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Precautions for maintenance of two-color mold processing

by:Vowin Rapid Prototyping     2023-02-18
Two-color mold processing and maintenance precautions, Shanghai Mulan two-color mold processing factory said that two-color molds are two plastic materials injected on the same injection molding machine, divided into two molds, but the product is only molded once. Because of its high precision, stable quality, good structural strength, good durability, small fit clearance and beautiful appearance, it is becoming more and more popular in the market. However, the two-color mold is expensive and requires high technical requirements, so the entire two-color mold needs to be well maintained in all aspects of design, production, manufacturing, and subsequent use to ensure that the entire
The service life of the two-color mold.

The material selection of two-color mold is a very important link in the whole process of two-color mold processing. In the manufacture of two-color mold, it is usually necessary to evaluate the opening of the mold, optimize the design and process parameters, so as to avoid unnecessary errors and meet the requirements of large quantities. High quality requirements for production. In the subsequent use, the maintenance and maintenance of the two-color mold are mainly carried out from the following aspects:

1. Check if the diffuser hole is rusted or damp

If you notice rust or moisture near the hot runner vent, it could mean internal condensation or a broken pipe. Humidity can cause fatal short circuits in heaters. If the machine does not run year-round, but is turned off overnight or on weekends, the chance of this condensation in the injection mold increases.

The resistance of the electric heater should be measured when it is used once, and now is the time to measure and compare. If the resistance value fluctuates up and down by 10%, consider replacing the heater to ensure it does not fail at critical points in the production process. If the resistance value has never been measured, measure it now and use the resulting value as a reference for future heater checks.

2. Check the water flow

Connect a hose to the outlet of the water line to keep the water in the bucket flowing through the pipe. If the water coming out is not clear or the color is not clear, there may be rust, and the water does not flow smoothly, which means that there is a blockage somewhere. If you find these problems, drill all the pipes again, keep them open. Improving your plant's water treatment system can prevent future problems with rust and clogging.

3. Clean injection mold thimble

For over a year, the thimble has become dirty due to gas buildup and membrane impurities. It is recommended that you clean it with mold cleaner every 6 to 12 months. After cleaning, apply a layer of lubricant to the thimble to prevent scratching or breaking.

4. Check whether there are wear marks and scratches or wipe between the guide rod and the guide sleeve

This wear is due to lack of lubrication. You can also prolong the life of the guide rod and sleeve by increasing the lubrication if the marks are just showing up. If the wear is severe, it's time to replace it with a new part. Otherwise, the cavity and core may not fit well, resulting in parts with varying cavity wall thicknesses.

Two-color mold processing and maintenance precautions, Shanghai Mulan two-color mold processing factory said that the two-color shape is generous and beautiful in appearance, thereby improving its own value and realizing the value of the shape; and it is also conducive to better colors, so there is no need to go too much Spraying. The requirements for the front mold and the rear mold of the two-color mold must be the same, and the processing requirements for the mold base are high. According to the requirements of the product, data control will be carried out on the thickness of the panel of the two-color mold and the distance of the holes, and during the secondary injection molding, it is necessary to pay attention to the glue position of the product that has been formed once, and do not let part of the nostrils. There is also the strength of the glue position at each place.
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