MULTI CHAMBER FURNACE FOR VACUUM CARBURIZATION AND HARDENING OF GEAR, SHAFT, RING, AND SIMILAR WORKPIECE

Japanese Patent JP2016164306

A

PROBLEM TO BE SOLVED: To provide a multi chamber furnace for vacuum carburization and hardening of a gear, shaft, ring, and the like.SOLUTION: The multi chamber furnace comprises a continuous feeding mechanism of an individual workpiece, and comprises at least two processing chambers being connected in parallel, in which a first heating chamber (2a), a second carburization chamber (2b), and a third diffusion chamber (2c) are vertically arranged in a vacuum space 1, and to end parts of the respective chambers (2a, 2b, 2c), a heating chamber 2a which is thermally insulated and having a graphite heating system, and a stepping feeding mechanism for continuously feeding each workpiece, are assembled. The furnace further comprises transfer chambers (5, 6) which comprise a loading and unloading system X-Y (7a, 7b) passing through heat-insulation and gas-tight doors 4 attached to the end parts of the chambers, and cooperating with each of the processing chambers, and access from outside to the transfer chambers is secured via unloading locks (8, 14).SELECTED DRAWING: Figure 1

MACIEJ KORECKI
WIESLAW FUJAK
JOZEF OLEJNIK
MAREK STANKIEWICZ
EMILIA WOLOWIEC-KORECKA

JP2016018711A

September 08, 2016

February 03, 2016

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SECO WARWICK SA

C21D1/00; C21D1/06; C21D1/18; C21D1/773; C21D9/28; C21D9/32; C21D9/40; C23C8/22; F27B9/02; F27B9/04; F27B9/12; F27D7/06

JP2008509282A	2008-03-27
JPH0287063U	1990-07-10
JP2016517916A	2016-06-20
JP2013504686A	2013-02-07
JP2003183728A	2003-07-03
JPH06511514A	1994-12-22
JPS532312A	1978-01-11

US20020146659A1

2002-10-10

Yasuhiko Murayama
Shinya Mitsuhiro
Tatsuhiko Abe

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