GB334517A - A method of renovating cutting tools - Google Patents

A method of renovating cutting tools

Info

Publication number
GB334517A
GB334517A GB1032829A GB1032829A GB334517A GB 334517 A GB334517 A GB 334517A GB 1032829 A GB1032829 A GB 1032829A GB 1032829 A GB1032829 A GB 1032829A GB 334517 A GB334517 A GB 334517A
Authority
GB
United Kingdom
Prior art keywords
file
solution
acid
cutting
immersions
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
GB1032829A
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.)
MAX MENDEL TURNER
Original Assignee
MAX MENDEL TURNER
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 MAX MENDEL TURNER filed Critical MAX MENDEL TURNER
Priority to GB1032829A priority Critical patent/GB334517A/en
Publication of GB334517A publication Critical patent/GB334517A/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
    • C23F—NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL; MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLIC MATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASS C23 AND AT LEAST ONE PROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25
    • C23F1/00—Etching metallic material by chemical means
    • C23F1/06—Sharpening files

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)

Abstract

334,517. Turner, M. M. April 3, 1929. Etching.-Cutting-tools with multiple cutting- edges, such as files, rasps, augers, saws, broaches, and screwing dies, are renovated by immersion in successive acid baths, the cutting-edges being protected during one or more immersions and unprotected during one or more later immersions. For example, a worn file is first cleaned by boiling in caustic potash solution and then in a solution of slaked lime; the tops of the teeth are coated by a rubber, gelatine, &c., roller, &c., with a suitablevarnish such as a solution of Barbados tar in oil of turpentine; the file is immersed for about two hours in an acid bath composed of 95 parts water, 4 parts nitric acid of 40 per cent strength, and 1 part sulphuric acid of 66 per cent strength; after treating for a few minutes in caustic potash and weak sulphuric acid the varnish is removed by a circular brush; the file is again immersed for a period of one to ten hours in the mixed acid bath; finally the file is brushed under a jet of water, again immersed in the boiling solution of slaked lime, dried, and oiled or varnished.
GB1032829A 1929-04-03 1929-04-03 A method of renovating cutting tools Expired GB334517A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1032829A GB334517A (en) 1929-04-03 1929-04-03 A method of renovating cutting tools

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1032829A GB334517A (en) 1929-04-03 1929-04-03 A method of renovating cutting tools

Publications (1)

Publication Number Publication Date
GB334517A true GB334517A (en) 1930-09-03

Family

ID=9965827

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1032829A Expired GB334517A (en) 1929-04-03 1929-04-03 A method of renovating cutting tools

Country Status (1)

Country Link
GB (1) GB334517A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750345C (en) * 1936-11-28 1945-01-09 Method for sharpening files, rasps and the like like
GB2146586A (en) * 1983-09-12 1985-04-24 Hollingsworth Gmbh Treating the edges of a sawtooth wire for the card clothing of textile machines

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE750345C (en) * 1936-11-28 1945-01-09 Method for sharpening files, rasps and the like like
GB2146586A (en) * 1983-09-12 1985-04-24 Hollingsworth Gmbh Treating the edges of a sawtooth wire for the card clothing of textile machines

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