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The principle of low-pressure perfusion molding

Time:2014-01-15 16:12 source: Leecheer Author: Leecheer Click:
The principle of low-pressure perfusion molding is: the liquid two-component materials were
sent to the mixing mechanism according certain proportion through low pressure embellish
injection equipment,after impact and mixed,inject to the mould in 4-5MPa low pressure,the 
mixing two-components of material will rapid reaction in the mould . Becomes a product after 
aggregated, crosslinking and curing and demoulding. To guarantee the material fully cured and
reduce the deformation, generally after the injection, need to move the mold into the oven after 
curing. According to the technological requirements,the mold and material need to be heated 
before injection. The Current raw material is given priority to with polyurethane. According to
different raw material ratio of products properties respectively similar to PP, ABS and PS. 
Low-pressure perfusion molding besides can use the silicone mold, also can use polyurethane
mold, resin mold and other mixed type mold. Such as silicone + resin mold, poly n vinegar resin
mold and so on.
 
Keywords: The,principle,low-pressure,perfusion,molding, 
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