PL423210A1 - Method for glow-discharge nitriding of inner surfaces of bushings, preferably barrels - Google Patents

Method for glow-discharge nitriding of inner surfaces of bushings, preferably barrels

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Publication number
PL423210A1
PL423210A1 PL423210A PL42321017A PL423210A1 PL 423210 A1 PL423210 A1 PL 423210A1 PL 423210 A PL423210 A PL 423210A PL 42321017 A PL42321017 A PL 42321017A PL 423210 A1 PL423210 A1 PL 423210A1
Authority
PL
Poland
Prior art keywords
glow
barrels
cathode
inner surfaces
bushings
Prior art date
Application number
PL423210A
Other languages
Polish (pl)
Other versions
PL234237B1 (en
Inventor
Marek Betiuk
Zbigniew Łataś
Jerzy Michalski
Piotr Domanowski
Tadeusz Frączek
Original Assignee
Instytut Mech Precyzyjnej
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 Instytut Mech Precyzyjnej filed Critical Instytut Mech Precyzyjnej
Priority to PL423210A priority Critical patent/PL234237B1/en
Publication of PL423210A1 publication Critical patent/PL423210A1/en
Publication of PL234237B1 publication Critical patent/PL234237B1/en

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Abstract

Istota sposobu jarzeniowego azotowania wewnętrznych powierzchni tulei, zwłaszcza luf, w którym obrabiany przedmiot stanowiący katodę umieszcza się w próżni od 1 do 1500 Pa i łączy z dodatnim biegunem stałego napięcia wyładowania jonizującego o wartości 300 - 2000 V a do wnętrza obrabianego przedmiotu wprowadza się rurową anodę korzystnie z otworami dla przepływu atmosfery reakcyjnej stanowiącej mieszaninę wodoru i azotu, polega na tym, że jednocześnie na całą lub wybrane części obrabianej powierzchni katody (K) działa się polem magnetycznym o indukcji większej od 25 mT, przy czym źródło tego pola magnetycznego korzystnie umieszcza się wewnątrz anody i intensywnie chłodzi się go, ponadto, o ile wyładowanie jarzeniowe nie zapewnia wymaganej temperatury azotowania, obrabianą powierzchnię katody (K) dogrzewa się korzystnie promieniowaniem podczerwonym.The essence of the method of glow-discharge nitriding of the inner surfaces of the sleeves, especially the barrels, in which the cathode workpiece is placed in a vacuum from 1 to 1500 Pa and connected to the positive pole of a constant ionizing voltage of 300 - 2000 V and a tube anode is introduced into the workpiece preferably with holes for the flow of the reaction atmosphere consisting of a mixture of hydrogen and nitrogen, consists in the fact that at the same time the whole or selected part of the cathode (K) surface is treated with a magnetic field with an induction greater than 25 mT, the source of this magnetic field preferably being placed inside the anode and it is intensively cooled, moreover, unless the glow discharge provides the required nitriding temperature, the treated cathode surface (K) is preferably heated with infrared radiation.

PL423210A 2017-10-19 2017-10-19 Method for glow-discharge nitriding of inner surfaces of bushings, preferably barrels PL234237B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL423210A PL234237B1 (en) 2017-10-19 2017-10-19 Method for glow-discharge nitriding of inner surfaces of bushings, preferably barrels

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL423210A PL234237B1 (en) 2017-10-19 2017-10-19 Method for glow-discharge nitriding of inner surfaces of bushings, preferably barrels

Publications (2)

Publication Number Publication Date
PL423210A1 true PL423210A1 (en) 2019-04-23
PL234237B1 PL234237B1 (en) 2020-01-31

Family

ID=66167917

Family Applications (1)

Application Number Title Priority Date Filing Date
PL423210A PL234237B1 (en) 2017-10-19 2017-10-19 Method for glow-discharge nitriding of inner surfaces of bushings, preferably barrels

Country Status (1)

Country Link
PL (1) PL234237B1 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10185440A (en) * 1996-12-25 1998-07-14 Toyota Motor Corp Low temperature nitriding method for aluminum material and low temperature aluminum nitriding furnace
JP2001150074A (en) * 1999-12-01 2001-06-05 Honda Motor Co Ltd Method of manufacturing endless metallic belt
US20030091256A1 (en) * 2000-04-22 2003-05-15 Karl-Ludwig Grell Rolling bearing component
CN103805938A (en) * 2014-02-26 2014-05-21 樊宇 Electromagnetic stirring molten pool device capable of improving laser nitridation effect
US20160138674A1 (en) * 2013-06-25 2016-05-19 Toyota Jidosha Kabushiki Kaisha Manufacturing method for multi-layered ring

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10185440A (en) * 1996-12-25 1998-07-14 Toyota Motor Corp Low temperature nitriding method for aluminum material and low temperature aluminum nitriding furnace
JP2001150074A (en) * 1999-12-01 2001-06-05 Honda Motor Co Ltd Method of manufacturing endless metallic belt
US20030091256A1 (en) * 2000-04-22 2003-05-15 Karl-Ludwig Grell Rolling bearing component
US20160138674A1 (en) * 2013-06-25 2016-05-19 Toyota Jidosha Kabushiki Kaisha Manufacturing method for multi-layered ring
CN103805938A (en) * 2014-02-26 2014-05-21 樊宇 Electromagnetic stirring molten pool device capable of improving laser nitridation effect

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Publication number Publication date
PL234237B1 (en) 2020-01-31

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