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Unit 18 Open mould
Dec 14, 2017

Molding or moulding (see spelling differences) is the process of manufacturing by shaping liquid or pliable raw material using a rigid frame called a mold or matrix. This itself may have been made using a pattern or model of the final object.

As for a manufacturer, we also can open mould to do the bottle.


A mold or mould is a hollowed-out block that is filled with a liquid or pliable material such as plastic, glass, metal, or ceramic raw material. The liquid hardens or sets inside the mold, adopting its shape. A mold is the counterpart to a cast. The very common bi-valve molding process uses two molds, one for each half of the object. Articulated moulds have multiple pieces that come together to form the complete mold, and them disassemble to release the finished casting; they are expensive, but necessary when the casting shape has complex overhangs. [better source needed] Piece-molding uses a number of different molds, each creating a section of a complicated object. This is generally only used for larger and more valuable objects.


A manufacturer who makes molds is called a mold maker. A release agent is typically used to make removal of the hardened/set substance from the mold easier. Typical uses for molded plastics include molded furniture, molded household goods, molded cases, and structural materials.

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