摘要:
The present invention provides a rapidly dissolving additive for metal melts, wherein it contains or consists of 2 to 50% by weight of a powdered component A, consisting of magnesium and/or a magnesium-containing alloy, and 50 to 98% by weight of a powdered component B, consisting of one or more alloying metals, the components A and B being intimately mixed and being present in pressed or compacted form.
摘要:
The present invention provides an agent for the introduction of nitrogen into cast iron, wherein it contains or consists of at least 50% by weight of at least one nitrogen-containing compound with an N--C--N structure and/or a mixture of calcium cyanamide with nitrides of silicon, ferrosilicon, manganese and chromium.The present invention also provides a process for the introduction of nitrogen into cast iron using this agent.
摘要:
The present invention provides a rapidly dissolving additive for molten metal, wherein it contains 2 to 50% by weight of a component A, which consists of an alkali metal aluminium fluoride and/or an alkali metal aluminium fluoride-containing salt mixture, and 50 to 98% by weight of a component B, which consists of at least one alloying metal, the alloying metal being different from the base metal to be allied, the components A and B being present intimately mixed.The present invention also provides a process for the production of this additive.