FR2248888A1 - Tube prodn. sheet metal blanks on mills - using preliminary measurement of blanks to help eliminate wastage - Google Patents

Tube prodn. sheet metal blanks on mills - using preliminary measurement of blanks to help eliminate wastage

Info

Publication number
FR2248888A1
FR2248888A1 FR7338537A FR7338537A FR2248888A1 FR 2248888 A1 FR2248888 A1 FR 2248888A1 FR 7338537 A FR7338537 A FR 7338537A FR 7338537 A FR7338537 A FR 7338537A FR 2248888 A1 FR2248888 A1 FR 2248888A1
Authority
FR
France
Prior art keywords
blanks
sheet metal
pipes
mills
progression
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.)
Granted
Application number
FR7338537A
Other languages
French (fr)
Other versions
FR2248888B1 (en
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.)
ELEKTROSTALSKY Z TYAZHELOGO
Original Assignee
ELEKTROSTALSKY Z TYAZHELOGO
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 ELEKTROSTALSKY Z TYAZHELOGO filed Critical ELEKTROSTALSKY Z TYAZHELOGO
Priority to FR7338537A priority Critical patent/FR2248888A1/en
Publication of FR2248888A1 publication Critical patent/FR2248888A1/en
Application granted granted Critical
Publication of FR2248888B1 publication Critical patent/FR2248888B1/fr
Granted 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
    • B21C51/00—Measuring, gauging, indicating, counting, or marking devices specially adapted for use in the production or manipulation of material in accordance with subclasses B21B - B21F
    • 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
    • B21C37/083—Supply, or operations combined with supply, of strip material
    • 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
    • B21D43/00—Feeding, positioning or storing devices combined with, or arranged in, or specially adapted for use in connection with, apparatus for working or processing sheet metal, metal tubes or metal profiles; Associations therewith of cutting devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Arc Welding In General (AREA)

Abstract

Pipes a re-produced from sheet metal blanks on a mill by feeding the blanks in a progression following each other, measuring the length of each blank, leaving in the progression pairs of blanks whose differences in length is less than a preset value and removing unpaired blanks to storage where they will be paired up with other unpaired blanks in the progression. The edges of the blanks are then treated to form a half cylinder, the half cylinders are welded together to form pipes and the edges of the pipes are trimmed. There is a reduction in waste metal (trimmings) and the lengths of tubes produced from the same amount of metal can be extended. There is a saving in both floor space for laying the blanks separated out of the sequence and in time, needed to return them into sequence when compiling the pairs.
FR7338537A 1973-10-29 1973-10-29 Tube prodn. sheet metal blanks on mills - using preliminary measurement of blanks to help eliminate wastage Granted FR2248888A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7338537A FR2248888A1 (en) 1973-10-29 1973-10-29 Tube prodn. sheet metal blanks on mills - using preliminary measurement of blanks to help eliminate wastage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7338537A FR2248888A1 (en) 1973-10-29 1973-10-29 Tube prodn. sheet metal blanks on mills - using preliminary measurement of blanks to help eliminate wastage

Publications (2)

Publication Number Publication Date
FR2248888A1 true FR2248888A1 (en) 1975-05-23
FR2248888B1 FR2248888B1 (en) 1978-11-03

Family

ID=9127079

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7338537A Granted FR2248888A1 (en) 1973-10-29 1973-10-29 Tube prodn. sheet metal blanks on mills - using preliminary measurement of blanks to help eliminate wastage

Country Status (1)

Country Link
FR (1) FR2248888A1 (en)

Also Published As

Publication number Publication date
FR2248888B1 (en) 1978-11-03

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Legal Events

Date Code Title Description
ST Notification of lapse