CN106140865A - The preparation method of seamless steel pipe - Google Patents
The preparation method of seamless steel pipe Download PDFInfo
- Publication number
- CN106140865A CN106140865A CN201610543095.0A CN201610543095A CN106140865A CN 106140865 A CN106140865 A CN 106140865A CN 201610543095 A CN201610543095 A CN 201610543095A CN 106140865 A CN106140865 A CN 106140865A
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- carry out
- pipe
- phosphatization
- steel pipe
- saponification
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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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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
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Abstract
The present invention relates to the preparation method of a kind of seamless steel pipe, comprise the steps: 1) pipe is heated, heat after at the enterprising eleven punch 11 of perforating machine, punching head machine carries out drift；2) carry out pickling, phosphatization and saponification to process, on drawbench, after completing, carry out cold-drawn；3) heat treatment is carried out at annealing furnace；4) carry out pickling, phosphatization and saponification process, and carry out cold-drawn on drawbench after completing；5) carry out phosphatization and saponification to process, and carry out ungrease treatment after completing；6) on bundle head machine, carry out pricking head to process；7) carry out the 4th pickling, phosphatization and saponification process, and carry out cold-drawn on drawbench after completing；8) on bundle head machine, carry out pricking head to process；9) in anaerobic annealing furnace, heat treatment is carried out；10) on straightener, straightening processing is carried out；11) on pipe cutting machine, Pipe Cutting process is carried out.The present invention uses automatic charging, saves labour, and can two steel pipes cold-drawns simultaneously, improve the efficiency of cold drawing steel tube.
Description
Technical field
The present invention relates to the preparation method of a kind of seamless steel pipe.
Background technology
Seamless steel pipe is that one has hollow section, periphery does not has jointed strip steel.Seamless steel pipe is because having hollow
Cross section, so being used as the pipeline of conveyance fluid in a large number, such as transfer oil, natural gas, coal gas and water and the pipeline of some solid material
Deng.Compared with the solid steel such as seamless steel pipe and round steel, 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 executed
Steel scaffold etc. in work, manufactures ring-shaped work pieces with seamless steel pipe, can improve stock utilization, simplifies manufacturing process, saves
Material and machining period, such as rolling bearing lasso, very heavy top cover etc., the most extensive seamless steel pipe manufactures.Seamless steel pipe
Or the indispensable material of various conventional weapons, gun barrel, gun barrel etc. will manufacture by seamless steel pipe.
Traditional seamless steel pipe manufactures the poor surface smoothness of not only steel pipe, and the end of steel pipe can produce stress, leads
Cause steel tube end part ftractures.
Summary of the invention
It is an object of the invention to provide a kind of seamless steel pipe surface smoothness good, the seamless steel that steel tube end part will not ftracture
The preparation method of pipe.
In order to achieve the above object, the technical scheme is that the preparation method of a kind of seamless steel pipe, including walking as follows
Rapid:
1) pipe is heated, heat after at the enterprising eleven punch 11 of perforating machine, punching head machine carries out drift；
2) carry out for the first time pickling, phosphatization and saponification to process, and on drawbench, carry out cold-drawn after completing；
3) carry out heat treatment at annealing furnace, use inert gas shielding；
4) carry out second time pickling, phosphatization and saponification process, and carry out cold-drawn on drawbench after completing；
5) carry out third time phosphatization and saponification processes, and carry out ungrease treatment after completing；Ungrease treatment can make steel tube surface
Fineness improve.
6) on bundle head machine, carry out pricking head for the first time to process, prick head machine and prick head machine for heating；
7) carry out the 4th pickling, phosphatization and saponification process, and carry out cold-drawn on drawbench after completing；
8) on bundle head machine, carry out second time and prick head process, prick head machine and prick head machine for heating；
9) in anaerobic annealing furnace, last heat treatment is carried out；
10) on straightener, straightening processing is carried out；
11) on pipe cutting machine, Pipe Cutting process is carried out.
After the 4th pickling, phosphatization and saponification process, whether meet product demand according to steel pipe, carry out the 5th subacid
Wash, phosphatization and saponification process.
Need pipe is tested before pipe heats, and cut off pipe.
Described carry out after Pipe Cutting on pipe cutting machine product inspection, nondestructive inspection detection.
Described nondestructive inspection detection detection after need to carry out antirust treatment, steel pipe is immersed in oil, the time is not less than 45
Minute.
Described pickling time is 50 minutes, and phosphating time is 10-20 minute, and saponification time is 5-20 minute.
Using after said structure, the seamless steel pipe of the present invention uses four pickling, phosphatization and saponification to process in manufacturing, the
Once, second time and after having processed for the 4th time, steel pipe directly carries out cold-drawn on drawbench, and right after third time process
Steel pipe carries out ungrease treatment.The surface smoothness of this manufacture method steel pipe improves.In third time with after having processed for the 4th time,
Steel pipe carrying out prick head process, and prick a machine and use heating to prick head machine, the Leading Edge Deformation stress relieving of steel pipe, end will not be opened
Split.
Detailed description of the invention
The present invention is further detailed explanation for below example.
A kind of preparation method of seamless steel pipe, it is characterised in that: comprise the steps:
1) pipe is heated, heat after at the enterprising eleven punch 11 of perforating machine, punching head machine carries out drift；
2) carry out for the first time pickling, phosphatization and saponification to process, and on drawbench, carry out cold-drawn after completing；
3) carry out heat treatment at annealing furnace, use inert gas shielding；In this step, steel pipe carries out heat treatment for the first time,
Improve the mechanical performance of steel pipe, eliminate part stress.
4) carry out second time pickling, phosphatization and saponification process, and carry out cold-drawn on drawbench after completing；In this step
In Zhou, steel pipe carries out second time and processes, good antirust property.
5) carry out third time phosphatization and saponification processes, and carry out ungrease treatment after completing；After defat, the surface light of steel pipe
Cleanliness improves.
6) on bundle head machine, carry out pricking head for the first time to process, prick head machine and prick head machine for heating；After pricking the heating of head machine, can make
The end stress of steel pipe eliminates, and will not ftracture.
7) carry out the 4th pickling, phosphatization and saponification process, and carry out cold-drawn on drawbench after completing；
8) on bundle head machine, carry out second time and prick head process, prick head machine and prick head machine for heating；The end eliminating steel pipe further should
Power.
9) in anaerobic annealing furnace, last heat treatment is carried out；Improve the mechanical performance of steel pipe.
10) on straightener, straightening processing is carried out；
11) on pipe cutting machine, Pipe Cutting process is carried out.
After the 4th pickling, phosphatization and saponification process, whether meet product demand according to steel pipe, carry out the 5th subacid
Wash, phosphatization and saponification process.
Need pipe is tested before pipe heats, and cut off pipe.Inspection includes tensile strength, surrender
Intensity and the inspection of percentage elongation thereof.
Described carry out after Pipe Cutting on pipe cutting machine product inspection, nondestructive inspection detection, flaw detection use eddy current testing equipment carry out.
Described nondestructive inspection detection detection after need to carry out antirust treatment, steel pipe is immersed in oil, the time is not less than 45
Minute.
Described pickling time is 50 minutes, and phosphating time is 10-20 minute, and saponification time is 5-20 minute.
Above-described is only the 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, it is also possible to make some deformation and improvement, these broadly fall into the present invention
Protection domain.
Claims (6)
1. the preparation method of a seamless steel pipe, it is characterised in that: comprise the steps:
1) pipe is heated, heat after at the enterprising eleven punch 11 of perforating machine, punching head machine carries out drift；
2) carry out for the first time pickling, phosphatization and saponification to process, and on drawbench, carry out cold-drawn after completing；
3) carry out heat treatment at annealing furnace, use inert gas shielding；
4) carry out second time pickling, phosphatization and saponification process, and carry out cold-drawn on drawbench after completing；
5) carry out third time phosphatization and saponification processes, and carry out ungrease treatment after completing；
6) on bundle head machine, carry out pricking head for the first time to process, prick head machine and prick head machine for heating；
7) carry out the 4th pickling, phosphatization and saponification process, and carry out cold-drawn on drawbench after completing；
8) on bundle head machine, carry out second time and prick head process, prick head machine and prick head machine for heating；
9) in anaerobic annealing furnace, last heat treatment is carried out；
10) on straightener, straightening processing is carried out；
11) on pipe cutting machine, Pipe Cutting process is carried out.
The preparation method of seamless steel pipe the most according to claim 1, it is characterised in that: at the 4th pickling, phosphatization and soap
After change processes, carry out the 5th pickling, phosphatization and saponification and process.
The preparation method of seamless steel pipe the most according to claim 1, it is characterised in that: it is right to need before pipe heats
Pipe is tested, and cuts off pipe.
The preparation method of seamless steel pipe the most according to claim 1, it is characterised in that: described on pipe cutting machine Pipe Cutting laggard
Row product inspection, nondestructive inspection detection.
The preparation method of seamless steel pipe the most according to claim 4, it is characterised in that: described in nondestructive inspection detection detection
After need to carry out antirust treatment, steel pipe is immersed in oil, the time is not less than 45 minutes.
The preparation method of seamless steel pipe the most according to claim 1, it is characterised in that: described pickling time is 50 minutes,
Phosphating time is 10-20 minute, and saponification time is 5-20 minute.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610543095.0A CN106140865B (en) | 2016-07-12 | 2016-07-12 | The preparation method of seamless steel pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610543095.0A CN106140865B (en) | 2016-07-12 | 2016-07-12 | The preparation method of seamless steel pipe |
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| CN106140865A true CN106140865A (en) | 2016-11-23 |
| CN106140865B CN106140865B (en) | 2019-08-30 |
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| CN201610543095.0A Active CN106140865B (en) | 2016-07-12 | 2016-07-12 | The preparation method of seamless steel pipe |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| TWI744425B (en) * | 2016-11-25 | 2021-11-01 | 荷蘭商安科智諾貝爾化學國際公司 | Peroxide masterbatch |
| 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 |
| CN101988372A (en) * | 2009-07-31 | 2011-03-23 | 扬州龙川钢管有限公司 | Processing technology for manufacturing insulated tubing |
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| CN85101434A (en) * | 1985-04-01 | 1985-10-10 | 国营青岛钢厂 | Manufacture of fin-tube |
| CN101988372A (en) * | 2009-07-31 | 2011-03-23 | 扬州龙川钢管有限公司 | Processing technology for manufacturing insulated tubing |
| 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 |
| 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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| 上海战斗型钢厂等: "《小型异型钢材生产》", 28 October 1977 * |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI744425B (en) * | 2016-11-25 | 2021-11-01 | 荷蘭商安科智諾貝爾化學國際公司 | 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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| Publication number | Publication date |
|---|---|
| CN106140865B (en) | 2019-08-30 |
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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. |