Plastic Injection Molding Materials - Tepco India

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Plastic Injection Moulding Components 

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Plastic Injection Moulding Components - Tepco India

In plastic injection molding troubleshooting, warpage is one of the most common quality issues. So what is warpage? Warpage is excessive change of shape of the part after it has been ejected from the injection mould. Also known as deformation, a warped part will twist or bend due to internal stresses in the part caused by uneven shrinkage rates or by some mechanically applied forced such as during the ejection phase. Eliminating part warp can have huge cost savings and should be part of a lean manufacturing program. But how to fix warp? The root causes of warp can be grouped into 5 different areas:
1. Incorrect processing parameters
2. Mould issue
3. Injection moulding machine issue
4. Part design issue
5. Poor plastic material selection.

Plastic Injection Moulding

Furniture plastic parts

 Isolating which area is causing the warp can be quite difficult so it must be done in a step by step procedure eliminating each possible cause one at a time. When doing plastic injection molding troubleshooting, keep an open mind because the cause might be different to what you think it is.