In the production process of ABS plastic, it is not difficult to find that different grades of ABS products exhibit significant color differences. Even within the same grade, different batches of products may also have noticeable color variations. When using masterbatch for coloring, this color deviation phenomenon is equally difficult to avoid. What is the reason for this? Actually, it is mainly attributed to the unique properties of ABS plastic. Therefore, when using ABS masterbatch, customers must fully understand and pay attention to this characteristic of ABS, especially when dealing with the constriction of gates or plastic parts in injection molds.
Next, let's delve deeper into the multiple reasons that cause difficulties in ejecting ABS from the mold:
I. Equipment Factors
Insufficient ejection force during the process of ejecting the product directly leads to difficulties in mold ejection.
II. Injection Mold Aspects
If the mold's ejection structure design is unreasonable or the location is incorrectly chosen, it will cause trouble for ejection.
Insufficient ejection taper will also increase the difficulty of ejection.
High mold temperature or poor ventilation in the mold cavity will equally affect the smoothness of ejection.
Rough and uneven surfaces of the runner wall or mold cavity will also pose certain obstacles to ejection.
If the nozzle does not fit tightly with the mold feed inlet or the nozzle diameter is larger than the feed inlet diameter, it will also lead to ejection difficulties.
III. Injection Molding Process Aspects
Excessively high barrel temperature or excessive injection volume will make it more difficult for the plastic material to be ejected from the mold.
Excessively high injection pressure or prolonged holding and cooling times will also increase the difficulty of ejection.
IV. Raw Material Factors
Insufficient release agent in the raw material is also an important reason for the difficulty in ejecting ABS from the mold.
In summary, the issues of color deviation and ejection difficulties in ABS plastic are closely related to its unique properties and various production factors. In actual production, we need to address these issues from multiple aspects such as equipment, molds, processes, and raw materials, and implement comprehensive measures to effectively solve these problems and ensure the quality and production efficiency of ABS plastic products.