vacuum brazing

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vacuum brazing automobile industry

Czech in 1984 from the United Kingdom to introduce small continuous vacuum brazing furnace production company Keda truck shovel on the respect of heat exchanger, annual output of more than 10 thousand. Ford automobile company began to adopt real brazing process in 1971 to produce aluminum radiator core.

In 1984, 20% of the aluminum radiators were produced in the automobile radiators, and then the technical transformation of the aluminum radiator production lines in the two factories was carried out. It was estimated that after the technical transformation, up to 3 million units could be built in 1985. The reason why Ford Motor Co has to reform the production line is that the aluminum radiator is light in weight and has good heat exchange performance. As a result, the number of aluminum radiators used in passenger cars, light trucks, and vans with Ford motors accounts for 90% to 95%.

Japan Furukawa aluminum industry company has developed a suitable for vacuum brazing of automotive heat exchanger fin for new alloy (CF Series), and has a large number of production, the CF series of new alloys in aluminum, zinc and manganese in adding 0.2 ~ 0.3% calcium alloy. It can be used as the heat sink of the heat exchanger, and the new alloy improves the corrosion resistance and service life. According to the information, the aluminum material used for automobile heat exchanger, Europe accounted for 80% to 90%, the United States accounted for 50%, Japan accounted for 15%. Therefore, the Japanese ancient river aluminum industry company launched the CF series of new aluminum alloy, will undoubtedly be the Japanese automobile heat exchanger aluminum will play a role in promoting.

Now, there are more than 20 vacuum brazing components on a car, which shows that vacuum brazing technology has great effect, good effect and wide application.

Vacuum brazing air separation

The application of vacuum brazing in air separation equipment plate fin heat exchanger used in air separation equipment is mainly used for the preparation of oxygen, nitrogen, argon and rare gas. The past is mainly used in salt bath dip brazing manufacture of plate fin heat exchanger, this technology, not only high energy consumption, complicated process, has strong corrosion, serious environmental pollution, high production cost, low product life. Vacuum brazing has many advantages over salt bath brazing, so the development trend is that vacuum brazing will replace salt soluble brazing.

vacuum brazing petrochemical industry

In the petrochemical industry, vacuum brazing is widely used to manufacture floor fin heat exchangers, such as: (1) gas recovery from petrochemical refineries; (2) separation and recovery of natural gas and coke oven gas; (3) liquefaction of natural gas and petroleum gas. The plate fin heat exchanger has the advantages of large processing capacity, good separation effect, low energy consumption and high purity. Therefore, the countries all over the world attach great importance to the development of vacuum brazing plate fin heat exchanger technology.

vacuum brazing technology in other aspects

Vacuum brazing technology for locomotive radiator, compressor intercooler, alkane, olefin and freon refrigeration system, mining oil cooler, gas turbine recuperator, large power transformer radiator, and the application of household appliances, such as vacuum brazing machine and all kinds of household air conditioning electric heater heat exchanger core.