BR9903874A - Tubos de liga e métodos de fabricação dos mesmos - Google Patents

Tubos de liga e métodos de fabricação dos mesmos

Info

Publication number
BR9903874A
BR9903874A BR9903874-9A BR9903874A BR9903874A BR 9903874 A BR9903874 A BR 9903874A BR 9903874 A BR9903874 A BR 9903874A BR 9903874 A BR9903874 A BR 9903874A
Authority
BR
Brazil
Prior art keywords
tube
electrode
electrolyte
manufacturing
methods
Prior art date
Application number
BR9903874-9A
Other languages
English (en)
Inventor
John Jones
Terence K Barker
Michael J Yardley
Original Assignee
Doncasters Plc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10837563&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=BR9903874(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Doncasters Plc filed Critical Doncasters Plc
Publication of BR9903874A publication Critical patent/BR9903874A/pt

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F21/00—Constructions of heat-exchange apparatus characterised by the selection of particular materials
    • F28F21/08—Constructions of heat-exchange apparatus characterised by the selection of particular materials of metal
    • F28F21/081—Heat exchange elements made from metals or metal alloys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D13/00—Centrifugal casting; Casting by using centrifugal force
    • B22D13/02—Centrifugal casting; Casting by using centrifugal force of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10G—CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G9/00—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils
    • C10G9/14—Thermal non-catalytic cracking, in the absence of hydrogen, of hydrocarbon oils in pipes or coils with or without auxiliary means, e.g. digesters, soaking drums, expansion means
    • C10G9/18—Apparatus
    • C10G9/20—Tube furnaces
    • C10G9/203—Tube furnaces chemical composition of the tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/40—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only inside the tubular element
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0059—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for petrochemical plants

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Geometry (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)

Abstract

Patente de Invenção:<B>"TUBOS DE LIGA E MéTODOS DE FABRICAçãO DOS MESMOS"<D>. Um tubo perfilado (50b) compreendendo uma liga com alto teor de carbono (mais do que 0,3%), uma superliga ou outro material de alta resistência à deformação, tem um furo estriado com aletas internas (52b) e vales ou calhas interpostas (56b). Tal tubo é feito por fundição centrífuga e usinagem eletroquímica subseq³ênte por meio do arrasto de um eletrodo (104) ao longo do tubo enquanto ao mesmo tempo passa o eletrólito ao longo do tubo e em volta do eletrodo e também aplica uma corrente elétrica entre o tubo e o eletrodo, de modo que o material do tubo passa em solução no eletrólito O eletrodo (104) tem o mesmo perfil que o perfil de saída requerido no tubo (80), todavia tem uma face de trabalho inclinada (124). Uma vara de eletrodo (92) aciona o eletrodo a partir de um dispositivo de montagem de saída (82) para um outro (84), cada um dos quais sustentam o tubo (80) e a solução eletrolítica de suprimento / descarga. O eletrólito é de preferência nitrato de sódio, embora um sistema à base de ácido seja exequível.
BR9903874-9A 1998-08-20 1999-08-20 Tubos de liga e métodos de fabricação dos mesmos BR9903874A (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9818158A GB2340911B (en) 1998-08-20 1998-08-20 Alloy pipes and methods of making same

Publications (1)

Publication Number Publication Date
BR9903874A true BR9903874A (pt) 2001-03-13

Family

ID=10837563

Family Applications (1)

Application Number Title Priority Date Filing Date
BR9903874-9A BR9903874A (pt) 1998-08-20 1999-08-20 Tubos de liga e métodos de fabricação dos mesmos

Country Status (9)

Country Link
US (2) US6250340B1 (pt)
EP (1) EP0980729B1 (pt)
JP (1) JP3094022B2 (pt)
BR (1) BR9903874A (pt)
CA (1) CA2280239C (pt)
CZ (1) CZ295409B6 (pt)
DE (1) DE69900043T2 (pt)
ES (1) ES2154501T3 (pt)
GB (1) GB2340911B (pt)

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Also Published As

Publication number Publication date
US20010054449A1 (en) 2001-12-27
EP0980729B1 (en) 2001-01-03
JP2000064098A (ja) 2000-02-29
GB9818158D0 (en) 1998-10-14
JP3094022B2 (ja) 2000-10-03
US6250340B1 (en) 2001-06-26
GB2340911A (en) 2000-03-01
EP0980729A1 (en) 2000-02-23
CA2280239C (en) 2003-11-25
DE69900043T2 (de) 2001-08-09
US6923900B2 (en) 2005-08-02
CA2280239A1 (en) 2000-02-20
CZ296499A3 (cs) 2000-03-15
CZ295409B6 (cs) 2005-08-17
ES2154501T3 (es) 2001-04-01
GB2340911B (en) 2000-11-15
DE69900043D1 (de) 2001-02-08

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