1. Preparation before installation
Please verify the operations of the cooling water circuit and ensure that the screws are inserted into the machine board at a depth of 1.5-1.8 times the screw diameter. Inadequate screw insertion may cause tooth slippage and increase the risk of mold detachment. It is crucial to ensure that all necessary personnel, materials, tools, documents, equipment, and auxiliary machinery for production are readily available.
2. Method of hanging formwork
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Uneven hanging of the mold can cause variations between the front and rear cavities of the mold, which may affect the quality of precision products. This can result in issues such as poor concentricity, differences in segments, inaccurate tooth shape, and inconsistent distances. Therefore, it is important to ensure that the mold is properly leveled and aligned before use, especially when dealing with high-precision applications. By doing so, manufacturers can minimize the risks of defects and achieve optimal results.
It's important to take note of certain factors when installing a mold. Once the hanging mold is in place, make sure to manually check it for any extra space or looseness that can cause it to shift or move. Adjust the lifting ring according to the front mold's positioning ring for maximum accuracy. Next, make sure that the rear mold is perfectly leveled with the front mold, allowing the mold cavity to align seamlessly. Once everything is in place, go ahead and close the mold. However, it's important not to apply high pressure right away. Wait until it's confirmed that the mold can be closed normally before beginning high pressure applications. This approach can help you avoid any potential mold damage or malfunctions, ensuring optimal operation in the long run.
3. Method of screwing
When the mold temperature is below 50 degrees Celsius, it is important to close and start the mold under high pressure. To ensure proper tightening, it is recommended to tighten the screws diagonally on both the front and rear molds. However, it is crucial to not overtighten the screws before the mold temperature reaches 50 degrees Celsius. Once the desired temperature is reached, high-pressure operations can commence, and the screws can be tightened diagonally as instructed. It is crucial to follow these steps for optimal mold performance.
When the temperature of the mold material rises, its volume tends to expand and swell. Such an effect becomes more pronounced at higher temperatures. In case the screws are tightened prior to heating, it may affect both the lifespan of the mold and its accuracy.
4. Use of accessories
In cases where the mold thickness is insufficient, a template should be added for support. Moreover, when dealing with high-temperature molds, it is advisable to use an insulation board to create a barrier between the machine board and the mold. It is crucial to ensure that both the template and the insulation board are as level as possible for effective performance.
When the flatness of the product is significantly distorted, it indicates that the front and rear molds of the mold are not aligning properly and remain non-parallel. This discrepancy negatively impacts the quality of the final product. To rectify this issue, it becomes necessary to apply high pressure during closure. However, even after the closure, the difference in alignment persists, thus continuing to affect the overall product quality. To address this, it is crucial to monitor the mold temperature closely and adjust the mold thickness accordingly once the desired temperature is achieved. This adjustment helps to ensure that the mold aligns properly, thus improving product quality.