GB380882A - Improvements in or relating to hardening alloy steels - Google Patents

Improvements in or relating to hardening alloy steels

Info

Publication number
GB380882A
GB380882A GB2051331A GB2051331A GB380882A GB 380882 A GB380882 A GB 380882A GB 2051331 A GB2051331 A GB 2051331A GB 2051331 A GB2051331 A GB 2051331A GB 380882 A GB380882 A GB 380882A
Authority
GB
United Kingdom
Prior art keywords
alloy steels
relating
hardening alloy
nitrogenizing
electro
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
GB2051331A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB2051331A priority Critical patent/GB380882A/en
Publication of GB380882A publication Critical patent/GB380882A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • C23C12/00—Solid state diffusion of at least one non-metal element other than silicon and at least one metal element or silicon into metallic material surfaces

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Electroplating Methods And Accessories (AREA)

Abstract

In a process for nitrogenizing alloy steels as described in the parent Specification, the steel before nitrogenizing is coated with iron by electro-deposition or any other process whereby the steel may be coated while cold. When coating by electro-deposition, the electrolyte comprises an aqueous solution containing 14 per cent of ferrous ammonium sulphate. Reference has been directed by the Comptroller to Specification 345,659*.
GB2051331A 1931-07-17 1931-07-17 Improvements in or relating to hardening alloy steels Expired GB380882A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2051331A GB380882A (en) 1931-07-17 1931-07-17 Improvements in or relating to hardening alloy steels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2051331A GB380882A (en) 1931-07-17 1931-07-17 Improvements in or relating to hardening alloy steels

Publications (1)

Publication Number Publication Date
GB380882A true GB380882A (en) 1932-09-29

Family

ID=10147124

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2051331A Expired GB380882A (en) 1931-07-17 1931-07-17 Improvements in or relating to hardening alloy steels

Country Status (1)

Country Link
GB (1) GB380882A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4013487A (en) * 1974-03-14 1977-03-22 Rederiaktiebolaget Nordstjernan Nickel and/or cobalt-coated steel with carburized interface

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4013487A (en) * 1974-03-14 1977-03-22 Rederiaktiebolaget Nordstjernan Nickel and/or cobalt-coated steel with carburized interface

Similar Documents

Publication Publication Date Title
GB366813A (en) Improvements in or relating to electrolytes and amalgamating baths for the production of metallic coatings
GB517049A (en) Improvements in or relating to improving the resistance of metals to corrosion
GB257262A (en) Method of applying zinc coatings to iron articles
GB534883A (en) Improvements relating to improving the resistance of metals to corrosion
GB809312A (en) Electrodeposition of zinc on magnesium and its alloys
GB380882A (en) Improvements in or relating to hardening alloy steels
GB655079A (en) Improvements in or relating to the production of phosphate coatings
GB416608A (en) Improvements in or relating to the colouring of tin and tin alloys and articles madetherefrom applicable also to protecting same against corrosion
GB287912A (en) Improvements in processes for controlling the action of pickling acids on metals
GB730897A (en) Process of pickling metals
GB633650A (en) Improvements in or relating to the production of phosphate coatings on metals
GB410645A (en) Improvements in or relating to the electro-plating of articles with chromium
GB597754A (en) Process for treating ferrous sheets and other ferrous articles
GB395491A (en) A process for preventing the tarnishing of the surface of silver and its alloys
GB309380A (en)
GB314769A (en) An improved process for coating metals
GB599784A (en) Improvements in or relating to processes for the production of protective coatings on metal surfaces
GB305197A (en) Process of improving the resistance to corrosion of magnesium and magnesium alloys
GB515648A (en) Improvements in or relating to a method of producing coatings on magnesium or its alloys
GB350420A (en) Improvements in or relating to the proofing of iron and steel against rust
GB447524A (en) Improved methods for regenerating phosphoric acid pickling baths
GB526267A (en) Process of applying coatings of non-ferrous metals to cast iron
GB313901A (en) Improvements in processes for producing coatings on metal articles
GB420461A (en) Improvements relating to processes for preventing rusting of ferrous metals
GB477910A (en) Improvements in the production of phosphate coatings on ferrous surfaces