CN106694600B - A kind of production method of the special thick composite plate of stainless steel - Google Patents
A kind of production method of the special thick composite plate of stainless steel Download PDFInfo
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- CN106694600B CN106694600B CN201510791439.5A CN201510791439A CN106694600B CN 106694600 B CN106694600 B CN 106694600B CN 201510791439 A CN201510791439 A CN 201510791439A CN 106694600 B CN106694600 B CN 106694600B
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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
- B21C37/02—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of sheets
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Abstract
The present invention provides a kind of production method of the special thick composite plate of stainless steel, and Q235B strands are rolled into nested plates of the thickness more than two pieces of 3~10mm of stainless steel plate thickness；It polishes and dries up after stainless steel surface derusting, separation layer is uniformly dispensed on composite surface；Each mirror polish of base base is polished again；It is put on base base, then two pieces of stainless steel plates are overlayed in nesting after nested plates are cut into nesting corresponding with stainless steel plate size, another piece of base base is covered in above；Composite billet enters after vacuum chamber vacuumized, and patrols side, spot welding, finally again by base base with it is nested continuous integrally welded；Nested parts steel plate is cut away in post weld heat treatment and rolling after rolling, dispensed two pieces of stainless steel plates of separation layer and will be separated naturally.Present invention process is simple, and assembly is fast, can not only avoid arc blow phenomenon during welding, but also the thick stainless steel clad plate of the spy that can once produce two pieces of two-sided unlike materials, improves production capacity, realizes large-scale industrial production.
Description
Technical field
The invention belongs to steel rolling process field, more particularly to a kind of producer of the stainless steel clad plate of thickness G T.GT.GT 200mm
Method.
Background technology
Stainless steel clad plate is stainless steel and other steel grade (such as straight carbon steel, the deck of boat, container panel and corrosion-resistant plate, monometallics
With alloy etc.) it is combined into one by certain way and the composite plate of two-sided unlike material produced, it is that one kind is provided simultaneously with not
Become rusty steel and the plank with the respective advantage of its composite material.Stainless steel clad plate has been widely used for oil, chemical industry, salt industry, water
The industries such as profit, electric power as a kind of resource-conserving product, can be greatly lowered project cost, realize low cost and high property
The perfect adaptation of energy has good social benefit.The production method of composite plate mainly has explosive welding composite algorithm, double gold at present
Rolling heat treating process, molten metal are to the substrate jet deposition method of forming and roll-bonding method etc. after belonging to casting.Wherein, Rolling compund
The environment such as climate, place, transport do not influence, and not can cause environmental pollution, therefore be widely used method.Roll-bonding method
Basic principle be certain rolling temperature and milling train crunch effect under realize dissimilar material metallurgical binding, knot
The clean level in conjunction face, weld strength, the integrality of weld seam, heating temperature, soaking time, the techniques such as drafts of the first passage
Parameter has vital influence to the success rate of method hot rolling.
Method hot rolling is most important plank complex technique, and more than 85% is accounted in about 80,000 tons of composite plate yield every year.
For composite plate specification generally in 6~200mm, the wide 1000-4400mm of plate, the long 14000-20000mm of plate, substrate can select hot rolled plate
(QT：Such as 16Mn) and controlled rolling plate (TMCP：Such as IA85).The production procedure of method hot rolling plate is divided into A methods and B methods：
A methods：The polished processing of Substrate sheet+faying face of the polished processing of mating surface needs compound Thin Stainless Steel
Plate+uniformly the dispense polished base of stainless steel plate+faying face of zirconium oxide or chromium oxide powder separation layer+polished processing of faying face
Laminate is superimposed, and using steel band welded seal around two layers of basal plate, is vacuumized (deoxygenation is denitrogenated) and then is rolled, finally removed
Steel band, shaping are sealed, can once obtain two composite plates.Suitable for the hot rolling of general thickness basal plate and thin corrosion resistant alloy plate
It is compound.
B methods：The Substrate sheet of faying face surface polishing treatment+faying face polishing treatment needs compound corrosion resistant alloy plate
+ sacrifice the steel plate for uniformly spreading zirconium oxide or chromium oxide powder separation layer+surface polishing (is only used as sealing, is given up after being once finished
Abandon), it using steel band welded seal around two-layered steel plates, vacuumizes and is rolled, removal sealing steel band, shaping can only once obtain
To a composite plate；It is compound with corrosion resistant alloy thin plate suitable for special heavy plate (thickness is more than 200mm) substrate.Method hot rolling plate is special
Point：Composite bed is combined uniformly with substrate, and peel strength is typically larger than 140MPa；But product such as pipe fitting for particular/special requirement,
Vessel head etc. requires the method hot rolling plate that peel strength is more than 280MPa, increases engagement the methods of the nickel plating of generally use composition surface
Intensity.
Invention content
The present invention is intended to provide a kind of can not only fix stainless steel plate orientation, but also can eliminate arc blow phenomenon, realize that one is secondary
Two pieces of stainless steel clad plates are produced, are suitable for the production method of the special thick composite plate of stainless steel of industrialized production.
For this purpose, this invention takes following technical solutions：
The production method of the special thick composite plate of a kind of stainless steel, which is characterized in that the stainless steel clad plate of thickness G T.GT.GT 200mm
Specifically production method is：
(1) that logical magnetic preferable Q235B strands are rolled into thickness is compound with 3~10mm's of stainless steel plate thickness more than two pieces
Nested plates；
(2) it by after the compound rusty scale on all faces of stainless steel plate and oxide layer removal, finely polishes and dries up, Ran Hou
Zirconium oxide or chromium oxide powder separation layer are uniformly dispensed on two plots of compound composite surfaces with stainless steel plate；
(3) prepare two pieces of Q235B base bases, and the composite surface of base base and side are polished, polishing；
(4) nested plates are used into stainless steel plate size according to compound, using middle part as symmetric points, is cut into and uses stainless steel with compound
The corresponding nesting of board size, length and width dimensions precision are controlled within+2mm；
(5) nesting is positioned on base base, external dimensions alignment after, then by two pieces it is compound with stainless steel plate spreading have oxidation
The composite surface of zirconium or chromium oxide powder separation layer is opposite to be overlayed in nesting, is finally again covered in another piece of base base compound with stainless
Above steel plate, external dimensions is aligned, and the gap of commissure is not more than 2mm after assembly；
(6) composite billet after assembly is entered vacuum chamber to vacuumize, after vacuumizing, starts to patrol edge point weldering, patrol side amendment
Step-length is not more than 100mm, is corresponded in the middle part of electron beam in welded joints, and base base is welded in one with nested point with linear spot welding small routine
It rises, for two solder joint distances no more than 1 meter, the depth of weld is not less than 20mm；
(7) patrol again behind side and carry out sequential welding and connect, fusion penetration is not less than 40mm, by base base with it is nested secured integrally welded；
(8) it is heat-treated and is rolled after welding, after rolling, cut away the steel plate of nested parts, remaining part composite plate will
It is separated naturally between zirconium oxide or two pieces of stainless steel plates of chromium oxide powder separation layer from dispensing, it is double so as to can once obtain two
The special thick composite plate of the stainless steel of face unlike material.
Beneficial effects of the present invention are：
Present invention process is simple, and assembly is fast, and arc blow phenomenon when can not only avoid welding between stainless steel and carbon steel makes
Weld penetration ensured, can be fully effective compound between stainless steel and carbon steel；And it can once produce two pieces of two-sided differences
The thick stainless steel clad plate of spy of material, production efficiency height is, it can be achieved that large-scale industrial production, solves stainless steel clad plate
The low technical barrier of production capacity.Particularly with the special thick composite plate production of vacuum also in the country of blank, have larger
Reference.
Specific embodiment
Embodiment 1：
1st, according to it is compound with stainless steel plate thickness be 30mm, Q235B strands are rolled into the nested plates that thickness is 65mm.
2nd, it by after the compound rusty scale on all faces of stainless steel plate and oxide layer removal, finely polishes and dries up, Ran Hou
Uniformly chromium oxide powder is dispensed on two plots of compound composite surfaces with stainless steel plate.
3rd, prepare the Q235B base bases that two pieces of thickness are 250mm, and the composite surface of base base and side are polished, polishing.
4th, nested plates are used into 2500 × 5500mm of stainless steel plate width and length dimension according to compound, is symmetrical using middle part
Point is cut into the nesting of (2500+1.5) × (5500+1.5) mm.
5th, nesting is positioned on base base, external dimensions alignment after, then by two pieces it is compound with stainless steel plate spreading have oxidation
The composite surface of zirconium or chromium oxide powder separation layer is opposite to be overlayed in nesting, is finally again covered in another piece of base base compound with stainless
Above steel plate, external dimensions is aligned, and the gap of commissure is not more than 2mm after guarantee assembly.
6th, the composite billet after assembly is entered vacuum chamber to vacuumize, after vacuumizing, starts to patrol edge point weldering, patrol side and correct step
Long 90mm, electron beam middle part is corresponding in welded joints, with linear spot welding small routine by base base with nested spot-welded together, two solder joints
Distance is 0.8 meter, depth of weld 20mm.
7th, patrol again behind side and carry out sequential welding and connect, fusion penetration 50mm, by base base with it is nested secured integrally welded.
8th, it is heat-treated and is rolled after welding, after rolling, cut away the steel plate of nested parts, remaining part composite plate will be from
It dispenses and is separated naturally between zirconium oxide or two pieces of stainless steel plates of chromium oxide powder separation layer, it is two-sided so as to can once obtain two
The special thick composite plate of the stainless steel of unlike material.
Embodiment 2：
1st, compound with stainless steel plate thickness is 35mm, and Q235B strands are rolled into the nested plates that thickness is 75m.
2nd, it by after the compound rusty scale on all faces of stainless steel plate and oxide layer removal, finely polishes and dries up, Ran Hou
Uniformly zirconia powder is dispensed on two plots of compound composite surfaces with stainless steel plate.
3rd, prepare the Q235B base bases that two pieces of thickness are 300mm, and the composite surface of base base and side are polished, polishing；
4th, nested plates are used into 2800 × 6000mm of stainless steel plate width and length dimension according to compound, is symmetrical using middle part
Point is cut into the nesting of (2800+1.5) × (6000+1.5) mm.
5th, nesting is positioned on base base, external dimensions alignment after, then by two pieces it is compound with stainless steel plate spreading have oxidation
The composite surface of zirconium or chromium oxide powder separation layer is opposite to be overlayed in nesting, is finally again covered in another piece of base base compound with stainless
Above steel plate, external dimensions is aligned, and the gap of commissure is not more than 2mm after guarantee assembly.
6th, the composite billet after assembly is entered vacuum chamber to vacuumize, after vacuumizing, starts to patrol edge point weldering, patrol side and correct step
Long 95mm, electron beam middle part is corresponding in welded joints, with linear spot welding small routine by base base with nested spot-welded together, two solder joints
Distance is 0.9 meter, depth of weld 25mm.
7th, patrol again behind side and carry out sequential welding and connect, fusion penetration 55mm, by base base with it is nested secured integrally welded.
8th, it is heat-treated and is rolled after welding, after rolling, cut away the steel plate of nested parts, remaining part composite plate will be from
It dispenses and is separated naturally between zirconium oxide or two pieces of stainless steel plates of chromium oxide powder separation layer, it is two-sided so as to can once obtain two
The special thick composite plate of the stainless steel of unlike material.
Claims (1)
- A kind of 1. production method of the special thick composite plate of stainless steel, which is characterized in that the tool of the stainless steel clad plate of thickness G T.GT.GT 200mm Body production method is：(1) logical magnetic preferable Q235B strands are rolled into thickness more than two pieces of compound nestings with 3~10mm of stainless steel plate thickness Plate；(2) it by after the compound rusty scale on all faces of stainless steel plate and oxide layer removal, finely polishes and dries up, then at two pieces Zirconium oxide or chromium oxide powder separation layer are uniformly dispensed on the compound composite surface with stainless steel plate；(3) prepare two pieces of Q235B base bases, and the composite surface of base base and side are polished, polishing；(4) nested plates are used into stainless steel plate size according to compound, using middle part as symmetric points, is cut into and uses stainless steel ruler with compound Very little corresponding nesting, length and width dimensions precision are controlled within+2mm；(5) nesting is positioned on base base, external dimensions alignment after, then by two pieces it is compound with stainless steel plate spreading have zirconium oxide or The composite surface of chromium oxide powder separation layer is opposite to be overlayed in nesting, is finally again covered in another piece of base base and compound is used stainless steel plate Above, external dimensions is aligned, and the gap of commissure is not more than 2mm after assembly；(6) composite billet after assembly is entered vacuum chamber to vacuumize, after vacuumizing, starts to patrol edge point weldering, patrol side and correct step-length No more than 100mm, corresponded in the middle part of electron beam in welded joints, with linear spot welding small routine by base base with nested spot-welded together, two For a solder joint distance no more than 1 meter, the depth of weld is not less than 20mm；(7) patrol again behind side and carry out sequential welding and connect, fusion penetration is not less than 40mm, by base base with it is nested secured integrally welded；(8) it is heat-treated and is rolled after welding, after rolling, cut away the steel plate of nested parts, remaining part composite plate will be from spreading Between cloth zirconium oxide or two pieces of stainless steel plates of chromium oxide powder separation layer naturally separate, so as to can once obtain two it is two-sided not The special thick composite plate of the stainless steel of same material.
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| CN106694600B true CN106694600B (en) | 2018-06-26 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110539134B (en) * | 2019-09-06 | 2021-02-23 | 鞍钢股份有限公司 | Production process of high-magnetism steel composite blank |
| CN110681972B (en) * | 2019-09-30 | 2021-08-20 | 鞍钢股份有限公司 | Vacuum electron beam welding method for extra-thick plate blank |
| CN110681973B (en) * | 2019-09-30 | 2021-08-20 | 鞍钢股份有限公司 | Vacuum electron beam seal welding method for composite blank for rolling composite plate |
| CN112139763B (en) * | 2020-09-07 | 2022-08-26 | 山东钢铁集团日照有限公司 | Manufacturing method of high-carbon equivalent high-alloy super-thick steel plate |
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| CN1355098A (en) * | 2000-11-30 | 2002-06-26 | 郑珠镛 | Corrosion-resistance compound steel plate and its manufacture method |
| JP2004269924A (en) * | 2003-03-06 | 2004-09-30 | Nippon Steel Corp | High efficient producing method of steel sheet excellent in strength and toughness |
| CN101214496A (en) * | 2007-12-28 | 2008-07-09 | 北京科技大学 | Method of manufacturing metal composite plate for cutting tool |
| CN101487104A (en) * | 2009-03-03 | 2009-07-22 | 北京科技大学 | Carbon steel / stainless steel composite material and preparation |
| CN104624702A (en) * | 2015-01-07 | 2015-05-20 | 李向民 | Preparation method of double-sided stainless steel composite board |
| JP2015151600A (en) * | 2014-02-18 | 2015-08-24 | 新日鐵住金株式会社 | Manufacturing method of hot rolled steel sheet |
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2015
- 2015-11-17 CN CN201510791439.5A patent/CN106694600B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1355098A (en) * | 2000-11-30 | 2002-06-26 | 郑珠镛 | Corrosion-resistance compound steel plate and its manufacture method |
| JP2004269924A (en) * | 2003-03-06 | 2004-09-30 | Nippon Steel Corp | High efficient producing method of steel sheet excellent in strength and toughness |
| CN101214496A (en) * | 2007-12-28 | 2008-07-09 | 北京科技大学 | Method of manufacturing metal composite plate for cutting tool |
| CN101487104A (en) * | 2009-03-03 | 2009-07-22 | 北京科技大学 | Carbon steel / stainless steel composite material and preparation |
| JP2015151600A (en) * | 2014-02-18 | 2015-08-24 | 新日鐵住金株式会社 | Manufacturing method of hot rolled steel sheet |
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