CN107362957A - A kind of Mg alloy surface anticorrosive treatment process - Google Patents
A kind of Mg alloy surface anticorrosive treatment process Download PDFInfo
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- 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
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- 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
- B05D3/14—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 electrical means
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
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- 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
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- 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
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- 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
- C23G—CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS
- C23G5/00—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents
- C23G5/02—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents
- C23G5/028—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons
- C23G5/02803—Cleaning or de-greasing metallic material by other methods; Apparatus for cleaning or de-greasing metallic material with organic solvents using organic solvents containing halogenated hydrocarbons containing fluorine
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- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25F—PROCESSES FOR THE ELECTROLYTIC REMOVAL OF MATERIALS FROM OBJECTS; APPARATUS THEREFOR
- C25F1/00—Electrolytic cleaning, degreasing, pickling or descaling
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- C25F1/04—Pickling; Descaling in solution
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- B05D2202/20—Metallic substrate based on light metals
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- B05D2451/00—Type of carrier, type of coating (Multilayers)
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B05D2502/00—Acrylic polymers
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Abstract
The invention belongs to mechanical engineering material technical field, there is provided a kind of Mg alloy surface anticorrosive treatment process, technique comprise the following steps：Surface preparation；Degreasing；Cleaning；Dry；Rust prevention by applying liquid material paint；Drying；Spray the colored varnish；Baking.The handling process pre-processes to Mg alloy surface first, removes water-solubility impurity by cleaning showers, then by electrolytic degreasing, the magnesium alloy after processing is easy to want to contact with degreasing agent during follow-up ungrease treatment.Mg alloy surface after degreasing adheres to one layer of degreasing film, and this layer of degreasing film is unfavorable for the spraying of follow-up antirust paint, it is therefore desirable to magnesium alloy is cleaned again, washes away the degreasing film on surface.Afterwards in order to improve the Corrosion Protection of magnesium alloy, it is necessary to one layer of antirust paint of magnesium alloy surface spraying so that the Corrosion Protection of magnesium alloy greatly improves.
Description
Technical field
The invention belongs to mechanical engineering material technical field, specifically, a kind of Mg alloy surface anticorrosive treatment process.
Background technology
Magnesium alloy is that the alloy that other elements form is added by base of magnesium.It is characterized in：Density is small, and specific strength is high, than bullet
Property modulus is big, and good heat dissipation, absorb shock resistance is good, and the load-carrying ability that withstands shocks is bigger than aluminium alloy, and the corrosive nature of resistance to organic matter and alkali is good.
Main alloy element has aluminium, zinc, manganese, cerium, thorium and a small amount of zirconium or cadmium etc..What use was most wide at present is magnesium alloy, next to that
Magnesium-manganese alloy and magnesium zinc zircaloy.It is mainly used in the industrial departments such as Aeronautics and Astronautics, transport, chemical industry, rocket.In practical metal
It is most light metal, the proportion of magnesium is about the 2/3 of aluminium, is the 1/4 of iron.It is the most light metal in practical metal, high-strength
Degree, high rigidity.
But magnesium alloy has very high chemism, with the phase such as conventional structural metallic materials such as aluminium alloy and steel
Than, easily corrode in moist atmosphere, fresh water, seawater, most of organic acids and its salt, inorganic acid and its salt, this
Largely hinder the extensive use of magnesium alloy.Therefore, etching problem be considered as the primary of current development magnesium alloy and
Key problem, only effectively solve Research on Corrosion of Magnesium Alloys, magnesium alloy could be promoted widely to apply.
The performance advantage of magnesium alloy is fully played, its corrosion resistant is improved by various process for treating surface
Corrosion can be considered as one of maximally effective approach.
The content of the invention
For in the prior art the defects of, it is an object of the invention to provide a kind of Mg alloy surface anticorrosive treatment process.
According to a kind of Mg alloy surface anticorrosive treatment process provided by the invention, at described Mg alloy surface anticorrosion
Science and engineering skill comprises the following steps：
（1）Surface preparation：Mg alloy surface is pre-processed；
（2）Degreasing：Pretreated magnesium alloy is put into degreasing agent, soak degreasing 3-4min, it is 20-45 DEG C to control temperature；
（3）Cleaning：By the step（2）Running water used for magnesium alloy after middle degreasing rinses 2-5 times, washes away the de- of Mg alloy surface
Fat agent；
（4）Dry：By the step（3）Magnesium alloy after middle cleaning is put into baking oven and dried, and drying temperature is 60-170 DEG C, when
Between be 5-15min；
（5）Rust prevention by applying liquid material paint：To the step（4）In dried magnesium alloy surface spraying antirust paint, the antirust of the spraying
Paint thickness and be more than 50 μm；
（6）Drying：Magnesium alloy after rust prevention by applying liquid material paint is put into drying in oven, drying temperature is 60-80 DEG C, time 10-
15min；
（7）Spray the colored varnish：To the step（6）The magnesium alloy surface spraying colored varnish after middle processing, and the colored varnish
Thickness is more than 25 μm；
（8）Baking：By the step（7）The magnesium alloy of the middle spraying colored varnish toasts 20-30min under the conditions of being placed in 80-150 DEG C,
.
Preferably, the step（1）Middle pretreatment comprises the following specific steps that：
Step 1: carrying out spray washing to magnesium alloy using running water, the spray washing time is 250-300S；
Step 2: the magnesium alloy after washing is dried；
Electrolytic degreasing is carried out Step 3: dried magnesium alloy is placed in electroplating solution, the electrolytic degreasing time is 600-800S,
The flow velocity of the electroplating solution is 50-60L/min, and electroplating solution temperature is 50-60 DEG C, each composition quality in the electroplating solution
Number is：Surfactant 5-8 parts, sodium hydroxide 36-40 parts, running water 50-55 parts；
Step 4: it is to magnesium alloy progress spray washing, spray washing time by the running water used for magnesium alloy after electrolytic degreasing
350-500S。
Preferably, the step（2）In degreasing agent include the raw materials of following parts by weight：Hydrochloric acid 30-50 parts, acetic acid 5-
10 parts, ammonium acid fluoride 3-8 parts, sodium nitrate 1-3 parts, zinc sulfate 0.5-2 parts, hexamethylene 0.5-2 parts, fluorinated hydrocarbon solvent 0.05-0.4
Part, surfactant 0.02-0.2 parts.
Preferably, the surfactant is neopelex.
Preferably, the step（2）In antirust paint include the raw materials of following parts by weight：Pitch 30-50 parts, plasticizer
1-8 parts, polycarbonate 19-34 parts, barium sulfate 8-12 parts, diatomite 0.3-1.2 parts, solvent 6-13 parts.
Preferably, the step（7）In the colored varnish include the raw materials of following parts by weight：Acrylic resin 25-35 parts,
Hydroxylated acrylic resin 15-25 parts, nano silicon 1.4-3.6 parts, coalescents 4-6 parts.
Preferably, the drying condition in the step 2 is under the conditions of 100-140 DEG C, dries 15-20min.
Preferably, the coalescents are propylene glycol methyl ether acetate.
Compared with prior art, the present invention has following beneficial effect：
A kind of Mg alloy surface anticorrosive treatment process provided by the invention, the handling process carry out pre- to Mg alloy surface first
Processing, water-solubility impurity is removed by cleaning showers, then by electrolytic degreasing, the magnesium alloy after processing be easy to at follow-up degreasing
Degreasing agent is wanted to contact during reason.Mg alloy surface after degreasing adheres to one layer of degreasing film, and this layer of degreasing film is unfavorable for
The spraying of follow-up antirust paint, it is therefore desirable to cleaned again to magnesium alloy, wash away the degreasing film on surface.Afterwards in order to improve magnesium
The Corrosion Protection of alloy is, it is necessary to one layer of antirust paint of magnesium alloy surface spraying, and the antirust paint ingredients in the present invention is by reasonable
Compounding, be made using pitch, plasticizer, polycarbonate, barium sulfate, diatomite and solvent as raw material so that the anti-corrosion of magnesium alloy
Corrosion can greatly improve.Finally by the spraying colored varnish and baking operation so that magnesium alloy has significant anti-corrosion capability.
Embodiment
With reference to specific embodiment, the present invention is expanded on further.It should be understood that these embodiments are merely to illustrate the present invention
Rather than limitation the scope of the present invention.
Embodiment 1
A kind of Mg alloy surface anticorrosive treatment process that the present embodiment provides, described Mg alloy surface anticorrosive treatment process
Comprise the following steps：
（1）Surface preparation：Mg alloy surface is pre-processed；
（2）Degreasing：Pretreated magnesium alloy is put into degreasing agent, soak degreasing 4min, it is 20 DEG C to control temperature；
（3）Cleaning：By the step（2）Running water used for magnesium alloy after middle degreasing rinses 5 times, washes away the degreasing agent of Mg alloy surface；
（4）Dry：By the step（3）Magnesium alloy after middle cleaning is put into baking oven and dried, and drying temperature is 170 DEG C, the time
For 5min；
（5）Rust prevention by applying liquid material paint：To the step（4）In dried magnesium alloy surface spraying antirust paint, the antirust of the spraying
Paint thickness and be more than 50 μm；
（6）Drying：Magnesium alloy after rust prevention by applying liquid material paint is put into drying in oven, drying temperature is 80 DEG C, time 10min；
（7）Spray the colored varnish：To the step（6）The magnesium alloy surface spraying colored varnish after middle processing, and the colored varnish
Thickness is more than 25 μm；
（8）Baking：By the step（7）The magnesium alloy of the middle spraying colored varnish toasts 20min under the conditions of being placed in 150 DEG C, you can.
Wherein, the step（1）Middle pretreatment comprises the following specific steps that：
Step 1: carrying out spray washing to magnesium alloy using running water, the spray washing time is 300S；
Step 2: the magnesium alloy after washing is dried；
Electrolytic degreasing is carried out Step 3: dried magnesium alloy is placed in electroplating solution, the electrolytic degreasing time is 800S, described
The flow velocity of electroplating solution is 50L/min, and electroplating solution temperature is 60 DEG C, and each composition quality number is in the electroplating solution：Table
5 parts of face activating agent, 40 parts of sodium hydroxide, 50 parts of running water；
Step 4: it is to magnesium alloy progress spray washing, spray washing time by the running water used for magnesium alloy after electrolytic degreasing
500S。
Wherein, the step（2）In degreasing agent include the raw materials of following parts by weight：50 parts of hydrochloric acid, 5 parts of acetic acid, fluorine
Change 8 parts of hydrogen ammonium, 1 part of sodium nitrate, 2 parts of zinc sulfate, 0.5 part of hexamethylene, 0.4 part of fluorinated hydrocarbon solvent, 0.02 part of surfactant.
Wherein, the surfactant is neopelex.
Wherein, the step（2）In antirust paint include the raw materials of following parts by weight：50 parts of pitch, 1 part of plasticizer,
34 parts of polycarbonate, 8 parts of barium sulfate, 1.2 parts of diatomite, 6 parts of solvent.
Wherein, the step（7）In the colored varnish include the raw materials of following parts by weight：35 parts of acrylic resin, hydroxyl
15 parts of acrylic resin, 3.6 parts of nano silicon, 4 parts of coalescents.
Wherein, the drying condition in the step 2 is under the conditions of 140 DEG C, dries 15min.
Wherein, the coalescents are propylene glycol methyl ether acetate.
Embodiment 2
A kind of Mg alloy surface anticorrosive treatment process that the present embodiment provides, described Mg alloy surface anticorrosive treatment process
Comprise the following steps：
（1）Surface preparation：Mg alloy surface is pre-processed；
（2）Degreasing：Pretreated magnesium alloy is put into degreasing agent, soak degreasing 3min, it is 45 DEG C to control temperature；
（3）Cleaning：By the step（2）Running water used for magnesium alloy after middle degreasing rinses 2 times, washes away the degreasing of Mg alloy surface
Agent；
（4）Dry：By the step（3）Magnesium alloy after middle cleaning is put into baking oven and dried, and drying temperature is 60 DEG C, and the time is
15min；
（5）Rust prevention by applying liquid material paint：To the step（4）In dried magnesium alloy surface spraying antirust paint, the antirust of the spraying
Paint thickness and be more than 50 μm；
（6）Drying：Magnesium alloy after rust prevention by applying liquid material paint is put into drying in oven, drying temperature is 60 DEG C, time 15min；
（7）Spray the colored varnish：To the step（6）The magnesium alloy surface spraying colored varnish after middle processing, and the colored varnish
Thickness is more than 25 μm；
（8）Baking：By the step（7）The magnesium alloy of the middle spraying colored varnish toasts 30min under the conditions of being placed in 80 DEG C, you can.
Wherein, the step（1）Middle pretreatment comprises the following specific steps that：
Step 1: carrying out spray washing to magnesium alloy using running water, the spray washing time is 250S；
Step 2: the magnesium alloy after washing is dried；
Electrolytic degreasing is carried out Step 3: dried magnesium alloy is placed in electroplating solution, the electrolytic degreasing time is 600S, described
The flow velocity of electroplating solution is 60L/min, and electroplating solution temperature is 50 DEG C, and each composition quality number is in the electroplating solution：Table
8 parts of face activating agent, 36 parts of sodium hydroxide, 55 parts of running water；
Step 4: it is to magnesium alloy progress spray washing, spray washing time by the running water used for magnesium alloy after electrolytic degreasing
350S。
Wherein, the step（2）In degreasing agent include the raw materials of following parts by weight：30 parts of hydrochloric acid, 10 parts of acetic acid, fluorine
Change 3 parts of hydrogen ammonium, 3 parts of sodium nitrate, 0.5 part of zinc sulfate, 2 parts of hexamethylene, 0.05 part of fluorinated hydrocarbon solvent, 0.2 part of surfactant.
Wherein, the surfactant is neopelex.
Wherein, the step（2）In antirust paint include the raw materials of following parts by weight：30 parts of pitch, 8 parts of plasticizer,
19 parts of polycarbonate, 12 parts of barium sulfate, 0.3 part of diatomite, 13 parts of solvent.
Wherein, the step（7）In the colored varnish include the raw materials of following parts by weight：25 parts of acrylic resin, hydroxyl
25 parts of acrylic resin, 1.4 parts of nano silicon, 6 parts of coalescents.
Wherein, the drying condition in the step 2 is under the conditions of 100 DEG C, dries 20min.
Wherein, the coalescents are propylene glycol methyl ether acetate.
Embodiment 3
A kind of Mg alloy surface anticorrosive treatment process that the present embodiment provides, described Mg alloy surface anticorrosive treatment process
Comprise the following steps：
（1）Surface preparation：Mg alloy surface is pre-processed；
（2）Degreasing：Pretreated magnesium alloy is put into degreasing agent, soak degreasing 4min, it is 35 DEG C to control temperature；
（3）Cleaning：By the step（2）Running water used for magnesium alloy after middle degreasing rinses 3 times, washes away the degreasing of Mg alloy surface
Agent；
（4）Dry：By the step（3）Magnesium alloy after middle cleaning is put into baking oven and dried, and drying temperature is 70 DEG C, and the time is
9min；
（5）Rust prevention by applying liquid material paint：To the step（4）In dried magnesium alloy surface spraying antirust paint, the antirust of the spraying
Paint thickness and be more than 50 μm；
（6）Drying：Magnesium alloy after rust prevention by applying liquid material paint is put into drying in oven, drying temperature is 70 DEG C, time 12min；
（7）Spray the colored varnish：To the step（6）The magnesium alloy surface spraying colored varnish after middle processing, and the colored varnish
Thickness is more than 25 μm；
（8）Baking：By the step（7）The magnesium alloy of the middle spraying colored varnish toasts 22min under the conditions of being placed in 110 DEG C, you can.
Wherein, the step（1）Middle pretreatment comprises the following specific steps that：
Step 1: carrying out spray washing to magnesium alloy using running water, the spray washing time is 270S；
Step 2: the magnesium alloy after washing is dried；
Electrolytic degreasing is carried out Step 3: dried magnesium alloy is placed in electroplating solution, the electrolytic degreasing time is 600-800S,
The flow velocity of the electroplating solution is 55L/min, and electroplating solution temperature is 58 DEG C, each composition quality number in the electroplating solution
For：6 parts of surfactant, 9 parts of sodium hydroxide, 52 parts of running water；
Step 4: it is to magnesium alloy progress spray washing, spray washing time by the running water used for magnesium alloy after electrolytic degreasing
370S。
Wherein, the step（2）In degreasing agent include the raw materials of following parts by weight：40 parts of hydrochloric acid, 7 parts of acetic acid, fluorine
Change 5 parts of hydrogen ammonium, 2 parts of sodium nitrate, 0.9 part of zinc sulfate, 1.5 parts of hexamethylene, 0.2 part of fluorinated hydrocarbon solvent, 0.09 part of surfactant.
Wherein, the surfactant is neopelex.
Wherein, the step（2）In antirust paint include the raw materials of following parts by weight：44 parts of pitch, 5 parts of plasticizer,
21 parts of polycarbonate, 9 parts of barium sulfate, 0.6 part of diatomite, 8 parts of solvent.
Wherein, the step（7）In the colored varnish include the raw materials of following parts by weight：27 parts of acrylic resin, hydroxyl
17 parts of acrylic resin, 1.5 parts of nano silicon, 5 parts of coalescents.
Wherein, the drying condition in the step 2 is under the conditions of 120 DEG C, dries 17min.
Wherein, the coalescents are propylene glycol methyl ether acetate.
The specific embodiment of the present invention is described above.It is to be appreciated that the invention is not limited in above-mentioned
Particular implementation, those skilled in the art can make various deformations or amendments within the scope of the claims, this not shadow
Ring the substantive content of the present invention.
Claims (8)
- A kind of 1. Mg alloy surface anticorrosive treatment process, it is characterised in that：Described Mg alloy surface anticorrosive treatment process Comprise the following steps：（1）Surface preparation：Mg alloy surface is pre-processed；（2）Degreasing：Pretreated magnesium alloy is put into degreasing agent, soak degreasing 3-4min, it is 20-45 DEG C to control temperature；（3）Cleaning：By the step（2）Running water used for magnesium alloy after middle degreasing rinses 2-5 times, washes away the de- of Mg alloy surface Fat agent；（4）Dry：By the step（3）Magnesium alloy after middle cleaning is put into baking oven and dried, and drying temperature is 60-170 DEG C, when Between be 5-15min；（5）Rust prevention by applying liquid material paint：To the step（4）In dried magnesium alloy surface spraying antirust paint, the antirust of the spraying Paint thickness and be more than 50 μm；（6）Drying：Magnesium alloy after rust prevention by applying liquid material paint is put into drying in oven, drying temperature is 60-80 DEG C, time 10- 15min；（7）Spray the colored varnish：To the step（6）The magnesium alloy surface spraying colored varnish after middle processing, and the colored varnish Thickness is more than 25 μm；（8）Baking：By the step（7）The magnesium alloy of the middle spraying colored varnish toasts 20-30min under the conditions of being placed in 80-150 DEG C, .
- A kind of 2. Mg alloy surface anticorrosive treatment process according to claim 1, it is characterised in that：The step（1） Middle pretreatment comprises the following specific steps that：Step 1: carrying out spray washing to magnesium alloy using running water, the spray washing time is 250-300S；Step 2: the magnesium alloy after washing is dried；Electrolytic degreasing is carried out Step 3: dried magnesium alloy is placed in electroplating solution, the electrolytic degreasing time is 600-800S, The flow velocity of the electroplating solution is 50-60L/min, and electroplating solution temperature is 50-60 DEG C, each composition quality in the electroplating solution Number is：Surfactant 5-8 parts, sodium hydroxide 36-40 parts, running water 50-55 parts；Step 4: it is to magnesium alloy progress spray washing, spray washing time by the running water used for magnesium alloy after electrolytic degreasing 350-500S。
- A kind of 3. Mg alloy surface anticorrosive treatment process according to claim 1, it is characterised in that：The step（2） In degreasing agent include the raw materials of following parts by weight：Hydrochloric acid 30-50 parts, acetic acid 5-10 parts, ammonium acid fluoride 3-8 parts, sodium nitrate 1-3 parts, zinc sulfate 0.5-2 parts, hexamethylene 0.5-2 parts, fluorinated hydrocarbon solvent 0.05-0.4 parts, surfactant 0.02-0.2 parts.
- A kind of 4. Mg alloy surface anticorrosive treatment process according to claim 3, it is characterised in that：The surface-active Agent is neopelex.
- A kind of 5. Mg alloy surface anticorrosive treatment process according to claim 1, it is characterised in that：The step（2） In antirust paint include the raw materials of following parts by weight：Pitch 30-50 parts, plasticizer 1-8 parts, polycarbonate 19-34 parts, sulfuric acid Barium 8-12 parts, diatomite 0.3-1.2 parts, solvent 6-13 parts.
- A kind of 6. Mg alloy surface anticorrosive treatment process according to claim 1, it is characterised in that：The step（7） In the colored varnish include the raw materials of following parts by weight：Acrylic resin 25-35 parts, Hydroxylated acrylic resin 15-25 parts, nanometer Silica 1 .4-3.6 parts, coalescents 4-6 parts.
- A kind of 7. Mg alloy surface anticorrosive treatment process according to claim 2, it is characterised in that：In the step 2 Drying condition be under the conditions of 100-140 DEG C, dry 15-20min.
- A kind of 8. Mg alloy surface anticorrosive treatment process according to claim 6, it is characterised in that：The coalescents For propylene glycol methyl ether acetate.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710647750.1A CN107362957A (en) | 2017-08-01 | 2017-08-01 | A kind of Mg alloy surface anticorrosive treatment process |
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| CN201710647750.1A CN107362957A (en) | 2017-08-01 | 2017-08-01 | A kind of Mg alloy surface anticorrosive treatment process |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108838050A (en) * | 2018-07-16 | 2018-11-20 | 苏州艾斯肯机电设备有限公司 | A kind of electromechanics product anticorrosive treatment process |
| CN115957953A (en) * | 2022-12-30 | 2023-04-14 | 大亚车轮制造有限公司 | Lettering and color registering process for wheel |
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| CN103013334A (en) * | 2012-11-28 | 2013-04-03 | 天长市开林化工有限公司 | Asphalt anticorrosive paint applied to hull bottoms |
| CN104001659A (en) * | 2014-06-16 | 2014-08-27 | 滁州市宏源喷涂有限公司 | Spraying method of aluminum alloy sections |
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| CN105586615A (en) * | 2016-01-21 | 2016-05-18 | 华南理工大学 | Method for pulse pre-nickeling of surface of magnesium alloy |
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| CN104001659A (en) * | 2014-06-16 | 2014-08-27 | 滁州市宏源喷涂有限公司 | Spraying method of aluminum alloy sections |
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| CN108838050A (en) * | 2018-07-16 | 2018-11-20 | 苏州艾斯肯机电设备有限公司 | A kind of electromechanics product anticorrosive treatment process |
| CN115957953A (en) * | 2022-12-30 | 2023-04-14 | 大亚车轮制造有限公司 | Lettering and color registering process for wheel |
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