CN116652332A - Full-welding penetration method for circular ring pieces and cylinder bodies of different thicknesses and different materials - Google Patents
Full-welding penetration method for circular ring pieces and cylinder bodies of different thicknesses and different materials Download PDFInfo
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- CN116652332A CN116652332A CN202310902325.8A CN202310902325A CN116652332A CN 116652332 A CN116652332 A CN 116652332A CN 202310902325 A CN202310902325 A CN 202310902325A CN 116652332 A CN116652332 A CN 116652332A
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- 238000003466 welding Methods 0.000 title claims abstract description 312
- 238000000034 method Methods 0.000 title claims abstract description 39
- 239000000463 material Substances 0.000 title claims abstract description 38
- 230000035515 penetration Effects 0.000 title claims abstract description 22
- 238000005260 corrosion Methods 0.000 claims abstract description 20
- 239000000203 mixture Substances 0.000 claims description 10
- 230000000694 effects Effects 0.000 abstract description 4
- 229910052751 metal Inorganic materials 0.000 description 7
- 239000002184 metal Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 229910000851 Alloy steel Inorganic materials 0.000 description 4
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 230000004927 fusion Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 239000002893 slag Substances 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000002787 reinforcement Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 230000035882 stress Effects 0.000 description 1
- 230000008646 thermal stress 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
- B23K9/00—Arc welding or cutting
- B23K9/04—Welding for other purposes than joining, e.g. built-up welding
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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
- B23K9/00—Arc welding or cutting
- B23K9/02—Seam welding; Backing means; Inserts
- B23K9/028—Seam welding; Backing means; Inserts for curved planar seams
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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
- B23K9/00—Arc welding or cutting
- B23K9/23—Arc welding or cutting taking account of the properties of the materials to be welded
- B23K9/232—Arc welding or cutting taking account of the properties of the materials to be welded of different metals
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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
- B23K9/00—Arc welding or cutting
- B23K9/235—Preliminary treatment
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/30—Nuclear fission reactors
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- Plasma & Fusion (AREA)
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- Materials Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
- Arc Welding In General (AREA)
Abstract
The application discloses a full-welding penetration method for circular ring pieces and cylinders with different thicknesses and different materials, and relates to the technical field of welding. The full-welding penetration method for the circular ring pieces with different thicknesses and different materials and the cylinder body comprises the following steps: turning the ring piece, assembling and welding the treated ring piece and the cylinder body to obtain an assembly, assembling and welding the assembly and the anti-corrosion layer, and realizing the effect of full penetration. The full-welding method and the full-welding device realize full-welding between the circular ring pieces with different thicknesses and different materials and the cylinder body by carrying out chamfering turning treatment on the circular ring pieces and adjusting the welding sequence of the welding seam between the circular ring pieces and the cylinder body.
Description
Technical Field
The application relates to the technical field of welding, in particular to a full-welding penetration method for circular ring pieces and cylinders with different thicknesses and different materials.
Background
Full penetration, also called penetration welding, is that two base materials are completely connected through welding, penetration reaches 100%, and deposited metal and plate thickness are the same. And (3) performing welding according to the technical parameters of the technical standard of the metal structural engineering welding technology. Ensuring the metal pool parameters of the welding area to be in place, welding one side and molding two sides. When the steel reinforcement framework welding machine engineering is implemented, welding operation is required according to construction technical requirements, no illegal welding operation such as virtual welding, false welding, sand holes and the like is ensured, gaps of welding areas are completely welded, and welding quality is ensured to reach the standard. The lack of penetration exists in the welding area, so that the strength of the welding area is greatly reduced, a certain fatigue period is easily extended to be a crack defect, the structural member is damaged, and the continuity is more serious.
The steel materials with different materials are fused together by a welding method to form dissimilar steel welding. When dissimilar steel welding is performed, a transition layer having different properties from the structure and the base material must be produced. Because the dissimilar materials have obvious differences in element properties, physical properties (such as melting temperature, heat conductivity coefficient, thermal expansion coefficient, resistivity coefficient and the like), chemical properties and the like, the problems that a welding joint has brittle martensitic structure, uneven chemical components of the welding joint, diffusion of carbon in the welding joint, thermal stress generated in the welding joint (fusion zone) and the like can occur besides the welding problem of a parent body during welding, and the strength of the welding joint is greatly reduced and the like can also occur. Meanwhile, when steel materials with different thicknesses are welded, due to the existence of thickness difference, the welding defects such as stress concentration and unfused are easily caused at the thickness of a high-position steel structure in a welding area, and the welding quality is affected.
In the prior art, when two plates with different thicknesses are welded, the current field distribution of the upper plate and the lower plate is asymmetric, and the distance between the joint surface and the two electrodes with strong heat dissipation is also different, so that the heat dissipation conditions of the two plates are different, the temperature field distribution is also asymmetric, and the nugget is deflected to the thick plate. The diameter of the fusion surface on the joint surface is smaller than that of the nugget, and the strength of the welding spot is reduced. If the welding penetration rate of the thin plate is zero, only plastic adhesion is carried out, and the joint strength is extremely low, so that the welding penetration rate of the thin plate is required to be not less than 10%, the thick piece is required to reach 20-30%, and in order to ensure the structural strength and the necessary welding penetration rate of the thin piece, the nugget offset can be regulated according to different conditions so as to meet the requirements of the structure on surface quality and the like. The principle of adjustment is to increase the heating value of the thin piece, reduce the heat dissipation of the thin piece, and increase the temperature of the joint. The same difficulties as in the spot welding of workpieces of different thickness can occur when spot welding dissimilar metals having different physical properties. When stainless steel is spot-welded with low alloy steel or low carbon steel, the former is poor in heat conductivity and electrical conductivity, and the nugget is deviated toward the inside thereof, so that the penetration of the low alloy steel or low carbon steel is insufficient. When the metal having poor thermal conductivity is thicker than the metal having good thermal conductivity, the deflection of the nugget is more serious. If the metal, which is poor in thermal conductivity, is thinner, the offset is reduced.
Therefore, when the ring member, the cylinder body and the anti-corrosion layer are made of different materials and the thickness difference between the materials is large, a full-penetration welding method is needed to realize full penetration of the welding area, avoid the defects of slag inclusion in the welding area and the like, and ensure the welding quality.
Disclosure of Invention
Aiming at the prior art, the application aims to provide a full welding method for circular ring pieces and cylinder bodies with different thicknesses and different materials. The method realizes full penetration of the circular ring pieces and the cylinder with different thicknesses and different materials by chamfering the circular ring pieces and adjusting the welding sequence of the welding areas between the circular ring pieces and the cylinder.
In order to achieve the above purpose, the application adopts the following technical scheme:
the application provides a full-welding method for circular ring pieces and cylinder bodies with different thicknesses and different materials, which comprises the following steps:
(1) Processing a groove on the inner side of the circular ring piece, and turning the groove to the upper surface and the lower surface of the circular ring piece respectively by taking the groove as a starting point to obtain a first welding surface and a second welding surface; the first welding surface comprises a first groove, a rounding corner and a groove surface connected with the rounding corner, and the second welding surface comprises a second groove and a groove surface connected with the second groove;
(2) Assembling the treated ring piece and the cylinder, and sequentially overlaying a first welding seam, a second welding seam and a third welding seam to obtain an assembly; the first welding seam is a tangent plane of the first welding surface, the second welding seam is an area between the cylinder and the second welding surface, and the third welding seam is an area between the cylinder and the first welding seam.
Preferably, the upper surface of the assembly is also welded with an anti-corrosion layer, comprising the steps of: removing a boss on the upper surface of the assembly, processing a first chamfer connected with the inner surface of the barrel on the upper surface of the barrel in the assembly, forming a second chamfer symmetrical to the first chamfer on the anti-corrosion layer, assembling the treated assembly with the anti-corrosion layer, and sequentially welding a fourth welding seam and a fifth welding seam; the first chamfer and the second chamfer form a fourth welding seam, and the joint of the other end of the anti-corrosion layer and the circular ring piece is a fifth welding seam.
Further preferably, the material of the annular ring piece is Q345R, and the thickness of the annular ring piece is 40-45mm; the material of the cylinder body is 30508, and the thickness is 3-6mm; the material of the anti-corrosion layer is 30508, and the thickness is 5-10mm.
Preferably, in the step (1), the vertical distance between the groove and the bottom surface of the ring member is 4-6mm.
Preferably, the first welding surface comprises a first groove, a rounded corner and a groove surface connected with the rounded corner, and the diameter of the rounded corner is the ratio of the thickness of the circular ring piece to the thickness of the circular ring piece is (0.22-0.25): 1, a step of; the second welding surface comprises a second groove and a groove surface connected with the second groove.
Preferably, in the step (2), the thickness of the first welding seam is 1-2mm.
Preferably, in the step (2), the thickness of the second welding seam is 3-4mm.
Preferably, in the step (2), the third welding seam is divided into 8-9 layers from inside to outside, the thickness of the third welding seam is 6-8mm, and the thickness of each layer from inside to outside is gradually reduced.
Preferably, in the step (2), the surfacing method adopted by the first welding seam is welding rod arc welding, the welding current of the welding rod arc welding is 110-160A, the welding voltage is 24-26V, the welding speed is 10-16 cm/min, the welding temperature is less than or equal to 150 ℃, the welding rod composition is A302, and the diameter phi of the welding rod is 4.0mm.
Preferably, in the step (2), the surfacing method adopted by the second welding seam is welding rod arc welding, the welding current of the welding rod arc welding is 110-160A, the welding voltage is 24-26V, the welding speed is 10-16 cm/min, the welding temperature is less than or equal to 150 ℃, the welding rod composition A302 and the welding rod diameter phi is 4.0mm.
Preferably, in the step (2), the surfacing method adopted by the second welding seam is welding rod arc welding, the welding current of the welding rod arc welding is 110-160A, the welding voltage is 24-26V, the welding speed is 10-16 cm/min, the welding temperature is less than or equal to 150 ℃, the welding rod composition A102 and the welding rod diameter phi is 4.0mm.
The application has the beneficial effects that:
in the prior art, in the welding process of ring pieces, cylinder bodies and anti-corrosion layers with different materials and different thicknesses, the ring pieces are directly subjected to groove treatment, the contact between the ring pieces and the cylinder bodies is an acute angle, and in the welding process, the welding rod cannot completely enter the bottom of a welding line due to the small angle of the bottommost part of the welding rod, so that the welding zone cannot be ensured to be completely welded.
Therefore, the application adopts partition welding and welds the first weld joint on the first welding surface of the ring piece in the welding sequence, can effectively play a transitional role, prevent slag inclusion in a welding area and the occurrence of penetration, then welds the second weld joint after back gouging, can effectively avoid welding deformation, and then carries out layered welding on the third weld joint to realize the full penetration brothers effect, and then carries out the welding of the anti-corrosion layer on the basis. Meanwhile, the application also adopts the rounding treatment for the lower end of the groove, compared with the prior art, the rounding treatment can increase the area of the welding seam, especially the area of the bottom of the welding seam, and ensure that the welding rod can completely enter the welding seam in the welding process, thereby further realizing the effect of full penetration.
Drawings
Fig. 1: schematic partial cross-section of the turned circular ring piece;
fig. 2: the assembly is partially schematic in cross-section;
fig. 3: and (5) carrying out structural schematic drawing after full-penetration welding.
The figure shows: the welding tool comprises a 1-circular ring part, a 2-cylinder body, a 3-anticorrosive layer, a 4-first welding seam, a 5-second welding seam, a 6-third welding seam, a 7-fourth welding seam, an 8-fifth welding seam, a 11-groove, a 12-first groove, a 13-rounded corner and a 14-second groove.
Detailed Description
It should be noted that the following detailed description is illustrative and is intended to provide further explanation of the application. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
As described in the background art, when welding two materials having different thicknesses, particularly when spot welding stainless steel with low alloy steel or low carbon steel, the former has poor heat conductivity and electrical conductivity, and the nugget is deviated to the inside thereof, so that the penetration of the low alloy steel or low carbon steel is insufficient, and thus the effect of full penetration cannot be achieved.
Based on the above, the application provides a full welding method for circular ring pieces and cylinder bodies with different thicknesses and different materials, which comprises the following steps:
(1) Turning a ring piece with the material Q345R and the thickness of 40-45mm, machining a groove on the inner side of the ring piece, wherein the vertical distance between the groove and the bottom surface of the ring piece is 4-6mm, and respectively extending to the upper surface and the lower surface of the ring piece from the groove through turning to form a first welding surface and a second welding surface, wherein the first welding surface comprises a first groove, a rounding corner and a groove surface connected with the rounding corner, the second welding surface comprises a second groove and a groove surface connected with the second groove, and the ratio of the diameter of the rounding corner to the thickness of the ring piece is (0.22-0.25): 1, a step of;
(2) Pairing the annular piece subjected to turning in the step (1) with the cylinder, and sequentially overlaying a first welding seam, a second welding seam and a third welding seam to form an assembly;
the first welding seam is a tangential plane of a first welding surface, the thickness of the first welding seam is 1-2mm, a surfacing method adopted by the first welding seam is welding rod arc welding, the welding current of the welding rod arc welding is 110-160A, the welding voltage is 24-26V, the welding speed is 10-16 cm/min, the welding temperature is less than or equal to 150 ℃, the welding rod composition is A302, and the welding rod diameter phi is 4.0mm;
the second welding seam is a region between the cylinder body and the second welding surface, the thickness of the second welding seam is 3-4mm, the surfacing method adopted by the second welding seam is welding rod arc welding, the welding current of the welding rod arc welding is 110-160A, the welding voltage is 24-26V, the welding speed is 10-16 cm/min, the welding temperature is less than or equal to 150 ℃, the welding rod composition A302 and the welding rod diameter phi 4.0mm;
the third welding seam is a region of the cylinder body and the first welding seam piece, the third welding seam is divided into 8-9 layers from inside to outside, the thickness of the third welding seam is 6-8mm, the thickness of each layer from inside to outside is gradually reduced, the surfacing method adopted by the third welding seam is welding rod arc welding, the welding current of the welding rod arc welding is 110-160A, the welding voltage is 24-26V, the welding speed is 10-16 cm/min, the welding temperature is less than or equal to 150 ℃, the welding rod is A102, and the welding rod diameter phi is 4.0mm;
(3) Removing a boss on the upper surface of the assembly, assembling the assembly with an anti-corrosion layer group made of 30508 and having a thickness of 5-10mm, processing a first chamfer connected with the inner surface of the barrel 2 on the upper surface of the barrel 2 in the assembly, forming a second chamfer symmetrical to the first chamfer on the anti-corrosion layer 3, assembling the treated assembly with the anti-corrosion layer 3, and sequentially welding a fourth welding seam 7 and a fifth welding seam 8; the first chamfer and the second chamfer form a fourth welding seam 7, and the joint of the other end of the anti-corrosion layer and the circular ring piece is a fifth welding seam 8.
In order to enable those skilled in the art to more clearly understand the technical scheme of the present application, the technical scheme of the present application will be described in detail with reference to specific embodiments.
The test materials used in the examples of the present application are all conventional in the art and are commercially available.
Example 1
(1) Turning the ring piece 1 with the material Q345R and the thickness of 40-45mm, machining a groove 11 on the inner side of the ring piece, wherein the vertical distance between the groove 11 and the bottom surface of the ring piece is 4-6mm, turning the groove 11 serving as a starting point to the upper surface and the lower surface of the ring piece 1 respectively to form a first welding surface and a second welding surface, wherein the first welding surface comprises a first groove 12, a rounding 13 and the surface of the groove 11 connected with the rounding, the second welding surface comprises a second groove 14 and the surface of the groove 11 connected with the second groove, and the ratio of the diameter of the rounding 13 to the thickness of the ring piece 1 is (0.22-0.25): 1, a step of;
(2) Pairing the annular piece 1 subjected to turning treatment in the step (1) with a cylinder body 2 which is made of 30508 and has a thickness of 3-6mm, and sequentially overlaying a first welding seam 4, a second welding seam 5 and a third welding seam 6 to form an assembly;
the first welding seam 4 is a tangential plane of a first welding surface, the thickness of the first welding seam 4 is 1-2mm, a surfacing method adopted by the first welding seam 4 is welding rod arc welding, the welding current of the welding rod arc welding is 110-160A, the welding voltage is 24-26V, the welding speed is 10-16 cm/min, the welding temperature is less than or equal to 150 ℃, the welding rod composition is A302, and the welding rod diameter phi is 4.0mm;
the second welding seam 5 is a region between the cylinder 2 and the second welding surface, the thickness of the second welding seam 5 is 3-4mm, the surfacing method adopted by the second welding seam 5 is welding rod arc welding, the welding current of the welding rod arc welding is 110-160A, the welding voltage is 24-26V, the welding speed is 10-16 cm/min, the welding temperature is less than or equal to 150 ℃, the welding rod composition A302 and the welding rod diameter phi 4.0mm;
the third welding seam 6 is a region between the cylinder 2 and the first welding seam 4, the third welding seam 6 is divided into 8-9 layers from inside to outside, the thickness of the third welding seam 6 is 6-8mm, the thickness of each layer from inside to outside is gradually reduced, the surfacing method adopted by the third welding seam 6 is welding rod arc welding, the welding current of the welding rod arc welding is 110-160A, the welding voltage is 24-26V, the welding speed is 10-16 cm/min, the welding temperature is less than or equal to 150 ℃, the welding rod is A102, and the welding rod diameter phi is 4.0mm;
(3) Removing a boss on the upper surface of the assembly, chamfering the boss, assembling the processed assembly with the anti-corrosion layer 3, and welding a fourth welding line 7 and a fifth welding line 8;
the chamfering treatment is to process a first chamfer connected with the inner surface of the cylinder body on the upper surface of the cylinder body, and set up a second chamfer symmetrical with the first chamfer on the anti-corrosion layer, the first chamfer and the second chamfer form a fourth welding seam, and the joint of the other end of the anti-corrosion layer and the circular ring piece is a fifth welding seam.
The welded structure is longitudinally cut, and the phenomenon of incomplete welding of the welding line can be seen through a sectional view.
The above description is only of the preferred embodiments of the present application and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (10)
1. The full-welding method for the circular ring pieces and the cylinder body with different thicknesses and different materials is characterized by comprising the following steps:
(1) Processing a groove on the inner side of the circular ring piece, and turning the groove to the upper surface and the lower surface of the circular ring piece respectively by taking the groove as a starting point to obtain a first welding surface and a second welding surface; the first welding surface comprises a first groove, a rounding corner and a groove surface connected with the rounding corner, and the second welding surface comprises a second groove and a groove surface connected with the second groove;
(2) Assembling the treated ring piece and the cylinder, and sequentially overlaying a first welding seam, a second welding seam and a third welding seam to obtain an assembly; the first welding seam is a tangent plane of the first welding surface, the second welding seam is an area between the cylinder and the second welding surface, and the third welding seam is an area between the cylinder and the first welding seam.
2. The method for completely welding the annular ring member and the cylinder body with different thicknesses and different materials according to claim 1, wherein in the step (1), the vertical distance between the groove and the bottom surface of the annular ring member is 4-6mm.
3. The method for full penetration of a circular ring member and a cylinder of different thickness and different materials according to claim 1, wherein in the step (1), the ratio of the diameter of the rounded corner to the thickness of the circular ring member is (0.22-0.25): 1.
4. the method for fully welding a circular ring member and a cylinder body of different thicknesses and different materials according to claim 1, wherein in the step (2), the thickness of the first welding line is 1-2mm, the thickness of the second welding line is 3-4mm, and the thickness of the third welding line is 6-8mm.
5. The method for fully welding a circular ring member and a cylinder body with different thicknesses and different materials according to claim 1, wherein in the step (2), the third welding seam is divided into 8-9 layers from inside to outside, and the thickness of each layer is gradually reduced from inside to outside.
6. The method for fully welding the annular piece and the cylinder body with different thicknesses and different materials according to claim 1, wherein the surfacing method adopted by the first welding seam is welding rod arc welding, the welding current of the welding rod arc welding is 110-160A, the welding voltage is 24-26V, the welding speed is 10-16 cm/min, the welding temperature is less than or equal to 150 ℃, the welding rod composition is A302, and the welding rod diameter phi is 4.0mm.
7. The full-penetration method for the circular ring pieces and the cylinder body with different thicknesses and different materials according to claim 1, wherein the surfacing method adopted by the second welding seam is welding rod arc welding, the welding current of the welding rod arc welding is 110-160A, the welding voltage is 24-26V, the welding speed is 10-16 cm/min, the welding temperature is less than or equal to 150 ℃, the welding rod composition A302 and the welding rod diameter phi 4.0mm.
8. The full-penetration method for the circular ring pieces and the cylinder body with different thicknesses and different materials according to claim 1, wherein the surfacing method adopted by the third welding seam is welding rod arc welding, the welding current of the welding rod arc welding is 110-160A, the welding voltage is 24-26V, the welding speed is 10-16 cm/min, the welding temperature is less than or equal to 150 ℃, the welding rod composition A102 and the welding rod diameter phi 4.0mm.
9. The full-penetration method of the circular ring pieces and the cylinder body with different thicknesses and different materials, which is characterized in that the method comprises the following steps that a boss on the upper surface of the combined piece is removed, a first chamfer connected with the inner surface of the cylinder body is processed on the upper surface of the cylinder body in the combined piece, a second chamfer symmetrical with the first chamfer is formed on the anti-corrosion layer, the processed combined piece and the anti-corrosion layer are assembled, and a fourth welding seam and a fifth welding seam are welded in sequence; the first chamfer and the second chamfer form a fourth welding seam, and the joint of the other end of the anti-corrosion layer and the circular ring piece is a fifth welding seam.
10. The method for completely welding the annular member and the cylinder body with different thicknesses and different materials according to claim 9, wherein the annular member is made of Q345R and has a thickness of 40-45mm; the material of the cylinder body is 30508, and the thickness is 3-6mm; the material of the anti-corrosion layer is 30508, and the thickness is 5-10mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310902325.8A CN116652332A (en) | 2023-07-21 | 2023-07-21 | Full-welding penetration method for circular ring pieces and cylinder bodies of different thicknesses and different materials |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310902325.8A CN116652332A (en) | 2023-07-21 | 2023-07-21 | Full-welding penetration method for circular ring pieces and cylinder bodies of different thicknesses and different materials |
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| Publication Number | Publication Date |
|---|---|
| CN116652332A true CN116652332A (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310902325.8A Pending CN116652332A (en) | 2023-07-21 | 2023-07-21 | Full-welding penetration method for circular ring pieces and cylinder bodies of different thicknesses and different materials |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116652332A (en) |
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- 2023-07-21 CN CN202310902325.8A patent/CN116652332A/en active Pending
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