KR860001623A - Method and apparatus for corrugating metal tubes and electrical energy cables produced thereby - Google Patents

Method and apparatus for corrugating metal tubes and electrical energy cables produced thereby Download PDF

Info

Publication number
KR860001623A
KR860001623A KR1019850006081A KR850006081A KR860001623A KR 860001623 A KR860001623 A KR 860001623A KR 1019850006081 A KR1019850006081 A KR 1019850006081A KR 850006081 A KR850006081 A KR 850006081A KR 860001623 A KR860001623 A KR 860001623A
Authority
KR
South Korea
Prior art keywords
tube
corrugator
corrugated
cable
metal
Prior art date
Application number
KR1019850006081A
Other languages
Korean (ko)
Other versions
KR910000217B1 (en
Inventor
하르트 치메크 게르 (외 4)
Original Assignee
에버하르트멘데, 라이머 쾨스터
카벨메탈 엘렉트로 게젤샤프트 미트 베슈렝크터 하프퉁
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
Priority claimed from DE3431120A external-priority patent/DE3431120C2/en
Priority claimed from DE19843436517 external-priority patent/DE3436517A1/en
Priority claimed from DE19843436516 external-priority patent/DE3436516A1/en
Application filed by 에버하르트멘데, 라이머 쾨스터, 카벨메탈 엘렉트로 게젤샤프트 미트 베슈렝크터 하프퉁 filed Critical 에버하르트멘데, 라이머 쾨스터
Publication of KR860001623A publication Critical patent/KR860001623A/en
Application granted granted Critical
Publication of KR910000217B1 publication Critical patent/KR910000217B1/en

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D15/00Corrugating tubes
    • B21D15/04Corrugating tubes transversely, e.g. helically
    • B21D15/06Corrugating tubes transversely, e.g. helically annularly
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21DWORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21D15/00Corrugating tubes
    • B21D15/04Corrugating tubes transversely, e.g. helically
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21CMANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
    • B21C37/00Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
    • B21C37/06Manufacture 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
    • B21C37/15Making tubes of special shape; Making tube fittings
    • B21C37/20Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls
    • B21C37/207Making helical or similar guides in or on tubes without removing material, e.g. by drawing same over mandrels, by pushing same through dies ; Making tubes with angled walls, ribbed tubes and tubes with decorated walls with helical guides
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/04Flexible cables, conductors, or cords, e.g. trailing cables
    • H01B7/046Flexible cables, conductors, or cords, e.g. trailing cables attached to objects sunk in bore holes, e.g. well drilling means, well pumps
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/08Flat or ribbon cables
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/182Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments
    • H01B7/183Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring comprising synthetic filaments forming part of an outer sheath
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01BCABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B7/00Insulated conductors or cables characterised by their form
    • H01B7/17Protection against damage caused by external factors, e.g. sheaths or armouring
    • H01B7/18Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
    • H01B7/22Metal wires or tapes, e.g. made of steel
    • H01B7/228Metal braid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Insulated Conductors (AREA)
  • Pressure Welding/Diffusion-Bonding (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
  • Manufacture And Refinement Of Metals (AREA)

Abstract

내용 없음No content

Description

금속관을 코루게이팅하는 방법 및 장치와 이에 의해 제조되는 전기 에너지 케이블Method and apparatus for corrugating metal tubes and electrical energy cables produced thereby

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제1도는 형성되어야할 금속스트립(2)이 인출된 코일을 도시한 도면.1 shows a coil from which a metal strip 2 to be formed is drawn out.

제2도는 코루게이트된 관(7)만을 개략적으로 도시한 도면.2 shows schematically only the corrugated pipe 7.

제3도는 제2도의 선 A-A를 따라 취해진 단면도.3 is a sectional view taken along the line A-A of FIG.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

2 : 스트립, 4 : 용접장치, 5 : 공급기, 6 : 코루게이터헤트, 7,25,34 : 코루게이트된관, 8 : 회전공구, 9 : 통상의 케이블 드럼, 10 : 로울러 베어링, 11a,11b,1c : 고정안내부시, 12 : 머시인 케이싱, 13 : 코루게이터디스크, 14 : 환형부시, 15 : 보올베어링, 16 : 플랜지형부분, 18 : 부시, 19 : 거친링, 21,31 : 전기도체, 23,32,33 : 절연층, 26 : 금속브레이드, 27,35 : 외장피복2: strip, 4: welding apparatus, 5: feeder, 6: corrugator head, 7,25, 34: corrugated pipe, 8: rotary tool, 9: normal cable drum, 10: roller bearing, 11a, 11b 1c: fixed guide bush, 12: machine casing, 13: corrugator disk, 14: annular bushing, 15: bowl bearing, 16: flanged part, 18: bush, 19: rough ring, 21, 31: electric conductor , 23,32,33: insulating layer, 26: metal braid, 27,35: outer coating

Claims (25)

매끄러운관, 특히 세로방향의 용접된 시임을 가진 매끄러운관이 부시를 통해 연속동작으로 제공되며, 코루게이팅공구가 상기 부시뒤에서 상기 매끄러운관상에 직접 작용하고, 상기 코루게이팅 공구내에서 매끄러운관의 직경보다 더 큰 개구를 가진 코루게이터 디스크가 지지되고, 이러한 코루게이터 디스크가 회전식으로 구동될 수 있는 코루게이트헤드내에서 자유롭게 회전될 수 있도록 편심적으로 지지되는 금속관을 코루게이터하기 위한 방법에 있어서, 상기 코루게이트된 관이 코루게이터 디스크의 작용점 위치를 향하여 제조방향으로부터 편향되는 것을 특징으로 하는 금속관을 코루게이팅하는 방법.A smooth tube, in particular a smooth tube with longitudinally welded seams, is provided in a continuous motion through the bush, the corrugating tool acting directly on the smooth tube behind the bush, and in the corrugating tool than the diameter of the smooth tube. A method for corrugating a metal tube supported by a corrugator disk having a larger opening and eccentrically supported such that the corrugator disk can be freely rotated in a corrugated head that can be rotatably driven. A method for corrugating a metal tube, characterized in that the gated tube is deflected from the manufacturing direction towards the point of action point of the corrugator disc. 제1항에 있어서, 코루게이터 디스크의 순간 작용위치에 대한 반대편측상의 코루게이트된 관에 힘이 작용하는 것을 특징으로 하는 방법.The method of claim 1, wherein a force acts on the corrugated tube on the opposite side to the momentary acting position of the corrugator disk. 제1항 또는 제2항에 있어서, 적어도 0.5D 바람직하기로는 0.8D (D는 매끄러운 관의 외부 직경임)의 거리 a에서 코루게이트된 관에 힘이 작용하는 것을 특징으로 하는 방법.Method according to claim 1 or 2, characterized in that the force acts on the corrugated tube at a distance a of at least 0.5D, preferably 0.8D (D is the outer diameter of the smooth tube). 제1항 내지 제3항중 어느 한 항에 있어서, 코루게이트된 관이 제조방향으로부터 편향되는 편심률 e가 e/a를 1 보다 더 작게, 바람직하기로는 0.2보다 더 작게 하는 법칙을 만족시키는 것을 특징으로 하는 방법.The method according to any one of claims 1 to 3, characterized in that the eccentricity e, in which the corrugated pipe is deflected from the manufacturing direction, satisfies the law of making e / a smaller than 1, preferably smaller than 0.2. How to. 제1항 내지 제4항중 어느 한 항에 있어서, 주변방향에서 알 수 있는 편향력의 작용점의 최대편차가 ±30°인 것을 특징으로 하는 방법.The method according to any one of claims 1 to 4, wherein the maximum deviation of the operating points of the deflection force known in the peripheral direction is ± 30 °. 제1항 내지 제5항중 어느 한 항에 있어서, 편향력의 작용점(코루게이터 디스크의 회전 방향에서 알 수 있는 바와같이)이 구리와 같은 "소프트물질"의 경우 180°이하에서 설정되고, 강철, 스테인레스강 등과 같은 "하아드 물질"의 경우에 180°이상에서 설정되는 것을 특징으로 하는 방법.The method of claim 1, wherein the point of action of the biasing force (as seen in the direction of rotation of the corrugator disc) is set at 180 ° or less for a “soft material” such as copper, steel, And at least 180 ° in the case of "hard materials" such as stainless steel. 매끄러운관을 지지하는 견고하게 설비된 부시와, 관의 제조방향에서 알 수 있는 바와같이 상기 부시 뒤에서 매끄러운관에 작용하며 회전식으로 구동되는 코루게이터 헤드로 이루어진 회전 코루게이팅공구와, 자유롭게 회전가능하고 편심적으로 지지되도록 배치된 코루게이터디스크를 구비하여 금속관을 코루게이팅하는 방법을 수행하기 위한 장치에 있어서, 상기 공구(8)가 코루게이터헤드(6)뒤에 제공되어 코루게이터헤드(6)와 동일한 속도로 회전시키며 코루게이트된 관(7)에 작용하여 상기 코루게이트된 관(7)을 편향시키는 것을 특징으로 하는 금속관을 코루게이팅하는 장치.Rotating corrugation tool consisting of a firmly equipped bush supporting a smooth tube, a corrugator head driven on the smooth tube behind the bush and being rotatably driven as shown in the manufacturing direction of the tube, freely rotatable and flat In an apparatus for carrying out a method of corrugating a metal tube with a corrugator disc arranged to be supported in a core, the tool (8) is provided behind the corrugator head (6) at the same speed as the corrugator head (6). Apparatus for corrugating a metal tube, characterized in that it acts on the corrugated tube (7) and deflects the corrugated tube (7). 제7항에 있어서, 상기 공구(8)가 코루게이터헤드에 고착되는 것을 특징으로 하는 장치.8. Device according to claim 7, characterized in that the tool (8) is fixed to the corrugator head. 제7항 또는 제8항에 있어서, 상기 공구(8,18)가 링형인 것을 특징으로 하는 장치.Device according to claim 7 or 8, characterized in that the tool (8,18) is ring shaped. 제9항에 있어서, 상기 링(18)이 코루게이터 헤드(6)에 부착된 플랜형부분(16)내에서 자유롭게 회전가능하도록 지지되는 것을 특징으로 하는 장치.10. The device according to claim 9, characterized in that the ring (18) is supported freely rotatable in a planar portion (16) attached to the corrugator head (6). 제7항 내지 제10항중 어느 한항에 있어서, 공구(8)가 주변방향 및 반경방향에서 분리가능하도록 코루게이터 헤드(6)에 고착되는 것을 특징으로 하는 장치.Device according to one of the claims 7 to 10, characterized in that the tool (8) is fixed to the corrugator head (6) so as to be separable in the peripheral and radial directions. 제7항 내지 제11항중 어느 한항에 있어서, 부시(11a)가 세로축방향에서 조정될 수 있는 것을 특징으로 하는 장치.12. An apparatus according to any one of claims 7 to 11, characterized in that the bush (11a) can be adjusted in the longitudinal axis direction. 예컨대, 펌프내에서 다발로 설비된 도체가 코루게이트된 금속관내에 배치되게 제조된 다중코어 전기 에너지 케이블, 특히 관통구멍장비를 위한 공급케이블에 있어서, 코루게이션심도 및 코루게이션피치에 의한 관(34)의 코루게이션이 매끄러운 관으로 부터 제조되는 코루게이트된 관(4)의 길이를 33%내지 67%사이, 바람직하기로는 45%내지 55%사이(제7도 및 제8도)로 더 짧게 되도록 설계된 것을 특징으로 하는 전기 에너지 케이블.For example, in multicore electrical energy cables, in particular feed cables for through-hole equipment, in which the conductors bundled in a pump are arranged in a corrugated metal tube, the pipes by the corrugation depth and the corrugation pitch 34 So that the length of the corrugated tube 4 produced from the smooth tube is shorter between 33% and 67%, preferably between 45% and 55% (FIGS. 7 and 8). Electrical energy cable, characterized in that designed. 예컨대, 펌프내에서 나란히 놓인 코어가 폐쇄된 금속엔벨로우프에 의해 각각 개별적으로 보호되게 제조된 다중코어 전기에너지 케이블, 특히 관통구멍 장비를 위한 공급케이블에 있어서, 코루게이션심도 및 코루게이션피치에 의한 관(25)의 코루게이션이 매끄러운 관으로부터 제조되는 코루게이트된 관(25)의 길이를 33%내지 67%사이, 바람직하기로는 45%내지 55%사이(제5도 및 제6도)사이로 더 짧게 되도록 설계된 것을 특징으로 하는 전기에너지 케이블.For example, in multicore electrical energy cables, in particular feed cables for through-hole equipment, in which the cores placed side by side in the pump are each individually protected by a closed metal envelope, by means of the corrugation depth and the corrugation pitch The length of the corrugated tube 25, from which the corrugation of the tube 25 is made from a smooth tube, is further between 33% and 67%, preferably between 45% and 55% (FIGS. 5 and 6). Electrical energy cable, characterized in that designed to be short. 제13항 또는 제14항에 있어서, 외장피복(26,27,35)가 각각 코루게이트된 관(25,35)상에 배치된 것을 특징으로 하는 케이블.15. Cable according to claim 13 or 14, characterized in that the sheathings (26, 27, 35) are arranged on the corrugated tubes (25, 35) respectively. 제13항 내지 제15항중 어느 한항에 있어서, 벽두께에 대한 관외부직경의 비가 60내지 125사이에 있고, 벽두께에 대한 코루게이션심도의 비가 8내지 25사이에 있는 것을 특징으로 하는 케이블.The cable according to any one of claims 13 to 15, wherein the ratio of the outer diameter to the wall thickness is between 60 and 125, and the ratio of the corrugation depth to the wall thickness is between 8 and 25. 제13항 내지 제16항중 어느 한항에 있어서, 상기 코루게이트 된 관(25,34)이 2중벽으로 설계된 것을 특징으로 하는 케이블.Cable according to one of the claims 13 to 16, characterized in that the corrugated pipe (25, 34) is designed with double walls. 제13항 내지 제17항중 어느 한항에 있어서, 상기 외장피복(26,27,35)이 나선형으로 인가된 다수의 고강도 와이어인 것을 특징으로 하는 케이블.18. Cable according to any one of claims 13 to 17, characterized in that the sheathing (26, 27, 35) is a plurality of high strength wires spirally applied. 제18항에 있어서, 상기 와이어가 2D 및 6D사이(여기서 D는 코루게이트 된 관(25,34)의 외부직경임의 꼬임길이로서 인가되는 것을 특징으로 하는 케이블.19. The cable according to claim 18, wherein the wire is applied as a twist length of the outer diameter of the corrugated tube (25,34) between 2D and 6D. 제13항 내지 제17항중 어느 한항에 있어서, 교번꼬임방향을 갖는 다수의 고강도 와이어가 관(25,34)에 인가되며 적어도 하나의 고강도와이어나 혹은 짧은 꼬임길이를 가진 고강도스트립에 의해 호울드되고 그리고 높은 압축응력으로 인가되는 것을 특징으로 하는 케이블.18. A method according to any one of claims 13 to 17, wherein a plurality of high strength wires with alternating twist directions are applied to the tubes 25 and 34 and are honed by at least one high strength wire or a high strength strip having a short twist length. And a cable applied with a high compressive stress. 제13항 내지 제17항중 어느 한항에 있어서, 상기 외장피복(27,35)이 나선형으로 인가되고 중첩스트립에지를 갖는 금속 스트립을 이루어지고, 이 메탈 스트립이 단면에서 알 수 있는 바와같이 이것의 스트립에지를 중첩 영역에 맞물리도록 형성되는 것을 특징으로 하는 케이블.18. The strip according to any one of claims 13 to 17, wherein the sheathings 27 and 35 are helically applied and constitute a metal strip with overlapping strip edges, the metal strip of which as can be seen in cross section. A cable configured to engage the edge with the overlapping area. 제13항 내지 제21항중 어느 한항에 있어서, 상기 금속관(25,34)가 외장피복(26,27,35)이 동일물질, 바람직하게는 오스테니틱강으로 구성되는 것을 특징으로 하는 케이블.22. Cable according to one of the claims 13 to 21, characterized in that the metal tubes (25, 34) are made of the same material, preferably austenitic steel, of the outer sheath (26, 27, 35). 제13항 내지 제22항중 어느 한항에 있어서, 각각의 코루게이트된 관이 금속와이어, 바람직하게는 스테인레스강으로된 브레이드(26)를 운송하는 것을 특징으로 하는 케이블.23. Cable according to one of the claims 13 to 22, characterized in that each corrugated tube carries a braid (26) of metal wire, preferably stainless steel. 제13항 내지 제23항중 어느 한항에 있어서, 상기 코루게이트된 관(25)이 코어의 절연물질(24)에 견고하게 놓이는 것을 특징으로 하는 케이블.24. Cable according to any one of claims 13 to 23, characterized in that the corrugated pipe (25) is firmly laid on the insulating material (24) of the core. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019850006081A 1984-08-24 1985-08-23 Method and apparatus for the corrugating of metal tubes KR910000217B1 (en)

Applications Claiming Priority (9)

Application Number Priority Date Filing Date Title
DE?3431120.3 1984-08-24
DE3431120A DE3431120C2 (en) 1984-08-24 1984-08-24 Method and device for corrugating metal pipes
DE3431123.3 1984-08-24
DE3436516.8 1984-10-05
DE3436517.6 1984-10-05
DE?3436516.8 1984-10-05
DE?3436517.6 1984-10-05
DE19843436517 DE3436517A1 (en) 1984-10-05 1984-10-05 Multi-core electrical power cable, especially a supply cable for drilling units
DE19843436516 DE3436516A1 (en) 1984-10-05 1984-10-05 MULTI-WIRE ELECTRIC POWER CABLE, IN PARTICULAR SUPPLY CABLE FOR HOLE HOLE UNITS

Publications (2)

Publication Number Publication Date
KR860001623A true KR860001623A (en) 1986-03-20
KR910000217B1 KR910000217B1 (en) 1991-01-23

Family

ID=27192277

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019850006081A KR910000217B1 (en) 1984-08-24 1985-08-23 Method and apparatus for the corrugating of metal tubes

Country Status (10)

Country Link
KR (1) KR910000217B1 (en)
AU (1) AU574786B2 (en)
CH (1) CH675084A5 (en)
DK (1) DK161570C (en)
FI (1) FI84234C (en)
FR (1) FR2569357B1 (en)
GB (1) GB2163373B (en)
IT (1) IT1185270B (en)
NL (1) NL8502331A (en)
NO (1) NO163885C (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5760334A (en) * 1996-07-24 1998-06-02 Alcatel Kabel Ag & Co. Metallic sheath for an electric cable and method of making the same
CA2307488C (en) * 1999-05-05 2004-07-13 Maurice William Slack Corrugated thick-walled pipe for use in wellbores
KR100382285B1 (en) * 2002-03-20 2003-05-09 Buyng Sang Cho Method of fabricating flexible wire tube for protecting cable
EP2329896B1 (en) * 2009-12-04 2012-02-08 Nexans Device for continuous corrugation of a metallic tube

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB332870A (en) * 1929-01-18 1930-07-31 Meyer Keller & Cie Ag O Process and apparatus for the manufacture of corrugated tubes
GB791514A (en) * 1954-02-01 1958-03-05 Gen Electric Co Ltd Improvements in or relating to machines and methods for corrugating tubes
GB1108618A (en) * 1965-06-01 1968-04-03 Upright Products Ltd Improvements in or relating to methods of and apparatus for shaping metal tubing
DE1916357A1 (en) * 1969-03-29 1971-06-16 Kabel Metallwerke Ghh Device for the continuous production of tubes with annular shape corrugation
DE1939402B2 (en) * 1969-08-02 1970-12-03 Felten & Guilleaume Kabelwerk Method and device for corrugating pipe walls
DE2011271A1 (en) * 1970-03-04 1971-09-23 Universal Metal Hose Co Helically corrugated tube forming machine
DE2126943A1 (en) * 1971-05-29 1972-11-30 Wieland Werke Ag Device for forming helical ribs on tubular workpieces
DE2853100A1 (en) * 1978-12-08 1980-06-19 Kabel Metallwerke Ghh Multicore power cable for immersion pumps - has tubular sheath of welded thin metal strip with tube dia. to wall thickness ratio between 18 and 35
YU42981A (en) * 1980-08-02 1983-09-30 Kabel Metallwerke Ghh Device for transforming even tubes to wave-shaped tubes

Also Published As

Publication number Publication date
GB2163373B (en) 1988-03-02
AU574786B2 (en) 1988-07-14
CH675084A5 (en) 1990-08-31
DK383385D0 (en) 1985-08-23
DK161570B (en) 1991-07-22
DK383385A (en) 1986-02-25
GB2163373A (en) 1986-02-26
NO163885B (en) 1990-04-30
NO163885C (en) 1990-08-08
AU4331185A (en) 1986-02-27
KR910000217B1 (en) 1991-01-23
FI853251A0 (en) 1985-08-23
GB8521209D0 (en) 1985-10-02
FR2569357A1 (en) 1986-02-28
FI84234C (en) 1991-11-11
NL8502331A (en) 1986-03-17
FI853251L (en) 1986-02-25
FI84234B (en) 1991-07-31
FR2569357B1 (en) 1989-01-20
DK161570C (en) 1992-01-27
IT1185270B (en) 1987-11-04
NO853326L (en) 1986-02-25
IT8521593A0 (en) 1985-07-17

Similar Documents

Publication Publication Date Title
US4232935A (en) Communications cable with optical waveguides
US5760334A (en) Metallic sheath for an electric cable and method of making the same
CN85103995A (en) The ripple forming method of metal tube and equipment and the power cable of making according to the method
US3474189A (en) Electric power cable
CA2020560A1 (en) Stranded electric conductor manufacture
US4674543A (en) Tube having an armoring consisting of a plurality of wires
US5732875A (en) Method for producing a sector conductor for electric power cables
US2817363A (en) Corrugated aluminium tube and electric cable employing the same as a sheath
US1943086A (en) Electrical cable and method of manufacture
KR860001623A (en) Method and apparatus for corrugating metal tubes and electrical energy cables produced thereby
US3130754A (en) Push-pull cable casings
US2018477A (en) Coaxial conductor system
US4315099A (en) Flexible transmission line for a fluid and for electric signals
CA2043084C (en) Cable conduit with ridged inner wall
US3823542A (en) Method of making compact conductor
US3728474A (en) Shielded power cable
CA2128166A1 (en) Process for producing corrugated tube and product produced thereby
US20210118592A1 (en) Armoured power cable
US2787651A (en) Electric cable system
JPS6188925A (en) Method and device for corrugating and processing metallic pipe and electric energy cable manufactured by said method
US5355669A (en) Apparatus and method for simultaneous reverse stranding and longitudinal strip winding of cables
CN218100764U (en) Waterproof and moistureproof sheath cable
US20080210358A1 (en) Method for Producing a Lead
US2731510A (en) Overhead electric lines and conductors therefor
JP3179357B2 (en) Flexible tube

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
G160 Decision to publish patent application
E701 Decision to grant or registration of patent right
GRNT Written decision to grant
FPAY Annual fee payment

Payment date: 20030109

Year of fee payment: 13

LAPS Lapse due to unpaid annual fee