CN109604369A - Precision seamless steel tubes production technology - Google Patents
Precision seamless steel tubes production technology Download PDFInfo
- Publication number
- CN109604369A CN109604369A CN201811074980.4A CN201811074980A CN109604369A CN 109604369 A CN109604369 A CN 109604369A CN 201811074980 A CN201811074980 A CN 201811074980A CN 109604369 A CN109604369 A CN 109604369A
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- CN
- China
- Prior art keywords
- steel pipe
- temperature
- heating
- tempering
- embryo material
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- 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.)
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Classifications
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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
Abstract
The present invention relates to a kind of precision seamless steel tubes production technologies, comprising the following steps: blanking: steel pipe raw material is pushed into push machine；Heating: heating steel pipe embryo material using natural gas hot-blast stove, and heating temperature is 1180-1200 DEG C；Perforation molding: perforation is carried out to steel pipe embryo material by punch and obtains steel pipe；Finish rolling: it is rolled by three roller finishing mills, pipe diameter, outer diameter is machined to specified size；Quenching: hardening media is water, and water temperature is 20-40 DEG C, and temperature of steel pipe is 830-850 DEG C after quenching；Tempering: steel pipe is sent into tempering furnace, tempering temperature is 550-620 DEG C, and the time is 20-30 minutes；It is relatively straight: straightening being carried out to steel pipe through straightener；Realize that the tube reducing of seamless steel pipe increases wall in this technique finish rolling production process, it is more durable relative to existing seamless steel pipe with stable stabilizing mechanical performance and better processing finish suitable for steel pipe embryo material and waste and old steel pipe, it is improved hardness, plasticity, toughness all, is more conducively machined.
Description
Technical field
The present invention relates to steel pipe processing technique field more particularly to a kind of precision seamless steel tubes production technologies.
Background technique
Traditional seamless steel tube production technique is generally all produced for round steel embryo material, is not suitable on seamless steel pipe
It is directly transformed, causes production at high cost, and some waste and old seamless steel pipe values are low, it can not be normal as product again
It utilizes.
Summary of the invention
In order to solve deficiency in the prior art, the purpose of the present invention is to provide a kind of precision seamless steel tubes to produce work
Skill.
The technical solution adopted by the present invention to solve the technical problems is:
A kind of precision seamless steel tubes production technology, which comprises the following steps:
Type classification: it is arranged according to steel pipe embryo material size classes；
Blanking: steel pipe embryo material is pushed into push machine；
Heating: heating steel pipe embryo material using natural gas hot-blast stove, and heating temperature is 1180-1200 DEG C；
Perforation molding: perforation is carried out to steel pipe embryo material by punch and obtains steel pipe；
Finish rolling: it is rolled by three roller finishing mills, pipe diameter, outer diameter is machined to specified size；
Quenching: hardening media is water, and water temperature is 20-40 DEG C, and temperature of steel pipe is 830-850 DEG C after quenching；
Tempering: steel pipe is sent into tempering furnace, tempering temperature is 550-620 DEG C, and the time is 20-30 minutes；
It is relatively straight: straightening being carried out to steel pipe through straightener；
Fixed ruler cutting: according to drawing requirement, the steel pipe of predetermined size is cut by sawing machine；
Drop-head: according to drawing requirement, variable diameter processing is carried out to steel tube end part by shrinkage cavity machine；
Tack: according to drawing requirement, steel tube end part is processed by tack lathe；
Verification: testing to the product completed the process, and passer is put in storage storage.
The beneficial effects of the present invention are: realizing that the tube reducing of seamless steel pipe increases wall in this technique finish rolling production process, it is suitable for
Steel pipe embryo material and waste and old steel pipe, with stable stabilizing mechanical performance and better processing finish, relative to existing seamless steel
It manages more durable, is improved hardness, plasticity, toughness all, is more conducively machined.
Specific embodiment
Embodiments of the present invention are illustrated by particular specific embodiment below, those skilled in the art can be by this explanation
Content disclosed by book is understood other advantages and efficacy of the present invention easily.
The present embodiment provides a kind of precision seamless steel tubes production technologies, which comprises the following steps:
Type classification: it is arranged according to steel pipe embryo material size classes；
Blanking: steel pipe embryo material is pushed into push machine；
Heating: heating steel pipe embryo material using natural gas hot-blast stove, and heating temperature is 1180-1200 DEG C；
Perforation molding: perforation is carried out to steel pipe embryo material by punch and obtains steel pipe；
Finish rolling: it is rolled by three roller finishing mills, pipe diameter, outer diameter is machined to specified size；
Quenching: hardening media is water, and water temperature is 20-40 DEG C, and temperature of steel pipe is 830-850 DEG C after quenching；
Tempering: steel pipe is sent into tempering furnace, tempering temperature is 550-620 DEG C, and the time is 20-30 minutes；
It is relatively straight: straightening being carried out to steel pipe through straightener；
Fixed ruler cutting: according to drawing requirement, the steel pipe of predetermined size is cut by sawing machine；
Drop-head: according to drawing requirement, variable diameter processing is carried out to steel tube end part by shrinkage cavity machine；
Tack: according to drawing requirement, steel tube end part is processed by tack lathe；
Verification: testing to the product completed the process, and passer is put in storage storage.
This technique is suitable for steel pipe embryo material and steel scrap pipe, is processed into finished product by identical technique, makes the steel of diameter 89*6
Pipe embryo material and steel scrap pipe reach diameter 53.5*8.5 or diameter 44.2*7.5, to realize that tube reducing increases wall.
The above description is only a preferred embodiment of the present invention, as long as achieving the object of the present invention skill with essentially identical means
Art scheme, belongs within protection scope of the present invention.
Claims (3)
1. a kind of precision seamless steel tubes production technology, which comprises the following steps:
Blanking: steel pipe raw material is pushed into push machine；
Heating: heating steel pipe embryo material using natural gas hot-blast stove, and heating temperature is 1180-1200 DEG C；
Perforation molding: perforation is carried out to steel pipe embryo material by punch and obtains steel pipe；
Finish rolling: it is rolled by three roller finishing mills, pipe diameter, outer diameter is machined to specified size；
Quenching: hardening media is water, and water temperature is 20-40 DEG C, and temperature of steel pipe is 830-850 DEG C after quenching；
Tempering: steel pipe is sent into tempering furnace, tempering temperature is 550-620 DEG C, and the time is 20-30 minutes；
It is relatively straight: straightening being carried out to steel pipe through straightener.
2. precision seamless steel tubes production technology according to claim 1, which is characterized in that further comprise and be located at more straight step
The procedure mended afterwards, specifically:
Drop-head: according to drawing requirement, variable diameter processing is carried out to steel tube end part by shrinkage cavity machine.
3. precision seamless steel tubes production technology according to claim 1, which is characterized in that further comprise and be located at more straight step
The procedure mended afterwards, specifically:
Tack: according to drawing requirement, steel tube end part is processed by tack lathe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811074980.4A CN109604369A (en) | 2018-09-14 | 2018-09-14 | Precision seamless steel tubes production technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811074980.4A CN109604369A (en) | 2018-09-14 | 2018-09-14 | Precision seamless steel tubes production technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109604369A true CN109604369A (en) | 2019-04-12 |
Family
ID=66002157
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811074980.4A Pending CN109604369A (en) | 2018-09-14 | 2018-09-14 | Precision seamless steel tubes production technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109604369A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110788160A (en) * | 2019-11-07 | 2020-02-14 | 鑫鹏源智能装备集团有限公司 | Seamless steel tube production system and process |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189111A (en) * | 1996-04-19 | 1998-07-29 | 住友金属工业株式会社 | Seamless steel pipe manufacturing method and equipment |
| US20040074570A1 (en) * | 2000-09-01 | 2004-04-22 | Trw Inc. | Method of producing a cold temperature high toughness structural steel tubing |
| CN101249506A (en) * | 2008-04-02 | 2008-08-27 | 王剑波 | Posted sides seamless steel pipe roller milling method |
| CN101259588A (en) * | 2008-04-28 | 2008-09-10 | 洛阳邦强机械有限公司 | Fewer stands longitudinal hot rolling minor diameter thin wall seamless steel tube rolling technique and equipment thereof |
| US20090044883A1 (en) * | 2004-10-25 | 2009-02-19 | V & M Deutschland Gmbh | Method of making a seamless hot-finished steel pipe, and device for carrying out the method |
| JP2012170982A (en) * | 2011-02-22 | 2012-09-10 | Jfe Steel Corp | Method and equipment for expanding and processing steel tube |
| CN102725428A (en) * | 2010-01-27 | 2012-10-10 | 住友金属工业株式会社 | Production method for seamless steel pipe used in line pipe, and seamless steel pipe used in line pipe |
| CN105983578A (en) * | 2015-01-30 | 2016-10-05 | 重庆君卓机械有限公司 | Production process of hot-rolled steel tubes |
| CN107695626A (en) * | 2017-10-09 | 2018-02-16 | 苏州宝新无缝钢管有限公司 | A kind of construction technology of high-strength seamless steel pipe and products thereof and application |
-
2018
- 2018-09-14 CN CN201811074980.4A patent/CN109604369A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1189111A (en) * | 1996-04-19 | 1998-07-29 | 住友金属工业株式会社 | Seamless steel pipe manufacturing method and equipment |
| US20040074570A1 (en) * | 2000-09-01 | 2004-04-22 | Trw Inc. | Method of producing a cold temperature high toughness structural steel tubing |
| US20090044883A1 (en) * | 2004-10-25 | 2009-02-19 | V & M Deutschland Gmbh | Method of making a seamless hot-finished steel pipe, and device for carrying out the method |
| CN101249506A (en) * | 2008-04-02 | 2008-08-27 | 王剑波 | Posted sides seamless steel pipe roller milling method |
| CN101259588A (en) * | 2008-04-28 | 2008-09-10 | 洛阳邦强机械有限公司 | Fewer stands longitudinal hot rolling minor diameter thin wall seamless steel tube rolling technique and equipment thereof |
| CN102725428A (en) * | 2010-01-27 | 2012-10-10 | 住友金属工业株式会社 | Production method for seamless steel pipe used in line pipe, and seamless steel pipe used in line pipe |
| JP2012170982A (en) * | 2011-02-22 | 2012-09-10 | Jfe Steel Corp | Method and equipment for expanding and processing steel tube |
| CN105983578A (en) * | 2015-01-30 | 2016-10-05 | 重庆君卓机械有限公司 | Production process of hot-rolled steel tubes |
| CN107695626A (en) * | 2017-10-09 | 2018-02-16 | 苏州宝新无缝钢管有限公司 | A kind of construction technology of high-strength seamless steel pipe and products thereof and application |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110788160A (en) * | 2019-11-07 | 2020-02-14 | 鑫鹏源智能装备集团有限公司 | Seamless steel tube production system and process |
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| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190412 |