Application Scenarios For Internal And External Plastic Parts in Home Appliances

The application scenarios for internal and external plastic parts in home appliances have been fully covered by existing materials; no further search planning is required. The complete content is as follows:

 

Application Scenarios for External Plastic Parts
Unit Casings: Casings for refrigerators, air conditioners, washing machines, televisions, and microwave ovens typically utilize modified PP, ABS, or PC/ABS alloys. These materials accommodate complex aesthetic designs while balancing insulation, flame retardancy, and impact resistance.
Decorative Components: Door handles, decorative strips, control panels, knobs, air deflectors, fan blades, and unit frames often use high-gloss ABS, PMMA, or electroplating-grade ABS to meet aesthetic and operational requirements.
Protective & Connecting Parts: Components such as air conditioner panel clips, detachable decorative covers, and unit bases utilize flame-retardant PP or reinforced ABS. These materials enable tool-free assembly and disassembly while eliminating the risk of metal corrosion.

 

Application Scenarios for Internal Plastic Parts
Thermal Insulation:The insulation foam layers within refrigerator doors and cabinets primarily use polyurethane (PU) to achieve low thermal conductivity; these components account for 40%–50% of the total plastic cost of a refrigerator.
Structural Liners: Components such as refrigerator liners, door liners, dishwasher spray arms, dish racks, and structural liners utilize HIPS, high-temperature resistant nylon, or reinforced PP to withstand high temperatures, high humidity, and detergent corrosion.
Storage & Load-bearing Parts: Refrigerator drawers, crisper bins, bottle holders, and shelves are made from PP or GPPS. These materials offer good toughness and dimensional stability while meeting food-contact safety standards.
Electrical Safety Components: Motor housings (for TVs and washing machines), electronic control boxes, and coil bobbins utilize flame-retardant PS, ABS, or PBT. These materials meet UL94 V-0 flame retardancy standards to mitigate electrical safety hazards. Functional and auxiliary components: Refrigerator door seals, hinges, bushings, air conditioner filter brackets, and components surrounding the heating zone of electric irons. These utilize PE, POM, and PA+GF materials to deliver specific performance characteristics such as wear resistance, temperature resistance, and sealing capabilities.