Material Applications and Performance Requirements for Lamp Shells

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The headlight housing is made from PC plastic with a molecular weight of 2.0 × 10⁴. During molding, the mold temperature must be maintained between 100°C and 120°C. After molding, the finished product undergoes a stress-relief annealing treatment at 120°C for 2 hours. According to the 2024 technical specifications, the 3mm-thick PC material must meet the following requirements:
Visible light transmittance: 88%-90%
Notch impact strength: 80 kg·cm/cm
Yellow Index change value ΔYI < 1.5
The construction machinery lighting fixtures feature a combined structure consisting of an aluminum alloy lamp housing and a No. 45 steel bracket, with heat sinks securely attached via welding. This design ensures that, under operating conditions of 80°C, the temperature rise of the灯具 does not exceed 15°C. Additionally, the fixture is equipped with a built-in spring system boasting a stiffness coefficient of 12 N/mm, effectively reducing over 60% of vibration energy.

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The requirements for using the junction box are as follows:

Structural Design and Manufacturing Process of Lamp Shells

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The engine's valve actuation mechanism features a hydraulic-support ball rocker arm design. Compared to the more commonly used hydraulic tappet system found in modern gasoline engines, this innovative valve drive boasts the advantage of relatively lower frictional torque, which in turn reduces the required actuation force. As a result, it effectively minimizes engine power consumption and helps lower fuel consumption.

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The gearbox consists of two main parts: the gear transmission mechanism and the gearshift control mechanism.

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When using a latch, please note the following:

Monthly check the elasticity of the spring mechanism; if rebound hysteresis is detected, apply grease.

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Name: Ray
Tel/WhatsApp: +86 152 5816 3252
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Email: ray@keenfar.com
Add: No.1961, Shunming Road, Jiangshan Town, Ningbo, China

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