CN101130197A - Cold drawing, cold rolling production method for high-accuracy weldless steel tube - Google Patents
Cold drawing, cold rolling production method for high-accuracy weldless steel tube Download PDFInfo
- Publication number
- CN101130197A CN101130197A CNA2007101538844A CN200710153884A CN101130197A CN 101130197 A CN101130197 A CN 101130197A CN A2007101538844 A CNA2007101538844 A CN A2007101538844A CN 200710153884 A CN200710153884 A CN 200710153884A CN 101130197 A CN101130197 A CN 101130197A
- Authority
- CN
- China
- Prior art keywords
- cold
- pipe
- production method
- welding
- drawn
- Prior art date
- 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.)
- Pending
Links
Images
Landscapes
- Heat Treatment Of Steel (AREA)
Abstract
The invention discloses a cold-drawing and cold-rolling manufacturing method of high-precision seamless steel pipe, which comprises the following steps: doing pipe formation procedure for the front part to cut edge of raw material steel, mould round tube, weld, remove the welded burr, detect the standard product to enter subsequent disposing procedure; doing back disposal procedure to heat, beat, wash through acid, phosphorized, saponify; rolling the mould with inner core; annealing; aligning; cutting head and tail; detecting flaw; bulging; testing; packing; storing. The invention saves energy and cost with simple operation and even wall thickness, which can replace common seamless steel pipe, low-middle pressure boiler pipe and steel pipe of the fluid completely.
Description
The application divides an application, and the applying date of original application is on September 26th, 2006, and application number is 200610152647.1, and invention and created name is " production method of high-accuracy weldless steel tube ".
Technical field
The present invention relates to a kind of production method of seamless steel pipe, is a kind of method that adopts the band steel to produce high-accuracy weldless steel tube.
Background technology
The production method of existing seamless steel pipe mainly comprises the hot-rolled pipe production technology, cold rolling, cold-drawn production:
Technology and welded tube add tension reducing mill seamless process technology, and all there are some shortcomings in they, are described below respectively:
(1), hot-rolled pipe production technology: mainly comprise surface treatment, cut off, feel relieved, heat, anterior operation such as perforation, and tube rolling, expansion, sizing, cooling, detect a flaw, suppress rear portion treatment process such as check, packing warehouse-in.Owing to be to adopt hot-rolling perforation machine, pipe in the perforation deformation process, stressed complexity, the distortion environment is abominable, so there is following shortcoming:
A, require the inside and outside quality height of pipe, otherwise produce defectives such as hollow forging folds inside and outside being prone to, is mingled with, small opening.
B, wall unevenness are serious.
C, because the wall unevenness problem, in using the steel pipe process, cause the waste that makes about 20% more, it is concentrated that thinnest part easily produces stress.
D, become hollow hollow forging by solid pipe, the big energy consumption height of deflection, cost increases.
E, because the crop end amount is big, and lumber recovery is low, generally at 85-90%, increase cost.
F, perforation require heating-up temperature, generally about 1200-1250 ℃, and the height that can disappear, scaling loss increases, and cost increases.
(2), cold rolling, cold-drawn production technology: mainly comprise surface treatment, cut off, feel relieved, heat, anterior operation such as perforation, and rear portion treatment process such as tup, pickling, phosphatization and saponification, cold rolling or cold-drawn, annealing, cutting head cutting tail, check, flaw detection, packing warehouse-in.There is following shortcoming:
A, except that all shortcomings that have above-mentioned hot rolling technology because the production passage increases, cause lumber recovery to descend, raw material and energy consumption increase, cost increases, general lumber recovery is about 70 one 85%, every increase a time, cost increases about 200 yuan/ton.
B, wall unevenness are still serious.
(3), welded tube adds tension reducing mill seamless process technology: mainly comprise: with the side cut of raw band steel, shaping round tube, welding, removal welding burr, heating, tube reducing, cooling on stretch-reducing mill, detect a flaw, suppress check, pack operations such as warehouse-in.Its shortcoming is: through tube rolling add inner core extruding, rolling, roll real weld seam, can not make weld seam consistent with maternal tissue, weld strength is low.The weld seam vestige can't be eliminated, weld seam can also be seen.
Summary of the invention
Purpose of the present invention just provides a kind of cold-drawn of high-accuracy weldless steel tube, cold rolling production method, to solve the production cost height that prior art exists, can't eliminate the low problem of weld seam vestige and weld strength.
Technical scheme of the present invention is: comprise anterior one-tenth plumber's preface and rear portion treatment process, describedly anterior become plumber's preface to comprise operation: the certified products after the side cut of raw band steel, shaping round tube, welding, removal welding burr, the check are entered the rear portion treatment process, and it is characterized in that: described rear portion treatment process comprises operation: the draw of core or rolling, annealing, aligning, cutting head cutting tail in heating, tup, pickling, phosphatization and saponification, the band, detect a flaw, suppress check, packing is put in storage.
The heating-up temperature of described heating process is 950 ℃ ± 50 ℃.
Described shaping round tube operation adopts texturing machine will be with steel to be shaped to the pipe shape.
The abutment joint of pipe behind the described welding sequence employing high-frequency welding tube mill welding fabrication.
Advantage of the present invention is: produce seamless steel pipe with the band steel, technology is simple, energy-saving and cost-reducing, cost is low, simple to operate, the operating rate height, wall thickness is even, welded tube performance and chemical composition aspect all can reach the standard-required of seamless pipe, and various fields can replace general seamless steel pipe, low medium-pressure boiler pipe and fluid steel pipe fully.Through the inside and outside rolling welded tube of heating, no matter be interior at chemical composition, crystalline phase tissue and mechanical performance and physical dimension, all be better than the seamless pipe that former Process is produced.
Description of drawings
Fig. 1 cold-drawn of the present invention, cold-rolling process flow chart.
The specific embodiment
Referring to Fig. 1; cold-drawn of the present invention; cold-rolling process comprises operation: the edge of raw band steel is trimmed; shaping round tube (on texturing machine, will be with steel to be shaped to the pipe shape); welding (pipe behind the employing high-frequency welding tube mill welding fabrication); remove to weld burr (making the no step of the concordant slyness in weld seam position) with tube wall; check; (heating-up temperature is 950 ℃ ± 50 ℃ in heating; 20～30 minutes time); tup; pickling; phosphatization and saponification (lubricating layer); in the band draw of core or rolling (will be through heating; tup; welded tube after lubricated; roll and the draw of inner core or the extruding of rolling and inner core through external mold and the interior core or the cold-rolling mill of drawbench; make its tube reducing; subtract wall; extend; general cold-drawn sizing reduction is 15%～20%; cold rolling sizing reduction is 20%～30%, subtracts wall 0.3～2.Omm.Rolling real weld seam increases weld seam density and makes weld seam and tube wall size uniformity does not have the weld seam vestige), annealing (be used for eliminating and roll draw stress), aligning, cutting head cutting tail, detect a flaw, suppress check, pack and put in storage.
The present invention has following characteristics:
(1), with the raw material of the ratio-frequency welded tube of removing the weld seam burr as band inner core pipe mill, raw band steel price is low; The ratio-frequency welded tube production technology is simple, cost is low, energy-conservation, lumber recovery is high, even tube wall precision height, production accident is few, operating rate is high, output is high.
(2), because the dimensional accuracy of welded tube is far longer than the dimensional accuracy of punch hollow forging, improves the stability of later process tube rolling and sizing mill production control operation greatly, can improve operating rate and output greatly like this.
(3), aspect heating because heating is pipe rather than solid pipe,, can realize improving output so firing rate reduces oxidation soon, improve lumber recovery and reduce cost.
Because old technology heating filled circles steel billet requires heating-up temperature height (about 1250 ℃), heat time heating time is long, the easy oxidation of high temperature, and scaling loss increases lumber recovery and reduces, and cost increases.New technology heating temperature (about 950 ℃), heat time heating time short (can shorten 30～50 minutes heat time heating times), scaling loss reduces, and the rate of becoming a useful person reduces; Stove small investment, life-span increase.
(4), product size precision height, can surpass the requirement of the high class precision of seamless pipe, improve the use utilization rate about 20% of metal greatly, can be country and save great deal of steel, the few usage quantity of alkali.
(5), aspect production, simplified technology, deducted perforation and expansion technology, reduce cost, energy-conservation, the minimizing accident improves operating rate, increases output, reduces producers.
(6), saved punch, reeler and wear before equipment such as heating of pipe blank,,
(7), the preperforative solid heating of pipe blank of former technology is changed into directly carrot-free ratio-frequency welded tube being heated of existing technology.
(8), the band steel produces seamless steel pipe, technology is simple, energy-saving and cost-reducing, cost is low, and is simple to operate, the operating rate height can improve output.
A, ratio-frequency welded tube to the band steel require low, the excellent steel of general steel all can, band steel price is than the bad low 300-500 unit of pipe/ton.
About b, minimizing operating personnel 20 people.
C, energy-saving and cost-reducing, cost is low, and punch is whenever worn one ton of hollow forging and is needed about 350 yuan/ton, and one ton of pipe of the every production of ratio-frequency welded tube needs about 100 yuan/ton, only this item can reduce production costs 250 yuan/ton.
D, wall thickness are even, plus-minus tolerance can control ± 5% in.The utilization rate of steel pipe is improved greatly, for country saves steel pipe about 20%.
(9), reliable in quality: at present, raising along with domestic and international solder technology, at the standard-required that all can reach seamless pipe aspect the mechanical performance of international, domestic welded tube and the chemical composition, various fields can replace general seamless steel pipe, low medium-pressure boiler pipe and fluid steel pipe fully.Through the inside and outside rolling welded tube of heating, no matter be interior at chemical composition, crystalline phase tissue and mechanical performance and physical dimension, all be better than the seamless pipe that former Process is produced.
Claims (4)
1. the cold-drawn of a high-accuracy weldless steel tube, cold rolling production method, comprise anterior one-tenth plumber's preface and rear portion treatment process, describedly anterior become plumber's preface to comprise operation: the certified products after the side cut of raw band steel, shaping round tube, welding, removal welding burr, the check are entered the rear portion treatment process, and it is characterized in that: described rear portion treatment process comprises operation: the draw of core or rolling, annealing, aligning, cutting head cutting tail in heating, tup, pickling, phosphatization and saponification, the band, detect a flaw, suppress check, packing is put in storage.
2. the cold-drawn of high-accuracy weldless steel tube according to claim 1, cold rolling production method is characterized in that: the heating-up temperature of described heating process is 950 ℃ ± 50 ℃.
3. the cold-drawn of high-accuracy weldless steel tube according to claim 1, cold rolling production method is characterized in that: described shaping round tube operation adopts texturing machine will be with steel to be shaped to the pipe shape.
4. the cold-drawn of high-accuracy weldless steel tube according to claim 1, cold rolling production method is characterized in that: the abutment joint of pipe behind the described welding sequence employing high-frequency welding tube mill welding fabrication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101538844A CN101130197A (en) | 2006-09-26 | 2006-09-26 | Cold drawing, cold rolling production method for high-accuracy weldless steel tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007101538844A CN101130197A (en) | 2006-09-26 | 2006-09-26 | Cold drawing, cold rolling production method for high-accuracy weldless steel tube |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2006101526471A Division CN1923395A (en) | 2006-09-26 | 2006-09-26 | Production method for high precision seamless steel pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101130197A true CN101130197A (en) | 2008-02-27 |
Family
ID=39127693
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101538844A Pending CN101130197A (en) | 2006-09-26 | 2006-09-26 | Cold drawing, cold rolling production method for high-accuracy weldless steel tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101130197A (en) |
Cited By (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100558504C (en) * | 2008-04-28 | 2009-11-11 | 江阴市界达特异制管有限公司 | The low temperature resistant oil derrick power transmission tower frame preparation method of seamless heterotype steel pipe |
| CN102172822A (en) * | 2011-03-24 | 2011-09-07 | 上海奉贤钢管厂 | Processing technology for high-precision heavy wall pipe |
| CN101559446B (en) * | 2009-05-25 | 2012-02-15 | 广州永大不锈钢有限公司 | Method for preparing welded stainless steel pipe of boiler |
| CN102405116A (en) * | 2009-04-24 | 2012-04-04 | 阿里汉家用设备有限公司 | A low carbon welded tube and process of manufacture thereof |
| CN103157696A (en) * | 2013-03-08 | 2013-06-19 | 河北华通线缆集团有限公司 | Stainless steel pipe manufacturing method and application of stainless steel pipe in electric cable of submersible pump |
| CN103191953A (en) * | 2013-03-28 | 2013-07-10 | 温州市富田不锈钢管有限公司 | Manufacture method of seamless steel tube by using stainless welded tube |
| CN103292064A (en) * | 2013-06-20 | 2013-09-11 | 江苏丰立精密制管有限公司 | Manufacturing method for steel tubes for supplemental restraint system |
| CN103302133A (en) * | 2013-06-27 | 2013-09-18 | 宜昌中南精密钢管有限公司 | Precise cold-drawing method of high-precision high-strength 30CrMnSi seamless steel tube |
| CN103591118A (en) * | 2013-11-19 | 2014-02-19 | 无锡苏嘉法斯特汽车零配件有限公司 | Manufacturing technology of transmission shaft tube |
| CN104646931A (en) * | 2013-11-16 | 2015-05-27 | 无锡大金高精度冷拔钢管有限公司 | Manufacturing method of cold drawn welded pipe for precision oil cylinder |
| CN104785524A (en) * | 2015-04-21 | 2015-07-22 | 湖州人新轴承钢管有限公司 | Cold-rolled steel tube tail-cropping-free production technology |
| CN106216957A (en) * | 2016-08-18 | 2016-12-14 | 无锡苏嘉法斯特汽车零配件有限公司 | The manufacture method of torsion beam of automobile welded still pipe |
| CN106216956A (en) * | 2016-08-18 | 2016-12-14 | 无锡苏嘉法斯特汽车零配件有限公司 | The manufacture method of vehicle transmission central siphon |
| CN106216955A (en) * | 2016-08-18 | 2016-12-14 | 无锡苏嘉法斯特汽车零配件有限公司 | special steel transmission shaft tube manufacturing process |
| CN106216959A (en) * | 2016-08-18 | 2016-12-14 | 无锡苏嘉法斯特汽车零配件有限公司 | The manufacture method of automobile frame welded still pipe |
| CN106238500A (en) * | 2016-08-22 | 2016-12-21 | 黄卫国 | A kind of production technology rolling monolithic finned tube seamless steel pipe |
| CN107838221A (en) * | 2017-11-07 | 2018-03-27 | 浙江义腾特种钢管有限公司 | A kind of steel tube seamless handling process |
| CN110052792A (en) * | 2019-05-09 | 2019-07-26 | 江苏淮龙装备科技有限公司 | A kind of manufacturing method of hydraulic cylinder cylinder barrel |
| CN110434560A (en) * | 2019-08-19 | 2019-11-12 | 扬州吉星机械有限公司 | A kind of abnormity welded tube process equipment and its processing technology |
| CN112846654A (en) * | 2020-12-29 | 2021-05-28 | 常德迪格机械制造有限公司 | Manufacturing method of cold-drawn welded pipe for precision oil cylinder |
| CN114210761A (en) * | 2021-12-30 | 2022-03-22 | 武汉市博钛新材料科技有限公司 | High-frequency induction seamless titanium welded pipe and production method thereof |
| CN114733927A (en) * | 2022-04-21 | 2022-07-12 | 山东汇通工业制造有限公司 | Seamless steel pipe for 40CrB track pin bush |
-
2006
- 2006-09-26 CN CNA2007101538844A patent/CN101130197A/en active Pending
Cited By (30)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100558504C (en) * | 2008-04-28 | 2009-11-11 | 江阴市界达特异制管有限公司 | The low temperature resistant oil derrick power transmission tower frame preparation method of seamless heterotype steel pipe |
| CN102405116A (en) * | 2009-04-24 | 2012-04-04 | 阿里汉家用设备有限公司 | A low carbon welded tube and process of manufacture thereof |
| CN101559446B (en) * | 2009-05-25 | 2012-02-15 | 广州永大不锈钢有限公司 | Method for preparing welded stainless steel pipe of boiler |
| CN102172822A (en) * | 2011-03-24 | 2011-09-07 | 上海奉贤钢管厂 | Processing technology for high-precision heavy wall pipe |
| CN103157696B (en) * | 2013-03-08 | 2015-07-22 | 河北华通线缆集团有限公司 | Stainless steel pipe manufacturing method and application of stainless steel pipe in electric cable of submersible pump |
| CN103157696A (en) * | 2013-03-08 | 2013-06-19 | 河北华通线缆集团有限公司 | Stainless steel pipe manufacturing method and application of stainless steel pipe in electric cable of submersible pump |
| CN103191953A (en) * | 2013-03-28 | 2013-07-10 | 温州市富田不锈钢管有限公司 | Manufacture method of seamless steel tube by using stainless welded tube |
| CN103292064A (en) * | 2013-06-20 | 2013-09-11 | 江苏丰立精密制管有限公司 | Manufacturing method for steel tubes for supplemental restraint system |
| CN103302133A (en) * | 2013-06-27 | 2013-09-18 | 宜昌中南精密钢管有限公司 | Precise cold-drawing method of high-precision high-strength 30CrMnSi seamless steel tube |
| CN103302133B (en) * | 2013-06-27 | 2015-10-28 | 宜昌中南精密钢管有限公司 | The precise cold draw out method of a kind of high accuracy, high strength 30CrMnSi seamless steel pipe |
| CN104646931A (en) * | 2013-11-16 | 2015-05-27 | 无锡大金高精度冷拔钢管有限公司 | Manufacturing method of cold drawn welded pipe for precision oil cylinder |
| CN103591118A (en) * | 2013-11-19 | 2014-02-19 | 无锡苏嘉法斯特汽车零配件有限公司 | Manufacturing technology of transmission shaft tube |
| CN104785524A (en) * | 2015-04-21 | 2015-07-22 | 湖州人新轴承钢管有限公司 | Cold-rolled steel tube tail-cropping-free production technology |
| CN104785524B (en) * | 2015-04-21 | 2017-01-25 | 湖州人新轴承钢管有限公司 | Cold-rolled steel tube tail-cropping-free production technology |
| CN106216956A (en) * | 2016-08-18 | 2016-12-14 | 无锡苏嘉法斯特汽车零配件有限公司 | The manufacture method of vehicle transmission central siphon |
| CN106216959B (en) * | 2016-08-18 | 2018-03-30 | 无锡苏嘉法斯特汽车零配件有限公司 | The manufacture method of automobile frame welded still pipe |
| CN106216959A (en) * | 2016-08-18 | 2016-12-14 | 无锡苏嘉法斯特汽车零配件有限公司 | The manufacture method of automobile frame welded still pipe |
| CN106216955A (en) * | 2016-08-18 | 2016-12-14 | 无锡苏嘉法斯特汽车零配件有限公司 | special steel transmission shaft tube manufacturing process |
| CN106216957A (en) * | 2016-08-18 | 2016-12-14 | 无锡苏嘉法斯特汽车零配件有限公司 | The manufacture method of torsion beam of automobile welded still pipe |
| CN106216957B (en) * | 2016-08-18 | 2018-01-05 | 无锡苏嘉法斯特汽车零配件有限公司 | The manufacture method of torsion beam of automobile welded still pipe |
| CN106216955B (en) * | 2016-08-18 | 2018-01-23 | 无锡苏嘉法斯特汽车零配件有限公司 | special steel transmission shaft tube manufacturing process |
| CN106216956B (en) * | 2016-08-18 | 2018-03-30 | 无锡苏嘉法斯特汽车零配件有限公司 | The manufacture method of vehicle transmission central siphon |
| CN106238500B (en) * | 2016-08-22 | 2018-09-07 | 臧东生 | A kind of production technology of rolling monolithic finned tube seamless steel pipe |
| CN106238500A (en) * | 2016-08-22 | 2016-12-21 | 黄卫国 | A kind of production technology rolling monolithic finned tube seamless steel pipe |
| CN107838221A (en) * | 2017-11-07 | 2018-03-27 | 浙江义腾特种钢管有限公司 | A kind of steel tube seamless handling process |
| CN110052792A (en) * | 2019-05-09 | 2019-07-26 | 江苏淮龙装备科技有限公司 | A kind of manufacturing method of hydraulic cylinder cylinder barrel |
| CN110434560A (en) * | 2019-08-19 | 2019-11-12 | 扬州吉星机械有限公司 | A kind of abnormity welded tube process equipment and its processing technology |
| CN112846654A (en) * | 2020-12-29 | 2021-05-28 | 常德迪格机械制造有限公司 | Manufacturing method of cold-drawn welded pipe for precision oil cylinder |
| CN114210761A (en) * | 2021-12-30 | 2022-03-22 | 武汉市博钛新材料科技有限公司 | High-frequency induction seamless titanium welded pipe and production method thereof |
| CN114733927A (en) * | 2022-04-21 | 2022-07-12 | 山东汇通工业制造有限公司 | Seamless steel pipe for 40CrB track pin bush |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101130197A (en) | Cold drawing, cold rolling production method for high-accuracy weldless steel tube | |
| CN1923395A (en) | Production method for high precision seamless steel pipe | |
| CN102873512B (en) | The manufacture method of thick-walled seamless steel pipes in used in nuclear power station heavy caliber | |
| CN101722262B (en) | New method for producing medium and large caliber alloy steel seamless pipe by utilizing radial forging technology | |
| CN102294379B (en) | Method for manufacturing seamless steel pipe for high-pressure gas cylinder with large caliber | |
| CN101398165B (en) | Major vapour inlet/outlet joint pipe for nuclear plant steam generator and forging method thereof | |
| CN101687232B (en) | Method for producing ultra thin wall metallic tube by cold rolling method | |
| CN104475479B (en) | A kind of technique utilizing swaging techniques to prepare small-diameter thick-walled metal tube | |
| CN101376204A (en) | Novel technique for producing seamless steel pipe | |
| CN103722346A (en) | Corrosion-resistant metallurgical composite bimetal longitudinal submerged-arc welded steel pipe and method for manufacturing same | |
| CN102527722B (en) | Perforating and rolling equipment and method of high-alloy and hard-deformation seamless steel tube | |
| CN110394410A (en) | A method of preparing big specification male sportsman fine grain bar | |
| CN101579703A (en) | New technique for manufacturing high alloy steel seamless pipe with heavy calibre by adopting pilger mill | |
| CN109365700A (en) | Complicated arc variable cross-section forging closes forging rolloff manufacturing process | |
| CN101439365B (en) | Method for rolling seamless steel pipe from die-casting hollow steel ingot | |
| CN113414330B (en) | Forging process for completing through hole of support shaft by one-step extrusion | |
| CN101020192A (en) | Hot rolling process of seamless steel pipe | |
| CN102166611A (en) | Long bar continuously upsetting device and method for railway wagon brake pull rod | |
| CN103121047B (en) | Roll bending welds the method that C.P.Ti tube is made in compacting of putting english | |
| CN107900134A (en) | A kind of main pipeline forming technology with ozzle | |
| CN102873126B (en) | Manufacturing method of large-aperture thin-walled seamless steel tube for nuclear power plant | |
| CN102152070A (en) | Method for manufacturing ring-shaped piece | |
| CN202045311U (en) | Continuous heading device for long bar stock of brake pull bar of railway freight car | |
| CN101579816B (en) | New method for manufacturing high alloy steel seamless pipe with heavy calibre by adopting steel pipe continuous rolling mill | |
| CN103191953A (en) | Manufacture method of seamless steel tube by using stainless welded tube |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20080227 |