CN103264139A - Water glass and silica solution composite shell manufacturing method - Google Patents
Water glass and silica solution composite shell manufacturing method Download PDFInfo
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- CN103264139A CN103264139A CN2013101929434A CN201310192943A CN103264139A CN 103264139 A CN103264139 A CN 103264139A CN 2013101929434 A CN2013101929434 A CN 2013101929434A CN 201310192943 A CN201310192943 A CN 201310192943A CN 103264139 A CN103264139 A CN 103264139A
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Abstract
The invention discloses a water glass and silica solution composite shell manufacturing method, wherein a shell manufactured by the method comprises a surface layer and a reinforced layer, the surface layer is made of a silica solution zircon power coating, and the reinforced layer is made of a water glass mullite coating. The water glass and silica solution composite shell manufacturing method provided by the invention has the advantages that the production cost is reduced, the surface quality of a casting is improved, and the surface quality of the casting can achieve the level of a silica solution casting.
Description
Technical field
The present invention relates to field of metal casting technology, relate in particular to a kind of waterglass, Ludox compound shell-producing method.
Background technology
At present, sand casting is generally adopted in domestic rolling mill guide and guard, exists guide and guard blank surface quality poor, and the guide and guard processing capacity is big, and stock utilization is low and guide and guard production efficiency low and the high deficiency of guide and guard manufacturing cost, has seriously restricted the development of guide and guard industries.Therefore, exploitation guide and guard novel manufacturing process is conducive to materials saving.At present, improving the effective measures of surface quality of continuous castings is to adopt the production of cured mould casting method.The binding agent that cured mould hot investment casting is used mainly contains waterglass and Ludox two big classes, the former is with low cost, but surface quality of continuous castings is lower, the surface quality of continuous castings that the latter produces is good, but it is expensive, therefore, exploitation waterglass-Ludox combination process, can utilize the advantage of waterglass and Ludox, can overcome the shortcoming of waterglass and Ludox again, it is good to produce surface quality, and the cheap guide and guard product of manufacturing cost, thereby can enlarge the sales volume of guide and guard, and improve the guide and guard market competitiveness.
Summary of the invention
The purpose of this invention is to provide a kind of waterglass that can reduce production costs, improve surface quality of continuous castings, Ludox compound shell-producing method.
The present invention is achieved in that waterglass, Ludox compound shell-producing method, comprises surface layer, back-up coat, it is characterized in that: surface layer adopts the Ludox zircon flour coating; Back-up coat adopts waterglass mullite coating.
The main supplementary material of Ludox zircon flour coating of the present invention is: binding agent, shell refractory powder processed, shell processed are removed sand, and its binding agent is the SS-30 Ludox, and SiO2 content is 30%, and density is 1.2kg/dm
3Shell refractory powder processed is 320 order zirconium English powder, and shell stucco processed is 12 0 order zircon sands.
The main supplementary material of waterglass mullite coating of the present invention is: binding agent, shell refractory powder processed, shell processed are removed sand, and its binding agent is that modulus of water glass is 3 ~ 3.4, and density is 1.35 ~ 1.38kg/dm
3, shell refractory powder processed is 40～70 order mullite powder, shell stucco processed is 16～30 order mullite sand.
The present invention has reduced production cost, can improve surface quality of continuous castings, and surface quality of continuous castings reaches Ludox foundry goods level.
The specific embodiment
Waterglass, Ludox compound shell-producing method comprise surface layer, back-up coat, it is characterized in that: surface layer adopts the Ludox zircon flour coating; Back-up coat adopts waterglass mullite coating.The main supplementary material of described Ludox zircon flour coating is: binding agent, shell refractory powder processed, shell processed are removed sand, and its binding agent is the SS-30 Ludox, and SiO2 content is 30%, and density is 1.2kg/dm
3Shell refractory powder processed is 320 order zirconium English powder, and shell stucco processed is 12 0 order zircon sands.The main supplementary material of described waterglass mullite coating is: binding agent, shell refractory powder processed, shell processed are removed sand, and its binding agent is that modulus of water glass is 3 ~ 3.4, and density is 1.35 ~ 1.38kg/dm
3, shell refractory powder processed is 40～70 order mullite powder, shell stucco processed is 16～30 order mullite sand.
During concrete enforcement, according to the part wall thickness, complexity or not having dark groove determines formulation for coating material.Get a certain amount of refractory powder, wetting agent, defoamer by the investment precoat prescription, earlier wetting agent, defoamer are added in the paint can, adding Ludox then stirs, constantly adding refractory powder in the whipping process, continue to stir 8 ~ 12h after adding, stable back viscosimetric, the too high Ludox that adds of viscosity dilutes, the too small refractory powder that then adds is till viscosity is fit to.Waterglass mullite coating and Ludox zircon flour coating method of operating are basic identical.The surface is two-layer all adopts identical Ludox zircon flour coating, and 12 0 order zircon sands are adopted in the surface layer stucco, and the second layer adopts 30～60 order mullite sand.Two-layer drying process is identical, be that condition following drying time of 25 ℃ and relative humidity≤55 is greater than 10h in environment temperature, to guarantee the abundant drying of Ludox zircon flour coating, just can not produce back molten or swelling when abundant dried Ludox zircon flour coating runs into moisture content, guarantee the quality of surface shell.Back-up coat adopts waterglass mullite coating, and 16～30 mullite sand are adopted in stucco, under the room temperature behind dry 1 ~ 2h, and crystal aluminum chloride sclerosis 10min, dry 20 ~ 30min.Surface quality of continuous castings of the present invention reaches Ludox foundry goods level.The guide and guard production cost reduces more than 30% than former use Ludox foundry goods.
Claims (3)
1. waterglass, Ludox compound shell-producing method comprise surface layer, back-up coat, it is characterized in that: surface layer adopts the Ludox zircon flour coating; Back-up coat adopts waterglass mullite coating.
2. waterglass according to claim 1, Ludox compound shell-producing method, it is characterized in that: the main supplementary material of described Ludox zircon flour coating is: binding agent, shell refractory powder processed, shell processed are removed sand, its binding agent is the SS-30 Ludox, and SiO2 content is 30%, and density is 1.2kg/dm
3Shell refractory powder processed is 320 order zirconium English powder, and shell stucco processed is 12 0 order zircon sands.
3. waterglass according to claim 1, Ludox compound shell-producing method, it is characterized in that: the main supplementary material of described waterglass mullite coating is: binding agent, shell refractory powder processed, shell processed are removed sand, its binding agent is that modulus of water glass is 3 ~ 3.4, and density is 1.35 ~ 1.38kg/dm
3, shell refractory powder processed is 40～70 order mullite powder, shell stucco processed is 16～30 order mullite sand.
Priority Applications (1)
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| CN2013101929434A CN103264139A (en) | 2013-05-23 | 2013-05-23 | Water glass and silica solution composite shell manufacturing method |
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| CN2013101929434A CN103264139A (en) | 2013-05-23 | 2013-05-23 | Water glass and silica solution composite shell manufacturing method |
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| CN103264139A true CN103264139A (en) | 2013-08-28 |
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| CN2013101929434A Pending CN103264139A (en) | 2013-05-23 | 2013-05-23 | Water glass and silica solution composite shell manufacturing method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639356A (en) * | 2013-12-17 | 2014-03-19 | 连云港冠钰精密工业有限公司 | Shell mold slurry used in manufacturing automobile spare parts |
| CN105945215A (en) * | 2016-07-06 | 2016-09-21 | 上海华培动力科技有限公司 | Double-layer refractory coating used for centrifugal casting process metal die and spraying process thereof |
| CN106345970A (en) * | 2016-08-29 | 2017-01-25 | 山西宇达青铜文化艺术股份有限公司 | Art casting silica sol and water glass compound shell making technique |
| CN108746484A (en) * | 2018-08-21 | 2018-11-06 | 安徽信息工程学院 | Medium temperature wax silica-sol wash and preparation method thereof |
| CN108746485A (en) * | 2018-08-21 | 2018-11-06 | 安徽信息工程学院 | Medium temperature wax silica-sol wash and preparation method thereof |
| CN108838324A (en) * | 2018-08-21 | 2018-11-20 | 安徽信息工程学院 | Medium temperature wax silica-sol wash and preparation method thereof |
| CN111266519A (en) * | 2019-12-25 | 2020-06-12 | 江苏金研新材料科技有限公司 | Preparation technology and application of large-scale high-strength composite shell |
| CN112808933A (en) * | 2020-12-31 | 2021-05-18 | 洛阳鹏起实业有限公司 | Method for forming titanium alloy casting with mark |
| CN113000788A (en) * | 2019-12-20 | 2021-06-22 | 丹东大王精铸有限公司 | Shell manufacturing method of low-cost composite shell |
| CN113560491A (en) * | 2021-07-27 | 2021-10-29 | 青田阿迪玛阀门铸造有限公司 | Valve body casting process |
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| CN86102002A (en) * | 1986-03-20 | 1986-09-10 | 沈阳工业学院 | Ludox, water glass composite shell |
| CN87100343A (en) * | 1987-01-17 | 1988-04-06 | 哈尔滨工业大学 | The manufacture method of fusible pattern plaster mold and coating |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103639356A (en) * | 2013-12-17 | 2014-03-19 | 连云港冠钰精密工业有限公司 | Shell mold slurry used in manufacturing automobile spare parts |
| CN105945215A (en) * | 2016-07-06 | 2016-09-21 | 上海华培动力科技有限公司 | Double-layer refractory coating used for centrifugal casting process metal die and spraying process thereof |
| CN106345970A (en) * | 2016-08-29 | 2017-01-25 | 山西宇达青铜文化艺术股份有限公司 | Art casting silica sol and water glass compound shell making technique |
| CN108746484A (en) * | 2018-08-21 | 2018-11-06 | 安徽信息工程学院 | Medium temperature wax silica-sol wash and preparation method thereof |
| CN108746485A (en) * | 2018-08-21 | 2018-11-06 | 安徽信息工程学院 | Medium temperature wax silica-sol wash and preparation method thereof |
| CN108838324A (en) * | 2018-08-21 | 2018-11-20 | 安徽信息工程学院 | Medium temperature wax silica-sol wash and preparation method thereof |
| CN113000788A (en) * | 2019-12-20 | 2021-06-22 | 丹东大王精铸有限公司 | Shell manufacturing method of low-cost composite shell |
| CN111266519A (en) * | 2019-12-25 | 2020-06-12 | 江苏金研新材料科技有限公司 | Preparation technology and application of large-scale high-strength composite shell |
| CN112808933A (en) * | 2020-12-31 | 2021-05-18 | 洛阳鹏起实业有限公司 | Method for forming titanium alloy casting with mark |
| CN113560491A (en) * | 2021-07-27 | 2021-10-29 | 青田阿迪玛阀门铸造有限公司 | Valve body casting process |
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Application publication date: 20130828 |