CN107670941A - A kind of method for lifting stamping parts resistance to chemical corrosion - Google Patents

A kind of method for lifting stamping parts resistance to chemical corrosion Download PDF

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Publication number
CN107670941A
CN107670941A CN201710732536.6A CN201710732536A CN107670941A CN 107670941 A CN107670941 A CN 107670941A CN 201710732536 A CN201710732536 A CN 201710732536A CN 107670941 A CN107670941 A CN 107670941A
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China
Prior art keywords
parts
liquid
stamping parts
chemical corrosion
resistance
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Pending
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CN201710732536.6A
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Chinese (zh)
Inventor
周正明
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Hefei Zhengming Machinery Co Ltd
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Hefei Zhengming Machinery Co Ltd
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Priority to CN201710732536.6A priority Critical patent/CN107670941A/en
Publication of CN107670941A publication Critical patent/CN107670941A/en
Pending legal-status Critical Current

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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
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • 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
    • 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
    • B05D7/24—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 for applying particular liquids or other fluent materials
    • 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
    • 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
    • B05D7/56—Three layers or more
    • B05D7/58—No clear coat specified
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D125/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Coating compositions based on derivatives of such polymers
    • C09D125/18—Homopolymers or copolymers of aromatic monomers containing elements other than carbon and hydrogen
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D133/00—Coating compositions based on homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/002—Priming paints
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/08—Anti-corrosive paints
    • 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
    • B05D2451/00—Type of carrier, type of coating (Multilayers)
    • 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
    • B05D2502/00—Acrylic polymers
    • 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
    • B05D2518/00—Other type of polymers
    • 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
    • B05D2518/00—Other type of polymers
    • B05D2518/10—Silicon-containing polymers
    • 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
    • B05D2602/00—Organic fillers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/0091—Complexes with metal-heteroatom-bonds

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

The present invention discloses a kind of method for lifting stamping parts resistance to chemical corrosion, including following operating procedure：（1）Stamping parts surface treatment is clean, bottom liquid is then uniformly coated thereon, the dosage of bottom liquid is 250 350ml/m2；（2）After coating the 15min of bottom liquid 10, uniformly varnished with lacquer on stamping parts surface, the thickness of smearing is 0.3 0.5mm；（3）Paint after 26 38min, reinforcement liquid is uniformly coated thereon, strengthen the 80ml/m of dosage 60 of liquid2.The treated stamping parts of the present invention, its surface corrosion resistance can be lifted greatly, simple to operate, and cost is cheap.

Description

A kind of method for lifting stamping parts resistance to chemical corrosion
Technical field
The invention belongs to stamping parts technical field of surface, and in particular to one kind lifting stamping parts resistance to chemical corrosion Method.
Background technology
Stamping parts mainly by metal or non-metal sheet, by the pressure of forcing press, passes through diel punch process Shaping, it mainly has following characteristics：（1）Stamping parts be on the premise of material consumption is little, it is stamped to manufacture, its Pts wt is light, good rigidity, and plate, after plastic deformation, the institutional framework of metal inside is improved, and makes stamping parts Intensity increases；（2）With module size uniformity, there is preferable interchangeability, it is not necessary to which further machining can expire Sufficient in general assembly and use requirements；（3）Stamping parts is in punching course, because the surface of material is not damaged, therefore has preferably Surface quality, smooth in appearance is attractive in appearance.But presently commercially available common stamping parts, its surface resistance to chemical corrosion is poor, leads Cause its service life shorter.
The content of the invention
In order to solve the above-mentioned technical problem, the present invention provides a kind of method for lifting stamping parts resistance to chemical corrosion.
The present invention is achieved by the following technical solutions.
A kind of method for lifting stamping parts resistance to chemical corrosion, including following operating procedure：
（1）Stamping parts surface treatment is clean, bottom liquid is then uniformly coated thereon, the dosage of bottom liquid is 250-350ml/ m2, its midsole liquid is made up of the component of following parts by weight：Methylpropene sodium sulfonate 22-28 parts, 4- halogen trimethylsilylbenzene ethene 31- 35 parts, sebacate salt 19-22 parts, 1- sodium heptanesulfonate 11-15 parts, water 250-300 parts；
（2）After coating bottom liquid 10-15min, uniformly being varnished with lacquer on stamping parts surface, the thickness of smearing is 0.3-0.5mm, its Middle paint is made up of the component of following parts by weight：Acrylic emulsion 50-60 parts, cyanurate melamine ester 11-16 parts, polyethylene Base imidazoles 3-6 parts, pigment 10-15 parts；
（3）Paint after 26-38min, reinforcement liquid is uniformly coated thereon, strengthens the dosage 60-80ml/m of liquid2, wherein strengthening Liquid is made up of the component of following parts by weight：Kayexalate 20-30 parts, aluminium isopropoxide 10-15 parts, absolute ethyl alcohol 100-150 parts.
Specifically, above-mentioned steps（1）In temperature when using of bottom liquid be 45-55 DEG C.
Specifically, above-mentioned steps（2）In pigment be aluminium powder, copper powder, any one in carbon black.
Specifically, the content of the aluminium element in above-mentioned reinforcement liquid in aluminium isopropoxide is 13.1%.
Specifically, above-mentioned reinforcement liquid is made of following methods：Aluminium isopropoxide is added into absolute ethyl alcohol, continued Stirring, until after solids is completely dissolved, continuation adds kayexalate thereto, after being mixed evenly, is made and adds Strong liquid.
Technology more than, the beneficial effects of the invention are as follows：
The treated stamping parts of the present invention, its surface corrosion resistance can be lifted greatly, simple to operate, and cost is cheap. Bottom liquid provided by the invention, it can effectively lift the activation energy on stamping parts surface so that the paint film that is formed can be after paint is dried Stamping parts surface closely combines, it is necessary to carry out spray-applied primer processing to workpiece when avoiding painting in the prior art；This hair In bright paint, composition is simple, on the one hand can be effective after cyanurate melamine ester, polyvinyl imidazol synergy The adhesion of paint film is lifted, on the other hand can effectively lift the decay resistance of paint film；Reinforcement liquid provided by the invention, three is different Propoxyl group aluminium can effectively accelerate the rate of drying of paint, and after itself and kayexalate synergy, can be effective Lifting paint film compactness, and can lifted paint film decay resistance.
Embodiment
Following examples are used to illustrate the present invention, but can not be used for limiting the scope of the present invention.The reality used in embodiment The condition of applying can be for further adjustments according to the condition of producer, and unaccounted implementation condition is usually conventional laboratory conditions.
Embodiment 1
A kind of method for lifting stamping parts resistance to chemical corrosion, including following operating procedure：
（1）Stamping parts surface treatment is clean, bottom liquid is then uniformly coated thereon, the dosage of bottom liquid is 250ml/m2, its Midsole liquid is made up of the component of following parts by weight：22 parts of methylpropene sodium sulfonate, 31 parts of 4- halogen trimethylsilylbenzenes ethene, decanedioic acid 19 parts of di-potassium, 11 parts of 1- sodium heptanesulfonates, 250 parts of water；
（2）After coating bottom liquid 10min, uniformly varnished with lacquer on stamping parts surface, the thickness of smearing is 0.3mm, wherein painting It is made up of the component of following parts by weight：50 parts of acrylic emulsion, 11 parts of cyanurate melamine ester, 3 parts of polyvinyl imidazol, face 10 parts of material；
（3）Paint after 26min, reinforcement liquid is uniformly coated thereon, strengthens the dosage 60ml/m of liquid2, wherein strengthen liquid by with The component of lower parts by weight is made：20 parts of kayexalate, 10 parts of aluminium isopropoxide, 100 parts of absolute ethyl alcohol.
Specifically, above-mentioned steps（1）In temperature when using of bottom liquid be 45 DEG C.
Specifically, above-mentioned steps（2）In pigment be aluminium powder.
Specifically, the content of the aluminium element in above-mentioned reinforcement liquid in aluminium isopropoxide is 13.1%.
Specifically, above-mentioned reinforcement liquid is made of following methods：Aluminium isopropoxide is added into absolute ethyl alcohol, continued Stirring, until after solids is completely dissolved, continuation adds kayexalate thereto, after being mixed evenly, is made and adds Strong liquid.
Embodiment 2
A kind of method for lifting stamping parts resistance to chemical corrosion, including following operating procedure：
（1）Stamping parts surface treatment is clean, bottom liquid is then uniformly coated thereon, the dosage of bottom liquid is 300ml/m2, its Midsole liquid is made up of the component of following parts by weight：24 parts of methylpropene sodium sulfonate, 33 parts of 4- halogen trimethylsilylbenzenes ethene, decanedioic acid 21 parts of di-potassium, 13 parts of 1- sodium heptanesulfonates, 270 parts of water；
（2）After coating bottom liquid 13min, uniformly varnished with lacquer on stamping parts surface, the thickness of smearing is 0.4mm, wherein painting It is made up of the component of following parts by weight：55 parts of acrylic emulsion, 13 parts of cyanurate melamine ester, 5 parts of polyvinyl imidazol, face 13 parts of material；
（3）Paint after 32min, reinforcement liquid is uniformly coated thereon, strengthens the dosage 70ml/m of liquid2, wherein strengthen liquid by with The component of lower parts by weight is made：25 parts of kayexalate, 13 parts of aluminium isopropoxide, 130 parts of absolute ethyl alcohol.
Specifically, above-mentioned steps（1）In temperature when using of bottom liquid be 50 DEG C.
Specifically, above-mentioned steps（2）In pigment be copper powder.
Specifically, the content of the aluminium element in above-mentioned reinforcement liquid in aluminium isopropoxide is 13.1%.
Specifically, above-mentioned reinforcement liquid is made of following methods：Aluminium isopropoxide is added into absolute ethyl alcohol, continued Stirring, until after solids is completely dissolved, continuation adds kayexalate thereto, after being mixed evenly, is made and adds Strong liquid.
Embodiment 3
A kind of method for lifting stamping parts resistance to chemical corrosion, including following operating procedure：
（1）Stamping parts surface treatment is clean, bottom liquid is then uniformly coated thereon, the dosage of bottom liquid is 350ml/m2, its Midsole liquid is made up of the component of following parts by weight：28 parts of methylpropene sodium sulfonate, 35 parts of 4- halogen trimethylsilylbenzenes ethene, decanedioic acid 22 parts of di-potassium, 15 parts of 1- sodium heptanesulfonates, 300 parts of water；
（2）After coating bottom liquid 15min, uniformly varnished with lacquer on stamping parts surface, the thickness of smearing is 0.5mm, wherein painting It is made up of the component of following parts by weight：60 parts of acrylic emulsion, 16 parts of cyanurate melamine ester, 6 parts of polyvinyl imidazol, face 15 parts of material；
（3）Paint after 38min, reinforcement liquid is uniformly coated thereon, strengthens the dosage 80ml/m of liquid2, wherein strengthen liquid by with The component of lower parts by weight is made：30 parts of kayexalate, 15 parts of aluminium isopropoxide, 150 parts of absolute ethyl alcohol.
Specifically, above-mentioned steps（1）In temperature when using of bottom liquid be 55 DEG C.
Specifically, above-mentioned steps（2）In pigment be carbon black.
Specifically, the content of the aluminium element in above-mentioned reinforcement liquid in aluminium isopropoxide is 13.1%.
Specifically, above-mentioned reinforcement liquid is made of following methods：Aluminium isopropoxide is added into absolute ethyl alcohol, continued Stirring, until after solids is completely dissolved, continuation adds kayexalate thereto, after being mixed evenly, is made and adds Strong liquid.
The identical stamping parts of four materials is chosen, wherein three stamping parts are carried out at surface with the method for each embodiment respectively Reason, remaining stamping parts use conventional enamelling process, then test the decay resistance of stamping parts, and method of testing is：Will The stamping parts surface that 10ml test solution is instilled after japanning, test result are as shown in table 1：
The decay resistance of stamping parts after table 1 is painted
As shown in Table 1, stamping parts produced by the present invention, its decay resistance is extremely excellent, greatly extends making for stamping parts Use the life-span.

Claims (5)

  1. A kind of 1. method for lifting stamping parts resistance to chemical corrosion, it is characterised in that including following operating procedure：
    （1）Stamping parts surface treatment is clean, bottom liquid is then uniformly coated thereon, the dosage of bottom liquid is 250-350ml/m2, Its midsole liquid is made up of the component of following parts by weight：Methylpropene sodium sulfonate 22-28 parts, 4- halogen trimethylsilylbenzene ethene 31-35 Part, sebacate salt 19-22 parts, 1- sodium heptanesulfonate 11-15 parts, water 250-300 parts；
    （2）After coating bottom liquid 10-15min, uniformly being varnished with lacquer on stamping parts surface, the thickness of smearing is 0.3-0.5mm, its Middle paint is made up of the component of following parts by weight：Acrylic emulsion 50-60 parts, cyanurate melamine ester 11-16 parts, polyethylene Base imidazoles 3-6 parts, pigment 10-15 parts；
    （3）Paint after 26-38min, reinforcement liquid is uniformly coated thereon, strengthens the dosage 60-80ml/m of liquid2, wherein strengthening liquid It is made up of the component of following parts by weight：Kayexalate 20-30 parts, aluminium isopropoxide 10-15 parts, absolute ethyl alcohol 100- 150 parts.
  2. 2. according to a kind of method of lifting stamping parts resistance to chemical corrosion described in claim 1, it is characterised in that step （1）In temperature when using of bottom liquid be 45-55 DEG C.
  3. 3. according to a kind of method of lifting stamping parts resistance to chemical corrosion described in claim 1, it is characterised in that step （2）In pigment be aluminium powder, copper powder, any one in carbon black.
  4. 4. according to a kind of method of lifting stamping parts resistance to chemical corrosion described in claim 1, it is characterised in that above-mentioned The content for strengthening the aluminium element in liquid in aluminium isopropoxide is 13.1%.
  5. 5. according to a kind of method of lifting stamping parts resistance to chemical corrosion described in claim 4, it is characterised in that above-mentioned Strengthen liquid to be made of following methods：Aluminium isopropoxide is added into absolute ethyl alcohol, lasting stirring, until solids is complete After dissolving, continuation adds kayexalate thereto, after being mixed evenly, is made and strengthens liquid.
CN201710732536.6A 2017-08-24 2017-08-24 A kind of method for lifting stamping parts resistance to chemical corrosion Pending CN107670941A (en)

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CN201710732536.6A CN107670941A (en) 2017-08-24 2017-08-24 A kind of method for lifting stamping parts resistance to chemical corrosion

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111205691A (en) * 2020-02-19 2020-05-29 绍兴顺泰机械科技有限公司 Aluminum-containing coating composition for automobile ball joint assembly and application thereof
CN111205692A (en) * 2020-02-19 2020-05-29 绍兴顺泰机械科技有限公司 Magnesium-containing coating and preparation method thereof
CN111205724A (en) * 2020-02-19 2020-05-29 绍兴顺泰机械科技有限公司 Magnesium-containing coating composition for automobile ball joint assembly and application thereof
CN111303721A (en) * 2020-02-19 2020-06-19 绍兴顺泰机械科技有限公司 Aluminum-containing coating and preparation method thereof
CN111303720A (en) * 2020-02-19 2020-06-19 绍兴顺泰机械科技有限公司 Zinc-containing coating composition for automobile ball joint assembly and application thereof

Citations (2)

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Publication number Priority date Publication date Assignee Title
CN1759152A (en) * 2003-03-13 2006-04-12 巴斯福股份公司 Nitrogen-containing polymers for metal surface treatment
CN106634419A (en) * 2016-12-13 2017-05-10 安徽南方化工泵业有限公司 Surface painting method of corrosion-resistant chemical pump

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Publication number Priority date Publication date Assignee Title
CN1759152A (en) * 2003-03-13 2006-04-12 巴斯福股份公司 Nitrogen-containing polymers for metal surface treatment
CN106634419A (en) * 2016-12-13 2017-05-10 安徽南方化工泵业有限公司 Surface painting method of corrosion-resistant chemical pump

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Title
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111205691A (en) * 2020-02-19 2020-05-29 绍兴顺泰机械科技有限公司 Aluminum-containing coating composition for automobile ball joint assembly and application thereof
CN111205692A (en) * 2020-02-19 2020-05-29 绍兴顺泰机械科技有限公司 Magnesium-containing coating and preparation method thereof
CN111205724A (en) * 2020-02-19 2020-05-29 绍兴顺泰机械科技有限公司 Magnesium-containing coating composition for automobile ball joint assembly and application thereof
CN111303721A (en) * 2020-02-19 2020-06-19 绍兴顺泰机械科技有限公司 Aluminum-containing coating and preparation method thereof
CN111303720A (en) * 2020-02-19 2020-06-19 绍兴顺泰机械科技有限公司 Zinc-containing coating composition for automobile ball joint assembly and application thereof
CN111303720B (en) * 2020-02-19 2021-09-10 绍兴顺泰机械科技有限公司 Zinc-containing coating composition for automobile ball joint assembly and application thereof

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Application publication date: 20180209