UPVC U Trap Pipe Fitting Injection Mould

Mould name: UPVC U Trap Pipe Fitting Injection Mould

Cavity:  1 cavities

Mould size:110m

Mould steel:Germany2316 china2316 or4cr13 for the cavity and core

Gate :direct gate

mould structure: Oil cylinder

Hardness of core/cavity: HRC 40-45°degree after vaccum heat treatment

Injection moulding machine:  380T

Following is the main information for your reference.

Key points of PVC U-bending mold design and manufacturing

Core pulling mechanism design: This is the core technology of U-bend Molds. How to smoothly remove the curved core and lateral slider from the product requires precise calculations and clever mechanism design (such as hydraulic cylinders, inclined guide columns, etc.).

Demoulding slope: Sufficient slope (usually 1 ° or more) must be designed on the inner and outer walls of the product to ensure smooth ejection and avoid scratching the product.

Shrinkage rate: PVC material will shrink when cooled, and the mold size must be enlarged according to the shrinkage rate of the material (such as 0.5% -0.7%).

Surface treatment: The surface of the mold cavity needs to be polished (even mirror polished) and chrome plated. This can reduce flow resistance, facilitate demolding, and prevent the hydrochloric acid gas generated by PVC decomposition from corroding the mold steel.

Material selection: The main steel used for the mold should be high hardness, high wear resistance, and corrosion resistance mold steel, such as P20, H13, S136, etc.