How to calculate the cost of a plastic injection molding part

The most basic costs of a plastic injection molding part mainly include: Raw material cost, mold sharing cost, equipment depreciation & sharing cost, processing (water & electricity) cost, labor cost, site rental and other overhead costs; Now we are going to analyze the cost structure of a plastic part with a specific example: Assumptions: Product: …

How to calculate the cost of a plastic injection molding part Read More »

Two color molding and overmolding

I. Advantages of Two-Color Molding: Two-color molding may also be referred to as 2-shot molding, bi-injection molding, co-injection molding, or multi-shot injection molding, which produces a part with two different colors and/or materials in a single operation. A two-color mold is able to combine two resins with different characteristics and colors into a single two-color …

Two color molding and overmolding Read More »

Silver Streaks – Defect Analysis & Troubleshooting

What are silver streaks? Silver marks / silver streaks are splatter marks on product surface which are caused by the volatilization of air and moisture contained in the plastic material, or the decomposition and burning of mixed dissimilar plastics. Usually, they radiate outward in a fan-shaped manner from the gate location. Many plastic materials absorb …

Silver Streaks – Defect Analysis & Troubleshooting Read More »

Wall Thickness Design of plastic injection molded products

The wall thickness of a plastic injection molded product greatly influences its quality. If the wall thickness is too small, it will be difficult to meet the requirements for strength and rigidity, and fill the cavity for large and complex products; if the thickness is too large, it not only wastes the raw material, but …

Wall Thickness Design of plastic injection molded products Read More »

PBT

What is PBT? Polybutylene terephthalate, Abbr. PBT, falls into the polyester series. It is a milky white, translucent or opaque crystalline thermoplastic polyester resin polymerized from 1.4-pbt butylene glycol (1.4-butylene glycol) and purified terephthalic acid (PTA) or dimethyl terephthalate (DMT), before going through a mixing process. It is collectively referred to as thermoplastic polyester, or …

PBT Read More »

PET

What is PET? Polyethylene terephthalate (PET) is also known as polyester. Currently, GF-PET is the most popular variant among the clients.The rheology of the molten state PET is very good, while pressure has a greater influence on its viscosity than temperature. Therefore, the former is mainly leveraged to change the fluidity of PET melt. 1. …

PET Read More »

Scroll to Top