NIOSHTIC-2 Publications Search

Production of metal powders using upward gas atomization.

Authors
Hamann KD
Source
MS Thesis, University of Missouri--Rolla, Complete Contract No. G1175129-2911, 1991; :1-80
Link
NIOSHTIC No.
10010897
Abstract
A pilot plant for production of metal powders was modified for use with aluminum and magnesium based powders. Such alloys included WE 43 and WZ 68. The production capabilities, limitations, and special features of the plant are discussed. Both the modifications in use and those that proved unsatisfactory are described. The effect of varying operating parameters is presented. These included oxygen levels in the plant atmosphere and gas-metal flow ratios. In certain cases the resulting powders were characterized by one or more of the following: shape, particle size distribution, oxide layer thickness, alloy addition losses, and evidence of rapid solidification effects. Operating parameters were varied to achieve satisfactory operation of the plant, but no systematic studies of the effect of variables such as superheat and nozzle alignment were made because (1) some of the variables were difficult to measure and (2) the plant only operated satisfactorily within a narrow range of values.
Keywords
Metals; Aluminum; Aluminum compounds; Magnesium; Magnesium compounds; Alloys; Metal industry; Metal industry workers; Oxygen levels; Work environment; Manufacturing
CAS No.
7429-90-5; 7439-95-4
Publication Date
19910101
Document Type
OP; Final Contract Report; Thesis
Funding Type
Contract
Fiscal Year
1991
Identifying No.
MIR 16-91; Contract-G1175129-2911
NIOSH Division
WO
Source Name
MS Thesis, University of Missouri--Rolla, Complete Contract No.: G1175129-2911
State
MO
Performing Organization
University of Missouri--Rolla
Page last reviewed: June 15, 2021
Content source: National Institute for Occupational Safety and Health Education and Information Division