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One half of a bronze mold for casting a socketed spear head dated to the period 1400-1000 BC. There are no known parallels for this mold.
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Stone mold of the Bronze Age used to produce spear tips.
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Ancient Greek molds, used to mass-produce clay figurines, 5th/4th century BC. Beside them, the modern casts taken from them. On display in the "Ancient Agora Museum in Athens, housed in the "Stoa of Attalus.
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Ancient wooden molds used for jaggery & sweets, archaeological museum in Jaffna, Sri Lanka.

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.[1] This itself may have been made using a pattern or model of the final object.

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.[2] 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. 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.

The manufacturer who makes molds is called the "moldmaker. 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.

Contents

Types[edit]

There are several types of molding methods.[3] These include:

Gallery[edit]

See also[edit]

References[edit]

  1. ^ "Molding – Definition of molding by Merriam-Webster". merriam-webster.com. 
  2. ^ "Mold – Definition of mold by Merriam-Webster". merriam-webster.com. 
  3. ^ Dean, Yvonne (July 2016). Materials Technology. Routledge. "ISBN "9781315504285. 


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