CN108014987A - A kind of anti-alkaline etching ground spraying method of mechanical part - Google Patents
A kind of anti-alkaline etching ground spraying method of mechanical part Download PDFInfo
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- CN108014987A CN108014987A CN201711234071.8A CN201711234071A CN108014987A CN 108014987 A CN108014987 A CN 108014987A CN 201711234071 A CN201711234071 A CN 201711234071A CN 108014987 A CN108014987 A CN 108014987A
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- Prior art keywords
- parts
- mechanical part
- alkaline
- etching ground
- alkaline etching
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Classifications
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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
- B05D3/02—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 baking
- B05D3/0254—After-treatment
- B05D3/0272—After-treatment with ovens
-
- 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
-
- 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
- C09D131/00—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 acyloxy radical of a saturated carboxylic acid, of carbonic acid, or of a haloformic acid; Coating compositions based on derivatives of such polymers
- C09D131/02—Homopolymers or copolymers of esters of monocarboxylic acids
- C09D131/04—Homopolymers or copolymers of vinyl acetate
-
- 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
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2237—Oxides; Hydroxides of metals of titanium
- C08K2003/2241—Titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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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 relates to mechanical processing protective coating field, a kind of mechanical part acid-resistance etching ground spraying method is disclosed, is characterized in that：Cleaning treatment first is carried out to mechanical part surface, and dry, by anti-alkaline etching ground after mixing, mechanical part surface is sprayed on by spraying device, then polish in anti-alkaline coating surface, mechanical part is placed into preheating furnace again and is preheated, wherein anti-alkaline etching ground includes polyvinyl acetate emulsion, titanium dioxide, triethanolamine oxygen alkane, butadiene styrene copolymer emulsion, pearl powder, dispersant and deionized water, solving existing metal etching process, to process product often undesirable there are spraying effect, or there are position off quality for spray oil lacquer painting, and protective coating exist corroded by alkaline environment, mechanical surface is caused to be exposed in external environment condition, the problem of reducing its service life.
Description
Technical field
The present invention relates to mechanical processing protective coating field, is concretely a kind of anti-alkaline etching ground spray of mechanical part
Coating method.
Background technology
In existing machinery processing, it is required to coat coating in outside after the completion of finished product, the main application of the coating is
Completely cut off wet environment and mechanical metal surface, reduce mechanical surface by the risk of corrosion, but in actual use, such as polyformaldehyde
In project, in sodium hydroxide bin, Jie due to tension and is easily corroded by alkaline solution or gas attack at butt weld
The synergy of matter and produce cracking, it is this corrosion be along intergranular occur crackle, be stress-corrosion cracking a type.
Therefore, it is necessary to a kind of spraying effect be preferable, there is waterproof, impervious, change the deficiency of existing protective coating, solve because
The anti-alkaline etching ground spraying method of a kind of mechanical part that mechanical protection effect declines under alkaline environment.
The content of the invention
It is often undesirable there are spraying effect that the present invention for existing metal etching process processes product, or spray oil
Lacquer painting is there are position off quality, and protective coating causes mechanical surface exposed to outside in the presence of being corroded by alkaline environment
In environment, a kind of the problem of reducing its service life, there is provided the anti-alkaline etching ground spraying method of mechanical part.
The present invention solves above-mentioned technical problem, and the technical solution of use is a kind of anti-alkaline etching ground spray of mechanical part
Coating method, comprises the following steps：
The first step, cleaning treatment is carried out to mechanical part surface, and is dried；
Second step, mechanical part surface is sprayed on by spraying device by anti-alkaline etching ground after mixing；
3rd step, polishes in anti-alkaline coating surface；
4th step, mechanical part is placed into preheating furnace and is preheated.
Further, in the first step, hairbrush and the mechanical parts surface of greasy dirt detergent processing are passed through.
Further, in second step, anti-alkalescence etching ground includes polyvinyl acetate emulsion, titanium dioxide, triethanolamine oxygen
Alkane, butadiene-styrene copolymer lotion, pearl powder, dispersant and deionized water.
Further, in second step, in parts by weight, 40~70 parts of polyvinyl acetate emulsion, 15~25 parts of titanium dioxide, three
8~24 parts of monoethanolamine oxygen alkane, 4~12 parts of butadiene-styrene copolymer lotion, 2~8 parts of pearl powder, 2~8 parts of dispersant and 40
~120 parts of deionized waters.
Further, in second step, in parts by weight, 55 parts of polyvinyl acetate emulsion, 20 parts of titanium dioxide, triethanolamine oxygen
5 parts and 80 parts 18 parts of alkane, 7 parts of butadiene-styrene copolymer lotion, 5 parts of pearl powder, dispersant deionized waters.
Further, in the 3rd step, blasted rough processing is carried out to anti-alkaline coating surface to be sprayed, then using dry
Dry pressure-air carries out purging clean processing to the anti-alkaline coating surface after sandblasting.
Further, in the 4th step, preheating temperature is 90-115 DEG C, preheating time 20-45min.
The purpose so designed is that flow is simple and convenient to operate, coating quality is high, it sprays anti-alkaline etching ground
It can make to form rough coatings between mechanical part surface and coating by preheating afterwards, both bonded areas be improved, by rear
Continuous post processing further avoid the generation at local unqualified position.
Moreover caustic brittleness phenomenon is concentrated mainly at mechanical metal component aperture, it causes crystalline substance crisp by alkaline corrosion,
Polyvinyl acetate emulsion is to react a kind of obtained thermoplastic cement by Vinyl Acetate Monomer is aggregated, titanium dioxide and butadiene-
Styrene copolymerized lotion can form one of water proofing property membrane on mechanical metal surface, triethanolamine oxygen alkane, pearl powder and scattered
Agent with its distinctive active chemistry, using organic barrier film inherently chemically and porosity, using water as carrier, by
Alkaline matter reaction of formation outside the osmosis and organic barrier film of water, acts along or against hydraulic pressure direction, so as to reach
Waterproof, the purpose moisture-proof, resistant to chemical etching arrived.
Meanwhile pass through azole compounds, vanadium diboride, tributyl phosphate, polyvinyl alcohol, silicone, based on azole chemical combination
Thing and vanadium diboride absorb the water of polyvinyl acetate emulsion and butadiene-styrene copolymer lotion and harden, tricresyl phosphate fourth
Ester, polyvinyl alcohol and silicone are combined with polyvinyl acetate emulsion and butadiene-styrene copolymer lotion hardenite, are filled in
Between coating and mechanical metal gap, make coating that there is higher alkali resistance and toughness.
Beneficial effects of the present invention are at least one below：
1. flow is simple and convenient to operate, coating quality is high, machine can be made by preheating after the anti-alkaline etching ground of its spraying
Rough coatings are formed between tool parts surface and coating, both bonded areas is improved, is further avoided by subsequently post-processing
The generation at local unqualified position.
2. caustic brittleness phenomenon is concentrated mainly at mechanical metal component aperture, it causes crystalline substance crisp by alkaline corrosion, gathers
Acetate emulsion is to react a kind of obtained thermoplastic cement, titanium dioxide and butadiene-benzene by Vinyl Acetate Monomer is aggregated
Ethylene copolymerization emulsions can form one of water proofing property membrane, triethanolamine oxygen alkane, pearl powder and dispersant on mechanical metal surface
With its distinctive active chemistry, using organic barrier film inherently chemically and porosity, using water as carrier, by water
Osmosis and organic barrier film outside alkaline matter reaction of formation, acted along or against hydraulic pressure direction, so as to reach
Waterproof, purpose moisture-proof, resistant to chemical etching.
3. by azole compounds, vanadium diboride, tributyl phosphate, polyvinyl alcohol, silicone, based on azole compounds and
Vanadium diboride absorbs the water of polyvinyl acetate emulsion and butadiene-styrene copolymer lotion and hardens, tributyl phosphate, gathers
Vinyl alcohol and silicone are combined with polyvinyl acetate emulsion and butadiene-styrene copolymer lotion hardenite, are filled in coating
Between mechanical metal gap, make coating that there is higher alkali resistance and toughness.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, with reference to embodiments to the present invention
It is described in further detail.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, it is not used to limit
The fixed present invention.
Embodiment 1
A kind of anti-alkaline etching ground spraying method of mechanical part, comprises the following steps：
The first step, cleaning treatment is carried out to mechanical part surface, and is dried；
Second step, mechanical part surface is sprayed on by spraying device by anti-alkaline etching ground after mixing；
3rd step, polishes in anti-alkaline coating surface；
4th step, mechanical part is placed into preheating furnace and is preheated.
Embodiment 2
A kind of anti-alkaline etching ground spraying method of mechanical part, comprises the following steps：
The first step, cleaning treatment is carried out to mechanical part surface, and is dried, and machinery is handled by hairbrush and greasy dirt detergent
Parts surface；
Second step, mechanical part surface, alkali prevention is sprayed on by spraying device by anti-alkaline etching ground after mixing
Property etching ground include polyvinyl acetate emulsion, titanium dioxide, triethanolamine oxygen alkane, butadiene-styrene copolymer lotion, pearly-lustre
Powder, dispersant and deionized water；
3rd step, polishes in anti-alkaline coating surface；
4th step, mechanical part is placed into preheating furnace and is preheated.
Embodiment 3
A kind of anti-alkaline etching ground spraying method of mechanical part, comprises the following steps：
The first step, cleaning treatment is carried out to mechanical part surface, and is dried, and machinery is handled by hairbrush and greasy dirt detergent
Parts surface；
Second step, mechanical part surface, alkali prevention is sprayed on by spraying device by anti-alkaline etching ground after mixing
Property etching ground to include 55 parts of polyvinyl acetate emulsion, 20 parts of titanium dioxide, 18 parts of triethanolamine oxygen alkane, butadiene-styrene common
5 parts and 80 parts poly- 7 parts of lotion, 5 parts of pearl powder, dispersant deionized waters；
3rd step, polishes in anti-alkaline coating surface；
4th step, mechanical part is placed into preheating furnace and is preheated.
Embodiment 4
A kind of anti-alkaline etching ground spraying method of mechanical part, comprises the following steps：
The first step, cleaning treatment is carried out to mechanical part surface, and is dried, and machinery is handled by hairbrush and greasy dirt detergent
Parts surface；
Second step, mechanical part surface, alkali prevention is sprayed on by spraying device by anti-alkaline etching ground after mixing
Property etching ground to include 55 parts of polyvinyl acetate emulsion, 20 parts of titanium dioxide, 18 parts of triethanolamine oxygen alkane, butadiene-styrene common
5 parts and 80 parts poly- 7 parts of lotion, 5 parts of pearl powder, dispersant deionized waters；
3rd step, polishes in anti-alkaline coating surface；
4th step, mechanical part is placed into preheating furnace and is preheated, and preheating temperature is 90-115 DEG C, preheating time
20-45min。
Claims (7)
- A kind of 1. anti-alkaline etching ground spraying method of mechanical part, it is characterised in that：Comprise the following steps：The first step, cleaning treatment is carried out to mechanical part surface, and is dried；Second step, mechanical part surface is sprayed on by spraying device by anti-alkaline etching ground after mixing；3rd step, polishes in anti-alkaline coating surface；4th step, mechanical part is placed into preheating furnace and is preheated.
- A kind of 2. anti-alkaline etching ground spraying method of mechanical part according to claim 1, it is characterised in that：The first step In, pass through hairbrush and the mechanical parts surface of greasy dirt detergent processing.
- A kind of 3. anti-alkaline etching ground spraying method of mechanical part according to claim 2, it is characterised in that：Second step In, anti-alkalescence etching ground includes polyvinyl acetate emulsion, titanium dioxide, triethanolamine oxygen alkane, butadiene-styrene copolymer breast Liquid, pearl powder, dispersant and deionized water.
- A kind of 4. anti-alkaline etching ground spraying method of mechanical part according to claim 3, it is characterised in that：Second step In, in parts by weight, 40~70 parts of polyvinyl acetate emulsion, 15~25 parts of titanium dioxide, 8~24 parts of triethanolamine oxygen alkane, fourth two 2~8 parts and 40~120 parts alkene -4~12 parts of styrene copolymerized lotion, 2~8 parts of pearl powder, dispersant deionized waters.
- A kind of 5. anti-alkaline etching ground spraying method of mechanical part according to claim 4, it is characterised in that：Second step In, in parts by weight, 55 parts of polyvinyl acetate emulsion, 20 parts of titanium dioxide, 18 parts of triethanolamine oxygen alkane, butadiene-styrene are common 5 parts and 80 parts poly- 7 parts of lotion, 5 parts of pearl powder, dispersant deionized waters.
- A kind of 6. anti-alkaline etching ground spraying method of mechanical part according to claim 5, it is characterised in that：3rd step In, blasted rough processing is carried out to anti-alkaline coating surface to be sprayed, then using dry pressure-air to anti-after sandblasting Alkaline coating surface carries out purging clean processing.
- A kind of 7. anti-alkaline etching ground spraying method of mechanical part according to claim 6, it is characterised in that：4th step In, preheating temperature is 90-115 DEG C, preheating time 20-45min.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711234071.8A CN108014987A (en) | 2017-11-30 | 2017-11-30 | A kind of anti-alkaline etching ground spraying method of mechanical part |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201711234071.8A CN108014987A (en) | 2017-11-30 | 2017-11-30 | A kind of anti-alkaline etching ground spraying method of mechanical part |
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| CN108014987A true CN108014987A (en) | 2018-05-11 |
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| CN201711234071.8A Withdrawn CN108014987A (en) | 2017-11-30 | 2017-11-30 | A kind of anti-alkaline etching ground spraying method of mechanical part |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112924256A (en) * | 2021-01-29 | 2021-06-08 | 西安热工研究院有限公司 | Preparation method of corrosion test piece surface salt film |
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2017
- 2017-11-30 CN CN201711234071.8A patent/CN108014987A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112924256A (en) * | 2021-01-29 | 2021-06-08 | 西安热工研究院有限公司 | Preparation method of corrosion test piece surface salt film |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180511 |