Good quality vowin
performs well not only in tool lift time but also in vowin
ed part quality. A strong mold design leads to higher volume quality. The proper mold design is very important, how to set the injection gate and venting correctly is a great topic!
Gates must be properly places for allowing pressure and proper melt flow. The gate location affects the appearance of the final parts, we can set the gate in an inconspicuous location for avoiding cosmetic issue. Also, the gate size is an important consideration. The proper gate size is helpful for packing the material without expending the cycle time. Short shot may happen when the injection gate size is smaller than the requirements.
Vents must be included in the mold design. It allows the air displays by the melted resin to escape the tool. The size and position of vents are also key factors in production high quality molded parts
. It will have flashes when the vents size is large, and the smaller vent always leads to short shot or burn marks, as the air is trapped.