CN103182486A - Method for coating alloy metal mould casting die - Google Patents
Method for coating alloy metal mould casting die Download PDFInfo
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- CN103182486A CN103182486A CN2011104445388A CN201110444538A CN103182486A CN 103182486 A CN103182486 A CN 103182486A CN 2011104445388 A CN2011104445388 A CN 2011104445388A CN 201110444538 A CN201110444538 A CN 201110444538A CN 103182486 A CN103182486 A CN 103182486A
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Abstract
The invention relates to a method for coating an alloy metal mould casting die, wherein coatings for the die in the method disclosed by the invention are DAG395 heat-insulating coating and PRODAG release agent. A coating process for a heat-insulating layer comprises the following steps of: firstly, thoroughly eliminating foreign matters on the surface of the die; secondly, preheating the die to 150-230 DEG C, and eliminating oxides on the surface of the die by a steel wire brush; and finally, spraying the diluted DAG395 heat-insulating coating with a thickness of 0.3-0.5 mm at a die surface temperature of 150-230 DEG C, wherein the die surface temperature is greater than 95 DEG C during the coating of the release agent, and the spraying mode is a mist-spraying method, so that the thicknesses of the coated surface film are balanced and consistent. With the adoption of the method disclosed by the invention, protection for the alloy metal mould casting die and the heat-insulating effect of preventing alloy solution from being rapidly condensed are realized; the casting defects of loosening, heat-cracking, oxidization slag inclusion and the like are not easy to generate; and a compact organization and a high-quality casting are obtained.
Description
Technical field
The present invention relates to the method that a kind of Birmasil permanent mold casting mould applies, particularly a kind of method of ZL205A alloying metal mold casting mould coating.
Background technology
ZL205A belongs to Solder for Al-Cu Joint Welding-manganese system high-strength degree Birmasil, is the highest a kind of of tensile strength in the present cast aluminium alloy material, and material has good comprehensive mechanical properties behind heat treatment T5 state.This alloy strengthening element is many, and crystal grain obtains refinement, can obtain different performances under different heat treating regimes, is characterized in the intensity height, and plasticity is good, the hardness height, and machining property is good, and the surface rational faculty is good.
But being alloy, Solder for Al-Cu Joint Welding belongs to the alloy of solid solution build, casting character is bad, solidification temperature range wideer (having surpassed 100 ℃), degree of supercooling is little when solidifying, develop into thick dendrite or equiaxed grain structure easily, strengthen hot cracking tendency and the microporosity tendency of foundry goods, therefore be difficult for realizing consecutive solidification, sectional sensitivity is big, easily produces loose, hot tearing, casting flaws such as oxide slag inclusion, casting technique is required high, need to strengthen Quench, strengthen feeding and take necessary technological measure in running gate system, create big thermograde, form consecutive solidification condition preferably, could obtain fine and close tissue and premium casting, give full play to the high-strength characteristic of ZL205A alloy.
Summary of the invention
In order to solve the problems of the technologies described above, the method that the object of the present invention is to provide a kind of ZL205A alloying metal mold casting mould to apply.Utilize the present invention, can effectively prevent generation loose in the ZL205A alloying metal mold casting process, crack defect.
The technical scheme that the present invention adopts for its technical problem of solution is, the method that a kind of ZL205A alloying metal mold casting mould applies, and this method comprises the steps:
(1) selection of coating
Coating is DAG395 thermal insulation coatings and PRODAG releasing agent coating, and DAG395 thermal insulation coatings main component is vermiculite and water, and content is 36%, and first the use by dilution in 1: 4 can be adjusted during actual the use on demand voluntarily; The main component of PRODAG releasing agent coating is fine-grain graphite and water, and content is 30%, and first the use by dilution in 1: 10 can be adjusted during actual the use on demand voluntarily;
(2) brushing of heat preservation protective layer
Secondly at first thoroughly remove the foreign matter of die surface,, with mould and die preheating to 150 ℃～230 ℃, remove the oxide of die surface with wire brush; At last, under 150 ℃～230 ℃ mold face temperature, the DAG395 thermal insulation coatings of spraying dilution (extension rate is optionally adjusted voluntarily), thickness is 0.3mm～0.5mm, and the dead head place is the thickest, and the place is the thinnest away from cast gate, by being as thin as thick transition gradually, every layer of need spray thinly and are even;
(3) brushing of releasing agent
During the releasing agent brushing, mold face temperature should be more than 95 ℃, and spraying method is spray method, make to be coated with the balanced unanimity of facial mask thickness.
When described DAG395 thermal insulation coatings and the dilution of PRODAG releasing agent coating, used dilution water is distilled water, ion exchange water or soft water.
Sprayed behind the coating before the mold work, mould need be heated to more than 350 ℃.
Beneficial effect of the present invention and advantage are: owing to take above-mentioned technological measure, realized preventing generation loose in the ZL205A alloying metal mold casting process, crack defect.Be conducive to foundry goods and realize consecutive solidification, improved dead head feeding effect, foundry goods does not crack defective, and casting flaws such as difficult generation is loose, hot tearing, oxide slag inclusion obtain fine and close tissue and premium casting, loosen and satisfy the requirement of I class foundry goods.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.
ZL205A belongs to solid solution build alloy, and foundry goods produces loose big with hot tearing row tendency, again because permanent mold casting belongs to diecasting, and mould Quench degree is big, and deformability is poor, has increased the weight of to loosen and the crackle tendency.
Following examples of the present invention reach the purpose that makes the foundry goods consecutive solidification and improve dead head feeding effect by the coating to the permanent mold casting mould, take following processing step:
The selection of step 1, coating
1, DAG-395 thermal insulation coatings
DAG-395 thermal insulation coatings main component is vermiculite and water, and content is 36%, and first the use by dilution in 1: 4 can be adjusted during actual the use on demand voluntarily, and used dilution water is distilled water, ion exchange water or soft water;
The DAG-395 thermal insulation coatings has following characteristic: strong (2) thermal insulation of (1) tack is reliable, can prevent that the rapid condensation of alloy (3) control alloy from flowing to, and keeps its highly plastic.Can realize the purpose of foundry goods consecutive solidification and raising dead head feeding effect by the control coating layer thickness.
2, PRODAG releasing agent
The PRODAG releasing agent is the releasing agent for the supporting design of DAG-395, main component is fine-grain graphite and water, and content is 30%, the first use by dilution in 1: 10, can adjust voluntarily on demand during actual the use, used dilution water is distilled water, ion exchange water or soft water.
The PRODAG releasing agent has following characteristic: (1) demoulding ability is strong; (2) high wear resistance, protection heat insulation coating and mould.
The brushing of step 2, heat preservation protective layer
1, thoroughly removes the foreign matter of die surface;
2, with mould and die preheating to 150 ℃～230 ℃, remove the oxide of die surface with wire brush;
3, under 150 ℃～230 ℃ mold face temperature, the DAG395 thermal insulation coatings of spraying dilution (extension rate is optionally adjusted voluntarily), thickness is 0.3mm～0.5mm, the dead head place is the thickest, the place is the thinnest away from cast gate, and by being as thin as thick transition gradually, every layer of need spray thinly and be even.
The brushing of step 3, releasing agent
1, mold face temperature should be more than 95 ℃;
2, spraying method is spray method, makes to be coated with the balanced unanimity of facial mask thickness.
The mould that has sprayed coating need be heated to more than 350 ℃ starts working again.
Above-described embodiment is interpreted as only being used for explanation the present invention and is not used in restriction protection scope of the present invention.After the content of having read the present invention's record, those skilled in the art can make various changes or modifications the present invention, and these equivalences change and modify and fall into claim of the present invention institute restricted portion equally.
Claims (3)
1. the method that ZL205A alloying metal mold casting mould applies is characterized in that this method comprises the steps:
The selection of coating: coating is DAG395 thermal insulation coatings and PRODAG releasing agent coating, and DAG395 thermal insulation coatings main component is vermiculite and water, and content is 36%, and first the use pressed the 1:4 dilution, can adjust voluntarily on demand during actual the use; The main component of PRODAG releasing agent coating is fine-grain graphite and water, and content is 30%, and first the use pressed the 1:10 dilution, can adjust voluntarily on demand during actual the use;
The brushing of heat preservation protective layer: at first thoroughly remove the foreign matter of die surface, secondly, with mould and die preheating to 150 ℃～230 ℃, remove the oxide of die surface with wire brush; At last, under 150 ℃～230 ℃ mold face temperature, the DAG395 thermal insulation coatings of spraying dilution (extension rate is optionally adjusted voluntarily), thickness is 0.3mm～0.5mm, and the dead head place is the thickest, and the place is the thinnest away from cast gate, by being as thin as thick transition gradually, every layer of need spray thinly and are even;
The brushing of releasing agent: during the releasing agent brushing, mold face temperature should be more than 95 ℃, and spraying method is spray method, make to be coated with the balanced unanimity of facial mask thickness.
2. the method that applies of ZL205A alloying metal mold casting mould according to claim 1, it is characterized in that: when described DAG395 thermal insulation coatings and the dilution of PRODAG releasing agent coating, used dilution water is distilled water, ion exchange water or soft water.
3. the method that applies of ZL205A alloying metal mold casting mould according to claim 1 is characterized in that: sprayed behind the coating before the mold work, mould need be heated to more than 350 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104445388A CN103182486A (en) | 2011-12-28 | 2011-12-28 | Method for coating alloy metal mould casting die |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011104445388A CN103182486A (en) | 2011-12-28 | 2011-12-28 | Method for coating alloy metal mould casting die |
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| CN103182486A true CN103182486A (en) | 2013-07-03 |
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| CN2011104445388A Pending CN103182486A (en) | 2011-12-28 | 2011-12-28 | Method for coating alloy metal mould casting die |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722122A (en) * | 2013-12-31 | 2014-04-16 | 安顺学院 | Spraying material for metal mold and spraying process thereof |
| CN104057021A (en) * | 2014-05-12 | 2014-09-24 | 安顺学院 | Preparing and painting methods of coating of metal mould casting and rising system |
| CN104525418A (en) * | 2014-12-19 | 2015-04-22 | 天津立中车轮有限公司 | Mechanical arm special for automatic painting spraying of aluminum alloy wheel die and automatic painting spraying process |
| CN108788002A (en) * | 2018-08-29 | 2018-11-13 | 昆山帝邦铸造科技有限公司 | A kind of heat-resisting aluminium alloy casting mold-releasing agent and preparation method thereof and application method |
| CN114309455A (en) * | 2021-12-17 | 2022-04-12 | 山东豪迈机械科技股份有限公司 | Method for eliminating local thermal section of gypsum mold casting |
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| JP2004122159A (en) * | 2002-10-01 | 2004-04-22 | Nippon Chutetsukan Kk | Pouring member for centrifugal casting provided with heat insulating layer, and method of forming the heat insulating layer |
| CN1887480A (en) * | 2006-07-27 | 2007-01-03 | 上海交通大学 | Extrusion casting process for making automobile engine rack of magnesium alloy |
| CN101062521A (en) * | 2007-04-30 | 2007-10-31 | 山东中齐耐火材料有限公司 | Non-fabric heat-proof coating material for continuous casting nozzle |
| CN101235450A (en) * | 2008-03-01 | 2008-08-06 | 太原理工大学 | Method for preparing nickel aluminum vanadium alloy |
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2011
- 2011-12-28 CN CN2011104445388A patent/CN103182486A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2004122159A (en) * | 2002-10-01 | 2004-04-22 | Nippon Chutetsukan Kk | Pouring member for centrifugal casting provided with heat insulating layer, and method of forming the heat insulating layer |
| CN1887480A (en) * | 2006-07-27 | 2007-01-03 | 上海交通大学 | Extrusion casting process for making automobile engine rack of magnesium alloy |
| CN101062521A (en) * | 2007-04-30 | 2007-10-31 | 山东中齐耐火材料有限公司 | Non-fabric heat-proof coating material for continuous casting nozzle |
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Non-Patent Citations (1)
| Title |
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| 原材料商务网: "埃奇森DAG395保温涂料", 《HTTP://WWW.YUANCAILIAO.NET/TRADE/OFFERDETAIL-1825610.ASPX》, 29 September 2011 (2011-09-29) * |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103722122A (en) * | 2013-12-31 | 2014-04-16 | 安顺学院 | Spraying material for metal mold and spraying process thereof |
| CN103722122B (en) * | 2013-12-31 | 2016-02-17 | 安顺学院 | A kind of sprayed on material of metal type dies and spraying coating process thereof |
| CN104057021A (en) * | 2014-05-12 | 2014-09-24 | 安顺学院 | Preparing and painting methods of coating of metal mould casting and rising system |
| CN104057021B (en) * | 2014-05-12 | 2016-02-17 | 安顺学院 | The configuration of metal type dies pouring and riser systems coating and brushing method |
| CN104525418A (en) * | 2014-12-19 | 2015-04-22 | 天津立中车轮有限公司 | Mechanical arm special for automatic painting spraying of aluminum alloy wheel die and automatic painting spraying process |
| CN108788002A (en) * | 2018-08-29 | 2018-11-13 | 昆山帝邦铸造科技有限公司 | A kind of heat-resisting aluminium alloy casting mold-releasing agent and preparation method thereof and application method |
| CN114309455A (en) * | 2021-12-17 | 2022-04-12 | 山东豪迈机械科技股份有限公司 | Method for eliminating local thermal section of gypsum mold casting |
| CN114309455B (en) * | 2021-12-17 | 2023-04-18 | 山东豪迈机械科技股份有限公司 | Method for eliminating local thermal section of gypsum mold casting |
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Application publication date: 20130703 |