.~.~.~ Composite, plural part or multilayered mold {4}
33
.~.~.~.~ Lining mold surface
DEFINITION
Classification: 164/33
(under subclass 23) Process directed to forming a layer on the mold shaping surface which functions to shape or retain the molten material during the casting operation.
(1) Note. Before placing a patent herein a determination must be made that the lining functions to shape or retain the molten cast material. Such guidelines as the thickness of the applied lining, whether or not there are means, i.e., stops or dams, for confining the lining material in the mold, whether or not there are significant shaping steps disclosed, e.g., compacting, permanency of the lining are to be considered in making the determination.
(2) Note. The combination of shaping one layer of a
multi-layered mold and separately forming after removal from the initial shaping member a lining on the preformed layer would be placed herein.
(3) Note. Generally the patents found herein are those disclosing lining centrifugal mold flasks with mold materials.
SEE OR SEARCH THIS CLASS, SUBCLASS:
14, for a process of shaping a forming surface combined with the step of coating the casting surface with a treating material. 55.1+, for a process of lining or coating a casting surface with a material which is to be alloyed with the molten casting material.
66.1+, for a process of coating a casting surface with a material which produces an inert or reducing gaseous atmosphere upon teeming the metal.
72+, for a process of coating-treating a casting surface combined with the step of casting.
91+, for a process of lining a casting surface with a material which forms a composite layer or coating with the cast material.
473, for continuous casting processes incorporating an addition or agent in a melt system.
475, for a continuous casting process with an inert or reducing gas atmosphere.
