The compartment adopts a typical refrigerator car general large plate assembly structure, which is composed of six large pieces of front plate, rear door plate, top plate, bottom plate, left and right side plates. There are fastening steps between the wing plates. The plates are connected by bolts and two-component structural adhesive, and the outer part is riveted by aluminum alloy profiles. The rear part of the wing plate is set with 2.5mm thick SUS304 stainless steel rear door frame.

The inner and outer panels and core materials are pressed by adhesive to form sandwich composite plate. The outer skin of the carriage is made of glass steel plate with a thickness of 2.6 mm; Inner Mongolia skin material: coated anticorrosive flat aluminum plate, thickness = 1.2mm. Before Inner Mongolia skin pressing, we use our CNC sander to grind the rough surface of Inner Mongolia skin bonding surface to enhance the bonding strength of aluminum plate.

Thermal insulation material: rigid polyurethane foam board (density 45 ~ 48kg/m3, thermal conductivity: 0.018 ~ 0.023W/ * K, compressive strength: more than 0.2Mpa, suitable temperature: - 50 C ~ +70 C); Adhesive: two component structural adhesive.

底板

Bottom plate: the outer skin is made of glass steel plate, and the inner skin is made of anticorrosive flat aluminum plate; The upper surface of the bottom plate is paved with a layer of 18mm thick waterproof plywood, and the lower part of the plywood is provided with channel steel profile and wooden plywood frame, which can not only cut off the cold bridge inside and outside the car, but also strengthen the overall structural strength of the bottom plate and improve the bearing capacity of the car body. The total thickness of the bottom plate is 90mm. The bottom plate is installed with rectangular aluminum alloy profile and duck beak tube drainage device.

前板

The front plate is embedded with the embedded parts of the independent refrigeration unit and opened; The total thickness is 80mm. The front plate is installed with ventilation slot and other accessories..

顶板

顶板：顶板内部设有预埋铁，总厚度为90mm；安装顶灯、蒸发器、机组防护网等附件。

左右侧板

Left and right side plates: the total thickness is 80mm, and the corresponding embedded parts are embedded according to the structural requirements, and the accessories such as ventilation slot and pipe cargo slot are installed.

Rear door panel: the total thickness is 80mm, the rear door panel is openable plate, which is installed with hinge, door lock and other hardware accessories, and the corresponding embedded parts are embedded according to the structural requirements.

Structure design of the back door frame: the design of the back door frame ensures that the back door can be opened 270 degrees. The material of the rear door frame is t = 2.5 mm SUS304 stainless steel plate, which is connected with the car body. The external part is connected with semicircular head screws, and the internal part is double reinforced with countersunk head screws and rivets. The rear door frame and each plate are separated with ABS plastic material to prevent cold bridge.

Design of car seal: reliable seal is an important condition to ensure the car air leakage and heat leakage rate at a high level. At the same time, reliable seal can prevent the car from increasing heat leakage rate in the process of use.

a) Structural seal

Steps are designed at the assembly position of the carriage panel to increase the sealing length of the assembly section and improve the structural strength of the assembly position. The box body assembly glue is coated between the joint surfaces of the carriage panel (including between the rear door frame and the carriage panel) to achieve reliable sealing.

b) Interior floor seal

Polyurethane structural adhesive is used to bond and seal the joints between the bottom plate, side plate and front plate.

c) Door and frame seal

The rear door and the door frame are sealed reliably by using the universal labyrinth rubber strip and the effective control of the door gap.

d) Apply sealant to the opening and switch of the lamp in the compartment before installation.

e) Installation seal of refrigeration unit

According to the product requirements, the refrigeration unit shall install sealing ring and apply sealant at the interface with the box body. The pipes and lines of the refrigeration unit passing through the box plate shall be sealed with sealant at each passing place, and the fixed screws of the unit passing through the box plate shall also be sealed with sealant.

Box assembly process

The box assembly shall be carried out on the box assembly workbench according to the box assembly process. The box assembly shall meet the following requirements:

1) The diagonal error of the car body shall comply with js-024-2004 quality inspection requirements for main parts.

2) The box body assembly structural adhesive coated on the joint surface of each box plate is uniform, full of gaps and tightly sealed.

3) The screw connection is firm and reliable, and the screw holes on the outside of the panel are coated with box assembly structural adhesive.

4) The connection between the door frame and the car body is firm and reliable, and the connecting screws are arranged in order.

The assembly process of panel: bottom plate installation → front plate installation → right side plate installation → left side plate installation → rear door frame installation → top plate installation → rear door plate installation.

进口热压机

Only after the panel is made by hot press can it enter the next process.

Complete the need for professional equipment testing in order to be a qualified refrigerated car body.

设备一

设备二

设备三

设备四

自喷式淋雨试验台

After the above complex and professional production, a qualified refrigerator car can be delivered. During the whole production process of refrigerated car body, our food is transported by a qualified refrigerated car, which has a higher standard of safety protection.

Shandong Tuolu automobile refitting Co., Ltd. will serve you wholeheartedly!