Tungsten carbide rotary file is made of heat-treated tungsten carbide with characteristics of high finish, high accuracy, high efficiency and long working life to process a variety of metal and non-metal, such as cast iron, cast steel, bearing steel, high carbon steel, chrome-nickel alloy, bronze, brass, and ceramic tile, marble, jade, bone, etc. And its processing hardness would up to HRA 89-92.5.

Tungsten carbide drill is also known as tungsten carbide brill bit that has excellent characteristics such as high hardness, high wear resistance, high toughness, high strength, and long service life. The specially designed edge of the drill bit is sharp and durable to suppress chatter during processing and improve the quality of the processed surface. Also, it reduces cutting resistance and improves working efficiency to obtain good surface finish.

Tungsten carbide core drill has characteristics of high drilling efficiency, low cost and labor saving, and is mainly used for drilling of steel components in rail transportation, bridges, ships, machinery manufacturing, aerospace and other fields. Well, what are the installation precautions of tungsten carbide core drill bits?

Tungsten carbide hollow drill, which is called annular cutter when it is used in metal, is a drill specifically designed to remove a cylinder of material, much like a hole saw. Tungsten carbide hollow drill bits are used for many applications, either where the core needs to be preserved, or where drilling can be done more rapidly since much less material needs to be removed than with a standard bit.

Tungsten carbide core drill can be a cost effective means of drilling through softer unconsolidated formations. And such a core drill is applicable to hole cutting and process of annular groove on various magnetic drills and press. Tungsten carbide does not possess the hardness of diamond, while it is relatively cheap compared with diamond drill. It cuts effectively at low r.p.m. (revolution per minute) and low weight on bit.

Mask machine is a machine used for automatic production of multi-layer flat masks such as N95 masks and surgical masks. Tungsten carbide drill that plays the role of drilling on the mask machine is made of fine-grained cemented carbide, which has high strength, good toughness, high temperature resistance, good corrosion resistance, high hardness, good wear resistance, smooth chip removal, and small calorific value for drilling.

WO3 nanopowder is an n-type semiconductor with wide extending applications. For example, nano WO3 is widely applied to produce functional ceramic. And the prepared functional ceramics show good nonlinear electrical properties characterized by low voltage and small current. Some experts have used nano WO3 and CeO2 powders to prepare CeO2 doped WO3 ceramics to study the effect of initial powder nanometerization on ceramic properties.

WO3 hollow-sphere, as a typical n-type semiconductor, has good sensitivity to alcohol, acetone, CS2, and other organic gases, so it is regarded as the most important sensing material for fabricating highly sensitive gas sensor. Some experts have prepared WO3 hollow spheres in solution phase by the controlled hydrolysis of WCl6 using novel carbon microspheres as the templates.

WO3, or tungsten trioxide, is a functional material with a wide range of applications. Tungsten trioxide has been systematically studied in areas such as electrochromism, detection of toxic gas, and photochemical catalysis.

Nanoblock WO3 is related to the concept of electrochromism. More precisely, Nanoblock WO3 has an electrochromic effect, which can change color under the action of an external electric field. According to the experts, the reason why nano WO3 has an electrochromic effect is due to the surface effect of the nanomaterials, which makes the oxygen ions on the surface of WO3 grains have high activity and can migrate in the sample, and tungsten ions can be combined or separated with electrons under the action of an external electric field, so that the sample changes color with external voltage.