JPS56105417A - Heating control method - Google Patents
Heating control methodInfo
- Publication number
- JPS56105417A JPS56105417A JP919180A JP919180A JPS56105417A JP S56105417 A JPS56105417 A JP S56105417A JP 919180 A JP919180 A JP 919180A JP 919180 A JP919180 A JP 919180A JP S56105417 A JPS56105417 A JP S56105417A
- Authority
- JP
- Japan
- Prior art keywords
- temp
- furnace
- article
- heated
- flow amount
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
- C21D1/34—Methods of heating
- C21D1/52—Methods of heating with flames
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Heat Treatment Of Strip Materials And Filament Materials (AREA)
- Control Of Heat Treatment Processes (AREA)
Abstract
PURPOSE:To heat an article to be heated to a set temp. without generating temp. irregularity by a method wherein the temp. of the gaseous atmosphere in an indirect type heating furnace is regulated to a definite value and a combustion amount in an direct firing heating furnace is controlled based on a difference of the temp. of the article to be heated and a set temp. at an outlet of the furnace. CONSTITUTION:The article 1 to be heated is passed through a preheating slot 2, the direct firing heating furnace 3 and the indirect type heating furnace 4 and reached to the outlet part 5. In the furnace 4, the temp. of the atmospheric gas in said furnace is measured by a thermocouple 21 and a fuel flow amount control valve 20 is controlled by a temp. indication and control meter TIC3 so as to adjust the temp. of said gas to the set value set by the TIC3. The temp. of the article 1 to be heated at the outlet of said furnace 4 is measured by a radiation type thermometer 15 and the measured value is sent to a TIC1. The TIC1 counts the difference of the preliminarily set temp. of the article 1 to be heated and the measured value and the signal thereof is transmitted to a fuel flow amount indication and control meter FIC1 through a ratio setting instrument R1 and the FIC1 adjusts a a flow amount control valve 9 according to the order thereto. On the other hand, a FIC2 for air adjusts a flow amount control valve 13 through a flow amount detector 10 and a ratio setting instrument R2 to establish a predetermined air fuel ratio.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP919180A JPS56105417A (en) | 1980-01-28 | 1980-01-28 | Heating control method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP919180A JPS56105417A (en) | 1980-01-28 | 1980-01-28 | Heating control method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS56105417A true JPS56105417A (en) | 1981-08-21 |
JPS63489B2 JPS63489B2 (en) | 1988-01-07 |
Family
ID=11713625
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP919180A Granted JPS56105417A (en) | 1980-01-28 | 1980-01-28 | Heating control method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56105417A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62243718A (en) * | 1986-04-16 | 1987-10-24 | Nisshin Steel Co Ltd | Heat treatment of cold rolled stainless steel strip |
-
1980
- 1980-01-28 JP JP919180A patent/JPS56105417A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS62243718A (en) * | 1986-04-16 | 1987-10-24 | Nisshin Steel Co Ltd | Heat treatment of cold rolled stainless steel strip |
Also Published As
Publication number | Publication date |
---|---|
JPS63489B2 (en) | 1988-01-07 |
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