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Title:
STEEL WIRE FOR FASTENING COMPONENT
Document Type and Number:
Japanese Patent JP2008240002
Kind Code:
A
Abstract:

To drastically save man-powers by unifying a lubricant film treatment to a wire before cold plastic working and a lubrication treatment applied to the surface of a fastening component after a heat treatment for stabilizing fastening property into one process, and to provide a steel wire which can obtain a fastening component exhibiting a stable black appearance regardless of its production process.

The steel wire for fastening components has a lubricant film containing, as essential components, (a) an alkali metal silicate in which the molar ratio of SiO2 to M2O (M represents alkali metal) is 2-5, (b) crystalline graphite having an average diameter of 10 m, and (c) a polyolefin wax, wherein the mass ratios of (b) and (c) to the total solid content are 1-30 mass% and 30-50 mass%, respectively.


Inventors:
Obara, Shigeo
Nishimura, Shoji
Ueda, Takayuki
Hagiwara, Toshiaki
Application Number:
JP2007000077656
Publication Date:
October 09, 2008
Filing Date:
March 23, 2007
Export Citation:
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Assignee:
SUMITOMO METAL IND LTD
UMEBACHI KOGYO KK
International Classes:
C23C22/62; C10M103/06; C10M125/02; C10M143/02; C10M143/04; C10M169/04; C10M173/02; C10N10/02; C10N20/06; C10N30/00; C10N40/24; C10N50/02