Comparison of Chengli Jinglong Process Refrigerated Truck and General Process Refrigerated Truck
When customers choose refrigerated trucks , will there be a feeling of dizziness when facing a large number of refrigerated truck manufacturers? How to choose a good refrigerated truck? Now let the manager of Fang Chengli to explain how to choose a good refrigerated truck for you.
The insulation effect of refrigerated trucks is related to the use of materials. Refrigerated trucks usually use the "sandwich" process. Polyurethane and polystyrene are commonly used as insulation materials. The overall performance of polyurethane is better than polystyrene. Many manufacturers often use it to lower prices.
Thermal insulation effect: Polyurethane is good, benzene board is poor;
Cold and heat resistance: good polyurethane, poor benzene board;
Water absorption rate / ability: low polyurethane, easy benzene board;
Service life: long polyurethane, poor styrene board;
Price: high polyurethane, low styrene board;
Polystyrene foam is very similar to polyurethane in many aspects, such as heat insulation, strength, stability, etc. The disadvantage is that the temperature range is relatively narrow, it is easy to play toxic gases in the presence of open flames, and it is easy to lose the heat preservation effect when it absorbs water. Therefore, it is a phased out product.
The disadvantages of polystyrene are brittleness, low impact strength, prone to stress cracking, poor heat resistance and resistance to boiling water. And because polyurethane contains strong polar urethane groups, adjusting the ratio of NCO / OH in the formula can produce different products of thermosetting polyurethane and thermoplastic polyurethane. According to its molecular structure, it can be divided into two types: linear and body. Due to the different cross-link density in the body structure, it can exhibit properties of hard, soft or somewhere in between, and has the characteristics of high strength, high wear resistance and solvent resistance.
So, how to distinguish between polyurethane and polystyrene? I will teach you a simple method. When you come to the factory to watch the car, there will be some leftovers in the workshop. It will be lighted with a lighter. If it does n’t burn or burns for a while, it will be polyurethane. What can continue to burn is Polystyrene.
The glass steel plate we use is not the same. There is a layer of glass fiber in the middle of our glass steel plate. 粘接是用发泡成型的聚氨酯板切割后利用树脂和玻璃纤维毡连接而成，每一个小板块之间都用毡做Z字形连接，形成一种加强筋。 The plate bonding is formed by cutting a foamed polyurethane plate and using resin and glass fiber felt to connect each small plate with a zigzag connection to form a reinforcing rib. Make the cured plate harder and bond more firmly. Not all iron, as some say.
As a person in the industry, our price is the price of 100% good materials, and we will not use inferior materials for cheaper thousands of dollars. Chengli plant also has two production lines, one production line adopts the new Jinglong process and one production line uses the old process. If you want to buy a durable, good insulation refrigerated truck, please look for Chengli new technology refrigerated truck .
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员 经理：13886888304 15272880640 Recommended factory salesperson Manager Chen : 13886888304 15272880640