CN105414239B - Ripple faying face metal composite pipe technique in one kind rolling - Google Patents
Ripple faying face metal composite pipe technique in one kind rolling Download PDFInfo
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- CN105414239B CN105414239B CN201610050510.9A CN201610050510A CN105414239B CN 105414239 B CN105414239 B CN 105414239B CN 201610050510 A CN201610050510 A CN 201610050510A CN 105414239 B CN105414239 B CN 105414239B
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- pipe
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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
- B21C37/08—Making tubes with welded or soldered seams
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- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
Ripple faying face metal composite pipe technique in one kind rolling, its step are：Choose metal base tube and metal covers pipe, the resistance of deformation for covering pipe is less than the resistance of deformation of base tube, and base is combined outside, including base tube by pipe is covered；Composite pipe blank is passed through into the compound roughing mill equipped with helical corrugation plug, rolling out has the compound hollow billet of helical corrugation shape on inner surface and composite surface, helical corrugation cross sectional shape is circular arc, ellipse, sinusoidal waveform, triangle, trapezoidal or rectangle, and wave height is to cover tube thickness（0.1~10）Times, waviness width is wave height（3~20）Times；By compound hollow billet by the compound finishing mill equipped with smooth circular hole, inner surface ripple is offseted, rolls circle, required pipe thickness is rolled down to, obtains multiple tube.The present invention solves the difference that dissimilar metal resistance of deformation difference causes metal plastic deformation, adds the bond strength and adhesion of metal level, improve recombination rate using the ripple text faying face that pipe and base tube are covered after roughing.
Description
Technical field
The invention belongs to the preparing technical field of metal composite pipe, and in particular to ripple faying face metal is answered in one kind rolling
Close plumber's skill.
Background technology
Composite bimetal pipe (hereinafter referred to as multiple tube) is also known as bimetallic tube or cage walls, is by 2 kinds of different metal tubes
Form.Combined closely between pipe by various modifications and interconnection technique, when being acted on by external force, inner and outer pipes while deformation and interface are not
Separation.It is that base material meets design stress to be typically designed criterion, cover material can it is anticorrosive or abrasion etc..Compared with single metal tube, it is multiple
Close pipe to make full use of base tube and cover the optimum performance of pipe, not only with high intensity, but also there is excellent corrosion-resistant, wear resistance
Can, a large amount of precious metals are saved, reduce production cost, thus the application field of composite bimetal pipe is very extensive.
Explosion composite method produces the pressure needed for connection metal by explosive charge, two overlap joint surfaces is realized Solid-State Welding
Connect.Specific method be first base tube with cover pipe and be assembled into composite pipe blank, mould inner tube by shock wave caused by explosive charge
Property deformation, be close to outer tube.
But the compound pipe size of this method production is smaller tubular poor, and lumber recovery is low；And rushing due to blast high-energy
Hit, metallization structure is affected, and environmental pollution is heavier.
Metal forming method refers to that dissimilar metal is made contact surface in plastic history by the effect of deformation force
A large amount of binding sites are formed close to atom thick distance, and then diffuse to form firm metallurgical binding.Its blank-making technology and Interface composites
Mechanism is to restrict composite metal pipe quality, the principal element of yield.Most study is Rolling compund in press-working method, there is heat
Roll, cold rolling, non-isothermal rolling, asymmetrical rolling etc..And Rolling compund energy is relatively low, different metal materials mechanical property difference is big,
Combination interface is more increasingly complex than Explosion composite.Composite algorithm is rolled, inner tube is easy to crack and easy processing is hardened；Spinning composite algorithm, technique
Simply, cost is low, efficiency high, but bond strength is low, and processing Large Diameter Pipeline is more difficult.So make dissimilar metal interface cohesion
Firm, Mass accuracy is high, and variety range is wide, and combined efficiency height is urgent problem to be solved.
The content of the invention
Compound interface binding ability bad technical problem during the invention aims to solve multiple tube production, there is provided
Ripple faying face metal composite pipe technique in one kind rolling.
The present invention is to be achieved through the following technical solutions.
1. ripple faying face metal composite pipe technique in one kind rolling, comprises the following steps：
1）Slab selection, chooses metal base tube and metal covers pipe, under material condition of molding, the change of the base tube metal level
Shape drag is less than the resistance of deformation for covering pipe metal level, and cleaning base tube carries out compound surface with pipe is covered, until seeing metallic matrix；
2）Base, will cover pipe and base tube closed assembly in order, and base tube outside, including covering pipe, combines base, obtains multiple tube
Base；
3）Roughing, by composite pipe blank by the roller of Y types three or the compound roughing mill of two rollers, the compound roughing mill is circular hole
Y-type rolling mill or circular hole duo mill, make roll circular hole be contacted with base tube；Make to cover pipe internal surface and appearance carries helicon
The core rod touch of line, roll out the compound hollow billet on inner surface and composite surface with helical corrugation shape；The interior table of compound hollow billet
Surface helix ripple cross sectional shape is circular arc, ellipse, sinusoidal waveform, triangle, trapezoidal or rectangle, and helical corrugation is highly to cover
Tube thickness（0.1~10）Times, waviness width is wave height（3~20）Times；
4）Finish rolling, by compound finishing mill, finishing mill it is three-high mill or duo mill by compound hollow billet, roll carries
Smooth circular hole；A kind of smooth surface plug is changed, offsets compound hollow billet inner surface ripple, multiple tube rolls circle, by compound hair
Guan Ding, tube reducing, required pipe thickness is obtained, finally gives multiple tube；
5）Finishing, the multiple tube that finish rolling is shut out is subjected to crop and enclosed, is heat-treated, aligns, segmentation.
2nd, wherein, ripple faying face metal composite pipe technique in a kind of rolling, in step 2）In, the tubulation base process
For：The base tube of closed assembly is sent to forcing press compression with pipe is covered, submerged-arc welding encapsulation is circumferentially carried out at the multiple tube both ends of closed assembly
Welding, vacuumized in the multiple tube blank end drilling being welded, then close the hole, obtain composite pipe blank.
3rd, wherein, ripple faying face metal composite pipe technique in a kind of rolling, in step 3）In, for hot rolling, in roughing
Before, composite pipe blank after the assay was approved is sent to heating furnace, is heated to certain temperature, then carries out roughing again.
4th, wherein, ripple faying face metal composite pipe technique in a kind of rolling, in step 3）In, or for cold rolling,
Before roughing, qualified composite plate pipe will be examined to be sent to pickler pickling, then carry out roughing again.
Advantages of the present invention and good effect：
The present invention increases base tube using base tube helical corrugation and the adhesion covered between pipe helical corrugation and covered between pipe
Adhesion；Pipe and overall corrugated base tube helical corrugation faying face are covered using overall ripple after roughing, solves dissimilar metal deformation
Drag difference causes the difference of metal plastic deformation, that is, is plastically deformed the problem of inconsistent；Utilize base tube and the helicon for covering pipe
Line composite surface, increase base tube and cover the contact area of pipe, add the bond strength of metal level, avoid base in the operation of rolling
The cracking phenomena of pipe is managed and covered, improves recombination rate；Ripple faying face metal composite pipe technique in a kind of rolling, technique letter
Single, energy consumption is low, and composite quality, yield are high.
Brief description of the drawings
Fig. 1 is composite pipe blank schematic diagram；
Fig. 2 is multiple tube roughing schematic diagram；
Fig. 3 is multiple tube finish rolling schematic diagram；
In figure：1- base tubes 2- covers pipe；3- helical corrugation mandrels；4-Y type roughing mill rolls；5-Y type milling train finishing rolls.
Embodiment
Below in conjunction with the accompanying drawings and embodiment, the present invention will be described in further detail.It is it should be appreciated that described herein
Specific embodiment is used only for explaining the present invention, is not intended to limit the present invention.
Embodiment：Prepare stainless steel and carbon steel method hot rolling pipe
Base：304 stainless steel tubes and Q345R carbon steel pipes are chosen according to the ratio assemblies of 1 ︰ 3, carbon steel pipe size be thick 15mm ×
Diameter 250mm × long 2000mm, as covering pipe 2；Stainless steel tube size is thick 5mm × diameter 248mm × long 2000mm, as base
Pipe 1；Stainless steel inside pipe wall and carbon steel pipe outer wall are cleared up, until seeing metallic substrates；Closed assembly covers pipe 2 and base tube 1, is sent to forcing press
Compress, first put postwelding submerged-arc welding welded encapsulation with the thick carbon steels of 10mm around the composite pipe blank both ends of closed assembly, be welded
Multiple tube blank end drilling vacuumize, then close the hole, obtain composite pipe blank, such as Fig. 1, the thickness of composite pipe blank is
20mm；
Heating：Composite pipe blank after the assay was approved is sent to heating furnace, is heated to 1250 DEG C；
Roughing：The composite pipe blank heated is sent to compound roughing mill rolling, the compound roughing mill is that three rolls are
Smooth circular hole face y-type rolling mill, the shaping roll 4 of smooth surface is set to be contacted with stainless steel base tube outer surface, the helical corrugation of plug 3
Outer surface is covered pipe internal surface with carbon steel and contacted, and along rolling direction, stainless steel and carbon steel composite pipe blank is rolled into carbon steel inside pipe wall is
The compound hollow billet of overall circular arc helical corrugation, the compound hollow billet are carbon steel pipe and stainless steel tube composite surface with circular arc spiral
The compound hollow billet of roughing that ripple cooperates；
Finish rolling：Such as Fig. 3, the inner surface after roughing is sent to three roller finish rolling Y types for the compound hollow billet of circular arc helical corrugation
Mill milling, the finishing mill working roll are smooth surface roller, the compound hollow billet helical corrugation of roughing is arranged along rolling direction,
Rolling is until compound hollow billet inside spin ripple offsets, compound hollow billet rolls circle on finishing mill, by compound hollow billet is fixed, tube reducing, is rolled down to
Required pipe thickness, obtains Complex steel and stainless steel pipe；
Finishing, the multiple tube that finish rolling is shut out carry out crop end, are heat-treated, and align, and segmentation, finished product are made.
In the present embodiment, the helical corrugation cross sectional shape for covering pipe of roughing formation can be circular arc, ellipse, sine wave
Type, triangle, trapezoidal or rectangle, helical corrugation are highly to cover tube thickness（0.1~10）Times, waviness width is wave height
（3~20）Times.
Examples detailed above increases base tube using base tube ripple and the adhesion covered between pipe helical corrugation and covered between pipe
Adhesion；Using one-piece auger corrugated base tube after roughing and pipe helical corrugation faying face is covered, solves dissimilar metal resistance of deformation
Difference causes the difference of metal plastic deformation；Its composite effect is good, and the bond strength of metal bed boundary is rolled compared with using plain tube
Making compound bond strength has the raising of essence.
Claims (3)
1. ripple faying face metal composite pipe technique in one kind rolling, comprises the following steps：
1）Slab selection, chooses metal base tube and metal covers pipe, and under material condition of molding, the deformation of the base tube metal level resists
Power is less than the resistance of deformation for covering pipe metal level, and cleaning base tube carries out compound surface with pipe is covered, until seeing metallic matrix；
2）Base, will cover pipe and base tube closed assembly in order, and base tube outside, including covering pipe, combines base, the base process is：
The base tube of closed assembly is sent to forcing press compression with pipe is covered, submerged-arc welding encapsulation weldering is circumferentially carried out at the multiple tube both ends of closed assembly
Connect, vacuumized in the multiple tube blank end drilling being welded, then close the hole, obtain composite pipe blank；
3）Roughing, by composite pipe blank by the roller of Y types three or the compound roughing mill of two rollers, the compound roughing mill is circular hole Y types
Milling train or circular hole duo mill, make roll circular hole be contacted with base tube；Make to cover pipe internal surface and appearance carries helical corrugation
Mandrel contact, roll out on inner surface and composite surface have helical corrugation shape compound hollow billet；The inner surface of compound hollow billet
Helical corrugation cross sectional shape is circular arc, ellipse, sinusoidal waveform, triangle, trapezoidal or rectangle, and wave height is to cover tube thickness
0.1~10 times, waviness width is 3~20 times of wave height；
4）Finish rolling, by compound hollow billet by compound finishing mill, finishing mill is three-high mill or duo mill, and roll is with smooth
Circular hole；A kind of smooth surface plug to be changed, offsets compound hollow billet inner surface ripple, multiple tube rolls circle, compound hollow billet is determined,
Tube reducing, required pipe thickness is obtained, finally gives multiple tube；
5）Finishing, the multiple tube that finish rolling is shut out is subjected to crop and enclosed, is heat-treated, aligns, segmentation.
2. ripple faying face metal composite pipe technique in a kind of rolling according to claim 1, it is characterised in that in step
3）In, for hot rolling, before roughing, composite pipe blank after the assay was approved is sent to heating furnace, is heated to certain temperature, Ran Houzai
Carry out roughing.
3. ripple faying face metal composite pipe technique in a kind of rolling according to claim 1, it is characterised in that in step
3）In, or for cold rolling, before roughing, qualified composite plate pipe will be examined to be sent to pickler pickling, then carried out again thick
Roll.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610050510.9A CN105414239B (en) | 2016-01-26 | 2016-01-26 | Ripple faying face metal composite pipe technique in one kind rolling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610050510.9A CN105414239B (en) | 2016-01-26 | 2016-01-26 | Ripple faying face metal composite pipe technique in one kind rolling |
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| Publication Number | Publication Date |
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| CN105414239A CN105414239A (en) | 2016-03-23 |
| CN105414239B true CN105414239B (en) | 2018-01-16 |
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| CN201610050510.9A Expired - Fee Related CN105414239B (en) | 2016-01-26 | 2016-01-26 | Ripple faying face metal composite pipe technique in one kind rolling |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112439789B (en) * | 2020-10-30 | 2022-08-12 | 太原理工大学 | Forming method of easy-to-demould core rod and metal composite pipe |
| CN112496076B (en) * | 2020-10-30 | 2022-08-12 | 太原理工大学 | Rolling method of inner corrugated metal composite pipe |
| CN112496077B (en) * | 2020-10-30 | 2022-07-22 | 太原理工大学 | Metal composite pipe continuous rolling forming method for transverse and longitudinal crossed inner corrugated joint surface |
| CN112718867B (en) * | 2020-12-09 | 2022-08-26 | 太原理工大学 | Three-roller skew rolling forming method for metal composite pipe with corrugated joint surface |
| CN115592056B (en) * | 2022-12-15 | 2023-04-07 | 太原理工大学 | Large-thickness-ratio interlayer shell ring rolling compounding method based on local high-temperature strong pressure |
| CN115608900B (en) * | 2022-12-16 | 2023-02-24 | 太原理工大学 | Metal clad material wave-flat radial forging compound equipment and method thereof |
| CN117324416B (en) * | 2023-10-19 | 2024-06-11 | 深圳市鑫冠亚科技有限公司 | Preparation method of dissimilar metal composite plate strip |
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| JPS5592280A (en) * | 1978-12-28 | 1980-07-12 | Toyo Pipe Kogyo Kk | Production of metal composite pipe |
| CN102363364A (en) * | 2011-06-10 | 2012-02-29 | 上海天勃能源设备有限公司 | Manufacture method for inner composite pipe |
| CN103736728B (en) * | 2014-01-22 | 2015-07-15 | 太原科技大学 | Method for rolling metal clad plate strip |
| CN105149350B (en) * | 2015-09-01 | 2017-03-08 | 太原科技大学 | Rolling preparation big ripple faying face metal composite board production technology |
| CN105127198A (en) * | 2015-09-01 | 2015-12-09 | 太原科技大学 | Metal composite plate rolling technique based on corrugated surface combining type blank forming |
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Granted publication date: 20180116 Termination date: 20220126 |