发明名称 |
PRECISION CASTING MOLD AND METHOD OF PRODUCING THE SAME |
摘要 |
Provided is a precision casting mold to be used to produce a cast product. The precision casting mold includes a core having a shape corresponding to an internal hollow portion of the cast product and an outer mold corresponding to a shape of an outer peripheral surface of the cast product, and the outer mold is made up of: a prime layer (first dried film) (101A) which is formed on an inner peripheral surface and is formed from a slurry film obtained by drying slurry for the precision casting mold including mono-dispersed ultrafine zirconia particles having a particle size of 1.0 μm or smaller (preferably, 0.3 to 0.5 μm, disclosed in Examples); and a multi-layered backup layer (105A) which is formed on the outside of the prime layer (first dried film) (101A) by repeatedly forming a backup layer (second dried film) (104-1) obtained by forming and drying a slurry layer (102) formed from the slurry for the precision casting mold and a stucco layer (103) in which a stucco material is adhered to the slurry layer. |
申请公布号 |
US2015266085(A1) |
申请公布日期 |
2015.09.24 |
申请号 |
US201314433053 |
申请日期 |
2013.10.07 |
申请人 |
MITSUBISHI HITACHI POWER SYSTEMS, LTD. |
发明人 |
Oguma Hidetaka;Mori Kazutaka;Okada Ikuo;Shimohata Sachio |
分类号 |
B22C9/04;B22C7/02;B22C1/02;B22C9/10 |
主分类号 |
B22C9/04 |
代理机构 |
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代理人 |
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主权项 |
1. A precision casting mold which is used to produce a cast product, comprising:
a core having a shape corresponding to an internal hollow portion of the cast product; and an outer mold corresponding to a shape of an outer peripheral surface of the cast product, wherein the outer mold is made up of: a prime layer which is formed on an inner peripheral surface and is formed from a slurry film obtained by drying slurry for the precision casting mold including mono-dispersed ultrafine zirconia particles having a particle size of 0.3 μm to 0.6 μm; and a multi-layered backup layer which is formed on the outside of the prime layer by repeatedly forming a backup layer obtained by forming and drying a slurry layer formed from the slurry for the precision casting mold and a stucco layer in which a stucco material is adhered to the slurry layer. |
地址 |
Kanagawa JP |