| Copyright © 2009. National Academy of Sciences. All rights reserved. Terms of Use and Privacy Statement |
Below are the first 10 and last 10 pages of uncorrected machine-read text (when available) of this chapter, followed by the top 30 algorithmically extracted key phrases from the chapter as a whole.
Intended to provide our own search engines and external engines with highly rich, chapter-representative searchable text on the opening pages of each chapter.
Because it is UNCORRECTED material, please consider the following text as a useful but insufficient proxy for the authoritative book pages.
Do not use for reproduction, copying, pasting, or reading; exclusively for search engines.
OCR for page 177
Appendix C
PLANT TOURS
The panel, through the genera sity of the companies involved, toured
various titanium processing facilities . These visits permitted the pane 1
to observe first hand the status of current titanium production
activities .
The first tour began in Cleveland, Ohio, on March 30, 1981, when
panel members and some government liaison representatives assembled.
They traveled to the RMI titanium sponge facility in Ashtabula, Ohio, on
March 31. Dominic Strollo, Vice President, Marketi ng, provided a
brief ing session and an inspection of the titanium sponge production
facility that uses the sodium reduction process. The group then
proceeded to the RMI titanium processing plant in Niles, Ohio, where the
sponge, plus selected scrap and master alloys, is vacuum arc melted into
ingots. These ingots then are processed (using standard metallurgical
equipment) into various mill products that are used to fabricate specific
end products. James Daniell, President of RMI, and his stat f met the
group to discuss the operation of this facility and RlII's expectations
and problems. Specific inquiries by the panel into plant operation and
product) on problems were answered by the company stat f during the course
of the visit.
-
The group next visited the mill products facility of the TIMET
Division of the Titanium Corporation of America in Toronto, Ohio. Thi s
visit was arranged by W. W. Minkler, Vice President, Technology, and J.
Byrne, President . The group observed the forging of ingots, plate
rolling, strip rolling and annealing, and roll-and-weld tube productions,
as well as the auxiliary processes such as grinding and pickling f or
product surf ace f inishing, and product inspection.
Crucible Research Laboratories, Colt Industries, in Pittsburgh,
Pennsylvania, was visited on April 1, 1981. This facility does extensive
work in precision pressing titanium powders in ceramic molds and hot
isostatic pressing to near-net shape. The group was given a briefing on
the work in progress and the capabilities of the two processes. Edward
Dulls, President of Crucible Laboratories, was the host, assisted by the
managers of the various activities. Both technologies appear to offer
promise f or near~net-shape f abrication of intricate shapes that have f ine
detail. Very little finishing and touch~up repair in required.
Acceptable low-cost powder appears to be the major bottleneck to
extensive use of this technology .
177
OCR for page 178
178
The second tour started on April 27, 1981, in Portland, Oregon, when
L. Blakely, Design Engineer, Boeing Commercial Aircraf t Company, traveled
from Seattle, Washington, and met with the panel for discussion of
Boeing's use of titanium and its alloys in the new commercial
serf rames--the 757 and 7 67; D . D. Goehler had arranged this meeting .
Design criteria for the use of titanium alloys in airframes were
discussed as was the cost savings possible by substituting titanium f or
steel if the titanium price is right.
On April 28, the group visited Oregon Metallurgical Corporation
(ORElIE:T) in Albany, Oregon, through the courtesy of F. Caputo, Executive
Vice President (H. Peters, President of OREMET, had just passed away) .
This integrated titanium facility uses the magnesium reduction process as
does TIBET. The panel was briefed by the technical and sales staff on
the plant's capabilities and varied product line. A tour of the facility
permitted the panel to make ~ comparison of the two primary titanium
preparation processes, sodium reduction (seen earlier at RMI ~ and
magnesium reduction, and to assess the advantages and shortcomings of
each.
The panel returned to Albany, Oregon, on the same day to examine the
processing at Precision Castparts Corporation. This visit was arranged
by J. Alexander, Director of Research. A brief ing on the capability and
output of this facility was held for the panel by members of the
technical and sales stat f . The panel then toured the f acility and was
shown the various highly complex titanium parts being produced by direct
casting. Here, as in Crucible's powder pressing technology, material is
formed directly to near-net shapes that require minimum sizing, touch-up,
and repair. HIPing, when needed, is done elsewhere on a contract basis.
The TIMET sponge facility in Henderson, Nevada, was visited on
April 29. The panel viewed the TiC14, magnesium production, and
titanium sponge facilities, as well as the ingot melting facilities.
Electrodes Containing sponge and master alloy additions are melted to
prepare ingots for producing mill products such as bars, rods, sheet, and
f orged billet s. Each step of the process was examined in detail and all
questions of the panel were answered by the engineering staff. The
electrolytic process for sponge production is being developed here, but
the group did not examine this activity. The ingots are processed at the
Toronto, Ohio, plant or sold to independent fabricators of mill
products. TIMET's integrated facilities (Henderson and Toronto) make it
the largest U.S. producer of titanium.
On April 30, the group visited the recently activated electrolytic
sponge titanium production facility of D-H Titanium Company in Freeport,
Texas. George Cobel, President, and Donald Turner, Vice President, were
hosts, assisted by the engineering staff. A briefing session was used to
describe the technology employed, its potential, and the future
expectations of this endeavor. The group then was shown the elaborate
equipment used to control each step of the process. The cells were not
OCR for page 179
179
in operation, but the physical facility was shown and described in detail
(with some reservations because of company security policies). The
completely automated electrolytic cell line shows how chemical processing
technology (Dow) has been combined with metallurgical technology (HORNET)
into an innovative modern titanium sponge plant. The facility is still
in it s shakedown stage to work out details of the controls and iron out
the cell operation and electrode stripping mechanism. The inner design
of the cell and its electrode configuration was not shown or described
(patent pending). Plant layout permits rapid expansion by adding cells
to the existing line.
OCR for page 180
Representative terms from entire chapter:
mill products