The Effect of the Difference in Lubricant's Substance on the Flow Characteristics of the Segregation-free Iron Mixed Powders

Satoshi Uenosono, Yukiko Ozaki

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Stearamide, ethylene-bis-stearamide, polyethylene, PMMA and zinc stearate were used as lubricant in the segregation-free iron mixed powders. The difference in lubricant's substance affected strongly on the frictional properties and character such as the flow rate and index of discharging from hopper of the segregation-free iron mixed powders. The adhesive forces (FH) were calculated with the result of the shear test of the sample powders. The value of FH/d2, in which d was the average diameter of the powder, is a good index for the flow character. The flow character of the powder improved with a decrease in the value of FH/d2.

Original languageEnglish
Pages (from-to)798-805
Number of pages8
JournalFuntai Oyobi Fummatsu Yakin/Journal of the Japan Society of Powder and Powder Metallurgy
Volume50
Issue number10
DOIs
Publication statusPublished - Oct 2003

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Powders
Lubricants
Iron
Hoppers
Polyethylene
Polymethyl Methacrylate
Polyethylenes
Adhesives
Ethylene
Zinc
Flow rate

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

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AB - Stearamide, ethylene-bis-stearamide, polyethylene, PMMA and zinc stearate were used as lubricant in the segregation-free iron mixed powders. The difference in lubricant's substance affected strongly on the frictional properties and character such as the flow rate and index of discharging from hopper of the segregation-free iron mixed powders. The adhesive forces (FH) were calculated with the result of the shear test of the sample powders. The value of FH/d2, in which d was the average diameter of the powder, is a good index for the flow character. The flow character of the powder improved with a decrease in the value of FH/d2.

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