When it comes to the temperature of refrigerated trucks , everyone should not be unfamiliar with them because refrigerated trucks use low-temperature environment to ensure that the quality of goods in transit is not degraded. What is the low-temperature environment that refrigerated trucks create? Is it just low temperature that ordinary people understand? In order to maintain the low temperature in the road before continuous transportation, the device on the refrigerator alone is definitely not enough. The refrigerated truck is also equipped with the refrigeration unit of the refrigeration unit and the polyurethane insulation compartment. The refrigeration unit provides a constant supply of "cold" important equipment for refrigerated trucks. It is generally installed at the top of the front of the container and has the appearance of an air conditioner, but it has stronger cooling capacity than the air conditioner of the same size. Refrigeration units are generally divided into two types: stand-alone units and non-independent units. The difference is that the independent units generate power for maintenance by completely using another unit. The non-independent units are fully powered by the engine's engine work to drive the group. Refrigeration work. As to whether an independent unit or a non-independent unit is used, it is generally selected according to the volume of the refrigerator body and the temperature requirements of the goods being transported. Since refrigerator cars are used exclusively for temperature-sensitive products, the guarantee of temperature is the key to refrigerated vehicles. Improper use or improper operation can result in the goods not being stored or shipped in good condition. Only the correct use and operation of a refrigerated truck can guarantee the complete delivery and preservation of the goods. 1, refrigerated trucks are not cold storage, refrigeration units are mainly insulation. Instead of reducing the temperature of the cargo, when the temperature of the outside world enters the compartment of the refrigerated truck through radiation, conduction, and convection, the cooling air blown by the refrigeration unit will carry it away, blocking the heat source from entering the cargo. 2, the goods need the necessary temperature to transport, otherwise it may be deteriorating. 3, before loading the car must be pre-cooled or preheated. 4. Frequent cleaning and refrigerating carriages keep the inside of the carriage clean and clean. The interior of the compartment must be kept clean; there should be no wrapping paper or paper scraps on the floor; debris can impede the flow of air or be inhaled by the evaporator. 5. Appropriate packaging is essential to protect the goods. For non-ventilated containers for refrigerated goods, side-ventilated containers for fresh produce. The box must be compressive.
Compact machining center is a type of machining center that is further improved and derived from the structure of a vertical machining center. With the development of society, modern people's pace of life is getting faster and their work efficiency is getting higher. In the field of metal cutting, basic processing functions such as drilling, tapping, and milling are no longer problematic on vertical Cnc Milling Machines. However, with the changing times, such requirements are gradually unable to meet the higher requirements of customers. People are looking for faster, higher precision, and more environmentally friendly processing equipment, and compact Machining Centers are born to meet these needs.
In China, this type of compact machining center is usually called a drilling tapping center. Its characteristics are compact machine structure and high production efficiency. Typically, compact machining centers have the following characteristics:
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2. The displacement speed is fast, and the machine tool can move at least 48m/min and up to 60m/min.
3. The spindle adopts a BT30 20000/24000rpm spindle, and the normal spindle speed is at least 10000rpm or above, usually 12000rpm or even higher. Therefore, the speed has also been relatively increased during drilling and tooth tapping.
4. Adopting a flying saucer type tool magazine, its characteristic is that the tool magazine is located on the spindle, which reduces the tool changing path and greatly improves the tool changing speed during tool changing. The fastest tool changing time is 1.2 seconds. Like LEYO compact machining centers generally use servo tool libraries, which improve the speed and efficiency of tool changing compared to ordinary tool libraries.
5. It is more energy-efficient and environmentally friendly. Drilling machines have a processing efficiency twice that of vertical machining centers, and the more efficient they are, the more environmentally friendly they are. Energy consumption is reduced by 70% compared to vertical machining centers.
6. It can achieve a higher degree of automation in production. If combined with the use of robots and real-time online diagnosis through the Internet, continuous production can be achieved 24 hours without human supervision, further improving production efficiency and automation.
Therefore, compact machining centers are very suitable for factories to process small and large quantities of spare parts. A factory with very high requirements for production efficiency.
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