CN114523185B - Vacuum diffusion composite welding production process for high-alloy thick plate blank - Google Patents
Vacuum diffusion composite welding production process for high-alloy thick plate blank Download PDFInfo
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- CN114523185B CN114523185B CN202210133157.6A CN202210133157A CN114523185B CN 114523185 B CN114523185 B CN 114523185B CN 202210133157 A CN202210133157 A CN 202210133157A CN 114523185 B CN114523185 B CN 114523185B
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- 238000003466 welding Methods 0.000 title claims abstract description 58
- 239000002131 composite material Substances 0.000 title claims abstract description 35
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 30
- 239000000956 alloy Substances 0.000 title claims abstract description 30
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 20
- 238000009792 diffusion process Methods 0.000 title claims abstract description 19
- 238000005266 casting Methods 0.000 claims abstract description 90
- 238000010438 heat treatment Methods 0.000 claims abstract description 42
- 238000005096 rolling process Methods 0.000 claims abstract description 31
- 238000000034 method Methods 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims abstract description 7
- 238000013329 compounding Methods 0.000 claims abstract description 5
- 238000009461 vacuum packaging Methods 0.000 claims abstract description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 50
- 239000010959 steel Substances 0.000 claims description 50
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 8
- 238000001816 cooling Methods 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 4
- 239000000428 dust Substances 0.000 claims description 4
- 239000012535 impurity Substances 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 claims description 4
- 238000010079 rubber tapping Methods 0.000 claims description 4
- 239000000126 substance Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 3
- 238000010894 electron beam technology Methods 0.000 description 5
- 238000003723 Smelting Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 3
- 229910052799 carbon Inorganic materials 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 229910000851 Alloy steel Inorganic materials 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/04—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating by means of a rolling mill
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/14—Preventing or minimising gas access, or using protective gases or vacuum during welding
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/24—Preliminary treatment
-
- 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
- B23K20/00—Non-electric welding by applying impact or other pressure, with or without the application of heat, e.g. cladding or plating
- B23K20/26—Auxiliary equipment
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/10—Greenhouse gas [GHG] capture, material saving, heat recovery or other energy efficient measures, e.g. motor control, characterised by manufacturing processes, e.g. for rolling metal or metal working
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Metal Rolling (AREA)
- Pressure Welding/Diffusion-Bonding (AREA)
Abstract
The invention belongs to the technical field of thick plate welding, and particularly relates to a high-alloy thick plate blank vacuum diffusion composite welding production process, which comprises the following steps: processing a high alloy casting blank and a rectangular ring; combining casting blanks; vacuum packaging; heating and compounding a casting blank; and (5) heating and rolling the casting blank. The invention adopts the vacuum diffusion welding process to realize the welding of the high alloy composite billet, does not need expensive vacuum welding equipment, combines the post-heat procedures of welding and preheating, reduces the cost, reduces the production procedures and improves the production efficiency; the rectangular rings made of the same material are designed and used for supporting the periphery of the composite surface of the casting blank, so that the contact area between the casting blanks is greatly reduced, the contact pressure of the casting blanks to the rectangular blanks is improved, the joint contact and the diffusion connection of the interfaces between the casting blanks and the rectangular rings are promoted, the aim of sealing and welding the edges of the casting blanks is fulfilled, and the metal yield is improved.
Description
Technical Field
The invention belongs to the technical field of thick plate welding, and particularly relates to a vacuum diffusion composite welding production process for a high-alloy thick plate blank.
Background
Composite manufacture of welded steel slabs of thick steel plates generally seals the peripheral seams of two or more steel slabs with cleaned bonding surfaces in a vacuum chamber by electron beam welding. For the production of welded composite billets with higher strength and high alloy, because of the high carbon equivalent of the steel grade composition design, there is a possibility of weld cold cracking without preheating the direct weld joints and the heat affected zone. At present, the welding production process of the high alloy composite billet comprises two processes: a vacuum electron beam welding is adopted after pre-welding of a composite casting blank, and a pre-welding and post-welding heat treatment process and facilities are required to be added to avoid the generation of cold cracks of a vacuum electron beam welding seam and a heat affected zone so as to ensure the welding quality of a welded composite blank. The other technique is to weld steel plates or deposited metal with low carbon steel components around the joint surface of the steel billets with higher strength and high alloy, and combine the steel billets face to face after the joint surface is processed and cleaned up, and vacuum electron beam welding is carried out without preheating. The welding fusion part is converted into low-carbon low-alloy component metal to be welded, so that preheating and a vacuum heating furnace are not needed. The two processes have longer processing flow and lower production efficiency, and expensive vacuum welding equipment is required. The two processes are implemented by conventional assembly blank turning machinery, a vacuum electron beam welding machine and other machinery, and a vacuum heating furnace is added in the first process; the second process does not require a vacuum furnace, but because of the introduction of dissimilar metals into the weld transition zone, the metal yield of the actual steel sheet may be reduced in view of the fact that this portion does not coincide with the major components of the steel.
Disclosure of Invention
The invention provides a vacuum diffusion composite welding production process for a high alloy thick plate blank, which aims to simplify the composite production process for the high alloy steel blank, reduce the equipment purchase and operation cost and improve the metal yield.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a high alloy thick plate blank vacuum diffusion composite welding production process specifically comprises the following steps:
(1) Processing a high alloy casting blank and a rectangular ring: the high alloy casting blank and the rectangular ring have the same chemical components, the surfaces of the casting blank and the rectangular ring are processed smoothly, and the appearance processing size is basically equivalent.
(2) And (3) casting blank combination: the surfaces of the two cleaned casting blanks are combined face to face, rectangular rings are arranged between the casting blanks at intervals, and the casting blanks are aligned with the rectangular rings in external dimensions.
(3) Vacuum packaging: placing the combined casting blank in a steel box, wherein the internal dimension of the steel box is slightly larger than the external dimension of the casting blank after being combined, vacuumizing and welding the combined casting blank into the steel box, and sealing the steel plate and the welding seam of the steel box, which are manufactured into the steel box, are subjected to flaw detection and leakage detection without leakage, and the thickness of the steel plate and the welding seam are determined to be not leaked after being heated at set temperature and time.
(4) And (3) heating and compounding a casting blank: and (3) placing the welded steel box coated with the casting blank combination into a heating furnace for heating, discharging the steel box from the furnace for cooling, and then disassembling the casting blank.
(5) And (3) casting blank heating and rolling: heating the composite casting blank, discharging the casting blank, descaling, and rough rolling to obtain an intermediate blank; and after the rough rolling stage is finished, rolling in the finish rolling stage, namely finishing the composite welding.
Further, in the step (1), the thickness of the rectangular ring is 4-10mm, and the width is 20-50mm.
Further, in the step (1), the surface finish degree of the processed casting blank and the rectangular ring is 5-9, and the processed casting blank and rectangular ring are smooth and clean after being cleaned and are free of dirt, moisture, dust, oxide and scrap iron impurities.
Further, in the step (3), after the combined casting blank is put into a steel box, the vacuum degree is kept at 10 -2 And welding and sealing the steel under Pa.
Further, in the step (4), the heating temperature is 900-1150 ℃ and the heating time is 3-10h.
Further, in the step (5), the heating temperature of the composite casting blank is 1150-1200 ℃, the heating time is controlled according to 10-25min/cm, and the tapping temperature is 1150-1180 ℃.
Further, in the step (5), the rolling temperature after descaling is 1100-1150 ℃.
Further, in the step (5), the thickness of the intermediate blank is not less than 1.4 times of the thickness of the finished product, and at least the large reduction rate of more than 15% in three continuous passes is ensured.
In the step (5), after the rough rolling stage is completed, the intermediate billet is heated to 850-910 ℃ and is rolled in the finish rolling stage, and the finish rolling temperature is 820-860 ℃.
The invention has the beneficial effects that:
the invention adopts the vacuum diffusion welding process to realize the welding of the high alloy composite billet, does not need expensive vacuum welding equipment, combines the hot working procedures after welding and preheating, saves the purchase and operation cost of the expensive vacuum welding equipment, reduces the production procedures and improves the production efficiency; the rectangular rings made of the same material are designed and used for supporting the periphery of the composite surface of the casting blank, so that the contact area between the casting blanks is greatly reduced, the contact pressure of the casting blanks to the rectangular blanks is improved, the joint contact and the diffusion connection of the interfaces between the casting blanks and the rectangular rings are promoted, the aim of sealing and welding the edges of the casting blanks is fulfilled, the introduction of heterogeneous welding materials is avoided, and the metal yield is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are required to be used in the description of the embodiments or the prior art will be briefly described below, and it will be obvious to those skilled in the art that other drawings can be obtained from these drawings without inventive effort.
Fig. 1 is a schematic structural view of a rectangular ring of embodiment 1.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the technical solution of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present invention without making any inventive effort, shall fall within the scope of the present invention.
Example 1
A high alloy thick plate blank vacuum diffusion composite welding production process specifically comprises the following steps:
(1) Processing a high alloy casting blank and a rectangular ring: the chemical components of the high alloy casting blank and the rectangular ring are the same, the specific smelting components are shown in table 1, and the surface of the casting blank and the surface of the rectangular ring are processed smoothly. The casting blank has the size of 2600mm, the width of 2200mm and the thickness of 300mm, and the outline machining size is 2590 x 2188 x 298 mm; the outer dimension of the rectangular ring is 2590 x 2188mm, the thickness is 6mm, the width is 30mm, and the structural schematic diagram of the rectangular ring is shown in fig. 1. The processed casting blank and rectangular ring have the surface finish of 6 grades, and are smooth and clean after being cleaned, and are free of impurities such as dirt, moisture, dust, oxide, scrap iron and the like.
TABLE 1 billet smelting composition (%)
(2) And (3) casting blank combination: and combining the surfaces of the two cleaned casting blanks in opposite directions, spacing rectangular rings between the casting blanks, and aligning the outline dimensions of the casting blanks and the rectangular rings.
(3) Vacuum packaging: placing the combined casting blank in a steel box, wherein the internal dimension of the steel box is slightly larger than the external dimension of the combined casting blank, and vacuumizing and keeping the vacuum degree at 10 after the combined casting blank is placed in the steel box -2 Welding under Pa, sealing, and manufacturing steel boxThe welding seams of the steel plate and the steel box with the thickness of 12mm are subjected to flaw detection and leakage detection without leakage, and the welding seams cannot be cracked and leaked after heating.
(4) And (3) heating and compounding a casting blank: and (3) placing the steel box containing the combined casting blank into a heating furnace for heating, wherein the heating temperature is 1000 ℃, the heating time is 8 hours, and taking the steel box out of the furnace for cooling after heating to the time, and then disassembling the composite steel blank.
(5) And (3) casting blank heating and rolling: the heating temperature of the composite casting blank is 1180 ℃, and the heating time is 16 hours; the tapping temperature is 1170 ℃; after the casting blank is discharged from the furnace and is descaled, the rolling temperature is 1100 ℃, the thickness of the intermediate blank is 210mm, and at least the continuous three-pass high reduction rate of more than 15% is ensured; after the rough rolling stage is completed, the intermediate blank is heated to 870 ℃ to start the rolling in the finish rolling stage, the finish rolling temperature is 850 ℃, and the thickness of the finished product is 150mm.
Example 2
A high alloy thick plate blank vacuum diffusion composite welding production process specifically comprises the following steps:
(1) Processing a high alloy casting blank and a rectangular ring: the chemical components of the high alloy casting blank and the rectangular ring are the same, the specific smelting components are shown in table 2, and the surface of the casting blank and the surface of the rectangular ring are processed smoothly. The casting blank has the size of 2650mm, the width of 2250mm and the thickness of 320mm, and the external machining size of 2600 x 2200 x 308mm; the rectangular ring also had an outer dimension of 2600 x 2200mm, a thickness of 8mm and a width of 40mm. The processed casting blank and rectangular ring have surface finish of 7 levels, and are clean and smooth after being cleaned, and are free of impurities such as dirt, moisture, dust, oxide, scrap iron and the like.
TABLE 2 billet smelting composition (%)
(2) And (3) casting blank combination: and combining the surfaces of the two cleaned casting blanks in opposite directions, spacing rectangular rings between the casting blanks, and aligning the outline dimensions of the casting blanks and the rectangular rings.
(3) Vacuum packaging: placing the combined casting blank in a steel box, wherein the internal dimension of the steel box is slightly larger than the external dimension of the combined casting blank, and vacuumizing and keeping the vacuum degree at 10 after the combined casting blank is placed in the steel box -2 Welding under Pa is airtight, and a 12mm steel plate and a welding seam of the steel box manufactured by the method need to be subjected to flaw detection and leakage detection, and cannot be cracked and leaked after being heated.
(4) And (3) heating and compounding a casting blank: and placing the steel box containing the combined casting blank into a heating furnace for heating, wherein the heating temperature is 1100 ℃, the heating time is 7h, and taking the steel box heated to the time out of the furnace for cooling and then disassembling the composite steel blank.
(5) And (3) casting blank heating and rolling: the heating temperature of the composite casting blank is 1160 ℃, and the heating time is 17 hours; the tapping temperature is 1160 ℃; after the casting blank is discharged from the furnace and is descaled, the rolling temperature is 1130 ℃, the thickness of the intermediate blank is 230mm, and at least the continuous three-pass high reduction rate of more than 15% is ensured; after the rough rolling stage is completed, the intermediate blank is heated to 900 ℃ to start the rolling in the finish rolling stage, the finish rolling temperature is 850 ℃, and the thickness of the finished product is 160mm.
Although the present invention has been described in detail by way of preferred embodiments with reference to the accompanying drawings, the present invention is not limited thereto. Various equivalent modifications and substitutions may be made in the embodiments of the present invention by those skilled in the art without departing from the spirit and scope of the present invention, and it is intended that all such modifications and substitutions be within the scope of the present invention/be within the scope of the present invention as defined by the appended claims. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (7)
1. The vacuum diffusion composite welding production process for the high-alloy thick plate blank is characterized by comprising the following steps of:
(1) Processing a high alloy casting blank and a rectangular ring: the chemical components of the high alloy casting blank and the rectangular ring are the same, the surfaces of the casting blank and the rectangular ring are processed smoothly, and the appearance processing size is basically equivalent;
(2) And (3) casting blank combination: the surfaces of the two cleaned casting blanks are combined face to face, rectangular rings are arranged between the casting blanks at intervals, and the casting blanks are aligned with the rectangular rings in external dimensions;
(3) Vacuum packaging: placing the combined casting blank in a steel box, wherein the internal dimension of the steel box is slightly larger than the external dimension of the combined casting blank, vacuumizing, welding and sealing the combined casting blank after the combined casting blank is placed in the steel box, and manufacturing a steel plate of the steel box and a welding seam of the steel box, wherein the steel plate and the welding seam are subjected to flaw detection and leakage detection without leakage, and the thickness of the steel plate and the welding seam are determined to be not leaked after the steel plate and the welding seam are heated at set temperature and time;
(4) And (3) heating and compounding a casting blank: placing the welded steel box coated with the casting blank combination into a heating furnace for heating, discharging the steel box from the furnace for cooling after heating to time, and disassembling the casting blank;
(5) And (3) casting blank heating and rolling: heating the composite casting blank, discharging the casting blank, descaling, and rough rolling to obtain an intermediate blank; after the rough rolling stage is completed, carrying out finish rolling stage rolling, namely finishing the composite welding;
in the step (3), after the combined casting blank is put into a steel box, the vacuum degree is kept at 10 -2 Welding and sealing the steel under Pa;
in the step (4), the heating temperature is 900-1150 ℃ and the heating time is 3-10h.
2. The process for producing high alloy thick slab vacuum diffusion composite welding according to claim 1, wherein in the step (1), the rectangular ring has a thickness of 4-10mm and a width of 20-50mm.
3. The process for producing the high-alloy thick slab through vacuum diffusion composite welding according to claim 1, wherein in the step (1), the surface finish of the processed casting blank and the rectangular ring is 5-9 grades, and the processed casting blank and the rectangular ring are clean and smooth after being cleaned and free from dirt, moisture, dust, oxide and scrap iron impurities.
4. The process for producing high alloy thick slab vacuum diffusion composite welding according to claim 1, wherein in the step (5), the heating temperature of the composite casting blank is 1150-1200 ℃, the heating time is controlled according to 10-25min/cm, and the tapping temperature is 1150-1180 ℃.
5. The process for producing high alloy thick slab vacuum diffusion composite welding according to claim 1, wherein in the step (5), the rolling temperature after descaling is 1100-1150 ℃.
6. The process for vacuum diffusion composite welding of thick slabs of high alloy according to claim 1, wherein in said step (5), the thickness of the intermediate billet is not less than 1.4 times the thickness of the finished product, and at least a high reduction ratio of 15% or more in three consecutive passes is ensured.
7. The process for producing a high alloy thick slab by vacuum diffusion composite welding according to claim 1, wherein in the step (5), after the rough rolling stage is completed, the intermediate slab is heated to 850-910 ℃ and is rolled in the finish rolling stage, and the finish rolling temperature is 820-860 ℃.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104923935A (en) * | 2015-06-29 | 2015-09-23 | 山东钢铁股份有限公司 | Method for welding large-thickness slabs having high alloy content |
| CN107175462A (en) * | 2017-05-03 | 2017-09-19 | 河钢股份有限公司邯郸分公司 | A kind of composite plate blanks preparation method for rolling composite plate |
| CN108381027A (en) * | 2018-02-11 | 2018-08-10 | 东北大学 | It is used to prepare the vacuum welding device and preparation method thereof of carbon equivalent high super-thick steel plate |
| CN112139763A (en) * | 2020-09-07 | 2020-12-29 | 山东钢铁集团日照有限公司 | Manufacturing method of high-carbon equivalent high-alloy super-thick steel plate |
| CN112475794A (en) * | 2020-11-10 | 2021-03-12 | 鞍钢股份有限公司 | Process for solving cracking problem of high-strength steel composite plate welded by vacuum electron beam |
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- 2022-02-09 CN CN202210133157.6A patent/CN114523185B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104923935A (en) * | 2015-06-29 | 2015-09-23 | 山东钢铁股份有限公司 | Method for welding large-thickness slabs having high alloy content |
| CN107175462A (en) * | 2017-05-03 | 2017-09-19 | 河钢股份有限公司邯郸分公司 | A kind of composite plate blanks preparation method for rolling composite plate |
| CN108381027A (en) * | 2018-02-11 | 2018-08-10 | 东北大学 | It is used to prepare the vacuum welding device and preparation method thereof of carbon equivalent high super-thick steel plate |
| CN112139763A (en) * | 2020-09-07 | 2020-12-29 | 山东钢铁集团日照有限公司 | Manufacturing method of high-carbon equivalent high-alloy super-thick steel plate |
| CN112475794A (en) * | 2020-11-10 | 2021-03-12 | 鞍钢股份有限公司 | Process for solving cracking problem of high-strength steel composite plate welded by vacuum electron beam |
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