Customized Plastic Cap Injection Mould Moulding Kitchen Oil Cap Mold

The core design goal of the easy - pull ring cap mold for oil bottles is to ensure that the pull ring can be easily opened while maintaining the product's sealing performance and durability. To achieve this goal, the mold processing and material selection are of great importance.

- Mold Processing Content: First, the grooves and connecting parts of the pull ring need to be precisely processed to ensure that the connection strength between the pull ring and the cap body is moderate. It should be able to withstand external forces during transportation and storage, while also being easy to open during use. Second, the parting surface of the mold must be finely processed to ensure the flatness and sealing performance of the cap edge. In addition, the design and processing of the gating system also require careful attention to ensure that the plastic melt can evenly fill the mold cavity, avoiding defects such as short shots and air bubbles.

- Precision Requirements: The dimensional accuracy of the connection point between the pull ring and the cap body is extremely high, with the error controlled within ±0.05 mm to ensure consistent opening force of the pull ring. The surface roughness of the mold cavity needs to reach Ra0.4 - Ra0.8 to ensure a smooth surface of the cap without obvious processing marks. The assembly accuracy of the mold is equally crucial, and the fit clearance between various components should be controlled within a reasonable range to avoid issues such as flash and burrs.

- Mold Materials: Commonly used mold materials include pre - hardened steels (such as P20, 718) and hot - work die steels (such as H13). Pre - hardened steels have good machining and polishing properties, and the hardness can reach HRC30 - HRC35 after heat treatment, making them suitable for manufacturing molds with medium production volumes. The hot - work die steel H13 has higher thermal strength, wear resistance, and thermal fatigue resistance, with a hardness of HRC48 - HRC52, making it suitable for manufacturing molds for mass production. In addition, to improve the service life and surface quality of the mold, surface treatments such as nitriding and hard chromium plating can be applied to the mold surface.

Product Description

	ADVANTAGE   1) Saving 40% cost than others.   2)  Direct factory price   3) Life:3, 000, 000 time   4) 2D and 3D provided   5) Quick T1  time: 25-40 days   6) More than 15 years experience
	MOULD  MANUFACTURE  PROCESS   Cap Mould : grinding→fly-cutter →CNC   Milling→drilling→lathe→boring lathe→electric pulse →fine   fly-cutter→polish→electroplate→install

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