Metal manganese is easily oxidized in the air and forms the oxide film on its surface. It will affect its physical properties, chemical properties and performance. When it is used in powder state, metal powder has a large surface area, and its oxidation is intensified. According to technical conditions, some provisions declare that the manganese content should not be less than 99.00% in manganese powder. Therefore it is necessary to have cooled determination of manganese content in manganese ...

Developments of technologies for ultra-fine nickel powder have the three main points of preparation, properties and applications of ultrafine nickel powder. The preparation technology studies the preparation principle, preparation methods and preparation equipment. It aims at preparing a superior ultra-fine powder with characteristics of narrower particle size, more uniform distribution, better dispersion, and surface performances. Equipment has large production capacity, high output, low ene...

The latest China Jilin metallurgical industry development plan proposed the development priorities and layout. The carbonyl iron powder, nickel powder, and molybdenum industry are included in key content. Carbonyl iron powder has the characteristics of high purity, ultra-fine and active. It is produced by the carbonylation metallurgical techniques and it can be widely used in metallurgy, electronics, military, mechanical, pharmaceutical, chemical, food and other fields. The project is expecte...

Due to the high volume calorific value, boron becomes the preferred high-energy component additives. In order to do more accurate measurements, the oxygen bomb calorimeter can be used. The SQ-2 can be used as a combustion accelerant. The quality, shape, and the oxygen bomb pressure on the boron powder can be studied. The test finds the gas temperature is the key parameters that affect the combustion efficiency of boron powder. Increasing the limit temperature is an effective means to improve ...

New materials refer to those emerging or developing materials with traditional materials’ excellent performance. It can be seen from the history of human technological development that the modern world has experienced two industrial revolutions which are based on the discovery and application of new materials. Since the middle of last century, electronic technology especially the invention and application of microelectronic technology is representative of the second world revolution. Silico...

Metal powder coating is a new type of 100% solid powder coating without solvent. It has two categories: the thermoplastic powder coatings and thermoset powder coating. Coating is made of special resin, fillers, curing agents and other additives. It forms with a certain proportion of mixed and by hot extrusion and crushing process of sifting. At room temperature, it is stable for storage. With electrostatic spray or fluidized bed dipping and then the baking heat of melting and solidification, ...

As early as the 1920s, people had the actual use of refractory concrete. But it was not until the late 1950s that microsilica was used in products. The standard combination of low-cement pouring compound oxidation system is composed by the calcium aluminate cement, silicon powder and alumina calcined poured dispersant with fine grinding. At the base of bonding system, people can conduct a variety of improvements and increasing. Because particles of silica powder in the combination system is u...

As a main raw material in metal powder manufacturing industry, China's annual demand for steel is very large. The sulfur content of the steel determines the quality of steel, which is due to the characteristics of sulfur. If the sulfur content in the steel is too much, it will lead to the high brittle of steel thus reducing the mechanical properties of steel. Therefore, one process of forging steel is iron metal pretreatment. The sulfur containing in the molten iron goes into a minimum. Then ...

Powder metallurgy is craft technology which uses metal powder as raw material for sinter forming and manufactures metallic friction material and the products. In powder metallurgy production, materials and parts have futures of high quality, low cost, energy efficiency and saving materials. The product structure of powder metallurgy materials can be divided into the powder metallurgy machine parts and ferrite magnetic material. They include eternal life magnet magnetic materials, soft magnet ...

The silicon dioxide powder is waste items collected from the ferrosilicon smelting process. The smelting silicon dust derived from the dry cleaning equipment with high silica content, high activity, high performance and versatile. The silica fume is tested as a reinforcing agent in tire formulations. The silica fume is used in the tire tread and carcass rubber formulations for semi-finished products and finished application. The results show that the silicon dioxide as an inorganic filler has...

Because metal powder coating has excellent performance, its market share is steadily improving. As the requirement of increasingly stringent environmental laws on the atmosphere volatile organic compounds content, the coating industry finds ways to improve the coating technology and reduces environmental pollution. After long-term experiments and tests, they finally find the silicon powder coating technology which is able to achieve the best coating.

Metal powder coating does not use organi...

China's iron and steel industry has the rapid development in recent years. Crude steel production reached 5.65 million tons in 2009. There are very rich iron secondary resources. The annually production is about 1000 tons. How to use these resources reasonable and effective by powder metallurgy technology and realize the recycling of iron resources become major issues in the current recycling economy.

The iron is basic raw material in powder metallurgy industry. The world attaches great imp...

Manganese is a gray metal which is hard and brittle. Common manganese compounds are manganese dioxide and manganese oxide, manganese chloride, manganese sulfate, calcium chromate, manganese compounds and calcium potassium acetate. Manganese and manganese fumes dust enter into the body through the respiratory tract,, which  cause boron powder chronic poisoning. Acute manganese poisoning is rare.

After inhaling a large number of neonatal manganese fumes in poorly ventilated workplace fever: di...

Recently, prices have been increasing in silica fume market. resource of high-quality silica fume (silica content is more than 90%) constraints and the international market has continuous expanding demand for micro-silica fume. According to the different origin of silica fume and different purposes, the prices of silicon powder also have some differences. In general, the main producing area of ​​the silica fume is northwest. The quality is relatively poor with relatively large scale. Qual...

Contemporary industrial production and manufacturing technology have profound changes. These changes have a common feature, which is the application of the original foundation material. The new ultrafine powder materials become upstream raw materials for most of the industrial manufacturing. It almost contains all production and manufacturing sectors of light and heavy industry. Currently, production processing and application level of ultrafine powder has become a measure sign for national s...

As we all know, the trend of economic globalization is becoming more and more obvious. The economy of every country is integrated into the developing tide of economic globalization. Economic globalization makes the global capital and resources free circulating on a global scale. But meanwhile it has brought greater risks for national economy. Because economies of the countries are indeed affected by the whole situation.

The financial crisis of 2008 is a global financial crisis from U.S. subp...