CN102909317A - Sand casting wood former and production method thereof - Google Patents
Sand casting wood former and production method thereof Download PDFInfo
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- CN102909317A CN102909317A CN2011102237573A CN201110223757A CN102909317A CN 102909317 A CN102909317 A CN 102909317A CN 2011102237573 A CN2011102237573 A CN 2011102237573A CN 201110223757 A CN201110223757 A CN 201110223757A CN 102909317 A CN102909317 A CN 102909317A
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Abstract
The invention discloses a sand casting wood former and a production method thereof. The wood former comprises a wood former main body and a protection layer which is arranged on the surface of the main body, wherein the outer surface of the protection layer is also provided with a wear-resistant layer, the wear-resistant layer is a coating formed by paint which is formed by mixing epoxy resin, green wear-resistant solidifier and diluent, and the production method of the wood former comprises treatment steps such as grinding, paint brushing, wear-resistant paint spraying and the like after the wood former is primarily formed through the numerical-control machining way. According to the sand casting wood former, the wear-resistant layer is arranged outside the protection layer, the wear-resistant layer not only can improve the wear resistance of the wood former so as to further prolong the service life of the wood former, but also can reduce the roughness of the surface of the wood former, so that the surface precision of a sand mold can be improved, and the surface quality of a cast can be further improved.
Description
Technical field
The present invention relates to the sand mold casting mold technical field, relate in particular a kind of sand casting wooden model and preparation method thereof.
Background technology
For small lot sand casting; Large Sand mold casting particularly; for saving cost; its sand mold casting mold uses the wooden model of being made by timber usually; trial-produce period is long; generally; after Wooden Pattern Making is finished; need to be coated with on the wooden model surface last layer zapon or shellac varnish, with the protection wooden model, but because zapon and shellac varnish are not wear-resisting; therefore after having used a period of time; the zapon on wooden model top layer or shellac varnish will be worn, and its protection was lost efficacy, thereby cause the wooden model lost of life; and along with the variation of weather; wooden model also can produce suction because of the variation of air humidity; dry variation, so that the structural slab of wooden model and the inefficacy of the viscose glue between the structural slab and cracking or distortion, and then cause the wooden model lost of life.This situation is for the long Large Sand mold casting wooden model of complex structure, life cycle, performance more obvious.
Summary of the invention
The invention provides a kind of sand casting wooden model and preparation method thereof, this sand casting wooden model is provided with one deck wearing layer outside its protective layer, this wearing layer can not only improve the wearability of wooden model and then prolong the service life of wooden model, can also reduce the roughness on wooden model surface, improve the sand mold surface accuracy, and then improve the surface quality of foundry goods; The preparation method of this wooden model be wooden model through digital control processing just polish again behind the one-step forming, the processing such as mopping, spray paint, so namely can be made into aforesaid sand casting wooden model.
The present invention adopts following technical scheme to realize above-mentioned purpose: a kind of sand casting wooden model; comprise the wooden model main body and be located at the protective layer of this body surfaces; outer surface at this protective layer also is provided with one deck wearing layer, the coating that this wearing layer consists of for the coating that is reconciled into by epoxy resin and blue or green wear-resisting curing agent and diluent.
As further specifying of such scheme:
Preferably, the thickness of described wearing layer is 0.2mm～0.3mm.
Preferably, the weight proportion of described epoxy resin and blue or green wear-resisting curing agent is (10～15): 1.
Preferably, the coating of described protective layer for being consisted of by zapon or shellac varnish.
The preparation method of above-mentioned sand casting wooden model may further comprise the steps:
(1) will be through the just wooden model of one-step forming emery cloth manual grinding polishing of digital control processing;
(2) three zapons of the brush of the wooden model outer surface after polishing or shellac varnish are to form protective layer, and the time interval of per twice brushing is no less than 2 hours, after lacquer is done, and the manual emery cloth sanding and polishing of using;
(3) epoxy resin and blue or green wear-resisting curing agent are pressed (10～15): 1 weight ratio reconciles into wear-resistant paint, again itself and diluent are pressed (5～7): 1 weight ratio dilution, then brush or spray twice on the wooden model surface and form wearing layer, the thickness of wearing layer is 0.15～0.2mm, and the time interval of twice brushing or spraying is no less than 22 hours;
(4) behind the wearing layer dry solidification, with its sanding and polishing, again spray the described wear-resistant paint of step 3 with emery cloth, make wearing layer be increased to 0.2～0.3mm, after its drying, namely finish the surface treatment of wooden model.
As further specifying of such scheme:
Preferably, the weight proportion of described epoxy resin, blue or green wear-resisting curing agent, diluent is 72: 6: 13.
Preferably, described diluent is acetone, methyl alcohol, ethanol or butanols.
The beneficial effect that the present invention adopts above technical scheme to reach is:
1. sand casting wooden model of the present invention not only is provided with the protective layer that is formed by varnish or shellac varnish at the wooden model outer surface; it is wear-resisting also to be provided with one deck outside this protective layer; this structure can not only make the timber blank of wooden model and air, aqueous vapor completely cut off; improved the stability of timber blank; can also reduce the wooden model surface roughness; strengthen wooden model surface strength and anti-wear performance, and then prolonged the service life of wooden model.
2. sand casting Wooden Pattern Making method of the present invention, step is simple and clear, easy to operate, the wooden model appearance looks elegant of not only making, and also stability is high, wearability is good, has greatly prolonged the service life of wooden model.
Description of drawings
Fig. 1 is the cross-sectional schematic of sand casting wooden model of the present invention;
Fig. 2 is the partial enlarged drawing A of the described sand casting wooden model of Fig. 1.
Description of reference numerals:
1-wooden model main body, 2-zapon layer, 3-wearing layer.
The specific embodiment
For further setting forth 26S Proteasome Structure and Function of the present invention, below in conjunction with accompanying drawing and preferred embodiment the present invention is elaborated, but be to be understood that protection scope of the present invention is not subjected to the restriction of the specific embodiment.
Fig. 1 and Fig. 2 are respectively cross-sectional schematic and its partial enlarged drawing A of sand casting wooden model of the present invention, as shown in FIG., this wooden model comprises wooden model main body 1 and is located at the zapon layer 2 of this body surfaces, outer surface at this zapon layer 2 also is provided with one deck wearing layer 3, the coating that this wearing layer 3 consists of for the coating that is reconciled into by epoxy resin and blue or green wear-resisting curing agent and diluent, the thickness of this wearing layer 3 is 0.3mm, and wherein the weight ratio of epoxy resin and blue or green wear-resisting curing agent is 12: 1.
The preparation method of sand casting wooden model of the present invention may further comprise the steps:
(1) will be through the just wooden model of one-step forming emery cloth manual grinding polishing of digital control processing;
(2) three zapons of the brush of wooden model main body 1 outer surface after polishing are to form zapon layer 2, and the time interval of per twice brushing is 3 hours, after zapon dries, and the manual emery cloth sanding and polishing of using;
(3) epoxy resin and blue or green wear-resisting curing agent are reconciled into wear-resistant paint by 12: 1 weight ratio, again itself and acetone are diluted by 6: 1 weight ratio, then brush twice on zapon layer 2 surface and form wearing layer 3, consumption can be decided according to the size of wooden model, need in the time of not in time to replenish, the thickness that makes wearing layer 3 is that 0.2mm gets final product, and notices preventing that lacquer painting from shedding tears, and the time interval of twice brushing is 24 hours;
(4) behind wearing layer 3 dry solidifications, with its sanding and polishing, spray again the described wear-resistant paint of step 3 with emery cloth, make wearing layer 3 be increased to 0.3mm, after its drying, namely finish the making of wooden model.
Only for one of preferred embodiment of the present invention, can not limit to the present invention with this shown in the above embodiment of the present invention and the accompanying drawing, under the condition that does not break away from marrow of the present invention, any change that those skilled in the art do all belongs to protection scope of the present invention.
Claims (7)
1. sand casting wooden model; comprise the wooden model main body and be located at the protective layer of this body surfaces; it is characterized in that, also be provided with one deck wearing layer at the outer surface of this protective layer, the coating that this wearing layer consists of for the coating that is reconciled into by epoxy resin, blue or green wear-resisting curing agent and diluent.
2. sand casting wooden model according to claim 1 is characterized in that, the thickness of described wearing layer is 0.2mm～0.3mm.
3. sand casting wooden model according to claim 1 and 2 is characterized in that, the weight proportion of described epoxy resin and blue or green wear-resisting curing agent is (10～15): 1.
4. sand casting wooden model according to claim 1 and 2 is characterized in that, the coating of described protective layer for being made of zapon or shellac varnish.
5. the preparation method of a sand casting wooden model is characterized in that, may further comprise the steps:
(1) will be through the just wooden model of one-step forming emery cloth manual grinding polishing of digital control processing;
(2) three zapons of the brush of the wooden model outer surface after polishing or shellac varnish are to form protective layer, and the time interval of per twice brushing is no less than 2 hours, after lacquer is done, and the manual emery cloth sanding and polishing of using;
(3) epoxy resin and blue or green wear-resisting curing agent are pressed (10～15): 1 weight ratio reconciles into wear-resistant paint, again itself and diluent are pressed (5～7): 1 weight ratio dilution, then brush or spray twice on the wooden model surface and form wearing layer, the thickness of wearing layer is 0.15～0.2mm, and the time interval of twice brushing or spraying is no less than 22 hours;
(4) behind the wearing layer dry solidification, with its sanding and polishing, again spray the described wear-resistant paint of step 3 with emery cloth, make wearing layer be increased to 0.2～0.3mm, after its drying, namely finish the surface treatment of wooden model.
6. the preparation method of sand casting wooden model according to claim 5 is characterized in that, the weight ratio of described epoxy resin, blue or green wear-resisting curing agent, diluent is preferably 72: 6: 13.
7. according to claim 5 or the preparation method of 6 described sand casting wooden models, it is characterized in that described diluent is acetone, methyl alcohol, ethanol or butanols.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201110223757.3A CN102909317B (en) | 2011-08-05 | 2011-08-05 | Sand casting wood former and production method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110223757.3A CN102909317B (en) | 2011-08-05 | 2011-08-05 | Sand casting wood former and production method thereof |
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| CN102909317A true CN102909317A (en) | 2013-02-06 |
| CN102909317B CN102909317B (en) | 2015-03-25 |
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| CN201110223757.3A Active CN102909317B (en) | 2011-08-05 | 2011-08-05 | Sand casting wood former and production method thereof |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215266A (en) * | 2015-09-21 | 2016-01-06 | 蚌埠冠宜型材科技有限公司 | A kind of casting Wooden Pattern Making method of high stability |
| CN105215265A (en) * | 2015-09-21 | 2016-01-06 | 蚌埠冠宜型材科技有限公司 | A kind of wooden model casting use |
| CN106001415A (en) * | 2016-07-14 | 2016-10-12 | 辽宁森远增材制造科技有限公司 | Sand mold laser 3D printing method based on layered entity manufacture |
| CN106541080A (en) * | 2016-12-05 | 2017-03-29 | 宁夏共享模具有限公司 | A kind of method for improving wooden model plane fineness |
| CN107225212A (en) * | 2017-06-23 | 2017-10-03 | 河池市森机械有限责任公司 | The preparation method for casting wooden model |
| CN108499829A (en) * | 2018-04-19 | 2018-09-07 | 西安增材制造国家研究院有限公司 | A kind of surface treatment method of the wooden master mold of electric arc spraying mold |
| CN110666102A (en) * | 2019-09-23 | 2020-01-10 | 长兴小浦铸钢有限公司 | Manufacturing process of grinding roller seat |
| CN111391190A (en) * | 2020-03-30 | 2020-07-10 | 大连日瑞铸模有限公司 | Composite resin casting mold and manufacturing method thereof |
| CN111590015A (en) * | 2020-04-12 | 2020-08-28 | 辽宁华圣模具有限公司 | Casting mold material for numerical control machining and mold manufacturing method |
| CN114700467A (en) * | 2022-04-19 | 2022-07-05 | 中国航发动力股份有限公司 | Method for solving layering of wax mold and core of precision casting |
| CN115770860A (en) * | 2022-12-28 | 2023-03-10 | 淄博水环真空泵厂有限公司 | Casting process of dry type screw vacuum pump rotor |
| CN114700467B (en) * | 2022-04-19 | 2024-04-26 | 中国航发动力股份有限公司 | Method for solving layering of wax mould and core of precision casting |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105215266A (en) * | 2015-09-21 | 2016-01-06 | 蚌埠冠宜型材科技有限公司 | A kind of casting Wooden Pattern Making method of high stability |
| CN105215265A (en) * | 2015-09-21 | 2016-01-06 | 蚌埠冠宜型材科技有限公司 | A kind of wooden model casting use |
| CN106001415A (en) * | 2016-07-14 | 2016-10-12 | 辽宁森远增材制造科技有限公司 | Sand mold laser 3D printing method based on layered entity manufacture |
| CN106541080B (en) * | 2016-12-05 | 2019-01-08 | 共享智能装备有限公司 | A method of improving wooden model plane finish |
| CN106541080A (en) * | 2016-12-05 | 2017-03-29 | 宁夏共享模具有限公司 | A kind of method for improving wooden model plane fineness |
| CN107225212A (en) * | 2017-06-23 | 2017-10-03 | 河池市森机械有限责任公司 | The preparation method for casting wooden model |
| CN108499829A (en) * | 2018-04-19 | 2018-09-07 | 西安增材制造国家研究院有限公司 | A kind of surface treatment method of the wooden master mold of electric arc spraying mold |
| CN110666102A (en) * | 2019-09-23 | 2020-01-10 | 长兴小浦铸钢有限公司 | Manufacturing process of grinding roller seat |
| CN111391190A (en) * | 2020-03-30 | 2020-07-10 | 大连日瑞铸模有限公司 | Composite resin casting mold and manufacturing method thereof |
| CN111391190B (en) * | 2020-03-30 | 2022-02-15 | 大连日瑞铸模有限公司 | Composite resin casting mold and manufacturing method thereof |
| CN111590015A (en) * | 2020-04-12 | 2020-08-28 | 辽宁华圣模具有限公司 | Casting mold material for numerical control machining and mold manufacturing method |
| CN114700467A (en) * | 2022-04-19 | 2022-07-05 | 中国航发动力股份有限公司 | Method for solving layering of wax mold and core of precision casting |
| CN114700467B (en) * | 2022-04-19 | 2024-04-26 | 中国航发动力股份有限公司 | Method for solving layering of wax mould and core of precision casting |
| CN115770860A (en) * | 2022-12-28 | 2023-03-10 | 淄博水环真空泵厂有限公司 | Casting process of dry type screw vacuum pump rotor |
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| CN102909317B (en) | 2015-03-25 |
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