;CONSTITUTION: The casting molds are formed of a mixture prepd. by compounding 1.2 to 2.0 pts.wt. water-soluble phenolic resin and 0.2 to 0.7 pt. org. ester as a hardener for the phenolic resin with 100 pts.wt. mullite ceramics consisting of a grain size in a range of 0.4 to 1.0mm...
results in slower setting, a lower water -gypsum ratio, a stronger mold, and a lower building-up rate for the casting.For a high-strength mold 0.1% MgSO 4 should be added to the gypsum prior to boiling.The molds must be dried at a temperature not above 60掳C. The porosity of the ...
a mold used in the foundry industry for the production of castings. Molten metal or stone is poured into such molds. Materials used for making molds are quartz sand, bento-nite, clay, and metals. The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All...
Ways of optimizing the technology for ceramic articles based on the method of slip casting under the effect of capillary forces in porous molds under pressure are considered. The technology for preparing fired molds with channels for slip casting under pressure is presented....
Composite binders for precision casting shell molds The convert mold process has been investigated, focusing on preparation of shell molds using different composite binder systems. The glassification efficie... EH Kim,WR Lee,YG Jung - 《Ceramics International》 被引量: 1发表: 2012年 ...
Composite binders for precision casting shell molds A new composite binder system has been developed to improve the strength and to decrease the processing time of inorganic binder mold for precision casting... Eun‐Hee Kim,Woo-ram Lee,Yeon‐Gil Jung - 《Ceramics International》 被引量: 0发表:...
As a liquid, the dispersion is able to fill the fine features of porous and nonporous molds. Since ceramics are not made into complex shapes by melt casting, shape casting from a dispersion of ceramic particles is sometimes the only route to 3D ceramic shapes on an industrial scale. Since ...
In the forging process, the originally blank required to be shaped, for example, is plastically deformed between two tools (or molds) to obtain the desired final shape. Thus simple part geometries can be converted into complex part geometries, allowing the tool to “storage” the desired geometr...
In this work, porous alumina produced by hot isostatic process (HIP) is evaluated to apply as slip casting molds. HIPed porous alumina molds have higher water suction rate than conventionally sintered ones with a same open porosity. The high water suction rate of HIPed molds is due to the ...
There are two basic types of molds us... S Uram - World Congress on High Tech Ceramics 被引量: 0发表: 1987年 Adaptive Press Casting for Complex Shape Production Using Molten Metal's Pressure Control inside Greensand Mold This paper presents a modeling and control of molten metal's pressure...