Triangular Lamp Shade Mold - Quality Injection Mold from China Suppliers and Factory
The core components of this mold (cavity and core) are made of 718 pre-hardened plastic mold steel. This steel typically has a factory hardness between 28-35 HRC, offering excellent polishing performance, wear resistance, and dimensional stability, making it ideal for manufacturing high-precision plastic products with stringent surface finish requirements. The mold base is made of 45# high-quality carbon structural steel, which, after heat treatment, exhibits excellent comprehensive mechanical properties and is commonly used in manufacturing support structures within molds.
High-precision forming
◎ 718 steel has excellent mirror polishing performance, which can ensure the smoothness and optical quality of the lampshade surface.
High durability
◎ The pre-hardening properties of 718 steel prevent deformation during heat treatment and improve the long-term stability of the mold.
High-efficiency cooling
◎ The water-cooling system design helps to shorten the injection molding cycle and improve production efficiency.
Reliable demolding
◎ The combination of pin ejectors and ejector plates ensures smooth and stable demolding of lampshade products.
This mold is particularly suitable for the mass production of automotive lighting fixtures (such as triangular headlight covers) or high-precision lighting equipment. The excellent properties of 718 steel enable it to meet the manufacturing requirements of plastic parts with high demands for surface finish, dimensional accuracy, and mass production life.
| Cavity material | 718 steel |
| Core material | 718 steel |
| Mould base material | 45# |
| Ejection system | Pin ejector and ejection plate |
| Number of cavity | 2 cavities (right + left) |
| Gate | Hot runner system + Normal side gate |
| Cooling system | By water |
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What material is used for the cavity and core of this mold?
Both the cavity and core are made of 718 pre-hardened plastic mold steel, which offers a factory hardness of 28–35 HRC, excellent polishing performance, and superior dimensional stability for high-precision applications.
Why is 718 steel chosen for this type of mold?
718 steel is selected for its outstanding mirror polishing capability, wear resistance, and pre-hardened properties that prevent deformation during heat treatment — making it ideal for producing plastic parts with demanding surface finish and dimensional accuracy requirements.
What ejection system does this mold use?
This mold uses a combination of pin ejectors and ejector plates to ensure smooth, stable, and reliable demolding of lampshade products during the injection molding process.
What type of gating system is used in this mold?
The mold features a hot runner system combined with a normal side gate, which helps optimize material flow, reduce waste, and maintain consistent part quality throughout production.
How does the cooling system work and why is it important?
The mold uses a water-cooling system that efficiently removes heat from the mold during each injection cycle. This shortens the overall molding cycle time and significantly improves production efficiency and output capacity.
What industries or applications is this mold best suited for?
This mold is especially well-suited for mass production of automotive lighting fixtures such as triangular headlight covers and high-precision lighting equipment, where surface finish, dimensional accuracy, and long mold service life are critical requirements.