The refrigeration capacity of the refrigeration unit and the heat insulation performance of the truck body together determine performance of the refrigerated truck. The vehicle refrigeration unit can reduce the temperature in the compartment and keep it at the required transportation temperature for the goods, but the refrigerated vehicle body is often damaged due to external forces during use, especially for novice drivers, because of excessive height rods or light Bad or unfamiliar road conditions, etc., cause the vehicle to collide, cause damage to the refrigerated compartment, and seriously affect the transportation temperature of the cargo in the compartment. What are the common damage and repair methods of the refrigerated compartment?
1. Repair of scratches and cracks on the inside and outside of the refrigerator compartment
Scratches and cracks on the outer skin of the refrigerated compartment will directly affect the appearance of the compartment, while deep scratches and cracks on the outer skin of the refrigerated compartment may affect the insulation performance of the insulated compartment. The repair method is to first polish the scratches and cracks into a rough surface, then apply the mixed putty evenly on it, after the putty is dry, polish it to smooth, and finally spray paint.
2. Repair of damaged insulation layer of refrigerated compartment
Due to impact or other reasons, the insulation layer is damaged, which is very likely to make the refrigerated car body lose its insulation performance. The repair method is mostly to cut off the damaged part of the insulation layer with a minimum area, and make the same size polyurethane insulation material and glass steel plate, cover the insulation material with glass fiber felt, coat with unsaturated polyester glue, and paste the inner and outer glass fiber reinforced plastic The board is placed in the hole of the cut compartment board, and the external force is used to fix it with the whole compartment board. After the glue is cured, it will be polished and sprayed for about 1 to 2 hours.
3. Small area peeling repair of the inner and outer skin of the refrigerated compartment
The small area peeling of the skin inside and outside the compartment is commonly known as bubbling. It is because a small amount of gas between the skin and the insulation layer cannot be discharged in time during the production of the compartment board, which makes the skin and the insulation layer unable to fully bond. This phenomenon is likely to cause the entire skin to be completely peeled off, and if it is serious, it will affect the insulation effect. The repair method is mostly to drill a small hole of 8mm in the middle of the peeling part of the compartment board, inject the unsaturated polyester glue into it with a glue gun, and compress it with external force. After the glue is completely cured, the paint is finally sprayed.
