In the molding world of plastic products, the quality of the mold directly determines the quality of the product. Pinbo's senior mold development engineers know that the manufacture of each mold is a delicate process involving several key steps. The following is the general process to ensure mold accuracy and high quality of the final product.

Key steps of mold manufacturing 

1. Mold Design : Using CAD software, our designers create an accurate 3D model of the mold, including the cavity, core, gate and thimble, ensuring that every detail is in accordance with the design specification.

2. Material selection : Based on the requirements of durability, strength and temperature resistance, we carefully select the most suitable mold materials to ensure the stability and reliability of the mold in long-term use.

3. Component processing : Precise machining of mold components, such as cavity and core, through CNC machine tools to ensure that their dimensions are accurate and smooth, laying a solid foundation for high-quality products.

4. Heat treatment : By heating the mold to a specific temperature and cooling it slowly, we eliminate the residual stress inside the material and enhance the durability and strength of the mold.

5. Surface polishing : The polishing of the mold surface is crucial, and we polish it to the mirror effect to prevent the adhesion of plastic materials and ensure the surface quality of the product.

6. Mold assembly : The key components such as the mold cavity and core are accurately assembled with the mold base, gate, ejector rod and other components to ensure the integrity and functionality of the mold.

7. Mold test  : Before the actual production, we conduct a comprehensive test on the mold to ensure that its function is normal, the gating and ventilation system is designed reasonably, and it can produce products that meet the requirements.

Plastic mold finishing steps

1.  Grinding and polishing : The first step of finishing is to use sandpaper and polishing agent to polish and polish the mold surface to ensure that it is smooth and flawless.

2. Cleaning treatment : After polishing, we thoroughly clean the mold to remove debris or contaminants that may be produced during the finishing process, usually using solvents or special cleaning solutions.

3. Coating application : In order to improve the durability of the mold, we may apply a protective layer on the mold, such as chrome plating or Teflon coating, to prevent wear.

4. Quality inspection : Before the mold is put into production, we carry out strict quality inspection to ensure that the mold is free from defects and meets the specifications, including checking for cracks, warping or other potential damage.

5. Proper storage : The mold completed the inspection will be properly stored to protect it from damage and ensure that the mold is in good condition for future use.

In general, the finishing of plastic molds is a key link to ensure the quality of plastic parts. This process requires strict attention to detail and precise execution to ensure that the molds are properly prepared and that the plastic parts produced using these molds meet the specifications. At Pinbo, our team of engineers pay extreme attention to every detail of this process, ensuring that our molds and final products meet the highest quality standards.