CN106513570A - Casting coating and preparation method thereof - Google Patents
Casting coating and preparation method thereof Download PDFInfo
- Publication number
- CN106513570A CN106513570A CN201610886362.4A CN201610886362A CN106513570A CN 106513570 A CN106513570 A CN 106513570A CN 201610886362 A CN201610886362 A CN 201610886362A CN 106513570 A CN106513570 A CN 106513570A
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- Prior art keywords
- component
- parts
- coating
- raw material
- foundry facing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C3/00—Selection of compositions for coating the surfaces of moulds, cores, or patterns
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention provides a casting coating. The casting coating comprises, by mass, 65-90 parts of a component A, 100-130 parts of a component B, and 8-12 parts of a component C. The component A is a refractory material component, the component B is a carrier liquid and bonding agent component, and the component C is an additive and assistant component. The casting coating is good in heat-insulation performance, thermal shock borne by metal can be reduced, and the service life of the metal is prolonged; the thermal resistance of a system can be adjusted, and the cooling speed can be controlled, so that it is guaranteed that the structure and performance of a casting meet requirements; and the casting coating has certain adhesive strength and cohesive strength, and thus the situation that molten liquid scours the coating under the effect of centrifugal force can be prevented.
Description
Technical field
The invention belongs to casting field, and in particular to a kind of coating of casting and preparation method thereof.
Background technology
Technology of EPC is a kind of precise forming technology being at home and abroad widely applied.Coating is evaporative pattern
One of key technology of casting technique, the quality of coating quality directly affect the success or failure of the technique.Disclose in many documents, disappear
Die cast technique success or not 50% depends on apperance, and 30% depends on coating, and 20% depends on other technological factors, so domestic
Outer founder author offsets the cast paint used in lost pattern casting technology and pays much attention to.In China, due to cast paint
Commercialized degree is not high, and formula and performance shortage system in-depth study of most of lost foam casting producer to coating, in reality
It is general all personal in production scene autogamy in the production of border, cause casting quality more problems, directly weaken lost foam casting essence
Really the advantage of production, significantly limit the development of Technology of EPC.Therefore, go deep into systematic research and efficiently control
Lost foam casting coating has important and far-reaching meaning to the stability for improving overall lost foam casting process process.
In general foundry facing needs to meet claimed below：
（1）With certain heat-proof quality, the thermal shock suffered by metal mold can be reduced；
（2）With certain intensity；
（3）With low gas forming amount；
（4）Coating process is practical and is beneficial to storage and clears up.
The content of the invention
The present invention considers the deficiencies in the prior art, there is provided a kind of heat-proof quality is good, the high and low gas forming amount of intensity, rheology
The foundry facing of the good easy to clean of performance, suspendability.
The technical problem to be solved is achieved by following steps：
Cast paint can be formulated by plurality of raw materials, will generally include refractory material, carrier fluid, binding agent, suspending agent and auxiliary agent
Deng composition.Refractory material is the main part to form coating, be determine strength of coating, stability, most important group of gas-forming property
Into part, cooperate from various different mineral materials in component A of the present invention and made that heat-proof quality is good and intensity height
Raw material.It is used in combination as carrier fluid, phenolic resin using ethanol, tall oil, linseed oil fatty acid in component B of the present invention
And coupling agent is used as binding agent, while adding other active components increases bond effect.Titanium dioxide is selected in component C of the present invention
Silica aerogel, molybdenum bisuphide, carboxymethylcellulose calcium, the composition of nano titanium oxide, on the one hand, said composition contributes to increasing
Bond effect, on the other hand, said composition contributes to the dispersion of raw material inside coating.
The foundry facing composition provided in the present invention and weight portion are：
The additive includes component A, component B, component C, and wherein three's mass parts are：
Component A 65-90 parts
Component B 100-130 parts
Component C 8-12 parts
Wherein, in component A and component A, each composition weight portion is：
Diatomite 30-45 parts
Konilite 5-10 parts
Attapulgite 10-15 parts
Illite 5-8 parts
Wollastonite 15-18 parts
Expanded perlite 3-5 parts
In component B and component B, each composition weight portion is：
Ethanol 65-80 parts
Tall oil 5-8 parts
Linseed oil fatty acid 6-12 parts
Phenolic resin 10-15 parts
Coupling agent 0.3-0.6 parts
Coupling agent in component B is preferably silane coupler or titanate coupling agent.
In component C and component C, each composition weight portion is：
Aerosil 15-18 parts
Molybdenum bisuphide 2-5 parts
Carboxymethylcellulose calcium 8-18 parts
Nano titanium oxide 12-18 parts.
In component C, the preferred specific surface area of aerosil is 350-450m2/ g, density are 52-60kg/m3Raw material.
In component C, nano titanium oxide preferable particle size scope is 20-60nm.
Further, the coating density in the present invention is 1.52-1.66g/cm3。
The present invention also provides a kind of method for preparing above-mentioned foundry facing, comprises the steps：
Step one, at a temperature of 180-200 DEG C toasts 4-6 hours after each raw material in component A is crushed, is well mixed, toasts
After be ground to solid particle granularity less than 20 μm, component A is obtained；
Preferably, after component A raw material is broken, granularity is 50-80 μm.
Further preferably, continue to toast 2-3 hours after the grinding of component A is finished at a temperature of 180-200 DEG C.
Step 2, by each raw material mixing in component B, disperses 25-45min under the conditions of 800-1500r/min, group is obtained
Divide B；
Step 3, is ground to solid particle granularity less than 20 μm, component C is obtained after each raw material in component C is well mixed；
Step 4, after obtained component A, B, C mix in above-mentioned steps, is ground to solid under 55-65 DEG C of temperature conditionss
Grain granularity obtains final product required coating less than 10 μm.Lifting temperature grinding contributes to promoting the homogeneity of coating system, effectively prevents from applying
Material sedimentation.
Foundry facing fire resistance in the present invention is good, is particularly suited for being painted on big plane in the way of spraying automatically
Mo(U)ld face.
The present invention has the advantages that：
1st, the foundry facing heat-proof quality in the present invention is good, can reduce the thermal shock suffered by metal mold, improve its service life,
Adjustable systems thermal resistance, control cooling velocity, reach requirement with the tissue and performance that ensure foundry goods.
2nd, the foundry facing intensity in the present invention is high, with certain adhesive strength and cohesive strength, can prevent metal
Liquid washes away coating under the influence of centrifugal force.
3rd, the foundry facing in the present invention has low gas forming amount, it is to avoid because gas discharge the founder that causes not exclusively,
The defects such as pore, slag inclusion and carbon black.
4th, the foundry facing good rheological property in the present invention, shelf-stable, easy to clean.
Specific embodiment
Present disclosure is conducted further description below by embodiment.
Embodiment 1
1st, composition proportion
In component A and component A, each composition weight portion is：
42 parts of diatomite
5 parts of konilite
10 parts of attapulgite
7 parts of illite
16 parts of wollastonite
4 parts of expanded perlite
In component B and component B, each composition weight portion is：
78 parts of ethanol
6.5 parts of tall oil
9 parts of linseed oil fatty acid
15 parts of phenolic resin
0.6 part of silane coupler
In component C and component C, each composition weight portion is：
16 parts of aerosil
2 parts of molybdenum bisuphide
15 parts of carboxymethylcellulose calcium
15 parts of nano titanium oxide.
Wherein, in component C, aerosil is 425m from specific surface area2/ g, density are 55kg/m3Raw material.Group
Titanium dioxide nanoparticle particle diameter in C is divided to be 50nm.
Component A, component B, component C mass parts are：
70 parts of component A
120 parts of component B
10 parts of component C
2nd, the preparation of coating
Step one, toasts 6 hours after each raw material in component A is crushed to 50 μm, is well mixed at a temperature of 200 DEG C, baking
After be ground to solid particle granularity less than 20 μm, then continue baking 2 hours at a temperature of 200 DEG C, component A after cooling, be obtained；
Step 2, by each raw material mixing in component B, disperses 30min under the conditions of 1500r/min, component B is obtained；
Step 3, is ground to solid particle granularity less than 20 μm, component C is obtained after each raw material in component C is well mixed；
Step 4, after obtained component A, B, C mix in above-mentioned steps, is ground to solid particle grain under 65 DEG C of temperature conditionss
Degree obtains final product required coating less than 10 μm.
Find in dope preparing process, in component A, diatomite content is higher, and coating heat resistance is better, but coating
Mobile performance can decrease, the flowing of effective adjusting coating is then capable of in the addition of wollastonite and expanded perlite in component A
Performance.Aeroge and nano titanium oxide in component C can effectively maintain the resistance to overturning of coating, coating is not settled and do not roll into a ball
It is poly-.In three component proportions, the content of component B determines coating overall flow and caking property, and the proportioning of three components is needed
Complements each other the suitable foundry facing that can just prepare.
Embodiment 2
In component A and component A, each composition weight portion is：
35 parts of diatomite
5 parts of konilite
12 parts of attapulgite
8 parts of illite
15 parts of wollastonite
3 parts of expanded perlite
In component B and component B, each composition weight portion is：
65 parts of ethanol
7 parts of tall oil
10 parts of linseed oil fatty acid
12 parts of phenolic resin
0.5 part of silane coupler
In component C and component C, each composition weight portion is：
15 parts of aerosil
2 parts of molybdenum bisuphide
18 parts of carboxymethylcellulose calcium
18 parts of nano titanium oxide.
Wherein, in component C, aerosil is 425m from specific surface area2/ g, density are 55kg/m3Raw material.Group
Titanium dioxide nanoparticle particle diameter in C is divided to be 50nm.
Component A, component B, component C mass parts are：
65 parts of component A
115 parts of component B
8 parts of component C
2nd, the preparation of coating
Step one, toasts 6 hours after each raw material in component A is crushed to 50 μm, is well mixed at a temperature of 180 DEG C, baking
After be ground to solid particle granularity less than 20 μm, then continue baking 2 hours at a temperature of 200 DEG C, component A after cooling, be obtained；
Step 2, by each raw material mixing in component B, disperses 30min under the conditions of 1200r/min, component B is obtained；
Step 3, is ground to solid particle granularity less than 20 μm, component C is obtained after each raw material in component C is well mixed；
Step 4, after obtained component A, B, C mix in above-mentioned steps, is ground to solid particle grain under 62 DEG C of temperature conditionss
Degree obtains final product required coating less than 10 μm.
Embodiment 3
In component A and component A, each composition weight portion is：
45 parts of diatomite
8 parts of konilite
12 parts of attapulgite
8 parts of illite
18 parts of wollastonite
3 parts of expanded perlite
In component B and component B, each composition weight portion is：
80 parts of ethanol
8 parts of tall oil
10 parts of linseed oil fatty acid
15 parts of phenolic resin
0.6 part of silane coupler
In component C and component C, each composition weight portion is：
18 parts of aerosil
5 parts of molybdenum bisuphide
18 parts of carboxymethylcellulose calcium
18 parts of nano titanium oxide.
Wherein, in component C, aerosil is 425m from specific surface area2/ g, density are 55kg/m3Raw material.Group
Titanium dioxide nanoparticle particle diameter in C is divided to be 50nm.
Component A, component B, component C mass parts are：
90 parts of component A
128 parts of component B
12 parts of component C
2nd, the preparation of coating
Preparation method is identical with implementing 1.
Obtained foundry facing automatic spraying equipment in embodiment 1,2,3 is coated on into mo(U)ld face, coating is tested
Density, suspension, specific viscosity, thixotropy and gas-forming property.
The measuring method of coating density adopts general graduated cylinder weighing method.
Coating suspension is coating opposing solid refractory powder layering and the ability for precipitating, and is represented with suspensibility %.To suspending
Property test using tool plug graduated cylinder mensuration, by the coating for configure will mix it is uniform after pour into immediately it is ready have fill in graduated cylinder
In so as to liquid level reaches at 100ml absolute altitudes, under static state, and coating sample is placed after certain hour, observation coating precipitation
Situation, the percentage for accounting for former paint solvent with non-precipitating thing represent the suspension of the coating.
The specific viscosity of coating is determined by efflux cup method.
The thixotropic property of coating is tested using rotation viscometer.
The gas-forming property of coating is measured on intelligent gas-forming property tester, and method of testing is：Coating to be measured is placed in into baking
In dry case, 150 DEG C are warming up to, are incubated 3h, are cooled to room temperature, grind into powder is standby.During test, tester is warming up to into 850
DEG C, steady temperature is kept, coating sample 1g is taken and is placed in porcelain boat, then porcelain boat is put in the porcelain tube of high temperature furnace, and is pushed away rapidly
Enter to the quartz ampoule red heat part of stove, the mouth of pipe is closed with stopper, sample is heated under conditions of very hot, while gas-forming property
The record portion of tester point is started working, and records gas forming amount.
Test result is as follows：
Apparently, the foundry facing medium density in embodiment is resistance to for practice by above-mentioned test result and in use
Store, rheology thixotropic property is good, gas forming amount is low（Contrast conventional cast the amount of gas evolution from the coating is more than 30ml/g）, in actually used mistake
In journey, intensity height, heat resistance are good, compared with existing foundry facing, with obvious performance advantage.
It is last it should be noted that above example is only to illustrate the technical scheme of the embodiment of the present invention rather than which is entered
Row is limited, although being described in detail to the embodiment of the present invention with reference to preferred embodiment, one of ordinary skill in the art
It should be understood that still the technical scheme of the embodiment of the present invention can be modified or equivalent, and these are changed or wait
Amended technical scheme can not be also made to depart from the scope of embodiment of the present invention technical scheme with replacement.
Claims (9)
1. a kind of foundry facing, it is characterised in that composition and weight portion are：
The additive includes component A, component B, component C, and wherein three's mass parts are：
Component A 65-90 parts
Component B 100-130 parts
Component C 8-12 parts
Wherein, in component A and component A, each composition weight portion is：
Diatomite 30-45 parts
Konilite 5-10 parts
Attapulgite 10-15 parts
Illite 5-8 parts
Wollastonite 15-18 parts
Expanded perlite 3-5 parts
In component B and component B, each composition weight portion is：
Ethanol 65-80 parts
Tall oil 5-8 parts
Linseed oil fatty acid 6-12 parts
Phenolic resin 10-15 parts
Coupling agent 0.3-0.6 parts
In component C and component C, each composition weight portion is：
Aerosil 15-18 parts
Molybdenum bisuphide 2-5 parts
Carboxymethylcellulose calcium 8-18 parts
Nano titanium oxide 12-18 parts.
2. foundry facing as claimed in claim 1, it is characterised in that：Coupling agent in component B is silane coupler or titanium
Acid esters coupling agent.
3. foundry facing as claimed in claim 1, it is characterised in that：In component C, aerosil specific surface area is
350-450m2/ g, density are 52-60kg/m3。
4. foundry facing as claimed in claim 1, it is characterised in that：In component C, nano titanium oxide particle size range is 20-
60nm。
5. foundry facing as claimed in claim 1, it is characterised in that：The coating density is 1.52-1.66g/cm3。
6. a kind of method for preparing the foundry facing as described in claim 1-5 is arbitrary, it is characterised in that comprise the steps：
Step one, at a temperature of 180-200 DEG C toasts 4-6 hours after each raw material in component A is crushed, is well mixed, toasts
After be ground to solid particle granularity less than 20 μm, component A is obtained；
Step 2, by each raw material mixing in component B, disperses 25-45min under the conditions of 800-1500r/min, component B is obtained；
Step 3, is ground to solid particle granularity less than 20 μm, component C is obtained after each raw material in component C is well mixed；
Step 4, after obtained component A, B, C mix in above-mentioned steps, is ground to solid under 55-65 DEG C of temperature conditionss
Grain granularity obtains final product required coating less than 10 μm.
7. preparation method for coating as claimed in claim 6, it is characterised in that：After in step one, component A raw material is broken, granularity is
50-80μm。
8. preparation method for coating as claimed in claim 6, it is characterised in that：In 180- after in step one, the grinding of component A is finished
Continue baking 2-3 hours at a temperature of 200 DEG C.
9. a kind of using method of the foundry facing as described in claim 1-5 is arbitrary, it is characterised in that：The coating is with automatic
The mode of spraying is painted on big plane mo(U)ld face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610886362.4A CN106513570A (en) | 2016-10-10 | 2016-10-10 | Casting coating and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610886362.4A CN106513570A (en) | 2016-10-10 | 2016-10-10 | Casting coating and preparation method thereof |
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| CN106513570A true CN106513570A (en) | 2017-03-22 |
Family
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| CN201610886362.4A Pending CN106513570A (en) | 2016-10-10 | 2016-10-10 | Casting coating and preparation method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110538963A (en) * | 2019-10-21 | 2019-12-06 | 徐州市国艺铝合金包装箱有限公司 | Packaging coating suitable for aluminum alloy |
| CN110961571A (en) * | 2020-01-07 | 2020-04-07 | 大连远景铸造有限公司 | Casting surface air-tight hole technology |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101036933A (en) * | 2007-04-11 | 2007-09-19 | 华中科技大学 | Powderlike mold-releasing agent for die-casing |
| CN101116894A (en) * | 2006-08-01 | 2008-02-06 | 天津市振东涂料有限公司 | Method for preparing metal type casting coating material |
| CN101497105A (en) * | 2009-03-12 | 2009-08-05 | 深圳市景鼎现代科技有限公司 | Cast form water borne coating and technique for preparing the same |
| CN101642796A (en) * | 2009-08-28 | 2010-02-10 | 深圳市景鼎现代科技有限公司 | Formula and preparation process of alcohol group nanometer composite and surface modified dry powder mold paint |
| WO2011110798A1 (en) * | 2010-03-08 | 2011-09-15 | Foseco International Limited | Foundry coating composition |
| CN102527925A (en) * | 2012-02-23 | 2012-07-04 | 新兴铸管股份有限公司 | Method for preparing and constructing pipe die coating |
| CN103394632A (en) * | 2013-08-01 | 2013-11-20 | 湖北工业大学 | Alcohol-based white coating for sand mold cast iron, and preparation method thereof |
| CN103551497A (en) * | 2013-11-04 | 2014-02-05 | 宁夏共享集团有限责任公司 | Production method of alcohol-based flow coating paint for cast iron |
| CN104439048A (en) * | 2014-11-26 | 2015-03-25 | 李铭梁 | Diatomite casting coating and preparation method thereof |
-
2016
- 2016-10-10 CN CN201610886362.4A patent/CN106513570A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101116894A (en) * | 2006-08-01 | 2008-02-06 | 天津市振东涂料有限公司 | Method for preparing metal type casting coating material |
| CN101036933A (en) * | 2007-04-11 | 2007-09-19 | 华中科技大学 | Powderlike mold-releasing agent for die-casing |
| CN101497105A (en) * | 2009-03-12 | 2009-08-05 | 深圳市景鼎现代科技有限公司 | Cast form water borne coating and technique for preparing the same |
| CN101642796A (en) * | 2009-08-28 | 2010-02-10 | 深圳市景鼎现代科技有限公司 | Formula and preparation process of alcohol group nanometer composite and surface modified dry powder mold paint |
| WO2011110798A1 (en) * | 2010-03-08 | 2011-09-15 | Foseco International Limited | Foundry coating composition |
| CN102527925A (en) * | 2012-02-23 | 2012-07-04 | 新兴铸管股份有限公司 | Method for preparing and constructing pipe die coating |
| CN103394632A (en) * | 2013-08-01 | 2013-11-20 | 湖北工业大学 | Alcohol-based white coating for sand mold cast iron, and preparation method thereof |
| CN103551497A (en) * | 2013-11-04 | 2014-02-05 | 宁夏共享集团有限责任公司 | Production method of alcohol-based flow coating paint for cast iron |
| CN104439048A (en) * | 2014-11-26 | 2015-03-25 | 李铭梁 | Diatomite casting coating and preparation method thereof |
Non-Patent Citations (3)
| Title |
|---|
| 徐庆柏等: "《现代铸造涂料及应用》", 31 March 2014 * |
| 李远才: "《铸造造型材料技术问答》", 31 March 2013 * |
| 黄天佑: "《铸造手册第4卷造型材料第3卷》", 30 November 2014 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110538963A (en) * | 2019-10-21 | 2019-12-06 | 徐州市国艺铝合金包装箱有限公司 | Packaging coating suitable for aluminum alloy |
| CN110961571A (en) * | 2020-01-07 | 2020-04-07 | 大连远景铸造有限公司 | Casting surface air-tight hole technology |
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Application publication date: 20170322 |