GB873194A - Travelling-wave tube field-straightener assembly - Google Patents

Travelling-wave tube field-straightener assembly

Info

Publication number
GB873194A
GB873194A GB832660A GB832660A GB873194A GB 873194 A GB873194 A GB 873194A GB 832660 A GB832660 A GB 832660A GB 832660 A GB832660 A GB 832660A GB 873194 A GB873194 A GB 873194A
Authority
GB
United Kingdom
Prior art keywords
discs
assembly
mandrel
rings
copper
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
GB832660A
Inventor
Leslie James Collins
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.)
Philips Components Ltd
Original Assignee
Mullard Ltd
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 Mullard Ltd filed Critical Mullard Ltd
Priority to GB832660A priority Critical patent/GB873194A/en
Publication of GB873194A publication Critical patent/GB873194A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J23/00—Details of transit-time tubes of the types covered by group H01J25/00
    • H01J23/02—Electrodes; Magnetic control means; Screens
    • H01J23/08—Focusing arrangements, e.g. for concentrating stream of electrons, for preventing spreading of stream
    • H01J23/087—Magnetic focusing arrangements
    • H01J23/0876—Magnetic focusing arrangements with arrangements improving the linearity and homogeniety of the axial field, e.g. field straightener

Landscapes

  • Pressure Welding/Diffusion-Bonding (AREA)

Abstract

873,194. Making electrical components; welding by pressure. MULLARD Ltd. March 9, 1960, No. 8326/60. Classes 83 (2) and 83 (4). In making a field straightener assembly for a travelling-wave tube, an interleaved series of clean oxide-free copper and ferromagnetic magnetically soft alloy annular discs is arranged on a cylinderical mandrel and retained thereon between end-stops, the mandrel and discs are heated to 900-1060‹ C. in a reducing atmosphere, the mandrel and discs are allowed to cool and the assembly of cohered discs is removed from the mandrel. The larger oxide-free copper discs A and smaller clean ferromagnetic magnetically soft alloy discs B are clamped on a steel bolt C between the bolt-head E and a bush F and the assembly is heated in hydrogen to about 1000‹ C. so that the rings expand and increase the pressure between them to effect bonding of the rings believed to be by diffusion of the copper into the ferromagnetic discs. The assembly is slowly cooled, the ring assembly is removed and the outer peripheries of the copper rings are trimmed in a lathe and lie on a cylindrical surface. Specification 845,000 is referred to.
GB832660A 1960-03-09 1960-03-09 Travelling-wave tube field-straightener assembly Expired GB873194A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB832660A GB873194A (en) 1960-03-09 1960-03-09 Travelling-wave tube field-straightener assembly

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB832660A GB873194A (en) 1960-03-09 1960-03-09 Travelling-wave tube field-straightener assembly

Publications (1)

Publication Number Publication Date
GB873194A true GB873194A (en) 1961-07-19

Family

ID=9850390

Family Applications (1)

Application Number Title Priority Date Filing Date
GB832660A Expired GB873194A (en) 1960-03-09 1960-03-09 Travelling-wave tube field-straightener assembly

Country Status (1)

Country Link
GB (1) GB873194A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2545645A1 (en) * 1983-05-03 1984-11-09 Thomson Csf Method of manufacturing a sheath segment said to have incorporated pole pieces for microwave tubes
CN105032979A (en) * 2015-08-24 2015-11-11 北京星航机电装备有限公司 Machining method and device for multi-layer membrane structure corrugated pipe

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2545645A1 (en) * 1983-05-03 1984-11-09 Thomson Csf Method of manufacturing a sheath segment said to have incorporated pole pieces for microwave tubes
CN105032979A (en) * 2015-08-24 2015-11-11 北京星航机电装备有限公司 Machining method and device for multi-layer membrane structure corrugated pipe
CN105032979B (en) * 2015-08-24 2017-06-20 北京星航机电装备有限公司 The processing method and device of a kind of multi-layer diaphragm structure bellows

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