CN102896082A - Coating process - Google Patents
Coating process Download PDFInfo
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- CN102896082A CN102896082A CN2012104044743A CN201210404474A CN102896082A CN 102896082 A CN102896082 A CN 102896082A CN 2012104044743 A CN2012104044743 A CN 2012104044743A CN 201210404474 A CN201210404474 A CN 201210404474A CN 102896082 A CN102896082 A CN 102896082A
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Abstract
The invention discloses a coating process. The coating process comprises the following steps: pre-treating a base material; then, degreasing and/or cleaning rust, and drying; and finally, coating prime lacquer. The coating process simplifies the complex pre-treatment process, not only completely satisfies the existing economical model based on low energy consumption, low exhaustion and low pollution, but also generates the effects of circular economy and reaches the requirements for establishing a cleaning production mechanism.
Description
Technical field
The present invention relates to field of coating, specifically relate to a kind of innovation and the coating process of new material in application techniques of coating process.
Background technology
Reduce painting cost, improve coating quality, reduce the theme that the application public hazards are the application techniques development always.
In the tradition coating process, when the article that easily become rusty such as metal are carried out the surface treatment of application anti-corrosive primer, the surfaces such as metal need reach more than the anticorrosion rust cleaning standard St3 level, by to the metal surface through electronic or manual polishing, sandblast supervisor, with all corrosions of surface part and original end, the complete Ex-all of finish paint; In the construction stage, need at least the end, in, face is coated with and is coated with respectively the erosion that just can prevent erosion.Through the workpiece that traditional coating process is processed, tensile strength only has 600-800psi, and coating easily breaks away from substrate surface; The hole that surface of the work forms because of corrosion, common coating can only be at surperficial package, and hole inside then can't be goed deep into, and after application, corrosion still can be continued in inside, original space; Aspect corrosion resistance, not by many internal authority tests, and itself contain a large amount of organic solvents, inflammable.
The major defect that exists in the tradition coating process is:
1, there are the disadvantages such as energy resource consumption is high, three waste discharge is many, environmental pollution is high in traditional coating process pre-treatment link and are harmful to operator's health;
2, pretreatment procedure is complicated, relates to supporting technical recipe, parameter is a lot of, is unfavorable for company's low cost movement and worker operation;
3, be subject to the restriction in space, may cause large-scale be coated with part (such as passenger vehicle, hull etc.) can't phosphatization, passivation, be difficult to guarantee that base material obtains good adhesive force and anticorrosion texts, thereby cause coating bad, produce unnecessary doing over again;
4, sewage disposal is complicated, and especially passivation procedure is to adopt to contain chromium passivating material, Cr6
+Belong to extremely toxic substance, and carcinogenesis is arranged, the maximal emission that allows in the industrial wastewater is 0.5mg/L.Use contains the passivating material of chromium, can increase undoubtedly the processing cost of waste water;
The effects such as that the lead that 5, adds in the electrophoretic paint and tin can play is anticorrosion, catalysis, passivation, acceleration are crosslinked, but lead is the very strong material of toxicity, tin also is heavy metal element, they all can produce water body pollutes.
Summary of the invention
Problem in view of above-mentioned prior art exists has proposed the present invention.
Therefore, the technical problem to be solved in the present invention is, how to provide a kind of Coating Pretreatment operation to simplify and can reduce " three wastes " discharging, select not leaded and chromate, low volatile organic to have simultaneously the coating process of the coating that fire prevention, chemically resistant material permeate.
For solving the problems of the technologies described above, the invention provides following technical scheme: a kind of coating process, it is first base material to be carried out preliminary treatment, then carries out degreasing and/or rust cleaning, and is then dry, sprays at last priming paint.
The present invention specifically in the following order operating procedure realizes coating process:
Step 1: preliminary treatment, base material is classified, determine pretreated method and remove foreign material on the base material etc.;
Step 2: degreasing and/or rust cleaning,,, the base material that cleaned is carried out draining process after the cleaning the judgement selection cleaning machine of base material and the cleaning agent of coupling according to preliminary treatment;
Step 3: drying, select suitable baking temperature and drying time according to base material;
Step 4: spraying priming paint, the non-position that is coated with of base material is covered, then carry out the substrate surface dedusting, apply as priming paint with the anticorrosion environment-friendly materials of band rust at last.
As a kind of preferred version of coating process of the present invention, wherein: in the described step 1 base material being classified is that primary coat, rustless metal and/or glass fibre are divided into a class, and is divided into corrosion metals and/or porose base material another kind of.
As a kind of preferred version of coating process of the present invention, wherein: when in the described step 1 corrosion metals being carried out preliminary treatment, rusting grade and the derusting grade of corrosion metals are judged.
As a kind of preferred version of coating process of the present invention, wherein: determine in the described step 1 that pretreated method is that the weight of base material greasy dirt is estimated, and determines to take corresponding greasy dirt detergent.
As a kind of preferred version of coating process of the present invention, wherein: cleaning machine described in the step 2 is hot water and cold water general-purpose type, and pressure reaches the jetting machine of 3～25MPa.
As a kind of preferred version of coating process of the present invention, wherein: when eliminating rust in the described step 2, according to Svensk Standard SIS055900 to the base material rusting grade when C, the D grade, the jetting machine selection pressure is between 10～25MPa.
As a kind of preferred version of coating process of the present invention, wherein: when eliminating rust in the described step 2, according to Svensk Standard SIS055900 to the base material rusting grade when A, the B grade, the jetting machine selection pressure is between 3～10MPa.
As a kind of preferred version of coating process of the present invention, wherein: when in the described step 4 primary coat, rustless metal and/or glass fibre one class base material being applied, its wet-film thickness is 5mils, build 2.5mils.
As a kind of preferred version of coating process of the present invention, wherein: when in the described step 4 corrosion metals and/or porose base material one class base material being applied, its wet-film thickness is 8mils, build 4mils.
Adopt technical scheme of the present invention, have following useful technique effect:
Coating process of the present invention allows complicated pretreatment procedure oversimplify, and not only meets existingly take low energy consumption, low emission, the low pollution as the economic model on basis fully, and can produce the recycling economy effect and reach the requirement that creates clean production mechanism.
The present invention adopts water under high pressure that greasy dirt or the old lacquer of having peeled off and lepidiod corrosion partial flushing is clean, gets final product application behind the surperficial bone dry, can do subbing or " three-in-one " end, in, the single layer coating that is coated with of face, operation is simple.After the application, surface tensile strength 3 Zhou Houke reach 6780psi, sclerosis can reach 12000psi fully, and contain special solvent carrier, can infiltrate the surface pore, not only the moisture in all spaces can be got rid of, simultaneously self can produce expansion, and all spaces are enriched, the authoritative institution test through the world through tests such as 15000h spray salt and the weather-proof tests of uvioresistant, has antiacid, alkalescence and solvent borne simultaneously, not leaded and chromate, low volatile organic, environmentally friendly and have advantages such as fire prevention, resistance to chemical corrosion.
Description of drawings
Fig. 1 is coating process schematic flow sheet of the present invention.
The specific embodiment
The invention will be further described below in conjunction with accompanying drawing.
As shown in Figure 1, coating process of the present invention comprises the steps.Step 111 is carried out preliminary treatment to base material; Step 112 is carried out degreasing and/or rust cleaning; Step 113, the dry processing; Step 114 sprays priming paint.
Technique of the present invention is carried out preliminary treatment to base material first, is mainly:
1, to base material classify (aluminium, steel, fiber, fiberglass etc.) determine pretreated method;
2, rusting grade and the derusting grade of steel are judged (being up to the st3 grade gets final product);
3, the weight of base material greasy dirt is estimated, in order to take corresponding greasy dirt detergent;
4, remove the dust be coated with on the part, welding slag, foreign material etc.
The purpose of processing before the application is to remove the grease on coated article surface, greasy dirt, corrosion product, residual impurity thing etc., and gives the surface certain chemistry, physical characteristic, to increase coat of paint adhesive force, the protectiveness of increase coated article and ornamental.The importance that the application front surface is processed is to provide the painted surface of a cleaning, improve the adhesive force of painting layer, generate the nonconducting nonmetallic chemical composition coating of one deck, improve the anti-corrosion capability of coating, and have characteristics such as the effect that makes active corrosion " deactivation " " solidization " and extremely strong penetrating power in conjunction with the anticorrosion environment-friendly materials of band rust, can satisfy the protection quality requirement of coating, therefore lower to the requirement of ground pre-treatment, especially steel surface rust cleaning is up to the St3 grade and gets final product, adopt jetting machine that greasy dirt or the old lacquer of having peeled off and lepidiod corrosion partial flushing is clean, bone dry gets final product application.
Then carry out degreasing and/or processing of rust removing, be mainly:
1, selects the cleaning agent of hot water or cold-water high-pressure cleaning machine and coupling according to the judgement of 111 pairs of base materials of preliminary treatment.Corrosion is more serious, namely according to Svensk Standard SIS055900 to the base material rusting grade when C, the D grade, selection pressure is at 1500～3500psi, about 10～25MPa is so that better rust cleaning; Not serious for corrosion, namely can select 450～1500psi to the base material rusting grade at A, B grade substrate surface according to Svensk Standard SIS055900, therefore about 3～10MPa should adopt cold and hot general-purpose type, pressure to reach the machine of 3～25MPa for the selection of jetting machine;
Of particular note,
According to Svensk Standard SIS055900.For steel plate, steel with oxide skin or band rust, this standard is divided into A with corrosion, B, and C, D4 grade:
A: the complete oxidized skin in steel surface covers, even and have rust also few.
B: the steel surface begins to get rusty, thus oxide skin and then beginning slabbing.
C: oxide skin has been become rusty and has been fallen on the steel surface, yet can with the naked eye see few spot corrosion.
D: oxide skin has been become rusty and has been fallen on the steel surface, and naked eyes can be seen the spot corrosion of a great deal of.
And, 1 ft lbf/inch
2(psi)=6.895 kPa (kPa)=0.0703 kilogram/centimetre
2(kg/cm
2)=0.0689 bar (bar)=0.068 atmospheric pressure (atm).
Whether 2, the base material that cleaned is carried out draining, observe greasy dirt and eliminate, whether derusting grade reaches construction requirement, return rust for trace and can do the processing of letting pass.
Then carry out drying and process, according to inhomogeneous base material, select suitable baking temperature and drying time.
Spray at last priming paint, be mainly:
1, the non-position that is coated with of base material is covered;
2, substrate surface is carried out dedusting, carry out wiping in order to reach better degreasing effect with special-purpose degreaser, it is bad thoroughly to solve the coating that greasy dirt causes;
3, become rusty anticorrosion environment-friendly materials as priming paint with band, coating thickness needs to be determined by the actual conditions at coated position by the relevant technologies personnel, is generally the 1-3 layer.
At this moment, execution conditions: best construction temperature is 4～49 ℃, and should not be at rainy day or temperature below 10 ℃, application more than 70 ℃; Best construction humidity is humidity 45～55%, and along with being increased to more than 60% of humidity, the hardening time of coating surface is shorter.
Construction tool can adopt soft hairbrush, cylinder, airless spray gun etc.
When primary coat, rustless metal and/or glass fibre one class base material were applied, its wet-film thickness was 5mils, build 2.5mils, and coating weight is 7.14m
2/ litre; When corrosion metals and/or porose base material one class base material were applied, its wet-film thickness was 8mils, build 4mils, and coating weight is 4.76m
2/ litre.
Herein, 1mil=0.0254mm.
In implementation, the band anticorrosion environment-friendly materials of rust and traditional rust-inhibiting primer coating test data are:
| Test performance | Standard | The anticorrosion environment-friendly materials of band rust | The tradition anti-corrosive primer |
| Adhesive force | ≤2 | 1 | 2 |
| Drying time | Biao Gan＜=2h | 0.5 | 1.0 |
| Resistance to water | 96h is without unusually | 96h is without unusually | 96h is without unusually |
| Alkali resistance | 48h is without unusually | 48h is without unusually | 48h is without unusually |
| Impact strength (Kg.cm) | ≥30 | 50 | 30 |
| Salt fog resistance | ≥96h | ﹥ 2000h is qualified | ﹥ 480h is qualified |
| Pliability | ≤3mm | 1 | 3 |
To sum up, the present invention allows complicated pretreatment procedure oversimplify, and not only meets existingly take low energy consumption, low emission, the low pollution as the economic model on basis fully, and can produce the recycling economy effect and reach the requirement that creates clean production mechanism.
It should be noted that, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, although with reference to preferred embodiment the present invention is had been described in detail, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement technical scheme of the present invention, and not breaking away from the spirit and scope of technical solution of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1. a coating process is characterized in that: first base material is carried out preliminary treatment, then carry out degreasing and/or rust cleaning, follow dry the processing, spray at last priming paint.
2. coating process according to claim 1 is characterized in that:
It is to finish in the following order coating process:
Step 1: preliminary treatment, base material is classified, determine pretreated method and remove foreign material on the base material etc.;
Step 2: degreasing and/or rust cleaning,,, the base material that cleaned is carried out draining process after the cleaning the judgement selection cleaning machine of base material and the cleaning agent of coupling according to preliminary treatment;
Step 3: drying, select suitable baking temperature and drying time according to base material;
Step 4: spraying priming paint, the non-position that is coated with of base material is covered, then carry out the substrate surface dedusting, apply as priming paint with the anticorrosion environment-friendly materials of band rust at last.
3. coating process according to claim 2, it is characterized in that: in the described step 1 base material being classified is that primary coat, rustless metal and/or glass fibre are divided into a class, and is divided into corrosion metals and/or porose base material another kind of.
4. coating process according to claim 2 is characterized in that: when in the described step 1 corrosion metals being carried out preliminary treatment, rusting grade and the derusting grade of corrosion metals are judged.
5. coating process according to claim 2 is characterized in that: determine in the described step 1 that pretreated method is that the weight of base material greasy dirt is estimated, determine to take corresponding greasy dirt detergent.
6. coating process according to claim 2, it is characterized in that: cleaning machine described in the step 2 is hot water and cold water general-purpose type, and pressure reaches the jetting machine of 3～25MPa.
7. coating process according to claim 2 is characterized in that: when eliminating rust in the described step 2, according to Svensk Standard SIS055900 to the base material rusting grade when C, the D grade, the jetting machine selection pressure is between 10～25MPa.
8. coating process according to claim 2 is characterized in that: when eliminating rust in the described step 2, according to Svensk Standard SIS055900 to the base material rusting grade when A, the B grade, the jetting machine selection pressure is between 3～10MPa.
9. coating process according to claim 2 is characterized in that: when in the described step 4 primary coat, rustless metal and/or glass fibre one class base material being applied, its wet-film thickness is 5mils, build 2.5mils.
10. coating process according to claim 2 is characterized in that: when in the described step 4 corrosion metals and/or porose base material one class base material being applied, its wet-film thickness is 8mils, build 4mils.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210404474.3A CN102896082B (en) | 2012-10-22 | 2012-10-22 | Coating process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210404474.3A CN102896082B (en) | 2012-10-22 | 2012-10-22 | Coating process |
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| Publication Number | Publication Date |
|---|---|
| CN102896082A true CN102896082A (en) | 2013-01-30 |
| CN102896082B CN102896082B (en) | 2014-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210404474.3A Active CN102896082B (en) | 2012-10-22 | 2012-10-22 | Coating process |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103625652A (en) * | 2013-11-28 | 2014-03-12 | 陕西飞机工业（集团）有限公司 | Aircraft body surface temporary protection method used on the way of aircraft ferry flights |
| CN106269438A (en) * | 2016-10-27 | 2017-01-04 | 欧派家居集团股份有限公司 | Wood products and coating process thereof |
| CN106269428A (en) * | 2016-08-19 | 2017-01-04 | 广东冠能电力科技发展有限公司 | A kind of Outdoor Terminal Case spray painting technique |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1032476B1 (en) * | 1997-11-20 | 2002-03-20 | E.I. Du Pont De Nemours & Company Incorporated | Method for multi-layered coating of substrates |
| CN1409657A (en) * | 1999-12-17 | 2003-04-09 | 坎梅陶尔股份有限公司 | Method for producing coated metal surfaces and its use |
| CN102489434A (en) * | 2011-11-16 | 2012-06-13 | 上海路丰达表面材料科技有限公司 | Dust-free corrosion-resistant coating process for steel materials |
-
2012
- 2012-10-22 CN CN201210404474.3A patent/CN102896082B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1032476B1 (en) * | 1997-11-20 | 2002-03-20 | E.I. Du Pont De Nemours & Company Incorporated | Method for multi-layered coating of substrates |
| CN1409657A (en) * | 1999-12-17 | 2003-04-09 | 坎梅陶尔股份有限公司 | Method for producing coated metal surfaces and its use |
| CN102489434A (en) * | 2011-11-16 | 2012-06-13 | 上海路丰达表面材料科技有限公司 | Dust-free corrosion-resistant coating process for steel materials |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103625652A (en) * | 2013-11-28 | 2014-03-12 | 陕西飞机工业（集团）有限公司 | Aircraft body surface temporary protection method used on the way of aircraft ferry flights |
| CN106269428A (en) * | 2016-08-19 | 2017-01-04 | 广东冠能电力科技发展有限公司 | A kind of Outdoor Terminal Case spray painting technique |
| CN106269438A (en) * | 2016-10-27 | 2017-01-04 | 欧派家居集团股份有限公司 | Wood products and coating process thereof |
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| Publication number | Publication date |
|---|---|
| CN102896082B (en) | 2014-11-05 |
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Effective date of registration: 20180207 Address after: 224000 South Road South Road, Yancheng economic and Technological Development Zone, Jiangsu Province, No. 43 Co-patentee after: Jiangsu Xinxin energy passenger car Co., Ltd. Patentee after: Jiangsu Aoxin New Energy Automobile Co., Ltd. Address before: 224007 South Road South Road, Yancheng City Development Zone, Jiangsu Province, No. 43 Patentee before: Jiangsu Aoxin New Energy Automobile Co., Ltd. |
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Effective date of registration: 20191112 Address after: 224000 No. 69, East Ring Road, Yancheng City economic and Technological Development Zone, Jiangsu Co-patentee after: Jiangsu Xinxin energy passenger car Co., Ltd. Patentee after: New Energy Automobile Research Institute Co Ltd Address before: 224000 South Road South Road, Yancheng economic and Technological Development Zone, Jiangsu Province, No. 43 Co-patentee before: Jiangsu Xinxin energy passenger car Co., Ltd. Patentee before: Jiangsu Aoxin New Energy Automobile Co., Ltd. |
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