CN104550233A - Production process for hot-rolled composite blank - Google Patents
Production process for hot-rolled composite blank Download PDFInfo
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- CN104550233A CN104550233A CN201410792004.8A CN201410792004A CN104550233A CN 104550233 A CN104550233 A CN 104550233A CN 201410792004 A CN201410792004 A CN 201410792004A CN 104550233 A CN104550233 A CN 104550233A
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- Prior art keywords
- plate
- blank
- plied timber
- parent metal
- production technology
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K15/00—Electron-beam welding or cutting
- B23K15/06—Electron-beam welding or cutting within a vacuum chamber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21B—ROLLING OF METAL
- B21B1/00—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations
- B21B1/38—Metal-rolling methods or mills for making semi-finished products of solid or profiled cross-section; Sequence of operations in milling trains; Layout of rolling-mill plant, e.g. grouping of stands; Succession of passes or of sectional pass alternations for rolling sheets of limited length, e.g. folded sheets, superimposed sheets, pack rolling
- B21B2001/386—Plates
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention relates to a production process of a hot-rolled composite blank. The production process comprises the following steps of: (1), cleaning base metal plates and clad metal plates, and cleaning the surface of a to-be-composited surface by use of a milling machine so that the surface is clean; (2), putting a high-temperature antisticking agent between the two clad metal plates, and putting the two superposed clad metal pates between the two base metal plates; (3), putting base plate metal strips at the parts, which are adjacent to the edges, of a gap between the two base metal plates, and performing spot welding on the base metal plates and the base plate metal strips so that the metal plates are fixed to form a blank; (4), sealing the peripheral edges of the blank by virtue of welding the blank via vacuum electron beam welding so as to form a dual-metal composite steel plate blank; and (5) heating the dual-metal composite steel plate blank in a heating furnace, discharging the blank out of the heating furnace, rolling the blank by virtue of a high-power medium and heavy plate mill, straightening after rolling, and trimming to obtain the hot-rolled composite blank. The production process is simple, good in combination quality, high in efficiency, relatively low in production cost, short in period, easy for production organization and low in loss.
Description
Technical field
The present invention relates to a kind of production technology of high rolling composite blank, belong to metal material production field.
Background technology
Composite metal plate has been widely used in the industries such as the energy, oil, chemical industry, ocean, mining.Along with the intensification be familiar with composite metal plate, the demand of people to composite plate goods increases day by day, and in order to raise the efficiency, reduce production cost, composite billet production technology is updated thereupon, to adapt to improving constantly of composite plate demand.
The impact of Explosion composite assembly climate is comparatively large, and energy consumption is large, do not meet environmental friendliness requirement, and affects batch production by factors such as weather and be difficult to guarantee.Patent 200510033984.4 provides a kind of processing method of soldering high rolling composite blank, and after the method welded seal, boring vacuumizes, and vacuum not easily ensures; This patent also places cored solder between parent metal plate and plied timber plate, after vacuumizing, composite billet is heated to more than the fusing point of cored solder, hot-forming rear cooling on press.Method of the present invention does not contain cored solder between plied timber and basic unit's material by comparison, weld under vacuum conditions, have that technique is simple, composite quality good, efficiency is high, production cost is lower, the cycle is short, be easy to organization of production, advantage that loss is little, the production of various metal composite base can be widely used in.
Summary of the invention
The object of the present invention is to provide a kind of production technology of high rolling composite blank, the technique be welded under being specifically related to a kind of vacuum condition be simple, composite quality good, efficiency is high, production cost is lower, the cycle is short, be easy to the production technology of the high rolling composite blank of organization of production.
Technical scheme of the present invention is as follows:
A production technology for high rolling composite blank, described high rolling composite blank comprises two blocks of parent metal plates, two pieces of plied timber plates, high-temperature adhesion resistant agent and substrate metal bars, and the length of side of plied timber plate is all less than the length of side of parent metal plate, and production technology comprises the following steps:
(1) clean basic unit's metallic plate and plied timber plate, treat composite surface removing surface with milling machine, make clean surface;
(2) place high-temperature adhesion resistant agent by between two blocks of plied timber plates, and the plied timber plate stacked is placed in the middle of two blocks of parent metal plates, and four limits of plied timber plate are equal to the distance on corresponding four limits of parent metal plate; Preferably, described high-temperature adhesion resistant agent is selected from high purity metal oxide ultra fine powder; Preferred, described high-temperature adhesion resistant agent is magnesia superfine powder.
(3) by the space between two blocks of parent metal plates, substrate metal bar is placed at proximal edge place, and the limit of plied timber plate to the distance of substrate metal bar is 10-20mm, at 100-200T/m
2under pressure condition, by parent metal plate and the spot welding of substrate metal bar, obtain the blank of composite billet;
(4) under vacuum, by blank by vacuum electron beam welding blank edge welded seal, form the blank of bimetallic clad steel plate;
(5) heated in heating furnace by the blank of bimetallic clad steel plate, heating-up temperature is 700-1250 DEG C, after coming out of the stove by blank by heavy and medium plate mill rolling, after rolling through aligning, trimming becomes a useful person; Preferably, described heating-up temperature is 900-1150 DEG C.
Further, the ratio of the thickness of described parent metal plate and the thickness of plied timber plate is 20:1-3:1, plied timber plate length 70-90mm less of parent metal plate length, plied timber plate width 70-90mm less of parent metal plate width.
Described parent metal plate is selected from the one in the steel such as Q235B, Q245R, Q345B; Plied timber plate is selected from the one in the metal such as stainless steel, titanium steel.Substrate metal bar and the same material of parent metal plate.
Further, in described step (4), vacuum electron beam welding, weldingvoltage is 30-150KV, and vacuum is 1 × 10
-1-5 × 10
-1pa, welding current is 100-500ma, and speed of welding is 100-500mm/min, and fusion penetration is 10-100mm.
The present invention compared with prior art has the following advantages:
1. blank adopts vacuum electron beam welding, ensure that the vacuum of blank, thus improves the binding ability of method hot rolling plate;
2. adopt substrate metal bar to weld with substrate, reduce the difficulty of dissimilar metal welding, improve solderability;
3., because the coefficient of expansion is different, substrate is different from elongation in compound plate rolling, and bonding jumper and compound plate intermetallic reserve certain interval, can ensure that template is smooth; 4., compared with blast base, this technology is easier to batch production.
Accompanying drawing explanation
Fig. 1 is the perspective view of composite billet of the present invention;
Fig. 2 is composite billet horizontal profile structure schematic diagram of the present invention;
Fig. 3 is composite billet cross-sectional structure schematic diagram of the present invention.
Symbol description:
1 parent metal plate, 2 plied timber plates, 3 high-temperature adhesion resistant agent, 4 substrate metal bars.
Detailed description of the invention
Further describe the present invention below in conjunction with specific embodiment, advantage and disadvantage of the present invention will be more clear along with description.But embodiment is only exemplary, does not form any restriction to scope of the present invention.It will be understood by those skilled in the art that and can modify to the details of technical solution of the present invention and form or replace down without departing from the spirit and scope of the present invention, but these amendments and replacement all fall within the scope of protection of the present invention.
The production technology of embodiment 1 one kinds of high rolling composite blanks, described high rolling composite blank comprises two blocks of parent metal plates 1, two pieces of plied timber plates 2, high-temperature adhesion resistant agent 3 and substrate metal bars 4, the length of side of plied timber plate 2 is all less than the length of side of parent metal plate 1, and production technology comprises the following steps:
(1) clean basic unit's metallic plate and plied timber plate, carry out to be composite removing surface with milling machine, make clean surface;
(2) two blocks of plied timber plates 2 are stacked, light magnesium oxide superfine powder (high-temperature adhesion resistant agent 3) is placed between plied timber plate, and be placed in by the plied timber plate stacked in the middle of two blocks of parent metal plates 1, and the both sides of plied timber plate 2 correspondence are equal to the distance on the corresponding both sides of parent metal plate 1;
(3) by the space between two blocks of parent metal plates 1, substrate metal bar 4 is placed at proximal edge place, and the limit of plied timber plate 2 to the distance of substrate metal bar 4 is 10mm, at 150T/m
2under pressure condition, by parent metal plate and the spot welding of substrate metal bar, obtain the blank of composite billet;
(4) under vacuum, by blank by vacuum electron beam welding blank edge welded seal, form the blank of bimetallic clad steel plate;
(5) heated in heating furnace by the blank of bimetallic clad steel plate, heating-up temperature is 1000-1200 DEG C, after coming out of the stove by blank by 2500 tons of jobbing sheet-rolling mill rollings, after rolling through aligning, trimming becomes a useful person;
The ratio of the thickness of described parent metal plate and the thickness of plied timber plate is 4:1;
Described parent metal plate is Q245R; Described plied timber plate is 316L;
In described step (4), vacuum electron beam welding, weldingvoltage is 80-110KV, and vacuum is 1.1 × 10
-1-1.3 × 10
-1pa, welding current is 100-280ma, and speed of welding is 270mm/min, and fusion penetration is 45mm.
Embodiment 2 one kinds of high rolling composite blanks, 30mm(5mm+ 25mm) production technology of thick 304/Q345B stainless steel/carbon composite plate, described composite plate billet size: 240 × 1620 × 2500(mm), comprise two blocks of parent metal plates 1, two pieces of plied timber plates 2, high-temperature adhesion resistant agent 3 and substrate metal bars 4; Described parent metal plate 1 is the thick Q235B steel plate of 100mm, is of a size of 100 × 1620 × 2500mm(mm); Described plied timber plate 2 is the thick 304 corrosion resistant plate sizes of 20mm is 20 × 1500 × 2380mm(mm); Described high-temperature adhesion resistant agent 3 is ultra-fine alumina powder; Described substrate metal bar 4 comprises two 40 × 50 × 2500(mm) Q235B steel plate strip and two 40 × 50 × 1520(mm) Q235B steel plate strip.
Production technology comprises the following steps:
(1) clean basic unit metallic plate 1 and plied timber plate 2, make clean surface; With milling machine by two parent metal plates 1 and plied timber plate 2 removing surface to be composite clean;
(2) two blocks of plied timber plates 2 are stacked, light magnesium oxide superfine powder (high-temperature adhesion resistant agent 3) is placed between plied timber plate, and be placed in by the plied timber plate stacked in the middle of two blocks of parent metal plates 1, and the both sides of plied timber plate 2 correspondence are equal to the distance on the corresponding both sides of parent metal plate 1;
(3) by the space between two blocks of parent metal plates 1, substrate metal bar 4 is placed at proximal edge place, and the limit of plied timber plate 2 to the distance of substrate metal bar 4 is 10mm, at 110T/m
2under pressure condition, by parent metal plate and the spot welding of substrate metal bar, obtain the blank of composite billet;
(4) under vacuum, by blank by vacuum electron beam welding blank edge welded seal, form the blank of bimetallic clad steel plate;
(5) heated in heating furnace by the blank of bimetallic clad steel plate, heating-up temperature is 1000-1200 DEG C, after coming out of the stove by blank by 2500 tons of jobbing sheet-rolling mill rollings, after rolling through aligning, trimming becomes a useful person;
In described step (4), vacuum electron beam welding, weldingvoltage is 50KV, and vacuum is 1 × 10
-1pa, welding current is 120ma, and speed of welding is 120mm/min, and fusion penetration is 35mm.
Embodiment 3 one kinds of high rolling composite blanks, 13(1+ 12) production technology of the thick TA2/Q235B titanium-steel composite board of mm, described composite plate comprises two blocks of parent metal plates 1, two blocks of plied timber plates 2, high-temperature adhesion resistant agent 3 and substrate metal bar 4, described parent metal plate is the thick Q235B steel plate of 120mm, be of a size of: 120 × 1620 × 2300(mm), described plied timber plate is 10mm thick TA2 titanium plate, be of a size of: 10 × 1500 × 2180(mm), described high-temperature adhesion resistant agent 3 is light magnesium oxide superfine powder, described substrate metal bar 4 is Q235B steel plate strip, wherein be of a size of 20 × 50 × 2300(mm) two, be of a size of 20 × 50 × 1520(mm) two,
Production technology comprises the following steps:
(1) clean basic unit metallic plate 1 and plied timber plate 2, make clean surface; With milling machine by clean for the removing surface of parent metal plate 1 and plied timber plate 2;
(2) two blocks of plied timber plates 2 are stacked, light magnesium oxide superfine powder is placed between plied timber plate, and be placed in by the plied timber plate stacked in the middle of two blocks of parent metal plates 1, and the both sides of plied timber plate 2 correspondence are equal to the distance on the corresponding both sides of parent metal plate 1;
(3) by the space between two blocks of parent metal plates 2, substrate metal bar 4 is placed at proximal edge place, and the limit of plied timber plate 2 to the distance of substrate metal bar 4 is 10mm, at 180T/m
2under pressure condition, by parent metal plate and the spot welding of substrate metal bar, obtain the blank of composite billet;
(4) under vacuum, by blank by vacuum electron beam welding blank edge welded seal, form the blank of bimetallic clad steel plate;
(5) heated in heating furnace by the blank of bimetallic clad steel plate, heating-up temperature is 800-1000 DEG C, after coming out of the stove by blank by 4000 tons of heavy and medium plate mill rollings, after rolling through aligning, trimming becomes a useful person;
In described step (4), vacuum electron beam welding, weldingvoltage is 110KV, and vacuum is 1.5 × 10
-1pa, welding current is 350ma, and speed of welding is 400mm/min, and fusion penetration is 50mm.
The mensuration of composite billet performance prepared by test example 1 couple of the present invention
After testing, the composite plate Percentage bound that the embodiment of the present invention 1 is rolled into is 100%, and interface shear strength is 380MPa; The composite plate Percentage bound that the embodiment of the present invention 2 is rolled into is 100%, and interface shear strength is 320MPa; The composite plate Percentage bound that the embodiment of the present invention 3 is rolled into is 100%, and interface shear strength is 310MPa.
Claims (8)
1. the production technology of a high rolling composite blank, it is characterized in that, described high rolling composite blank comprises two blocks of parent metal plates, two pieces of plied timber plates, high-temperature adhesion resistant agent and substrate metal bars, and the length of side of plied timber plate is all less than the length of side of parent metal plate, and production technology comprises the following steps:
(1) clean basic unit's metallic plate and plied timber plate, treat composite surface removing surface with milling machine, make clean surface;
(2) place high-temperature adhesion resistant agent by between two blocks of plied timber plates, and the plied timber plate stacked is placed in the middle of two blocks of parent metal plates, and four limits of plied timber plate are equal to the distance on corresponding four limits of parent metal plate;
(3) substrate metal bar is placed at the space between two blocks of parent metal plates, proximal edge place, and the limit of plied timber plate to the distance of substrate metal bar is 10-20mm, at 100-200T/m
2under pressure condition, by parent metal plate and the spot welding of substrate metal bar, obtain the blank of composite billet;
(4) under vacuum, by blank by vacuum electron beam welding blank edge welded seal, form the blank of bimetallic clad steel plate;
(5) heated in heating furnace by the blank of bimetallic clad steel plate, heating-up temperature is 700-1250 DEG C, after coming out of the stove by blank by heavy and medium plate mill rolling, after rolling through aligning, trimming becomes a useful person.
2. production technology according to claim 1, it is characterized in that, the ratio of the thickness of described parent metal plate and the thickness of plied timber plate is 20:1-3:1, plied timber plate length 70-90mm less of parent metal plate length, plied timber plate width 70-90mm less of parent metal plate width.
3. production technology according to claim 1, is characterized in that, described parent metal plate is selected from the one in the steel such as Q235B, Q245R or Q345B.
4. production technology according to claim 1, is characterized in that, described plied timber plate is selected from stainless steel or titanium steel.
5. production technology according to claim 1, is characterized in that, in described step (2), high-temperature adhesion resistant agent is high purity metal oxide ultra fine powder.
6. production technology according to claim 5, is characterized in that, in described step (2), high-temperature adhesion resistant agent is magnesia superfine powder.
7. production technology according to claim 1, is characterized in that, in described step (4), vacuum electron beam welding, weldingvoltage is 30-150KV, and vacuum is 1 × 10
-1-5 × 10
-1pa, welding current is 100-500ma, and speed of welding is 100-500mm/min, and fusion penetration is 10-100mm.
8. production technology according to claim 1, is characterized in that, in described step (5), in heating furnace, heating-up temperature is 900-1150 DEG C.
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Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105149350A (en) * | 2015-09-01 | 2015-12-16 | 太原科技大学 | Production process for rolling and preparing large corrugated bonding surface metal composite plate |
| CN105598166A (en) * | 2016-01-04 | 2016-05-25 | 燕山大学 | Different-temperature rolling method for preparing stainless steel and carbon steel composite board |
| CN105772926A (en) * | 2016-05-16 | 2016-07-20 | 上海中希合金有限公司 | Production method for precious/cheap metal penetration composite strip material |
| CN105880946A (en) * | 2016-05-25 | 2016-08-24 | 湖南宝津新材料科技有限公司 | Twice-compounding and twice-rolling composite board process |
| CN106140816A (en) * | 2016-09-08 | 2016-11-23 | 广汉程明新材料科技有限公司 | Use the method that mill milling produces titanium and rustless steel Combined roll |
| CN106269963A (en) * | 2016-11-11 | 2017-01-04 | 广汉程明新材料科技有限公司 | The production method of titanium steel composite board |
| CN106695102A (en) * | 2015-11-17 | 2017-05-24 | 鞍钢股份有限公司 | Vacuum electronic welding method for highly-magnetic steel extremely-thick composite board |
| CN107649515A (en) * | 2017-09-30 | 2018-02-02 | 哈尔滨工业大学 | A kind of hot rolling for titanium alloy surface high hardness wear-resisting TiFe/Ti composite coatings method |
| CN108246825A (en) * | 2017-12-25 | 2018-07-06 | 南京钢铁股份有限公司 | A kind of preparation method of TMCP types duplex stainless steel clad plate peculiar to vessel |
| CN108311784A (en) * | 2017-01-18 | 2018-07-24 | 天津大学 | A kind of preparation method of titanium steel ply-metal |
| CN109692873A (en) * | 2017-10-20 | 2019-04-30 | 鞍钢股份有限公司 | A kind of thin compound layer titanium steel composite board and preparation method thereof |
| CN110497160A (en) * | 2019-09-06 | 2019-11-26 | 鞍钢股份有限公司 | A kind of titanium steel composite board vacuum electron beam slot pulling assembly sealing method |
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| CN110681971A (en) * | 2019-09-30 | 2020-01-14 | 鞍钢股份有限公司 | Preparation method of rolled titanium-steel composite plate |
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| CN105149350A (en) * | 2015-09-01 | 2015-12-16 | 太原科技大学 | Production process for rolling and preparing large corrugated bonding surface metal composite plate |
| CN106695102B (en) * | 2015-11-17 | 2018-12-04 | 鞍钢股份有限公司 | A kind of vacuum electronic welding method of the special thick composite plate of high magnetic steel |
| CN106695102A (en) * | 2015-11-17 | 2017-05-24 | 鞍钢股份有限公司 | Vacuum electronic welding method for highly-magnetic steel extremely-thick composite board |
| CN105598166A (en) * | 2016-01-04 | 2016-05-25 | 燕山大学 | Different-temperature rolling method for preparing stainless steel and carbon steel composite board |
| CN105772926A (en) * | 2016-05-16 | 2016-07-20 | 上海中希合金有限公司 | Production method for precious/cheap metal penetration composite strip material |
| CN105880946A (en) * | 2016-05-25 | 2016-08-24 | 湖南宝津新材料科技有限公司 | Twice-compounding and twice-rolling composite board process |
| CN106140816A (en) * | 2016-09-08 | 2016-11-23 | 广汉程明新材料科技有限公司 | Use the method that mill milling produces titanium and rustless steel Combined roll |
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| CN108311784A (en) * | 2017-01-18 | 2018-07-24 | 天津大学 | A kind of preparation method of titanium steel ply-metal |
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