GB854208A - Process for the production of wear resisting surface layers on metals - Google Patents

Process for the production of wear resisting surface layers on metals

Info

Publication number
GB854208A
GB854208A GB28666/57A GB2866657A GB854208A GB 854208 A GB854208 A GB 854208A GB 28666/57 A GB28666/57 A GB 28666/57A GB 2866657 A GB2866657 A GB 2866657A GB 854208 A GB854208 A GB 854208A
Authority
GB
United Kingdom
Prior art keywords
sodium
chloride
cyanate
carbonate
workpieces
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
GB28666/57A
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.)
Evonik Operations GmbH
Original Assignee
Degussa GmbH
Deutsche Gold und Silber Scheideanstalt
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 Degussa GmbH, Deutsche Gold und Silber Scheideanstalt filed Critical Degussa GmbH
Publication of GB854208A publication Critical patent/GB854208A/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
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/40—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions
    • C23C8/42—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions only one element being applied

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Lubricants (AREA)
  • Chemical Treatment Of Metals (AREA)

Abstract

A metal is provided with a wear-resisting surface having a low coefficient of friction by treatment at 400 DEG -700 DEG C. in a fused salt bath containing selenium and/or tellurium or compounds thereof, an alkali metal chloride and/or carbonate, a cyanide and a cyanate. The bath may also contain an alkaline earth metal carbonate oxide, hydroxide and/or chloride. The examples disclose the treatment of (1) workpieces of steel containing Ni 20% and Cr 18% in a bath consisting of selenium, potassium chloride, sodium carbonate, sodium cyanate and potassium cyanate, (2) cast iron workpieces in a bath consisting of sodium selenite, potassium chloride, sodium carbonate, oxide and hydroxide, sodium cyanide and potassium cyanate, (3) workpieces of steel containing C 0.4% and Cr 1% in a bath consisting of sodium selenite, sodium chloride, carbonate and hydroxide, sodium cyanide and potassium cyanate, and (4) mild steel workpieces in a bath consisting of sodium tellurate, sodium chloride, sodium cyanide, calcium cyanate and barium chloride.
GB28666/57A 1956-10-06 1957-09-11 Process for the production of wear resisting surface layers on metals Expired GB854208A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE854208X 1956-10-06

Publications (1)

Publication Number Publication Date
GB854208A true GB854208A (en) 1960-11-16

Family

ID=6788793

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28666/57A Expired GB854208A (en) 1956-10-06 1957-09-11 Process for the production of wear resisting surface layers on metals

Country Status (1)

Country Link
GB (1) GB854208A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4818351A (en) * 1986-07-30 1989-04-04 Kabushiki Kaisha Toyota Chuo Kenkyusho Method for the surface treatment of an iron or iron alloy article

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4818351A (en) * 1986-07-30 1989-04-04 Kabushiki Kaisha Toyota Chuo Kenkyusho Method for the surface treatment of an iron or iron alloy article

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