Ferro Tungsten FeW80% ABC

Tungsten inç çelik% 2c in ekleme karbonize için form karbürler, parça nın nın çözüner demir için form a katı çözelti. Tungsten sahip az etkisi üzerinde artıyor sertleşebilirlik nın onun ana kullanımı çelik için için sağlamlaştırmak tavlama kararlılık, kırmızı sertlik ve termal mukavemet of çelik, ve artış bir aşınma direnç nedeniyle ile oluşumu nın özel karbürleri, yani o o olan o olan çelik, Yüksek hız çelik% 2C sıcak dövme Kalıp Çelik ve benzeri .

Tungsten resources China's tungsten reserves and production rank first in the world. Canada, the former Soviet Union, the United States, Australia, South Korea and other production of tungsten concentrate. Tungsten ore in China is mainly concentrated in Hunan, Jiangxi, Guangxi, Fujian and Guangdong. And Jiangxi has the largest output. Tungsten ore is often associated with one or more of tin, molybdenum, bismuth, copper, lead, zinc, beryllium, lithium, niobium, tantalum, etc. The abundance of tungsten in the Earth is (1 ~ 1.3)× 10-4%. The mined raw ore contains 0.3% ~ 1.2% wO3. It is necessary to obtain 60% ~ 70% tungsten concentrate containing WO3 and recover associated metals through beneficiation, and remove harmful impurities. The main tungsten ores are tungstellite [FeWO3, containing Mn< 3.6%], ferromanganese [(Fe, Mn)wO3, containing Mn3.6% ~ 14.5%], tungstellite [Mn-WO3, containing Mn 14.5% ~ 18.1%] and calcium tungstate (CaWO4). The first three are called wolframite, and the latter is called scheelite.

△F of wO3 reduction reaction with carbon, silicon and aluminum for tungsten oxide reduction. A T relationship is shown in Figure 2. The production of w2C by carbon reduction is slightly preferred than that of w, but the difference is not large, so the use of carbon as a reducing agent can produce tungsten iron with lower carbon content. The reduction of wO3 with silicon and aluminum is relatively complete, and the reduction rate is higher. When carbon is reduced to wolframite, wO3 is reduced earlier, and the reduction temperature is low, and the reduction of FeO is similar to wO3, which is favorable for the formation of tungsten iron. The temperature of carbon reduction of MnO is high, which can be used to inhibit the reduction of MnO. wO3 reduction temperature is low, but the melting point of tungsten is high, so the slag temperature is low and the alloy temperature is high. Tungsten iron is produced by electric furnace lumping method with low voltage and high current power supply system.

Tungsten is a silver-gray metal. The atomic weight is 183.85. Electronic structure 4f145d46s2. Density (20 degree )19.3g/cm3. Melting point 3400 degree . Boiling point 5555 degree . Tungsten forms a solid solution with iron and two intermetallic compounds, Fe2W and Fe3W2 or Fe7W6, but both are unstable at high temperatures. The melting temperature of W75%-85% tungsten iron is higher than 2500 degree , so it can not be discharged from the furnace, and can only be produced by the accumulation method or iron extraction method. The density of industrial tungsten iron is about 15.3g/cm.

FERRO TUNGSTEN W 70% 25% 2c 75% 25% 2c % 80% 25

1. Ne ne sizin ödeme şartlar?

2. Ne nedir sizin kurşun zaman?
Biz genellikle düzenler teslimat içinde 7-15 gün.

3. Ne hakkında paketleme% 3f
Genellikle biz sağlamak 25 kg/bag veya karton paketleme. Of tabii ki, eğer siz özel gereksinimler için onlar, biz yapacağız onları görece ile sizin sürümünüz.

4. Nasıl etkili olduğunu o ürün?
Göre ile ürün siz sipariş edilen.

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