Achemetal Tungsten & Molybdenum Co., Ltd Achemetal Tungsten & Molybdenum Co., Ltd

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Material for Die-casting Mold

(Summary description)In the process of die-casting iron/steel materials, the operating temperature of die-casting mold cavities can reach 1,000℃. After severe oxidation, corrosion and scouring of cavity surfaces, cavities will fail frequently because of severe plastic deformation and netty cracks, and can only die-cast dozens of or hundreds of parts. Therefore, refractory alloys of tungsten, molybdenum, niobium and other alloys with the melting point of more than 2,600℃ can be used for manufacturing cavities of die-casting molds. With the recrystallization temperature of more than 1,000℃, they can operate above this temperature for a long term. Titanium-zirconium-molybdenum alloy represents molybdenum-based alloy while tungsten-molybdenum-nickle-iron represents tungsten-based alloy.

Material for Die-casting Mold

(Summary description)In the process of die-casting iron/steel materials, the operating temperature of die-casting mold cavities can reach 1,000℃. After severe oxidation, corrosion and scouring of cavity surfaces, cavities will fail frequently because of severe plastic deformation and netty cracks, and can only die-cast dozens of or hundreds of parts. Therefore, refractory alloys of tungsten, molybdenum, niobium and other alloys with the melting point of more than 2,600℃ can be used for manufacturing cavities of die-casting molds. With the recrystallization temperature of more than 1,000℃, they can operate above this temperature for a long term. Titanium-zirconium-molybdenum alloy represents molybdenum-based alloy while tungsten-molybdenum-nickle-iron represents tungsten-based alloy.

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Material for Die-casting Mold

In the process of die-casting iron/steel materials, the operating temperature of die-casting mold cavities can reach 1,000℃. After severe oxidation, corrosion and scouring of cavity surfaces, cavities will fail frequently because of severe plastic deformation and netty cracks, and can only die-cast dozens of or hundreds of parts. Therefore, refractory alloys of tungsten, molybdenum, niobium and other alloys with the melting point of more than 2,600℃ can be used for manufacturing cavities of die-casting molds. With the recrystallization temperature of more than 1,000℃, they can operate above this temperature for a long term. Titanium-zirconium-molybdenum alloy represents molybdenum-based alloy while tungsten-molybdenum-nickle-iron represents tungsten-based alloy. These kinds of materials feature extremely high melting point, better high-temperature strength, good heat resistance and corrosion resistance, excellent heat conductivity, thermal fatigue resistance, no bonding with molten metal, good plasticity and convenient molding. It is mainly applied to die-casting molds of copper alloy and iron/steel materials operating at a higher temperature, and can also be used as a thermal extrusion mold and other molds of titanium alloy and heat-resisting steel, with the service life far longer than that of other various kinds of hot work die steel. With outstanding heat conductivity of tungsten-molybdenum-nickle-iron, it also takes advantages in large-batch continuous production of aluminum die castings in the automobile industry.

 

Material for Die-casting Mold

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Next: Hot Runner and Nozzle
Heater 2017-11-21 00:00:00
With extremely low saturated vapor pressure, low thermal expansion coefficient and extremely good high-temperature strength, tungsten and molybdenum materials are the best choice for high-temperature in-furnace heating elements.
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Shielding 2017-11-21 00:00:00
Tungsten-molybdenum materials are suitable to be used for shielding at the temperature of 1,300℃ to 2,800℃, which reserve the heat in an effective interval in the modes of heat reflection and convection obstruction.
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Hot Isostatic Pressing Cylinder 2017-11-21 00:00:00
Heat screens applied in hot isostatic presses are called hot isostatic pressing cylinders. Hot isostatic pressing cylinders have higher requirements than common heat screens when working under the conditions of 2000℃ and 2000MPa. To ensure the air tightness, Achemetal has adopted a thermal spraying process based on welding.
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Crucible 2017-11-21 00:00:00
Tungsten powder or molybdenum powder is directly subjected to sintering molding or hot isostatic pressing molding, and is mostly used for manufacturing large crucibles of sintering furnaces, crystal growth furnaces, glass smelting and rear earth smelting equipment. Particularly, these kinds of crucibles are used in furnaces of growing sapphire crystals by KY method, EFG method and heat exchange method in large quantity. Usually, the wall thickness is 8-15mm; the diameter is 100-600mm; the height is 50-700mm. The purity of these kinds of crucibles: W≥99.95%; the density usually can reach 18.2g/cm3; and the density can reach more than 18.8g/cm3 by a hot isostatic pressing technology as required specially. The density of molybdenum crucibles usually can reach about 10.0g/cm³.
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Loaded Boat 2017-11-21 00:00:00
In sintering furnaces or thermal treatment furnaces, tungsten or molybdenum materials are required to be prepared into containers when the processed materials are powder or granules. Loaded boats can be designed in different shapes according to different shapes and ventilation conditions of the processed materials. Achemetal can provide boat vessels made of pure tungsten, pure molybdenum as well as tungsten alloy and molybdenum alloy according different requirements on the operating temperature and strength as well as purity. Tungsten-molybdenum loaded boats manufactured by Achemetal feature good high-temperature deformation resistance and high dimensional accuracy.  
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Rack 2017-11-21 00:00:00
Racks are used for placing and transferring workpieces needing to be processed in high-temperature annealing furnaces and sintering furnaces, and have extremely high requirements on the high-temperature strength of materials for manufacturing racks. Achemetal can manufacture pure tungsten, pure molybdenum, molybdenum-lanthanum alloy and titanium-zirconium-molybdenum alloy racks, to enhance creep resistance and high-temperature strength of materials. 
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Fastener 2017-11-21 00:00:00
Achemetal can provide you with tungsten or molybdenum screws or nuts of British system or metric system.
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Tungsten-molybdenum Material for Monocrystalline Silicon Furnace 2017-11-21 00:00:00
With high-temperature resistance and low volatility, tungsten-molybdenum materials are widely applied to monocrystalline silicon furnaces and polycrystalline silicon furnaces.
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