Customization-2

Number of mold cavities: 1 Mold material: NAK80 Part weight: 104 g Molding cycle: 35 s Injection molding cycles: 300,000 cycles Injection molding material: PC Application scope: Motorcycle helmet lenses

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Guangxi Hongchao Industry

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precision mold

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- Commodity name: Customization-2
Number of mold cavities: 1 Mold material: NAK80 Part weight: 104 g Molding cycle: 35 s Injection molding cycles: 300,000 cycles Injection molding material: PC Application scope: Motorcycle helmet lenses

Number of mold cavities: 1
Mold material: NAK80
Product weight: 104g
Molding cycle: 35s
Injection mold cycle: 300,000 times
Injection-molded material: PC
Scope of application: Electric vehicle helmet lens

Technical Summary:
Integrating optical mold design, high-performance material applications, ultra-precision machining, and advanced composite manufacturing technologies. Mold fabrication focuses on the lens’s high light transmittance, surface precision (zero refractive power/zero astigmatism), and impact resistance.
Process Focus: Ultra-smooth cavity machining, employing a stepwise process of “mechanical polishing + manual fine polishing.” First, knife marks are removed using grinding wheels and oil stones (Ra ≤ 0.8 μm), followed by fine polishing with diamond polishing paste to achieve an ultra-smooth mirror finish (Ra ≤ 0.01 μm). This ensures that the lens has a light transmittance ≥ 90% and is free from scratches and orange-peel defects.

Production Highlights:
Ultra-smooth cavity polishing (Ra ≤ 0.01 μm) combined with a DLC coating reduces melt adhesion, extending the mold’s service life to over 500,000 cycles. The mold is designed with quick-change insert interfaces, allowing users to adapt to different curvatures and specifications of full-face or half-face helmet lenses by simply replacing the inserts, thereby enhancing the mold’s versatility.

The injection-molded materials for the helmet attachment accessories are:
1. Lining: PP
2. Lens knob assembly: POM

Customization-1

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Customization-2

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Number of mold cavities:	1
Mold material:	NAK80
Product weight:	104g
Molding cycle:	35s
Injection mold cycle:	300,000 times
Injection-molded material:	PC
Scope of application:	Electric vehicle helmet lens