Abstract
Scientific work is done in the framework of complex special purpose program “Organizing collection, utilization and recycling processes of hard alloys containing tungsten, tungsten scrap, molybdenum, cobalt and their alloys”. The authors extend their thanks to Rostyslav Didyk, Professor with the Department of Mining Engineering of the National Mining University.
Highlights
Mining minerals and the resulting waste are among principal factors which contribute to the environment pollution
Scrap of super hard metals is being exported to Russia, and tools are purchased by Ukrainian import companies
There is a high deficiency of main components for hard alloys manufacturing such as tungsten, cobalt and nickel
Summary
The present article considers analysis of current methods of solid tungsten cobalt alloys regeneration: pyro and hydro metallurgical, chemical (chlorine, zinc), thermochemical and the method which uses energy of blasting explosives. A comparative economic analysis of cermet alloys regeneration technologies was conducted. Fundamental way of shock wave treatment to stimulate destruction of powder product of any configuration in order to obtain a high quality powder for further formation, sintering and tool manufacturing of multiple use is demonstrated; ecologically friendly technology of hard alloys and cermet components of outdated military hardware and ammunition recycling has been developed. Industrial implementation of the developed technology allows to solve the following issues: – utilizing super hard metal and alloys scrap for subsequent regeneration, which ensures significant savings of strategic raw material; – the use of new technology, which excludes ineffective ways of scarce raw materials processing and manufacturing products satisfying international standards; – gradual reduction of import in favor of hard alloys cermet tools; – reduction and subsequent abandonment of strategic metals and alloys scrap export, shifting towards the export of ready products – powders and tools, which will significantly increase foreign currency earnings in the country
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
