Title:
バッチ式熱処理炉
Document Type and Number:
Japanese Patent JP6903205
Kind Code:
B2
Abstract:
The technical problem addressed by the present invention is to provide a batch-type heat treatment furnace which, when cooling variation occurs in a workpiece, can suppress the cooling variation and enable easier and more uniform workpiece cooling by changing the cooling capacity for each area and cooling only specific parts. This technical problem is solved by a batch-type heat treatment furnace that comprises, disposed inside of a casing (2), an inner chamber (3) which constitutes a heat treatment chamber, a cooling space (S), multiple ventilation flow paths (10) which allow communication between the inside of the inner chamber (3) and the cooling space (S), and lids (11) which are provided in each ventilation flow path (10), wherein each of the lids (11) can individually open and close the ventilation flow paths (10) in a manner allowing adjustment of the degree of opening thereof so as to differ the amount of air flowing from the cooling space (S) into the inner chamber (3) for each ventilation flow path (10); each of the ventilation flow paths (10) is provided with discharge holes (10a), and the discharge holes (10a) allow communication with the inner chamber (3); the multiple ventilation flow paths (10) include ventilation flow paths (10) that are arranged in a branching manner and ventilation flow paths that have different numbers and arrangements of the discharge holes (10a).
Inventors:
Noriaki Nagai
Tomoya Okubo
Junichi Usuda
Tomoya Okubo
Junichi Usuda
Application Number:
JP2020151282A
Publication Date:
July 14, 2021
Filing Date:
September 09, 2020
Export Citation:
Assignee:
Chugai Furnace Industry Co., Ltd.
International Classes:
C21D1/74; F27B5/16; F27B14/08; F27D9/00
Domestic Patent References:
| JP2020085359A | ||||
| JP1176023A | ||||
| JP63064762U | ||||
| JP4174289A | ||||
| JP63255319A | ||||
| JP62188718A |
Attorney, Agent or Firm:
Satoshi Suzuki