CN104707934A - Method for preparing aluminum alloy cast coating - Google Patents
Method for preparing aluminum alloy cast coating Download PDFInfo
- Publication number
- CN104707934A CN104707934A CN201510097369.3A CN201510097369A CN104707934A CN 104707934 A CN104707934 A CN 104707934A CN 201510097369 A CN201510097369 A CN 201510097369A CN 104707934 A CN104707934 A CN 104707934A
- Authority
- CN
- China
- Prior art keywords
- alloy cast
- aluminium alloy
- accounts
- preparation
- cast paint
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 229910000838 Al alloy Inorganic materials 0.000 title claims abstract description 35
- 238000000576 coating method Methods 0.000 title claims abstract description 24
- 239000011248 coating agent Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title abstract description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000843 powder Substances 0.000 claims abstract description 21
- 229960000892 attapulgite Drugs 0.000 claims abstract description 20
- 229910052625 palygorskite Inorganic materials 0.000 claims abstract description 20
- 238000002444 silanisation Methods 0.000 claims abstract description 16
- 229920002134 Carboxymethyl cellulose Polymers 0.000 claims abstract description 11
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 claims abstract description 11
- 239000001768 carboxy methyl cellulose Substances 0.000 claims abstract description 11
- 235000010948 carboxy methyl cellulose Nutrition 0.000 claims abstract description 11
- 239000008112 carboxymethyl-cellulose Substances 0.000 claims abstract description 11
- 239000005038 ethylene vinyl acetate Substances 0.000 claims abstract description 11
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 claims abstract description 11
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000000498 ball milling Methods 0.000 claims abstract description 5
- 239000002904 solvent Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 33
- 239000003973 paint Substances 0.000 claims description 21
- 238000002360 preparation method Methods 0.000 claims description 16
- 239000004576 sand Substances 0.000 claims description 12
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims description 10
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims description 10
- 150000002148 esters Chemical class 0.000 claims description 10
- 235000013312 flour Nutrition 0.000 claims description 10
- 239000000377 silicon dioxide Substances 0.000 claims description 10
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims description 10
- 239000004744 fabric Substances 0.000 claims description 4
- 230000001680 brushing effect Effects 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 229920002545 silicone oil Polymers 0.000 claims description 3
- 239000000203 mixture Substances 0.000 abstract description 4
- 239000011148 porous material Substances 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 2
- RSWGJHLUYNHPMX-ONCXSQPRSA-N abietic acid Chemical compound C([C@@H]12)CC(C(C)C)=CC1=CC[C@@H]1[C@]2(C)CCC[C@@]1(C)C(O)=O RSWGJHLUYNHPMX-ONCXSQPRSA-N 0.000 abstract 1
- 238000001354 calcination Methods 0.000 abstract 1
- 238000005336 cracking Methods 0.000 abstract 1
- 239000003921 oil Substances 0.000 abstract 1
- 229910052710 silicon Inorganic materials 0.000 abstract 1
- 239000010703 silicon Substances 0.000 abstract 1
- 239000011863 silicon-based powder Substances 0.000 abstract 1
- 238000010025 steaming Methods 0.000 abstract 1
- 238000005266 casting Methods 0.000 description 9
- 230000007547 defect Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000002966 varnish Substances 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000002383 tung oil Substances 0.000 description 2
- 239000006004 Quartz sand Substances 0.000 description 1
- 206010039509 Scab Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000010409 ironing Methods 0.000 description 1
- 239000003110 molding sand Substances 0.000 description 1
- 238000009991 scouring Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
- Paints Or Removers (AREA)
Abstract
The invention belongs to the field of functional coatings, and in particular relates to a method for preparing an aluminum alloy cast coating. The method specifically comprises the following steps: 1) dispersing attapulgite and silicon oil into an ethanol solvent in a mass ratio of 1:3, backflowing and stirring for 2-4 hours at the water bath temperature of 40-60 DEG C, steaming to dry at the water bath temperature of 90 DEG C, and finally transferring the mixture to a muffle furnace for calcinations, thereby preparing a silanization attapulgite powder material; 2) putting the silanization attapulgite powder material prepared in the step 1), silicon powder, ethylene-vinyl acetate, abietate, carboxymethyl cellulose and ethanol into a wet type ball-milling machine for ball-milling for 2-4 hours, thereby preparing the aluminum alloy cast coating. The method has the advantages that firstly, the coating is relatively good in viscosity, good in high-temperature anti-cracking property and good in high-temperature strength, and secondly, due to the adoption of the nano boron nitride powder, the heat conductivity of the coating is improved, the curing speed of a cast piece is increased, and thus the tendency of pores and micro cracks of an aluminum alloy cast piece is reduced.
Description
Technical field
The invention belongs to field of functional coatings, be specifically related to a kind of preparation method of aluminium alloy cast paint.
Background technology
As structural material, compared with iron and steel, it is little that aluminium alloy has density, specific strength advantages of higher, day by day increases at field consumptions such as Aeronautics and Astronautics, automobile, medicine equipments.In aluminium alloy castings production process, especially in the aluminium alloy castings manufacture process that band is porose, a large amount of hole defects can be produced near pore structure, cause aluminium alloy castings performance especially the declining to a great extent of mechanical property and sealing property, cause yield rate low, mass energy is wasted, and brings loss to production.Research for aluminium alloy Hole defect becomes the study hotspot of casting aluminum alloy already, but never effectively process is to control or to eliminate this type of hole defect.
CN103752809 A discloses a kind of method eliminating aluminium alloy castings hole defect, and specifically disclose following technical characteristic: before lower core, use hairbrush or felt-cloth evenly to brush at chill in deployed varnish, when varnish is not dry, evenly sprinkle dry sand, natural drying 10 ~ 15 minutes, makes dry sand stick on chill; Chill is placed in sand mold; Again foundry goods is poured into a mould.
CN102228979 A discloses a kind of casting method of major diameter fluid coupling aluminum alloy impeller assembly, and specifically disclose following technical characteristic: in casting mold cavity, place chill, chill first coats tung oil, sprinkle quartz sand, be positioned over appropriate location in die cavity again after oven dry, then foundry goods is poured into a mould.
In the scheme of above-mentioned prior art, varnish and tung oil all belong to common coating, and Birmasil coating should possess following performance requirement, and namely coating should have good wetability and caking property, good high-temperature resistant property and elevated temperature strength.
Summary of the invention
The present invention is directed to deficiency that prior art exists and a kind of preparation method of aluminium alloy cast paint is provided, the present invention is to chill sprayed coating, make cold ironing surface scab effective, at high temperature can not come off because of fluid scouring, thus eliminate the source of hole defect formation, and then eliminate this type of hole defect completely.
The technical scheme realizing the object of the invention is: a kind of preparation method of aluminium alloy cast paint, is characterized in that preparation process is as follows:
Step 1) by attapulgite and silicone oil in mass ratio for 1:3 is scattered in alcohol solvent, return stirring 2 ~ 4 hours at bath temperature 40 ~ 60 DEG C, then evaporate to dryness at bath temperature 90 DEG C, is finally transferred in Muffle furnace and carries out roasting, obtained silanization attapulgite powder;
Step 2) silanization attapulgite powder, silica flour, ethylene-vinyl acetate, rosin ester, carboxymethyl cellulose and ethanol that step 1) is obtained are put into wet ball mill ball milling 2 ~ 4 hours, i.e. obtained aluminium alloy cast paint.
In preparation process 2 of the present invention) in, by weight percentage, described silanization attapulgite powder accounts for 30 ~ 40%, ethylene-vinyl acetate accounts for 10 ~ 20%, silica flour accounts for 15 ~ 30%, rosin ester accounts for 10 ~ 20%, carboxymethyl cellulose accounts for 3 ~ 8%, ethanol balance.
Preferably, by weight percentage, described silanization attapulgite powder accounts for 30%, ethylene-vinyl acetate accounts for 20%, silica flour accounts for 15%, rosin ester accounts for 20%, carboxymethyl cellulose accounts for 8%, ethanol balance.
Further preferably, in step 2) in, by weight percentage, this coating also comprises: nano boron nitride powder 0.5 ~ 2%.
The present invention selects hairbrush or felt-cloth evenly to brush on the surface of chill by obtained aluminium alloy cast paint, and brushing thickness is 0.3 ~ 0.6mm.When coating is not dry, sprinkle dry sand uniformly, dry sand is sticked on chill.Described dry sand particle diameter is less than 200 orders.
The invention has the advantages that:
1) coating of the present invention possesses good viscosity, good high-temperature resistant property and elevated temperature strength, especially with the addition of after the attapulgite of silanization treatment, further improves the performance of coating.
2) nano boron nitride powder that the present invention selects can improve the heat conductivility of coating, improves the setting rate of foundry goods, thus reduces the tendency of aluminium alloy castings pore and micro-crack.Further, the nano boron nitride powder of interpolation at high temperature can improve binding strength and the tight ness rating of coating and molding sand, reduces the porosity in coating.
Detailed description of the invention
Below in conjunction with embodiment the present invention done and describe further.
The preparation method of a kind of aluminium alloy cast paint of the present invention, its preparation process is:
Step 1) by attapulgite and silicone oil in mass ratio for 1:3 is scattered in alcohol solvent; return stirring 2 ~ 4 hours at bath temperature 40 ~ 60 DEG C; then evaporate to dryness at bath temperature 90 DEG C; finally be transferred in Muffle furnace and carry out roasting; obtained silanization attapulgite powder; roasting condition is: sintering temperature 300 ~ 450 DEG C, roasting time 3 ~ 6 hours;
Step 2) silanization attapulgite powder, silica flour, ethylene-vinyl acetate, rosin ester, carboxymethyl cellulose and ethanol that step 1) is obtained are put into wet ball mill ball milling 2 ~ 4 hours, i.e. obtained aluminium alloy cast paint.
embodiment 1
Obtained aluminium alloy cast paint, consists of the following composition: silanization attapulgite powder 30%, ethylene-vinyl acetate 20%, silica flour 15%, rosin ester 20%, carboxymethyl cellulose 8%, ethanol balance.
embodiment 2
Obtained aluminium alloy cast paint, consists of the following composition: silanization attapulgite powder 40%, ethylene-vinyl acetate 16%, silica flour 20%, rosin ester 15%, carboxymethyl cellulose 5%, ethanol balance.
embodiment 3
Obtained aluminium alloy cast paint, consists of the following composition: silanization attapulgite powder 34%, ethylene-vinyl acetate 10%, silica flour 30%, rosin ester 10%, carboxymethyl cellulose 3%, ethanol balance.
embodiment 4
In order to improve the heat conductivility of coating, reduce the tendency of aluminium alloy castings pore and micro-crack.Aluminium alloy cast paint obtained by the present invention also comprises: nano boron nitride powder 0.5 ~ 2%.
When concrete this coating of use, preferably evenly brush with hairbrush or felt-cloth on the surface of chill by coating, brushing thickness is 0.3 ~ 0.6mm.When coating is not dry, sprinkle dry sand uniformly, dry sand is sticked on chill.Described dry sand particle diameter is less than 200 orders.
Above according to desirable embodiment of the present invention for enlightenment, by above-mentioned description, related personnel in the scope not departing from this invention technological thought, can carry out various change and amendment completely.The technical scope of this invention is not limited to the content on description, must determine technical scope according to right.
Claims (7)
1. a preparation method for aluminium alloy cast paint, is characterized in that preparation process is as follows:
Step 1) by attapulgite and silicone oil in mass ratio for 1:3 is scattered in alcohol solvent, return stirring 2 ~ 4 hours at bath temperature 40 ~ 60 DEG C, then evaporate to dryness at bath temperature 90 DEG C, is finally transferred in Muffle furnace and carries out roasting, obtained silanization attapulgite powder;
Step 2) silanization attapulgite powder, silica flour, ethylene-vinyl acetate, rosin ester, carboxymethyl cellulose and ethanol that step 1) is obtained are put into wet ball mill ball milling 2 ~ 4 hours, i.e. obtained aluminium alloy cast paint.
2. the preparation method of a kind of aluminium alloy cast paint according to claim 1, it is characterized in that: in step 2) in, by weight percentage, described silanization attapulgite powder accounts for 30 ~ 40%, ethylene-vinyl acetate accounts for 10 ~ 20%, silica flour accounts for 15 ~ 30%, rosin ester accounts for 10 ~ 20%, carboxymethyl cellulose accounts for 3 ~ 8%, ethanol balance.
3. the preparation method of a kind of aluminium alloy cast paint according to claim 2, it is characterized in that: by weight percentage, described silanization attapulgite powder accounts for 30%, ethylene-vinyl acetate accounts for 20%, silica flour accounts for 15%, rosin ester accounts for 20%, carboxymethyl cellulose accounts for 8%, ethanol balance.
4. the preparation method of a kind of aluminium alloy cast paint according to Claims 2 or 3, is characterized in that: in step 2) in, by weight percentage, this coating also comprises: nano boron nitride powder 0.5 ~ 2%.
5. the preparation method of a kind of aluminium alloy cast paint according to claim 4, is characterized in that: evenly brush with hairbrush or felt-cloth on the surface of chill by obtained aluminium alloy cast paint, brushing thickness is 0.3 ~ 0.6mm.
6. the preparation method of a kind of aluminium alloy cast paint according to claim 5, is characterized in that: when coating is not dry, sprinkle dry sand uniformly, dry sand is sticked on chill.
7. the preparation method of a kind of aluminium alloy cast paint according to claim 6, is characterized in that: described dry sand particle diameter is less than 200 orders.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510097369.3A CN104707934B (en) | 2015-03-05 | 2015-03-05 | A kind of preparation method of aluminium alloy cast paint |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510097369.3A CN104707934B (en) | 2015-03-05 | 2015-03-05 | A kind of preparation method of aluminium alloy cast paint |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104707934A true CN104707934A (en) | 2015-06-17 |
| CN104707934B CN104707934B (en) | 2016-07-20 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510097369.3A Active CN104707934B (en) | 2015-03-05 | 2015-03-05 | A kind of preparation method of aluminium alloy cast paint |
Country Status (1)
| Country | Link |
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| CN (1) | CN104707934B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077442A (en) * | 2016-06-29 | 2016-11-09 | 无锡康柏斯机械科技有限公司 | A kind of aluminium alloy automobile hub foundry facing |
| CN106111951A (en) * | 2016-06-29 | 2016-11-16 | 无锡康柏斯机械科技有限公司 | A kind of casting technique of aluminium alloy wheel hub |
| CN107243594A (en) * | 2017-06-14 | 2017-10-13 | 合肥市旺友门窗有限公司 | A kind of used in aluminium alloy casting insulating refractory coating and preparation method thereof |
| CN108129920A (en) * | 2017-12-06 | 2018-06-08 | 安徽金达节能材料发展有限公司 | One kind is used for aluminium alloy casting metal coating |
| CN114406229A (en) * | 2021-12-31 | 2022-04-29 | 来安县科来兴实业有限责任公司 | Method for casting wax pattern by using chill |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080011195A1 (en) * | 2004-06-04 | 2008-01-17 | Peter Grochal | Coating Composition |
| CN101992263A (en) * | 2010-11-08 | 2011-03-30 | 上海市机械制造工艺研究所有限公司 | Process for large high-alloy steel resin bonded sand mould composite coating |
| CN103302237A (en) * | 2013-06-21 | 2013-09-18 | 三门峡阳光铸材有限公司 | V-method casting coating and preparation method thereof |
| CN104014719A (en) * | 2014-05-09 | 2014-09-03 | 方学军 | High-performance alcohol-base casting paint and production method thereof |
| CN104014727A (en) * | 2014-05-09 | 2014-09-03 | 方学军 | Modified rosin type alcohol-based casting coating and preparation method thereof |
-
2015
- 2015-03-05 CN CN201510097369.3A patent/CN104707934B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080011195A1 (en) * | 2004-06-04 | 2008-01-17 | Peter Grochal | Coating Composition |
| CN101992263A (en) * | 2010-11-08 | 2011-03-30 | 上海市机械制造工艺研究所有限公司 | Process for large high-alloy steel resin bonded sand mould composite coating |
| CN103302237A (en) * | 2013-06-21 | 2013-09-18 | 三门峡阳光铸材有限公司 | V-method casting coating and preparation method thereof |
| CN104014719A (en) * | 2014-05-09 | 2014-09-03 | 方学军 | High-performance alcohol-base casting paint and production method thereof |
| CN104014727A (en) * | 2014-05-09 | 2014-09-03 | 方学军 | Modified rosin type alcohol-based casting coating and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 高华: "凹凸棒土的改性与应用研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106077442A (en) * | 2016-06-29 | 2016-11-09 | 无锡康柏斯机械科技有限公司 | A kind of aluminium alloy automobile hub foundry facing |
| CN106111951A (en) * | 2016-06-29 | 2016-11-16 | 无锡康柏斯机械科技有限公司 | A kind of casting technique of aluminium alloy wheel hub |
| CN106077442B (en) * | 2016-06-29 | 2018-02-09 | 无锡康柏斯机械科技有限公司 | A kind of aluminium alloy automobile hub foundry facing |
| CN107243594A (en) * | 2017-06-14 | 2017-10-13 | 合肥市旺友门窗有限公司 | A kind of used in aluminium alloy casting insulating refractory coating and preparation method thereof |
| CN108129920A (en) * | 2017-12-06 | 2018-06-08 | 安徽金达节能材料发展有限公司 | One kind is used for aluminium alloy casting metal coating |
| CN114406229A (en) * | 2021-12-31 | 2022-04-29 | 来安县科来兴实业有限责任公司 | Method for casting wax pattern by using chill |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104707934B (en) | 2016-07-20 |
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Effective date of registration: 20191106 Address after: Magi Road, Changshu high tech Industrial Development Zone, Suzhou City, Jiangsu Province, No. 1 215500 Patentee after: SUZHOU JUHUIBANG NEW MATERIAL TECHNOLOGY Co.,Ltd. Address before: 215400 Suzhou City, Taicang Province Economic Development Zone, Beijing West Road, No. 1, building 6, No. Patentee before: SUZHOU YUXI NEW MATERIAL TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20191129 Address after: 215400 Suzhou City, Taicang Province Economic Development Zone, Beijing West Road, No. 1, building 6, No. Patentee after: SUZHOU YUXI NEW MATERIAL TECHNOLOGY Co.,Ltd. Address before: Magi Road, Changshu high tech Industrial Development Zone, Suzhou City, Jiangsu Province, No. 1 215500 Patentee before: SUZHOU JUHUIBANG NEW MATERIAL TECHNOLOGY Co.,Ltd. |
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Effective date of registration: 20231101 Address after: Building A7, Jinjiu Standard Factory, No. 36 Chuangye Road, Shuangfu Street, Jiangjin District, Chongqing, 402260 Patentee after: Chongqing Magona Technology Co.,Ltd. Address before: 215400 1 1 Beijing West Road, Taicang Economic Development Zone, Suzhou, Jiangsu. Patentee before: SUZHOU YUXI NEW MATERIAL TECHNOLOGY Co.,Ltd. |