Prototype silicon operation
Time:2012-12-25 17:23 source:
Leecheer Author: Leecheer Click:
First handle the original mold or the product you want to copy.If the product you want to copy or
mold not smooth or perfect as without grinding or polishing,the product made by silicon cannot
reach the requirement.
The weight ratio need to be accuracy.A group silicon,B group curing agent.The curing agent is
generally added an amount of 2%-3%. For example,100g silicon need to match 2g curing agent.
Add the curing agent to the silicon and then stir(notice:the silicon and curing agent need to be
weighed accuracy at the electric scale.According to the local temperature conditions:around 25
degrees can add the curing agent as above ratio,if the local temperature is around 10 degrees,
then need to add about 5% curing agent.If the local temperature is below 5degrees,the curing
agent wouldn't react with the silicon;if the local temperature is between 38 to45 degrees,then
need to add 1%curing agent.
After stirring the silicon and the curing agent at a certain percentage,then make vacuum
treatment.As it will produce bubbles when stirring,if didn't make the bubble out,then the silicon
mold would have a lot of air hold, the tension of the mold would be reduced,the rolling over
times would be reduced, and also would affect the smoothness of the mold,even the quality
of the product.
Keywords: Prototype,silicon,operation,