熱処理炉 - ntn corporation

Title:

熱処理炉

Document Type and Number:

Japanese Patent JP5311324

Kind Code:

B2

Abstract:

A heat treatment furnace that allows the atmosphere in the heat treatment furnace to be controlled with favorable accuracy includes a second heating zone identified as a reaction chamber, having a floor belt to hold a workpiece, and an atmosphere collect pipe having an opening in the second heating zone to collect an atmosphere in the second heating zone through the opening. The atmosphere collect pipe is installed to allow the distance between the opening and the floor belt to be modified.

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Inventors:

Riki Oki

Application Number:

JP2007226291A

Publication Date:

October 09, 2013

Filing Date:

August 31, 2007

Export Citation:

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Assignee:

ntn corporation

International Classes:

C23C8/32; C21D1/06; C21D1/74; C21D1/76; C21D9/40; F27B9/04; F27D7/06; F27D21/00

Domestic Patent References:

JP62040312A
JP8013125A
JP2003302171A
JP2003313637A

Foreign References:

US5759482

Attorney, Agent or Firm:

Kuro Fukami
Toshio Morita
Yoshihei Nakamura
Yutaka Horii
Hisato Noda
Masayuki Sakai
Nobuo Arakawa

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