Huadian Mold's PET preforms feature:
1. 100% virgin PET resin;
2. High transparency;
3. High toughness;
4. High blow rate of 99.7-99.8%;
5. Low defect rate;
6. A variety of necks and weights for your choice;
7. Available in various colors;
8. Lower cost and reduced time required to open a new mold;
9. On-time delivery;
10. Competitive pricing and high quality (hot runner system preform mold).
Hot runner molds are widely used in industrialized countries and regions around the world. This is primarily due to their significant advantages:
1. Shortened molding cycle
Because there's no cooling time constraint on the runner system, parts can be ejected immediately after solidification. Many thin-walled parts produced with hot runner molds can achieve a molding cycle of less than 5 seconds.
2. Savings on plastic raw materials
Because pure hot runner molds lack a cold runner, there's no production cost. This is particularly significant for applications where plastics are expensive. In fact, major international hot runner manufacturers experienced rapid growth during the era of high oil and plastic raw material prices. Hot runner technology is an effective way to reduce material costs.
3. Reduced scrap and improved product quality
During the hot runner molding process, the plastic melt temperature is precisely controlled within the runner system. This allows the plastic to flow more evenly and consistently into each mold cavity, resulting in consistent part quality. Hot runner molded parts exhibit superior gate quality, low residual stress after demolding, and minimal part deformation. Therefore, many high-quality products on the market are produced using hot runner molds. For example, many plastic parts in familiar MOTOROLA mobile phones, HP printers, and Dell laptops are made using hot runner molds.
4. Eliminating subsequent processes facilitates production automation.
After being molded in a hot runner mold, the part is immediately finished, eliminating the need for gate trimming and cold runner recycling. This facilitates production automation. Many international manufacturers have combined hot runners with automation to significantly improve production efficiency.
Huadian Mold Warm Reminder: Mold Maintenance Precautions:
1. When disassembling the mold, avoid bruising and water exposure, and move smoothly.
2. Spray the hot mold, then apply a small amount of mold release agent.
3. Thoroughly inspect the mold and perform rust prevention: Carefully wipe away moisture and debris from the cavity, core, ejector mechanism, and slides. Spray the mold with mold anti-rust agent and apply butter.
Huadian Mold Knowledge Sharing: Mold Maintenance
During continuous operation, molds are prone to component wear, lubricant deterioration, water leakage, and plastic material crushing due to movement, necessitating mold maintenance. Mold maintenance is generally divided into daily maintenance and lower mold maintenance. Daily mold maintenance generally includes the following aspects:
1. Regular rust removal (exterior, plastic surface, mold cavity, core, etc.)
2. Regular relubrication (ejector mechanism, slide, etc.)
3. Regular replacement of wear parts (tie rods, bolts, etc.)
4. Other considerations
Lower mold maintenance requires professional maintenance personnel to disassemble the mold and conduct professional testing and maintenance of the mold cavity, ejector pins, and other components.