PIN FOR CHAIN - TSUBAKIMOTO CHAIN CO

Title:

PIN FOR CHAIN

Document Type and Number:

Japanese Patent JPS61264170

Kind Code:

A

Abstract:

PURPOSE: To obtain a pin for a chain having superior wear resistance, cuttability and breaking strength by subjecting the surface of a pin stock consisting of a specified amount of C, Mn, Si, Cr, Mo and Fe to carburization, chromizing and heat treatment.

CONSTITUTION: The surface of a pin stock consisting of 0.1W<0.4% C, Mn, Si, Cr, Mo and the balance Fe is carburized to form a high carbon surface layer contg. ≥0.6% C. The carburized stock is chromized and heat treated. By the heat treatment, a wear resistant surface layer contg. dispersed metallic carbide grains and having high hardness is formed on the chromized carburized stock, and a pin for a chain having the superior cuttability and the breaking strength owing to the low carbon steel core is obtd.

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Inventors:

KITAORI TADAHIRO
OGINOYA TSUTOMU
KOZAKURA NOBUTO

Application Number:

JP10385485A

Publication Date:

November 22, 1986

Filing Date:

May 17, 1985

Export Citation:

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Assignee:

TSUBAKIMOTO CHAIN CO

International Classes:

B21L9/00; B21L9/02; C22C38/22; C23C8/22; C23C10/10; C22C38/00; C23C10/32; F16G13/06; (IPC1-7): B21L9/02; C22C38/22; C23C10/10; C23C10/32; F16G15/00

Domestic Patent References:

JPS5382628A	1978-07-21
JPS57134551A	1982-08-19

Attorney, Agent or Firm:

Yuichi Yukawa

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