China Plastic Molding

how to select injection machine

DAKUMA MACHINERY CO.,LTD,ZHEJIANG is a Chinese injection moulding machine manufacture,and we have enough experience in machine making.
General the elements of influence the injection including:
mould,products,plastic material,demoulding and son on,so before select,we should get the following information:
1.
Mould dimension(width,hight,thickness),weight,special design;
2.The plastic material used and number(one or various material);
3.Overmoulding products' external dimension(length,width,hight,thickness),weight;
4.Overmoulding requirements:quality term and produce speed
After got the information above,then we could select the machine as below step:
Firstly:choice the right type-decide by the products and plastic
Due to the injection moulding machine have many kinds of types,so we should
got that it is the General thermoplastic plastic or Bakelite raw materials or PET raw material
Secodly:suitable for mould inside
Mould size decide the distance between tid-bars,mould hight
Thirdly:easy for mould take out
Mould and products decide the opening stroke and demoulding stroke
Fourthly:locked steady
Products and material decide the locking tonnage ton
Fifthly:injection fully
Decided by the products weight and cavities to choice the suitable Screw.
Sixth:injection well
Plastic material decide the screw compression ratio and the
injection pressure.
generally ,the smallest screw could provide the higher injection pressure .
Seventh:injection fastly
Should make sure the injection speed
Many products need high speed injection pressure to make sure the products overmoulding stability.

Presenter Zoe Zhang
www.sinomould.com
Skype: sinogroupe-59
Msn : sinogroup-01@hotmail.com
Tel :0576 81107161
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