2016年8月19日星期五

Plastic Moulds and Plastic Forming Technology

The mould used to make plastic products is called plastic mould for short. In order to get plastic products with certain sizes, shapes and properties, thermosetting or thermoplastic plastic is heated to a certain temperature, put into a mold cavity, and taken out after it cools. This is called plastic forming technology.
Plastic forming technology are classified mainly into compression forming, transfer forming, injection forming in accordance with method of moulding. Moreover there are hollow how molding forming, foaming forming, pouring forming, etc.
In accordance with plastic forming technology, plastic mould are classified into compression mould, transfer mould, injection mould and hollow blow molding mould, foaming mould, pouring mould, etc.
There are many kinds of plastic moulds, but they only can be decided into two main types, forming parts and structure parts. Now, it explain basic structure of mould with a  example of typical structure.
More information please click www.olimy.com



Fig 1 Basic structure of Fixed injection mould

a) Mould closing state    b) Mould opening state

1-Sprue puller pin  2-Ejector pin  3-Headed guide pillar  4-Core  5-Cavity plate

6-Cooling channel  7-Locating ring  8-Sprue bush  9-Clamping plate of the fixed half

10-Fixed half of a mould  11-Moving half of a mould  12-Support plate

13-Spacer (mold leg)  14-Ejector retaining plate  15-Ejector plate

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