GB1322285A - Method of forming a thermally-insulating casing on tubular articles - Google Patents

Method of forming a thermally-insulating casing on tubular articles

Info

Publication number
GB1322285A
GB1322285A GB1322285DA GB1322285A GB 1322285 A GB1322285 A GB 1322285A GB 1322285D A GB1322285D A GB 1322285DA GB 1322285 A GB1322285 A GB 1322285A
Authority
GB
United Kingdom
Prior art keywords
mould
articles
autoclave
thermally
hours
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GLAVLENINGRADSTROI PRI LENGORI
Original Assignee
GLAVLENINGRADSTROI PRI LENGORI
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GLAVLENINGRADSTROI PRI LENGORI filed Critical GLAVLENINGRADSTROI PRI LENGORI
Publication of GB1322285A publication Critical patent/GB1322285A/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A41—WEARING APPAREL
    • A41F—GARMENT FASTENINGS; SUSPENDERS
    • A41F9/00—Belts, girdles, or waistbands for trousers or skirts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B28—WORKING CEMENT, CLAY, OR STONE
    • B28B—SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
    • B28B21/00—Methods or machines specially adapted for the production of tubular articles
    • B28B21/70—Methods or machines specially adapted for the production of tubular articles by building-up from preformed elements
    • B28B21/72—Producing multilayer tubes

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Ceramic Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Curing Cements, Concrete, And Artificial Stone (AREA)

Abstract

1322285 Thermally insulating pipes ORDENA LENINA GLAVLENINGRADSTROI PRI LENGORISPOLKOME 8 Nov 1971 51805/71 Heading B5A [Also in Division F2] Tubular articles such as pipes are given a casing of thermally insulating, cellular concrete, by arranging the articles in a multiple-tier mould, filling the mould with cellular concrete at a pressure of (0À1-1À2) atm., curing or leaving to cure the concrete, and providing heat and moisture treatment in an autoclave at a pressure of saturated steam of (8-12) atm. for (12-14) hours. As described, metal pipes were positioned in a multi-tier mould; after filling the mould was left for 12 hours before undergoing 12 hours of treatment in an autoclave, and then the articles were left to cool in the autoclave for 1 hour. A number of examples are described.
GB1322285D 1971-11-08 1971-11-08 Method of forming a thermally-insulating casing on tubular articles Expired GB1322285A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5180571 1971-11-08

Publications (1)

Publication Number Publication Date
GB1322285A true GB1322285A (en) 1973-07-04

Family

ID=10461442

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1322285D Expired GB1322285A (en) 1971-11-08 1971-11-08 Method of forming a thermally-insulating casing on tubular articles

Country Status (1)

Country Link
GB (1) GB1322285A (en)

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees