cold-drawn on drawbench after the completion；
5) third time phosphatization and saponification process are carried out, and carries out ungrease treatment after the completion；Ungrease treatment can make steel pipe
The finish on surface improves.
6) it carries out pricking head processing for the first time on pricking head machine, pricking head machine is that head machine is pricked in heating；
7) the 4th pickling, phosphatization and saponification process are carried out, and carries out cold-drawn on drawbench after the completion；
8) second is carried out on pricking head machine and pricks head processing, and pricking head machine is that head machine is pricked in heating；
9) last time heat treatment is carried out in anaerobic annealing furnace；
10) straightening processing is carried out on straightener；
11) Pipe Cutting processing is carried out on pipe cutting machine.
After the 4th pickling, phosphatization and saponification process, according to the product demand that whether meets of steel pipe, the 5th hypo acid is carried out
It washes, phosphatization and saponification process.
It needs to test to pipe before pipe is heated, and cuts pipe.
It is described to carry out product inspection, nondestructive inspection detection after Pipe Cutting on pipe cutting machine.
Described to need to carry out antirust treatment after nondestructive inspection detection detection, in the oil by steel pipe leaching, the time is not less than 45
Minute.
The pickling time is 50 minutes, and phosphating time is 10-20 minutes, and saponification time is 5-20 minutes.
After adopting the above structure, four pickling, phosphatization and saponification process are used in seamless steel pipe manufacture of the invention, the
Once, for the second time and after the completion of the 4th processing, steel pipe carries out cold-drawn directly on drawbench, and right after third time is handled
Steel pipe carries out ungrease treatment.The surface smoothness of this manufacturing method steel pipe improves.After the completion of third time and the 4th processing,
Steel pipe is carried out to prick head processing, and pricks head machine and head machine is pricked using heating, the Leading Edge Deformation stress elimination of steel pipe, end will not open
It splits.
Specific embodiment
The present invention is described in further detail for embodiment below.
A kind of preparation method of seamless steel pipe, characterized by the following steps:
1) in the enterprising eleven punch 11 of punch after being heated, being heated to pipe, formed punch is carried out on punching head machine；
2) first time pickling, phosphatization and saponification process are carried out, and carries out cold-drawn on drawbench after the completion；
3) it is heat-treated in annealing furnace, using inert gas shielding；In this step, steel pipe carries out at heat for the first time
Reason improves the mechanical performance of steel pipe, eliminates part stress.
4) second of pickling, phosphatization and saponification process are carried out, and carries out cold-drawn on drawbench after the completion；In this step
In rapid, steel pipe carries out second and handles, good antirust property.
5) third time phosphatization and saponification process are carried out, and carries out ungrease treatment after the completion；After degreasing, the surface light of steel pipe
Cleanliness improves.
6) it carries out pricking head processing for the first time on pricking head machine, pricking head machine is that head machine is pricked in heating；After pricking the heating of head machine, it can make
The end stress of steel pipe is eliminated, and will not cracking.
7) the 4th pickling, phosphatization and saponification process are carried out, and carries out cold-drawn on drawbench after the completion；
8) second is carried out on pricking head machine and pricks head processing, and pricking head machine is that head machine is pricked in heating；Further eliminate the end of steel pipe
Portion's stress.
9) last time heat treatment is carried out in anaerobic annealing furnace；Improve the mechanical performance of steel pipe.
10) straightening processing is carried out on straightener；
11) Pipe Cutting processing is carried out on pipe cutting machine.
After the 4th pickling, phosphatization and saponification process, according to the product demand that whether meets of steel pipe, the 5th hypo acid is carried out
It washes, phosphatization and saponification process.
It needs to test to pipe before pipe is heated, and cuts pipe.Examining includes tensile strength, surrender
The inspection of intensity and its elongation.
Described to carry out product inspection, nondestructive inspection detection after Pipe Cutting on pipe cutting machine, flaw detection is carried out using eddy current testing equipment.
Described to need to carry out antirust treatment after nondestructive inspection detection detection, in the oil by steel pipe leaching, the time is not less than 45
Minute.
The pickling time is 50 minutes, and phosphating time is 10-20 minutes, and saponification time is 5-20 minutes.
What has been described above is only a preferred embodiment of the present invention, it is noted that for those of ordinary skill in the art
For, without departing from the concept of the premise of the invention, various modifications and improvements can be made, these belong to the present invention
Protection scope.
Claims (6)
1. a kind of preparation method of seamless steel pipe, characterized by the following steps:
1) in the enterprising eleven punch 11 of punch after being heated, being heated to pipe, formed punch is carried out on punching head machine；
2) first time pickling, phosphatization and saponification process are carried out, and carries out cold-drawn on drawbench after the completion；
3) it is heat-treated in annealing furnace, using inert gas shielding；
4) second of pickling, phosphatization and saponification process are carried out, and carries out cold-drawn on drawbench after the completion；
5) third time phosphatization and saponification process are carried out, and carries out ungrease treatment after the completion；
6) it carries out pricking head processing for the first time on pricking head machine, pricking head machine is that head machine is pricked in heating；
7) the 4th pickling, phosphatization and saponification process are carried out, and carries out cold-drawn on drawbench after the completion；
8) second is carried out on pricking head machine and pricks head processing, and pricking head machine is that head machine is pricked in heating；
9) last time heat treatment is carried out in anaerobic annealing furnace；
10) straightening processing is carried out on straightener；
11) Pipe Cutting processing is carried out on pipe cutting machine.
2. the preparation method of seamless steel pipe according to claim 1, it is characterised in that: in the 4th pickling, phosphatization and soap
After change processing, the 5th pickling, phosphatization and saponification process are carried out.
3. the preparation method of seamless steel pipe according to claim 1, it is characterised in that: needed before pipe is heated pair
Pipe is tested, and cuts pipe.
4. the preparation method of seamless steel pipe according to claim 1, it is characterised in that: the Pipe Cutting on pipe cutting machine is laggard
Row product inspection, nondestructive inspection detection.
5. the preparation method of seamless steel pipe according to claim 4, it is characterised in that: described to be detected in nondestructive inspection
After need to carry out antirust treatment, by steel pipe leaching in the oil, the time be not less than 45 minutes.
6. the preparation method of seamless steel pipe according to claim 1, it is characterised in that: the pickling time is 50 minutes,
Phosphating time is 10-20 minutes, and saponification time is 5-20 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610543095.0A CN106140865B (en) | 2016-07-12 | 2016-07-12 | The preparation method of seamless steel pipe |
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| CN201610543095.0A CN106140865B (en) | 2016-07-12 | 2016-07-12 | The preparation method of seamless steel pipe |
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| CN106140865A CN106140865A (en) | 2016-11-23 |
| CN106140865B true CN106140865B (en) | 2019-08-30 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10647825B2 (en) * | 2016-11-25 | 2020-05-12 | Nouryon Chemicals International B.V. | Peroxide masterbatch |
| CN107520271A (en) * | 2017-08-03 | 2017-12-29 | 常熟市异型钢管有限公司 | The production technology of the special-shaped steel high pressure seamless pipe of waste heat boiler |
| CN109926462A (en) * | 2018-04-16 | 2019-06-25 | 万向钱潮股份有限公司 | Hollow axis production technology of steel tube of swaging |
| CN114210759A (en) * | 2021-12-15 | 2022-03-22 | 张家港市华港实业有限公司 | Seamless steel tube production process |
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| CN85101434A (en) * | 1985-04-01 | 1985-10-10 | 国营青岛钢厂 | Manufacture of fin-tube |
| CN101988176A (en) * | 2009-07-31 | 2011-03-23 | 扬州龙川钢管有限公司 | Structural alloy steel and processing technology for preparing heat-insulating oil tube from same |
| CN101988372A (en) * | 2009-07-31 | 2011-03-23 | 扬州龙川钢管有限公司 | Processing technology for manufacturing insulated tubing |
| CN103317305A (en) * | 2013-06-08 | 2013-09-25 | 宝鸡市天瑞有色金属材料有限责任公司 | Process for manufacturing small-bore nickel base alloy seamless square tubes |
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| CN103846304A (en) * | 2012-11-28 | 2014-06-11 | 常州盛德无缝钢管有限公司 | ND steel seamless steel pipe production process |
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2016
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|---|---|---|---|---|
| CN85101434A (en) * | 1985-04-01 | 1985-10-10 | 国营青岛钢厂 | Manufacture of fin-tube |
| CN101988176A (en) * | 2009-07-31 | 2011-03-23 | 扬州龙川钢管有限公司 | Structural alloy steel and processing technology for preparing heat-insulating oil tube from same |
| CN101988372A (en) * | 2009-07-31 | 2011-03-23 | 扬州龙川钢管有限公司 | Processing technology for manufacturing insulated tubing |
| CN103846304A (en) * | 2012-11-28 | 2014-06-11 | 常州盛德无缝钢管有限公司 | ND steel seamless steel pipe production process |
| CN103317305A (en) * | 2013-06-08 | 2013-09-25 | 宝鸡市天瑞有色金属材料有限责任公司 | Process for manufacturing small-bore nickel base alloy seamless square tubes |
| CN103624095A (en) * | 2013-11-21 | 2014-03-12 | 中国钢研科技集团有限公司 | Production process of precise cold-drawn steel pipe |
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| Title |
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| "冷拔小径精密管生产工艺研究与实践";李旭升等;《金属材料与冶金工程》;20090630;第37卷(第3期);第46-48页 |
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Address after: No. 8, Daming Middle Road, Yaoguan Town, Wujin District, Changzhou City, Jiangsu Province, 213000 Patentee after: Jiangsu Hongyi Precision Industry Co.,Ltd. Address before: 213000 industrial concentration zone, Xinnan village, Yaoguan Town, Wujin District, Changzhou City, Jiangsu Province Patentee before: JIANGSU HONGYI STEEL PIPE CO.,LTD. |
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