The process of injection blow moulding is used for the production of hollow glass and plastic objects in large quantities. The materials definition of a glass is a uniform amorphous solid material, usually produced when a suitably viscous molten material cools very rapidly, thereby not giving enough time for a regular crystal lattice to form. ... A thermoplastic is a plastic that softens when heated and hardens again when cooled. ...

The main applications are bottles, jars and other containers. The Injection blow moulding process produces bottles of superior visual and dimensional quality compared to extrusion blow moulding. The process is ideal for both narrow and wide-mouthed containers and produces them fully finished with no flash. A sign of injection blow moulding is the seam where the two halves of the mould meet. Reusable glass milk bottles A bottle is a small container with a neck that is narrower than the body and a mouth. ...

==Process==--88.109.111.65 12:37, 18 September 2005 (UTC)--88.109.111.65 12:37, 18 September 2005 (UTC)--88.109.111.65 12:37, 18 September 2005 (UTC)--88.109.111.65 12:37, 18 September 2005 (UTC):)

The processItalic [[text is divided in to three steps: injection, blowing and ejection.]]

Injection

The injection blow moulding machine is based on an extruder barrel and screw assembly which melts the polymer. The molten polymer is fed into a manifold where it is injected through nozzles into a hollow, heated preform mould. The preform mould forms the external shape and is clamped around a mandrel (the core rod) which forms the internal shape of the preform. The preform consists of a fully formed bottle/jar neck with a thick tube of polymer attached, which will form the body. A polymer is a generic term used to describe a substantially long molecule. ... This is the current mathematics collaboration of the week! Please help improve it to featured article standard at manifold/rewrite. ... Molding is the process of manufacturing by shaping pliable raw material using a rigid frame or model called a mold. ... Mandrel (pronounced mandrul, and also transliterated as manderil) is a term that can refer to: an object used to shape machined work; a tool component that grips or clamps items to be machined; or a tool component that can be used to grip other moving tool components. ...

Blowing

The preform mould opens and the core rod is rotated and clamped into the hollow, chilled blow mould. The core rod opens and allows compressed air into the preform, which inflates it to the finished article shape.

Ejection

After a cooling period the blow mould opens and the core rod is rotated to the ejection position. The finished article is stripped off the core rod and leak-tested prior to packing. The preform and blow mould can have many cavities, typically three to sixteen depending on the article size and the required output. There are three sets of core rods, which allow concurrent preform injection, blow moulding and ejection.