CN108393246A - A kind of technique that stamping forming metal blank is surface-treated - Google Patents
A kind of technique that stamping forming metal blank is surface-treated Download PDFInfo
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- CN108393246A CN108393246A CN201810325022.3A CN201810325022A CN108393246A CN 108393246 A CN108393246 A CN 108393246A CN 201810325022 A CN201810325022 A CN 201810325022A CN 108393246 A CN108393246 A CN 108393246A
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Classifications
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- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
- C25D11/00—Electrolytic coating by surface reaction, i.e. forming conversion layers
- C25D11/02—Anodisation
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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
-
- 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
-
- 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
-
- 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
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
-
- 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
-
- 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
- B05D7/24—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 for applying particular liquids or other fluent materials
-
- 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
- B05D7/50—Multilayers
- B05D7/56—Three layers or more
- B05D7/57—Three layers or more the last layer being a clear coat
- B05D7/576—Three layers or more the last layer being a clear coat each layer being cured, at least partially, separately
-
- 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
- B05D2350/00—Pretreatment of the substrate
- B05D2350/30—Change of the surface
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Wood Science & Technology (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Securing Of Glass Panes Or The Like (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a kind of techniques being surface-treated to stamping forming metal blank, include the following steps：Leveling pretreatment is carried out to the plate of pre-manufactured product, then carries out punch forming；Punch forming includes that non punching assembles again for punching press assembling and component punch forming again for whole punch forming, component punch forming, and non punching assembling is divided into connector assembling and welding assembly, and the connector or soldered of wherein non punching assembling are to hide design；Surface cleaning processing；Chemical oxidation treatment；Baking spraying；Electrolytic oxidation process；Spray paint；Polished surface etc., the present invention is combined by the intermediate treatment technique of chemical oxidation pre-treatment and electrolytic oxidation, the treatment effect for substantially increasing metal blank surface meets the requirements such as permanent holding gloss, the corrosion resistant of the metal door and window cabinet of outdoors building or indoor confined space；Further combined with the Rational Simplification structure of metal door and window cabinet, it is ensured that its blank treatment technique can be applicable in, and obtain higher treatment effect.
Description
Technical field
The present invention relates to a kind of punch forming blank surface treatment process, more particularly to stamping forming metal door and window cabinet table
Surface treatment technique.
Background technology
Existing metal door and window cabinet surface treatment generally carries out simple spray painting processing using metal former material, after a period of time
It just will produce dull or even get rusty, paint face peeling, blistering, depainting, grey, and glossiness is greatly reduced.
It also improves to some extent in the prior art, such as：CN201410455726.4《A kind of safety box surface treatment method》, including
Following steps：Pre-treatment, plastic-blasting pretreatment, electrostatic spraying, hot setting and polishing, waxing, the invention using 1) poly-putty base by
Layer thickeies, and makes its adequately dry elimination foaming phenomena, then carry out fine grinding solution workpiece with fine sandpaper to have sags and crests and pick blade seratch
Mark, it is ensured that surface is smooth；2) 4 grades of filterings are used, with microthermal adsorption drier air are carried out in afterbody overanxious, and are being sprayed
It is preceding that air sky is first allowed to blow no less than 30min, the air in purging line and aqueous vapor；3) it is first sprinkled water and is mopped floor using 2h before plastic-spraying, protected
Card site environment does not have to carry out plastic-spraying again when dust；4) using spraying process alternate in length and breadth, horizontal spray is carried out, erects to spray to intersect and make
Industry, it is ensured that spray gun walks spray piece that rifle is uniform, and workpiece is not show-through, do not lose powder, molding powder attachment it is uniform；5) polishing wheel of pure wool is used
Wax is coordinated to carry out sanding and polishing；To reach the standard and effect of high brightness.
CN201510873164.X《A kind of surface treatment method of antitheft door》, after antitheft door semi-finished product assembly and adjustment,
Antitheft door surface is cleared up, is polished, is surface-treated with scouring pad, then one phosphating solution of the six directions is used to remove surface oil
Ash；Antitheft door after oil removing is sprayed into bottom powder, drying chamber is sent into and toasts 205~215 DEG C, 18~22min of heat preservation comes out of the stove, with scouring pad table
Surface treatment keeps adhesive force stronger；High intensity woodgrained paper brush is transferred into glue, door body surface is covered in, after chromatography is dried in the shade, into high temperature
Drying chamber, 145~155 DEG C of baking temperature, 18~22min of heat preservation come out of the stove, are surface-treated three times with scouring pad again after removing woodgrained paper,
Then electrostatic painting sprays high brightness Lacquer finish polishes, then into drying chamber, 125~135 DEG C of baking temperature keeps the temperature 14~16min and goes out
Stove carries out finished product assembling.The invention improves the aesthetic feeling and feel of antitheft door, and product surface is made to have pure solid wood lines, and line
It clears clear and there is solid wood texture, the class and grade of antitheft door are improved, to Improving The Quality of Products.
However, for needing to be positioned over outdoors building or indoor confined space, higher often is required to rotproofness.
Invention content
For prior art defect, the purpose of the present invention is to provide one kind being surface-treated stamping forming blank
Technique, meet the particular/special requirement of metal door and window cabinet, more beautiful more durable more corrosion resistant.Specific technical solution is as follows：
A kind of technique being surface-treated to stamping forming blank, includes the following steps：
1) leveling pretreatment is carried out to the plate of pre-manufactured product, then carries out punch forming；Punch forming includes whole rushes
Non punching assembles again for punching press assembling and component punch forming again for molded, component punch forming, and non punching assembling is divided into connector
The connector or soldered of assembling and welding assembly, wherein non punching assembling are to hide design；
2) to the processing of stamping forming blank surface fine sand, surface cleaning processing；
3) blank surface, using chemical oxidation treatment：Natrium carbonicum calcinatum 3%, anhydrous sodium chromate 1.5%.Work temperature
90~100 DEG C of degree, 3~5 minutes processing times；
4) low-temperature bake is carried out to the blank, baking temperature is at 40 DEG C -60 DEG C, and baking time was at 1-3 minutes；
5) baking temperature is kept, by paint spraying apparatus, then spray-applied primer sprays a finishing coat；
6) electrolytic oxidation process is used to the blank surface for spraying a finishing coat, with sodium aluminate-sodium phosphate system or silicic acid
Sodium-sodium phosphate system is electrolyte, and the parameter of plasma electrolysis oxidation processing is 1~2.5A/dm2 of current density, voltage 400V
~550V, duty ratio 15%~20%, 400~800Hz of frequency, solution temperature is less than 5 DEG C when reaction, is supplied using constant current
Electricity, 45~50min of processing time；
7) finishing coat is sprayed again, low-temperature bake is carried out after spraying, toasts 4-6 hours at a temperature of 40-60 DEG C, then again
It is dried under room temperature；
8) it polishes, the silicon carbide paper that different meshes are respectively adopted carries out classification polishing, then using envelope glaze grinding and polishing table
Face.
Further, the cleaning treatment includes using acetone and deionized water washed samples surface.
Further, the basecoat paint three times, first time priming paint are seal coat, roasting at 140 DEG C -190 DEG C after spray
Baking in case, baking time are 15-20 minutes, and room temperature cooling is carried out after baking；Second of priming paint be PE paint, after spray 190 DEG C-
Baking in 240 DEG C of oven, baking time are 25-40 minutes, and room temperature cooling is carried out after baking；Third is used all over priming paint from dry
Priming paint, airdrying time is more than 60 minutes under room temperature.
Further, the priming paint is pure polyester resin powder thermosetting.
Further, diluent or high boiling solvent is added in the priming paint and finishing coat.
Further, electrolyte ratio is：14~16g/L of sodium metaaluminate, 0.3~3g/L of sodium hydroxide, calgon 2
~4g/L.
Further, the silicon carbide paper of the different meshes is respectively 800 mesh, 1200 mesh, 1500 mesh.
Further, the control of the painting thickness of the priming paint and finishing coat is in 15-30mm.
Further, it is equipped with rush-resisting material at the hiding design of the connector or soldered of non punching assembling.
Further, the stamping forming blank is metal safe, and the metal safe includes frame, door leaf, supporting plate disk, top
Lid and bottom seat, has four-sided openings in the middle part of the door leaf, and the plate at the opening position is by punching press flanging at upper and lower two W
Shape structure, and on the inside of the door leaf；The supporting plate is mutually fastened by two supporting plate disks and is formed, and the supporting plate disk is pros
Shape, the front and back of the supporting plate disk are two folded edges, and the left side and the right of the supporting plate disk do not set flanging, the support
There is among plate disc at least one bending ribs, the bending ribs by make the plate bending one of the supporting plate disk at
Type has buckling groove on the bending ribs.
Advantages of the present invention and the advantageous effect of generation are：
The technique is to adapt to the particular/special requirement of metal door and window cabinet, can be with by chemical oxidation pre-treatment and low temperature prebake conditions
Adhesive force is submitted significantly；And glossiness, durability and the rotproofness of lacquer painting can be greatly improved by painting process, and into one
Step further increases above-mentioned effect by electrolytic oxidation.The gloss, smooth of lacquer painting can be kept for a long time, adapted to outdoor, closed
Environment.
Specific implementation mode
The present invention will be described in detail below, is a kind of preferred embodiment in numerous embodiments of the present invention.
A kind of technique being surface-treated to stamping forming blank, includes the following steps：
Embodiment 1：
1) leveling pretreatment is carried out to the plate of pre-manufactured product, then carries out punch forming；Punch forming includes whole rushes
Non punching assembles again for punching press assembling and component punch forming again for molded, component punch forming, and non punching assembling is divided into connector
The connector or soldered of assembling and welding assembly, wherein non punching assembling are to hide design；
It, can be whole stamping forming using whole punch forming such as metal door and window cabinet；
To cannot whole punch forming, punching press assembling is first carried out again to each component punch forming, as flanging, occlusion, folding,
The punching presses assembling mode such as discount, ratcheting；
To cannot whole punch forming, and be unable to punching press assembling using connector assembling and welding assembly, such as connector
Rivet, screw in assembling etc.；When connector is assembled with welding assembly, junction and connector, as rivet, screw, weld seam are adopted
With hiding design, i.e. rivet, screw, weld seam is in the hiding position of product, and appearance can't see, wherein rush-resisting material can be equipped with.
2) to the processing of stamping forming blank surface fine sand, surface cleaning processing；
3) blank surface, using chemical oxidation treatment：Natrium carbonicum calcinatum 3%, anhydrous sodium chromate 1.5%.Work temperature
90~100 DEG C of degree, 3~5 minutes processing times；
4) low-temperature bake is carried out to the blank, baking temperature is at 40 DEG C -60 DEG C, and baking time was at 1-3 minutes；
5) baking temperature is kept, by paint spraying apparatus, then spray-applied primer sprays a finishing coat；
6) electrolytic oxidation process is used to the blank surface for spraying a finishing coat, with sodium aluminate-sodium phosphate system or silicic acid
Sodium-sodium phosphate system is electrolyte, and the parameter of plasma electrolysis oxidation processing is 1~2.5A/dm2 of current density, voltage 400V
~550V, duty ratio 15%~20%, 400~800Hz of frequency, solution temperature is less than 5 DEG C when reaction, is supplied using constant current
Electricity, 45~50min of processing time；
7) finishing coat is sprayed again, low-temperature bake is carried out after spraying, toasts 4-6 hours at a temperature of 40-60 DEG C, then again
It is dried under room temperature；
8) it polishes, the silicon carbide paper that different meshes are respectively adopted carries out classification polishing, then using envelope glaze grinding and polishing table
Face.
Further, the cleaning treatment includes using acetone and deionized water washed samples surface.
Further, the basecoat paint three times, first time priming paint are seal coat, roasting at 140 DEG C -190 DEG C after spray
Baking in case, baking time are 15-20 minutes, and room temperature cooling is carried out after baking；Second of priming paint be PE paint, after spray 190 DEG C-
Baking in 240 DEG C of oven, baking time are 25-40 minutes, and room temperature cooling is carried out after baking；Third is used all over priming paint from dry
Priming paint, airdrying time is more than 60 minutes under room temperature.
Further, the priming paint is pure polyester resin powder thermosetting.
Further, diluent or high boiling solvent is added in the priming paint and finishing coat.
Further, electrolyte ratio is：14~16g/L of sodium metaaluminate, 0.3~3g/L of sodium hydroxide, calgon 2
~4g/L.
Further, the silicon carbide paper of the different meshes is respectively 800 mesh, 1200 mesh, 1500 mesh.
Further, the control of the painting thickness of the priming paint and finishing coat is in 15-30mm.
Embodiment 2：
Stamping forming blank is metal safe (Theft-proof cabinet, safety cabinet), and the metal safe (Theft-proof cabinet, safety cabinet) includes side
There are four-sided openings, the plate at the opening position to pass through punching for frame, door leaf, supporting plate disk, head cover and pedestal, the door leaf middle part
Backfin side is located at upper and lower two W-shaped structures on the inside of the door leaf；The supporting plate is mutually fastened by two supporting plate disks and is formed,
The supporting plate disk is square, and the front and back of the supporting plate disk are two folded edges, the left side and the right side of the supporting plate disk
Side does not set flanging, has at least one bending ribs among the supporting plate disk, the bending ribs is by making the supporting plate
The plate bending of disk is integrally formed, and has buckling groove on the bending ribs.
The intermediate treatment technique of chemical oxidation pre-treatment and electrolytic oxidation combines, and substantially increases the processing effect of blank surface
Fruit meets the requirements such as permanent holding gloss, the corrosion resistant of metal door and window cabinet (Theft-proof cabinet, safety cabinet)；Further combined with metal door and window
The Rational Simplification structure of cabinet (Theft-proof cabinet, safety cabinet), it is ensured that its blank treatment technique can be applicable in, and obtain higher place
Manage effect.
The present invention is exemplarily described above, it is clear that present invention specific implementation is not subject to the restrictions described above,
As long as using the various improvement of inventive concept and technical scheme of the present invention progress, or not improved directly apply to other fields
It closes, within protection scope of the present invention.
Claims (9)
1. a kind of technique being surface-treated to stamping forming metal blank, includes the following steps：
1) leveling pretreatment is carried out to the plate of pre-manufactured product, then carries out punch forming；Punch forming includes whole strikes out
Non punching assembles again for punching press assembling and component punch forming again for type, component punch forming, and non punching assembling is divided into connector assembling
And welding assembly, the connector or soldered of wherein non punching assembling are to hide design；
2) to the processing of stamping forming blank surface fine sand, surface cleaning processing；
3) blank surface, using chemical oxidation treatment：Natrium carbonicum calcinatum 3%, anhydrous sodium chromate 1.5%.Operating temperature 90
~100 DEG C, 3~5 minutes processing times；
4) low-temperature bake is carried out to the blank, baking temperature is at 40 DEG C -60 DEG C, and baking time was at 1-3 minutes；
6) baking temperature is kept, by paint spraying apparatus, then spray-applied primer sprays a finishing coat；
7) electrolytic oxidation process is used to the blank surface for spraying a finishing coat, with sodium aluminate-sodium phosphate system or sodium metasilicate-phosphorus
Sour sodium system be electrolyte, plasma electrolysis oxidation processing parameter be 1~2.5A/dm2 of current density, voltage 400V~
550V, duty ratio 15%~20%, 400~800Hz of frequency, solution temperature is less than 5 DEG C when reaction, is powered using constant current,
45~50min of processing time；
8) finishing coat is sprayed again, low-temperature bake is carried out after spraying, toasts 4-6 hours at a temperature of 40-60 DEG C, then room temperature again
Under dried；
9) it polishes, the silicon carbide paper that different meshes are respectively adopted carries out classification polishing, then using envelope glaze grinding and polishing surface.
2. the technique being surface-treated as described in claim 1 to stamping forming metal blank, it is characterised in that：It is described
Cleaning treatment includes using acetone and deionized water washed samples surface.
3. the technique being surface-treated as described in claim 1 to stamping forming metal blank, it is characterised in that：It is described
Basecoat paint three times, first time priming paint are seal coat, are toasted in 140 DEG C -190 DEG C of oven after spray, baking time 15-
20 minutes, room temperature cooling is carried out after baking；Second of priming paint paints for PE, is toasted in 190 DEG C -240 DEG C of oven after spray, toasts
Time is 25-40 minutes, and room temperature cooling is carried out after baking；Third uses air drying primer all over priming paint, and airdrying time is more than under room temperature
60 minutes.
4. the technique being surface-treated as described in claim 1 to stamping forming metal blank, it is characterised in that：It is described
Priming paint is pure polyester resin powder thermosetting.
5. the technique being surface-treated as described in claim 1 to stamping forming metal blank, it is characterised in that：It is described
Diluent or high boiling solvent are added in priming paint and finishing coat.
6. the technique being surface-treated as described in claim 1 to stamping forming metal blank, it is characterised in that：Electrolysis
Liquid matches：14~16g/L of sodium metaaluminate, 0.3~3g/L of sodium hydroxide, 2~4g/L of calgon.
7. the technique being surface-treated as described in claim 1 to stamping forming metal blank, it is characterised in that：It is described
The silicon carbide paper of different meshes is respectively 800 mesh, 1200 mesh, 1500 mesh.
8. the technique being surface-treated as described in claim 1 to stamping forming metal blank, it is characterised in that：It is described
The painting thickness of priming paint and finishing coat is controlled in 15-30mm.
9. the technique being surface-treated as described in claim 1 to stamping forming metal blank, it is characterised in that：Non- punching
It presses and is equipped with rush-resisting material at the hiding design of the connector or soldered of assembling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810325022.3A CN108393246A (en) | 2018-04-12 | 2018-04-12 | A kind of technique that stamping forming metal blank is surface-treated |
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| CN201810325022.3A CN108393246A (en) | 2018-04-12 | 2018-04-12 | A kind of technique that stamping forming metal blank is surface-treated |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110616450A (en) * | 2019-09-06 | 2019-12-27 | 中国电子科技集团公司第五十四研究所 | Surface protection method for aluminum alloy glued joint antenna reflecting surface panel |
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| CN110616450A (en) * | 2019-09-06 | 2019-12-27 | 中国电子科技集团公司第五十四研究所 | Surface protection method for aluminum alloy glued joint antenna reflecting surface panel |
| CN110616450B (en) * | 2019-09-06 | 2021-06-08 | 中国电子科技集团公司第五十四研究所 | Surface protection method for aluminum alloy glued joint antenna reflecting surface panel |
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