Comparison of Cheng Lijinglong Process and Ordinary Process When customers choose their refrigerated trucks, will they feel a sense of faintness in the face of a large number of refrigerated truck manufacturers? How to choose a good refrigerator? Let's let the manager of Cheng Li Special Automobile explain to you how to pick a good refrigerator truck. Insulation effect   : Good polyurethane, poor benzene plate; Polystyrene foam is very similar to polyurethane in many aspects, such as thermal insulation, strength, stability, etc. The disadvantage is that the temperature range is relatively narrow, easy to play toxic gases in the event of a fire, and water can easily lose its thermal insulation effect. Therefore, it is a phase-out product.     The disadvantages of ordinary polystyrene are brittleness, low impact strength, stress cracking, poor heat resistance, and intolerance to boiling water. Since the polyurethane containing strong polar urethane groups, NCO / OH ratio adjustment formulations can be prepared by a thermoplastic polyurethane and thermoset polyurethane of different products. According to its molecular structure can be divided into two types of line and body. Because of the different cross-link density in the body structure, it can exhibit hard, soft or intermediate properties, with high strength, high wear resistance and solvent resistance. So how do you distinguish between polyurethane and polystyrene? I'm going to teach you a simple way. When you come to the factory to look at the car, there will be some scrap in the workshop. With a lighter, you can't burn it or burn it for a while. It's polyurethane, which can burn continuously. Polystyrene. The adhesive is a urethane foam molding sheet after cutting using resin and glass fiber mats connected to each other, are made Z-shaped connection between each of the small plates with a felt to form a bead. Makes the hardened plate more rigid and more securely bonded. It's not as iron as some say. Sales substation:     Recommended factory salesman manager / 0722-3260588 DEK Spare Parts are commonly used and replaceable machine parts design for DEK Solder Paste Printing machines. These parts include squeegee holders, rubber squeegees, metal blades and other commonly replaced machine parts. Our company supplies the best quality DEK machine parts. For information and inquiries about DEK Printer Parts, please visit our official website or contact us. We will be glad to provide answers to any of your inquiry. DEK Spare Parts,DEK Printer Gas Spring,DEK Printer Board Clamp,DEK machine Spare Parts,DEK Printer Spare Parts ShenZhen KDW Electronics Co.,Ltd , http://www.smtsplicetape.com
Refrigerated truck insulation effect is related to the use of materials, refrigerated trucks usually use the "sandwich" process, commonly used insulation materials are polyurethane and polystyrene, the overall performance of polyurethane is better than polystyrene, but because of the lower cost of polystyrene board, now Many manufacturers often use it to lower prices.
Cold and heat resistance: Good polyurethane, poor benzene board;
Water Absorption / Sex: Low Polyurethane, Easy Benzene Plate;
Service life   : Long polyurethane, poor benzene plate;
price     grid   : Polyurethane high, benzene plate low; 
The glass plate we use is not the same, Â There is a layer of glass fiber in the middle of our glass plate. Plate
As a person in the industry, our price is the price of a hundred percent of good materials, and we will not use inferior materials for a few thousand dollars. There are also two production lines in the Chengli factory. One production line adopts the new Jinglong process and one production line adopts the old process. If you want to buy a durable, refrigerated truck with good insulation effect, please look for Cheng Lixin Craft Refrigerator.