CN1390650A

CN1390650A - Method for treating coated layer on surface of metal material and making pattern

Info

Publication number: CN1390650A
Application number: CN 02113765
Authority: CN
Inventors: 钟烈侯
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-05-21
Filing date: 2002-05-21
Publication date: 2003-01-15

Abstract

A process for coating on the surface of metal material and then preparing pattern on it includes such steps as immersing metal material in solution of H2SO4, water flushing, drying, coating acetone, benzene and n-propyl acetate, blowing surface by air compressor, baking, electrostatic spraying of polyester epoxy powder, baking, making pattern with the mixture of epoxy resin powder, butyl acetate and pigment by rolling or manually, baking and spraying BJS varnish. Its advantages are low cost, high resistance to chemical corrosion and oxidation, and clear 3D pattern.

Description

The preparation method of processing of metal material surface coating and floral designs

One, technical field

The present invention relates to a kind of metal material surface and handle and decoration technique, especially the preparation method of processing of metal material surface coating and floral designs.

Two, background technology

Along with economic development, living standard improves, and people live to self, the requirement of production field is also more and more higher, as metal material at interior decoration, or the employed metal material of household electrical appliances, and metal material that automobile case uses all proposes new demand.But because the relatively more active easily oxidation of metal, its production technology is again only just through after the preliminary treatment, carrying out electrostatic spraying curing forms, as automobile case is the electrostatic painting that adopts, appliance shell adopts electrostatic spraying to solidify and forms, what metal decorative material adopted is to spray paint or plastic-blasting, through this kind explained hereafter cost of manufacture height, the equipment complexity, but product is easily aging, easy to change, oil smoke easily is stained with in not resistance to chemical attack, and paint film (high temperature, freezing, environmental pollution) easily peeling, variable color, loss of gloss, easily efflorescence that comes off under certain environment.In the patent disclosure of number of patent application 99104639.0 " a kind of preparation method of decorative pattern of aluminium alloy plate ", exist and can only handle at aluminium sheet, technology controlling and process difficulty, quality be cannot say for sure card, the high weak point of cost.

Three, summary of the invention

It is simple to the purpose of this invention is to provide a kind of preparation method, and suitable multiple metal material surface is handled, acid and alkali-resistance, anti-oxidant, the clear patterns third dimension is strong, the metal material surface coating that cost is low is handled and the preparation method of floral designs.

The objective of the invention is to be achieved through the following technical solutions, its preparation method may further comprise the steps:

A. with the H of metal material with 3%-5% ₂SO ₄Solution soaks 30-50 after second, uses clear water

Flushing;

B. after the air dry, with the acetone of 5%-10%, the benzene of 30%-40%, positive third fat of the acetate of 15%-20%, after manually (or machinery) sequencing spread upon metal material surface, the air compressor machine with P8 pressure brushed the surface again;

C. again metal material is placed on the controllable silicon FAR INFRARED HEATING and carries out 150 ℃ of-180 ℃ of 40-60 minute time constant-temperatures bakings in being provided with;

D. use 40%-60% polyester epoxide powder coating, adopt electrostatic spraying to metal material surface;

E. put into controllable silicon FAR INFRARED HEATING equipment again and carry out 150 ℃-180 ℃ timings in 40-60 minute

The constant temperature baking;

F. mix thoroughly with 20%-30% epoxy resin powder, 15%-30% ethyl acetate, mix of 20%-30% industrial coating look female, adopt the roller coating or the method for making by hand that metal material surface is made floral designs;

G. again metal material is put into controllable silicon FAR INFRARED HEATING equipment again and carried out 150 ℃ of-180 ℃ of 40-60 minute time constant-temperatures bakings;

H. adopt the air compressor machine spraying, be sprayed onto on the metal material surface with 20%-30%BJS varnish;

I. at last metal material is put into controllable silicon FAR INFRARED HEATING equipment and carried out 150 ℃ of-180 ℃ of 40-60 minute time constant-temperatures bakings.

The present invention adopts the H of 3%-5% ₂SO ₄Solution carries out the surface treatment in early stage to metal material; Successively smear the acetone of 5%-10% then, the benzene of 30%-40%, positive third fat of the acetate of 15%-20% make metal material surface increase adhesive force to metal material surface; Use electrostatic spraying 40%-60% polyester epoxide powder coating again, make metal material surface adhesive force strengthen,, play bridge contact effect for the innner and outer layer has better filter course.

The present invention compared with prior art has following outstanding advantage and remarkable result:

1, acidproof, alkaline-resisting, resistance to chemical attack, oily dirt free cigarette dirt, non-oxidizability is strong.

2, no peeling loss of gloss phenomenon after placing 4h under-50 ℃-100 ℃ the environment respectively, and can keep intact.

3, paint film is at 50kg/cm ²Under the effect of power, paint film does not have and comes off.

4, the clear patterns third dimension is strong, the soft light of color and luster, and nondiscolouring, colour-fast.

5, the technology cost of manufacture is cheap, environmental recyclable utilization again.

Four, the specific embodiment

Embodiment 1:

1, the thickness after will choosing is 20 semihard or fully hard copper; 2, with copper with 3% H ₂SO ₄Solution soaks 30-40 second, soaks good back and cleans with clear water; 3, after the air dry with 5% acetone, after 30% benzene, positive third fat of 15% acetate are smeared (artificial or machinery) surface, brush the surface with the air engine of P8 pressure; 4, do after, carry out 180 ℃ of heating of 40 minutes with controllable silicon FAR INFRARED HEATING equipment; 5, the polyester epoxide powder coating that carries out electrostatic spraying 40% of the copper surface after will heating adopts controllable silicon FAR INFRARED HEATING equipment to carry out 175 ℃ of heating of 40 minutes after spray is good once more; 6, mix thoroughly with 25% epoxy resin powder, 15% ethyl acetate, mix of 30% industrial coating look female, make and make floral designs by roller coating or the manual surface of carrying out; 7, carry out 180 ℃ of heating of 60 minutes with controllable silicon FAR INFRARED HEATING equipment; 8, after the heating,, carry out 150 ℃ of heating of 45 minutes with controllable silicon FAR INFRARED HEATING equipment again after spray is good, promptly get the copper decorative panel finished product that is printed on floral designs with air compressor spraying 20%BJS varnish.

Embodiment 2:

1, aluminium content is more than 80%, and thickness is 20-80 silk semihard or fully hard aluminium alloy plate; 2, with aluminium alloy with 3.5% H ₂SO ₄Solution soaks 30-50 second, soaks good back and washes with clear water; 3, smear (artificial or machinery) surface with 10% acetone, 40% benzene, 20% positive third fat of acetate after the air dry after, brush the surface with the air compressor machine of P8 pressure; 4, do the back and carry out 180 ℃ of heating in 40 minutes with controllable silicon FAR INFRARED HEATING equipment; 5,, adopt controllable silicon FAR INFRARED HEATING equipment to carry out 175 ℃ of heating in 50 minutes once more after spray is good to the polyester epoxide powder coating of the spraying of the aluminum alloy surface after the heating 60%; 6,,, carry out 150 ℃ of heating in 60 minutes with firing equipment by roller coating or after making floral designs by hand with 30% epoxy resin powder, 30% ethyl acetate, 20% industrial coating look mother.7, to the spraying of the aluminum alloy surface after heating 30%BJS varnish, through after 180 ℃ of heating in 40 minutes, promptly get the aluminium alloy decoration plate finished product that is printed on floral designs again.

Embodiment 3:

1, selects the semihard of 40 of thickness or fully hard iron for use; 2, iron is placed on 3% H ₂SO4 solution soaks 30-40 second, soaks good back and washes with clear water; 3, after the air dry with 8% acetone, after 35% benzene, positive third fat of 17% acetate are smeared (artificial or machinery) surface, brush the surface with the air engine of P8 pressure; 4, do the back and carry out 175 ℃ of heating in 50 minutes with controllable silicon FAR INFRARED HEATING equipment; 5,, adopt controllable silicon FAR INFRARED HEATING equipment to carry out 150 ℃ of heating in 40 minutes once more after spray is good to the polyester epoxide powder coating of the spraying of the iron surface after the heating 50%; 6, with 20% epoxy resin powder, 25% ethyl acetate, 30% industrial coating look mother make by hand carry out that the surface makes and the making of floral designs after, carry out 150 ℃ with controllable silicon FAR INFRARED HEATING equipment and heated in 40 minutes; 7, with spray coating mechanical to iron surface spraying 25%BJS varnish, carry out 180 ℃ with controllable silicon FAR INFRARED HEATING equipment then and heated in 60 minutes, get final product to such an extent that be printed on the iron decorative panel finished product of floral designs.

Claims

1, the preparation method of a kind of metal material surface coating processing and floral designs is characterized in that preparation method may further comprise the steps:

A. with the H of metal material with 3%-5% ₂SO ₄Solution soaks 30-50 after second, washes with clear water;

The constant temperature baking;

I. at last metal material is put into controllable silicon FAR INFRARED HEATING equipment and carried out 150 ℃-180 ℃ 40

Time constant-temperature baking in-60 minutes.