• A Quick and Easy Guideline to What is Three-plate Mold

    According to the feeding system, plastic injection molds can be divided into two categories, cold runner system molds and hot runner system molds. Based on the number of steel plates, there are two plate mold and three plate molds. Three plate mold is is generally composed of three pieces of steel plate as shown below. THREE-PLATE MOLD is usually structured with a point point gate and it is used for automatic degating and center gating on multi-cavity molds. Three-plate molds are less expensive than hot runner molds and there is also a runner left over. An advantage to gating with a three-plate mold eliminates the need for cutting the gate off the part. Some multi-cavity molds must have a center gate on each part. A three-plate mold is the most economical way to achieve this. Generally, there are pros and cons of three-plate molds Pros of three plate moldsCost less…

    Mold making August 28, 2019
  • 50000$ of Great Loss on a Tooling, Whose Fault?

    As known, tooling life is an important standard to judge the quality of a mold being good or not. And among all factors that affect mold life, steel plays a decisive role as well. Thus it is very important to choose the right steel for your injection mold, otherwise it may ruin the whole project. We paid high fees for the lesson 4 years ago. We built a plastic injection stack mold of toilet Seat for Walmart. It is a 1+1 tooling that to be produced on Vertical Injection Machine. Plastic material is PVC and the required mold steel is Stainless harden to 42/44 RC. Cavity needs to be polished to A1 level. In fact, before this, we had built over 20 seat molds of such kind and accumulate rich experience on the whole manufacturing process. We could build the mold with closed eyes, this was our thinking at that…

    Mold making August 28, 2019


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