The pressing technology for truck body panel

Our truck body panel is fully enclosed composite sandwich structure, the inside and outside surface are the FRP sheet, the thermal insulation layer is rigid polyurethane foam, it is necessary to put into embedded parts, which bonded by glass fiber mat and resin adhesive after hot pressing.The panel structure should be molded without steel structure and cold bridge,the heat preservation performance is good, and with good waterproof performance at the same time, the panel should be high intensity, light weight,it can effectively solve the puzzles of bubble, wrinkles and other technical problems.we require high production efficiency and the production of cars inside and outside surface does not need to spray paint processing.And the surface flatness error should be controlled at 0.5 mm/m or less.

The bottom structure of refrigerated truck body

The bottom of refrigerated truck body adopts integral cast-in-place FRP, it owns good heat preservation performance, high strength, the ventilation slots design facilitate air circulation of whole vehicle, and a balanced load temperature was kept there.Due to the steel frame structure embedded parts in floor wall, the structure is pretty stable. The production of bottom panel is completed, the surface of the bottom plate is adhesive resin + glass fiber to meet the requirements of food grade glass reinforced plastics (FRP), it guarantee the good preservation performance and impact strength of bottom panel.

The application scope of PU composite panel

As building energy-saving insulation materials,Polyurethane composite panels has been widely used in Europe, America, Japan and other developed countries , the penetration rate reaches 80%, but less than 10% is applied in our country.Polyurethane sandwich board as a kind of excellent energy-saving insulation materials, its excellent heat insulation, fire prevention, heat preservation performance can provide efficient solutions to solve the crisis of China's energy consumption .Polyurethane sandwich panel is widely used in large industrial plants, cold storage, garage, mobile houses, pavilion, gymnasium, shopping centers, airports, power plants, villas, hospitals, formation and high-rise office buildings and other fields, because of the excellent heat preservation performance, it is mainly used in industrial and civil roof and wall construction.

The good performance of resin for FRP sheet

Good quality FRP sheet need high quality resin.The resin our used can resist the corrosion.It is resistant to acid of middle density, alkali, various salts environment, and the usage temperature is -50℃～90℃,the highest temperature is 105. The velocity of inflaming retarding is Grade One of ASTM E-84 ,and the flame spreading index is below 25. Another kind of ORP resin type can resist to seawater, weak acid and atmospheric aging environment, the usage temperature is -50℃～60℃, and the highest temperature is 100℃. This is the economical type. Compared with the traditional steel grating, aluminum grating and wood grating, its corrosion resistance is better though its corrosion resistance is weak in all of the resin types. The velocity of inflaming retarding is Grade One of ASTM E-84, and the flame spreading index is below 25.With this kind resin, our FRP sheet can be applied to many kinds of panel or other building purpose.

The development of the commercial refrigerated equippment market

The commercial refrigerated equippment market will reach to 46.6billion dollars by 2018.The annual rising rate is 8.2%. Many factors accelerate the development of the commercial refrigerated equippment market.For example: the development of technology, the change of food consuming model, the expansion of supermarket and fast food business chain, the innovation of plant model, the worldwide export of seafood and processed food.

The importance of highway refrigeration transportation

The highway transportation monopolize southern cold chain transportation market.Many high value-added fruit and vegetable are transported in highway.The highway refrigeration transportation of perish food account for 75%.And short distance transportation almost are highway transportation. It is forecasted that highway refrigerated truck body will be required in many area. The first is the food area ,which including the aquatic product, perish food, frozen food and fruit.The second is medical and health area.To guarantee the safety of medicine, the refrigerated truck body is necessary. The third is the eletronic field, the development of eletronic industry requires more and more refrigerated truck body.