CN107470105A - A kind of metallic paint front surface processing technology - Google Patents
A kind of metallic paint front surface processing technology Download PDFInfo
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- CN107470105A CN107470105A CN201710537790.0A CN201710537790A CN107470105A CN 107470105 A CN107470105 A CN 107470105A CN 201710537790 A CN201710537790 A CN 201710537790A CN 107470105 A CN107470105 A CN 107470105A
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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
-
- 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
- B05D3/10—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 other chemical means
- B05D3/102—Pretreatment of metallic substrates
-
- 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
- B05D3/12—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 mechanical means
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C22/00—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C22/05—Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using aqueous solutions
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- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
The invention discloses a kind of metallic paint front surface processing technology, comprise the following steps：（1）Surface degreasing processing,（2）Washing process,（3）Pickling processes,（4）Secondary washing process,（5）Blasting treatment,（6）Surface immersion treatment,（7）Secondary blasting treatment,（8）Cooling treatment.The present invention has carried out special surface treatment before being painted to metal work piece materials, effectively improves its surface property, enhances its binding ability between coating, improve the protection effect of paint vehicle coating, have good value for applications.
Description
Technical field
The present invention relates to a kind of metallic surface processing method, and in particular to a kind of metallic paint front surface processing technology.
Background technology
Described metal material is simple metal and its alloy on ordinary meaning, is the basic material for forming modern civilization society
One of.And conventional metal material the problems such as aging, corrosion occurs when being used in natural environment, and then have impact on seriously
It uses characteristic, it is therefore desirable to carries out the surface treatment such as anti-corrosion.It is more for the surface treatment method of metal material at present, such as phosphorus
Change processing, Passivation Treatment, spray painting processing etc., a protective layer can be formed on the surface of metal material, so as to strengthen metal material
Performance.Wherein spray painting processing can not only provide protective filmy layer, while can also change the appearance characteristics of metal material, assign
The more preferable appreciation effect of workpiece has been given, has been widely used in life.In order to lift the surface binding energy of paint vehicle and metal material,
Someone improves the surfaces characteristic such as the roughness of metal material using blasting treatment, so as to enhance the knot of paint vehicle and metal material
Conjunction ability, and good effect is achieved, but found in application analysis, blasting treatment can be inevitably in metal material
Residual stress is caused on material surface, while because blasting treatment can also bring the slight damage of metal material surface tissue, is also easy to produce micro-
Phenomena such as porous dehiscence line, paint vehicle is not high with tissue binding strength herein when coating, and especially inorganic fills out when containing in paint ingredient
Material, inorganic filler directly contacts with tissue herein, reduces coating local film-formation result herein again, follow-up to deposit when using
In performance hidden danger, the characteristics such as overall corrosion resistant, impact resistance are reduced.In view of this pre-treatment effect of existing spray painting can still be entered
Step, the problem of it is present, still need to improve.
The content of the invention
The purpose of the present invention is to be directed to the problem of existing, there is provided a kind of metallic paint front surface processing technology.
The present invention is achieved by the following technical solutions：
A kind of metallic paint front surface processing technology, comprises the following steps：
（1）Surface degreasing processing：
Metal works to be processed are immersed in electrochemical deoiling liquid and carry out immersion oil removal treatment, during which heating keeps electrochemical deoiling
The temperature of liquid is 65 ~ 70 DEG C, is taken out metal works after 3 ~ 5min of immersion treatment standby；
（2）Washing process：
By step（1）Metal works after processing be submerged initially in temperature be soaking and washing processing 10 in 45 ~ 50 DEG C of hot water ~
15min, soaking and washing in the warm water that temperature is 20 ~ 25 DEG C is dipped in after taking-up again and handles 10 ~ 15min, is finally taken out standby
With；
（3）Pickling processes：
By step（2）Metal works after processing are immersed in pickle, and it is 35 ~ 40 DEG C that heating, which keeps the temperature of pickle, leaching
Taken out after 15 ~ 20min of bubble processing standby；Each composition and its content are in described pickle：50 ~ 60g/L of the concentrated sulfuric acid, concentrated hydrochloric acid
80 ~ 100 g/L, 100 ~ 150g/L of salt, the g/L of corrosion inhibiter 4 ~ 7, surplus is water；
（4）Secondary washing process：
By step（3）Metal works after processing be submerged initially in temperature be soaking and washing processing 10 in 45 ~ 50 DEG C of hot water ~
15min, soaking and washing in the warm water that temperature is 20 ~ 25 DEG C is dipped in after taking-up again and handles 10 ~ 15min, is finally taken out standby
With；
（5）Blasting treatment：
To step（4）Metal works after processing carry out a blasting treatment, metal works are first preheating to 70 before blasting treatment ~
80 DEG C, the granular size that blast media is controlled during blasting treatment is 0.7 ~ 0.8mm, and the Stress control of sandblasting is 0.6 ~ 0.65MPa,
The angle of injection is in 90 ° with workpiece surface, and the distance of nozzle and workpiece surface is 105 ~ 110mm；
（6）Surface immersion treatment：
By step（5）Metal works after processing, which are immersed in modification liquid, carries out immersion treatment, and during which heating keeps being modified
The temperature for the treatment of fluid is 45 ~ 50 DEG C, is taken out after 35 ~ 40min of immersion treatment standby；In described modification liquid each composition and its
Weight percent content is：Polyethylene glycol 4 ~ 6%, titanate coupling agent 3 ~ 5%, hydroxyethyl methacrylate 2 ~ 4%, ethylenediamine tetraacetic
Acetic acid disodium 0.5 ~ 1.5%, surplus are water；
（7）Secondary blasting treatment：
To step（6）Metal works after processing carry out secondary blasting treatment, and metal works first are preheating into 140 before blasting treatment
~ 150 DEG C, the granular size that blast media is controlled during blasting treatment is 0.2 ~ 0.3mm, the Stress control of sandblasting for 0.6 ~
0.65MPa, angle and the workpiece surface of injection are in 90 °, and the distance of nozzle and workpiece surface is 85 ~ 90mm；
（8）Cooling treatment：
To step（7）Metal works after processing are cooled down, and 85 ~ 90 DEG C of phases are cooled to after the completion of by it by secondary sandblasting
Between, the speed for controlling cooling is 10 ~ 12 DEG C/min, is drawn off being put under natural conditions after metal works are down to 85 ~ 90 DEG C
Naturally cool to room temperature.
Further, step（1）Described in electrochemical deoiling liquid in each composition and its content be：It is 5 ~ 8g/L of OP-10, more
15 ~ 20g/L of polyphosphate sodium, 1 ~ 2g/L of triethanolamine, surplus are water.
Further, step（5）And step（7）Described in blast media select iron-sand.
Present invention selection carries out sand blasted surface processing before metal japanning, to improve the surface characteristic of metal works, so as to
The effect of japanning is lifted, and improvement processing has been carried out to specific handling process, effectively improves existing sandblasting pre-treatment not
Good problem.Surface degreasing, once washing, pickling, secondary washing process first wherein are carried out to metal work piece materials, effectively eliminated
The impurity such as the grease on metal work piece materials surface, dirt, oxide-film, rust stain, lay a good foundation for follow-up processing, then to it
Special blasting treatment operation has been carried out, has first carried out a blasting treatment, shot blasting particles particle diameter used is larger, in metal work
The larger micro- hole in aperture, projection etc. are formd on part surface, ensure that the roughness basis of surface of workpiece, grafting is again by it
It is immersed in modification liquid, active ingredient therein can form organic molecular film in surface of workpiece, can strengthen metal watch
Binding ability between face and paint vehicle, its metal surface activity is improved, and secondary blasting treatment has been carried out to it, it is used
Shot blasting particles particle diameter is smaller, and blasting treatment now can further enhance metal works on the basis of a blasting treatment structure
The structure complexity on surface, the binding ability between metal works and coating is improved, and to metal work before secondary blasting treatment
The modification immersion treatment that part is carried out, the film layer of generation can fill in the presence of secondary sandblasting impulsive force again to be scattered in tissue,
The micropore gap that later stage coating can not fill is reduced, improves the combination degree between coating and metal works, and can weakens gold
Stress caused by friction at this class formation, improves fatigue strength characteristics, in addition before secondary blasting treatment when metal work-pieces use
Heating treatment has been carried out to workpiece again, has been risen to 140 ~ 150 DEG C, metal surface institutional framework hardness reduces under fuel factor,
Impact beneficial to fine sand etches, while and can weakens the generation of impact stress, when finally being cooled down to it, controls the low speed of early stage cold
But alleviate stress when reducing blasting treatment twice well, enhance the quality of metal surface.
The present invention has advantages below compared with prior art：
The present invention has carried out special surface treatment before being painted to metal work piece materials, effectively improves its surface property, strengthens
Its binding ability between coating, improves the protection effect of paint vehicle coating, has good value for applications.
Embodiment
Embodiment 1
A kind of metallic paint front surface processing technology, comprises the following steps：
（1）Surface degreasing processing：
Metal works to be processed are immersed in electrochemical deoiling liquid and carry out immersion oil removal treatment, during which heating keeps electrochemical deoiling
The temperature of liquid is 65 DEG C, is taken out metal works after immersion treatment 3min standby；
（2）Washing process：
By step（1）Metal works after processing are submerged initially in soaking and washing in the hot water that temperature is 45 DEG C and handle 10min, take out
It is dipped in soaking and washing in the warm water that temperature is 20 DEG C again afterwards and handles 10min, finally takes out standby；
（3）Pickling processes：
By step（2）Metal works after processing are immersed in pickle, and it is 35 DEG C that heating, which keeps the temperature of pickle, at immersion
Taken out after reason 15min standby；Each composition and its content are in described pickle：Concentrated sulfuric acid 50g/L, the g/L of concentrated hydrochloric acid 80, food
Salt 100g/L, corrosion inhibiter 4g/L, surplus are water；
（4）Secondary washing process：
By step（3）Metal works after processing are submerged initially in soaking and washing in the hot water that temperature is 45 DEG C and handle 10min, take out
It is dipped in soaking and washing in the warm water that temperature is 20 DEG C again afterwards and handles 10min, finally takes out standby；
（5）Blasting treatment：
To step（4）Metal works after processing carry out a blasting treatment, and metal works first are preheating into 70 before blasting treatment
DEG C, the granular size that blast media is controlled during blasting treatment is 0.7 ~ 0.8mm, and the Stress control of sandblasting is 0.6MPa, injection
Angle is in 90 ° with workpiece surface, and the distance of nozzle and workpiece surface is 105mm；
（6）Surface immersion treatment：
By step（5）Metal works after processing, which are immersed in modification liquid, carries out immersion treatment, and during which heating keeps being modified
The temperature for the treatment of fluid is 45 DEG C, is taken out after immersion treatment 35min standby；Each composition and its weight hundred in described modification liquid
Divide than content and be：Polyethylene glycol 4%, titanate coupling agent 3%, hydroxyethyl methacrylate 2%, disodium ethylene diamine tetraacetate 0.5%,
Surplus is water；
（7）Secondary blasting treatment：
To step（6）Metal works after processing carry out secondary blasting treatment, and metal works first are preheating into 140 before blasting treatment
DEG C, the granular size that blast media is controlled during blasting treatment is 0.2 ~ 0.3mm, and the Stress control of sandblasting is 0.6MPa, injection
Angle is in 90 ° with workpiece surface, and the distance of nozzle and workpiece surface is 85mm；
（8）Cooling treatment：
To step（7）Metal works after processing are cooled down, during 85 DEG C are cooled to after the completion of by it by secondary sandblasting, control
Refrigeration speed but is 10 DEG C/min, is drawn off being put under natural conditions after metal works are down to 85 DEG C and naturally cools to room
Temperature.
Further, step（1）Described in electrochemical deoiling liquid in each composition and its content be：OP-10 5g/L, poly
Sodium phosphate 15g/L, triethanolamine 1g/L, surplus are water.
Further, step（5）And step（7）Described in blast media select iron-sand.
Embodiment 2
A kind of metallic paint front surface processing technology, comprises the following steps：
（1）Surface degreasing processing：
Metal works to be processed are immersed in electrochemical deoiling liquid and carry out immersion oil removal treatment, during which heating keeps electrochemical deoiling
The temperature of liquid is 68 DEG C, is taken out metal works after immersion treatment 4min standby；
（2）Washing process：
By step（1）Metal works after processing are submerged initially in soaking and washing in the hot water that temperature is 47 DEG C and handle 12min, take out
It is dipped in soaking and washing in the warm water that temperature is 22 DEG C again afterwards and handles 14min, finally takes out standby；
（3）Pickling processes：
By step（2）Metal works after processing are immersed in pickle, and it is 37 DEG C that heating, which keeps the temperature of pickle, at immersion
Taken out after reason 18min standby；Each composition and its content are in described pickle：Concentrated sulfuric acid 55g/L, the g/L of concentrated hydrochloric acid 90, food
Salt 120g/L, the g/L of corrosion inhibiter 5, surplus is water；
（4）Secondary washing process：
By step（3）Metal works after processing are submerged initially in soaking and washing in the hot water that temperature is 49 DEG C and handle 14min, take out
It is dipped in soaking and washing in the warm water that temperature is 23 DEG C again afterwards and handles 12min, finally takes out standby；
（5）Blasting treatment：
To step（4）Metal works after processing carry out a blasting treatment, and metal works first are preheating into 75 before blasting treatment
DEG C, the granular size that blast media is controlled during blasting treatment is 0.7 ~ 0.8mm, and the Stress control of sandblasting is 0.62MPa, injection
Angle is in 90 ° with workpiece surface, and the distance of nozzle and workpiece surface is 108mm；
（6）Surface immersion treatment：
By step（5）Metal works after processing, which are immersed in modification liquid, carries out immersion treatment, and during which heating keeps being modified
The temperature for the treatment of fluid is 48 DEG C, is taken out after immersion treatment 37min standby；Each composition and its weight hundred in described modification liquid
Divide than content and be：Polyethylene glycol 5%, titanate coupling agent 4%, hydroxyethyl methacrylate 3%, disodium ethylene diamine tetraacetate 1%, it is remaining
Measure as water；
（7）Secondary blasting treatment：
To step（6）Metal works after processing carry out secondary blasting treatment, and metal works first are preheating into 145 before blasting treatment
DEG C, the granular size that blast media is controlled during blasting treatment is 0.2 ~ 0.3mm, and the Stress control of sandblasting is 0.63MPa, injection
Angle is in 90 ° with workpiece surface, and the distance of nozzle and workpiece surface is 88mm；
（8）Cooling treatment：
To step（7）Metal works after processing are cooled down, during 87 DEG C are cooled to after the completion of by it by secondary sandblasting, control
Refrigeration speed but is 11 DEG C/min, is drawn off being put under natural conditions after metal works are down to 87 DEG C and naturally cools to room
Temperature.
Further, step（1）Described in electrochemical deoiling liquid in each composition and its content be：OP-10 7g/L, poly
Sodium phosphate 18g/L, triethanolamine 1.5g/L, surplus are water.
Further, step（5）And step（7）Described in blast media select iron-sand.
Embodiment 3
A kind of metallic paint front surface processing technology, comprises the following steps：
（1）Surface degreasing processing：
Metal works to be processed are immersed in electrochemical deoiling liquid and carry out immersion oil removal treatment, during which heating keeps electrochemical deoiling
The temperature of liquid is 70 DEG C, is taken out metal works after immersion treatment 5min standby；
（2）Washing process：
By step（1）Metal works after processing are submerged initially in soaking and washing in the hot water that temperature is 50 DEG C and handle 15min, take out
It is dipped in soaking and washing in the warm water that temperature is 25 DEG C again afterwards and handles 15min, finally takes out standby；
（3）Pickling processes：
By step（2）Metal works after processing are immersed in pickle, and it is 40 DEG C that heating, which keeps the temperature of pickle, at immersion
Taken out after reason 20min standby；Each composition and its content are in described pickle：Concentrated sulfuric acid 60g/L, the g/L of concentrated hydrochloric acid 100, food
Salt 150g/L, the g/L of corrosion inhibiter 7, surplus is water；
（4）Secondary washing process：
By step（3）Metal works after processing are submerged initially in soaking and washing in the hot water that temperature is 50 DEG C and handle 15min, take out
It is dipped in soaking and washing in the warm water that temperature is 25 DEG C again afterwards and handles 15min, finally takes out standby；
（5）Blasting treatment：
To step（4）Metal works after processing carry out a blasting treatment, and metal works first are preheating into 80 before blasting treatment
DEG C, the granular size that blast media is controlled during blasting treatment is 0.7 ~ 0.8mm, and the Stress control of sandblasting is 0.65MPa, injection
Angle is in 90 ° with workpiece surface, and the distance of nozzle and workpiece surface is 110mm；
（6）Surface immersion treatment：
By step（5）Metal works after processing, which are immersed in modification liquid, carries out immersion treatment, and during which heating keeps being modified
The temperature for the treatment of fluid is 50 DEG C, is taken out after immersion treatment 40min standby；Each composition and its weight hundred in described modification liquid
Divide than content and be：Polyethylene glycol 6%, titanate coupling agent 5%, hydroxyethyl methacrylate 4%, disodium ethylene diamine tetraacetate 1.5%,
Surplus is water；
（7）Secondary blasting treatment：
To step（6）Metal works after processing carry out secondary blasting treatment, and metal works first are preheating into 150 before blasting treatment
DEG C, the granular size that blast media is controlled during blasting treatment is 0.2 ~ 0.3mm, and the Stress control of sandblasting is 0.65MPa, injection
Angle is in 90 ° with workpiece surface, and the distance of nozzle and workpiece surface is 90mm；
（8）Cooling treatment：
To step（7）Metal works after processing are cooled down, during 90 DEG C are cooled to after the completion of by it by secondary sandblasting, control
Refrigeration speed but is 12 DEG C/min, is drawn off being put under natural conditions after metal works are down to 90 DEG C and naturally cools to room
Temperature.
Further, step（1）Described in electrochemical deoiling liquid in each composition and its content be：OP-10 8g/L, poly
Sodium phosphate 20g/L, triethanolamine 2g/L, surplus are water.
Further, step（5）And step（7）Described in blast media select iron-sand.
Comparative example 1
This comparative example 1 compared with Example 2, saves step（6）Surface immersion treatment, method and step in addition are homogeneous
Together.
Comparative example 2
This comparative example 2 compared with Example 2, saves step（7）Secondary blasting treatment, method and step in addition are homogeneous
Together.
Comparative example 3
This comparative example 3 compared with Example 2, by step（6）Surface immersion treatment and step（7）The place of secondary blasting treatment
Science and engineering ordered pair is adjusted, method and step all same in addition.
Comparative example 4
This comparative example 4 compared with Example 2, saves step（6）Surface immersion treatment and step（7）At secondary sandblasting
Reason, method and step all same in addition.
In order to contrast effect of the present invention, from No. 304 stainless steels as process object, respectively with above-described embodiment 2, contrast
Embodiment 1, comparative example 2, comparative example 3, the method described in comparative example 4 are surface-treated, after the completion of use again
Coating of the same race is coated processing（Coating is epoxy resin-matrix coating, wherein containing the nano titanium oxide that mass fraction is 3%
Filler composition）, performance test finally is carried out to the stainless steel work-piece after each group processing, specific correction data is as shown in table 1 below：
Table 1
| Coating adhesion grade | Coating acid resistance observed result | Coating alkali resistance observed result | Fatigue life（It is secondary） | |
| Embodiment 2 | 1 | It is unchanged | It is unchanged | 15842 |
| Comparative example 1 | 2 | Surface is turned white, loss of gloss, micro- foaming | Slightly turn white, slight loss of gloss, micro- foaming | 13081 |
| Comparative example 2 | 2 | Surface is turned white, loss of gloss, foaming are obvious | Surface is turned white, loss of gloss, micro- foaming | 12590 |
| Comparative example 3 | 1 | Slightly turn white, slight loss of gloss | Slightly turn white, slight loss of gloss | 14269 |
| Comparative example 4 | 2 | Surface is turned white, loss of gloss, foaming are serious | Surface is turned white, loss of gloss, foaming are serious | 11433 |
Note：Coating adhesion grade described in upper table 1 is tested with reference to GB/T 9286-1998；Described coating is acidproof
Property, alkali resistance observed result is with reference to GB/T 1763-79（88）Tested；Described fatigue life is to characterize fatigue strength
Parameter, tested with reference to GB/T3075-2008, the loading force specifically loaded is ± 22kN, and the temperature of experiment is 25 DEG C.
Processing method of the present invention can effectively improve the use characteristic of metal material workpiece it can be seen from upper table 1, lifting
The binding ability of coating and metal, comprehensive use value are high.
Claims (3)
1. a kind of metallic paint front surface processing technology, it is characterised in that comprise the following steps：
（1）Surface degreasing processing：
Metal works to be processed are immersed in electrochemical deoiling liquid and carry out immersion oil removal treatment, during which heating keeps electrochemical deoiling
The temperature of liquid is 65 ~ 70 DEG C, is taken out metal works after 3 ~ 5min of immersion treatment standby；
（2）Washing process：
By step（1）Metal works after processing be submerged initially in temperature be soaking and washing processing 10 in 45 ~ 50 DEG C of hot water ~
15min, soaking and washing in the warm water that temperature is 20 ~ 25 DEG C is dipped in after taking-up again and handles 10 ~ 15min, is finally taken out standby
With；
（3）Pickling processes：
By step（2）Metal works after processing are immersed in pickle, and it is 35 ~ 40 DEG C that heating, which keeps the temperature of pickle, leaching
Taken out after 15 ~ 20min of bubble processing standby；Each composition and its content are in described pickle：50 ~ 60g/L of the concentrated sulfuric acid, concentrated hydrochloric acid
80 ~ 100 g/L, 100 ~ 150g/L of salt, the g/L of corrosion inhibiter 4 ~ 7, surplus is water；
（4）Secondary washing process：
By step（3）Metal works after processing be submerged initially in temperature be soaking and washing processing 10 in 45 ~ 50 DEG C of hot water ~
15min, soaking and washing in the warm water that temperature is 20 ~ 25 DEG C is dipped in after taking-up again and handles 10 ~ 15min, is finally taken out standby
With；
（5）Blasting treatment：
To step（4）Metal works after processing carry out a blasting treatment, metal works are first preheating to 70 before blasting treatment ~
80 DEG C, the granular size that blast media is controlled during blasting treatment is 0.7 ~ 0.8mm, and the Stress control of sandblasting is 0.6 ~ 0.65MPa,
The angle of injection is in 90 ° with workpiece surface, and the distance of nozzle and workpiece surface is 105 ~ 110mm；
（6）Surface immersion treatment：
By step（5）Metal works after processing, which are immersed in modification liquid, carries out immersion treatment, and during which heating keeps being modified
The temperature for the treatment of fluid is 45 ~ 50 DEG C, is taken out after 35 ~ 40min of immersion treatment standby；In described modification liquid each composition and its
Weight percent content is：Polyethylene glycol 4 ~ 6%, titanate coupling agent 3 ~ 5%, hydroxyethyl methacrylate 2 ~ 4%, ethylenediamine tetraacetic
Acetic acid disodium 0.5 ~ 1.5%, surplus are water；
（7）Secondary blasting treatment：
To step（6）Metal works after processing carry out secondary blasting treatment, and metal works first are preheating into 140 before blasting treatment
~ 150 DEG C, the granular size that blast media is controlled during blasting treatment is 0.2 ~ 0.3mm, the Stress control of sandblasting for 0.6 ~
0.65MPa, angle and the workpiece surface of injection are in 90 °, and the distance of nozzle and workpiece surface is 85 ~ 90mm；
（8）Cooling treatment：
To step（7）Metal works after processing are cooled down, and 85 ~ 90 DEG C of phases are cooled to after the completion of by it by secondary sandblasting
Between, the speed for controlling cooling is 10 ~ 12 DEG C/min, is drawn off being put under natural conditions after metal works are down to 85 ~ 90 DEG C
Naturally cool to room temperature.
A kind of 2. metallic paint front surface processing technology according to claim 1, it is characterised in that step（1）Described in
Each composition and its content are in electrochemical deoiling liquid：5 ~ 8g/L of OP-10,15 ~ 20g/L of sodium polyphosphate, 1 ~ 2g/L of triethanolamine,
Surplus is water.
A kind of 3. metallic paint front surface processing technology according to claim 1, it is characterised in that step（5）And step（7）
Described in blast media select iron-sand.
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| CN201710537790.0A CN107470105A (en) | 2017-07-04 | 2017-07-04 | A kind of metallic paint front surface processing technology |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710537790.0A CN107470105A (en) | 2017-07-04 | 2017-07-04 | A kind of metallic paint front surface processing technology |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108906553A (en) * | 2018-06-27 | 2018-11-30 | 广州海格通信集团股份有限公司 | The surface treatment method and aluminum alloy materials of aluminum alloy base material |
| CN109310013A (en) * | 2018-11-08 | 2019-02-05 | 陕西生益科技有限公司 | A kind of metal-based copper-clad plate metallic substrate surfaces processing method |
| CN109390115A (en) * | 2018-10-19 | 2019-02-26 | 平高集团有限公司 | A kind of surface treatment method of the metal insert for resin-cast insulator, resin-cast insulator and preparation method thereof |
| CN109594085A (en) * | 2018-12-05 | 2019-04-09 | 敬业钢铁有限公司 | A kind of hot rolled steel plate derusting method |
| CN112080737A (en) * | 2020-08-17 | 2020-12-15 | 尹波 | Surface treatment method for communication radiator and product thereof |
| CN112501668A (en) * | 2020-08-04 | 2021-03-16 | 上海船舶工艺研究所(中国船舶工业集团公司第十一研究所) | Surface treatment method for stainless steel with high adhesion with coating |
| CN113238473A (en) * | 2021-05-25 | 2021-08-10 | 东莞市百兴精密五金有限公司 | Manufacturing process of decorative pressed glittering sand for watch dial |
| CN114800281A (en) * | 2022-05-07 | 2022-07-29 | 深圳引意物联家居科技有限公司 | Intelligent household metal paint pearlescent treatment process |
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| CN108906553A (en) * | 2018-06-27 | 2018-11-30 | 广州海格通信集团股份有限公司 | The surface treatment method and aluminum alloy materials of aluminum alloy base material |
| CN109390115A (en) * | 2018-10-19 | 2019-02-26 | 平高集团有限公司 | A kind of surface treatment method of the metal insert for resin-cast insulator, resin-cast insulator and preparation method thereof |
| CN109390115B (en) * | 2018-10-19 | 2020-07-31 | 平高集团有限公司 | Surface treatment method for metal insert of resin-cast insulator, resin-cast insulator and preparation method thereof |
| CN109310013A (en) * | 2018-11-08 | 2019-02-05 | 陕西生益科技有限公司 | A kind of metal-based copper-clad plate metallic substrate surfaces processing method |
| CN109594085A (en) * | 2018-12-05 | 2019-04-09 | 敬业钢铁有限公司 | A kind of hot rolled steel plate derusting method |
| CN112501668A (en) * | 2020-08-04 | 2021-03-16 | 上海船舶工艺研究所(中国船舶工业集团公司第十一研究所) | Surface treatment method for stainless steel with high adhesion with coating |
| CN112501668B (en) * | 2020-08-04 | 2024-04-05 | 上海船舶工艺研究所(中国船舶集团有限公司第十一研究所) | Stainless steel surface treatment method with high adhesion to coating |
| CN112080737A (en) * | 2020-08-17 | 2020-12-15 | 尹波 | Surface treatment method for communication radiator and product thereof |
| CN113238473A (en) * | 2021-05-25 | 2021-08-10 | 东莞市百兴精密五金有限公司 | Manufacturing process of decorative pressed glittering sand for watch dial |
| CN114800281A (en) * | 2022-05-07 | 2022-07-29 | 深圳引意物联家居科技有限公司 | Intelligent household metal paint pearlescent treatment process |
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