CN1634668A - Powder injection process for machining metal parts - Google Patents
Powder injection process for machining metal parts Download PDFInfo
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- CN1634668A CN1634668A CN 200310116083 CN200310116083A CN1634668A CN 1634668 A CN1634668 A CN 1634668A CN 200310116083 CN200310116083 CN 200310116083 CN 200310116083 A CN200310116083 A CN 200310116083A CN 1634668 A CN1634668 A CN 1634668A
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Abstract
This invention relates to a metal parts process powder spray method, which comprises the following steps: removing oxide peel and welding scar by means of parts throwing; adopting alkalescence degrease agent under 50-60DEG C to process the parts for one to three minutes and removing mineral oil then washing with normal temperature; adopting surface adjusting agent for surface adjusting and adopting phosphor liquid to process the metal surface for two to three minutes under 45-50DEG C and forming a loose substances to build adhesion force and then washing with water of normal temperature and removing water by drying; coating plating mock powder to the parts surface and solidifying for ten to twenty minutes under 180-200DEG C and voltage of 40-45 kv.
Description
Technical field
The present invention relates to the process of surface treatment technology of metallic element, particularly relate to a kind of imitative plating powder injection process; Specifically, relate to and a kind ofly can directly metallic element be adopted special imitative electroplating powder powder material and obstructed overpickling rust cleaning, just can reach or near the requirement of electroplating technology and the surface treatment process method of effect.
Background technology
At present, the component that use on some machines or the equipment are in order to prolong its work-ing life and to strengthen result of use, and major part will be carried out surface treatment, or electroplate, or coating, with regard to plating, the plated item smooth surface, corrosion-resistant, be a kind of common method of surface-treated.Before plating, generally to handle to machined part, as: all to pass through oil removing and rust cleaning the plated item on the motorcycle, it generally is oil removing in alkali lye, in acid solution, eliminate rust, or in a kind of mixing solutions made from etching reagent and emulsifying agent, carry out oil removing and rust cleaning simultaneously, after oil removing, the rust cleaning, in order to remove residual greasy dirt and acid, also to carry out weak corrosion treatment, wash then, will be after the washing through three nickel plating, a chromium plating, or a copper facing, secondary nickel plating, a chromium plating, just can reach galvanized effect.Though traditional electroplating technology comparative maturity has many drawbacks: complex procedures, cost height, long processing time is for the component of processing on streamline, because the long-time processing of its certain component has prolonged the whole process-cycle; In addition, when carrying out pickling, be easy to generate excessive corrosion; And the corrodibility of pickle solution is big, and metal nickel chromium triangle toxicity is big, can damage to operator, and processing solution later pollutes environment easily, if discharging again after it is processed, cost of processing is very high.Therefore, pursuit environmental protection, green complete processing are industrial trends of the times at present.
Summary of the invention
The technical problem to be solved in the present invention has provided a kind of powder injection process method of processing metal component, the method of the invention operation is simple, process period short, and environmental pollution is little, toxicity is little, cost is low, is a kind of novel process of dusting that is particularly suitable for processing motorcycle or other product iron and steel parts.
The present invention is achieved through the following technical solutions:
Adopt the ball blast mode to remove oxide skin, crator, the mineral oil of steel surface to metallic element;
Adopt alkaline defatting agent, under 50-60 ℃ condition, to metallic element spray or dipping 1-3 minute, normal temperature washing then, wherein, described alkaline defatting agent comprises: NaOH or NaHCO
3Deng alkaline matter, tensio-active agent, additive, its proportionlity is: in per 100 parts, alkaline matter is 70-80 part, tensio-active agent is 15-30 part, additive is 4-6 part, and it joins groove concentration is 0.5-8%, and the described groove concentration of joining is working concentration behind the solid-not-fat agent thin up;
Adopt surface conditioner, to metallic element spray or dipping, carry out surface adjustment, processing by this step, to eliminate the ununiformity that in the processes such as alkali lye oil removing or assistance rust cleaning condition of surface is caused, make the metallic surface form a large amount of superfine nucleus of crystals, make the phosphatize phosphate coat that forms later even, fine and close, can improve simultaneously the corrosion resistance of phosphatize phosphate coat self
Wherein, described surface conditioner is the organic titanic compound aqueous solution of 1%-3% or at the colloid titanium phosphate aqueous solution of 0.08%-0.5%.
The described colloid titanium phosphate aqueous solution comprises colloid titanium phosphate, additive and water, and wherein, the proportionlity of colloid titanium phosphate and additive is: in per 100 parts, the colloid titanium phosphate is 75-85 part, and additive is 15-25 part; It joins groove concentration between 0.08%-0.5%; Optimum concn is 0.09-0.2%; PH value is controlled between the 8.5-10, wherein, joins groove concentration and be the working concentration after solid surface is adjusted the agent thin up.
Adopt iron-manganese-zinc phosphatization liquid, under 45-50 ℃ condition, to metallic element spray or dipping 2-3 minute, generate on the metallic element surface one deck loose to strengthen the material of sticking power, i.e. phosphatize phosphate coat, normal temperature washing again, drying is removed moisture content,
Wherein, described phosphatization liquid comprises host, promotor and middle mixture, and host is phosphoric acid zinc oxide or nickel salt or other salts; Promotor is nitrite and additive; Middle mixture is alkaline matter such as NaOH etc.; Its three's proportionlity is: in per 100 parts, host is 62-77 part, and promotor is 22-36 part, middle mixture is 1-3 part, the groove concentration of joining of phosphatization liquid is 1-5%, and optimum concn is 2.5-3.5%, and the described groove concentration of joining is working concentration behind above three kinds of material thin ups;
To imitate and electroplate the powder applying coating to piece surface, then when temperature was 105-200 ℃, voltage solidified 10-20 minute under 40 kilovolts-45 kilovolts condition.
Above-mentioned application pattern is electrostatic spraying or manually aerial spraying or Airless spraying or brushing.
Described imitative plating powder is the powder that adds minute surface silver aluminium pigment in the pure polyester of weather-proof thermoset.Through above-mentioned processing, help the evenly distributed of silver-colored aluminium pigment, form the coating of the smooth plentiful similar electroplating effect of one deck on the metallic element surface.
The imitative powder of electroplating specifically comprises: alkyd resin, Resins, epoxy, auxiliary agent, aluminium pigment, and its proportionlity is: alkyd resin is 60-75 part, and Resins, epoxy is 12-16 part, and auxiliary agent is 7-9 part, and aluminium pigment is 9-15 part.
Then carry out Lacquer finish with transparent powder again and handle, concrete processing mode is: adopt Clear powder coatings to spread on the imitative electroplated coating, be solidified into slick filming then under 180-200 ℃ condition.Can reach better anti-hand perspiration effect like this.
Relatively the method for the invention and present technology are as can be known, the method of the invention does not need to eliminate rust in acidic solution, reduced and after rust cleaning, carried out basic solution neutral step again, not only reduced processing step, and reduced the pollution of acidic solution after the rust cleaning and the basic solution after the neutralization environment; In the present invention, method with spray coating powder paint replaces nickel plating, chromium or copper, replaced a plurality of step of the prior art with this processing step, operation is simple, has not only reduced processing step, and has significantly reduced process period, without metallic elements such as nickel, chromium, environmental pollution is little, toxicity is little, cost is low, is particularly suitable for motorcycle or other mechanically original steel electroplating spare, as the environmental protection technology of electroplating technologies such as back bar, back shelf, collision bumper; The present invention can directly adopt metallic element special imitative electroplating powder powder material, and does not need acid pickling and rust removing, just can reach or near the requirement and the effect of electroplating technology.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
The powder injection process method of processing metal component of the present invention, adopt ball blast mode degreasing and rust removal chemical degreasing then, table is transferred phosphatization then, to imitate the electroplating powder powder paint spraying at last to piece surface, solidify, finish the dusting of worker's metallic element, it is reached or near the requirement and the effect of electroplating technology.
Specifically, referring to Fig. 1, comprise the steps:
At first, metallic element is carried out degreasing and rust removal, the method of its degreasing and rust removal adopts the ball blast mode: adopting diameter is the shot of 0.1-1.0mm, preferred diameter is 0.5-0.7mm, ball blast 1-5 minute, with oxide skin, the crator of removing the metallic element surface, residual acid solution and has been strengthened the surface strength of part again to the corrosion of metallic element body in the time of can avoiding tradition to carry out pickling like this.
Then, carry out chemical degreasing, adopt alkaline defatting agent solution to remove metallic element mineral oil, when temperature is 50-60 ℃, metallic element to be handled 1-3 minute, its processing mode can be spray or dipping, remove the greasy dirt on metallic element surface, normal temperature washing then.Wherein, the solute of described alkaline defatting agent solution comprises: NaOH or NaHCO
3Deng alkaline matter, tensio-active agent, additive, its proportionlity is: in per 100 parts, alkaline matter is 70-80 part, tensio-active agent is 15-30 part, and additive is 4-6 part, and it joins groove concentration is 0.5-8%, optimum concn is 1-5%, and degreasing point is 1.2-1.6pt.Wherein, join working concentration behind groove concentration-solid-not-fat agent thin up.
Then, carry out surface adjustment, adopt surface conditioner, used surface conditioner is that a kind of concentration is 2% the organic titanic compound aqueous solution, formed a large amount of netted titanium nuclei of crystallization on the metallic element surface to eliminate the ununiformity that in the processes such as alkali lye oil removing or assistance rust cleaning condition of surface is caused in room temperature treatment 0.5-1 minute;
Surface conditioner also can be the colloid titanium phosphate aqueous solution of 0.08%-0.5%.Concrete, comprising colloid titanium phosphate and additive, its proportionlity is: in per 100 parts, the colloid titanium phosphate is 75-85 part, and additive is 15-25 part; It joins groove concentration between 0.08%-0.5%; Optimum concn is 0.09-0.2%; PH value is controlled between the 8.5-10.Wherein, joining groove concentration is working concentration after solid surface is adjusted the agent thin up.
Carry out phosphatization again, employing iron-manganese-zinc phosphatization liquid when temperature is 45-50 ℃, was handled 2-3 minute metallic element, and its processing mode can be spray or impregnation method, generates the loose material with enhancing sticking power of one deck, i.e. phosphatize phosphate coat at workpiece surface; Described phosphatization liquid is made up of 3 parts: host is phosphoric acid zinc oxide or nickel salt or other salts; Promotor is nitrite and additive; Middle mixture is alkaline matter such as NaOH etc.; Its three's proportionlity is: in per 100 parts, host is 62-77 part, and promotor is 22-36 part, middle mixture is 1-3 part, and the groove concentration of joining of phosphatization liquid is 1-5%, and optimum concn is 2.5-3.5%, controlled variable: free acid point 0.6-1.0pt, total acid point 16-26pt promotes some 2.0-4.0pt.Wherein, joining groove concentration is working concentration behind above three kinds of material thin ups.
Afterwards, normal temperature washing again is 100-200 ℃ in temperature, preferred 120-140 ℃, dry 5-20 minute, preferred 10 minutes, carries out drying and removes moisture content.
Then, the employing electrostatic gun to the metal parts surface, is 105-200 ℃ in temperature with a kind of special imitative electroplating powder powder paint spraying, and preferred 180 ℃, voltage solidified 10-20 minute under 40 kilovolts-45 kilovolts condition, preferred 15 minutes.Under this Best Curing, it is evenly distributed to help aluminium pigment, forms the coating of the smooth plentiful similar electroplating effect of one deck on metallic element surface.
At last, in order to reach better anti-hand perspiration effect, carry out Lacquer finish with transparent powder again and handle, processing mode is: adopt Clear powder coatings to spread on the imitative electroplated coating, be solidified into slick filming then under 180-200 ℃ condition.
Wherein, the special imitative powder coating of electroplating constitutes by add minute surface silver aluminium pigment in the pure polyester of weather-proof thermoset, concrete, the imitative composition of electroplating powder comprises: alkyd resin, Resins, epoxy, auxiliary agent, aluminium pigment, its proportionlity is: in per 100 parts, alkyd resin is 60-75 part, and Resins, epoxy is 12-16 part, auxiliary agent is 7-9 part, and aluminium pigment is 9-15 part.This special minute surface silver aluminium pigment is structure in the form of sheets, and handle through the metal effect surface coating on the surface, under specified promoter effect, can evenly align, thereby form film into mirror effect.
After metal parts carried out aforesaid powder injection process and electroplating, the gained data are as shown in the table:
Table 1 is the effect comparison table in kind of electroplated component and imitative electroplated component.
Table 1
As can be seen from the above table, component are handled, adopted the method for the invention not pollute basically, cost is low, and erosion resistance is up to 600hr, and the pollution of electroplating technique method is big, cost is high and adopt, the processing of erosion resistance not as adopting the present invention to carry out.In addition, on performances such as gloss, hardness, shock resistance, adopt the method for the invention and adopt electric plating method to be more or less the same basically, can touch the mark fully.This shows, the method of the invention environmental pollution is little, toxicity is little, cost is low, can reach or near the requirement and the effect of electroplating technology, and significantly reduced process period, be particularly suitable for motorcycle or other mechanically original steel electroplating spare, as the environmental protection technology of electroplating technologies such as back bar, back shelf, collision bumper.
It should be noted last that: above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although the present invention is had been described in detail with reference to the foregoing description, those of ordinary skill in the art is to be understood that: still can make amendment or be equal to replacement the present invention, and not breaking away from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (10)
1, a kind of powder injection process method of processing metal component is characterized in that, comprising:
Adopt the ball blast mode to remove oxide skin, the crator of metallic surface to metallic element;
Adopt alkaline defatting agent, under 50-60 ℃ condition, metallic element was handled 1-3 minute, remove the mineral oil of metallic surface, normal temperature washing then, wherein, described alkaline defatting agent comprises: alkaline matter, tensio-active agent, additive, its proportionlity is: in per 100 parts, alkaline matter is 70-80 part, and tensio-active agent is 15-30 part, and additive is 4-6 part, it joins groove concentration is 0.5-8%, and the described groove concentration of joining is working concentration behind the solid-not-fat agent thin up;
Adopt phosphatization liquid, under 45-50 ℃ condition, metallic element was handled 2-3 minute, generated the loose material of one deck on the metallic element surface, i.e. phosphatize phosphate coat with enhancing sticking power, normal temperature washing again, drying is removed moisture content, and wherein, described phosphatization liquid is iron-manganese-zinc phosphatization liquid, comprise host, promotor and middle mixture, host is phosphoric acid zinc oxide or nickel salt; Promotor is the mixture of nitrite and additive; Middle mixture is an alkaline matter; Its three's proportionlity is: in per 100 parts, host is 62-77 part, and promotor is 22-36 part, middle mixture is 1-2 part, the groove concentration of joining of phosphatization liquid is 1-5%, and optimum concn is 2.5-3.5%, and the described groove concentration of joining is working concentration behind above three kinds of material thin ups;
To imitate the electroplating powder powder paint spraying to piece surface, then when temperature is 105-200 ℃, voltage solidified 10-20 minute under 40 kilovolts-45 kilovolts condition, and wherein, described imitative plating powder is the powder that adds minute surface silver aluminium pigment in the pure polyester of weather-proof thermoset.
2, the powder injection process method of processing metal component according to claim 1, it is characterized in that, before employing iron-manganese-zinc phosphatization liquid carries out phosphatization, metallic element is carried out surface adjustment, adopt surface conditioner spray or dipping, to eliminate the ununiformity that in the processes such as alkali lye oil removing or assistance rust cleaning the metallic surface is caused, make the metallic surface form a large amount of superfine nucleus of crystals, wherein, described surface conditioner is the organic titanic compound aqueous solution of 1%-3% or the colloid titanium phosphate aqueous solution of 0.08%-0.5%.
3, the powder injection process method of processing metal component according to claim 2, it is characterized in that, the described colloid titanium phosphate aqueous solution comprises colloid titanium phosphate, additive and water, wherein, the proportionlity of colloid titanium phosphate and additive is: in per 100 parts, the colloid titanium phosphate is 75-85 part, and additive is 15-25 part; It joins groove concentration between 0.08%-0.5%; Optimum concn is 0.09-0.2%; PH value is controlled between the 8.5-10, wherein, joins groove concentration and be the working concentration after solid surface is adjusted the agent thin up.
According to the powder injection process method of claim 1 or 2 or 3 described processing metal component, it is characterized in that 4, the used shot diameter of ball blast mode degreasing and rust removal is 0.1-1.0mm, the ball blast time is 1-5 minute.
According to the powder injection process method of claim 1 or 2 or 3 described processing metal component, it is characterized in that 5, the mode that adopts alkaline defatting agent that metallic element is handled is spray or dipping.
According to the powder injection process method of claim 1 or 2 or 3 described processing metal component, it is characterized in that 6, the mode that adopts iron-manganese-zinc phosphatization liquid that metallic element is handled is spray or dipping.
According to the powder injection process method of claim 1 or 2 or 3 described processing metal component, it is characterized in that 7, metallic element is under 100-200 ℃ the condition dry 5-20 minute in temperature through phosphatization, washing back.
8, according to the powder injection process method of claim 1 or 2 or 3 described processing metal component, it is characterized in that, is electrostatic spraying with imitative electroplating powder powder paint spraying to the mode of piece surface.
9, according to the powder injection process method of claim 1 or 2 or 3 described processing metal component, it is characterized in that, described imitative plating powder specifically comprises: alkyd resin, Resins, epoxy, auxiliary agent, aluminium pigment, its proportionlity is: in per 100 parts, alkyd resin is 60-75 part, Resins, epoxy is 12-16 part, and auxiliary agent is 7-9 part, and aluminium pigment is 9-15 part.
10, according to the powder injection process method of claim 1 or 2 or 3 described processing metal component, it is characterized in that, to imitate the electroplating powder powder paint spraying to the metal parts surface, after the curing, carrying out Lacquer finish handles, concrete processing mode is: adopt Clear powder coatings to spread on the imitative electroplated coating again, be solidified into slick filming then under 180-200 ℃ condition, described transparent powder is the pure polyester of weather-proof thermoset.
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| CNB2003101160832A CN100381214C (en) | 2003-12-31 | 2003-12-31 | Powder injection process for machining metal parts |
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| CNB2003101160832A CN100381214C (en) | 2003-12-31 | 2003-12-31 | Powder injection process for machining metal parts |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101899656A (en) * | 2010-08-03 | 2010-12-01 | 南京宏博环保实业有限公司 | Preparation method of antiseptic anaerobic reaction-pot steel plate |
| CN102500523A (en) * | 2011-09-23 | 2012-06-20 | 快意电梯有限公司 | Low-friction spraying process for escalator skirt board |
| CN102601025A (en) * | 2012-03-23 | 2012-07-25 | 重庆大江美利信压铸有限责任公司 | Powder spraying technique for aluminum die-cast alloy part |
| CN104874535A (en) * | 2015-05-11 | 2015-09-02 | 苏州瑞钰特自动化科技有限公司 | Workpiece housing coating process flow |
| CN105772379A (en) * | 2016-05-04 | 2016-07-20 | 太仓吉达喷涂有限公司 | Electrostatic spraying technology for surface of special-shaped metal part |
| CN109382298A (en) * | 2018-10-22 | 2019-02-26 | 广东西屋康达空调有限公司 | A kind of surface preservative treatment technique of machine unit shell |
| CN111469042A (en) * | 2020-04-16 | 2020-07-31 | 浙江西亚特电子材料有限公司 | Gas cylinder processing system and processing method for ultrapure gas |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04168163A (en) * | 1990-10-31 | 1992-06-16 | Aisin Chem Co Ltd | Design coating composition |
| JPH04214779A (en) * | 1990-12-11 | 1992-08-05 | Ishihara Sangyo Kaisha Ltd | Coating composition |
| CN1077730A (en) * | 1993-03-13 | 1993-10-27 | 王喜献 | Polyester powder reflectorized coating and production method thereof |
| CN1044376C (en) * | 1993-05-19 | 1999-07-28 | 杨家峰 | Silver-aluminium powder paint and producing process therefor |
| JPH06346007A (en) * | 1993-06-04 | 1994-12-20 | Nippon Paint Co Ltd | Glittering coating composition and method for forming glittering film |
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2003
- 2003-12-31 CN CNB2003101160832A patent/CN100381214C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101899656A (en) * | 2010-08-03 | 2010-12-01 | 南京宏博环保实业有限公司 | Preparation method of antiseptic anaerobic reaction-pot steel plate |
| CN102500523A (en) * | 2011-09-23 | 2012-06-20 | 快意电梯有限公司 | Low-friction spraying process for escalator skirt board |
| CN102500523B (en) * | 2011-09-23 | 2013-11-20 | 快意电梯股份有限公司 | Low-friction spraying process for escalator skirt board |
| CN102601025A (en) * | 2012-03-23 | 2012-07-25 | 重庆大江美利信压铸有限责任公司 | Powder spraying technique for aluminum die-cast alloy part |
| CN102601025B (en) * | 2012-03-23 | 2013-12-25 | 重庆大江美利信压铸有限责任公司 | Powder spraying technique for aluminum die-cast alloy part |
| CN104874535A (en) * | 2015-05-11 | 2015-09-02 | 苏州瑞钰特自动化科技有限公司 | Workpiece housing coating process flow |
| CN105772379A (en) * | 2016-05-04 | 2016-07-20 | 太仓吉达喷涂有限公司 | Electrostatic spraying technology for surface of special-shaped metal part |
| CN109382298A (en) * | 2018-10-22 | 2019-02-26 | 广东西屋康达空调有限公司 | A kind of surface preservative treatment technique of machine unit shell |
| CN111469042A (en) * | 2020-04-16 | 2020-07-31 | 浙江西亚特电子材料有限公司 | Gas cylinder processing system and processing method for ultrapure gas |
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| CN100381214C (en) | 2008-04-16 |
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