IT1200795B - Cathodic protection system - Google Patents

Cathodic protection system

Info

Publication number
IT1200795B
IT1200795B IT22511/85A IT2251185A IT1200795B IT 1200795 B IT1200795 B IT 1200795B IT 22511/85 A IT22511/85 A IT 22511/85A IT 2251185 A IT2251185 A IT 2251185A IT 1200795 B IT1200795 B IT 1200795B
Authority
IT
Italy
Prior art keywords
coils
barrel
housings
clamped
extruder barrel
Prior art date
Application number
IT22511/85A
Other languages
Italian (it)
Other versions
IT8522511A0 (en
Inventor
Giuseppe Gianchi
Bruno Bazzoni
Original Assignee
Oronzio De Nora Sa
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 Oronzio De Nora Sa filed Critical Oronzio De Nora Sa
Priority to IT22511/85A priority Critical patent/IT1200795B/en
Publication of IT8522511A0 publication Critical patent/IT8522511A0/en
Application granted granted Critical
Publication of IT1200795B publication Critical patent/IT1200795B/en

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  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

An induction heating appts. for plastics extruders employs induction coils with E-shaped cores. The coils are mounted in a 2-piece housing which is clamped on the extruder barrel by spring tension. The extruder barrel (1) is heated by induction coils (2,2a,3,3a) in which the coil is wound on the central arm (4,4a,5,5a) of an E-shaped laminated iron core. The coils are magnetically coupled to the barrel by an interlayer (6,6a,7,7a) which covers the core. Pairs of coils are mounted in a 2-piece housing (8,9) which is assembled and clamped on the barrel (1) periphery by means of threaded pins (13), carrying washers (15) and nuts (16,17). Disc spring stacks (14) are interposed between the washers (15) and housings (8,9), so that the housings and coils are urged into contact with the barrel by spring pressure. In another embodiment, the appts. may be adapted to a cylindrical extruder barrel.
IT22511/85A 1985-10-16 1985-10-16 Cathodic protection system IT1200795B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT22511/85A IT1200795B (en) 1985-10-16 1985-10-16 Cathodic protection system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT22511/85A IT1200795B (en) 1985-10-16 1985-10-16 Cathodic protection system

Publications (2)

Publication Number Publication Date
IT8522511A0 IT8522511A0 (en) 1985-10-16
IT1200795B true IT1200795B (en) 1989-01-27

Family

ID=11197251

Family Applications (1)

Application Number Title Priority Date Filing Date
IT22511/85A IT1200795B (en) 1985-10-16 1985-10-16 Cathodic protection system

Country Status (1)

Country Link
IT (1) IT1200795B (en)

Also Published As

Publication number Publication date
IT8522511A0 (en) 1985-10-16

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19951027