Method of fabricating a prestressed cast iron vessel

Patent · Fri Jan 01 04:00:00 EST 1982

OSTI ID:864165

Lampe, Robert F ^[1]

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1. Bethel Park, PA

A method of fabricating a prestressed cast iron vessel wherein double wall cast iron body segments each have an arcuate inner wall and a spaced apart substantially parallel outer wall with a plurality of radially extending webs interconnecting the inner wall and the outer wall, the bottom surface and the two exposed radial side surfaces of each body segment are machined and eight body segments are formed into a ring. The top surfaces and outer surfaces of the outer walls are machined and keyways are provided across the juncture of adjacent end walls of the body segments. A liner segment complementary in shape to a selected inner wall of one of the body segments is mounted to each of the body segments and again formed into a ring. The liner segments of each ring are welded to form unitary liner rings and thereafter the cast iron body segments are prestressed to complete the ring assembly. Ring assemblies are stacked to form the vessel and adjacent unitary liner rings are welded. A top head covers the top ring assembly to close the vessel and axially extending tendons retain the top and bottom heads in place under pressure.

• Research Organization: Westinghouse Electric Corp
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4322880
• OSTI ID: 864165
• Country of Publication: United States
• Language: English

Related Subjects

/29/220/228/976/
adjacent
apart
arcuate
assemblies
assembly
axially
axially extending
bottom
bottom head
bottom surface
cast
cast iron
close
complementary
complete
covers
double
double wall
eight
exposed
extending
fabricating
form
formed
head
heads
inner
inner wall
interconnecting
iron
iron vessel
juncture
keyways
liner
liner segments
machined
method
mounted
outer
outer surface
outer surfaces
outer wall
outer walls
parallel
plurality
pressure
prestressed
prestressed cast
provided
radial
radially
radially extending
retain
rings
segment
segments
selected
shape
spaced
spaced apart
stacked
substantially
substantially parallel
surface
surfaces
tendons
thereafter
top
top surface
unitary
vessel
wall
walls
webs
welded