Gradient Porous Tungsten Manufacturing Process

gradient porous tungsten image

Porous tungsten is widely used in power electronics, aerospace and other high temperature fields as a variety of components prepared by porous or porous matrix, such as porous cathode matrix with high current density, high temperature fluid filter, high temperature heater of rocket nozzle, etc.

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Pure Tungsten 3D Printing Additive Manufacturing Exploration

3D printing adds material image

Additional material manufacturing is a new processing technology, commonly known as 3D printing, which is different from the traditional "removal" manufacturing. It does not need the original embryo and die. It directly forms any complex shape object by adding material layer by layer according to the computer three-dimensional model data of parts.

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Secondary Sintering Process of Potassium-containing Metal Tungsten Bars

potassium containing tungsten bars image

Potassium-containing tungsten bars are raw materials for making light source materials, high-temperature heaters and high-temperature resistant components. The traditional production method is to add silicon, aluminium, potassium and other elements into tungsten oxide powder first, then reduce the tungsten oxide powder doped with these elements and wash it with hydrochloric acid and hydrofluoric acid to obtain doped tungsten powder, then doped tungsten powder. After being pressed, the strips are sintered and sintered to obtain potassium containing tungsten bars.

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Tungstate / Tungsten Oxide Heterojunction Photocatalyst

tungstate / tungsten oxide heterojunction photocatalyst image

Tungsten trioxide (WO3) is a typical n-type semiconductor material, which has broad application prospects in electrochromic devices, gas sensors and photocatalysts. Particularly in the field of photocatalysis, WO3 has a narrow band gap (2.4-2.8eV) compared with other semiconductors (such as titanium dioxide and Bi2O3), which can utilize solar energy more effectively.

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Low Grade Scheelite Tailings Recovery Method

low grade scheelite tailings recovery method image

China is a large producer of tungsten, and its reserves and output rank first in the world, but this is not worth showing off. Due to historical reasons and technical limitations, the development of tungsten resources in the early and middle stages of China has not been carried out reasonably. 

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Tungsten Carbide Ceramic Heat-resistant and Wear-resistant Composites Preparation

tungsten carbide ceramic heat-resistant and wear-resistant composites image

Tungsten carbide ceramics are widely used in metal processing, mining and other fields because of their high hardness, wear resistance, heat resistance, corrosion resistance and other excellent properties. However, tungsten carbide ceramics have high manufacturing cost and brittleness, and are not suitable for wearable parts with high impact force.

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U.S. Retreats "Zhongdao Treaty", Real Intention Maybe Is to Limit China's Medium-range Missiles

tungsten alloy warhead picture

Since Trump announced on the 20th of this month that the United States will withdraw from the "Medium Guide Treaty" signed by Russia, foreign diplomatic agencies and the media have taken action to try to figure out what the real intention behind the "retrefation" of the United States is. Although Trump claims that the United States would want to withdraw from the landmark "middle-range nuclear power treaty" because of Russia's long-standing violation of the treaty. In this regard, the Russian side insisted that the US accusation has no evidence, and it also refers to the US party's breach of contract. In addition, some Russian media analysts believe that the US is determined to withdraw, and the real intention is to limit China's medium-range missiles.

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Molybdenum Bismuth Alloy Wire is A Mainstream Wire for Wire Cutting

molybdenum lanthanum alloy wire for WEDM picture

Is the bismuth molybdenum bismuth alloy wire the main wire cutting electrode wire? A group of research materials will tell you later. We start with the “six hopes” of the wire cutting industry. There are so many expectations in the wire-cutting boss: one is looking forward to the wind; the second is not changing the liquid; the three expecting the meter does not turn; the fourth is expecting the rent to be halved; the five hope that the sun does not fall; the six-hundred machine turns over 10,000! However, the wire-cutting master and the little master said after hearing that they did not say the "five expectations" in the back. We first realized the "first hope", that is, when the "electrode wire is not easily broken", other.

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China's Large-Scale Radial Precision Forging Machine Technology Has Made A Breakthrough, The Power Of 99 Tank Guns Will Be Greatly Improved

tungsten alloy armor piercing bullet picture

Recently, China's newly developed TMH20/15MN large radial precision forging machine was successfully tested at one heat load, and the first qualified high-end bar was forged. The successful test of the radial precision forging machine marks that the core manufacturing equipment of high-end pipe in China will no longer be easily "card neck"! However, this also means that China has successfully broken one of the technical barriers that have long been completely monopolized by foreign countries - large radial precision forging machine preparation technology!

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Secondary Sintering Process of Potassium Containing Metal Tungsten Bars

potassium containing tungsten bars image

potassium containing tungsten bars are raw materials for making light source materials, high-temperature heaters and high-temperature resistant components. The traditional production method is to add silicon, aluminium, potassium and other elements into tungsten oxide powder first, then reduce the tungsten oxide powder doped with these elements and wash it with hydrochloric acid and hydrofluoric acid to obtain doped tungsten powder, then doped tungsten powder. After being pressed, the strips are sintered and sintered to obtain potassium containing tungsten bars.

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