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Bronze spearhead mold

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.


español: Vaciado



Archivo:Bronze Age spear tip mould IMG 5123.jpg

Stone mould of the Bronze Age used to produce spear tips.

English: Molding or moulding is the process of manufacturing by shaping pliable raw material using a rigid frame or model called a pattern.

A mold or mould is a hollowed-out block that is filled with a liquid like plastic, glass, metal, or ceramic raw materials. The liquid hardens or sets inside the mold, adopting its shape. A mold is the opposite of a cast. The manufacturer who makes the molds is called the moldmaker. A release agent is typically used to make removal of the hardened/set substance from the mold easier.

The terminology can depend on the application. Sand casting involves both a "pattern" (which is the positive-image model of the desired part) and a "mold" (which is the negative-image hole made by packing sand around the pattern).

Types of molding include:

  • Compaction plus sintering
  • Injection molding
    • Reaction injection molding
  • Compression molding
  • Transfer molding
  • Extrusion molding
  • Blow molding
  • Rotational molding
  • Thermoforming
    • Vacuum forming, a simplified version of thermoforming
  • Laminating
  • Expandable bead molding
  • Foam molding
  • Rotomolding
  • Vacuum plug assist molding
  • Pressure plug assist molding
  • Matched mold







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Esta página tiene contenido de Wikipedia. El Artículo original es Molding (process). La lista de autores la puedes ver en Historial. El texto de Wikipedia esta disponible bajo Licencia Creative Commons Atribución/Compartir-Igual 3.0.
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