molybdenum, rhenium) used as a heat resistant alloy materials.

In aviation and rocket technology, and requires that the machine parts, engines and some instruments of other sectors with high heat intensity, tungsten and other metals to melt (tantalum, niobium, molybdenum, rhenium) used as a heat resistant alloy materials. In aviation and rocket technology, and requires that the machine parts, engines and some instruments of other sectors with high heat intensity, tungsten and other metals to melt (tantalum, niobium, molybdenum, rhenium) used as a heat resistant alloy materials. Tungsten plate, molybdenum plate, tungsten rod, molybdenum rod, tungsten tube, molybdenum tube, tungsten crucible, Molybdenum tube crucible and the high proportion of the contact material manufactured by powder metallurgy alloys tungsten - copper (10% to 40% copper) and tungsten - silver alloy, copper and silver both good electrical conductivity, thermal conductivity and wear resistance of tungsten. Therefore, it becomes manufacture knife switch, circuit breakers, spot welding electrodes and other working parts are very efficient contact material. Content of 90% to 95% tungsten, 1% to 6% nickel, 1% to 4% of a high proportion of copper alloy, and iron and copper (~ 5%) of the alloys used in the manufacture of the rotor gyroscope , aircraft, control the rudder counterweight, radioisotopes such as radiation shields and baskets. Tungsten plate, molybdenum plates, tungsten rods, molybdenum rods, tungsten tube, molybdenum tube, tungsten crucible, molybdenum crucible electric vacuum tungsten filament lighting materials tungsten, tungsten bands and various forging components for the tube production, radio electronics and X-ray technology. Incandescent tungsten filament is the best material and helical filaments. High temperature (2200 ~ 2500 ℃) ensure a high luminous efficiency, and small wire evaporation rate guarantee long life. Tungsten oscillating tube for manufacturing an electronic direct hot cathode and a gate, a cathode and a high voltage rectifier and a variety of electronic instruments indirectly heated cathode heaters. Do X-ray tube with a tungsten and cathode gas discharge tube and a cathode, and the radio equipment and atomic hydrogen welding torch electrode contacts. Tungsten and tungsten rod as a high temperature furnace (up to 3000 ℃) is a heater. Tungsten heater in a hydrogen atmosphere, an inert atmosphere or in vacuum work. Tungsten plate, molybdenum plate, tungsten rod, molybdenum rod, tungsten tube, molybdenum tube, tungsten crucible, molybdenum crucible