Application of tools industry brazing furnace
Vacuum tools industry brazing and drill bit is an example of a small bit, widely used in metallurgy, geology, coal, water conservancy, railway construction and military career. According to the statistics in 1978, the consumption of small bits of about 10 thousand, and now the amount is bigger, has played an important role in national economic construction.
In 1978 the Northwest Institute of mining and metallurgy began development of tools industry brazing furnace, technical appraisal in 1980 by the Ministry of metallurgical industry, 80s has an annual output of one hundred thousand small bits of the production line, product supply hundreds of mines. The production of the bit has in Damiao, Nanjing Meishan Eastern tungsten, iron ore, copper, copper in Hongtoushan copper mine to dozens of tests. The different types of rock drilling, endured the hard granite, difficult drilling and hard abrasive hornfelsed strong massive magnetite skarn test clip. Cross bit diameter of 42mm and the same type of drill bit Swedish comparative test drilling of granite in the field, the average life of more than 100m, reached Sweden bit level, according to the survey, the service life is increased by 1 to 1.5 times, has brought significant economic benefits to the user.