moulding

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moulding

The changes that the foetal skull—which has a rigid face and base and a mobile cranial vault—undergoes to enable it to exit through the birth canal.

moulding

A process for making a lens in which a hot piece of glass (called a parison or gob) or liquid polymer (for contact lenses) is pressed to a predetermined shape. Frames can also be manufactured by pouring a soft material (plastic or molten metal) into a mould which takes on the desired shape after cooling (or drying). The technique is useful for large volume production. Note: also spelt molding. See spin-cast contact lens; surfacing.
References in periodicals archive ?
Not only has CPI itself won new automotive molding business, but in late July, Tier One auto-parts supplier Decoma International in Concord, Ont.
As molding evolved over the last decade to include more specialized and sophisticated parts, it also became subject to increasingly stringent manufacturing requirements for cost, quality, productivity, and speed.
A collection of several different techniques, multi-component molding offers the ability to combine different materials or colors in a single one-shot or multi-shot process.
You'll also have the opportunity to view in person recently introduced machines (previously reported in this magazine) for multi-component molding, liquid silicone rubber, and low-pressure molding.
It helps the tool designer verify that the chosen processing window, polymer, gate positions, and part geometry will give desired molding dimensions.
In this installment, we cover introductions in additives, CIM systems, welding equipment, testing instruments, composites molding, and materials handling--plus some late-arriving announcements of introductions in injection molding, extrusion, blow molding, thermoforming, and recycling.
Lost-core injection moldings allows intricate parts to be molded in one piece by first molding a metal or polymer core, overmolding it with high-heat resin such as glass-filled nylon, then melting or dissolving the core away without damaging the part.
New modular, high-speed, and tiebar-less machines, enhanced controls and supervisory computer systems, "expert system" troubleshooting aids, new robots and other parts-handling devices, integrated CD manufacturing systems, and novel processes for liquid-crystal polymers, foams and hollow, complex parts--all provided attendees with a look at how injection molding will evolve into the 1990s and offered proof that injection molding will continue to be among the most innovative of plastics processing techniques.
So, a curing rate at injection moldings was decided as TV because the current curemeter is designed to measure curing rates of curing characteristics with no flow.
Four milestones marking the development of gas-assist molding started in 1971 with a patent application filed by German inventor Ernest Mohrbach.
The major applications include many different automotive items such as exterior body parts, body side molding, air ducts and industrial goods.