Technical plastics and compounds
Copper and copper alloy powder, copper powder, bronze powder, brass powder
Due to its outstanding wear resistance and tribological properties, PTFE is used as a sliding material (e.g. in bearings) and in seals. In combination with copper or bronze powders as technical compounds, their density, strength and thermal conductivity are improved significantly.
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Cubrotec
Lamellar copper powders for use in contact materials, lubricants and in the chemical industry are produced when copper powder atomized in air is processed in the following ball milling procedures.
| Apparent density [g/cm³] | Copper content [%] | D 50 value [µm] | flowability | Grease content [%] | Sieve analysis [%] | Application | |
|---|---|---|---|---|---|---|---|
| approx. 1 | min. 98 | approx. 38 | not flowable | max. 0.3 | >45µm: max.6 |
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| approx. 1 | min. 98 | approx. 34 | not flowable | max. 0.2 | >45µm: max.5 |
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| approx. 0.7 | min. 95 | approx. 14 | not flowable | approx. 1.4 | >75µm:traces >45µm: max.3 |
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| approx. 0.8 | min. 96 | approx. 20 | not flowable | approx. 0.6 | >45µm: max.1 >75µm:traces |
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| approx. 0.8 | min. 95 | approx. 4 | not flowable | approx. 0.5 | >45µm:traces |
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Rogal Copper GK
Smelting and atomization are used to produce copper powders from highly pure refined or electrolytic copper.
In the air atomization process used by SCHLENK, spherical particles are formed , which are then classified into the required particle size distribution.
| Apparent density [g/cm³] | Copper content [%] | flowability | Phosphorus content [%] | Sieve analysis [%] | Application | |
|---|---|---|---|---|---|---|
| approx. 5 | min. 99 | flowable | max. 0.4 | > 50 µm: max. 5 |
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| ca. 5 | min. 99 | fließfähig | max. 0.4 | > 63 µm: max. 5 |
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| approx. 5 | min. 99 | flowable | max. 0.4 | >100µm: max. 5 < 50µm: max.10 |
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| approx. 5 | min. 99 | flowable | max. 0.4 | >250µm: max. 5 |
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| approx. 5 g/cm³ | min. 99 | flowable | max. 0.4 | >315µm: max. 5 |
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Rogal Brass
Brass is an alloy made of copper and zinc in various compositions.
Air atomization of the molten material results in irregularly shaped powders. Common compositions are brass I (approx. 92%Cu/8%Zn), brass II (approx. 82%Cu/18% Zn) and brass III (approx. 70%Cu/30%Zn)
| Apparent density [g/cm³] | Copper content [%] | flowability | Sieve analysis [%] | Zinc content [%] | Application | |
|---|---|---|---|---|---|---|
| approx. 3 | approx. 92 | flowable | > 63 µm: max. 5 | approx. 8 |
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| approx. 3 | approx. 92 | flowable | >500µm: max. 5 | approx. 8 |
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| approx. 3 | approx. 82 | flowable | >250µm: max. 5 | approx. 18 |
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| approx. 3 | approx. 82 | flowable | >500µm: max. 5 | approx. 18 |
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| approx. 3 | approx. 80 | flowable | >200µm: max. 5 | approx. 20 |
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| approx. 3 | approx. 70 | flowable | >160µm: max. 5 | approx. 30 |
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| approx. 3 | approx. 70 | flowable | >500µm: max. 5 | approx. 30 |
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Rogal Tin Bronze GK
Alloying and atomization of copper and tin in air produces irregularly shaped bronze powder. Deoxidizing components (e.g. phosphorus) can be added to produce powders with light gloss, e.g. those needed in filter materials.
A standard alloy contains approx. 90% copper and 10% tin. Special alloys and the respective particle size distribution are part of the individual specifications and are ensured through effective process and quality control.
| Apparent density [g/cm³] | Copper content [%] | flowability | Phosphorus content [%] | Sieve analysis [%] | Tin content [%] | Application | |
|---|---|---|---|---|---|---|---|
| approx. 5 | approx. 96 | flowable | max. 0.4 | > 63µm: max.5 | approx. 4 |
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| approx. 5 | approx. 90 | not flowable | max. 0.4 | > 25µm: max.5 | approx. 10 |
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| approx. 5 | approx. 90 | flowable | max. 0.4 | > 80µm: max.5 | approx. 10 |
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| approx. 5 | approx. 90 | flowable | max. 0.4 | >125µm:max.5 | approx. 10 |
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| approx. 5 | approx. 90 | flowable | max. 0.4 | >180µm:max.5 <80µm:max.10 | approx. 10 |
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| approx. 5 | approx. 90 | flowable | max. 0.4 % | >250µm:max.5 | approx. 10 |
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| approx. 5 | approx. 89 | flowable | max. 0.4 | >180µm:max.5 | approx.11 |
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Rogal Tin Bronze GS
Alloying and atomization of copper and tin in air produces irregularly shaped bronze powder. Deoxidizing components (e.g. phosphorus) can be added to produce powders with light gloss, e.g. those needed in filter materials.
A standard alloy contains approx. 90% copper and 10% tin. Special alloys and the respective particle size distribution are part of the individual specifications and are ensured through effective process and quality control.
| Apparent density [g/cm³] | Copper content [%] | flowability | Sieve analysis [%] | Tin content [%] | Zinc content [%] | Application | |
|---|---|---|---|---|---|---|---|
| approx. 3 | approx. 88 | not flowable | > 32µm: max.5 | approx. 10 | approx. 2 |
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| approx. 3 | approx. 88 | not flowable | > 63µm: max.5 | approx. 10 | approx. 2 |
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| approx. 3 | approx. 88 | flowable | >160µm:max.5 <40µm:max.20 | approx. 10 | approx. 2 |
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If you would like further information we would be happy to assist you.
