GB359731A - Improvements in or relating to metal tubing and the manufacture of the same - Google Patents

Improvements in or relating to metal tubing and the manufacture of the same

Info

Publication number
GB359731A
GB359731A GB32726/30A GB3272630A GB359731A GB 359731 A GB359731 A GB 359731A GB 32726/30 A GB32726/30 A GB 32726/30A GB 3272630 A GB3272630 A GB 3272630A GB 359731 A GB359731 A GB 359731A
Authority
GB
United Kingdom
Prior art keywords
copper
tube
coating
detroit
michigan
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
GB32726/30A
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.)
Bundy Tubing Co
Original Assignee
Bundy Tubing Co
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 Bundy Tubing Co filed Critical Bundy Tubing Co
Publication of GB359731A publication Critical patent/GB359731A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06—Manufacture of metal sheets, bars, wire, tubes 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
    • B21C37/08—Making tubes with welded or soldered seams
    • B21C37/09—Making tubes with welded or soldered seams of coated strip material ; Making multi-wall tubes
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/84—Controlled slow cooling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Heat Treatment Of Articles (AREA)

Abstract

359,731. Coating with metals. BUNDY TUBING CO., 4815, Bellevue Avenue, Detroit, Michigan, U.S.A.-(Assignees of Bundy, H. W.; 4815, Bellevue Avenue, Detroit, Michigan, U.S.A.) Oct. 31, 1930, No. 32726. Convention date, Oct. 31, 1929. [Class 82 (ii).] Metal tubing is formed continuously from flat steel stock 1 with a bonded coating of copper or a copper alloy on one or both sides by passing the stock first through dies or, as shown, through rolls 3 which form the tubular cross-section, whereafter it passes through the heating chamber 6 of a furnace raised to a temperature of 2100‹ F. by electrical elements 5 so that the copper coating is melted, whereby the seam is brazed and the tube is coated continuously with copper either internally, externally or both. The tube then passes through the cooling chamber 14 of a vessel 10 through which cold water is circulated under control so as to prevent chilling of the copper, and finally to a water spray 15 which is also controlled so as to give desired hardness characteristics to the steel. Both the heating and cooling chambers are supplied with a reducing atmosphere such as hydrogen through a pipe 17. The tube may be single-ply with a butt or lap joint or with a lock seam. Alternatively, the tube may be two-ply formed from a single sheet rolled through 720‹. The coating may be 0À00075-0À002 ins. thick and may be of pure copper or of a copper base alloy such as silver solder containing silver and a small quantity of zinc. Specification 347,723 is referred to.
GB32726/30A 1929-10-31 1930-10-31 Improvements in or relating to metal tubing and the manufacture of the same Expired GB359731A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US359731XA 1929-10-31 1929-10-31

Publications (1)

Publication Number Publication Date
GB359731A true GB359731A (en) 1931-10-29

Family

ID=21885856

Family Applications (1)

Application Number Title Priority Date Filing Date
GB32726/30A Expired GB359731A (en) 1929-10-31 1930-10-31 Improvements in or relating to metal tubing and the manufacture of the same

Country Status (1)

Country Link
GB (1) GB359731A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398115A1 (en) * 1977-07-21 1979-02-16 Honda Motor Co Ltd THERMAL TREATMENT OF A STEEL MATERIAL SUCH AS MILD OR SIMILAR STEEL AND APPARATUS FOR ITS IMPLEMENTATION
US5297587A (en) * 1990-05-18 1994-03-29 Itt Corporation Sealed double wall steel tubing having steel outer surface
US5447179A (en) * 1990-05-18 1995-09-05 Itt Corporation Non-corrosive double-walled steel tube characterized in that the steel has a face-centered cubic grain structure
US5553640A (en) * 1992-06-27 1996-09-10 Hille & Muller Stainless steel strip plated with brazing alloy for multilayer tube manufacturing
US5845837A (en) * 1995-12-28 1998-12-08 Itt Automotive, Inc. Polymer-based material for carbon deposition during brazing operations

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2398115A1 (en) * 1977-07-21 1979-02-16 Honda Motor Co Ltd THERMAL TREATMENT OF A STEEL MATERIAL SUCH AS MILD OR SIMILAR STEEL AND APPARATUS FOR ITS IMPLEMENTATION
US5297587A (en) * 1990-05-18 1994-03-29 Itt Corporation Sealed double wall steel tubing having steel outer surface
US5447179A (en) * 1990-05-18 1995-09-05 Itt Corporation Non-corrosive double-walled steel tube characterized in that the steel has a face-centered cubic grain structure
US5553640A (en) * 1992-06-27 1996-09-10 Hille & Muller Stainless steel strip plated with brazing alloy for multilayer tube manufacturing
US5845837A (en) * 1995-12-28 1998-12-08 Itt Automotive, Inc. Polymer-based material for carbon deposition during brazing operations

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