Molding (process)

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.

Stone mould of the Bronze Age used to produce spear tips

Molding or moulding (see spelling differences) 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 counterpart to 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.

Types of molding include:

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

• Injection molding die with side pulls
• 

  "A" side of die for 25% glass-filled acetal with 2 side pulls

• 

  Close up of removable insert in "A" side

• 

  "B" side of die with side pull actuators

• 

  Insert removed from die

This industry-related article is a stub. You can help Wikipedia by expanding it.v · Categories: Plastics industry Industry stubs Wikimedia Foundation. 2010. Игры ⚽ Поможем написать реферат Dryopteridaceae B'nai B'rith Youth Organization Look at other dictionaries: Molding process — Процесс матрицирования …   Краткий толковый словарь по полиграфии Unicast Ceramic Molding Process — The Unicast Ceramic Molding Process is a newer casting process that is more efficient at creating precision molds than previous methods. It can produce highly detailed parts at a cost lower than traditional high precision methods. Existing… …   Wikipedia Molding — or moulding may refer to: Molding (decorative), feature formed from marble, plaster, wood, etc. and used in interior design Molding (process), process used in manufacturing to shape materials Car body molding The temporary reshaping of the fetal… …   Wikipedia Molding — Mold ing, Moulding Mould ing, n. 1. The act or process of shaping in or on a mold, or of making molds; the art or occupation of a molder. [1913 Webster] 2. Anything cast in a mold, or which appears to be so, as grooved or ornamental bars of wood… …   The Collaborative International Dictionary of English Molding sand — Molding sand, foundry sand, or green sand is sand that when moistened or oiled tends to pack well and hold its shape. It is used in the process of sand casting.Green sandGreen sand is an aggregate of sand, bentonite clay, pulverized coal and… …   Wikipedia molding — (Amer.) n. process of forming something in a mold; that which has been molded; patterned edging, strip of material that is used as trim (also moulding) mold (Amer.) məʊld n. pattern or form for giving a particular shape; something that has been …   English contemporary dictionary molding material — Molding materials are products which can be molded permanently by a shaping process employing mechanical forces within a given temperature range into molded parts or semi finished articles; in some cases molding materials are used in a preformed… …   Dictionary of automotive terms molding — [mōl′diŋ] n. 1. the act or process of one that molds 2. something molded 3. a) any of various ornamental contours given to cornices, jambs, etc. b) a cornice or other projecting or sunk ornamentation, of wood, stone, brick, etc. c) a shaped strip …   English World dictionary Albert lead molding process — Способ изготовления свинцовых матриц для гальваностереотипов (изобретённый Альбертом) …   Краткий толковый словарь по полиграфии molding — /mohl ding/, n. 1. the act or process of molding. 2. something molded. 3. a strip of contoured wood or other material placed just below the juncture of a wall and a ceiling. 4. Archit., Furniture. a. any of various long, narrow, ornamental… …   Universalium 18+ © Academic, 2000-2025 Contact us: Technical Support, Advertising Dictionaries export, created on PHP, Joomla, Drupal, WordPress, MODx. Mark and share Search through all dictionaries Translate… Search Internet Share the article and excerpts Direct link … Do a right-click on the link above and select “Copy Link”