LU54031A1 - - Google Patents

Info

Publication number
LU54031A1
LU54031A1 LU54031DA LU54031A1 LU 54031 A1 LU54031 A1 LU 54031A1 LU 54031D A LU54031D A LU 54031DA LU 54031 A1 LU54031 A1 LU 54031A1
Authority
LU
Luxembourg
Application number
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 filed Critical
Publication of LU54031A1 publication Critical patent/LU54031A1/xx

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
    • B21C37/22—Making finned or ribbed tubes by fixing strip or like material to tubes
    • B21C37/26—Making finned or ribbed tubes by fixing strip or like material to tubes helically-ribbed tubes
    • 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
    • B21D28/00—Shaping by press-cutting; Perforating
    • B21D28/02—Punching blanks or articles with or without obtaining scrap; Notching
    • B21D28/04—Centering the work; Positioning the tools
    • 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
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/34—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely
    • F28F1/36—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending obliquely the means being helically wound fins or wire spirals

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Geometry (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Milling Processes (AREA)
  • Shearing Machines (AREA)
LU54031D 1967-04-20 1967-07-05 LU54031A1 (enrdf_load_html_response)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR103504A FR1520065A (fr) 1967-04-20 1967-04-20 Procédé et appareillage pour créneler un ruban métallique destiné à être enroulé en hélice autour d'un tube

Publications (1)

Publication Number Publication Date
LU54031A1 true LU54031A1 (enrdf_load_html_response) 1967-09-05

Family

ID=8629286

Family Applications (1)

Application Number Title Priority Date Filing Date
LU54031D LU54031A1 (enrdf_load_html_response) 1967-04-20 1967-07-05

Country Status (7)

Country Link
BE (1) BE700764A (enrdf_load_html_response)
CH (1) CH473621A (enrdf_load_html_response)
ES (2) ES342724A1 (enrdf_load_html_response)
FR (1) FR1520065A (enrdf_load_html_response)
GB (1) GB1181128A (enrdf_load_html_response)
LU (1) LU54031A1 (enrdf_load_html_response)
NL (1) NL6709936A (enrdf_load_html_response)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2215276B1 (enrdf_load_html_response) * 1973-01-30 1975-10-31 Mazaleyrat Jacques
CH641982A5 (de) * 1978-06-15 1984-03-30 Schuler Gmbh L Stanzwerkzeug zum gleichzeitigen stanzen eines stator- und eines rotorbleches.
CN103639264A (zh) * 2013-11-26 2014-03-19 长沙仙达实业有限公司 冲缺冲模及冲削加工方法

Also Published As

Publication number Publication date
NL6709936A (enrdf_load_html_response) 1968-10-21
ES356768A1 (es) 1970-02-01
FR1520065A (fr) 1968-04-05
BE700764A (enrdf_load_html_response) 1967-12-01
CH473621A (fr) 1969-06-15
GB1181128A (en) 1970-02-11
ES342724A1 (es) 1968-12-16

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