Water Atomized Copper Powders
Purity:99.7%min Product method: Water Atomized CAS no.：7440-50-8 Molecular Formula:Cu
- Water Atomized Copper Powders
Product description
CAS no.:744-50-8 Product name: Water Atomized Copper Powder
HS code:7406209000 EC No.: 231-159-6
Molecular Formula:Cu Color: Darker Rosy/Reddish Metal
Shape:Irregular，Subglobose Purity:99%min
Molecular Weight:63.55 Freezing/Melting Point:1083.4℃
Boiling Point:2567 ℃ Apperent Density: 2.3-3.5g/cm3
Place of Origin:Jiangsu, China Product method: Water Atomized
Water Atomized Copper Powder Pictures &Patameters
Water Atomized Copper Powder Features
Water atomized copper powders show typically irregular morphology.
Water Atomized Copper Powder comes in a pure fine powder form, including irregular and spherical shape. Cu content is 99.7% min.
Copper powder properties of formability, inoxidizability, compressibility, sintering activity and well-developed surface are well-fitted in PM industry.
Two types of water atomized grades are available:
a) High apparent density (range 3-4 g/cm3)
b) Lower apparent density (range 2-3g/cm3)
table：
| Products Name | 型号 Model |
CAS | EINECS | Purity | APS （Average particle size ) |
形貌shape |
| 30-60mesh sphecial copper powder | CM-121W-30H | 7440-50-8 | 231-159-6 | 99.6%min | 0.535mm~0.221mm | Subglobose |
| 30mesh sphecial copper powder | CM-121W-30 | 7440-50-8 | 231-159-6 | 99.6%min | 0.535mm~0.221mm | Subglobose |
| 60-180mesh spherical copper powder | CM-121W-60H | 7440-50-8 | 231-159-6 | 99%min | 0.250mm~0.090mm | Subglobose |
| 30-100Mesh Copper particles | CM-100 | 7440-50-8 | 231-159-6 | 99.5%min | 30-100 Mesh | Subglobose |
| 200 mesh spherical s copper powder | CM-121W-200 | 7440-50-8 | 231-159-6 | 99%min | 200mesh（~75μm） | Subglobose |
| 400 mesh spherical copper powder | CM-121W-400 | 7440-50-8 | 231-159-6 | 99%min | 400Mesh(~38μm) | Subglobose |
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Water Atomized Copper Powder Applications
- Sintering (either mixed with tin powders and/or prealloyed powders on bronze base or as additive in iron powder mixes)
- Brake and friction lining
- Brazing and welding
- Filler
- Metallurgy industry
- Chemical industry for chemical reaction.
- For antiseptic substance in food packing and reducing agent.
- Fine particles copper powder can be used for diamond tools.
- Friction materials
- Electrical carbon products
- Metal injection molding
- Cold spraying and the thermal spraying
- Hard alloy, electric conductive slurry etc.
Factory photo
The process of atomized copper powder is as follows
Electrolytic copper block – smelting – atomization – oxidation – reduction – broken – anti-oxidation treatment – screening – batching – finished product
1. Atomization
Industrialized atomized copper powder production is divided into two types: gas atomization method and water atomization method. Production practice has proved that water atomization production is better than aerosolization.
2. Oxidation
The oxidation process has a great impact on the production of high performance low bulk density copper powder. It has been found in production that the oxidation mode, oxidation time and oxidation temperature have a great influence on the oxidation effect of the powder. Especially in the same oxidation time and oxidation temperature, the oxidation mode has a particularly large effect on the oxidation effect.
The oxidation method is divided into static and dynamic modes. During static oxidation, the copper powder oxidizes very slowly and is prone to agglomeration; dynamic oxidation is not good, so its oxidation effect is very good. For example, under the condition of 5000c/3h, the static oxidation copper powder has a dynamic oxidation oxygen content of 7.5% and a bulk density of 3.80g/cm3; the dynamic copper oxide powder has an oxygen content of 18.7% and a bulk density of 2.32g/cm3.
Of course, proper oxidation temperature and oxidation time are also important during the oxidation process and will not be discussed here.
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