CN110586683A - Production method of wide-specification titanium steel composite board - Google Patents
Production method of wide-specification titanium steel composite board Download PDFInfo
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- CN110586683A CN110586683A CN201910843632.7A CN201910843632A CN110586683A CN 110586683 A CN110586683 A CN 110586683A CN 201910843632 A CN201910843632 A CN 201910843632A CN 110586683 A CN110586683 A CN 110586683A
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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
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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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- 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
- B21B1/38—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
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Abstract
The invention relates to a production method of a wide-specification titanium steel composite plate, which comprises the steps of blank processing and treatment, frame processing and treatment, coating of a separant and sealing welding of a titanium plate, material assembly to form a titanium steel composite blank, centering and vacuumizing welding of the titanium steel composite blank, welding seam inspection, rolling and the like, wherein 2 titanium steel composite plates with target thickness can be manufactured in one production process; the invention adopts the integrated frame to replace a plurality of barrier strips for sealing welding, thereby not only reducing the number of welding joints and improving the welding efficiency, but also reducing the welding heat input to the corner part, and reducing the heat influence on the base metal tissue in the welding process, thereby improving the welding quality; the annular groove is formed in the frame, so that the phenomenon that the corner strength of the rolled finished composite board is low due to the corner effect can be avoided.
Description
Technical Field
The invention relates to the technical field of metal composite material processing, in particular to a production method of a wide-specification titanium steel composite plate.
Background
The rapid development of scientific technology puts higher requirements on metal manufacturing and processing technology, in practical application, the structure of a single material is difficult to meet the use requirement, and a composite structure adopting dissimilar materials can have the advantages of two materials, so that the cost is reduced to the maximum extent and the performance is improved.
In the metal composite material, the titanium steel composite plate has excellent corrosion resistance of the titanium composite layer and the strength and plasticity of the basic structure steel, and the economic cost is greatly reduced compared with the titanium plate, particularly, the double-sided titanium steel composite plate has extremely strong integral corrosion resistance because the surface layer is the titanium plate, is an ideal material for manufacturing corrosion-resistant environmental equipment, and is popularized and applied in the fields of petrochemical industry, salt production, electric power, seawater desalination, ocean engineering and the like, and has extremely great application potential.
At present, the method for producing the titanium steel composite plate mainly comprises 4 methods, namely: explosion cladding, diffusion cladding, explosion cladding-rolling, and rolling cladding. The titanium steel composite plates produced by the former two processes are limited in size and sometimes difficult to meet the requirements of users, and in addition, the two methods are only adopted in certain special fields and have a tendency of being eliminated abroad in the production operation of the current high-capacity rolling mill. The latter two methods can produce large-size titanium steel composite plates, but the explosive welding-rolling method has complex procedures, a plurality of factors influencing the bonding strength of the composite plates, large energy consumption, environmental pollution and relatively low yield, and has the tendency of being replaced by the rolling composite method. In recent years, a plurality of scholars research on the technology of preparing titanium steel composite plates by a rolling and compounding method, and the assembly method of the titanium steel composite plates is paid close attention as a basic link for preparing the composite plates. The common assembly method is to stack the carbon steel plate and the titanium plate in sequence, and seal-weld the titanium plate to the core of the composite blank by adding the carbon steel bar.
Chinese patent publication No. CN 102773670a discloses a method for manufacturing a titanium-steel-titanium double-sided composite board, which is an assembly method for producing a double-sided titanium-steel composite board by stacking three carbon steel plates and four titanium plates in sequence and sealing and welding the titanium plates by using barrier strips.
Chinese patent publication No. CN 101992344a discloses a method for manufacturing a titanium-steel composite plate, in which titanium plates are opposed to and completely overlapped with the surfaces of steel plates to form a combined blank, four titanium plates are used as side sealing plates to seal the periphery of the combined blank, and then the combined blank is sealed and welded.
Chinese patent with publication number CN 104874634A discloses a material assembling method and a rolling method of a titanium steel composite plate, which mainly comprise the following steps: preparing two steel plates, two titanium plates and four side plates, perforating at least one of the side plates, adopting the four side plates and the two steel plates to coat the two titanium plates in the center, and then sealing and welding.
The above technical solutions all have the following problems: the carbon steel strip or the titanium strip is adopted for sealing welding of the composite blank, so that higher requirements are provided for machining of the holding strip, and if the straightness is not enough, the vacuum electron beam cannot be used for sealing welding. Meanwhile, the sealing welding process is complex, and not only 8 long straight-side welding seams but also 4 short vertical sides need to be sealed and welded. Because the same position is repeatedly affected by welding heat, the corner part is easy to crack and the seal welding is easy to lose efficacy in the subsequent heating and rolling processes.
Disclosure of Invention
The invention provides a production method of a wide-specification titanium steel composite plate, which adopts an integrated frame to replace a plurality of barrier strips for sealing welding, thereby not only reducing the number of welding joints and improving the welding efficiency, but also reducing the welding heat input to the corner part, reducing the heat influence on the base metal structure in the welding process and further improving the welding quality; the annular groove is formed in the frame, so that the phenomenon that the corner strength of the rolled finished composite board is low due to the corner effect can be avoided.
In order to achieve the purpose, the invention adopts the following technical scheme:
a production method of a wide-specification titanium steel composite plate comprises the steps that the titanium steel composite plate is composed of a titanium steel coating layer and a carbon steel base layer, and the width of the titanium steel composite plate is more than or equal to 3 m; the production process of the titanium steel composite plate comprises the following steps:
(1) selecting 2 carbon steel plates and 2 titanium plates as blanks, wherein the length of the carbon steel plate is equal to the length of the titanium plate plus 60-300 mm, and the width of the carbon steel plate is equal to the width of the titanium plate plus 60-300 mm; respectively processing the carbon steel plate and the titanium plate according to the required specification, wherein the milling depth of one side is more than or equal to 5 mm; the processed surface has no defect, and the surface roughness Ra is less than 5.5 mu m;
(2) selecting carbon steel with the thickness of 2+ (3-8) mm as the thickness of the titanium plate, and processing the carbon steel into a frame, wherein the length and the width of the outer edge of the frame are the same as those of the carbon steel plate, the length of the inner edge of the frame is the length of the titanium plate plus 2-5 mm, and the width of the inner edge of the frame is the width of the titanium plate plus 5-15 mm; respectively processing 1 annular groove on the upper surface and the lower surface of the frame close to the inner edge, wherein the depth of each annular groove is 3-5 mm, and the width of each annular groove is 10-50 mm;
(3) wiping one side surface of the processed titanium plate, coating a release agent on the side surface, and airing, wherein the thickness of the release agent is 0.4-0.8 mm; polishing the other side surface of the titanium plate to ensure that the surface of the titanium plate is free of pickling solution, and then wiping the titanium plate clean;
(4) stacking the surfaces of 2 titanium plates coated with the release agent oppositely, completely removing the side oxide layer, fixing by spot welding, placing on a rotary trolley of vacuum electron beam welding equipment for welding and positioning, then sending into a vacuum chamber for vacuumizing, and then carrying out electron beam welding at a welding current of 50-150A and a welding speed of 10-15 mm/s; after the sealing and welding of the titanium plate are finished, polishing and cleaning the upper surface and the lower surface of the titanium plate;
(5) cleaning and processing each surface of the blank contacted with other materials respectively to remove a rust layer and an oxide layer;
(6) assembling the carbon steel plate, the titanium plate after sealing and welding and the carbon steel plate in sequence from bottom to top, namely horizontally placing the carbon steel plate at the lowest layer, stacking the titanium plate after sealing and welding on the carbon steel plate, sleeving a frame around the titanium plate after sealing and welding, and finally placing the carbon steel plate at the upper layer;
(7) putting the titanium steel composite blank obtained after the material assembly in the step (6) into a centering machine, centering an upper carbon steel plate, a lower carbon steel plate and a frame, and placing a stack plate blank on the top of the titanium steel composite blank after centering to ensure that the gap of each joint surface in the titanium steel composite blank is not more than 0.5 mm;
(8) sending the centered titanium steel composite blank to vacuum electron beam welding equipment for vacuum pumping welding, wherein the vacuum degree is less than 10 < -2 > Pa, performing spot welding and then continuous welding in a symmetrical welding mode, wherein the welding current is 100-150 mA during spot welding, and the welding speed is 8-10 mm/s; welding current is 350-400 mA during continuous welding, and welding speed is 6-8 mm/s;
(9) inspecting the quality of the welded seam by using an electron beam welded seam secondary electron imaging system after welding;
(10) and heating the titanium steel composite blank qualified by inspection to 900-920 ℃, keeping the temperature, wherein the initial rolling temperature is 700-900 ℃, and splitting the titanium steel composite blank after rolling to obtain 2 titanium steel composite plates with the target thickness.
The weight percentage content of C in the carbon steel plate is less than or equal to 0.22 percent.
The titanium plate and the carbon steel plate are continuous casting billets, intermediate billets or finished plates.
The frame is of an integral structure or a split structure.
Compared with the prior art, the invention has the beneficial effects that:
1) the integrated frame is adopted to replace a plurality of barrier strips for sealing welding, so that the number of welding joints is reduced, and the welding efficiency is improved;
2) the frame sealing welding is adopted, so that the welding heat input to the corner part is reduced, the heat influence on the base metal structure in the welding process is reduced, and the welding quality is improved;
3) the method of sealing and welding the titanium plate firstly and then assembling and sealing and welding the composite plate is adopted, the purpose of sealing and welding the titanium plate is to seal the separant in the titanium plate, so that the hidden danger that the separant scatters to pollute the composite layer is avoided;
4) annular grooves are respectively formed in the upper surface and the lower surface of the frame near the inner edge, so that the phenomenon of low corner strength of a rolled finished composite plate due to corner effect is avoided;
5) the assembly efficiency of the titanium steel composite board is improved, the operation is simple, and the produced titanium steel composite board has stable quality and performance.
Drawings
FIG. 1 is a schematic structural view of a titanium steel composite blank according to the present invention.
Fig. 2 is a top view of fig. 1.
In the figure: 1. carbon steel plate 2, frame 3, titanium plate 4, isolating agent 5 and annular groove
Detailed Description
The invention relates to a production method of a wide-specification titanium steel composite plate, wherein the titanium steel composite plate consists of a titanium steel coating layer and a carbon steel base layer, and the width of the titanium steel composite plate is more than or equal to 3 m; the production process of the titanium steel composite plate comprises the following steps:
(1) selecting 2 carbon steel plates and 2 titanium plates as blanks, wherein the length of the carbon steel plate is equal to the length of the titanium plate plus 60-300 mm, and the width of the carbon steel plate is equal to the width of the titanium plate plus 60-300 mm; respectively processing the carbon steel plate and the titanium plate according to the required specification, wherein the milling depth of one side is more than or equal to 5 mm; the processed surface has no defect, and the surface roughness Ra is less than 5.5 mu m;
(2) selecting carbon steel with the thickness of 2+ (3-8) mm as the thickness of the titanium plate, and processing the carbon steel into a frame, wherein the length and the width of the outer edge of the frame are the same as those of the carbon steel plate, the length of the inner edge of the frame is the length of the titanium plate plus 2-5 mm, and the width of the inner edge of the frame is the width of the titanium plate plus 5-15 mm; as shown in fig. 1 and 2, 1 annular groove 5 is respectively processed on the upper surface and the lower surface of the frame 2 near the inner edge, the depth of the annular groove 5 is 3-5 mm, and the width of the annular groove 5 is 10-50 mm;
(3) wiping one side surface of the processed titanium plate, coating a release agent on the side surface, and airing, wherein the thickness of the release agent is 0.4-0.8 mm; polishing the other side surface of the titanium plate to ensure that the surface of the titanium plate is free of pickling solution, and then wiping the titanium plate clean;
(4) as shown in figure 1, 2 titanium plates 3 are oppositely stacked together with one side coated with a release agent 4, the side oxide layer is completely removed, the titanium plates are placed on a rotating platform vehicle of vacuum electron beam welding equipment for welding and positioning after spot welding and fixing, then the titanium plates are sent into a vacuum chamber for vacuum pumping and then electron beam welding is carried out, the welding current is 50-150A, and the welding speed is 10-15 mm/s; after the sealing and welding of the titanium plate are finished, polishing and cleaning the upper surface and the lower surface of the titanium plate;
(5) cleaning and processing each surface of the blank contacted with other materials respectively to remove a rust layer and an oxide layer;
(6) as shown in fig. 1 and 2, the carbon steel plate 1, the titanium plate 3 after the sealing and welding and the carbon steel plate 1 are sequentially assembled from bottom to top, that is, the carbon steel plate 1 at the lowest layer is horizontally placed, the titanium plate 3 after the sealing and welding is stacked on the carbon steel plate 1, then the frame 2 is sleeved on the periphery of the titanium plate 3 after the sealing and welding is completed, and finally the carbon steel plate at the upper layer is placed;
(7) putting the titanium steel composite blank obtained after the material assembly in the step (6) into a centering machine, centering an upper carbon steel plate, a lower carbon steel plate and a frame, and placing a stack plate blank on the top of the titanium steel composite blank after centering to ensure that the gap of each joint surface in the titanium steel composite blank is not more than 0.5 mm;
(8) sending the centered titanium steel composite blank to vacuum electron beam welding equipment for vacuum pumping welding, wherein the vacuum degree is less than 10 < -2 > Pa, performing spot welding and then continuous welding in a symmetrical welding mode, wherein the welding current is 100-150 mA during spot welding, and the welding speed is 8-10 mm/s; welding current is 350-400 mA during continuous welding, and welding speed is 6-8 mm/s;
(9) inspecting the quality of the welded seam by using an electron beam welded seam secondary electron imaging system after welding;
(10) and heating the titanium steel composite blank qualified by inspection to 900-920 ℃, keeping the temperature, wherein the initial rolling temperature is 700-900 ℃, and splitting the titanium steel composite blank after rolling to obtain 2 titanium steel composite plates with the target thickness.
The weight percentage content of C in the carbon steel plate is less than or equal to 0.22 percent.
The titanium plate and the carbon steel plate are continuous casting billets, intermediate billets or finished plates.
The frame 2 is of an integral structure or a split structure.
The following examples are carried out on the premise of the technical scheme of the invention, and detailed embodiments and specific operation processes are given, but the scope of the invention is not limited to the following examples. The methods used in the following examples are conventional methods unless otherwise specified.
[ examples ] A method for producing a compound
The titanium steel composite board which takes TA2 as a composite material and Q235B as a base material is produced by the embodiment, the thickness of the finished product is 2+8mm, and the specific implementation process is as follows:
firstly, preparing raw materials;
1. and (3) compounding a plate: the material TA2, medium plate finished product, dimension 25mm (thickness) x 2086mm (width) x 2868mm (length). Processing requirements are as follows: the surface is flat and free of defects, wedge shapes and sickle curves are not allowed to appear, the unevenness is less than or equal to 3mm/m, and the roughness Ra is less than 5.5 mu m;
2. substrate: material Q235, size 175mm (thickness) x 2196mm (width) x 3000mm (length);
3. frame: the outer edge of the frame is 55mm (thickness) x 2196mm (width) x 3000mm (length), and the inner edge is 55mm (thickness) x 2096mm (width) x 2878mm (length). Then, 1 annular groove is respectively processed on the upper surface and the lower surface of the frame near the inner edge, and the section size of the annular groove is 4mm (depth) multiplied by 50mm (width).
4. And others: industrial alcohol with a concentration of 99.95%; non-woven fabrics; a release agent.
Secondly, material assembling and welding;
1. the processed titanium plate is characterized in that greasy dirt, dust and the like on the surface of one side are wiped clean, and then a separant is coated on the surface, wherein the thickness of the separant is 0.5 mm. And after the separant is coated, standing in dry air for airing, wherein the standing time is 15 h.
2. After the separant is dried in the air, the other side surface (joint surface) of the titanium plate is lightly polished by an abrasive belt machine until the surface is free of pickling solution, and the titanium plate is wiped clean by dipping non-woven fabric in alcohol.
3. The method comprises the steps of oppositely stacking 2 titanium plates coated with a separant, completely polishing oxide layers on the side faces of the stacked titanium plates, welding spot welding points of about 5mm at intervals of 200mm, placing the spot-welded titanium plates on a rotary trolley of vacuum electron beam welding equipment for welding and positioning, and then conveying the titanium plates into a vacuum chamber for vacuumizing and then carrying out electron beam welding. The welding current is 100mA, and the welding speed is 10 mm/s.
4. As shown in fig. 1 and 2, symmetrically assembling the Q235 carbon steel plate, the titanium plate after sealing and welding and the Q235 carbon steel plate from top to bottom in sequence, namely, firstly, horizontally placing the blank at the lowest layer, stacking the titanium plate after sealing and welding on the blank, then sleeving a frame on the periphery of the titanium plate, and finally placing the carbon steel plate at the upper layer; the assembly process is to keep all surfaces clean and clean.
5. And (3) sending the combined blank to a vacuum electron beam welding box for welding, wherein the spot welding current is 100mA, the welding speed is 8mm/s, the continuous welding current is 350mA, the welding speed is 6mm/s, the spot welding is firstly carried out and then the continuous welding is carried out, and the welding principle is symmetrical welding.
6. And (4) after welding, utilizing an electron beam welding seam secondary electron imaging system to check the quality of the welding seam, if welding defects exist, carrying out repair welding, and if no defects exist, directly feeding into a furnace for heating.
7. And heating the titanium steel composite blank to 900-920 ℃, preserving heat, rolling at 900 ℃, and splitting after rolling to obtain 2 titanium steel composite plates with target thickness.
In the embodiment, the flaw detection results of the rolled titanium steel composite plate are all qualified, and all the performances are higher than the user requirements.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (4)
1. The production method of the wide-specification titanium steel composite board is characterized in that the titanium steel composite board consists of a titanium steel coating layer and a carbon steel base layer, and the width of the titanium steel composite board is more than or equal to 3 m; the production process of the titanium steel composite plate comprises the following steps:
(1) selecting 2 carbon steel plates and 2 titanium plates as blanks, wherein the length of the carbon steel plate is equal to the length of the titanium plate plus 60-300 mm, and the width of the carbon steel plate is equal to the width of the titanium plate plus 60-300 mm; respectively processing the carbon steel plate and the titanium plate according to the required specification, wherein the milling depth of one side is more than or equal to 5 mm; the processed surface has no defect, and the surface roughness Ra is less than 5.5 mu m;
(2) selecting carbon steel with the thickness of 2+ (3-8) mm as the thickness of the titanium plate, and processing the carbon steel into a frame, wherein the length and the width of the outer edge of the frame are the same as those of the carbon steel plate, the length of the inner edge of the frame is the length of the titanium plate plus 2-5 mm, and the width of the inner edge of the frame is the width of the titanium plate plus 5-15 mm; respectively processing 1 annular groove on the upper surface and the lower surface of the frame close to the inner edge, wherein the depth of each annular groove is 3-5 mm, and the width of each annular groove is 10-50 mm;
(3) wiping one side surface of the processed titanium plate, coating a release agent on the side surface, and airing, wherein the thickness of the release agent is 0.4-0.8 mm; polishing the other side surface of the titanium plate to ensure that the surface of the titanium plate is free of pickling solution, and then wiping the titanium plate clean;
(4) stacking the surfaces of 2 titanium plates coated with the release agent oppositely, completely removing the side oxide layer, fixing by spot welding, placing on a rotary trolley of vacuum electron beam welding equipment for welding and positioning, then sending into a vacuum chamber for vacuumizing, and then carrying out electron beam welding at a welding current of 50-150A and a welding speed of 10-15 mm/s; after the sealing and welding of the titanium plate are finished, polishing and cleaning the upper surface and the lower surface of the titanium plate;
(5) cleaning and processing each surface of the blank contacted with other materials respectively to remove a rust layer and an oxide layer;
(6) assembling the carbon steel plate, the titanium plate subjected to sealing welding and the carbon steel plate in sequence from bottom to top, namely horizontally placing the carbon steel plate at the lowest layer, stacking the titanium plate subjected to sealing welding on the carbon steel plate, sleeving the frame around the titanium plate subjected to sealing welding, and finally placing the carbon steel plate at the upper layer;
(7) putting the titanium steel composite blank obtained after the material assembly in the step (6) into a centering machine, centering an upper carbon steel plate, a lower carbon steel plate and a frame, and placing a stack plate blank on the top of the titanium steel composite blank after centering to ensure that the gap of each joint surface in the titanium steel composite blank is not more than 0.5 mm;
(8) sending the titanium steel composite blank after being centered to vacuum electron beam welding equipment for vacuum pumping welding, wherein the vacuum degree is less than 10- 2Pa, firstly performing spot welding and then continuously welding, wherein a symmetrical welding mode is adopted, the welding current is 100-150 mA during spot welding, and the welding speed is 8-10 mm/s; welding current is 350-400 mA during continuous welding, and welding speed is 6-8 mm/s;
(9) inspecting the quality of the welded seam by using an electron beam welded seam secondary electron imaging system after welding;
(10) and heating the titanium steel composite blank qualified by inspection to 900-920 ℃, keeping the temperature, wherein the initial rolling temperature is 700-900 ℃, and splitting the titanium steel composite blank after rolling to obtain 2 titanium steel composite plates with the target thickness.
2. The method for producing a wide specification titanium steel composite plate according to claim 1, wherein the content of C in the carbon steel plate is less than or equal to 0.22% by weight.
3. The method for producing a wide-specification titanium steel composite plate according to claim 1, wherein the titanium plate and the carbon steel plate are continuous casting blanks, intermediate blanks or finished plates.
4. The method for producing the wide-specification titanium steel composite plate according to claim 1, wherein the frame is of an integral structure or a split structure.
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| CN111346918A (en) * | 2020-04-20 | 2020-06-30 | 湖南卡密尔新材料科技有限公司 | Production method of titanium steel composite board |
| CN111673275A (en) * | 2020-05-25 | 2020-09-18 | 中山大学 | Vacuum laser composite preparation method of titanium steel composite plate |
| CN113441912A (en) * | 2021-06-28 | 2021-09-28 | 西部金属材料股份有限公司 | Preparation method of oversized titanium alloy plate |
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| CN111673275A (en) * | 2020-05-25 | 2020-09-18 | 中山大学 | Vacuum laser composite preparation method of titanium steel composite plate |
| CN113441912A (en) * | 2021-06-28 | 2021-09-28 | 西部金属材料股份有限公司 | Preparation method of oversized titanium alloy plate |
| CN113441912B (en) * | 2021-06-28 | 2023-05-02 | 西部金属材料股份有限公司 | Preparation method of ultra-large titanium alloy plate |
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