IT1133604B - Procedimento e dispositivo per la fabbricazione di valvole a saracinesca - Google Patents

Procedimento e dispositivo per la fabbricazione di valvole a saracinesca

Info

Publication number
IT1133604B
IT1133604B IT24730/80A IT2473080A IT1133604B IT 1133604 B IT1133604 B IT 1133604B IT 24730/80 A IT24730/80 A IT 24730/80A IT 2473080 A IT2473080 A IT 2473080A IT 1133604 B IT1133604 B IT 1133604B
Authority
IT
Italy
Prior art keywords
procedure
manufacture
gate valves
valves
gate
Prior art date
Application number
IT24730/80A
Other languages
English (en)
Other versions
IT8024730A0 (it
Inventor
Clemens Halene
Original Assignee
Mannesmann Ag
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 Mannesmann Ag filed Critical Mannesmann Ag
Publication of IT8024730A0 publication Critical patent/IT8024730A0/it
Application granted granted Critical
Publication of IT1133604B publication Critical patent/IT1133604B/it

Links

Classifications

    • 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
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • B21C37/298—Forming collars by flow-drilling
    • 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
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • 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
    • B21C37/28—Making tube fittings for connecting pipes, e.g. U-pieces
    • B21C37/29—Making branched pieces, e.g. T-pieces
    • B21C37/292—Forming collars by drawing or pushing a rigid forming tool through an opening in the tube wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21H—MAKING PARTICULAR METAL OBJECTS BY ROLLING, e.g. SCREWS, WHEELS, RINGS, BARRELS, BALLS
    • B21H1/00—Making articles shaped as bodies of revolution
    • B21H1/14—Making articles shaped as bodies of revolution balls, rollers, cone rollers, or like bodies
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21K—MAKING FORGED OR PRESSED METAL PRODUCTS, e.g. HORSE-SHOES, RIVETS, BOLTS OR WHEELS
    • B21K1/00—Making machine elements
    • B21K1/20—Making machine elements valve parts
    • B21K1/24—Making machine elements valve parts valve bodies; valve seats

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Forging (AREA)
  • Shaping Metal By Deep-Drawing, Or The Like (AREA)
  • Valve Housings (AREA)
IT24730/80A 1979-09-26 1980-09-17 Procedimento e dispositivo per la fabbricazione di valvole a saracinesca IT1133604B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792939390 DE2939390A1 (de) 1979-09-26 1979-09-26 Verfahren und vorrichtung zur herstellung geschmiedeter absperrschieber

Publications (2)

Publication Number Publication Date
IT8024730A0 IT8024730A0 (it) 1980-09-17
IT1133604B true IT1133604B (it) 1986-07-09

Family

ID=6082150

Family Applications (1)

Application Number Title Priority Date Filing Date
IT24730/80A IT1133604B (it) 1979-09-26 1980-09-17 Procedimento e dispositivo per la fabbricazione di valvole a saracinesca

Country Status (5)

Country Link
JP (1) JPS5647235A (it)
DE (1) DE2939390A1 (it)
FR (1) FR2473368A2 (it)
GB (1) GB2058631B (it)
IT (1) IT1133604B (it)

Also Published As

Publication number Publication date
DE2939390A1 (de) 1981-04-09
FR2473368A2 (fr) 1981-07-17
GB2058631A (en) 1981-04-15
JPS5647235A (en) 1981-04-28
IT8024730A0 (it) 1980-09-17
GB2058631B (en) 1983-03-16

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