METHOD FOR MAKING RAILROAD WOOD SCREWS Russian patent published in 1997 - IPC

Abstract RU 2100127 C1

FIELD: plastic metal working, namely manufacture of railroad wood screws by cold forming and knurling. SUBSTANCE: method comprises steps of preliminarily cutting blank, subjecting it to cold forming for successively making preliminary head in the form of truncated cone, finished tetrahedral flanged head, smooth portion of rod, rod portion for thread knurling. Buttress wood screw thread is made by cold knurling. Smooth portion of rod is made by upsetting initial blank with diameter equal to 0.8-0.85 of diameter of smooth portion. Diameter of rod portion for knurling thread is formed equal to 0.75- 0.82 of outer diameter of thread; transition cone is made between smooth portion and rod portion with diameter for thread knurling. EFFECT: lowered labor consumption, enhanced quality of wood screws. 4 cl, 2 dwg

Similar patents RU2100127C1

Title Year Author Number
METHOD FOR MAKING ARTICLES SUCH AS BOLT BLANKS 2000
  • Pospelov A.L.
  • Artjukhin V.I.
  • Chukharev G.A.
  • Drapeko V.N.
  • Pikalov A.V.
  • Khristenko T.V.
RU2161082C1
METHOD OF MAKING BOLTS WITH HEAD AND CONICAL SECTION ON ROD 2007
  • Adamchuk Sergej Vladimirovich
  • Trakhtengerts Vitalij Leomel'Evich
  • Artjukhin Vladimir Ivanovich
  • Belan Ol'Ga Anatol'Evna
RU2336143C1
METHOD OF MAKING BOLTS WITH FLANGE 2012
  • Musin Radik Akhnjafovich
  • Bakirov Rustem Maratovich
RU2489224C1
METHOD FOR MAKING BALL-HEAD PINS 2002
  • Zakirov D.M.
  • Valiev R.Sh.
  • Nurkaev I.B.
RU2212973C1
METHOD FOR MAKING FLANGED BOLT WITH SHAPED HEAD 2004
  • Zakirov D.M.
  • Sabadash A.V.
  • Vasil'Ev S.P.
  • Musin R.A.
  • Fadeev V.V.
RU2265494C1
METHOD OF PRODUCING ARTICLE OF DOOR FASTENER TYPE 2010
  • Valiev Rafail Shamilevich
  • Babintsev Andrej Viktorovich
RU2443495C2
METHOD OF PRODUCING ROD-TYPE STEPPED GROOVED PARTS 2010
  • Ovchinnikov Sergej Vasil'Evich
  • Valiev Rafail Shamilevich
  • Egorov Evgenij Ivanovich
RU2422236C1
METHOD OF MANUFACTURING BOLT WITH PROFILE HEAD AND FLANGE 2007
  • Bakirov Rustem Maratovich
  • Kirsanov Jurij Alekseevich
RU2344015C1
METHOD FOR PRODUCTION OF ROD-TYPE PRODUCTS WITH A HEAD AND A CONICAL PART 2020
  • Seliverstova Oksana Viktorovna
  • Kalinin Aleksandr Mikhajlovich
  • Fedosov Sergej Valerevich
  • Kachanov Dmitrij Vladimirovich
RU2761061C1
METHOD TO PRODUCE BOLTS WITH FLANGES 2008
  • Nosov Aleksej Dmitrievich
  • Noskov Evgenij Petrovich
  • Reshetnikova Elena Sergeevna
RU2385200C1

RU 2 100 127 C1

Authors

Bukhinik G.V.

Artjukhin V.I.

Khristenko T.V.

Pospelov A.L.

Drapeko V.N.

Solov'Ev M.I.

Dates

1997-12-27Published

1996-03-19Filed