CN105344924A - Shell primary layer coating for casting of precise casting - Google Patents
Shell primary layer coating for casting of precise casting Download PDFInfo
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- CN105344924A CN105344924A CN201510698633.9A CN201510698633A CN105344924A CN 105344924 A CN105344924 A CN 105344924A CN 201510698633 A CN201510698633 A CN 201510698633A CN 105344924 A CN105344924 A CN 105344924A
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Abstract
The invention discloses a shell primary layer coating for casting of a precise casting. The shell primary layer coating comprises, by mass, 60 parts to 150 parts of an inorganic binder, 30 parts to 55 parts of an organic binder, 300 parts to 450 parts of a fireproof raw material, 1 part to 3 parts of a bactericide, 2 parts to 6 parts of an antifoaming agent, 1 part to 6 parts of a surface active agent, 2 parts to 5 parts of a wetting dispersant and 1 part to 5 parts of an adding agent. The inorganic binder is a mixture of one or more of a silica solution, zirconia sol and yttrium oxide sol. Through the manner, according to the shell primary layer coating for casting of the precise casting, the casting use requirement is met, the preparation cost is low, and the coating is free of poison, safe and reliable.
Description
Technical field
The present invention relates to casting field, particularly relate to a kind of precision casting casting shell surface layer coating.
Background technology
Because magnesium alloy reactivity is high, with most oxide ceramic material in casting process, as aluminium oxide, silica, zirconium Ying Fen etc., all can there is reaction in various degree and cause the generation of Mg alloy castings reaction layer, when the conversion zone of Mg alloy castings reaches certain thickness, all can be able to impact the surface roughness of foundry goods and dimensional accuracy, for large-scale, the Mg alloy castings of thin-walled, the control of surface reaction layer thickness is even more important, therefore select a kind of low with magnesium alloy reactivity, and be beneficial to the investment precoat system that magnesium alloy fills type, be realize large-scale, the key problem in technology of thin-wall Mg alloy model casting success or not.
Summary of the invention
The technical problem that the present invention mainly solves is to provide a kind of precision casting casting shell surface layer coating, and can cast user demand, preparation cost is low, and nonhazardous is safe and reliable.
For solving the problems of the technologies described above, the technical scheme that the present invention adopts is: provide a kind of precision casting casting shell surface layer coating, comprise following material to form by mass fraction: inorganic binder 60-150 part, organic binder bond 30-55 part, refractory raw material 300-450 part, bactericide 1-3 part, defoamer 2-6 part, surfactant 1-6 part, wetting dispersing agent 2-5 part and additive 1-5 part, described inorganic binder is one or more the mixture in Ludox, zirconia sol and yittrium oxide colloidal sol.
In a preferred embodiment of the present invention, described surfactant is JFC surfactant or dioctylis sulfosuccinas natricus type just a kind of in surface-active agent or the mixture of two kinds.
In a preferred embodiment of the present invention, described additive is aluminium oxide, aluminium nitride, graphite, yittrium oxide, zirconic mixture.
In a preferred embodiment of the present invention, described refractory raw material is the mixture of hexagonal boron nitride micro mist, quartz and corundum, and described organic binder bond is polyvinyl acetate emulsion.
In a preferred embodiment of the present invention, described defoamer is n-octyl alcohol or reactive polysiloxanes water, and described wetting dispersing agent is AEO, and described bactericide is Kathon CG bactericide.
The invention has the beneficial effects as follows: precision casting casting shell surface layer coating of the present invention, can cast user demand, preparation cost is low, and nonhazardous is safe and reliable.
Detailed description of the invention
Be clearly and completely described to the technical scheme in the embodiment of the present invention below, obviously, described embodiment is only a part of embodiment of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to the scope of protection of the invention.
Embodiment 1: a kind of precision casting casting shell surface layer coating, comprise following material to form by mass fraction: inorganic binder 60 parts, inorganic binder is Ludox, organic binder bond 30 parts, organic binder bond is polyvinyl acetate emulsion, refractory raw material 300 parts, refractory raw material is hexagonal boron nitride micro mist, the mixture of quartz and corundum, bactericide 1-3 part, bactericide is Kathon CG bactericide, defoamer 2 parts, defoamer is n-octyl alcohol or reactive polysiloxanes water, 1 part, surfactant, surfactant is JFC surfactant, wetting dispersing agent 2 parts, wetting dispersing agent is AEO, additive 1 part, additive is aluminium oxide, aluminium nitride, graphite, yittrium oxide and zirconic mixture.
Embodiment 2: a kind of precision casting casting shell surface layer coating, comprise following material to form by mass fraction: inorganic binder 100 parts, inorganic binder is the mixture of Ludox and yittrium oxide colloidal sol, organic binder bond 40 parts, organic binder bond is polyvinyl acetate emulsion, refractory raw material 388 parts, refractory raw material is hexagonal boron nitride micro mist, the mixture of quartz and corundum, 2 parts, bactericide, bactericide is Kathon CG bactericide, defoamer 3 parts, defoamer is n-octyl alcohol or reactive polysiloxanes water, 4 parts, surfactant, surfactant is dioctylis sulfosuccinas natricus type just surface-active agent, wetting dispersing agent 3 parts, wetting dispersing agent is AEO, additive 2 parts, additive is aluminium oxide, aluminium nitride, graphite, yittrium oxide and zirconic mixture.
Embodiment 3: a kind of precision casting casting shell surface layer coating, comprise following material to form by mass fraction: inorganic binder 150 parts, inorganic binder is Ludox, the mixture of zirconia sol and yittrium oxide colloidal sol, organic binder bond 55 parts, organic binder bond is polyvinyl acetate emulsion, refractory raw material 450 parts, refractory raw material is hexagonal boron nitride micro mist, the mixture of quartz and corundum, 3 parts, bactericide, bactericide is Kathon CG bactericide, defoamer 6 parts, defoamer is n-octyl alcohol or reactive polysiloxanes water, 6 parts, surfactant, surfactant is the mixture of JFC surfactant and dioctylis sulfosuccinas natricus type just surface-active agent, wetting dispersing agent 5 parts, wetting dispersing agent is AEO, additive 5 parts, additive is aluminium oxide, aluminium nitride, graphite, yittrium oxide and zirconic mixture.
Be different from prior art, precision casting casting shell surface layer coating of the present invention, can cast user demand, preparation cost is low, and nonhazardous is safe and reliable.
The foregoing is only embodiments of the invention; not thereby the scope of the claims of the present invention is limited; every utilize description of the present invention to do equivalent structure or equivalent flow process conversion; or be directly or indirectly used in other relevant technical field, be all in like manner included in scope of patent protection of the present invention.
Claims (5)
1. shell surface layer coating is used in a precision casting casting, it is characterized in that, comprise following material to form by mass fraction: inorganic binder 60-150 part, organic binder bond 30-55 part, refractory raw material 300-450 part, bactericide 1-3 part, defoamer 2-6 part, surfactant 1-6 part, wetting dispersing agent 2-5 part and additive 1-5 part, described inorganic binder is one or more the mixture in Ludox, zirconia sol and yittrium oxide colloidal sol.
2. precision casting casting shell surface layer coating according to claim 1, is characterized in that, described surfactant is JFC surfactant or dioctylis sulfosuccinas natricus type just a kind of in surface-active agent or the mixture of two kinds.
3. precision casting casting shell surface layer coating according to claim 1, is characterized in that, described additive is aluminium oxide, aluminium nitride, graphite, yittrium oxide, zirconic mixture.
4. precision casting casting shell surface layer coating according to claim 1, it is characterized in that, described refractory raw material is the mixture of hexagonal boron nitride micro mist, quartz and corundum, and described organic binder bond is polyvinyl acetate emulsion.
5. precision casting casting shell surface layer coating according to claim 1, is characterized in that, described defoamer is n-octyl alcohol or reactive polysiloxanes water, and described wetting dispersing agent is AEO, and described bactericide is Kathon CG bactericide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510698633.9A CN105344924A (en) | 2015-10-26 | 2015-10-26 | Shell primary layer coating for casting of precise casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510698633.9A CN105344924A (en) | 2015-10-26 | 2015-10-26 | Shell primary layer coating for casting of precise casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105344924A true CN105344924A (en) | 2016-02-24 |
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| CN201510698633.9A Pending CN105344924A (en) | 2015-10-26 | 2015-10-26 | Shell primary layer coating for casting of precise casting |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107309388A (en) * | 2017-08-12 | 2017-11-03 | 合肥市田源精铸有限公司 | A kind of precision-investment casting composite coating |
| CN108436028A (en) * | 2018-01-29 | 2018-08-24 | 安徽霍山科皖特种铸造有限责任公司 | A kind of new type silica sol, water glass composite shell and preparation method thereof |
| CN111171643A (en) * | 2020-01-14 | 2020-05-19 | 山东鲁阳浩特高技术纤维有限公司 | Aluminum liquid corrosion resistant nano coating and preparation method and application thereof |
| CN112170776A (en) * | 2019-07-05 | 2021-01-05 | 章元材料科技(沈阳)有限公司 | Reinforced stable yttrium oxide slurry and preparation method thereof |
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| JPH0576989A (en) * | 1991-08-01 | 1993-03-30 | Mitsubishi Heavy Ind Ltd | Manufacture of mold for precision casting |
| CN1943908A (en) * | 2006-10-19 | 2007-04-11 | 上海大学 | Boron nitride composite paint for precise invested mold casting of titanium and titanium alloy |
| CN102151787A (en) * | 2011-05-30 | 2011-08-17 | 哈尔滨工业大学 | 600-DEG C high-temperature titanium alloy fired mold casting type shell surface painting and preparation method thereof |
| CN102294436A (en) * | 2011-09-19 | 2011-12-28 | 哈尔滨实钛新材料科技发展有限公司 | Method for precisely casting titanium alloy and titanium aluminum alloy with low cost |
| CN103934410A (en) * | 2014-04-16 | 2014-07-23 | 青岛润乾钛业科技有限公司 | Preparation method of oxide surface layer shell for titanium alloy precision casting |
| CN104399874A (en) * | 2014-12-01 | 2015-03-11 | 上海交通大学 | Hexagonal boron nitride type mold shell investment precoat for precision casting of magnesium alloy investment |
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2015
- 2015-10-26 CN CN201510698633.9A patent/CN105344924A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0576989A (en) * | 1991-08-01 | 1993-03-30 | Mitsubishi Heavy Ind Ltd | Manufacture of mold for precision casting |
| CN1943908A (en) * | 2006-10-19 | 2007-04-11 | 上海大学 | Boron nitride composite paint for precise invested mold casting of titanium and titanium alloy |
| CN102151787A (en) * | 2011-05-30 | 2011-08-17 | 哈尔滨工业大学 | 600-DEG C high-temperature titanium alloy fired mold casting type shell surface painting and preparation method thereof |
| CN102294436A (en) * | 2011-09-19 | 2011-12-28 | 哈尔滨实钛新材料科技发展有限公司 | Method for precisely casting titanium alloy and titanium aluminum alloy with low cost |
| CN103934410A (en) * | 2014-04-16 | 2014-07-23 | 青岛润乾钛业科技有限公司 | Preparation method of oxide surface layer shell for titanium alloy precision casting |
| CN104399874A (en) * | 2014-12-01 | 2015-03-11 | 上海交通大学 | Hexagonal boron nitride type mold shell investment precoat for precision casting of magnesium alloy investment |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107309388A (en) * | 2017-08-12 | 2017-11-03 | 合肥市田源精铸有限公司 | A kind of precision-investment casting composite coating |
| CN108436028A (en) * | 2018-01-29 | 2018-08-24 | 安徽霍山科皖特种铸造有限责任公司 | A kind of new type silica sol, water glass composite shell and preparation method thereof |
| CN112170776A (en) * | 2019-07-05 | 2021-01-05 | 章元材料科技(沈阳)有限公司 | Reinforced stable yttrium oxide slurry and preparation method thereof |
| CN112170776B (en) * | 2019-07-05 | 2021-12-28 | 章元材料科技(沈阳)有限公司 | Reinforced stable yttrium oxide slurry and preparation method thereof |
| CN111171643A (en) * | 2020-01-14 | 2020-05-19 | 山东鲁阳浩特高技术纤维有限公司 | Aluminum liquid corrosion resistant nano coating and preparation method and application thereof |
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Application publication date: 20160224 |