Titanium Zirconium Molybdenum Cube

Titanium zirconium molybdenum cube is kind of hard and tough metal which has silver-grey or gray gloss surface. TZM cubes have lots of advantages such as high strength, high toughness, high temperature resistance and corrosion resistance which are widely used as semiconductor components, holder, lead frame and high temperature furnace exothermic material and so on. On the other hand, at present, TZM cube and molybdenum rod are usually used for trim the grinding wheel which are the best raw materials for trim the grinding wheel.

Although, TZM cube and molybdenum rod are all can trim the grinding wheel, but the cubes are more suit for trim large grinding wheel which usually called the millwrights. And molybdenum rods are more suit for small grinding wheel. Because using TZM cube to trim can get better result than using other material, what’s more, the high quality and efficiency of TZM cube can improve the production efficiency and quality.

Chinatungsten Online not only produce TZM cube with various size, we also produce molybdenum cube, TZM sheet, TZM plate, TZM tube and other related products. There are Impurity element content table.

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Fine-grained Molybdenum Copper Alloy Production

Molybdenum Copper is kind of a false alloy which is make of two immiscible metals molybdenum and copper, having many good performance , such as high electrical and thermal conductivity, low and adjustable thermal expansion coefficient, high temperature resistance, corrosion resistance, high strength and so on. It is widely used in electrical electronics, instrumentation, military, aerospace and other fields, primarily as a vacuum contact, conductive cooling components, instrumentation components, high temperature components of missile or rockets, high-temperature furnace cooled electrode tip, EDM electrodes be used in these fields. It has broad application prospects.

However, due to molybdenum and copper is immiscible, using conventional preparation process it is difficult to meet the higher requirements of new applications area. Through experiments using sol- spray drying - calcining - Hydrogen reduction method can produce good performance fine-grained molybdenum copper alloy and to explore new application areas of molybdenum-copper alloy provides a prerequisite.

Fine-grained molybdenum copper alloy production processes are as follows:

1.Using ammonium paramolybdate (NH4) 6Mo7O24·4H2O and copper nitrate Cu (NO3)· 3H2O as raw material to make up sol by molybdenum 70%, copper 30% (mass fraction) ratio formulation.

2. The sol after spray dried to obtain a composite salt precursor powder.

3. Precursor powder after 450℃sintered, processing hydrogen reduction can obtain ultrafine molybdenum-copper composite powder.

4. The powder was pressed under 400MPa pressure into the sample blanks. And then pre-sintered the blanks at 850 ℃, after sintered and heat preservation can obtain molybdenum-copper alloy.

Experimental results show that the sintering temperature during the preparation, the time and the oxygen content of the powder has a great influence on the properties of the molybdenum copper alloy. Sintered at 1050 ~ 1200 ℃, the material can be quickly densification; heat preservation  for 60 minutes after sintering at 1050 ℃, the relative density of the alloy can reach more than 90%. And the size of grain is fine, fibrous tissue distribution, the tensile strength can reach 755MPa, elongation of 6.41%.

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Brief Introduction To Molybdenum Electrode

Molybdenum electrode is made through isostatic pressing and can be forged to various specifications after undergoing sintering and shaping in medium frequency furnaces.

Molybdenum (Mo) is commonly used as back contacts for Cu(In,Ga)Se2 (CIGS) thin film solar cells because it has the good  electrical properties of an ohmic contact and is an inert, mechanically durable substrate during the absorber film growth. In general, Mo is deposited by dc sputtering onto soda-lime glass substrates. The electrical and the mechanical properties of sputtered refractory metal films are known to vary with the working gas pressure. CIGS thin film growth occurs at temperatures > 500  and at these temperatures, the thermally induced extrinsic stresses in the glass-Mo structure may cause bending or mechanical distortion of substrate. During the formation of CIGS films, Na ions diffuse from the soda-lime glass substrate through the Mo back con-tact into the absorber layer. The diffusion of Na into the absorber film depends on the deposition conditions of the Mo back contact.

Molybdenum films were deposited on soda-lime glass substrates by using DC magnetron sputtering. Their structural and morphological properties and their electrical resistivities were analyzed with respect to the working gas (Ar) pressure. The electrical resistivity of the Mo films monotonically increased as the gas pressure was increased. The films showed a (110) preferred orientation,regardless of the working gas pressure. The surface morphology of the films changed from an elongated grain structure at lower working pressures to a porous nodular shape at higher pressures.The surface roughness of the films increased with the working gas pressure. Secondary ion mass spectrometry data showed that Na diffusion from the soda lime glass substrate through the Mo back contact was high, for the film sputtered at 5m Torr. Cu(InGa) Se2 solar cells fabricated on Mo films sputtered at 5 m Torr showed the best conversion efficiency.

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Molybdenum Bar Price in China

The international market supply will remain short in a long time, but under the strong demand, molybdenum price besides China tends to be stable. Affected by the good performance in the international market, the price of molybdenum concentrate and ferro molybdenum continues to increase, especially when mines raised market quotation, sellers are more reluctant to sell. The supply of molybdenum concentrate will be tight in the short term.

In the ferromolybdenum market, manufacturers raise product quotations while traders slow down their paces for purchasing when facing the current market price. With the approaching of Chinese Spring Festival, more enterprises reduce their stocks to relieve financial pressure. So the situation of steel biddings in this week and next week would be very important to trend of ferromolybdenum. The price of ammonium molybdate and molybdenum powder is closely related to terminal demand. If the demand is strong, then the price will rise.

Prices of molybdenum products on Jan. 17, 2018

Picture of molybdenum bar

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Why Is Molybdenum Used in Stainless Steel?

Molybdenum primarily increases the corrosion resistance of stainless steels. Molybdenum containing grades of stainless steels are generally more corrosion resistant than molybdenum-free grades. They are used in applications that are more corrosive, such as chemical processing plants or in marine applications.There are many grades of stainless steels with different molybdenum (and chromium, nickel, nitrogen, etc.) contents.The best grade for a given application is selected based on the corrosivity of the service environment.

As a large atom, molybdenum increases the elevated temperature strength of stainless steels through solid solution hardening.  This effect is used in heat exchangers and other elevated temperature equipment such as in automotive exhaust systems.

To discuss the influence of molybdenum on the metallurgy of stainless steels, it is useful to look at the metallurgy of stainless steels in general.  Based on their microstructure, stainless steels are divided into the following families: austenitic、ferritic、martensitic、duplex and precipitation hardenable.

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Molybdenum Dioxide Price

Molybdenum market quotation: the latest price of molybdenum dioxide, molybdenum powder and molybdenum concentrate maintains stability. Trading volumes in the market are reducing and mines are reluctant to sell due to cold weather decreasing productivity in raw materials. While downstream enterprises are continuing the enquiries, price of molybdenum is high.

Stocks of molybdenum concentrate are tight with rare spot goods in the market, but some of regions have low-price raw materials entering the market. Approaching the Spring Festival, part of downstream enterprises start to accept high-price raw materials for stocking up. At present, insiders are bullish on the afternoon market.

Bidding prices for ferromolybdenum are now high while trading is less in the ferromolybdenum market. Downstream chemical and finished products enterprises are gradually raising product quotations influenced by high raw material price. Accordingly, market price also increases. Chinatungsten Online forecasts that the upward trend in molybdenum price will go on.

Prices of molybdenum products on Jan. 10, 2018

Picture of molybdenum dioxide

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Introduction of Molybdenum Crucible

Introduction of molybdenum crucible:
Standard: GB/T 17992-1999                             
Impurity content: <=0.03%
Mo Content: >=99.95%
Density: >9.8 g/cm3
Working temperature: >1100°C
Content Technique Density Size
Mo >=99.95% Forging >=10.1g/cm3 (10-130mm) dia. x (10-2mm)
Mo >=99.95% Sintering >=9.8g/cm3 (100-500mm) dia. x (50-700mm)

 Most molybdenum crucible is produced by sintering pure molybdenum. The reason to use pure molybdenum as raw material is to prevent other metals melting in the molybdenum crucible from mingling impurities. Because molybdenum crucible has high-temperature resistance, low pollution and other excellent properties, molybdenum crucible is widely used in various industries. According to the required diameter, thickness, tilt angle, we can produce a various shapes and sizes of molybdenum crucible to meet your need.

Molybdenum crucible is a very important and essential tool in many industries. Molybdenum crucible can be used in smelting and rare earth metallurgy, mechanism process, electronics, artificial crystals, coating technology industries, such as: crystal materials, the sapphire growth, vacuum coating production, quartz glass melting furnace, smelting furnace and silicon crystal furnace and so on.

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Molybdenum Powder Price in China

Molybdenum market quotation: the latest price of molybdenum concentrate, molybdenum powder and molybdenum oxide rises slightly due to the improvement of market demand in China. While most of manufacturers have not yet returned to the market after the Christmas, so European molybdenum market is thin now.

Downstream enterprises need high-volume purchases for molybdenum concentrate. But due to the environmental protection policy and cold winter, production rate in mines declines sharply, resulting tight supply of raw material. At the current market, high quotation and fewer transactions coexist.

After the Christmas, international molybdenum price is higher than in domestic and most insiders wait and see. Demand for ferromolybdenum in China improves, part of steel mills start to replenish stocks. It is reported that a steel mill in Shanxi start a new round of biddings for ferromolybdenum, with the quantity of 260 tons. The price remains unknown.

Supported by shortage of raw material supply and rigid demand, quotations in domestic molybdenum market keep going up. Under the background of active steel biddings, ferro molybdenum price will be likely to rise. Downstream molybdenum enterprises may raise prices of molybdenum chemical and products affected by high production cost.

Prices of molybdenum products on Jan. 04, 2018

Picture of molybdenum powder

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