Title:
バッチ式熱処理炉
Document Type and Number:
Japanese Patent JP6997350
Kind Code:
B2
Abstract:
The invention provides an intermittent heat treatment furnace, which can inhibit the non-uniformity of the atmosphere in the furnace. The intermittent heat treatment furnace (10) is provided with a furnace body (12) provided with a top wall and side walls (14); a hearth (20) having an upper surface on which an object to be processed is placed; a plurality of heaters (30) which are arranged inside the furnace body, are arranged between the side wall and the object to be processed, and are arranged along the side wall at intervals in the circumferential direction; and a plurality of gas outlets for supplying atmospheric gas into the furnace body. The shape of the inside of the furnace formed by the furnace body and the hearth has a cylindrical shape. The plurality of gas outlets are located between the heaters and the side wall in the radial direction in the cylindrical furnace, and are located between circumferentially adjacent heaters in the circumferential direction in the cylindrical furnace. The direction in which the gas is blown out from the plurality of gas outlets is the inside of the furnace.
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Inventors:
Yamaguchi Minoru
Kohei Niwa
Kazuhiko Arima
Norihisa Nakamura
Kohei Niwa
Kazuhiko Arima
Norihisa Nakamura
Application Number:
JP2021034323A
Publication Date:
January 17, 2022
Filing Date:
March 04, 2021
Export Citation:
Assignee:
Nippon Insulator Co., Ltd.
NKG Kiln Tech Co., Ltd.
NKG Kiln Tech Co., Ltd.
International Classes:
F27B17/00; F27B3/22; F27D7/02
Domestic Patent References:
| JP2005077001A | ||||
| JP6213571A | ||||
| JP5187781A | ||||
| JP2002333283A | ||||
| JP63054587A |
Attorney, Agent or Firm:
Kaiyu International Patent Office