Transparent waterproof junction box manufacturers: how to choose a waterproof junction box?
Waterproof junction boxes are mainly divided into special-purpose and general-purpose products. The main raw materials are: ABS engineering plastics, polycarbonate (PC), PC/ABS, glass fiber reinforced polyester, and stainless steel. So how to choose the waterproof junction box correctly?
1. Selection of data:
At present, the primary application field of waterproof junction box products is the worksite and the open-air site with relatively harsh environment. When considering product safety and function, the impact resistance, static load strength, insulation, corrosion resistance and flame retardant properties of materials should be considered. (The non-toxic function has been widely concerned, mainly because if the waterproof junction box product encounters a fire, it will not release toxic and harmful gases when incinerated. Generally, it is often killed by inhaling a lot of toxic gases during a fire. Majority.
2. Structural design:
The overall strength, beauty, easy processing, easy installation and recyclability of the waterproof junction box should be considered. At present, the waterproof junction box products produced by mainstream manufacturers in the world do not contain any metal accessories, which can simplify the recycling process of the products. However, the materials selected by most domestic manufacturers are different now, and the anti-glutinous properties of the materials are not good. Generally, brass inserts are installed in the device sockets in the waterproof junction box to increase the device strength, which will affect the data recovery process. Add time and cost. Such problems can be solved if the raw materials with high performance indicators provided by regular manufacturers are used.
3. Wall thickness:
In general, when designing a product, considering the overall cost of the product, the wall thickness of the product should be reduced as much as possible while satisfying the impact resistance and anti-waxy deformation function of the product. When designing the waterproof junction box in the world, the wall thickness of ABS and PC materials is generally average. It is between 2.5 and 3.5, the glass fiber reinforced polyester is generally between 5 and 6.5, and the wall thickness of die-cast aluminum material products is generally between 2.5 and 6. The material wall thickness should be designed to meet the installation requirements of most components and accessories.
Transparent waterproof junction box manufacturers
4. Selection of sealing rubber ring materials:
Regarding waterproof junction box products, the commonly used sealing rubber materials are: PUR, EPDM, Neoprene, Silicon. Temperature range, tensile strength, expansion and contraction, hardness, density, compressibility, and chemical resistance should be considered when selecting a gasket.
5. Information on the screws for fixing the upper cover of the waterproof wiring:
When the upper cover of the waterproof junction box is combined with the base, the key component is the bolt, and the selection of the bolt material is also very important. The commonly used material is PA (nylon) or PA alloy, and stainless steel self-tapping screws can also be used. The structural strength of the upper cover screw should be considered in the design. Due to the different application methods of different users and the satisfaction of various application requirements, such as: electric screwdriver device, manual device and other requirements, the torque force of the screw should be considered in the design.
The article comes from: Transparent waterproof junction box manufacturer http://www.deenlaixg.com/