Qingdao hesiway
Industrial Co., Ltd.
Industrial Co., Ltd.
TEL.(86) 186 6170 8309
TEL.(86) 186 6170 8309
Qingdao hesiway
Industrial Co., Ltd.
In the field of petrochemical industry, tungsten trioxide is mainly used as a catalyst. It has the advantages of high catalytic activity, high selectivity, and high stability.Specifically, tungsten trioxide can efficiently catalytically crack heavy hydrocarbon compounds to generate valuable products such as olefins and alkanes, while inhibiting the occurrence of side reactions such as coking and coking.
The process flow of spraying tungsten carbide powder is as follows:Surface treatment: Before tungsten carbide spraying, the surface of the object to be coated needs to be treated. The purpose of this step is to remove dirt and oxides from the surface so that the spray can better adhere to the surface.
Tungsten mud fishing tackle has the following characteristics:Light weight: Tungsten mud fishing tackle is relatively light in weight and will not put too much burden on fishermen when used. It is also easy to carry and store.Good waterproof performance: Tungsten mud fishing tackle has good waterproof performance and can maintain its shape and hardness in the water for a long time, thereby providing more stable and reliable support for fishing.
Tungsten carbide powder metallurgy is a method of manufacturing metals and alloys by mixing tungsten carbide powder with other metal or alloy powders and then sintering or pressure processing at high temperatures to create alloys or materials with desired properties.
The preparation process of tungsten powder mainly includes the following steps:Raw material preparation: The raw materials of tungsten powder are mainly ammonium tungstate and sodium tungstate. Both raw materials are colorless crystals and are easily soluble in water.
The tungsten powder processing process is as follows:Ingredients: Mix tungsten powder, carbon black and copper powder in a certain proportion.Pressing: The mixed raw materials are pressed through a press to make a blank of a certain shape.
There are many types of ferroalloys. According to the main elements in ferroalloys, they mainly include silicon, manganese, chromium, vanadium, titanium, tungsten, molybdenum and other series of ferroalloys.
The use of electric furnace and AOD steelmaking processes to produce stainless steel from silicon-carbon alloy powder has the following advantages.
Specifically, the embrittlement effect caused by oxygen in tungsten products and cemented carbide is used for the segregation of oxygen on the crystal plane. This segregation reduces the surface energy and leads to intergranular cracking.
The processing methods of tungsten powder include hydrogen reduction method and carbon reduction method, which are the early processing methods of tungsten powder.
Recommended products
Powder:WC-12Ni
Preparation:Agglomeration and sintering
GRanularity(μm):45-15
Grade:JFGHWC40Ni
Total carbon T.C:3.7-3.96
Free carbon F.C:≤0.06
1. Tungsten powder has high purity, uniform particle size and good dispersion. It is an important raw material for the production of tungsten carbide powder
Tungsten carbide powder is the main raw material for processing cemented carbide and has more excellent properties.
2. Tungsten powder not only has high hardness, but also has the characteristics of wear resistance, corrosion resistance and high temperature resistance.
3. The melting point of tungsten is 3400 ºC. Boiling point 5555 ºC, insoluble in water, strong acid and alkali resistance.
4.The hardness of tungsten is the hardest among metals. The hardness of sintered tungsten rod is 200 ~ 250 and that of tungsten rod passing through rotary hammer is 350 ~ 400.
Sieving particle size: 60～325 mesh
Appearance: Granular, steel gray, with good fluidity. ,
Loose packing density: 7.3～8.9g/cm3
Tap density: 9.0~10.5g/cm3
Hall flow rate: ≤12 S/50g
Fisher particle size：>30μm
Molecular formula: W
Molecular weight: 183.85
Physical properties: a bright gray particles;
Chemical formula: FeW
Physical properties: the surface shall be smooth and clean, and the section and surface shall be free of significant non-metallic inclusions and rust spots.
Appearance: granular, steel gray, with good fluidity
Loose density: 7.3 ~ 8.9g/cm3
Compaction density: 9.0 ~ 10.5g/cm3
Hall flow rate: ≤ 12 S / 50g
Fischer particle size: > 30 μ m
Sintering temperature: 760 ~ 810 ℃
Hardness: 107 ~ 110 HRB
Chemical formula: WC
Physical properties: rigid gray metal powder.
Molecular formula: WO3
Molecular weight: 231.86
Specific gravity: 7.16g/cm3
Appearance: Light yellow triclinic powder crystals, light yellow heavy powder, which turns dark orange when heated, and restores its color when cold. When the temperature is higher than 740℃, it will transform into orange tetragonal crystals, which will return to the original state after cooling.
Chemical formula: eutectic, two-phase tungsten carbide (WC • W2C) WC
Appearance: dark gray powder, multi angular smooth particles.
Features: high temperature resistance, super wear resistance and impact resistance.
Molecular formula: WC-Co
Appearance: granular, steel gray, with good fluidity
Loose packing density: 7.3～8.9g/cm3
Tap density: 9.0~10.5g/cm3
Hall flow rate: ≤12 S/50g
Fisher particle size: >30μm
Powder:WC-12Ni
Preparation:Agglomeration and sintering
GRanularity(μm):45-15
Grade:JFGHWC40Ni
Total carbon T.C:3.7-3.96
Free carbon F.C:≤0.06
1. Tungsten powder has high purity, uniform particle size and good dispersion. It is an important raw material for the production of tungsten carbide powder
Tungsten carbide powder is the main raw material for processing cemented carbide and has more excellent properties.
2. Tungsten powder not only has high hardness, but also has the characteristics of wear resistance, corrosion resistance and high temperature resistance.
3. The melting point of tungsten is 3400 ºC. Boiling point 5555 ºC, insoluble in water, strong acid and alkali resistance.
4.The hardness of tungsten is the hardest among metals. The hardness of sintered tungsten rod is 200 ~ 250 and that of tungsten rod passing through rotary hammer is 350 ~ 400.
Sieving particle size: 60～325 mesh
Appearance: Granular, steel gray, with good fluidity. ,
Loose packing density: 7.3～8.9g/cm3
Tap density: 9.0~10.5g/cm3
Hall flow rate: ≤12 S/50g
Fisher particle size：>30μm
Molecular formula: W
Molecular weight: 183.85
Physical properties: a bright gray particles;
Chemical formula: FeW
Physical properties: the surface shall be smooth and clean, and the section and surface shall be free of significant non-metallic inclusions and rust spots.
Appearance: granular, steel gray, with good fluidity
Loose density: 7.3 ~ 8.9g/cm3
Compaction density: 9.0 ~ 10.5g/cm3
Hall flow rate: ≤ 12 S / 50g
Fischer particle size: > 30 μ m
Sintering temperature: 760 ~ 810 ℃
Hardness: 107 ~ 110 HRB
Chemical formula: WC
Physical properties: rigid gray metal powder.
Molecular formula: WO3
Molecular weight: 231.86
Specific gravity: 7.16g/cm3
Appearance: Light yellow triclinic powder crystals, light yellow heavy powder, which turns dark orange when heated, and restores its color when cold. When the temperature is higher than 740℃, it will transform into orange tetragonal crystals, which will return to the original state after cooling.
Chemical formula: eutectic, two-phase tungsten carbide (WC • W2C) WC
Appearance: dark gray powder, multi angular smooth particles.
Features: high temperature resistance, super wear resistance and impact resistance.
Molecular formula: WC-Co
Appearance: granular, steel gray, with good fluidity
Loose packing density: 7.3～8.9g/cm3
Tap density: 9.0~10.5g/cm3
Hall flow rate: ≤12 S/50g
Fisher particle size: >30μm
contact Hesiway
Mobile.186 6170 8309
Tel.86 0532 8481 9182
Address.Jihongtan Beiwan Industrial Park, Chengyang,District, Qingdao, Shandong, China
Fax.86 0532 8766 3689
Whatsapp.0086-177 5325 9059
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