CN114850798A - Assembled welding part and machining method thereof - Google Patents
Assembled welding part and machining method thereof Download PDFInfo
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- CN114850798A CN114850798A CN202210553719.2A CN202210553719A CN114850798A CN 114850798 A CN114850798 A CN 114850798A CN 202210553719 A CN202210553719 A CN 202210553719A CN 114850798 A CN114850798 A CN 114850798A
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- groove
- inverted trapezoidal
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- 238000003466 welding Methods 0.000 title claims abstract description 87
- 238000000034 method Methods 0.000 title claims abstract description 19
- 238000003754 machining Methods 0.000 title claims description 11
- 238000005520 cutting process Methods 0.000 claims abstract description 19
- 239000000463 material Substances 0.000 claims abstract description 12
- 238000003698 laser cutting Methods 0.000 claims abstract description 9
- 238000003672 processing method Methods 0.000 claims abstract description 4
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 claims description 6
- 238000005498 polishing Methods 0.000 claims description 6
- 238000005507 spraying Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000007590 electrostatic spraying Methods 0.000 claims description 3
- 239000012535 impurity Substances 0.000 claims description 3
- 239000004033 plastic Substances 0.000 claims description 3
- 229920003023 plastic Polymers 0.000 claims description 3
- 238000002360 preparation method Methods 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 2
- 239000000047 product Substances 0.000 description 12
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000011265 semifinished product Substances 0.000 description 1
- 238000005493 welding type Methods 0.000 description 1
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Classifications
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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
-
- 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
- B23K33/00—Specially-profiled edge portions of workpieces for making soldering or welding connections; Filling the seams formed thereby
-
- 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)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention discloses a processing method of an assembled welding part, which is characterized by comprising the following steps: the method specifically comprises the following steps: s1, cutting the pipe: a technician processes the material into a first 45-degree oblique angle pipe, a second 45-degree oblique angle pipe and a third right angle pipe through a laser cutting machine; s2, processing the pipe: cutting an inverted trapezoidal groove in the middle of the first bevel edge of the pipe by a laser cutting machine, cutting a rectangular groove I on the same side of the groove, cutting an inverted trapezoidal bulge in the middle of the second bevel edge of the pipe, cutting a rectangular groove II on the same side of the bulge, and arranging rectangular bulges on the two vertical sides of the right-angle pipe III respectively; the inverted trapezoidal groove and the inverted trapezoidal protrusion can be embedded, the first rectangular groove and the second rectangular groove can be respectively embedded with the rectangular protrusion, and the problems of poor welding and unattractive welding cannot be solved through assembly, welding and the like.
Description
Technical Field
The invention relates to the technical field of pipe machining, in particular to an assembled welding part and a machining method thereof.
Background
The market pipes are poor in consistency (the tolerance of the external dimension is +/-0.5 mm), so that the problems that welding seams are large and welding is not good or welding is not attractive and the like exist in splicing after the pipes are cut into semi-finished products by a laser cutting machine, and meanwhile, the original structure of the product is positioned by installing rivets after punching, so that the process is complicated, time and labor are wasted, and the cost is wasted; therefore, the precision and the stability of the finished product can be improved by improving the assembling form and the assembling process.
Disclosure of Invention
In order to solve the problems mentioned in the background art, the invention discloses a processing method of an assembled welding part, which specifically comprises the following steps:
s1, cutting the pipe: a technician processes the material into a first 45-degree oblique angle pipe, a second 45-degree oblique angle pipe and a third right angle pipe through a laser cutting machine;
s2, processing the pipe: cutting an inverted trapezoidal groove in the middle of the first bevel edge of the pipe by a laser cutting machine, cutting a rectangular groove I on the same side of the groove, cutting an inverted trapezoidal bulge in the middle of the second bevel edge of the pipe, cutting a rectangular groove II on the same side of the bulge, and arranging rectangular bulges on the two vertical sides of the right-angle pipe III respectively; the inverted trapezoidal groove and the inverted trapezoidal protrusion can be embedded, and the rectangular groove I and the rectangular groove II can be respectively embedded with the rectangular protrusion;
s3, welding preparation: the inner and outer wall surfaces of the first pipe, the second pipe and the third pipe which are processed are polished, all sharp corners are polished, and splashing during welding can be eliminated; rust impurities on the surfaces of the inner wall and the outer wall of the pipe;
s4, assembling and welding the pipes: assembling and welding the pipe, and specifically comprising the following steps:
s41, assembling the pipe: the inverted trapezoidal grooves and the inverted trapezoidal protrusions of the first pipe and the second pipe are embedded to form transverse plane locking, and the rectangular grooves I and the rectangular grooves II are respectively embedded to two rectangular protrusions of the third pipe to form longitudinal plane locking; forming mutually vertical tee pieces and completing combination and positioning in conclusion;
s42, spot welding: welding each inflection point of the assembled three-way part, further preventing movement and ensuring the strength of the product;
s43, welding: performing segmented interval skip welding on the connecting edges of the three-way part until all the connecting edges are welded for one time; the skip welding sequence is that the inner connecting edge and the outer connecting edge are welded at the bottom of intersection, the inner connecting edge is an edge connected with the common intersection point of the first pipe, the second pipe and the third pipe, and the outer connecting edge is an edge not connected with the common intersection point of the first pipe, the second pipe and the third pipe;
s5, polishing and grinding; polishing and grinding the welding position;
s6, spraying plastics: after welding, electrostatic spraying is adopted to spray the product so that the product is completely wrapped by the coating, thereby preventing rust.
Furthermore, the whole material of the assembled welding part is a galvanized pipe material.
Further, step S4, assembling and welding the pipe: the concrete steps can also be
S41, assembling the pipe: the inverted trapezoidal grooves and the inverted trapezoidal bulges of the first pipe and the second pipe are embedded to form transverse plane locking
S42, spot welding: each inflection point of the assembled two-way component is welded, so that the movement is further prevented, and the strength of the product is ensured;
s43, welding: performing segmented interval skip welding on the connecting edges of the two-way piece until all the connecting edges are welded once;
s44, assembling the pipe: the rectangular groove of the two-way piece is embedded with the rectangular bulge of the third pipe to form a three-way piece locked on the longitudinal plane;
s45, spot welding: the inflection points of the assembled three-way piece are welded, so that the movement is further prevented, and the strength of the product is ensured;
s46, welding: and performing sectional interval skip welding on the three-phase connecting edges of the two-way part and the pipe until all the connecting edges are welded once and all the connecting edges are welded once.
Further, the skip welding sequence of step S43 is to weld the inner right-angled connecting edge of the two-way component, weld the outer right-angled connecting edge of the two-way component, and weld the connecting oblique edge of the side of the two-way component without the rectangular groove.
Further, in the step S45, the skip welding sequence includes welding any inner right-angle connecting edge formed by the two-way member and the pipe three, and then welding an outer right-angle connecting edge which is not connected with the connecting edge; the two-way piece and the three other two connecting edges of the pipe are welded according to the same steps.
Further, the error of the rectangular groove I, the rectangular groove II and the rectangular protrusion is controlled within 1.5mm, and the rectangular protrusion is at least embedded into the rectangular groove I and the rectangular groove II by 5 mm.
Further, in the step S2, at least one inverted trapezoidal groove, at least one inverted trapezoidal protrusion, a first rectangular groove and at least one rectangular groove are provided;
the invention also discloses an assembled welding piece, which is characterized in that: the pipe comprises a first 45-degree oblique angle pipe, a second 45-degree oblique angle pipe and a third right angle pipe, wherein a reversed trapezoidal groove is formed in the middle of the oblique angle side of the first pipe, a first rectangular groove is formed in the same side of the groove, a reversed trapezoidal bulge is formed in the middle of the oblique angle side of the second pipe, a second rectangular groove is formed in the same side of the bulge, and rectangular bulges are respectively formed in the two vertical sides of the third right angle pipe; the inverted trapezoidal groove and the inverted trapezoidal protrusion can be embedded to form transverse plane locking; the first rectangular groove and the second rectangular groove are respectively embedded with the two rectangular bulges of the third pipe to form longitudinal plane locking, and finally, the three-way piece which is vertical to each other is formed.
Furthermore, a slot is adhered on the surface of the first pipe, and a convex block is adhered at the same position of the second pipe; when the first pipe and the second pipe are embedded to form transverse plane locking, the slot is just embedded with the lug.
Advantageous effects
According to the assembling and welding type iron fitting, the oblique-angle pipes are cut into combined styles through the laser cutting machine, are embedded and spliced, are tightly matched to remove gaps, and are convenient for subsequent welding due to the fact that the inserting blocks and the inserting grooves are inserted and positioned; the overall dimension precision of the final product is ensured, the structural stability of the product is improved, and the problems of poor welding and unattractive welding are solved.
Drawings
Fig. 1 is a flow chart of a method for machining an assembled weldment according to the present invention.
FIG. 2 is a schematic view of the structure of the pipe of the present invention;
FIG. 3 is a schematic structural view of a second pipe material according to the present invention;
FIG. 4 is a schematic view of a three-structure of the pipe material according to the present invention;
FIG. 5 is a schematic diagram of the first pipe and the second pipe according to the present invention;
FIG. 6 is a schematic diagram of a tee structure according to the present invention;
reference numerals:
1. the pipe comprises a first pipe, a second pipe, a third pipe, a fourth pipe, a fifth pipe, a sixth pipe, 101, an inverted trapezoidal groove, 102, a first rectangular groove, 103, a slot, 201, an inverted trapezoidal protrusion, 202, a second rectangular groove, 203, a convex block, 301 and a rectangular protrusion.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-6, the invention discloses a processing method S1 of an assembled welding part, which comprises the following steps: a technician processes the material into a first 45-degree oblique-angle pipe, a second 45-degree oblique-angle pipe and a third right-angle pipe through a laser cutting machine, wherein the first 1 is a first pipe, the second 2 is a second pipe and the third 3 is a third pipe;
s2, processing the pipe: cutting an inverted trapezoidal groove 101 in the middle of the bevel edge of the first pipe 1, cutting a rectangular groove 102 on the same side of the groove, cutting an inverted trapezoidal protrusion 201 in the middle of the bevel edge of the second pipe 2, cutting a rectangular groove 202 on the same side of the protrusion, and arranging rectangular protrusions 301 on the two vertical sides of the right-angle pipe 3; the inverted trapezoidal groove 101 and the inverted trapezoidal protrusion 201 can be embedded, and the rectangular groove I102 and the rectangular groove II 202 can be respectively embedded with the rectangular protrusion 301;
s3, welding preparation: the inner and outer wall surfaces of the first pipe 1, the second pipe 2 and the third pipe 3 are polished, all sharp corners are polished, and splashing during welding can be eliminated; rust impurities on the surfaces of the inner wall and the outer wall of the pipe;
s4, assembling and welding the pipes: assembling and welding the pipe, and specifically comprising the following steps:
s41, assembling the pipe: the inverted trapezoidal grooves 101 and the inverted trapezoidal protrusions 201 of the first pipe 1 and the second pipe 2 are embedded to form transverse plane locking, and the first rectangular groove 102 and the second rectangular groove 202 are respectively embedded to two rectangular protrusions 301 of the third pipe 3 to form longitudinal plane locking; forming three-way pieces which are vertical to each other in a summary manner, and completing combination and positioning;
s42, spot welding: welding each inflection point of the assembled three-way part, further preventing movement and ensuring the strength of the product;
s43, welding: performing segmented interval skip welding on the connecting edges of the three-way part until all the connecting edges are welded for one time; the skip welding sequence is that the inner connecting edge and the outer connecting edge are welded according to the intersection bottom, the inner connecting edge is an edge connected with the common intersection point of the first pipe 1, the second pipe 2 and the third pipe 3, and the outer connecting edge is an edge not connected with the common intersection point of the first pipe 1, the second pipe 2 and the third pipe 3;
s5, polishing and grinding; polishing and grinding the welding position;
s6, spraying plastics: and after welding, spraying the product by adopting electrostatic spraying to completely wrap the coating so as to prevent rust.
Furthermore, the whole material of the assembled welding part is a galvanized pipe material.
Further, step S4, assembling and welding the pipe: the concrete steps can also be
S41, assembling the pipe: embedding the inverted trapezoidal grooves 101 and the inverted trapezoidal protrusions 201 of the first pipe 1 and the second pipe 2 to form transverse plane locking;
s42, spot welding: each inflection point of the assembled two-way component is welded, so that the movement is further prevented, and the strength of the product is ensured;
s43, welding: performing segmented interval skip welding on the connecting edges of the two-way part until all the connecting edges are welded for one time;
s44, assembling the pipe: the rectangular groove of the two-way piece is embedded with the rectangular protrusion 301 of the third pipe to form a three-way piece with a locked longitudinal plane;
s45, spot welding: the inflection points of the assembled three-way piece are welded, so that the movement is further prevented, and the strength of the product is ensured;
s46, welding: and carrying out sectional interval skip welding on the three-phase connecting edges of the two-way piece and the pipe until all the connecting edges are welded once and all the connecting edges are welded once.
Further, the skip welding sequence of step S43 is to weld the inner right-angled connecting edge of the two-way component, weld the outer right-angled connecting edge of the two-way component, and weld the connecting oblique edge of the side of the two-way component without the rectangular groove.
Further, in the step S45, the skip welding sequence includes welding any inner right-angled connecting edge formed by the two-way member and the three pipe 3, and then welding an outer right-angled connecting edge which is not connected with the connecting edge; the two-way piece and the other two adjoining sides of the tube three 3 are welded according to the same procedure.
Further, the error of the rectangular groove I102 and the rectangular groove II 202 and the error of the rectangular protrusion 301 are controlled within 1.5mm, and the rectangular protrusion 301 is at least embedded into the rectangular groove I102 and the rectangular groove II 202 by 5 mm.
Further, in step S2, the number of the inverted trapezoidal grooves 101, the inverted trapezoidal protrusions 201, the rectangular grooves one 102, and the rectangular grooves two 202 is at least one;
in this embodiment, the pipe comprises a first 45-degree oblique angle pipe 1, a second 45-degree oblique angle pipe 2 and a third right angle pipe 3, wherein a reversed trapezoidal groove 101 is formed in the middle of the oblique angle side of the first pipe 1, a first rectangular groove 102 is formed in the same side of the groove, the first rectangular groove 102 is formed in the opposite side of the triangular side of the first pipe 1 and in the middle of the same, a reversed trapezoidal protrusion 201 is formed in the middle of the oblique angle side of the second pipe 2, a second rectangular groove 202 is formed in the same side of the protrusion and in the middle of the opposite side of the triangular side of the second pipe 2, the second rectangular groove 202 is formed in the opposite side of the oblique angle side of the second pipe 2 and in the middle of the same, a rectangular protrusion 301 is formed in the middle of one side of the third right angle pipe 3, and a rectangular protrusion 301 is formed in the middle of one vertical side of the same; the inverted trapezoidal groove 101 and the inverted trapezoidal protrusion 201 can be embedded to form transverse plane locking; the first rectangular groove 102 and the second rectangular groove 202 are respectively embedded with the two rectangular protrusions 301 of the third pipe to form longitudinal plane locking, and finally, mutually vertical three-way pieces are formed; the surface of the first pipe 1 is adhered with a slot 103, the same position of the second pipe 2 is adhered with a lug 203, and the groove of the slot 103 can just receive the lug 203; when the first pipe 1 and the second pipe 5 are embedded to form transverse plane locking, the slot 103 is just embedded with the lug 203; after the spot welding is completed, the socket 103 and the bump 203 may be removed.
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 (9)
1. A processing method of an assembled welding part is characterized in that: the method specifically comprises the following steps:
s1, cutting the pipe: a technician processes the material into a first 45-degree oblique angle pipe, a second 45-degree oblique angle pipe and a third right angle pipe through a laser cutting machine;
s2, processing the pipe: cutting an inverted trapezoidal groove in the middle of the first bevel edge of the pipe by a laser cutting machine, cutting a rectangular groove I on the same side of the groove, cutting an inverted trapezoidal bulge in the middle of the second bevel edge of the pipe, cutting a rectangular groove II on the same side of the bulge, and arranging rectangular bulges on the two vertical sides of the right-angle pipe III respectively; the inverted trapezoidal groove and the inverted trapezoidal protrusion can be embedded, and the rectangular groove I and the rectangular groove II can be respectively embedded with the rectangular protrusion;
s3, welding preparation: the inner wall surface and the outer wall surface of the first pipe, the second pipe and the third pipe which are processed are polished, all sharp corners are polished, and splashing during welding can be eliminated; rust impurities on the surfaces of the inner wall and the outer wall of the pipe;
s4, assembling and welding the pipes: assembling and welding the pipe, and specifically comprising the following steps:
s41, assembling the pipe: the inverted trapezoidal grooves and the inverted trapezoidal protrusions of the first pipe and the second pipe are embedded to form transverse plane locking, and the rectangular grooves I and the rectangular grooves II are respectively embedded to two rectangular protrusions of the third pipe to form longitudinal plane locking; forming three-way pieces which are vertical to each other in a summary manner, and completing combination and positioning;
s42, spot welding: welding each inflection point of the assembled three-way part, further preventing movement and ensuring the strength of the product;
s43, welding: performing segmented interval skip welding on the connecting edges of the three-way part until all the connecting edges are welded for one time; the skip welding sequence is that the inner connecting edge and the outer connecting edge are welded at the bottom of intersection, the inner connecting edge is an edge connected with the common intersection point of the first pipe, the second pipe and the third pipe, and the outer connecting edge is an edge not connected with the common intersection point of the first pipe, the second pipe and the third pipe;
s5, polishing and grinding; polishing and grinding the welding position;
s6, spraying plastics: after welding, electrostatic spraying is adopted to spray the product so that the product is completely wrapped by the coating, thereby preventing rust.
2. The method of machining an assembled weldment according to claim 1, wherein: the whole material of the assembled welding part is a galvanized pipe material.
3. The method of machining an assembled weldment according to claim 1, wherein: step S4, assembling and welding the pipe: the concrete steps can also be
S41, assembling the pipe: the inverted trapezoidal grooves and the inverted trapezoidal bulges of the first pipe and the second pipe are embedded to form transverse plane locking
S42, spot welding: each inflection point of the assembled two-way component is welded, so that the movement is further prevented, and the strength of the product is ensured;
s43, welding: performing segmented interval skip welding on the connecting edges of the two-way part until all the connecting edges are welded for one time;
s44, assembling the pipe: the rectangular groove of the two-way piece is embedded with the rectangular protrusion of the third pipe to form a three-way piece with a locked longitudinal plane;
s45, spot welding: the inflection points of the assembled three-way piece are welded, so that the movement is further prevented, and the strength of the product is ensured;
s46, welding: and carrying out sectional interval skip welding on the three-phase connecting edges of the two-way piece and the pipe until all the connecting edges are welded once and all the connecting edges are welded once.
4. The method of machining an assembled weldment according to claim 3, wherein: and the skip welding sequence of the step S43 is to weld the connecting edges of the inner right angles of the two-way pieces, weld the connecting edges of the outer right angles of the two-way pieces and weld the connecting bevel edges of the sides of the two-way pieces without the rectangular grooves.
5. The method of machining an assembled weldment according to claim 3, wherein: in the step S45, welding any inner right-angle connecting edge formed by the two-way part and the pipe III in a skip welding sequence, and then welding an outer right-angle connecting edge which is not connected with the connecting edge; the two-way piece and the three other two connecting edges of the pipe are welded according to the same steps.
6. The method of machining an assembled weldment according to claim 1, wherein: the error of the first rectangular groove and the second rectangular groove and the error of the rectangular protrusion are controlled within 1.5mm, and the rectangular protrusion is at least embedded into the first rectangular groove and the second rectangular groove by 5 mm.
7. The method of machining an assembled weldment according to claim 1, wherein: in the step S2, the number of the inverted trapezoidal grooves, the inverted trapezoidal protrusions, the first rectangular grooves and the second rectangular grooves is at least one.
8. An assembled weldment, characterized in that: the pipe comprises a first 45-degree oblique angle pipe, a second 45-degree oblique angle pipe and a third right angle pipe, wherein a reversed trapezoidal groove is formed in the middle of the oblique angle side of the first pipe, a first rectangular groove is formed in the same side of the groove, a reversed trapezoidal bulge is formed in the middle of the oblique angle side of the second pipe, a second rectangular groove is formed in the same side of the bulge, and rectangular bulges are respectively formed in the two vertical sides of the third right angle pipe; the inverted trapezoidal groove and the inverted trapezoidal protrusion can be embedded to form transverse plane locking; the first rectangular groove and the second rectangular groove are respectively embedded with the two rectangular bulges of the third pipe to form longitudinal plane locking, and finally, the three-way piece which is vertical to each other is formed.
9. The assembly weldment of claim 8, wherein: the surface of the first pipe is adhered with a slot, and the same position of the second pipe is adhered with a lug; when the first pipe and the second pipe are embedded to form transverse plane locking, the slot is just embedded with the lug.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210553719.2A CN114850798A (en) | 2022-05-19 | 2022-05-19 | Assembled welding part and machining method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210553719.2A CN114850798A (en) | 2022-05-19 | 2022-05-19 | Assembled welding part and machining method thereof |
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| CN114850798A true CN114850798A (en) | 2022-08-05 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210553719.2A Pending CN114850798A (en) | 2022-05-19 | 2022-05-19 | Assembled welding part and machining method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116060893A (en) * | 2023-03-31 | 2023-05-05 | 江阴市龙腾管件有限公司 | Forming method of high-strength alloy steel large-caliber three-way pipe fitting |
-
2022
- 2022-05-19 CN CN202210553719.2A patent/CN114850798A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116060893A (en) * | 2023-03-31 | 2023-05-05 | 江阴市龙腾管件有限公司 | Forming method of high-strength alloy steel large-caliber three-way pipe fitting |
| CN116060893B (en) * | 2023-03-31 | 2023-06-06 | 江阴市龙腾管件有限公司 | Forming method of high-strength alloy steel large-caliber three-way pipe fitting |
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