Show metadata Hide metadata

(19)

(11)

2 570 262

(13)

(51)

IPC

C21D9/10(2006-01-01)

C21D1/48(2006-01-01)

C21D1/767(2006-01-01)

(21) (22)

Application

2014122652/02, 2014-06-03

(24)

Start date

2014-06-03

(22)

Actual filing date

2014-06-03

(45)

Published

2015-12-10

(72)

Inventor

Velikolug Aleksandr MikhajlovichKustova Vera PavlovnaPosternak Pavel IvanovichPosternak Ivan Pavlovich

(73)

Holder

Otkrytoe Aktsionernoe Obshchestvo Im. V.A. Degtjareva"

THERMAL PROCESSING OF AUTOMATIC GUN BARREL PIN Russian patent published in 2015 - IPC C21D9/10 C21D1/48 C21D1/767

Abstract RU 2570262 C1

FIELD: ammunition.

SUBSTANCE: claimed process comprises heating the pin for tempering at 5-10 mm from the barrel end to 890-910°C by HF currents. Note here that the barrel is revolved with the chamber purging with inert gas at gas flow rate of 0.35-0.41 m³/h. For barrel air cooling, it is turned over to be set at tempering appliance with its breech directed downward, on the heated pin. Tempering is combined with stabilising tempering of the barrel chromium-plated bore in resistance furnace with two thermal zones at top zone temperature of 420-450°C.

EFFECT: higher pin contact surface quality.

2 cl, 2 dwg, 2 ex

Similar patents RU2570262C1

Title	Year	Author	Number
METHOD OF STABILISATION OF ELECTROPLATED CHROME COATING OF BARRELS OF AUTOMATIC SMALL ARMS, AND SHAFT-TYPE RESISTANCE FURNACE FOR ITS IMPLEMENTATION	2014	Velikolug Aleksandr Mikhajlovich Marinevich Sergej Nikolaevich Nikolaevich Marija Vladimirovna Posternak Pavel Ivanovich Posternak Ivan Pavlovich Pankov Valerij Leonidovich Chervonnyj Vladimir Nikolaevich	RU2570265C1
BARREL OF AUTOMATIC SMALL ARMS, WHICH IS MADE USING COLD RADIAL REDUCTION METHOD, AND METHOD FOR ITS LOCAL HARDENING	2012	Velikolug Aleksandr Mikhajlovich Posternak Pavel Ivanovich Jukin Vladimir Ivanovich	RU2498185C1
METHOD OF MANUFACTURING BARREL OF AUTOMATIC SMALL ARMS	2011	Afonin Boris Vladimirovich Velikolug Aleksandr Mikhajlovich Voronin Pavel Vjacheslavovich Voronin Roman Pavlovich Gorbachev Aleksandr Evgen'Evich Pankov Valerij Leonidovich	RU2458157C1
METHOD OF PRODUCTION OF BARREL OF HEAVY MACHINE GUN	2013	Afonin Boris Vladimirovich Velikolug Aleksandr Mikhajlovich Voronin Pavel Vjacheslavovich Voronin Roman Pavlovich Gorbachev Aleksandr Evgen'Evich Pankov Valerij Leonidovich	RU2530218C2
METHOD OF FABRICATING FIRE ARM BARREL	2010	Afonin Boris Vladimirovich Velikolug Aleksandr Mikhajlovich Voronin Pavel Vjacheslavovich Voronin Roman Pavlovich Gorbachev Aleksandr Evgen'Evich Pankov Valerij Leonidovich	RU2446904C1
PRODUCTION OF BARREL	2013	Kozhokin Timofej Ivanovich	RU2526659C1
GUN BARREL COOLING SYSTEM	2013	Simonenko Aleksej Ivanovich Afanasenko Aleksandr Dmitrievich Muzychenko Galina Fedorovna	RU2531664C2
METHOD OF MANUFACTURING FIREARMS WEAR-RESISTANT BARREL	1993	Evseev V.A. Lipsman D.L. Pestov I.V.	RU2066821C1
METHOD OF PRODUCTION OF GUN BARREL	2013	Kvanin Vadim Leonidovich Lorjan Vazgen Ehdvardovich Kvanin Leonid Vadimovich Karabakhin Vladimir Gennadievich Borovinskaja Inna Petrovna	RU2557892C2
DEVICE FOR COOLING MACHINE GUN BARREL	2020	Kozhokin Timofej Ivanovich	RU2735037C1

RU 2 570 262 C1

Authors

Velikolug Aleksandr Mikhajlovich

Kustova Vera Pavlovna

Posternak Pavel Ivanovich

Posternak Ivan Pavlovich

Dates

2015-12-10—Published

2014-06-03—Filed