HEATER CONTROL MECHANISM, HEAT TREATMENT EQUIPMENT AND HEATER CONTROL METHOD

• Main Authors: NAGAISHI AKIHIRO, SHIBATA DAIKI
• Format: Patent
• Language: English; Japanese
• Published: 29.11.2018
• Subjects: BLASTING; DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS,IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KINDOF FURNACE; ELECTRIC HEATING; ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; FURNACES; HEATING; KILNS; LIGHTING; MECHANICAL ENGINEERING; OVENS; RETORTS; WEAPONS

PROBLEM TO BE SOLVED: To improve temperature variation in a processing chamber by a heater control mechanism of simple structure.SOLUTION: A heater control mechanism 1 for controlling operation of multiple heaters 2a-2d provided in a heat treatment equipment 20 performing heat treatment of a work W is provided with a first switch 4 for switching all heaters 2a-2d ON/OFF, a second switch 5 for switching some heaters 2c, 2d, out of the multiple heaters 2a-2d, ON/OFF, and a control section 6 configured to give an operation instruction for switching ON/OFF to the first and second switches 4, 5 based on the temperature information in a processing chamber 21 for housing the work W. The control section 6 is further configured to calculate the operation time of the heater based on the temperature information in the processing chamber 21, and to give an operation instruction based on the calculated operation time to at least the second switch 5, out of the first and second switches 4, 5.SELECTED DRAWING: Figure 2 【課題】簡易な構造のヒータ制御機構で処理室内の温度ばらつきを改善する。【解決手段】ワークＷの熱処理を行う熱処理装置２０に設けられた複数のヒータ２ａ〜２ｄの動作を制御するヒータ制御機構１において、全てのヒータ２ａ〜２ｄのＯＮとＯＦＦを切り替える第１スイッチ４と、複数のヒータ２ａ〜２ｄのうち、一部のヒータ２ｃ、２ｄのＯＮとＯＦＦを切り替える第２スイッチ５と、ワークＷが収容される処理室２１内の温度情報に基づいて第１スイッチ４および第２スイッチ５にＯＮとＯＦＦを切り替える動作指示を与えるように構成された制御部６とを設け、制御部６がさらにワークＷが収容される処理室２１内の温度情報に基づいてヒータの作動時間を算出し、算出された作動時間に基づく動作指示を、第１スイッチ４および第２スイッチ５のうち、少なくとも第２スイッチ５に与えるように構成する。【選択図】図２