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Tungsten Concentrate Producing Tungsten Trioxide

Traditionally, the tungsten concentrate is mainly smelted by classical technology, extraction process and ion exchange process. Because sodium hydroxide and hydrochloric acid are used in these proc...

Production of Ammonium Paratungstate by Zero Pollution

In the prior art, the preparation of ammonium paratungstate industrial process from tungsten mineral raw materials by caustic soda or soda decomposition to obtain crude sodium tungstate solution; p...

Warm Compaction： Green Compact Strength

The green compact strength of the tungsten carbide billet is an important parameter of the pressed shape, which can be enhanced by two ways during warm compaction. The first way is to increase the ...

The NIB and SmCo were developed as early as the 1970s

The strength of the magnetic fields is measured with two units, the Gauss and Tesla. Depending on the application, the magnet can be configured in many ways. The astronauts used neodymium to mainta...

Tungsten Trioxide Thin Films Preparation by Impregnation and Drawing Method

At present, the commonly used preparation methods of tungsten trioxide thin films are atomic layer deposition, chemical vapor deposition and electrodeposition. However, the tungsten trioxide thin f...

Tungsen Trioxide Electrochromic Nanofilm

Electrochromism refers to the phenomenon that displayed by some materials of reversibly changing color under the action of an applied electric field. Electrochromic device only needs a small voltag...

Brief Introduction of The Tungsten Carbide Drawing Die (2)

Drawing method is mainly used in copper pipe production at present. In the process of drawing, due to the high temperature and large friction, high temperature resistance and high hardness of the d...

Joint Pressure Cooking Decomposition of Tungsten Slag to Improve Tungsten Recycle

The existing pressure cooker method to be abandoned tungsten slag alkaline secondary pressure cooker, tungsten extraction of tungsten in depth, and then the resulting low-tungsten high lye for pres...

The traffic signals have become so important

The most widely used traffic signals are speed limit signs, stop signs; danger signs lit roadway signs, etc. As matter of protection, the traffic and road signals must be followed strictly. So, wha...

Removal of Chromium from Tungsten Waste

Recovering tungsten from tungsten waste has become an important measure to alleviate the shortage of raw materials. At present, the main ways to treat tungsten waste at home and abroad include mech...