BRPI1002661A2 - processo da junção do tubo bimetálico com terminais de cobre e produto obtido - Google Patents

processo da junção do tubo bimetálico com terminais de cobre e produto obtido Download PDF

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Publication number
BRPI1002661A2
BRPI1002661A2 BRPI1002661-4A BRPI1002661A BRPI1002661A2 BR PI1002661 A2 BRPI1002661 A2 BR PI1002661A2 BR PI1002661 A BRPI1002661 A BR PI1002661A BR PI1002661 A2 BRPI1002661 A2 BR PI1002661A2
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BR
Brazil
Prior art keywords
pipe
copper
steel
joining
product
Prior art date
Application number
BRPI1002661-4A
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English (en)
Inventor
Hiroki Okamoto
Original Assignee
Bundy Refrigeracao Brasil Ind E Com Ltda
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Publication date
Application filed by Bundy Refrigeracao Brasil Ind E Com Ltda filed Critical Bundy Refrigeracao Brasil Ind E Com Ltda
Priority to BRPI1002661-4A priority Critical patent/BRPI1002661A2/pt
Priority to EP11250298A priority patent/EP2377627A1/en
Priority to US13/046,188 priority patent/US20110220237A1/en
Priority to MX2011002751A priority patent/MX2011002751A/es
Publication of BRPI1002661A2 publication Critical patent/BRPI1002661A2/pt

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D39/00—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders
    • B21D39/04—Application of procedures in order to connect objects or parts, e.g. coating with sheet metal otherwise than by plating; Tube expanders of tubes with tubes; of tubes with rods
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C1/00—Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
    • B21C1/16—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes
    • B21C1/22—Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes specially adapted for making tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, rods, wire, tubes, profiles or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
    • B21C37/15—Making tubes of special shape; Making tube fittings
    • B21C37/154—Making multi-wall tubes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints
    • F16L13/08—Soldered joints
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L13/00—Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints
    • F16L13/14—Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling
    • F16L13/141—Non-disconnectable pipe joints, e.g. soldered, adhesive, or caulked joints made by plastically deforming the material of the pipe, e.g. by flanging, rolling by crimping or rolling from the outside
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L58/00—Protection of pipes or pipe fittings against corrosion or incrustation
    • F16L58/02—Protection of pipes or pipe fittings against corrosion or incrustation by means of internal or external coatings
    • F16L58/04—Coatings characterised by the materials used
    • F16L58/08—Coatings characterised by the materials used by metal
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
    • F16L9/00—Rigid pipes
    • F16L9/02—Rigid pipes of metal
    • 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
    • F28F1/003—Multiple wall conduits, e.g. for leak detection
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • F25B2400/052—Compression system with heat exchange between particular parts of the system between the capillary tube and another part of the refrigeration cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/05—Compression system with heat exchange between particular parts of the system
    • F25B2400/054—Compression system with heat exchange between particular parts of the system between the suction tube of the compressor and another part of the cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
    • F28F2255/04—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes comprising shape memory alloys or bimetallic elements
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T29/00—Metal working
    • Y10T29/49—Method of mechanical manufacture
    • Y10T29/49826—Assembling or joining

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Non-Disconnectible Joints And Screw-Threaded Joints (AREA)
  • Heat Treatment Of Articles (AREA)
  • Arc Welding In General (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

PROCESSO DA JUNçáO DO TUBO BIMETALICO COM TERMINAIS DE COBRE E PRODUTO OBTIDO A presente invenção refere-se à união do tubo bimetálico (1) com outro tubo, através de qualquer tipo de solda, para aplicação em sistemas de refrigeração, ar condicionado, fogões e aplicações de transferência de líquidos e gases.

Description

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" PROCESSO DA JUNÇÃO DO TUBO BIMETÁLICO ofeM. TERMINAIS DE COBRE E PRODUTO OBTIDO"
A presente invenção refere-se à união do tubo bimetálico com o tubo cobre/aço/alumínio, através de qualquer tipo de união de solda ou Iokringf para aplicação em sistemas de refrigeração, ar condicionado, fogões e " aplicações de transferência de líquidos e gases.
DESCRIÇÃO DO ESTADO DA TÉCNICA
Os tubos bimetálicos utilizados atualmente possuem suas camadas unidas por soldagem, entretanto, tal união se não realizada perfeitamente, pode ocasionar vazamento de líquidos ou gases através de camadas ao longo do tubo.
Adicionalmente, o cobre utilizado na fabricação de tubos com uma única camada possui um alto preço, sendo que os tubos bimetálicos ajudam a diminuir os custos relativos à utilização desses tubos.
O documento CN2881266 revela um tubo bimetálico, entretanto, a junção entre as camadas de cobre e aço é realizada através de solda, o que demanda mais material para provimento do produto final e uma etapa adicional muito mais complexa que as etapas da presente invenção.
DESCRIÇÃO RESUMIDA DOS DESENHOS
A presente invenção será, a seguir, mais sucintamente descrita com base em um exemplo de execução representado nos desenhos. As figuras exibem: Figura 1 - Vista em corte de um tubo bimetálico Aço/Cobre, com retirada da capa de cobre da extremidade.
Figura 2 - Desenho da junção das extremidades com solda. Figura 3 - Desenho da junção das extremidades, bom lokring.
Figura 4 - Comparação entre a junção objeto da presente invenção e junções de tubos do estado da técnica.
Figura 5 - Comparação entre a junção objeto da presente invenção e junções de tubos do estado da técnica.
DESCRIÇÃO DETALHADA DA INVENÇÃO
A figura 1 mostra o tubo bimetálico 1 provido com aço 3 e cobre 2 em corte objeto da presente invenção e a região de retirada da proteção de cobre 4, para o efeito de soldagem com outra extremidade, sendo esta outra extremidade provida em aço/cobre/alumínio, utilizando-se a solda por brasagem 5 ou lokring 6, que representa um encaixe usado para conectar extremidades de tubos se diversos tipos de materiais sem o uso do calor.
No referente à solda por brasagem 5 ou lokring 6 (figura 2 e 3), a retirada da região da capa de cobre da extremidade 4, como mostrado na figura 1, pode variar de 5 a 50mm de comprimento, para junção do tubo bimetálico aço/cobre 1 com outro material.
<table>table see original document page 3</column></row><table>
0 obj etivo da presente invenção é prover a união de dois tubos, sendo eles soldados ou com lokring, utilizando o tipo de junção apresentado nas figuras 2 e 3, onde a solda penetra, tanto na capa de cobre quanto no material a ser unido, protegendo iy
a junta soldada contra oxidação e vazamento de líquidos ou na capa de cobre. 'OC'
Os tubos de aço serão encapados pelo tubo de cobre, através do efeito mecânico de pressionar a capa de cobre sobre o aço (processo de trefila), sem deixar folgas entre eles.
Os dois tubos são providos para o processo em bobinas, onde serão endireitados e cortados na medida necessária de comprimento para forno de recozimento.
A composição é formada pela inserção, do tubo de aço no tubo de cobre, por meios de ferramentas auxiliares, sendo estes trefilados para o diâmetro desejado e depois de recozidos em forno, com velocidade e temperatura ajustada, para o processo de recozimento.
O processo da junção do tubo bimetálico 1 possui
as etapas de:
.1°) Provimento do tubo single wall de aço 3.
.2°) Provimento de bobina de tubo de cobre 2.
.3°) Endireitamento do tubo de cobre 2 e aço 3, deixando retos e preparados para inserção do cobre no aço.
.4°) Inserção do tubo reto de cobre 2, sobre o tubo de aço 3 para formação do tubo composto aço/cobre 1.
.5°) Trefila do tubo composto aço/cobre para o diâmetro de tubo desejado.
.6°) Forno para recozimento do tubo composto, após trefila com velocidade e temperatura ajustada conforme dureza necessária do tubo composto aço/cobre 1.
.7°) Máquina para o corte do tubo no comprimento desejado após recozido no forno. O tubo bimetálico 1 possui grandes vantagens frente aos tubos do estado da técnica, como por exemplo, méhpj:
^ Jij-
custo de obtenção que os tubos de cobre puro, sendo que sua resistência à corrosão é similar frente a um tubo de cobre puro.
Desta forma, todos os tubos de cobre puro
utilizados na área de refrigeração podem ser trocados pelo tubo, objeto da presente invenção, com substancial redução de custos para o consumidor final.
Obviamente será percebido que enquanto o acima foi descrito por forma de exemplo ilustrativo desta invenção, todas outras modificações e variações feitas à esta invenção, na forma que seria aparente aos especialistas na técnica, são consideradas dentro do amplo escopo e âmbito desta invenção conforme as reivindicações a seguir.

Claims (7)

1. "PROCESSO DA JUNÇÃO DO TUBO BIMETÁLICO ^CpM TERMINAIS DE COBRE E PRODUTO OBTIDO" caracterizado pelo fato de que possui as etapas de: - Provimento do tubo single wall de aço (3); - Provimento de bobina de tubo de cobre (2); - Endireitamento do tubo de cobre (2) e aço (3) , deixando retos e preparados para inserção do cobre no aço; - Inserção do tubo reto de cobre (2) , sobre o tubo de aço (3) para formação do tubo composto aço/cobre (1); - Trefila do tubo composto aço/cobre (1) para o diâmetro de tubo desejado; - Forno para recozimento do tubo composto, após trefila com velocidade e temperatura ajustada conforme dureza necessária do tubo composto aço/cobre (1); - Máquina para o corte do tubo no comprimento desejado após recozido no forno.
2. "PROCESSO" de acordo com a reivindicação 1, caracterizado pelo fato de que possui a etapa de retirada da região da capa de cobre da extremidade (4) .
3. "PROCESSO" de acordo com a reivindicação 2, caracterizado pelo efeito de junção com outra extremidade ser brasagem (5).
4. "PROCESSO" de acordo com a reivindicação 2, caracterizado pelo efeito de junção com outra extremidade ser um encaixe sem uso do calor (6).
5. "PRODUTO" caracterizado pelo fato de que é obtido pelo processo da reivindicação 1.
6. "PRODUTO" de acordo com a reivindicação*^ caracterizado pelo fato de que a região da capa de cobre da extremidade é retirada (4), para junção do tubo bimetálico aço/cobre com outro tubo.
7. "PRODUTO" de acordo com a reivindicação 6, caracterizado pelo fato de que é provido para ser utilizado em sistemas de refrigeração, ar condicionado, fogões e aplicações de transferência de líquidos e gases.
BRPI1002661-4A 2010-03-15 2010-03-15 processo da junção do tubo bimetálico com terminais de cobre e produto obtido BRPI1002661A2 (pt)

Priority Applications (4)

Application Number Priority Date Filing Date Title
BRPI1002661-4A BRPI1002661A2 (pt) 2010-03-15 2010-03-15 processo da junção do tubo bimetálico com terminais de cobre e produto obtido
EP11250298A EP2377627A1 (en) 2010-03-15 2011-03-11 A bimetallic tube, apparatus comprising such a tube and method of manufacturing an apparatus comprising a bimetallic tube
US13/046,188 US20110220237A1 (en) 2010-03-15 2011-03-11 Bimetallic tube
MX2011002751A MX2011002751A (es) 2010-03-15 2011-03-14 Un tubo bimetalico.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
BRPI1002661-4A BRPI1002661A2 (pt) 2010-03-15 2010-03-15 processo da junção do tubo bimetálico com terminais de cobre e produto obtido

Publications (1)

Publication Number Publication Date
BRPI1002661A2 true BRPI1002661A2 (pt) 2012-11-27

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BRPI1002661-4A BRPI1002661A2 (pt) 2010-03-15 2010-03-15 processo da junção do tubo bimetálico com terminais de cobre e produto obtido

Country Status (4)

Country Link
US (1) US20110220237A1 (pt)
EP (1) EP2377627A1 (pt)
BR (1) BRPI1002661A2 (pt)
MX (1) MX2011002751A (pt)

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US20110220237A1 (en) 2011-09-15
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