Method of producing precious metal alloy objects
AssigneeBiopm AB
InventorBo Carlsson
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Abstract
The present invention provides a method for manufacturing a biocompatible precious metal alloy object. According to a first aspect melting of alloying elements and casting of the biocompatible precious metal alloy are carried out in a process chamber (11) being provided with a process gas of predetermined composition. A burning flame (19) of a hydrocarbon-containing gas provides low oxygen and water content. According to a second aspect post-processing of a precious metal alloy is made in atmosphere provided by the process gas to form the biocompatible precious metal alloy object. The biocompatible precious metal alloy object manufactured according to the invention has a low probability of causing sensitisation when in contact with the human body.
Claims20
1-17. (canceled)
A method for manufacturing a biocompatible precious metal alloy object made of a precious metal alloy, wherein the method comprises the step of (100) forming the biocompatible precious metal alloy object in a process chamber (11), and the step of at least during said forming (101) providing a process gas of predetermined composition in the process chamber (11), characterised in that the process gas has a water content of less than 0.005 kg H2O per kg of process gas and an oxygen content of less than 5%.
Dependencies are inferred from the claim text.