Title:
CONTINUOUS ATMOSPHERIC FURNACE
Document Type and Number:
Japanese Patent JP3041439
Kind Code:
B2
Abstract:
PURPOSE: To improve durability and quality of the treatment and multiply the treatment in a continuous atmospheric furnace which is provided with a plurality of furnaces that treat objects to be treated in the atomospheric gas or under specified condition in vacuum and provides various treatments to the object to be treated by using those furnaces.
CONSTITUTION: Atmosphere maintaining means 27, 28 that maintain the inside of a transportation chamber 4 provided with a transportation means 12 for an object W to be treated in an atmosphere that prevents the chamber inside from being exposed to the outside air. A plurality of furnaces 5,6, 7 for treating the object to be treated in the atmosphere or in vacuum are arranged in the state that those furnaces are in parallel in the direction of the object W transportation in the transportation chamber 4, and the furnace ports 8 of those furnaces 5, 6, 7 are connected to the transportation chamber l+. A furnace door 10 that partitions airtightly the inside of the furnace and transportation chamber 4 is provided respectively for the furnaces 5, 6, 7, and the objects W in the transportation chambers 4 are loaded to the furnaces 5, 6, 7 and, at the same time, loading and unloading means that draw the objects W in the furnaces 5, 6, 7 into the transportation chamber 4 are provided.
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Inventors:
Hirofumi Sasaki
Application Number:
JP25006591A
Publication Date:
May 15, 2000
Filing Date:
September 30, 1991
Export Citation:
Assignee:
Tonetu Corporation
International Classes:
C21D1/76; C21D1/773; F27B9/04; F27B19/04; (IPC1-7): F27B9/04; C21D1/76; C21D1/773; F27B19/04
Other References:
「熱処理の自動化」大和久重雄 編（昭和４４−１０−３１）日刊工業新聞社発行 ５２頁、５３頁