CN107988470A - A kind of preparation of low-alloy super-strength steel heat treatment protective coating - Google Patents
A kind of preparation of low-alloy super-strength steel heat treatment protective coating Download PDFInfo
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- CN107988470A CN107988470A CN201711191656.6A CN201711191656A CN107988470A CN 107988470 A CN107988470 A CN 107988470A CN 201711191656 A CN201711191656 A CN 201711191656A CN 107988470 A CN107988470 A CN 107988470A
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- low
- strength steel
- heat treatment
- alloy super
- protective coating
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/68—Temporary coatings or embedding materials applied before or during heat treatment
- C21D1/70—Temporary coatings or embedding materials applied before or during heat treatment while heating or quenching
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Paints Or Removers (AREA)
- Application Of Or Painting With Fluid Materials (AREA)
Abstract
Field is protected in metal heat treatmet the present invention relates to low-alloy super-strength steel, is specifically a kind of protective coating used for metal thermal treatment, the low-alloy super-strength steel heat treatment protective coating is by acrylic resin; dispersant, polyamide wax powder, frit powder; mica iron oxide red; blanc fixe, kaolin, talcum powder; chrome oxide green; solvent forms, and during metal heat treatmet, can effectively prevent the decline of oxidation and decarbonizations and mechanical performance of the low-alloy super-strength steel D6AC in hot environment.
Description
Technical field
Field is protected in metal heat treatmet the present invention relates to low-alloy super-strength steel, at a kind of metal fever
Reason protective coating.
Background technology
The heat treatment of metal material is a very important process in metal machinery manufacture process, it is directly affected
The final mass and service life of metal parts.Low-alloy super-strength steel D6AC is a kind of special steel material, its is heat treated
Cheng Zhong, maximum temperature is up to 950 DEG C, more than two hours of time.In heat treatment process, it is desirable to metal base without obvious oxidation and
Decarburization.After Overheating Treatment, the mechanical performance such as tensile strength, yield strength, elongation percentage cannot all decline metal.Involved by the present invention
And Protective paint for heat treatment of metal, can effectively prevent possibility of the low-alloy super-strength steel D6AC in heat treatment process from going out
Existing oxidation and decarbonization situation, while the mechanical performance of metal is not in decline.Other metal heat treatmets compared in the market are protected
Coating is protected, its thickness of constructing is thinner, and less than 80um, when being quenched in heat treatment process, paint film Automatic-falling area is more than 95%.City
Field similar product, construction requirement minimum thickness 100um, pull-away area are more than 90%.
The content of the invention
For the heat treatment requirements of low-alloy super-strength steel D6AC, the present inventor have developed at a kind of metal fever
Manage protective coating.During metal heat treatmet, oxygen of the low-alloy super-strength steel D6AC in hot environment can be effectively prevented
Change decarburization and the decline of mechanical performance.The principle of the present invention is, is to apply first with the rise of furnace temperature in heat treatment process
The fast decoupled of contained resin and auxiliary agent among material, then be the high-temperature fusion of frit powder and color stuffing, formed one layer it is fine and close
Inorganic protective film, realizes the high-temperature oxidation resistant protection to base material.In quenching, the spy that film itself coefficient of expansion is larger is utilized
Property, realize that the quick of film completely comes off.
The low-alloy super-strength steel D6AC heat treatment protective coatings are by acrylic resin, dispersant, polyamide wax
Powder, frit powder, mica iron oxide red, blanc fixe, kaolin, talcum powder, chrome oxide green, solvent composition.
Based on the gross mass of coating, the content of each component is:
The sum of each component content is 100%.
The acrylic resin is alcohol-soluble acrylic resin.
The dispersant is at least one of BYK-182, BYK-184.
The levelling agent is at least one of BYK-346, BYK-320.
The frit powder A is about 400 DEG C of beginning fusing point, and temperature in use is 450 DEG C~650 DEG C of frit, through ball mill grinding
It is 800 mesh powders to fineness.
The frit powder B is about 650 DEG C of beginning fusing point, and temperature in use is 650 DEG C~850 DEG C of frit, through ball mill grinding
It is 800 mesh powders to fineness.
About 950 DEG C of the frit powder C beginnings fusing point, temperature in use are 900 DEG C~1200 DEG C of frit, through ball mill grinding extremely
Fineness is 800 mesh powders.
The solvent 1,2 is the industrial goods ethanol or absolute ethyl alcohol of content 95%.
The solvent 3 is the isopropanol of industrial goods.
The preparation method of low-alloy super-strength steel D6AC heat treatment protective coatings of the present invention, is formulated as described above
Stock, its preparation process are:
Acrylic resin and solvent 1 are added in container, dispersant and stream are added under being 100~150 revs/min in rotating speed
Flat agent, is stirred 10~15 minutes, adds polyamide wax powder, and rise rotating speed stirs 10~15 minutes to 200~300 revs/min, then
Added under being 100~150 revs/min in rotating speed frit powder A, frit powder B, frit powder C, mica iron oxide red, blanc fixe,
After kaolin, talcum powder, chrome oxide green stir 20~30 minutes, fineness is ground to less than 50 microns through being sanded, with solvent 2 and molten
The viscosity that agent 3 adjusts coating is less than 25 seconds (applying -1 glass).Up to low-alloy super-strength steel D6AC heat treatment protective coatings.
In use, first low-alloy super-strength steel D6AC is stirred evenly with heat treatment protective coating, it is ensured that do not have
There is layering and sink to the bottom, it is 60~80 microns which, which requires the thickness of application, can divide 2~3 times and reach required application thickness.
The present invention has the advantages that compared with prior art:
(1) in the case where film thickness is less than 80 microns, there is good heat treatment protecting effect to special steel D6AC.City
Field similar product will reach preferable protecting effect, and film thickness is thicker.
(2) in quenching process, for paint film from the area that comes off more than 95%, market similar product, the area that comes off certainly is more than 90%.
Embodiment
Embodiment 1:
Acrylic resin 11kg and absolute ethyl alcohol 6kg is added in container, BYK- is added under being 120 revs/min in rotating speed
182 (dispersant) 7kg and BYK-346 (levelling agent) 1kg, are stirred 10~15 minutes, add polyamide wax powder 2kg, raise rotating speed
To 260 revs/min, stir 10~15 minutes, then add frit powder A4kg, frit powder B15kg under being 120 revs/min in rotating speed, melt
Block powder C23kg, mica iron oxide red 7kg, blanc fixe 3kg, kaolin 2kg, talcum powder 2kg, chrome oxide green 8kg stirrings 20
After~30 minutes, fineness is ground to less than 50 microns through being sanded, with 95% industrial alcohol 4kg and isopropanol 5kg, low conjunction is made
Golden unimach D6AC heat treatment protective coatings.
Embodiment 2:(3) acrylic resin 9kg and absolute ethyl alcohol 4kg is added in container, is 110 revs/min in rotating speed
Lower addition BYK-182 (dispersant) 5kg and BYK-346 (levelling agent) 0.5kg, is stirred 10~15 minutes, adds polyamide wax powder
3kg, rise rotating speed stir 10~15 minutes to 240 revs/min, then add frit powder A5kg under being 110 revs/min in rotating speed, melt
Block powder B16kg, frit powder C24kg, mica iron oxide red 8kg, blanc fixe 4kg, kaolin 2kg, talcum powder 3kg, oxidation
After chrome green 7kg is stirred 20~30 minutes, fineness is ground to less than 50 microns through being sanded, with 95% industrial alcohol 4kg and isopropyl
Alcohol 3kg, is made low-alloy super-strength steel D6AC heat treatment protective coatings.
Embodiment 3:Acrylic resin 10kg and absolute ethyl alcohol 5kg is added in container, in the case where rotating speed is 120 revs/min
BYK-184 (dispersant) 9kg and BYK-346 (levelling agent) 0.5kg is added, is stirred 10~15 minutes, adds polyamide wax powder
2kg, rise rotating speed stir 10~15 minutes to 250 revs/min, then add frit powder A4kg under being 100 revs/min in rotating speed, melt
Block powder B16kg, frit powder C22kg, mica iron oxide red 8kg, blanc fixe 3kg, kaolin 3kg, talcum powder 3kg, oxidation
After chrome green 7kg is stirred 20~30 minutes, fineness is ground to less than 50 microns through being sanded, with 95% industrial alcohol 6kg and isopropyl
Alcohol 3kg, is made low-alloy super-strength steel D6AC heat treatment protective coatings.
Embodiment 4:Acrylic resin 9kg and absolute ethyl alcohol 4kg is added in container, is added under being 120 revs/min in rotating speed
Enter BYK-184 (dispersant) 7kg and BYK-346 (levelling agent) 1kg, stir 10~15 minutes, add polyamide wax powder 3kg, rise
High rotating speed stirs 10~15 minutes to 240 revs/min, then adds frit powder A6kg, frit powder under being 120 revs/min in rotating speed
B16kg, frit powder C21kg, mica iron oxide red 9kg, blanc fixe 5kg, kaolin 3kg, talcum powder 3kg, chrome oxide green
After 8kg is stirred 20~30 minutes, fineness is ground to less than 50 microns through being sanded, with 95% industrial alcohol 4kg and isopropanol
3kg, is made low-alloy super-strength steel D6AC heat treatment protective coatings.
Implementation result
Embodiment 1-3 is tested for the property, test result is as follows:
Claims (8)
- A kind of 1. low-alloy super-strength steel heat treatment protective coating, it is characterised in that:By mass, the content of each component For:The sum of each component content is 100%.
- 2. low-alloy super-strength steel heat treatment protective coating as claimed in claim 1, it is characterised in that dispersant is At least one of BYK-182, BYK-184.
- 3. low-alloy super-strength steel heat treatment protective coating as claimed in claim 1, it is characterised in that levelling agent is At least one of BYK-346, BYK-320.
- 4. low-alloy super-strength steel heat treatment protective coating as claimed in claim 1, it is characterised in that the frit A For about 400 DEG C of beginning fusing point, temperature in use is 450 DEG C~650 DEG C of frit, and frit B is about 650 DEG C of beginning fusing point, and temperature in use is 650 DEG C~850 DEG C of frit, about 950 DEG C of frit powder C beginnings fusing point, temperature in use are 900 DEG C~1200 DEG C of frit, described molten Block is that fineness is 800 mesh powders.
- 5. low-alloy super-strength steel heat treatment protective coating as claimed in claim 1, it is characterised in that the solvent 1, 2 be the industrial goods or absolute ethyl alcohol that ethanol is content 95%.
- 6. low-alloy super-strength steel heat treatment protective coating as claimed in claim 1, it is characterised in that the solvent 3 For the isopropanol of industrial goods.
- 7. the preparation method of low-alloy super-strength steel heat treatment protective coating as claimed in claim 1, it is characterised in that press Stock up according to content described above, acrylic resin and solvent 1 are added in container, add under being 100~150 revs/min in rotating speed Enter dispersant and levelling agent, stir 10~15 minutes, add polyamide wax powder, rise rotating speed is to 200~300 revs/min, stirring 10 ~15 minutes, then added under being 100~150 revs/min in rotating speed frit powder A, frit powder B, frit powder C, mica iron oxide red, After blanc fixe, kaolin, talcum powder, chrome oxide green stir 20~30 minutes, fineness is ground to less than 50 microns through being sanded, The viscosity that coating is adjusted with solvent 2 and solvent 3 is less than 25 seconds (applying -1 glass), is protected up to low-alloy super-strength steel heat treatment Coating.
- 8. a kind of low-alloy super-strength steel heat treatment protective coating, its feature exist as described in claim 1-8 any one In:In use, the thickness of film need to ensure to be no more than 120um in more than 70um, maximum gauge.
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111872375A (en) * | 2020-07-17 | 2020-11-03 | 苏州思珀利尔工业技术有限公司 | Preparation method of cobalt powder coated diamond pellet, cobalt powder coated diamond and application thereof |
CN112812600A (en) * | 2021-01-27 | 2021-05-18 | 厦门澄志精密科技有限公司 | Metal heat treatment protective coating |
Citations (5)
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CN1632137A (en) * | 2003-12-22 | 2005-06-29 | 中南大学 | High-efficiency self-stripping high-temperature oxidation/decarburization-resistant coating material |
CN101074455A (en) * | 2007-06-21 | 2007-11-21 | 上海交通大学 | Production of fast-drying water self-stripping metal heat treatment protecting coating |
CN101360796A (en) * | 2005-12-12 | 2009-02-04 | 纳米X有限公司 | Coating material for protecting metals, especially steel, from corrosion and/or scaling, method for coating metals and metal element |
CN103282548A (en) * | 2010-10-26 | 2013-09-04 | 新日铁住金株式会社 | Antioxidant and method for producing metal material |
CN103710504A (en) * | 2013-12-26 | 2014-04-09 | 常熟市美尔特金属制品有限公司 | Metal thermal treatment protection coating |
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2017
- 2017-11-24 CN CN201711191656.6A patent/CN107988470B/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1632137A (en) * | 2003-12-22 | 2005-06-29 | 中南大学 | High-efficiency self-stripping high-temperature oxidation/decarburization-resistant coating material |
CN101360796A (en) * | 2005-12-12 | 2009-02-04 | 纳米X有限公司 | Coating material for protecting metals, especially steel, from corrosion and/or scaling, method for coating metals and metal element |
CN101074455A (en) * | 2007-06-21 | 2007-11-21 | 上海交通大学 | Production of fast-drying water self-stripping metal heat treatment protecting coating |
CN103282548A (en) * | 2010-10-26 | 2013-09-04 | 新日铁住金株式会社 | Antioxidant and method for producing metal material |
CN103710504A (en) * | 2013-12-26 | 2014-04-09 | 常熟市美尔特金属制品有限公司 | Metal thermal treatment protection coating |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN111872375A (en) * | 2020-07-17 | 2020-11-03 | 苏州思珀利尔工业技术有限公司 | Preparation method of cobalt powder coated diamond pellet, cobalt powder coated diamond and application thereof |
CN112812600A (en) * | 2021-01-27 | 2021-05-18 | 厦门澄志精密科技有限公司 | Metal heat treatment protective coating |
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