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Tungsten stream mouth is a combination of tungsten matrix and iridium tube. Its surface is smooth without burr, crack, fold, peeling, hole and other defects. Tungsten stream mouth is mainly used as a high-temperature vessel for rare earth metal smelting, induction furnace heating element, quartz glass melting and other industries. The important indicator to indicate the service life of tungsten stream mouth is the bonding strength between tungsten matrix and iridium tube. The higher the bonding strength is, the better…

Tungsten nozzle, which can be made of pure tungsten, tungsten alloy or tungsten carbide, is a very important part in many kinds of equipment such as oil injection, sand blasting, and spraying, etc. And therefore, it can be used in many industries such as automobile industry, electroplating industry, and surface treatment industry, etc. Pure tungsten nozzle, tungsten alloy nozzle and tungsten carbide nozzle are different from each other in prosperities, such density, the density of pure tungsten nozzle is about…

Tungsten nut is a type of fastener with a threaded hole. And it is almost always used in conjunction with a mating bolt to fasten multiple parts together. In general, the nut and bolt are made of the same material. In other words, the tungsten nut is matched with tungsten bolt. The two partners are kept together by a combination of their threads’ friction (with slight elastic deformation), a slight stretching of the bolt, and compression of the parts to…

Tungsten bolt, the combination of the head and threaded rod, is a form of threaded fastener with an external male thread. Usually, it is used with tungsten nut. Tungsten bolt has high temperature resistance so that it is a very important bolt for high temperature furnace, sintering furnace and other high-temperature environments. It has different standards, such as American, British, and so on. The choosing of the standard should be in accordance with their match machines. Tungsten bolt is widely…

Tungsten cathode may be divided into pure tungsten cathode, potassium tungsten cathode, tungsten-tungsten oxide cathode, WC-ThO2 cathode, and multiple composite rare earth oxide cathode, etc. Pure tungsten cathode does not add any oxide with low thermal electron emission efficiency so that it is little used in vacuum devices. The producing process of this type of cathode material is simple, so, it cost less. While the arc starting performance and ablation resistance performance of the tungsten cathode are relatively poor. Therefore,…

Tungsten anode has the advantages of high melting point and excellent electron emission performance so that it can be used as the electrode material in arc lamp, such as anode of xenon lamp for movie projection. Initially, the effect of tungsten anode in xenon lamp was not idea with short service life. After using a period of time, it began to darken and its brightness was greatly reduced. This was because the processing of tungsten anode at that time was…