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CN107321910A - Cracking resistance coating agent for model casting casting and preparation method thereof - Google Patents

Cracking resistance coating agent for model casting casting and preparation method thereof Download PDF

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Publication number
CN107321910A
CN107321910A CN201710531092.XA CN201710531092A CN107321910A CN 107321910 A CN107321910 A CN 107321910A CN 201710531092 A CN201710531092 A CN 201710531092A CN 107321910 A CN107321910 A CN 107321910A
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China
Prior art keywords
parts
cracking resistance
casting
powder
coating agent
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Pending
Application number
CN201710531092.XA
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Chinese (zh)
Inventor
李吕军
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Individual
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Individual
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Priority to CN201710531092.XA priority Critical patent/CN107321910A/en
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C3/00Selection of compositions for coating the surfaces of moulds, cores, or patterns
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C7/00Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/02Lost patterns
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C9/00Moulds or cores; Moulding processes
    • B22C9/02Sand moulds or like moulds for shaped castings
    • B22C9/04Use of lost patterns

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Dental Preparations (AREA)

Abstract

For the cracking resistance coating agent of model casting casting, it is related to model casting correlative technology field, is prepared from the following components:Hydroxypropyl methyl cellulose, APES, cracking resistance molten metal, sodium tetraborate, sodium metasilicate, sodium phosphate, Malaysia powder, atoleine, lauryl alcohol and deionized water.The present invention can improve the qualification rate of model casting product, reduce the slight crack quantity on cast member and burst degree, the probability that cast member ftractures in casting process is reduced by the use of the coating agent, improve product qualification rate.

Description

Cracking resistance coating agent for model casting casting and preparation method thereof
Technical field:
The present invention relates to model casting correlative technology field, and in particular to for model casting casting cracking resistance coating agent and Its preparation method.
Background technology:
Model casting is also known as lost-wax casting, including presses wax, repair wax, group tree, be stained with slurry, dewaxing, casting metals liquid and post processing Etc. process.Lost-wax casting is, with the waxed wax-pattern for making to be cast part, then mud to be coated with wax-pattern, here it is mud mould.Mud After mould dries, Tao Mo is being fired into.One is fired, and all fusing is lost in wax-pattern, only surplus Tao Mo.It is left with during general mud mould processed Sprue gate, then molten metal is poured into from sprue gate, after cooling, required part is just made.
Model casting uses the coating refractory material in the apperance being made up of fusible material to form shell, melts out mould Sample, after injection liquid metal cooling, the method for obtaining casting.
It is frequently encountered during model casting and is easy to cause cast member surface to produce slight crack in casting process Phenomenon, because temperature and wax pattern surface have the reasons such as stomata is not close so that the product quality of casting is not high.
The content of the invention:
The technical problems to be solved by the invention are that drawbacks described above can be overcome by providing one kind, improve model casting product Qualification rate, reduce cast member on slight crack quantity and burst degree model casting casting cracking resistance coating agent and its preparation side Method, the probability that cast member ftractures in casting process is reduced by the use of the coating agent, improves product qualification rate.
The technical problems to be solved by the invention are realized using following technical scheme:
The cracking resistance coating agent of model casting casting, is prepared from the following components:Hydroxypropyl methyl cellulose, alkyl phenol gather Oxygen vinethene, cracking resistance molten metal, sodium tetraborate, sodium metasilicate, sodium phosphate, Malaysia powder, atoleine, lauryl alcohol and deionization Water;
Above-mentioned each component according to the mass fraction, is prepared from by following mass fraction:Hydroxypropyl methyl cellulose 30-40 Part, 30-40 parts of APES, 20-30 parts of cracking resistance annex solution, 10-15 parts of sodium tetraborate, 3-8 parts of sodium metasilicate, phosphorus 20-25 parts of sour sodium 3-5 parts, powder 6-10 parts of Malaysia, 5-8 parts of atoleine, 3-6 parts of lauryl alcohol and deionized water;
Above-mentioned cracking resistance annex solution is prepared from the following components:Gelatin, hydrogen peroxide, iron powder, fluorine carbon dust, lignocellulosic, Rubber powder, powder of lacquer putty for use on and graphite powder;
The mass fraction of above-mentioned cracking resistance annex solution each component is:3-5 parts of gelatin, 30-40 parts of hydrogen peroxide, 15-30 parts of iron powder, 3-5 parts of 5-10 parts of fluorine carbon dust, 3-8 parts of lignocellulosic, 5-8 parts of rubber powder, 6-10 parts of powder of lacquer putty for use on and graphite powder;
The preparation method of the cracking resistance coating agent of the model casting casting comprises the following steps:
A, reactor is warming up to 80 DEG C, be then added to hydroxypropyl methyl cellulose, APES instead Answer and heating is stirred in kettle, stop heating when temperature rises to 60-75 DEG C, continue to stir, it is 600r/ that rotating speed is set during stirring min;
Sodium tetraborate, sodium metasilicate, sodium phosphate, Malaysia powder are sequentially added after the completion of b, stirring, one is often added during addition Plant raw material stirring and be further continued within ten minutes a kind of raw material under addition;
C and then toward adding cracking resistance molten metal, atoleine, lauryl alcohol and deionized water in reactor, and continue step a In stirring, stir 1-2h, be then shut off reactor after its it is naturally cold go after taking-up;
D, the mixture of taking-up is sent in ultraviolet sterilising case and sterilized;
Mixture is carried out microwave treatment by e, sterilization after terminating, and microwave frequency is set as 20-30GHz, after handling 5-8 minutes Take out;
F, by the mixture Jing Guo microwave treatment be again fed in agitator stir, model casting casting after stirring Cracking resistance coating agent prepare complete;
Wherein above-mentioned cracking resistance annex solution is prepared by the following method:
Hydrogen peroxide stirring will be added after iron powder, fluorine carbon dust, lignocellulosic, rubber powder, powder of lacquer putty for use on and graphite powder uniformly mixing, Gelatin is added after stirring, then centrifugal mixer is carried out to it, prepares and completes after stirring;
Further above-mentioned cracking resistance annex solution stands it 1-2h, then after the completion of preparation in the environment of -3-0 DEG C It is added and uses again;
Further in the preparation method of the cracking resistance coating agent of model casting casting, during sterilization, by ultraviolet sterilization Case is sterilized 2-3 times repeatedly;
Further deionized water carry out heating treatment before addition, using 50 DEG C of constant temperature heating 4- during heating 6 minutes;
Coating agent, is uniformly applied to wax-pattern table by the above-mentioned cracking resistance coating agent for model casting casting when in use Layer, the coat can be merged and in gold in the liquid surface poured after high temperature dissolves with metal liquid after then wax-pattern dissolves It can increase the anti-crack ability of cast member after belonging to liquid surface film forming, film forming;
The beneficial effects of the invention are as follows:Improve model casting product qualification rate, reduce cast member on slight crack quantity and Degree is burst, the probability that cast member ftractures in casting process is reduced by the use of the coating agent, product qualification rate is improved.
Embodiment:
In order that the technical means, the inventive features, the objects and the advantages of the present invention are easy to understand, tie below Specific example is closed, the present invention is expanded on further.
Embodiment 1:
For the cracking resistance coating agent of model casting casting, it is prepared from the following components:Hydroxypropyl methyl cellulose, alkyl Phenol polyethenoxy ether, cracking resistance molten metal, sodium tetraborate, sodium metasilicate, sodium phosphate, Malaysia powder, atoleine, lauryl alcohol and go from Sub- water;
Above-mentioned each component according to the mass fraction, is prepared from by following mass fraction:Hydroxypropyl methyl cellulose 30-40 Part, 30 parts of APES, 20 parts of cracking resistance annex solution, 10 parts of sodium tetraborate, 3 parts of sodium metasilicate, 3 parts of sodium phosphate, horse Come 20 parts of 6 parts of powder, 5 parts of atoleine, 3 parts of lauryl alcohol and deionized water;
Above-mentioned cracking resistance annex solution is prepared from the following components:Gelatin, hydrogen peroxide, iron powder, fluorine carbon dust, lignocellulosic, Rubber powder, powder of lacquer putty for use on and graphite powder;
The mass fraction of above-mentioned each component is:3 parts of gelatin, 30 parts of hydrogen peroxide, 15 parts of iron powder, 5 parts of fluorine carbon dust, wood fibre 3 parts of 3 parts of element, 5 parts of rubber powder, 6 parts of powder of lacquer putty for use on and graphite powder;
The preparation method of the cracking resistance coating agent for model casting casting comprises the following steps:
A, reactor is warming up to 80 DEG C, be then added to hydroxypropyl methyl cellulose, APES instead Answer and heating is stirred in kettle, stop heating when temperature rises to 60 DEG C, continue to stir, it is 600r/ that rotating speed is set during stirring min;
Sodium tetraborate, sodium metasilicate, sodium phosphate, Malaysia powder are sequentially added after the completion of b, stirring, one is often added during addition Plant raw material stirring and be further continued within ten minutes a kind of raw material under addition;
C and then toward adding cracking resistance molten metal, atoleine, lauryl alcohol and deionized water in reactor, and continue step a In stirring, stir 1h, be then shut off reactor after its it is naturally cold go after taking-up;
D, the mixture of taking-up is sent in ultraviolet sterilising case and sterilized;
Mixture is carried out microwave treatment by e, sterilization after terminating, and microwave frequency is set as 20GHz, and processing is taken out after 8 minutes;
F, by the mixture Jing Guo microwave treatment be again fed in agitator stir, model casting casting after stirring Cracking resistance coating agent prepare complete;
Wherein above-mentioned cracking resistance annex solution is prepared by the following method:
Hydrogen peroxide stirring will be added after iron powder, fluorine carbon dust, lignocellulosic, rubber powder, powder of lacquer putty for use on and graphite powder uniformly mixing, Gelatin is added after stirring, then centrifugal mixer is carried out to it, prepares and completes after stirring.
It is stood 1h, then entered again by further above-mentioned cracking resistance annex solution after the completion of preparation in the environment of -3 DEG C Row addition is used;
Further in the preparation method of the cracking resistance coating agent of model casting casting, during sterilization, by ultraviolet sterilization Case is sterilized 2 times repeatedly;
Further deionized water carry out heating treatment before addition, using 50 DEG C of constant temperature heatings 6 during heating Minute.
Embodiment 2:
For the cracking resistance coating agent of model casting casting, it is prepared from the following components:Hydroxypropyl methyl cellulose, alkyl Phenol polyethenoxy ether, cracking resistance molten metal, sodium tetraborate, sodium metasilicate, sodium phosphate, Malaysia powder, atoleine, lauryl alcohol and go from Sub- water;
Above-mentioned each component according to the mass fraction, is prepared from by following mass fraction:40 parts of hydroxypropyl methyl cellulose, alkane 40 parts of base phenol polyethenoxy ether, 30 parts of cracking resistance annex solution, 15 parts of sodium tetraborate, 8 parts of sodium metasilicate, 5 parts of sodium phosphate, Malaysia powder 10 Part, 8 parts of atoleine, 6 parts of lauryl alcohol and 25 parts of deionized water;
Above-mentioned cracking resistance annex solution is prepared from the following components:Gelatin, hydrogen peroxide, iron powder, fluorine carbon dust, lignocellulosic, Rubber powder, powder of lacquer putty for use on and graphite powder;
The mass fraction of above-mentioned each component is:5 parts of gelatin, 40 parts of hydrogen peroxide, 30 parts of iron powder, 10 parts of fluorine carbon dust, wooden fibre 5 parts of 8 parts of dimension element, 8 parts of rubber powder, 10 parts of powder of lacquer putty for use on and graphite powder;
The preparation method of the cracking resistance coating agent for model casting casting comprises the following steps:
A, reactor is warming up to 80 DEG C, be then added to hydroxypropyl methyl cellulose, APES instead Answer and heating is stirred in kettle, stop heating when temperature rises to 75 DEG C, continue to stir, it is 600r/ that rotating speed is set during stirring min;
Sodium tetraborate, sodium metasilicate, sodium phosphate, Malaysia powder are sequentially added after the completion of b, stirring, one is often added during addition Plant raw material stirring and be further continued within ten minutes a kind of raw material under addition;
C and then toward adding cracking resistance molten metal, atoleine, lauryl alcohol and deionized water in reactor, and continue step a In stirring, stir 2h, be then shut off reactor after its it is naturally cold go after taking-up;
D, the mixture of taking-up is sent in ultraviolet sterilising case and sterilized;
Mixture is carried out microwave treatment by e, sterilization after terminating, and microwave frequency is set as 30GHz, and processing is taken out after 5 minutes;
F, by the mixture Jing Guo microwave treatment be again fed in agitator stir, model casting casting after stirring Cracking resistance coating agent prepare complete;
Wherein above-mentioned cracking resistance annex solution is prepared by the following method:
Hydrogen peroxide stirring will be added after iron powder, fluorine carbon dust, lignocellulosic, rubber powder, powder of lacquer putty for use on and graphite powder uniformly mixing, Gelatin is added after stirring, then centrifugal mixer is carried out to it, prepares and completes after stirring.
It is stood 2h, then carried out again by further above-mentioned cracking resistance annex solution after the completion of preparation in the environment of 0 DEG C Addition is used;
Further in the preparation method of the cracking resistance coating agent of model casting casting, during sterilization, by ultraviolet sterilization Case is sterilized 3 times repeatedly;
Further deionized water carry out heating treatment before addition, using 50 DEG C of constant temperature heatings 6 during heating Minute.
The coating agent being prepared from using above-described embodiment 1 and 2, is acted on the surface of model casting wax-pattern, then distinguished Slight crack quantity is carried out to it and degree is burst carrying out data record, draw following table data:
Classification Slight crack quantity Maximum slight crack length Slight crack depth
Embodiment 1 3 0.3㎝ 0.01㎝
Embodiment 2 1 0.1㎝ 0.01㎝
Learnt by above-mentioned data comparison, the cracking resistance for model casting wax-pattern prepared using this patent scheme is coated Agent, can effectively reduce the slight crack quantity of cast member after the casting, and no matter from slight crack depth and slight crack length for The cast member without coating is all substantially better than, therefore the present invention has raising model casting product qualification rate, reduces cast member On slight crack quantity and burst the effect of degree.
The general principle and principal character and advantages of the present invention of the present invention has been shown and described above.The technology of the industry Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the simply explanation described in above-described embodiment and specification is originally The principle of invention, without departing from the spirit and scope of the present invention, various changes and modifications of the present invention are possible, these changes Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its Equivalent thereof.

Claims (9)

1. the cracking resistance coating agent for model casting casting, it is characterised in that:It is prepared from the following components:Hydroxypropyl methyl is fine Tie up element, APES, cracking resistance molten metal, sodium tetraborate, sodium metasilicate, sodium phosphate, Malaysia powder, atoleine, ten Glycol and deionized water.
2. the preparation method of the cracking resistance coating agent for model casting casting, it is characterised in that:Comprise the following steps:
A, reactor is warming up to 80 DEG C, hydroxypropyl methyl cellulose, APES are then added to reactor In be stirred heating, when temperature rises to 60-75 DEG C stop heating, continue stir, during stirring set rotating speed be 600r/min;
Sodium tetraborate, sodium metasilicate, sodium phosphate, Malaysia powder are sequentially added after the completion of b, stirring, a kind of original is often added during addition Material stirring is further continued for a kind of raw material under addition for ten minutes;
C and then toward adding cracking resistance molten metal, atoleine, lauryl alcohol and deionized water in reactor, and continue in step a Stirring, stir 1-2h, be then shut off reactor after its it is naturally cold go after taking-up;
D, the mixture of taking-up is sent in ultraviolet sterilising case and sterilized;
Mixture is carried out microwave treatment by e, sterilization after terminating, and microwave frequency is set as 20-30GHz, and processing takes after 5-8 minutes Go out;
F, the mixture Jing Guo microwave treatment is again fed in agitator and stirred, model casting casting is anti-after stirring Split coating agent and prepare completion.
3. the cracking resistance coating agent according to claim 1 for model casting casting, it is characterised in that:By following mass parts The component of number meter is prepared from:30-40 parts of hydroxypropyl methyl cellulose, 30-40 parts of APES, cracking resistance annex solution 20-30 parts, 10-15 parts of sodium tetraborate, 3-8 parts of sodium metasilicate, 3-5 parts of sodium phosphate, powder 6-10 parts of Malaysia, 5-8 parts of atoleine, 20-25 parts of 3-6 parts of lauryl alcohol and deionized water.
4. the cracking resistance coating agent according to claim 1 for model casting casting, it is characterised in that:The cracking resistance addition Liquid is prepared from the following components:Gelatin, hydrogen peroxide, iron powder, fluorine carbon dust, lignocellulosic, rubber powder, powder of lacquer putty for use on and graphite powder.
5. the cracking resistance coating agent according to claim 4 for model casting casting, it is characterised in that:According to the mass fraction Described cracking resistance annex solution is prepared from the following components:3-5 parts of gelatin, 30-40 parts of hydrogen peroxide, 15-30 parts of iron powder, fluorine carbon dust 3-5 parts of 5-10 parts, 3-8 parts of lignocellulosic, 5-8 parts of rubber powder, 6-10 parts of powder of lacquer putty for use on and graphite powder.
6. the cracking resistance coating agent according to claim 4 for model casting casting, it is characterised in that:The cracking resistance addition Liquid is prepared by the following method:After iron powder, fluorine carbon dust, lignocellulosic, rubber powder, powder of lacquer putty for use on and graphite powder uniformly mixing Hydrogen peroxide stirring is added, gelatin is added after stirring, then centrifugal mixer is carried out to it, prepares and completes after stirring.
7. the preparation method of the cracking resistance coating agent according to claim 2 for model casting casting, it is characterised in that:Institute Cracking resistance annex solution is stated after the completion of preparation, it is stood to 1-2h in the environment of -3-0 DEG C, is then added and uses again.
8. the preparation method of the cracking resistance coating agent according to claim 2 for model casting casting, it is characterised in that:It is right When mixture is sterilized, sterilized 2-3 times repeatedly by ultraviolet sterilising case.
9. the preparation method of the cracking resistance coating agent according to claim 2 for model casting casting, it is characterised in that:Institute Deionized water carry out heating treatment before addition is stated, is heated 4-6 minutes using 50 DEG C of constant temperature during heating.
CN201710531092.XA 2017-07-03 2017-07-03 Cracking resistance coating agent for model casting casting and preparation method thereof Pending CN107321910A (en)

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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108246969A (en) * 2018-01-29 2018-07-06 济宁市天狮涂料有限公司 A kind of low addition lost foam paint multifunction additive
CN111482557A (en) * 2020-05-19 2020-08-04 上海交通大学 Preparation method of ceramic shell for precision casting of nickel-based superalloy large-scale castings

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4664948A (en) * 1983-03-24 1987-05-12 Harborchem, Inc. Method for coating refractory molds
CN1082466A (en) * 1993-02-15 1994-02-23 大连冷冻机厂 Resin sand mould (core) or cast part type (core) is used water based paint
CN103360804A (en) * 2013-07-24 2013-10-23 刘新利 Graphite heat-dissipation coating and preparation method thereof
CN105562582A (en) * 2016-02-01 2016-05-11 安徽埃斯克制泵有限公司 Casting sand for pump body sand mold casting
CN105798225A (en) * 2014-12-27 2016-07-27 嘉兴市亚达特种钢铸造有限公司 Anti-crack enhanced complexing agent for fired mold precision casting paint and application thereof
CN106011613A (en) * 2016-05-23 2016-10-12 安徽鑫宏机械有限公司 Nanocrystalline barium titanate modified cast-infiltration composite wear-resisting hammerhead of mine-used crushing machine and production method thereof

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4664948A (en) * 1983-03-24 1987-05-12 Harborchem, Inc. Method for coating refractory molds
CN1082466A (en) * 1993-02-15 1994-02-23 大连冷冻机厂 Resin sand mould (core) or cast part type (core) is used water based paint
CN103360804A (en) * 2013-07-24 2013-10-23 刘新利 Graphite heat-dissipation coating and preparation method thereof
CN105798225A (en) * 2014-12-27 2016-07-27 嘉兴市亚达特种钢铸造有限公司 Anti-crack enhanced complexing agent for fired mold precision casting paint and application thereof
CN105562582A (en) * 2016-02-01 2016-05-11 安徽埃斯克制泵有限公司 Casting sand for pump body sand mold casting
CN106011613A (en) * 2016-05-23 2016-10-12 安徽鑫宏机械有限公司 Nanocrystalline barium titanate modified cast-infiltration composite wear-resisting hammerhead of mine-used crushing machine and production method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108246969A (en) * 2018-01-29 2018-07-06 济宁市天狮涂料有限公司 A kind of low addition lost foam paint multifunction additive
CN111482557A (en) * 2020-05-19 2020-08-04 上海交通大学 Preparation method of ceramic shell for precision casting of nickel-based superalloy large-scale castings

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Application publication date: 20171107

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