ES340706A1 - Treating Stainless Chrome-Nickel Steel Surfaces of Tubular Electrical Heaters - Google Patents

Treating Stainless Chrome-Nickel Steel Surfaces of Tubular Electrical Heaters

Info

Publication number
ES340706A1
ES340706A1 ES340706A ES340706A ES340706A1 ES 340706 A1 ES340706 A1 ES 340706A1 ES 340706 A ES340706 A ES 340706A ES 340706 A ES340706 A ES 340706A ES 340706 A1 ES340706 A1 ES 340706A1
Authority
ES
Spain
Prior art keywords
nickel
steel surfaces
nickel steel
electrical heaters
tubular electrical
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
ES340706A
Other languages
Spanish (es)
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.)
ELPAG AG CHUR
Original Assignee
ELPAG AG CHUR
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 ELPAG AG CHUR filed Critical ELPAG AG CHUR
Publication of ES340706A1 publication Critical patent/ES340706A1/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/78—Heating arrangements specially adapted for immersion heating
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C10/00—Solid state diffusion of only metal elements or silicon into metallic material surfaces
    • C23C10/28—Solid state diffusion of only metal elements or silicon into metallic material surfaces using solids, e.g. powders, pastes
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C30/00—Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/04—Tubes; Rings; Hollow bodies

Abstract

A metal-sheathed electric resistance heating element comprises a heating resistor 9, a body of refractory electrically insulating materia 10 and a stainless steel sheath 8 with a layer 11 of nickel on its outer surface. Preferably the insulating material is a ceramic, the sheathed element is U-shaped and the nickel layer is applied by electroplating, by dipping or by spraying. After deposition of the nickel, which is 1-20 microns thick, the sheath may be heat-treated to cause part of the nickel to diffuse into the stainless steel. The nickel layer is stated to reduce stress corrosion when the heater is used in an aqueous medium containing chloride ions.
ES340706A 1966-05-18 1967-05-18 Treating Stainless Chrome-Nickel Steel Surfaces of Tubular Electrical Heaters Expired ES340706A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR62013A FR1480060A (en) 1966-05-18 1966-05-18 Method to prevent stress line corrosion for chrome-nickel stainless steel objects

Publications (1)

Publication Number Publication Date
ES340706A1 true ES340706A1 (en) 1968-06-16

Family

ID=8608907

Family Applications (1)

Application Number Title Priority Date Filing Date
ES340706A Expired ES340706A1 (en) 1966-05-18 1967-05-18 Treating Stainless Chrome-Nickel Steel Surfaces of Tubular Electrical Heaters

Country Status (11)

Country Link
AT (1) AT275261B (en)
BE (1) BE697036A (en)
CH (1) CH492804A (en)
CS (1) CS166218B2 (en)
DE (2) DE1621451C3 (en)
DK (1) DK129662B (en)
ES (1) ES340706A1 (en)
FR (1) FR1480060A (en)
GB (1) GB1191732A (en)
NL (1) NL6706823A (en)
SE (1) SE327609B (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE378118B (en) * 1974-03-14 1975-08-18 Nordstjernan Rederi Ab
AT332951B (en) * 1974-11-06 1976-10-25 Bleckmann & Co CHROME NICKEL STEEL USED AS A SHEATHING MATERIAL FOR ELECTRIC TUBE RADIATORS
US4175163A (en) * 1976-03-29 1979-11-20 Nippon Steel Corporation Stainless steel products, such as sheets and pipes, having a surface layer with an excellent corrosion resistance and production methods therefor
DE2723640B2 (en) * 1977-05-25 1979-09-20 Elpag Ag Chur, Chur (Schweiz) Tubular heating elements for dishwashers
NL8600142A (en) * 1986-01-23 1987-08-17 Philips Nv METHOD FOR MANUFACTURING A SELF-REGULATING HEATING ELEMENT
FR2713432B1 (en) * 1993-12-03 1996-02-02 Seb Sa Electric heating resistance for a container intended to receive water to be heated, in particular a kettle.
GB2319950A (en) * 1996-12-06 1998-06-10 Strix Ltd Electroplating a stainless steel electric heating plate to prevent corrosion
DE29710464U1 (en) * 1997-06-16 1997-08-14 Ego Elektro Geraetebau Gmbh Wall element
DE10040749C2 (en) * 2000-08-19 2002-11-21 Stiebel Eltron Gmbh & Co Kg Jacket pipe of an electric tubular heater
FR2895206B1 (en) * 2005-12-16 2008-03-21 Framatome Anp Sas HEATED ROD FOR PRIMARY CIRCUIT PRESSURIZER OF A PRESSURE WATER NUCLEAR REACTOR.
US20080102309A1 (en) * 2006-10-27 2008-05-01 Tuffile Charles D Heating element sheaths

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3184331A (en) * 1963-12-16 1965-05-18 Du Pont Process of diffusion coating

Also Published As

Publication number Publication date
DE1621451A1 (en) 1971-05-13
SE327609B (en) 1970-08-24
DE1621451B2 (en) 1976-10-28
CS166218B2 (en) 1976-02-27
FR1480060A (en) 1967-05-05
DE1621451C3 (en) 1984-12-20
CH492804A (en) 1970-06-30
DK129662B (en) 1974-11-04
GB1191732A (en) 1970-05-13
AT275261B (en) 1969-10-27
DK129662C (en) 1975-03-17
DE1982775U (en) 1968-04-04
BE697036A (en) 1967-09-18
NL6706823A (en) 1967-11-20

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