In the past few years, many users of ammonium paratungstate (APT) have a more strict quality requirement in its quality, including particle-size and apparent density, crystal shape, etc. Thus, a new preparation of APT with coarse grain that meets the requirements of industry has been introduced.

Do you know how to prepare tungsten needle efficiently? The experts have proposed a method for preparing tungsten needles with the advantages of high degree of automation, good repeatability and high efficiency.

The quality of tungsten needle is directly related to the detection capability of the scanning electron microscope (STM). The size, shape and chemical identity of the tungsten tip affect not only the resolution and shape of the STM image, but also the electronic state of the measurement. Therefore, the preparation of tungsten tip is particularly important. And it had better to obtain a tungsten tip with a specific radius of curvature.

It has been reported that only nano tungsten needle having sharp tip and single atom at the apex can provide stable and reliable atomically resolved imaging for applications of scanning tunneling microscopy (STM). Well, do you know how to prepare such a nano tungsten needle? Differing from the traditional methods, the experts have proposed a new method for preparing nano tungsten needles:

Tungsten needle is widely used as a probe for applications of scanning tunneling microscope (STM) - an instrument for imaging surfaces at the atomic level that is recognized as one of the world's top ten scientific and technological achievements in the 1980s.

As a telescopic ablation electrode, tungsten needle for minimally invasive surgery has the characteristics of super sharp and high melting point, so that it can quickly cut the skin and various soft tissues, with less bleeding and thermal damage. Therefore, it is more conducive to postoperative wound healing for patients. Such a telescopic ablation electrode produces very little smoke when working at extremely low power, allowing doctors to have a good surgical field of vision while reducing physical harm from inhaling smoke.

Tungsten needle can be used as the conventional ablation electrode for applications of minimally invasive surgery is made of tungsten material with ultra-high melting point. Its tip is super sharp and can withstand high temperature above 3400 °C. The classic design of the tungsten needle with a bare 3 mm tip effectively avoids accidental thermal damage to the surrounding tissue, and the incision is more minimally invasive and more prone to clotting, thereby it is more conducive to the patient's postoperative wound healing.

Tungsten needle is an environmentally friendly and non-toxic consumable on medical high-frequency electric knife. The high-frequency current generated by the electric knife is used to cut and coagulate human tissues. Specifically, the high-frequency current forms high temperature, thermal energy, and discharge at the tip of the tungsten needle of the electric knife, which quickly dehydrates, decomposes, evaporates, and coagulates the blood of the contacted tissue to achieve the function of decomposing the tissue and clotting, thereby achieving the purpose of cutting and stopping bleeding. This tungsten needle electrode high-frequency electric knife is suitable for various types of surgical operating rooms such as orthopedics, pediatrics, cardiothoracic surgery, neurosurgery, and urology.

Tungsten needle is a consumable of high frequency electric knife. Tungsten needle has an ultra-sharp needle point for precise cutting. Also, it has high melting point to withstand high temperatures above 3000 °C. So, such an electric knife is suitable for plastic surgery, neurosurgery, oral surgery, pediatric surgery, cardiothoracic surgery, and many other minimally invasive surgery. And the patients will recover relatively quickly as surgical wound is small.

How to prepare tungsten needle by electrolytic method? The following materials are needed: