ES473645A1 - Corrosion Resistant Screws and Methods of Making Them - Google Patents

Corrosion Resistant Screws and Methods of Making Them

Info

Publication number
ES473645A1
ES473645A1 ES473645A ES473645A ES473645A1 ES 473645 A1 ES473645 A1 ES 473645A1 ES 473645 A ES473645 A ES 473645A ES 473645 A ES473645 A ES 473645A ES 473645 A1 ES473645 A1 ES 473645A1
Authority
ES
Spain
Prior art keywords
screw
making
methods
corrosion resistant
hardened
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
ES473645A
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.)
WA Deutsher Pty Ltd
Original Assignee
WA Deutsher Pty Ltd
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 WA Deutsher Pty Ltd filed Critical WA Deutsher Pty Ltd
Publication of ES473645A1 publication Critical patent/ES473645A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
    • C21D9/0093—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for screws; for bolts
    • 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
    • C23C8/04—Treatment of selected surface areas, e.g. using masks
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/008—Corrosion preventing means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/06—Surface treatment of parts furnished with screw-thread, e.g. for preventing seizure or fretting
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B25/00—Screws that cut thread in the body into which they are screwed, e.g. wood screws
    • F16B25/10—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws
    • F16B25/103—Screws performing an additional function to thread-forming, e.g. drill screws or self-piercing screws by means of a drilling screw-point, i.e. with a cutting and material removing action

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Thermal Sciences (AREA)
  • Heat Treatment Of Articles (AREA)
  • Electroplating Methods And Accessories (AREA)
  • Dowels (AREA)
  • Solid-Phase Diffusion Into Metallic Material Surfaces (AREA)

Abstract

A method of making a screw of corrosion-resistant steel and having hardened entering end portions including the steps of forming a screw of a suitable corrosion-resistant steel, forming on that part of the formed screw which is not to be hardened a substantially gas-impervious metallic layer, and subjecting the screw to a gas capable of reacting with the steel to produce a case hardening of the steel at that part of the screw which is to be hardened.
ES473645A 1977-09-27 1978-09-25 Corrosion Resistant Screws and Methods of Making Them Expired ES473645A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPD183477 1977-09-27

Publications (1)

Publication Number Publication Date
ES473645A1 true ES473645A1 (en) 1979-04-16

Family

ID=3767187

Family Applications (1)

Application Number Title Priority Date Filing Date
ES473645A Expired ES473645A1 (en) 1977-09-27 1978-09-25 Corrosion Resistant Screws and Methods of Making Them

Country Status (7)

Country Link
JP (1) JPS5467529A (en)
AU (1) AU3773478A (en)
DE (1) DE2831439A1 (en)
ES (1) ES473645A1 (en)
FR (1) FR2404142A1 (en)
GB (1) GB2006833A (en)
IT (1) IT1100813B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2792997C1 (en) * 2022-12-07 2023-03-28 Общество с ограниченной ответственностью Управляющая компания "Алтайский завод прецизионных изделий" Method for vacuum cementation of steel parts with threaded holes with protection of internal thread

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2633076B2 (en) * 1990-10-04 1997-07-23 大同ほくさん株式会社 Hard austenitic stainless steel screw and its manufacturing method
US5419948A (en) * 1990-02-12 1995-05-30 Daidousanso Co., Ltd. Hard austenitic stainless steel screw and a method for manufacturing the same
JP3023222B2 (en) * 1991-08-31 2000-03-21 大同ほくさん株式会社 Hard austenitic stainless steel screw and its manufacturing method
US5460875A (en) * 1990-10-04 1995-10-24 Daidousanso Co., Ltd. Hard austenitic stainless steel screw and a method for manufacturing the same
EP0532806B1 (en) * 1991-09-20 1995-12-06 Daido Hoxan Inc. A hard austenitic stainless steel screw and a method for manufacturing the same
US5205466A (en) * 1992-07-15 1993-04-27 Chieh-Chang Tzeng Manufacturing method of austenitic stainless steel self-tapping and self-drilling screw
US6117249A (en) * 1998-02-13 2000-09-12 Kerk Motion Products, Inc. Treating metallic machine parts
JP5584080B2 (en) * 2010-10-05 2014-09-03 平田ネジ株式会社 Hardened layer forming method and hardened layer forming apparatus
DE102010055210A1 (en) * 2010-12-20 2012-06-21 Ejot Gmbh & Co. Kg Low alloy carbon steel screw and method of making such a screw
TWI488974B (en) * 2011-10-26 2015-06-21 朝友工業股份有限公司 Manufacturing method of composite screw
DE102017101931B4 (en) * 2017-02-01 2022-05-05 Kamax Holding Gmbh & Co. Kg High strength screw with a softened threaded end

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2792997C1 (en) * 2022-12-07 2023-03-28 Общество с ограниченной ответственностью Управляющая компания "Алтайский завод прецизионных изделий" Method for vacuum cementation of steel parts with threaded holes with protection of internal thread

Also Published As

Publication number Publication date
DE2831439A1 (en) 1979-04-05
IT7827970A0 (en) 1978-09-22
JPS5467529A (en) 1979-05-31
FR2404142A1 (en) 1979-04-20
AU3773478A (en) 1980-01-10
IT1100813B (en) 1985-09-28
GB2006833A (en) 1979-05-10

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