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Everything you need to know about electric furnace maintenance
Do electric furnaces need maintenance? Although minimal, yes indeed, and there are a few key things to think about. Together with Stephen Smee, our material expert Torbjörn walks us through everything you need to know about how to service an electric furnace to keep it hot and well for as longHow to form a coiled heating element
Are you curious to know how to make a coiled heating element, why nichrome is non-magnetic, or why the same heating wire can have different color? Welcome into our element workshop where we meet Stephen Smee and Kanthal material expert, Torbjörn Frankén who walk us through everything youKanthal and Rath announce strategic partnership to expand sustainable industrial heating technology offerings
Kanthal and Rath announces the signing of a strategic partnership to expand sustainable heating offerings in the market.
Miscellaneous conversion factors
Miscellaneous conversion factors To convert from To Multiply by BTU Kilo-calorie 0.25200 BTU Foot-pound 778.17 BTU Joules 1054.0 BTU Kilowatt-hour 0.00029307 Calorie Joule 4.1840 Centigrade Fahrenheit (1.8 x °C) + 32 Circular mil Square centimeter 0.000005067 Circular mil Square inch
Symbols, formulas and definitions
List of symbols Unit for calculations Symbol Meaning Metric Imperial Ac Surface area of heating conductor cm2 in2 b Width (ribbon or strip) mm in Ct Temperature factor (ratio of resistivity at operating temperature to resistivity at room temperature) d Wire diameter mm
Strip
Content: Kanthal® A-1 Kanthal® AF Kanthal® APM Kanthal® APMT Kanthal® D Nikrothal® 80 Nikrothal® 70 Niktrothal® 60 Nikrothal® 40 Kanthal® A-1 Resistivity 1.45 Ω mm2/m Density 7.1 g/cm3 To obtain resistivity at working temperature, multiply by factor
Wire
Content: Kanthal® A-1 Kanthal® AF Kantal® APM Kanthal® APMT Kanthal® D Nikrothal® 80 Nikrothal® 70 Nikrothal® 60 Nikrothal® 40 Kanthal® A-1 Resistivity 1.45 Ω mm2/m Density 7.10 g /cm3 To obtain resistivity at working temperature, multiply by factor
How to form a strip heating element
Welcome into our element workshop where we meet Stephen Smee and Kanthal material expert, Torbjörn Frankén. Together they walk us through how to form a Kanthal AF strip element, what to think about and what to watch out for. For more “How to” videos, follow our YouTube channel. In short:Element support systems
Content: Wire: Spirals - free radiating Wire: Spirals Wire: Rob Wire: Loop Strip: Corrugated - free radiating Strip: Corrugated USE OF CERAMIC SUPPORT MATERIALS The ceramics used in furnace construction significantly affect furnace life, operating properties, and thermal efficiency.
Elements in furnaces
For determining the dimensions and forms of industrial elements, the main factors are furnace temperature, furnace power (which depends on the load and the heating rate), available voltage, and the physical size of the furnace chamber. These are discussed below. Furnace temperature