Heat rate controller

I have 20m ocr25al5 heating wire
I made a coil from it with 5mm diameter.
I link it with internal side of small closed cylindrical (15cm diameter *15cm height).
I want to make program in Arduino to control temperate (heater rate per minute) from 20 to 1000 degree.
How to make Ac control circuit?

What is the resistance of the coil?

what is the cylinder made of?

A controller like this may be suitable

Why do you think this has something to do with an Arduino? :confused:

The resistors of coil is 48 ohm.
The cylindrical is an isolated dielectric material.

mass? thermal heat capacity? thermal resistance?

What material are you using to keep the turns separated from each other and to maintain the "coil" form?
Paul

May we neglect the heat loss of cylindrical, I want to calculate the heat loss if it's opened from bottom, there is a door work with stepper motor to close it.

I can read that. What are you using to maintain the coil shape at close to the melting point of the wire?
Paul

The material is an iron-chromium-aluminium alloy (FeCrAl alloy) for use at temperatures up to 1050°C .

there is a small gap may 0.1mm between two adjacent turn.

Apparently your magic metal does not expand and get soft as it heats.
Paul

Yes I understand you I make helical cave at the wall of cylindrical.

Fine. Now lets discuss the electromagnet you are creating. How will you control the movement of each turn to keep them from being pulled together when current is applied?
Paul

Via the zero cross detector and triac I can control the current follow inside the wire through Arduino.

I have 20m [ocr25al5 heating wire ]
I made a coil from it with 5mm diameter.
I link it with internal side of small closed cylindrical (15cm diameter *15cm height).
there is a small gap may 0.1mm between two adjacent turn.
I make helical cave at the wall of cylindrical.

I think at this stage it would help if you posted a drawing of your idea. They say a picture is worth a thousand words. Plenty of apps out there to help with that, but why not use qcad? its free.

https://www.qcad.org/en/
QCAD is a free, open source application for computer aided drafting (CAD) in two dimensions (2D). With QCAD you can create technical drawings such as plans for mechanical parts or schematics and diagrams. QCAD works on Windows, macOS and Linux.

Or you could just do a drawing and take a photo.

My tutorial will show you how to upload an image

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