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Title:
RING FOR SPINNING MACHINE
Document Type and Number:
Japanese Patent JPS56116870
Kind Code:
A
Abstract:

PURPOSE: To produce the ring for the spinning machine with abrasion resistance and low strain by a method wherein the ring for the spinning machine is produced from an alloyed steel containing an alloy element forming a stable nitride and mild nitriding or nitriding treatment is applied to said ring.

CONSTITUTION: The ring for the spinning machine is produced from said alloy steel containing at least one or more of 0.2W2.0% of Al, 0.2W26.0% of Cr and 0.4W3.0% of Ti. The resulting ring is subjected to mild nitriding or nitriding treatment to form a composite nitride layer comprising a nitride of Fe and a stable nitride of Al, Cr or Ti on a surface thereof and, thereby, abrasion resistance of said ring is enhanced. Because a nitriding treatment temp. is lower than a conventional carburization tempering treatment temp., the strain generated by heat treatment is extremely low.


Inventors:
MARUTA AKIRA
Application Number:
JP1867180A
Publication Date:
September 12, 1981
Filing Date:
February 18, 1980
Export Citation:
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Assignee:
KANAI HIROYUKI
International Classes:
C23C8/22; C23C8/00; C23C8/32; D01H7/60; (IPC1-7): C23C11/14