saadracing
Plastic
- Joined
- Feb 22, 2016
I am making a mold to inject HDPE. The final product is just a flat rectangle sheet of plastic with a smaller rectangle on top of it by 0.250" thick. I am making a aluminum cylinder to melt the plastic and then use our press to inject to plastic into the cavity of the 3 piece mold (which the mold will also be heated to 350 Degrees). This will be a 3 piece mold with a flat plate on top and bottom of this cavity (all of the hole will be where it bolts together).My question is looking at the drawing of the cavity (the green colored area is where the plastic will fill), where is the best place to inject the plastic and how many/do I need small holes to allow air to escape?