JPS6319542U

JPS6319542U -

Info

Publication number: JPS6319542U
Application number: JP11362786U
Authority: JP
Priority date: 1986-07-24
Filing date: 1986-07-24
Publication date: 1988-02-09

Description

[Brief explanation of the drawing]

第１図は、この考案による一実施例を示す概略
断面図、第２図はこの考案による他の実施例を示
す概略断面図、第３図は従来の加熱炉を示す概略
断面図、第４図は従来装置を用いた脱脂率―炉内
温度―時間の関係を示す線図、第５図は本考案の
装置を用いた脱脂率―炉内温度―時間の関係を示
す線図、第６図はこの考案によるマイクロコンピ
ユータ制御の加熱炉の概略図、第７図はマイクロ
コンピユータ制御のフローチヤートである。１…加熱室、２…室壁、３…加熱源（発熱体）
、４…支持台、５…重量検知手段、６…重量減少
率算出手段、７…重量変化設定手段、８…制御手
段、９…出力調節手段、１０…電源、１１…温度
変化設定手段、１２…温度検知手段、１３…スイ
ツチ、２０…マイクロコンピユータ、２１…マイ
クロプロセツサ、２２…メモリ、２３…インター
フエース、２４…Ａ／Ｄ変換器。 FIG. 1 is a schematic sectional view showing one embodiment of this invention, FIG. 2 is a schematic sectional view showing another embodiment of this invention, FIG. 3 is a schematic sectional view showing a conventional heating furnace, and FIG. 4 is a schematic sectional view showing another embodiment of this invention. Figure 5 is a diagram showing the relationship between degreasing rate - furnace temperature - time using the conventional device, Figure 5 is a diagram showing the relationship between degreasing rate - furnace temperature - time using the device of the present invention, and Figure 6 is a diagram showing the relationship between degreasing rate - furnace temperature - time using the device of the present invention. The figure is a schematic diagram of a heating furnace controlled by a microcomputer according to this invention, and FIG. 7 is a flowchart of the microcomputer control. 1... Heating chamber, 2... Chamber wall, 3... Heating source (heating element)
, 4... Support stand, 5... Weight detection means, 6... Weight reduction rate calculation means, 7... Weight change setting means, 8... Control means, 9... Output adjustment means, 10... Power supply, 11... Temperature change setting means, 12 ...Temperature detection means, 13...Switch, 20...Microcomputer, 21...Microprocessor, 22...Memory, 23...Interface, 24...A/D converter.

Claims

[Scope of utility model registration request]

a heating chamber 1 that accommodates and heats a molded body formed from a powder raw material and a binder; a means 5 for detecting the weight of the housed molded body; a heating source 3 that heats the housed molded body; means 6 for calculating the weight reduction rate of the molded body in response to the output of the detection means 5;
, a control means 8 for comparing the calculated reduction rate with a preset value and sending out a control signal in accordance with the result, and a means 9 for adjusting the output of the heating source 1 in accordance with the control signal. A heating furnace characterized by: