The refrigerator temperature control knob generally has 0, 1, 2, 3, 4, 5, 6, and 7 gears. The higher the number, the lower the temperature in the freezer compartment. Generally, we put it in the third grade in the spring and autumn. It depends on your requirements. Can the freezer reach below 18 degrees? In order to achieve the purpose of food preservation and power saving, we can hit 1st or 2nd gear in the summer and 4th or 5th in the winter.
Some people may ask, the temperature in winter is low, but the temperature is set low (the temperature controller is large), the summer temperature is high, but the temperature is set high (the temperature controller is small), is it reversed? In fact, many people have this kind of misunderstanding. They think that the temperature in the winter can set the temperature of the refrigerator to a high point, and the temperature in the summer should be set lower.
Because the temperature of the freezer compartment is controlled by the temperature in the storage room, see your temperature control knob is in the storage room. The temperature in the storage room is generally 4-8 degrees. In the winter, the indoor temperature is close to this temperature. If the thermostat knob is still 3 or less, the refrigerator compressor will rarely start, although the temperature in the storage room Can meet the requirements, but the temperature of the freezer can not reach below minus 18 degrees, the food is easy to deteriorate, and the food is thawed and dissolved in severe cases. In the summer, the temperature is relatively high. If the thermostat knob is still at 3 or greater than 3, the compressor storage room is frequently started in order to meet the temperature requirement. Although the temperature of the freezer compartment is lower than minus 18 degrees, it causes The waste of electrical energy shortens the service life of the refrigerator, which is what we do not want. So properly adjusting the temperature controller knob of the refrigerator can make us both fresh and energy-saving.
Copper smelting methods can be divided into two categories: pyrometallurgy and hydrometallurgy. More than 85% of the world's refined copper output is recovered from pyrophyllite concentrates and recycled copper by pyrometallurgical process, and the refined copper produced by hydrometallurgy only accounts for about 15%.
In China, copper metal is extracted from copper concentrates mainly by the pyrometallurgical method. The more advanced one is flash smelting, whose output accounts for over 30% of the total copper produced in the country. Due to low energy consumption, large-scale, can effectively control the advantages of environmental pollution. This smelting technology is being developed in the copper industry. Flash smelting furnace according to different working principle can be divided into two types: Outokumpu flash melting, InCo flash melting. The following describes Outokumpu smelting process.
Machinery Manufacturing Copper
Machinery Manufacturing Copper,Copper Wire Manufacturing Machine,Electrical Cable Manufacturing Machine,Copper Manufacturing Machinery
Ningxia Tongji International Trade Co.,Ltd. , http://www.tongjiinternational.com