CN104259772A - Method for manufacturing titanium-steel composite plate - Google Patents
Method for manufacturing titanium-steel composite plate Download PDFInfo
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- CN104259772A CN104259772A CN201410446843.4A CN201410446843A CN104259772A CN 104259772 A CN104259772 A CN 104259772A CN 201410446843 A CN201410446843 A CN 201410446843A CN 104259772 A CN104259772 A CN 104259772A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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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
- B21B1/22—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 plates, strips, bands or sheets of indefinite length
- B21B1/224—Edge rolling of flat products
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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
- B21B1/22—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 plates, strips, bands or sheets of indefinite length
- B21B2001/225—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 plates, strips, bands or sheets of indefinite length by hot-rolling
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Abstract
The invention provides a method for manufacturing a titanium-steel composite plate. The method sequentially comprises the following steps that at least one of abrasive blasting, pickling, machining and cleaning is adopted to conduct treatment on the surface of a steel plate or a steel blank and the surface of a titanium plate; a clad layer is formed in the surface, to be composited, of the steel plate or the steel blank, and one surface of the titanium plate is coated with a high-temperature-resistant barrier coating; the symmetrical assembly method is adopted to combine the steel plate or the steel blank with the titanium plate, and the steel plate or the steel blank is placed on the outmost side; edging adding and closed welding are adopted on the steel plate or the steel blank and the titanium plate which are combined, then the vacuum electron beam welding method is adopted for vacuumizing and welding, and therefore a combined blank is obtained; the combined blank is heated to 820 DEG C-950 DEG C, hot rolling is conducted, and therefore a rolled plate is obtained, wherein the initial rolling temperature is controlled to be 820 DEG C-900 DEG C, and the final rolling temperature is controlled to be higher than 650 DEG C,; the four edges of the rolled plate are cut off, and therefore the titanium-steel composite plate is obtained.
Description
Technical field
The invention belongs to titanium-steel composite board technical field, specifically, the present invention relates to a kind of method adopting Hot rolling to manufacture titanium-steel composite board.
Background technology
Titanium-steel composite board is a kind of important feature material grown up the sixties in 20th century, this material makes the very greatly different titanium of performance difference and steel realize metallurgical binding, thus realize the allocation optimum of different materials resource, greatly save valuable titanium, reduce use cost, therefore, titanium-steel composite board has broad application prospects.
The main method of current production titanium-steel composite board is Explosion composite method, and the rarely seen supply of titanium-steel composite board material of large industrial Rolling Production.Explosion composite method is placed on by Substrate sheet on a smooth firm workbench (being generally cement plate), then the titanium plate being used for making composite plate is placed on the top of Substrate sheet with certain angle, again explosive is placed on above titanium plate, in order to prevent thinner titanium plate from damaging, usually between explosive and titanium plate place mat layer of metal or other material as cushion pad.Then, ignition charge, the strong impacts produced by explosive charge, makes titanium plate and steel plate produce extremely strong angular impact, and the energy that this collision produces makes the interface cohesion of two plates, thus obtains the titanium-steel composite board with certain shear strength.
Explosion composite method can meet the bond strength requirement of titanium-steel composite board, but have that lumber recovery is relatively low, environmental pollution, the aspect such as noise and safety deficiency.Compared with the titanium-steel composite board produced with Explosion composite method, rolling (being generally Hot rolling) is simple, and can produce the composite board of more wide cut, more thin coating, simultaneously, rolling is lower to environmental requirement, more can realize the requirement of producing in batches.
When adopting Hot rolling to produce titanium-steel composite board in the prior art, in order to improve interface bond strength, many employing foil intermediate layers at present, as nickel-base alloy etc.But this method operation easier is large, and is unfavorable for the production of large format composite plate.In addition, composite plate can be divided into one side coating composite plate and two-sided coating composite plate, and the titanium-steel composite board produced at present is mainly one side coating, and the composite plate of two sides coating is then relatively little, the particularly titanium-steel composite board of two-sided coating, commercially rarely seen supply especially.The titanium-steel composite board of two-sided coating can meet the specific demand in the fields such as petrochemical industry, ocean, boats and ships, chemical industry further, has broad application prospects.
Summary of the invention
The object of the present invention is to provide a kind of method of novel manufacture rolling type titanium-steel composite board, according to the method, not only can produce one side coating titanium-steel composite board, but also two-sided coating titanium-steel composite board can be produced.The titanium-steel composite board that method according to the present invention is produced, its recombination rate is more than more than 99.5%, and shear strength is more than 200MPa.
According to the present invention, a kind of method manufacturing titanium-steel composite board, described method comprises the following step that order performs: adopt at least one method in sandblasting, pickling, machining and cleaning, processes steel plate or the surface of steel billet and the surface of titanium plate; The surface to be composite of steel plate or steel billet forms coating, high temperature resistant barrier coating is brushed on a surface of titanium plate; Adopt symmetrical assembly method steel plate or steel billet and titanium plate to be combined, and steel plate or steel billet are placed in outermost; The steel plate combined or steel billet are added to edge strip with titanium plate and carry out closing and weld, then adopt vacuum electron beam welding method vacuumize and weld, thus obtain combination blank; By the temperature of combination blank heating to 820 DEG C ~ 950 DEG C, then carry out hot rolling, controlling start rolling temperature is 820 DEG C ~ 900 DEG C, controls finishing temperature and is greater than 650 DEG C, thus obtain rolled plate; Four limits of excision rolled plate, thus obtain titanium-steel composite board.
According to one exemplary embodiment of the present invention, the step that the surface to be composite of steel plate or steel billet is formed coating comprises: plated nickel, copper or pure iron are to form coating on the surface to be composite of steel plate or steel billet can to adopt electro-plating method or chemical plating method, and the thickness of coating can be 10 μm ~ 50 μm.
According to one exemplary embodiment of the present invention, described combination blank by two block plates or steel billet and can be placed between described two block plates or steel billet and contact with each other two blocks of titanium plates form.The surface to be composite of steel plate or steel billet can be the surface will contacted with titanium plate of steel plate or steel billet, and the step that a surface of titanium plate is brushed high temperature resistant barrier coating can comprise: brush high temperature resistant barrier coating as separation layer at one block of titanium plate using on the surface contacted with another block titanium plate.After four limits of excision rolled plate, two blocks of adjacent titanium plates can be made to be separated along separation layer, thus two one side coating titanium-steel composite boards can be obtained.
According to another exemplary embodiment of the present invention, described combination blank can form by the first steel plate as base material, the second steel plate as cover plate and the 3rd steel plate and as the first titanium plate of cover material and the second titanium plate, wherein, first steel plate is in the middle part of described combination blank, first titanium plate is placed between the first steel plate and the second steel plate, and the second titanium plate is placed between the first steel plate and the 3rd steel plate.The surface to be composite of steel plate or steel billet can be two surfaces contacted with the second titanium plate with the first titanium plate respectively of the first steel plate.The step that a surface of titanium plate is brushed high temperature resistant barrier coating can comprise: the first titanium plate by the surface contacted with the second steel plate with brush high temperature resistant barrier coating as separation layer at the second titanium plate using on the surface contacted with the 3rd steel plate.After four limits of excision rolled plate, the steel plate of both sides can be made to be separated along separation layer with the titanium plate contacted separately, thus a two-sided coating titanium-steel composite board can be obtained.
According to one exemplary embodiment of the present invention, the length of steel plate or steel billet and width can be equal with width with the length of titanium plate respectively.
According to one exemplary embodiment of the present invention, described combination blank can have the width being greater than 1 meter and the length being greater than 2.5 meters.
According to one exemplary embodiment of the present invention, the step of carrying out hot rolling can carry out uni-tension rolling to realize or adopt hot tandem to be rolled realizing by adopting wide and heavy plate mill.
Accompanying drawing explanation
Fig. 1 is the schematic longitudinal section figure combining blank in the process of producing one side coating titanium-steel composite board according to one exemplary embodiment of the present invention.
Fig. 2 is the assembling schematic perspective view combining blank in the process of producing one side coating titanium-steel composite board according to one exemplary embodiment of the present invention.
Fig. 3 is the schematic longitudinal section figure combining blank in the process of producing two-sided coating titanium-steel composite board according to another exemplary embodiment of the present invention.
Fig. 4 is according to the assembling schematic perspective view combining blank in the process of producing two-sided coating titanium-steel composite board of another exemplary embodiment of the present invention.
Detailed description of the invention
Hereinafter with reference to accompanying drawing, various example embodiment is described more fully, example embodiment shown in the drawings.But example embodiment can be implemented in many different forms, and should not be construed as limited to example embodiment set forth herein.Therefore, the present invention can comprise and is allly included in the amendment related in design of the present invention and technical scope, equivalent or substitute.Describe embodiments of the invention process in, when prior art some describe in detail be considered to can unnecessarily fuzzy of the present invention essence time, can omit its describe in detail.
Recognize, in order to understand better and be easy to describe, size and the thickness of the composition component shown in accompanying drawing provide arbitrarily, the invention is not restricted to illustrated size and thickness.As used herein, unless the context clearly indicates otherwise, otherwise " one (kind) " of singulative and " described (being somebody's turn to do) " be also intended to comprise plural form.
The invention provides a kind of manufacture method of rolling type titanium-steel composite board, by this manufacture method, one side coating titanium-steel composite board can not only be produced, but also two-sided coating titanium-steel composite board can be produced.The titanium-steel composite board that method according to the present invention is produced, recombination rate is more than more than 99.5%, and shear strength is more than 200MPa.In the present invention, titanium plate and steel plate are carried out assembling compound and carry out obtained titanium-steel composite board; But, the present invention is not limited thereto, steel billet and titanium plate also can be adopted to carry out assembling compound and carry out obtained titanium-steel composite board.Combination blank can have the width being greater than 1 meter and the length being greater than 2.5 meters.For convenience of description, will be described for steel plate and titanium plate below, but description is below equally applicable to the situation of steel billet and titanium plate.
Describe the manufacture method according to rolling type titanium-steel composite board of the present invention below with reference to accompanying drawings in detail.
The following step of order execution is comprised: (1) adopts at least one method in sandblasting, pickling, machining and cleaning according to the manufacture method of rolling type titanium-steel composite board of the present invention, the surface of steel plate (or steel billet) and the surface of titanium plate are processed, to remove the surperficial oxide layer of plate (base), passivation layer and other dirt; (2) adopt the metal of electro-plating method or chemical plating method plating such as nickel, copper or pure iron on the surface to be composite of steel plate (or steel billet) to form coating, high temperature resistant barrier coating is brushed on a surface of titanium plate, wherein, the thickness of coating can be 10 μm ~ 50 μm; (3) adopt symmetrical assembly method the steel plate (or steel billet) of plating and titanium plate to be assembled, and make steel plate (or steel billet) be the outermost layer assembling blank; (4) with titanium plate, edge strip added to the steel plate assembled (or steel billet) and carry out closing with outmost upper lower steel plate (or steel billet) and weld, then adopt vacuum electron beam welding method vacuumize and carry out soldering and sealing, thus obtain combining blank; (5) by the temperature of combination blank heating to 820 DEG C ~ 950 DEG C, then carry out hot rolling, controlling start rolling temperature is 820 DEG C ~ 900 DEG C, controls finishing temperature and is greater than 650 DEG C, thus obtain rolled plate; (6) excise four limits of rolled plate, obtain titanium steel composite board.
According to method of the present invention, one side coating titanium-steel composite board can be manufactured, also can manufacture two-sided coating titanium-steel composite board.When manufacturing one side coating titanium-steel composite board, need to choose the titanium plate that the equal steel plate (base) of two pieces of sizes is equal with two pieces of sizes, and when manufacturing two-sided coating titanium-steel composite board, need to choose the titanium plate that the equal steel plate (base) of three pieces of sizes is equal with two pieces of sizes.In the present invention, the length of every block plate is equal respectively with width with the length of every block titanium plate with width, and the thickness of steel plate and the thickness of titanium plate can carry out proportioning according to actual demand.When carrying out hot rolling to combination blank, wide and heavy plate mill can be adopted to carry out uni-tension rolling or adopt hot tandem to be rolled.
Below with reference to Fig. 1 Fig. 2, the method according to manufacture one side coating titanium-steel composite board of the present invention is described.
Fig. 1 shows the schematic longitudinal section figure combining blank in the process of producing one side coating titanium-steel composite board according to one exemplary embodiment of the present invention.Fig. 2 shows the assembling schematic perspective view combining blank in the process of producing one side coating titanium-steel composite board according to one exemplary embodiment of the present invention.
See figures.1.and.2, according to this exemplary embodiment of the present invention, the method manufacturing one side coating titanium-steel composite board comprises: choose the equal steel plate (first steel plate 11 and the second steel plate 12) of two pieces of sizes and the equal titanium plate (first titanium plate 13 and the second titanium plate 14) of two pieces of sizes, adopt sandblasting, pickling, machining and at least one method in cleaning are to steel plate 11, the surface of 12 and titanium plate 13, processing of rust removing and removing oxide layer process are carried out in the surface of 14, then, adopt electro-plating method or chemical plating method the first steel plate 11 by plating on the surface that contacts with the first titanium plate 13 by nickel, the intermediate layer 15 that copper or pure iron are formed and the second steel plate 12 by plating on the surface that contacts with the second titanium plate 14 by nickel, the intermediate layer 16 that copper or pure iron are formed, at the first titanium plate 13 and one block of titanium plate in the second titanium plate 14 by the surface that contacts with another block titanium plate (such as, the surface will contacted with the second titanium plate 14 of the first titanium plate 13) above brush high temperature resistant barrier coating (such as, SiO
2coating) as separation layer 17, adopt symmetrical assembly method steel plate 11,12 and titanium plate 13,14 to be combined, wherein, make steel plate 11 and 12 be placed in outermost, (namely edge strip is added to the steel plate 11 and 12 combined and titanium plate 13 and 14, jacket framework 18 is enclosed within the two ends along its length of steel plate 11 and 12 and titanium plate 13,14), by jacket framework 18 with the surface (upper and lower surrounding) that the first steel plate 11 contacts with the second steel plate 12 carry out close weld (such as, argon arc welding is utilized to weld), wherein to ensure that the quality of solder joint (being commonly referred to " weldering meat ") 19 is good, then blank is put into vacuum electron beam welder, weld after evacuation, thus obtain combination blank as shown in Figure 1, by the temperature of combination blank heating to 820 DEG C ~ 950 DEG C, then carry out hot rolling, controlling start rolling temperature is 820 DEG C ~ 900 DEG C, controls finishing temperature and is greater than 650 DEG C, thus obtain rolled plate, four limits of excision rolled plate, thus obtain titanium-steel composite board.
Adopting symmetrical assembly method steel plate and titanium plate carried out combining and the combination blank obtained after welding, 4 layers altogether, by two block plates and to be placed between this two block plate and contact with each other two blocks of titanium plates form.Specifically, combination blank has structure as shown in Figure 1, is followed successively by the first steel plate or lower steel plate 11, first titanium plate or lower titanium plate 13, second titanium plate or upper titanium plate 14, second steel plate or upper steel plate 12 from bottom to up.In this case, coating can be had by plating on the surface contacted with each titanium plate of upper lower steel plate 11,12, such as, the layer of plated nickel (Ni), iron (Fe) or copper (Cu) etc. is as intermediate layer, replace traditional foil intermediate layer, therefore, according to coating layer of the present invention (namely, intermediate layer) compared with traditional foil, can greatly increase work efficiency and reduce costs.In detail, with reference to Fig. 1, plating intermediate layer 15 on the surface contacted with the first titanium plate 13 of the first steel plate 11, plating intermediate layer 16 on the surface contacted with the second titanium plate 13 of the second steel plate 12, high temperature resistant barrier coating is brushed as separation layer 17 in a surface of at least one block of titanium plate 13 and/or 14, thus can separation layer be formed between two titanium plates 13 and 14, so that two titanium plates 13 and 14 being separated after hot rolling.
According to this exemplary embodiment of the present invention, after hot rolling is carried out to combination blank as shown in Figure 1, four limits of excision rolled plate, two pieces of adjacent titanium plate 14 and 15 natural separation or strippings are made along separation layer 17, thus two one side coating titanium-steel composite boards can be obtained, that is, one by the first steel plate 11 as base material and the first titanium plate 13 as the one side coating titanium-steel composite board of coating and second steel plate 12 as base material and the first titanium plate 14 one side coating titanium-steel composite board as coating.
The method of the two-sided coating titanium-steel composite board of manufacture according to the present invention is described below with reference to Fig. 3 and Fig. 4.
Fig. 3 is the schematic longitudinal section figure combining blank in the process of producing two-sided coating titanium-steel composite board according to another exemplary embodiment of the present invention.Fig. 4 is according to the assembling schematic perspective view combining blank in the process of producing two-sided coating titanium-steel composite board of another exemplary embodiment of the present invention.
With reference to Fig. 3 and Fig. 4, according to another exemplary embodiment of the present invention, except the quantity of steel plate chosen and the particular location in coating intermediate layer, the method manufacturing two-sided coating titanium-steel composite board is substantially identical with the method for aforementioned manufacture one side coating titanium-steel composite board, therefore, the description to identical content will be omitted.
According to this exemplary embodiment of the present invention, when manufacturing two-sided coating titanium-steel composite board, choose the titanium plate that the equal steel plate of three pieces of sizes is equal with two pieces of sizes.Specifically, with reference to Fig. 3, combination blank forms by the first steel plate 21 as base material, the second steel plate 24 as cover plate and the 3rd steel plate 25 and as the first titanium plate 22 of cover material and the second titanium plate 23, wherein, first steel plate 21 is in the middle part of combination blank, first titanium plate 22 is placed between the first steel plate 21 and the second steel plate 24, and the second titanium plate 22 is placed between the first steel plate 21 and the 3rd steel plate 25.In other words, steel plate and the titanium plate of combination blank amount to 5 layers, are followed successively by steel plate, titanium plate, steel plate, titanium plate, steel plate from top to bottom.
Continue with reference to Fig. 3, plating intermediate layer 26 on two surfaces contacted with the second titanium plate 23 with the first titanium plate 22 respectively adopting plating or first steel plate 21 of chemical plating at middle part, form separation layer 27 at each titanium plate 22,23 by the surface contacted with steel plate.In detail, separation layer 27 can be formed at the first titanium plate 22 by high temperature resistant barrier coating is brushed on the surface contacted with the second steel plate 24, separation layer 27 can be formed at the second titanium plate 23 by high temperature resistant barrier coating is brushed on the surface contacted with the 3rd steel plate 25.
According to this exemplary embodiment of the present invention, after hot rolling is carried out to combination blank as shown in Figure 3, four limits of excision rolled plate, along separation layer 27, the steel plate 24,25 of both sides is separated with the titanium plate 22,23 contacted separately respectively, thus obtains a two-sided coating titanium-steel composite board be made up of substrate steel sheet 21 and two coating titanium plates 22 and 23.
The method of manufacture rolling type titanium-steel composite board of the present invention is described in further detail below in conjunction with concrete example.
embodiment 1
Utilize Hot rolling to manufacture one side coating titanium-steel composite board, see figures.1.and.2, carry out according to the following steps:
(1) the first titanium plate 13 and the second titanium plate 14 that the first equal steel plate 11 of two pieces of sizes and the second steel plate 12 and two pieces of sizes are equal is chosen respectively.The length of steel plate 11,12 is equal respectively with width with the length of titanium plate 13,14 with width, and thickness is according to demand proportioning;
(2) eliminated rust and removing oxide layer process in the surface of the first steel plate 11, second steel plate 12, and respectively in a side surface electroplated Ni of steel plate 11,12 as intermediate layer 15,16, electroplating time is 1.5h.It is HF+HNO that first titanium plate 13 and the second titanium plate 14 are immersed pickle
3activation process is carried out in mixed aqueous solution; Rinse with clear water after pickling completes, then put into NaOH and H
2o
25 ~ 10min is soaked in mixed aqueous solution; Finally, SiO is coated in the side of the first titanium plate 13 and the second titanium plate 14 (, also can only brushing high-temperature resistant coating on one block of titanium plate) here
2coating is as separation layer 17;
(3) adopt the steel plate easily welded with the steel plate 11,12 as base material as sheath material, make the jacket 20 of an inner hollow, and get through hole 100 in the side of the jacket framework 18 of jacket 20, the aperture of through hole 100 is Φ 10mm.Jacket framework 18 is placed on the object of certain altitude, then the first steel plate 11 is put into jacket framework 18, make the bottom (or lower surface) of bottom (or lower surface) lower than jacket framework 18 of the first steel plate 11.Dry up the organic solvent on the surface of the first titanium plate 13 and the second titanium plate 14 (because the titanium plate after surface treatment is easy to form passivating film fast; cause compound difficulty; so brushing organic solvent can protect titanium plate surface) after; above the first steel plate 11 first titanium plate 13 being overlayed plating Ni, then the second titanium plate 14 scribbled SiO
2the one side of coating 17 scribbles SiO with the first titanium plate 13
2the one side of coating 17 stacks.Then, second steel plate 12 of plating Ni is overlayed on the second titanium plate 14, wherein, the surface being formed with intermediate layer 16 of the second steel plate 12 is contacted with the second titanium plate 14, thus form the symmetrical expression multiple layer combination blank of steel plate-transition zone-titanium plate-interleaving agent-titanium plate-transition zone-steel plate.Finally, utilize argon arc welding to weld the surrounding up and down that jacket framework 18 contacts with the first steel plate 11 and the second steel plate 12, ensure that solder joint 19 is without being mingled with, flawless, without core;
(4) blank that argon arc welding welds is put into vacuum electron beam welder, after utilizing mechanical pump and diffusion pump to vacuumize, vacuum reaches 10
-1pa.With plug (not shown), aspirating hole is blocked (as shown in Figure 2) again, finally with gap (A place in Fig. 2 and the B place) seam of electron beam gun by plug and jacket 20, ensure air tight herein;
(5) vacuumize qualified after, the slab assembled is put into heating furnace, and heating-up temperature is 820 DEG C ~ 950 DEG C; Recycling heavy and medium plate mill carries out multi-pass rolling, obtains rolled plate, wherein, overall reduction >=75% of controlled rolling, and ensure that the first pass deformation is greater than 25%, control milling train low-speed running (that is, 3 passages answer the large pressure rolling of low speed before the operation of rolling) simultaneously;
(6) cut the edge (that is, jacket framework 18) of rolled plate, the contact surface of the first titanium plate 13 and the second titanium plate 14 is natural separation due to the effect of separation layer 17, can obtain required one side coating titanium-steel composite board.
After testing, can reach according to the technical indicator of embodiment 1 products obtained therefrom: a. Surface bond rate is 99.2% ~ 100% (GB8547-2006:95% ~ 100%); B. interface shear strength is 220MPa ~ 270MPa (GB8547-2006:0 class composite plate >=196MPa, 1,2 class composite plate >=138MPa).As can be seen here, reach the technical indicator of expectation according to the one side coating titanium-steel composite board of embodiment 1, can actual needs be advantageously applied to.
embodiment 2
Utilize Hot rolling to manufacture two-sided coating titanium-steel composite board, with reference to Fig. 3 and Fig. 4, carry out according to the following steps:
(1) the titanium plate that the steel plate that preparation 3 pieces of sizes are equal is respectively equal with 2 pieces of sizes, the length of steel plate and width are equal with width with the length of titanium plate respectively, wherein, first steel plate 21 is as base material, first titanium plate 22 and the second titanium plate 23 are as cover material, and the second steel plate 24 and the 3rd steel plate 25 are as cover plate.The thickness of substrate steel sheet and cover material titanium plate is according to demand proportioning, and the thickness of cover plate 24 and 25 is between 10mm ~ 50mm;
(2) eliminated rust and removing oxide layer process in the surface of substrate steel sheet 21, and in two side surface electroplated Ni of steel plate 21 as intermediate layer 26, electroplating time is 1.5h.It is HF+HNO that first titanium plate 22 and the second titanium plate 23 are immersed pickle
3activation process is carried out in mixed aqueous solution; Rinse with clear water after pickling completes, then put into NaOH+H
2o
25min ~ 10min is soaked in mixed aqueous solution; Finally, SiO is coated in the side of the first titanium plate 22 and the second titanium plate 23
2coating is as separation layer 27;
(3) adopt the steel plate easily welded with base material (steel plate) as sheath material, make the jacket 30 of an inner hollow, and get through hole 100 in the side of the jacket framework 28 of jacket 30, aperture is Φ 10mm.Jacket framework 28 is placed on the object of certain altitude, then the second steel plate 24 is put into jacket framework 28, make the bottom (or lower surface) of bottom (or lower surface) higher than jacket framework 28 of the second steel plate 24.The one side with coating of the first titanium plate 22 is overlayed the top of the second steel plate 24, then the first steel plate 21 is placed in the top of the first titanium plate 22.Then, by the activated face of the second titanium plate 22 (namely, the one side of the separation layer 27 be formed) overlay on the first steel plate 21, finally again the 3rd steel plate 25 is superimposed upon on the second titanium plate 23, thus forms the symmetrical expression combination blank of cover plate-titanium plate-transition zone-substrate steel sheet-transition zone-titanium plate-cover plate.Finally, utilize argon arc welding to weld the surrounding up and down that jacket framework 28 and the second steel plate 24 contact with the 3rd steel plate 25, ensure that solder joint 29 is without being mingled with, flawless, without core;
(4) blank that argon arc welding welds is put into vacuum electron beam welder, after utilizing mechanical pump and diffusion pump to vacuumize, vacuum reaches 10
-1pa.With plug (not shown), aspirating hole is blocked (as shown in Figure 4) again, finally with gap (see Fig. 4) seam of electron beam gun by plug and jacket 30, ensure air tight herein;
(5) vacuumize qualified after, the slab assembled is put into heating furnace, and heating-up temperature is 820 DEG C ~ 950 DEG C; Recycling heavy and medium plate mill carries out multi-pass rolling, obtains rolled plate, wherein, and overall reduction >=75% of controlled rolling, and ensure that the first pass deformation is greater than 25%, front 3 passages adopt the large pressure rolling of low speed;
(6) cut the edge (that is, jacket framework 28) of rolling rear steel plate, the surface contacted with titanium plate 22,23 respectively of cover plate 24,25 is natural separation due to the effect of separation layer 27, can obtain required double-sided composite plate.
After testing, can reach according to the technical indicator of embodiment 1 products obtained therefrom: a. Surface bond rate is 99.2% ~ 100% (GB8547-2006:95% ~ 100%); B. interface shear strength is 220MPa ~ 270MPa (GB8547-2006:0 class composite plate >=196MPa, 1,2 class composite plate >=138MPa).As can be seen here, reach the technical indicator of expectation according to the two-sided coating titanium-steel composite board of embodiment 2, can actual needs be advantageously applied to.
Therefore, according to method of the present invention, at least following beneficial effect can be obtained:
The first, adopt plated metal intermediate layer (Ni, Fe, Cu etc.) method to replace the method in foil intermediate layer, save the use of metallic intermediate layer; Slab deformation uniformity can be made on the other hand better, and binding ability is more excellent; The titanium-steel composite board in plating intermediate layer will exceed 30MPa ~ 40MPa than the titanium-steel composite board shear strength stacking foil intermediate layer;
The second, compared with the method for laying foil intermediate layer with faying face, the present invention is applicable to the assembly of large format composite plate, is conducive to mass industrial production;
3rd, according to method of the present invention, both can be used for the production of one side coating titanium-steel composite board, and also can be used for the production of two-sided coating titanium-steel composite board, there is good adaptability.
4th, according to method of the present invention, applicability is high, workable, is applicable to the assembling symmetry rolling of multiple dissimilar metal;
5th, the technical indicator according to method products obtained therefrom of the present invention can reach: a. Surface bond rate reaches 99.5% ~ 100% (GB8547-2006:95% ~ 100%); B. interface shear strength reaches 220MPa ~ 270MPa (GB8547-2006:0 class composite plate >=196MPa, 1,2 class composite plate >=138MPa).
Disclose example embodiment at this, although have employed specific term, only use with descriptive implication with common and explain them, instead of for the object limited.In some cases, as those of ordinary skill in the art will clearly, from when submission the application, the feature described in conjunction with specific embodiments, characteristic and/or element can use individually or use, unless otherwise specializing with the feature, characteristic and/or the elements combination that describe in conjunction with other embodiment.Therefore, it will be understood by those skilled in the art that when not departing from the spirit and scope of the present invention as set forth in the claims, the various changes in form and details can be made.
Claims (10)
1. manufacture a method for titanium-steel composite board, it is characterized in that described method comprises the following step of order execution:
Adopt at least one method in sandblasting, pickling, machining and cleaning, steel plate or the surface of steel billet and the surface of titanium plate are processed;
The surface to be composite of steel plate or steel billet forms coating, high temperature resistant barrier coating is brushed on a surface of titanium plate;
Adopt symmetrical assembly method steel plate or steel billet and titanium plate to be combined, and steel plate or steel billet are placed in outermost;
The steel plate combined or steel billet are added to edge strip with titanium plate and carry out closing and weld, then adopt vacuum electron beam welding method vacuumize and weld, thus obtain combination blank;
By the temperature of combination blank heating to 820 DEG C ~ 950 DEG C, then carry out hot rolling, controlling start rolling temperature is 820 DEG C ~ 900 DEG C, controls finishing temperature and is greater than 650 DEG C, thus obtain rolled plate;
Four limits of excision rolled plate, thus obtain titanium-steel composite board.
2. method according to claim 1, it is characterized in that, the step that the surface to be composite of steel plate or steel billet is formed coating comprises: plated nickel, copper or pure iron are to form coating on the surface to be composite of steel plate or steel billet to adopt electro-plating method or chemical plating method, and the thickness of coating is 10 μm ~ 50 μm.
3. method according to claim 1, is characterized in that, described combination blank is by two block plates or steel billet and to be placed between described two block plates or steel billet and contact with each other two blocks of titanium plates form.
4. method according to claim 3, is characterized in that, the surface to be composite of steel plate or steel billet is the surface will contacted with titanium plate of steel plate or steel billet,
Wherein, the step of a surface of titanium plate being brushed high temperature resistant barrier coating comprises: brush high temperature resistant barrier coating as separation layer at one block of titanium plate using on the surface contacted with another block titanium plate.
5. method according to claim 4, is characterized in that, after four limits of excision rolled plate, two blocks of adjacent titanium plates is separated along separation layer, thus obtains two one side coating titanium-steel composite boards.
6. method according to claim 1, it is characterized in that, described combination blank forms by the first steel plate as base material, the second steel plate as cover plate and the 3rd steel plate and as the first titanium plate of cover material and the second titanium plate, wherein, first steel plate is in the middle part of described combination blank, first titanium plate is placed between the first steel plate and the second steel plate, and the second titanium plate is placed between the first steel plate and the 3rd steel plate.
7. method according to claim 6, is characterized in that, the surface to be composite of steel plate or steel billet is two surfaces contacted with the second titanium plate with the first titanium plate respectively of the first steel plate,
Wherein, the step that a surface of titanium plate is brushed high temperature resistant barrier coating comprises: the first titanium plate by the surface contacted with the second steel plate with brush high temperature resistant barrier coating as separation layer at the second titanium plate using on the surface contacted with the 3rd steel plate,
Wherein, after four limits of excision rolled plate, the steel plate of both sides is separated along separation layer with the titanium plate contacted separately, thus obtains a two-sided coating titanium-steel composite board.
8. method according to claim 1, is characterized in that, the length of steel plate or steel billet and width are equal with width with the length of titanium plate respectively.
9. method according to claim 1, is characterized in that, described combination blank has the width being greater than 1 meter and the length being greater than 2.5 meters.
10. method according to claim 1, is characterized in that the step of carrying out hot rolling carries out uni-tension rolling to realize or adopt hot tandem to be rolled realizing by adopting wide and heavy plate mill.
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