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Title: Method of fabricating a prestressed cast iron vessel

Abstract

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.

Inventors:
 [1]
  1. (Bethel Park, PA)
Issue Date:
Research Org.:
Westinghouse Electric Corp
OSTI Identifier:
864165
Patent Number(s):
4322880
Assignee:
United States of America as represented by United States (Washington, DC) OSTI
DOE Contract Number:  
ET-78-C-01-3013
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
method; fabricating; prestressed; cast; iron; vessel; double; wall; segments; arcuate; inner; spaced; apart; substantially; parallel; outer; plurality; radially; extending; webs; interconnecting; bottom; surface; exposed; radial; surfaces; segment; machined; eight; formed; top; walls; keyways; provided; juncture; adjacent; liner; complementary; shape; selected; mounted; welded; form; unitary; rings; thereafter; complete; assembly; assemblies; stacked; head; covers; close; axially; tendons; retain; heads; pressure; liner segments; outer surfaces; outer wall; cast iron; bottom head; top surface; inner wall; spaced apart; outer surface; radially extending; bottom surface; double wall; substantially parallel; outer walls; axially extending; prestressed cast; iron vessel; /29/220/228/976/

Citation Formats

Lampe, Robert F. Method of fabricating a prestressed cast iron vessel. United States: N. p., 1982. Web.
Lampe, Robert F. Method of fabricating a prestressed cast iron vessel. United States.
Lampe, Robert F. Fri . "Method of fabricating a prestressed cast iron vessel". United States. https://www.osti.gov/servlets/purl/864165.
@article{osti_864165,
title = {Method of fabricating a prestressed cast iron vessel},
author = {Lampe, Robert F.},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1982},
month = {1}
}

Patent:

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