Whitepapers

Another Aspect Of Polish Contribution to Japan

This speech is about the author’s experience working with a distinguished metallurgist named Tadeusz Sendzimir and the invention of the continuous hot dip galvanizing process.

Regrinding Sendzimir Mill Work Rolls

1957 publication by the Norton Company

Introduction to Sendzimir Rolling Mills

ZR & ZS Mills

World’s First Sendzimir Tandem Mill

by Tsuyoshi Ohama

The First Sendzimir Tandem Mill

Nisshin Steel Co. placed the world’s first Sendzimir tandem mill into operation at its Shunan works in 1969. Located in Nanyo, Japan, the plant occupies a site of approximately one-third square mile. Occupying about 18% of the 315-ft (96 meters) total installation length are four Sendzimir stands: one ZR 22N-50 and three ZR 21B-50. Once up and running, the mill’s maximum finished monthly production capacity totaled 18,300 net tons — 35% 400 series; and 65% 300 series stainless steel.

Development of the Z-High® Design

The first cluster mills with small-diameter work rolls came on the market in the early 1930s. They were initially used to roll low-carbon steel and very special materials in narrow widths. It was only in 1950 that the industry fully recognized the suitability of the Sendzimir cluster mill for rolling stainless steel.

Copper Producer Likes Advantages of Z-Mill Split Housing Design

Mitsubishi Shindoh, a Japanese copper sheet and strip producer, has been operating since 2000 a 26 in (660 mm). wide Sendzimir Z-mill with a pre-stressed split housing supplied by Sendzimir Japan, Ltd. The mill includes Sendzimir’s patented Flexible Shaft Backing Assemblies for improved control of strip shape and is rolling copper and copper alloys.

Control of Quarter Buckle on Sendzimir 20-h Mills – Article

By John W. Turley

Control of Quarter Buckle on Sendzimir 20-High Mills

THE problem of control of strip flatness in cold rolling has challenged the industry for a long time. The problem can be separated into two parts: measurement of flatness; and adjustment of roll gap profile to correct any deviation from the target detected by the measuring device. The flatness measurement problem has largely been solved, and several flatness measuring devices (shapemeters) are now available. These devices all have their limitations, eg, high cost, some are suitable for low tensions only, and frequent discrepancies may be found between their indicated flatness values and actual flatness (as measured subsequently on the strip). However, in general, for a given application, it is possible to obtain a shapemeter that will perform satisfactorily

The Continuous Processing of Stainless Steel at Ugine

A new continuous annealing, pickling, and rolling line just 380 m long that reduces production time from 3 weeks to 20 minutes has been commissioned at Isbergues. The LC2i (Ligne Continue Intégrée Inox) continuous pickling and rolling line for stainless steel was commissioned at Usinor’s Ugine Isbergues works in the north of France in October 1998.