Dry film lubricant for difficult drawing applications of galvanized steels

Journal Article · Wed Sep 01 04:00:00 EDT 1993 · Iron and Steel Engineer; (United States)

OSTI ID:6038500

Wakano, Shigeru; Sakane, Tadashi; Hirose, Yozou ^[1]; Matsuda, Naomichi; Onodera, Show ^[2]

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1. Sumitomo Metal Industries, Ltd., Amagasaki (Japan). Iron and Steel Research Lab.
2. Nippon Oil and Fats Co., Ltd., Amagasaki (Japan). Oleo Chemicals Research Lab.

Press formability of metals sheets is considered to depend on surface lubricity, press forming condition and mechanical properties of the metal sheets. In Zn and Zn-alloy plated steel sheets with heavy coatings, surface lubricity is the most important property. This is because the low melting temperature and low hardness of the plated layer occasionally cause microscopic galling through deformation at the beads of dies which may, consequently, result in sheet breakage. Press formability of Zn and Zn-alloy plated steel sheets with heavy coating weight has been improved by the use of a high viscosity lubricant oil and a Fe-Zn alloy flash-plating on galvannealed steel. However, the use of high viscosity lubricant oils created problems with oil staining and removal before painting. An alloy flash plating results in appreciably higher production costs. This article describes the characteristics of a thin film dry lubricant, Super S-coat, as a new countermeasure, which will overcome these problems.

• OSTI ID: 6038500
• Journal Information: Iron and Steel Engineer; (United States), Journal Name: Iron and Steel Engineer; (United States) Vol. 70:9; ISSN IRSEA5; ISSN 0021-1559
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320302* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Materials
36 MATERIALS SCIENCE
360101 -- Metals & Alloys-- Preparation & Fabrication
ALLOYS
COATINGS
COPOLYMERS
DRAWING
ELEMENTS
ESTERS
FABRICATION
IRON ALLOYS
IRON BASE ALLOYS
LUBRICANTS
MATERIALS WORKING
METALS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
PERFORMANCE
POLYMERS
STEELS
VISCOSITY
ZINC
ZINC ALLOYS