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It is not a new casting process, it is an melt preparation HPDC process

How to lower the CO2 footprint in your product

With Rheocasting there are several ways to decrease the carbon foot print of Your product by using one or more of the following approaches:

  • Use a low co2 emission alloy
  • Design a lighter part with a more competent alloy

Use low CO2 emission alloys
There are two classes of aluminum alloys to use: secondary and primary, both possible to use with Rheocasting. Typical CO2 values are as below:

Type of alloyTypical alloysKg CO2 per kg of alloy
Primary alloys, coal basedVilka skriver vi här? Aural 5?18-19 kg
Primary alloy, hydro power based4,6 kg
Secondary eutectic HPDC alloy226/ENAB 46000/A3800,8-1,0 kg
Secondary Rheocasting alloyA 356/ ENAB 42000, Rheocool (AlSi3Fe)0,14-0,47 kg

Silicon is the strongest driver of CO2 in alloy production and as Rheocasting enables the use of alloys with lower contents the reduction in CO2 is immediate.

Design a lighter part with a more competent alloy
Using Rheocasting in combination with alloys that have higher mechanical properties gives stronger or more thermal conductive gives a reduced need of wall thickness to meet strength requirements on the design. Given the spectrum of used thermal treatments in combination with very low porosity levels opens lightweight opportunities.

Is this all?
No, what You have read is a simplified information and for more information please contact us for a more details: alloys@comptech.se

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