1. Tube mold
To prevent the thinning of the inner wall of the tube mold and ensure a dense and uniform pockmarked texture, it is recommended to decrease the speed of the tube mold. Additionally, it is advisable to avoid having a shallow inner wall of the tube mold. Instead, you can increase the wind pressure and grind any nodding to create suitable pockmarks. This will help achieve satisfactory results.
When it comes to pipe molds, brand new ones may have grease and debris on their inner surface. To ensure smooth operation, it's important to remove this buildup before using the mold. In situations where the mold has hairline cracks, it's best to assess the severity of the issue. If the cracks are mild, using more mold powder could help. However, for more severe cracks, it's best to change the mold entirely. Taking these precautions can help ensure the longevity and effectiveness of your pipe molds.
2. Adjust the position of the chute
When the tap hole of the chute is not shaped properly or located too far away from the socket, it can cause the formation of a heavy skin on the pipe's socket area. In order to prevent this issue from occurring during production, it is important to conduct regular equipment checks and make necessary adjustments. This includes altering the tap hole of the chute head and adjusting the centrifuge host's limit when it is in the lower position to help reduce the distance between the tap hole and socket area. With these measures in place, it is possible to ensure a smoother and more efficient production process.
3. Control the temperature of molten iron
To avoid heavy skin defects, it is crucial to maintain the appropriate temperature of the molten iron and inner wall of the tube mold during the production process. The temperature should be strictly regulated according to the intermediate frequency furnace process. If the temperature is too low, it can cause numerous issues that lead to subpar quality products. Therefore, it is recommended to use a centrifuge to control the temperature and cooling speed of the water inlet and outlet during production to ensure the quality of the final product. By following these guidelines, you can produce high-quality products that meet all quality standards.
It is possible to regulate the rate of the primary machinery, the frequency of bag flipping, and the velocity of the tube mold.
While casting, a majority of the molten iron that pours out of the channel moves in the forward direction, but there's still a small quantity of molten iron that flows backwards. This causes the formation of a backward "flow" occurring beyond the spot where the liquid iron falls.
To address the issue of quality defects arising from the centrifuge host's slow speed during production (which is slower than the required "flow" speed), it is necessary to boost the host's speed in order to shorten the casting duration.
