Improper mould design will result in defects of the finished product. Therefore, before modifying the mould, it is necessary to test and evaluate the mould, to optimize the mould design and parameters, so as to avoid unnecessary errors, and meet the high quality requirements of mass production.

The defects of most molded products are caused during the plasticizing and injection stages, but sometimes they are also related to improper mould design. The possible factors include: the number of cavity, the design of cold or hot runner system, the injection location and size, and the product structure. Therefore, in order to avoid product defects caused by mould design, we need to analyze the design and parameters when making the mould.

When obtaining the test results, the operator usually needs to evaluate the specific situation of the mould in order to avoid adding unnecessary cost and time. This assessment also includes the setting of machine process parameters.

The purpose of the mould test is to find out the optimized process parameters and mould design. In this way, even if factors such as materials, machine settings or environment have changed, it can still ensure a stable and continuous mass production, not just to obtain a good sample.