Because copper products have good comprehensive properties, it can be seen everywhere.
Air conditioners and refrigerators
The temperature control of air conditioners and refrigerators is mainly achieved through the evaporation and condensation of heat exchanger copper tubes. The size and heat transfer performance of the heat exchange and heat transfer tubes largely determine the efficiency and miniaturization of the entire air conditioner and refrigeration device. In these machines, special-shaped copper tubes with high thermal conductivity are used. Taking advantage of the good processing properties of steel, radiating pipes with inner grooves and high fins have recently been developed and produced, which are used in the manufacture of heat exchangers in air conditioners, refrigerators, chemical and waste heat sinks, etc. The total heat transfer coefficient of the exchanger is increased to 2 to 3 times that of ordinary tubes, and 1.2 to 1.3 times that of ordinary low-finned tubes. It has been used in China, which can save 40% of copper and reduce the volume of the heat exchanger by 1. /3 or more.
clock
Clocks, timepieces and devices with clockwork mechanisms are currently produced in which most of the working parts are made of “horological brass”. The alloy contains 1.5-2% lead, which has good processing properties and is suitable for mass production. For example, gears are cut from long extruded brass rods, flat wheels are punched from strips of corresponding thickness, brass or other copper alloys are used to make engraved clock faces and screws and joints, etc. A large number of inexpensive watches are made of gunmetal (tin-zinc bronze), or plated with nickel silver (white copper). Some famous clocks are made of steel and copper alloys. The British “Big Ben” uses a solid gunmetal rod for the hour hand and a 14-foot-long copper tube for the minute hand.
winemaking
Copper plays an important role in the world’s beer brewing. Uchimura where copper is often used for malting barrels and fermenters. In some famous breweries there are more than ten such vats with a capacity of more than 20,000 gallons. In the fermentation tank, in order to cool down, the steel pipe is often cooled by water. The steel pipe is also used to pass water and steam to heat the beer, and the steel pipe is used to transport the liquor.
Steel stills are often used when distilling whisky and other spirits. Whiskey ale is distilled twice, using two large copper stills.
Post time: May-24-2022