Car lights are mainly used for lighting, which can be said to be the eyes of cars. Car lights are the collective name for all car lighting systems. The appearance of automobile lights has high requirements, and several important parts are transparent parts and electroplated parts. It can be said that the most demanding part of the car's appearance is the lamp. Therefore, the requirements for auto lamp mould design and production are extremely high. The main lighting of a general car is the front and rear headlights. Different car series have different configurations of lights, and the same car series are different according to the height configuration. The main parts that make up the front and rear lights of the car are: left and right lenses, left and right decorative frames, left and right lamp housings, left and right reflectors, etc.

Car Headlight Mould Appearance Requirements

Lens (Material: Transparent PC): Steel CAV / COR: NAK80 or S136H (HRC33-37), the hardness of the cavity and core is staggered. The product is highly polished, can't pass the whetstone, save the mold to 1000# sandpaper and then polish.

The decorative frame ( Material PBT ): Mold Steel: CAV: NAK80 or S136H (HRC33-37), COR: forged steel HRC31-35, the product is highly polished, can not pass whetstone save the mold to 1000# sandpaper and then polish. The cavity side ( reflective surface) can not be welded.

Reflector (Material BMC): The cavity and core are made of 8407 steel (to achieve a high polishing effect), the cavity steel is HRC46-50, and the core steel is HRC44-48. The cavity side (reflecting surface) is high polished, and can not pass the whetstone, save the mold to 1000# sandpaper and then polish, the core side is generally 600# polished.

Basic Information for Car light Mould

Auto Lamp Mould Specification

Description Automotive lights Injection Mold

Mold base LKM; HASCO; DME, etc

Mold cavity&core steel P20,2738,718H,738H,NAK80,SKD61,E420,etc.

Nos of Cavity Single or Multi

Finish Anodized,Polish,Silk-screen,Painting,etc

Hot runner brand YUDO, HUSKYFISA, HASCO, MOLD-MASTER

Product material ABS,PP,PE,POM,PMMA,PC etc

Mold life 100k-500k shots

Manufacture time (day) 30-45 days

Packing Vacuum+plywood wooden box

Packing Vacuum+plywood wooden box

Car Light Mould Technology Summary

Plastic features: transparent color, high requirements for the appearance surface, no spots/gate/marks, no bubbles/ fog halo/shrinkage mark/ welding lines, and other forming defects.

In view of the plastic color transparent, the use of an ordinary runner can avoid the plastic color difference, improve transparency, coupled with the plastic surface is not allowed to have gate marks, so use the side gate gating system.

Car light mould adopts the combined cooling system of "vertical cooling water pipe, inclined cooling lines, and splice water well", and the waterway is arranged along the cavity, effectively ensuring the precision of the plastic parts and the labor productivity of the mold. The plastic parts are ejected out by an ejector block, which is not only stable but also leaves no influence on the appearance of the product.

In the molding of transparent mold, the design of the exhaust system is very important, such as poor exhaust, will seriously affect the quality of plastic parts, in view of the product material for PC, exhaust front-end design for 0.02mm, around the product according to CAE analysis of reasonable design exhaust, reduce the bubble or air trapping caused by local burns and other problems during injection molding.