Method for lowering powder size and changing powder shape in atomization process of molten metal
A metal melt and atomization process technology, applied in the field of powder metallurgy, can solve the problems of increased energy consumption, difficulty in obtaining flake powder, complicated technology, etc., and achieve the effect of reducing particle size
Inactive Publication Date: 2016-02-03
POCO HLDG CO LTD
5 Cites 3 Cited by
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Abstract
The invention provides a method for lowering the powder size and changing the powder shape in the atomization process of molten metal. A discharge spout head is arranged at the position, where the molten metal enters an atomization chamber through a leak tundish, of a discharge spout. The discharge spout head is provided with one or more holes. The molten metal enters the atomization chamber through the holes in the discharge spout head and is beaten and smashed into metal powder through high-pressure gas or high-pressure water. Under the conditions that the pressure or flow or nozzle structure of original fluid is not changed, and the atomization productivity is not changed, only the discharge spout structure of metal liquid is changed, the grain size of metal powder can be effectively reduced, and the average grain size can be reduced to 20-40 micrometers. The method can be used for preparing flaky or elliptical flaky powder or powder in other shapes, and the problem that flaky powder can be obtained through subsequent processing in the prior art is solved.
Technology Topic
TundishMicrometer +7
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PUM
Property | Measurement | Unit |
Diameter | <= 3.0 | mm |
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