Current location - Plastic Surgery and Aesthetics Network - Plastic surgery and beauty - Injection molding, loose materials and product cracking after mold opening, what are the reasons?
Injection molding, loose materials and product cracking after mold opening, what are the reasons?
San plastic is an acrylonitrile-styrene polymer, which belongs to ethylene and is a common material, so it is easy to form plastic.

SAN/AS plastic

Chemical name: acrylonitrile-styrene polymer

English name: acrylic style

Characteristics of raw materials:

1, which belongs to ethylene, is a common material and easy to form plastic.

2. Good fluidity, good formability and good formability.

3. Strong and hard

4. Good long-term light resistance and heat resistance.

5. Good dimensional stability, weather resistance, oil resistance, impact resistance and chemical stability.

6, soluble in organic solvents such as ketones.

7, easy to crack

8, easy to waste edges.

You can check whether the demoulding inclination of the core is too small and whether the demoulding agent is sprayed unevenly during injection molding. Whether the stress is uneven when demoulding. Because the material itself is very strong and rigid, it is easy to crack. Therefore, special attention should be paid to mold making and injection molding.