CN108380692A - A kind of heavy wall stainless steel minor diameter rotary drum forming method - Google Patents

A kind of heavy wall stainless steel minor diameter rotary drum forming method Download PDF

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Publication number
CN108380692A
CN108380692A CN201810145169.4A CN201810145169A CN108380692A CN 108380692 A CN108380692 A CN 108380692A CN 201810145169 A CN201810145169 A CN 201810145169A CN 108380692 A CN108380692 A CN 108380692A
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CN
China
Prior art keywords
rotary drum
heavy
stainless steel
minor diameter
diameter rotary
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
Application number
CN201810145169.4A
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Chinese (zh)
Inventor
陈碧泉
王志
刘伟
王成
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Xiangtan Zhi Quan Machinery Co Ltd
Original Assignee
Xiangtan Zhi Quan Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Xiangtan Zhi Quan Machinery Co Ltd filed Critical Xiangtan Zhi Quan Machinery Co Ltd
Priority to CN201810145169.4A priority Critical patent/CN108380692A/en
Publication of CN108380692A publication Critical patent/CN108380692A/en
Pending legal-status Critical Current

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture 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
    • B21C37/08Making tubes with welded or soldered seams
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D5/00Bending sheet metal along straight lines, e.g. to form simple curves
    • B21D5/06Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles
    • B21D5/10Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes
    • B21D5/12Bending sheet metal along straight lines, e.g. to form simple curves by drawing procedure making use of dies or forming-rollers, e.g. making profiles for making tubes making use of forming-rollers
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26Methods of annealing
    • CCHEMISTRY; METALLURGY
    • C21METALLURGY OF IRON
    • C21DMODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/50Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for welded joints

Abstract

The present invention provides a kind of heavy wall stainless steel minor diameter rotary drum forming methods, include the following steps:1)Selection simultaneously carries out quality testing to it;2)To steel plate milling groove;3)U-shaped is processed into plank pre-bending;4)U-board material is rolled into O shapes;5)The split seam at O shape planks both ends is welded;And it detects a flaw to weld seam;6)Heat treatment process;7)Roll full circle;8)Workpiece after full circle is machined to finished product.The present invention realizes firm welding, close, raising rotary drum service life, and pre-bending and UO moldings reduce length of material, reduce waste of material, reduce manufacture difficulty;The present invention increases heat treatment after joint close welding, improves the organization mechanics performance of product, and hydraulic pressure rolling improves formed product precision.

Description

A kind of heavy wall stainless steel minor diameter rotary drum forming method
Technical field
The invention belongs to bowl production technical fields, are specifically related to a kind of heavy wall stainless steel minor diameter rotary drum Manufacturing method.
Background technology
Bowl is centrifuge core component, and rotary drum high speed rotation detaches liquid and solid using centrifugal force Grain.General 2205 dual phase steels of the material of rotary drum, manufacture big for waste of material in thick-wall small-diameter rotary drum manufacturing process Difficult, the problems such as welding quality is not high, drum barrel precision is not high.
Invention content
Can reduce waste of material amount in order to solve the above technical problem, the present invention provides one kind, reduce manufacture difficulty, Improve the manufacturing method of the heavy wall stainless steel minor diameter rotary drum of rotary drum quality.
The technical solution adopted by the present invention is:A kind of manufacturing method of heavy wall stainless steel minor diameter rotary drum, including it is following Step:
(1)It is rotary drum plank raw material to select 2205 dual phase sheet steels, and carries out quality testing to it;
(2)To two end mill welding groove of steel plate;
(3)Pre-bending processing is carried out to steel plate both ends using press and mold, by sheet fabrication at U-shaped;
(4)The U-board material obtained after pre-bending is rolled into O shapes by hydraulic pressure tumbler;
(5)The split seam at O shape planks both ends is welded;And it detects a flaw to weld seam;
(6)Heat treatment process is carried out to the workpiece after welding;
(7)Workpiece after heat treatment is placed in hydraulic pressure tumbler and rolls full circle;
(8)Workpiece after full circle is machined to finished product.
In the manufacturing method of above-mentioned heavy wall stainless steel minor diameter rotary drum, step 2)In, steel plate both ends open up upward slope Mouth and lower groove, upper bevel angle are 40 ° ~ 45 °, and lower bevel angle is 35 ° ~ 40 °.
In the manufacturing method of above-mentioned heavy wall stainless steel minor diameter rotary drum, step 4)In, it is closed after steel plate is rolled into O shapes Seam, misalignment control is in 1mm ~ 2mm when joint close.
In the manufacturing method of above-mentioned heavy wall stainless steel minor diameter rotary drum, step 5)In, welding rod heat preservation is existed before welding 150 DEG C ~ 200 DEG C, groove position is preheated to 300 DEG C ~ 350 DEG C, first welds inside weld, and postwelding is dug in outer groove to inside weld with carbon-point Position, with angle grinder polish plane machined surface it is clean after carry out outside weld seam welding again.
In the manufacturing method of above-mentioned heavy wall stainless steel minor diameter rotary drum, step 5)In, it is penetrated using UI flaw detections or/and X Line flaw detection mode is detected a flaw.
In the manufacturing method of above-mentioned heavy wall stainless steel minor diameter rotary drum, step 6)In, the heat treatment process is adopted It is solution annealing processing.After solution annealing processing, the γ of 40 ~ 50 α/40 of ideal microstructure ~ 50 can get.
In the manufacturing method of above-mentioned heavy wall stainless steel minor diameter rotary drum, step 7)In, hydraulic pressure tumbler rolls full circle, Until the straightness of rotating cylinder is in 1mm ~ 2mm, ovality is in 3mm ~ 6mm.
Compared with prior art, the beneficial effects of the invention are as follows:
The present invention realizes firm welding, close, raising rotary drum service life, and pre-bending and UO moldings reduce length of material, subtract Few waste of material, reduces manufacture difficulty;The present invention increases heat treatment after joint close welding, improves the organization mechanics of product Can, hydraulic pressure rolling improves formed product precision.
Description of the drawings
Fig. 1 is the pre-bending process chart of the present invention.
Fig. 2 is the structural schematic diagram after the steel plate pre-bending of the present invention.
Fig. 3 is the process chart when present invention proceeds by UO moldings.
Fig. 4 is the process chart when present invention terminates UO moldings.
Specific implementation mode
Following further describes the present invention with reference to the drawings.
A kind of manufacturing method of heavy wall stainless steel minor diameter rotary drum, includes the following steps:
1, it is rotary drum plank raw material to select 2205 dual phase sheet steels, and carries out chemical composition detection and ultrasound examination to it.
2, to steel plate both ends difference milling on groove and lower groove, upper bevel angle be 40 ° ~ 45 °, lower bevel angle be 35 ° ~ 40°。
3, pre-bending processing is carried out to steel plate both ends using press and mold, steel plate is processed into U-shaped.
4, UO is molded:U-shaped steel plate that pre-bending obtains is rolled by hydraulic pressure tumbler O-shaped.
5, joint close, misalignment control is in 1mm ~ 2mm when joint close.
6, the split at O shape planks both ends seam is welded, keeps the temperature E2209 trade mark welding rods 150 DEG C ~ 200 before welding DEG C, 300 DEG C ~ 350 DEG C are preheated to groove position, then welds inside weld, postwelding is dug in outer groove to inside weld position with carbon-point, Outside weld welding is totally carried out afterwards with angle grinder polishing plane machined surface.
7, it is detected a flaw by the way of UI flaw detections to weld seam, can also be detected a flaw by the way of x-ray inspection or UI detects a flaw The flaw detection mode being combined with x-ray inspection is detected a flaw.
8, heat treatment process is carried out to welding workpiece, workpiece is placed at a temperature of 1900 °/1922 °F (1040 °/1080 °C) Solution annealing is handled, and can get ideal microstructure 50 α/50 γ after solution annealing processing.
9, the workpiece after heat treatment is placed in hydraulic pressure tumbler and rolls full circle, until the straightness of rotating cylinder is in 1mm ~ 2mm Interior, ovality is in 3mm ~ 6mm.
10, shaping finished product is detected.
12, the product qualified to detection is machined to finished size.
13, maching dimension is examined;Through experiment, the yield strength of product produced by the invention up to 400-550MPa, Toughness value AK (V-groove mouth) is in 90J ~ 100J.
14, it arranges, be put in storage.
Described above is the preferred embodiment of the present invention, and non-limiting range, those skilled in the art are to the present invention The scheme various improvement and deformation done, belong within patent requirements protection domain of the present invention.

Claims (7)

1. a kind of heavy wall stainless steel minor diameter rotary drum forming method, includes the following steps:
1)It is rotary drum plank raw material to select 2205 dual phase sheet steels, and carries out quality testing to it;
2)To two end mill welding groove of steel plate;
3)Pre-bending processing is carried out to steel plate both ends using press and mold, by sheet fabrication at U-shaped;
4)The U-board material obtained after pre-bending is rolled into O shapes by hydraulic pressure tumbler;
5)The split seam at O shape planks both ends is welded;And it detects a flaw to weld seam;
6)Heat treatment process is carried out to the workpiece after welding;
7)Workpiece after heat treatment is placed in hydraulic pressure tumbler and rolls full circle;
8)Workpiece after full circle is machined to finished product.
2. heavy wall stainless steel minor diameter rotary drum forming method according to claim 1, step 2)In, steel plate both ends are opened If upper groove and lower groove, upper bevel angle is 40 ° ~ 45 °, and lower bevel angle is 35 ° ~ 40 °.
3. heavy wall stainless steel minor diameter rotary drum forming method according to claim 1, step 4)In, it is closed after roll forming Seam, misalignment control is in 1mm ~ 2mm when joint close.
4. heavy wall stainless steel minor diameter rotary drum forming method according to claim 3, step 5)In, by welding rod before welding At 150 DEG C ~ 200 DEG C, groove position is preheated to 300 DEG C ~ 350 DEG C for heat preservation, first welds inside weld, postwelding with carbon-point outer groove dig to Inside weld position, with angle grinder polish plane machined surface it is clean after carry out outside weld seam welding again.
5. heavy wall stainless steel minor diameter rotary drum forming method according to claim 1 or 3, step 5)In, it is visited using UI Wound or/and x-ray inspection mode are detected a flaw.
6. heavy wall stainless steel minor diameter rotary drum forming method according to claim 1, step 6)In, the heat treatment Processing is handled using solution annealing.
7. heavy wall stainless steel minor diameter rotary drum forming method according to claim 1, step 7)In, the rolling of hydraulic pressure tumbler Repoussage is justified, until the straightness of rotating cylinder is in 1mm ~ 2mm, ovality is in 3mm ~ 6mm.
CN201810145169.4A 2018-02-12 2018-02-12 A kind of heavy wall stainless steel minor diameter rotary drum forming method Pending CN108380692A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810145169.4A CN108380692A (en) 2018-02-12 2018-02-12 A kind of heavy wall stainless steel minor diameter rotary drum forming method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810145169.4A CN108380692A (en) 2018-02-12 2018-02-12 A kind of heavy wall stainless steel minor diameter rotary drum forming method

Publications (1)

Publication Number Publication Date
CN108380692A true CN108380692A (en) 2018-08-10

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Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5172476A (en) * 1991-08-14 1992-12-22 General Motors Corporation Method of manufacturing heat exchanger tubing
EP1835040A1 (en) * 2006-03-17 2007-09-19 Siemens Aktiengesellschaft Welding material, use of the welding material and method of welding a structural component
CN101328567A (en) * 2008-07-28 2008-12-24 中国航空工业第一集团公司北京航空制造工程研究所 Double electron beam partial heat treatment method after refractory metal material is welded
EP2182084A1 (en) * 2008-11-04 2010-05-05 Siemens Aktiengesellschaft Welding filler material, use of the welding filler material and component
CN102430894A (en) * 2011-09-28 2012-05-02 攀钢集团冶金工程技术有限公司 Process for continuously rolling pipeline without causing pressure head
KR20120073954A (en) * 2010-12-27 2012-07-05 재단법인 포항산업과학연구원 System of manufacturing micro tube
CN103556054A (en) * 2013-10-14 2014-02-05 宝鸡石油钢管有限责任公司 High-strength medium-caliber thick-wall subsea pipeline and its manufacturing method
CN103862146A (en) * 2014-03-25 2014-06-18 东方电气集团东方汽轮机有限公司 Method for manufacturing inner barrel of combustor of gas turbine and fixture
CN104339124A (en) * 2013-08-05 2015-02-11 上海通华不锈钢压力容器工程有限公司 Multi-curvature forming method for stainless steel cylinder
CN104646449A (en) * 2013-11-16 2015-05-27 无锡大金高精度冷拔钢管有限公司 Manufacturing method for cold drawn welded pipe used for hydraulic oil cylinders
CN104923928A (en) * 2015-06-09 2015-09-23 招商局重工(江苏)有限公司 Q690D steel tube longitudinal seam welding method for crane boom
CN104959785A (en) * 2015-06-16 2015-10-07 湖南胜利湘钢钢管有限公司 Steel tube manufacturing method
CN105478524A (en) * 2016-01-06 2016-04-13 河北华通线缆集团股份有限公司 Method for manufacturing duplex stainless steel coiled tubing
CN107142427A (en) * 2017-04-25 2017-09-08 中国石油天然气集团公司 A kind of spiral forming X80 steel-grade marine riser supervisor and its manufacture method
CN107263031A (en) * 2017-06-26 2017-10-20 山东美陵化工设备股份有限公司 Cylinder is without pre-bending edge rolling moulding process
CN107639359A (en) * 2017-10-30 2018-01-30 二重集团(镇江)重型装备厂有限责任公司 A kind of modified welding procedure for thick-walled vessel cylinder longitudinal joint groove

Patent Citations (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5172476A (en) * 1991-08-14 1992-12-22 General Motors Corporation Method of manufacturing heat exchanger tubing
EP1835040A1 (en) * 2006-03-17 2007-09-19 Siemens Aktiengesellschaft Welding material, use of the welding material and method of welding a structural component
CN101328567A (en) * 2008-07-28 2008-12-24 中国航空工业第一集团公司北京航空制造工程研究所 Double electron beam partial heat treatment method after refractory metal material is welded
EP2182084A1 (en) * 2008-11-04 2010-05-05 Siemens Aktiengesellschaft Welding filler material, use of the welding filler material and component
KR20120073954A (en) * 2010-12-27 2012-07-05 재단법인 포항산업과학연구원 System of manufacturing micro tube
CN102430894A (en) * 2011-09-28 2012-05-02 攀钢集团冶金工程技术有限公司 Process for continuously rolling pipeline without causing pressure head
CN104339124A (en) * 2013-08-05 2015-02-11 上海通华不锈钢压力容器工程有限公司 Multi-curvature forming method for stainless steel cylinder
CN103556054A (en) * 2013-10-14 2014-02-05 宝鸡石油钢管有限责任公司 High-strength medium-caliber thick-wall subsea pipeline and its manufacturing method
CN104646449A (en) * 2013-11-16 2015-05-27 无锡大金高精度冷拔钢管有限公司 Manufacturing method for cold drawn welded pipe used for hydraulic oil cylinders
CN103862146A (en) * 2014-03-25 2014-06-18 东方电气集团东方汽轮机有限公司 Method for manufacturing inner barrel of combustor of gas turbine and fixture
CN104923928A (en) * 2015-06-09 2015-09-23 招商局重工(江苏)有限公司 Q690D steel tube longitudinal seam welding method for crane boom
CN104959785A (en) * 2015-06-16 2015-10-07 湖南胜利湘钢钢管有限公司 Steel tube manufacturing method
CN105478524A (en) * 2016-01-06 2016-04-13 河北华通线缆集团股份有限公司 Method for manufacturing duplex stainless steel coiled tubing
CN107142427A (en) * 2017-04-25 2017-09-08 中国石油天然气集团公司 A kind of spiral forming X80 steel-grade marine riser supervisor and its manufacture method
CN107263031A (en) * 2017-06-26 2017-10-20 山东美陵化工设备股份有限公司 Cylinder is without pre-bending edge rolling moulding process
CN107639359A (en) * 2017-10-30 2018-01-30 二重集团(镇江)重型装备厂有限责任公司 A kind of modified welding procedure for thick-walled vessel cylinder longitudinal joint groove

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