CN111001989A - Surface treatment process for stainless steel seamless welding integrated forming - Google Patents
Surface treatment process for stainless steel seamless welding integrated forming Download PDFInfo
- Publication number
- CN111001989A CN111001989A CN201911342251.7A CN201911342251A CN111001989A CN 111001989 A CN111001989 A CN 111001989A CN 201911342251 A CN201911342251 A CN 201911342251A CN 111001989 A CN111001989 A CN 111001989A
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- stainless steel
- welding
- steel material
- surface treatment
- treatment process
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/02—Processes for applying liquids or other fluent materials performed by spraying
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/002—Pretreatement
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D3/00—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials
- B05D3/02—Pretreatment of surfaces to which liquids or other fluent materials are to be applied; After-treatment of applied coatings, e.g. intermediate treating of an applied coating preparatory to subsequent applications of liquids or other fluent materials by baking
- B05D3/0254—After-treatment
- B05D3/0272—After-treatment with ovens
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
- B05D7/14—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies
- B05D7/16—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to metal, e.g. car bodies using synthetic lacquers or varnishes
Abstract
The invention discloses a surface treatment process for stainless steel seamless welding integrated forming, which comprises the steps of material selection, cutting, welding, polishing, cleaning and spraying, wherein a seamless welding stainless steel material is adopted and is cooled while being welded at high temperature, so that the deformation of the stainless steel material is reduced, the welding position is firmly connected, seamless integral welding forming is realized, the deformation of the welding position is small, polishing is easy, the labor intensity of operators in the polishing and welding process is reduced, and the benefit is improved.
Description
Technical Field
The invention relates to a surface treatment process for stainless steel seamless welding and integral forming.
Background
In the prior art, stainless steel deforms around a stainless steel welding seam at high temperature in a welding process, so that the surface of a stainless steel product is uneven, and the attractiveness, the decorativeness and the structural accuracy are influenced.
Due to welding deformation, the stainless steel product has ultrahigh reject ratio, high grinding processing difficulty, higher dust treatment cost in the grinding process and higher cost for social environment treatment. If the problem is solved, the labor intensity of operators in the polishing and welding process is reduced to a certain extent, and good social value and enterprise economic benefit are brought.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a surface treatment process for stainless steel seamless welding and integral forming.
The technical scheme adopted by the invention for solving the technical problems is as follows: a surface treatment process for stainless steel seamless welding integrated molding comprises the following process steps:
s1, selecting materials, namely selecting stainless steel materials, wherein the stainless steel materials are rectangular stainless steel tubes, and the wall thickness of the selected materials is 1.5mm +/-0.1 mm;
s2, cutting, namely cutting the stainless steel material by wire cutting, wherein the wire cutting enables the stainless steel material to form oblique notches which are mutually corresponding and form an angle of 45 degrees, the tolerance value is +/-0.1 degrees, and the dimensional tolerance of each size chain of the cut material is +/-0.03 mm;
s3, welding, namely continuously and seamlessly welding the oblique notches of the stainless steel materials after the cutting is finished, wherein the welding temperature is 1570 ℃, the welding seam positions of the stainless steel materials at the welding temperature of 1570 ℃ are simultaneously cooled, and the cooling liquid is ethylene glycol type diluent, so that the deformation size of the stainless steel is reduced to +/-0.1 mm, and the welding positions are formed at the welding positions of the stainless steel materials;
s4, grinding and polishing the welding position, namely a rough grinding process and an accurate grinding process;
s5, cleaning, namely, using cleaning agent ethanol to carry out degreasing passivation treatment on the surface of the stainless steel product after secondary polishing and wire drawing, and spraying cleaning solution on the surface of the stainless steel product to carry out cleaning and degreasing;
and S6, spraying, namely spraying metal fluorocarbon paint on the surface of the cleaned stainless steel material, and drying in an oven with the constant temperature of 235 ℃ for 20min after uniform spraying.
Wherein: the rough grinding process comprises the steps of firstly grinding the welding position once by using 60-mesh abrasive paper, and then grinding the welding position twice by using 180-mesh abrasive paper.
Wherein: the fine grinding process is to polish the welding position three times by using 320-mesh sand paper, so that the welding position is flat and is in a wire drawing shape.
Wherein: after the first 235 ℃ constant temperature drying for 20min, 600-mesh sand paper is used for wiping and dedusting the metal paint surface, then the electrostatic spray gun is continuously used for carrying out secondary coating processing on the surface of the metal workpiece, and then the second constant temperature drying for 20min at 235 ℃ is continuously carried out.
Wherein: the temperature after cooling was 280 ℃ with a cooling time of 3 min.
The invention has the beneficial effects that: the seamless welding stainless steel material is adopted and cooled while being welded at high temperature, so that the deformation of the stainless steel material is reduced, the welding position is firmly connected and formed by seamless integral welding, the deformation of the welding position is small, the polishing is easy, the labor intensity of operators in the polishing and welding process is reduced, and the benefit is improved.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of a diagonal slit structure made of stainless steel material according to the present invention;
FIG. 2 is a schematic structural view of the present invention;
fig. 3 is a schematic view of the structure of the clamp of the present invention.
Detailed Description
Referring to fig. 1, 2 and 3, the surface treatment process for stainless steel seamless welding integral forming comprises the following process steps:
s1: selecting materials
Selecting a stainless steel material 1, wherein the stainless steel material 1 is selected to be a stainless steel rectangular pipe with the model number of 100mm x 50mm, the selected material wall thickness of 1.5mm and the dimensional tolerance range of +/-0.1 mm; the stainless steel rectangular tube is 304 stainless steel.
S2: cutting material
Cutting the stainless steel material 1 by linear cutting, wherein the stainless steel material 1 forms 45-degree oblique notches which correspond to each other by the linear cutting, the tolerance value is +/-0.1 degrees, and the dimensional tolerance of each dimension chain of the cut material is +/-0.03 mm. The position of the opening seam is obliquely cut by 45 degrees multiplied by 1.0mm chamfer angles at the position of the linear cutting cut by using a clamp, the accuracy of the subsequent welding process is ensured by the operation of cutting the materials by the linear cutting metal, and the welding depth of the chamfer angles of 45 degrees multiplied by 1.0mm is enabled to reach the technical standard of 1.5mm +/-0.1 mm.
S3: welding of
The oblique notch of the stainless steel material 1 which is completely cut is continuously and seamlessly welded by using a special stainless steel welding machine 'WSE-350', and a low-temperature water cooling device is synchronously configured for cooling a welding gun by adopting a current 150A and the welding machine in the seamless welding process.
The cooling device synchronously cools the position of a welding seam of the stainless steel material 1 at the welding temperature of 1570 ℃, the cooling liquid is glycol type diluent, the cooling mode is liquid cooling, the deformation size of the stainless steel is reduced to +/-0.1 mm, and the welding position 2 is formed at the welding position of the stainless steel material.
The adopted welding equipment is beacon fire 'WSE-350', the welding path is that welding is carried out along the straight line of the connecting seam between the stainless steel materials 1, the welding temperature is 1570 ℃, and the cooling temperature, the cooling time and the method are as follows: cooling the ethylene glycol type diluent liquid at 280 deg.C for 3 min.
The clamp comprises a bracket 81 and a mobile platform 82 connected with the bracket, wherein the bracket 81 comprises a bottom frame 811 arranged at the lower end, a supporting column 812 vertical to the bottom frame, and a wire connecting block 813 arranged at the upper end of the supporting column, wherein the screw connecting block 813 is in threaded connection with the screw 83, the tail end of the screw 83 is movably connected with the movable platform 82 through a bearing, the relative distance between the moving platform 82 and the wire connecting block 813 is adjusted through the rotation of the screw 83 to clamp or loosen the stainless steel material 1, and a cooling device for spraying cooling liquid is arranged on the moving platform 82, wherein the cooling device is specifically a spray head 84, cooling liquid is sprayed to cool the welding position in the welding process, so as to avoid the welding position from generating large deformation due to long-time high temperature, the moving platform 82 is provided with a through hole 821, the through hole 821 guides the cooled coolant to avoid accumulating more coolant on the movable platform 82.
S4: polishing
Polishing welding position 2, be the coarse grinding process and the accurate grinding process respectively, wherein the coarse grinding process is for at first using 60 mesh abrasive paper to polish once welding position 2, then use 180 mesh abrasive paper to polish twice welding position 2, wherein the accurate grinding process is for using 320 mesh abrasive paper to polish three times welding position 2, make welding position 2 level and present the filiform form that draws, the polishing equipment of using is that eastern one becomes S1N-FF-120 100 polishing machine, adopt and polish by coarse to fine abrasive paper many times, make welding position surface flatness is higher, thereby avoid the unsmooth surface and influence the aesthetic property and the decorative effect of stainless steel shaping product.
S5: cleaning of
Using ethanol C2H6Carrying out oil removal and passivation treatment on the surface of the stainless steel product subjected to secondary polishing and wire drawing by using an O cleaning agent, wherein the cleaning agent is ethanol C2H6And O, spraying the cleaning solution to the surface of the stainless steel product through a spraying device to clean and remove oil.
S6: spraying of paint
And spraying metal fluorocarbon paint on the surface of the cleaned stainless steel material, and drying in an oven with the constant temperature of 235 ℃ for 20min after uniform spraying.
After the first 235 ℃ constant temperature drying for 20min, 600-mesh sand paper is used for wiping and dedusting the metal paint surface, then the electrostatic spray gun is continuously used for carrying out secondary coating processing on the surface of the metal workpiece, and then the second constant temperature drying for 20min at 235 ℃ is continuously carried out.
The stainless steel treatment process is suitable for metal products such as stainless steel doors and windows, guardrails, stairs, furniture and the like.
After the stainless steel treatment process is finished, the test results are as follows:
in the present invention: the seamless welding stainless steel material 1 is adopted and cooled while being welded at high temperature, so that the deformation of the stainless steel material is reduced, the welding position is firmly connected and formed by seamless integral welding, the deformation of the welding position 2 is small, the polishing is easy, and the adhesive force of the stainless steel metal paint surface is excellent.
Claims (5)
1. A surface treatment process for stainless steel seamless welding integrated molding is characterized in that: the method comprises the following process steps:
s1, selecting materials, namely selecting a stainless steel material (1), wherein the stainless steel material (1) is a stainless steel rectangular pipe, and the wall thickness of the selected material is 1.5mm +/-0.1 mm;
s2, cutting, namely cutting the stainless steel material (1) by linear cutting, wherein the linear cutting enables the stainless steel material (1) to form oblique notches which are mutually corresponding and form an angle of 45 degrees, the tolerance value is +/-0.1 degrees, and the dimensional tolerance of each dimension chain of the cut material is +/-0.03 mm;
s3, welding, namely continuously and seamlessly welding the oblique notches of the stainless steel material (1) which is subjected to material cutting, wherein the welding temperature is 1570 ℃, the welding seam position of the stainless steel material (1) at the welding temperature of 1570 ℃ is synchronously cooled, the cooling liquid is ethylene glycol type diluent, the deformation size of the stainless steel is reduced to +/-0.1 mm, and the welding position (2) is formed at the welding position of the stainless steel material;
s4, grinding and polishing the welding position (2), namely a rough grinding process and a fine grinding process;
s5, cleaning, namely, using cleaning agent ethanol to carry out degreasing passivation treatment on the surface of the stainless steel product after secondary polishing and wire drawing, and spraying cleaning solution on the surface of the stainless steel product to carry out cleaning and degreasing;
and S6, spraying, namely spraying metal fluorocarbon paint on the surface of the cleaned stainless steel material, and drying in an oven with the constant temperature of 235 ℃ for 20min after uniform spraying.
2. The surface treatment process for the stainless steel seamless welding integrated molding according to claim 1, characterized in that: the rough grinding process comprises the steps of firstly grinding the welding position (2) once by using 60-mesh sand paper, and then grinding the welding position (2) twice by using 180-mesh sand paper.
3. The surface treatment process for the stainless steel seamless welding integrated molding according to claim 1, characterized in that: and the fine grinding process comprises the step of grinding the welding position (2) three times by using 320-mesh sand paper to enable the welding position (2) to be flat and in a wire drawing shape.
4. The surface treatment process for the stainless steel seamless welding integrated molding according to claim 1, characterized in that: after the first 235 ℃ constant temperature drying for 20min, 600-mesh sand paper is used for wiping and dedusting the metal paint surface, then the electrostatic spray gun is continuously used for carrying out secondary coating processing on the surface of the metal workpiece, and then the second constant temperature drying for 20min at 235 ℃ is continuously carried out.
5. The surface treatment process for the stainless steel seamless welding integrated molding according to claim 1, characterized in that: the temperature after cooling was 280 ℃ with a cooling time of 3 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201911342251.7A CN111001989A (en) | 2019-12-21 | 2019-12-21 | Surface treatment process for stainless steel seamless welding integrated forming |
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| CN201911342251.7A CN111001989A (en) | 2019-12-21 | 2019-12-21 | Surface treatment process for stainless steel seamless welding integrated forming |
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| CN111001989A true CN111001989A (en) | 2020-04-14 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112025225A (en) * | 2020-09-07 | 2020-12-04 | 九江海天设备制造有限公司 | Welding process method and tool for aluminum alloy low-temperature container |
| CN112247491A (en) * | 2020-10-23 | 2021-01-22 | 苏州航菱微精密组件有限公司 | Chip packaging detection equipment rack processing and welding method |
| CN112846675A (en) * | 2020-12-29 | 2021-05-28 | 天门天晟新型材料科技有限公司 | Quick forming method for technological guardrail |
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| CN112247491A (en) * | 2020-10-23 | 2021-01-22 | 苏州航菱微精密组件有限公司 | Chip packaging detection equipment rack processing and welding method |
| CN112846675A (en) * | 2020-12-29 | 2021-05-28 | 天门天晟新型材料科技有限公司 | Quick forming method for technological guardrail |
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Application publication date: 20200414 |