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Component of electric heat of high temperature of chromic acerbity lanthanum
From;    Author:Stand originally

Component of electric heat of superhigh temperature of chromic acerbity lanthanum
One component utility reachs a characteristic
1 utility
Component of electric heat of superhigh temperature of chromic acerbity lanthanum is the electric heat material of new generation, it is bases with chromic acerbity lanthanum, be in in high temperature air and the resistor that oxidation uses in atmosphere electric stove are calorific component, . This product is a country " 85 " later period science and technology tackles key problem project, it is a country " 863 " plan project product, what apply extensively at the industry such as electron, pottery and porcelain, glass, metallurgy, chemical industry, machinery is medium muffle furnace and report on heating installation.
2 characteristics
● use temperature is high, highest surface temperature can amount to 1900 ℃ , furnace temperature can amount to 1700 ℃ ~ 1800 ℃ .
● life is long, the surface 1800 ℃ furnace temperature 1700 ℃ , life amounts to 4000 hours, 1500 ℃ use more than 10000 hours below.
Coefficient of ● heat radiation is tall.
● resistor change is little, can accuse accurately lukewarm.
Two component function
1 physics function

Density (G/cm2) tensile strength (MPa) linear expansion coefficient (× 10 - 6m/ ℃ ) radiation coefficient melting point (℃ )
≥ 4.8 45 8 0.96 2490

Express function of physics of component of one chromic acerbity lanthanum
2 chemical function
Normal temperature falls not to suffer soda acid to erode, suffer below high temperature alkaline erode.
3 report function
Use power 600 ~ 1700W, normal temperature resistor 80 Ω of 50 Ω ~ , 5 Ω control 1800 ℃ resistor, below normal temperature but direct power transmission (30V) .
4 surfaces bear (recommend)
Furnace temperature (℃ ) 1800 1700 1600 1500
Bear (W/cm2) 8 9 11 13



Express bear of surface of component of 2 chromic acerbity lanthanum
5 lining material
The lining of hollow ball alumina of small alkaline part.
3 component norms reachs parameter
Component norms dimension (Mm) resistor rated power
Diameter (D) full-length (L) calorific end (I) Leng Duan (B) 1800 ℃ issue 1600 ℃ (V × A)
B14 - × of 230 14 230 50 90 2.7 30 11
B14 - × of 380 14 380 80 150 4.5 54 12
B14 - × of 450 14 450 120 165 5.0 66 13
B16 - × of 380 16 380 80 150 4.0 54 13
B16 - × of 550 16 550 180 185 5.0 65 13
B18 - × of 650B 18 650 200 225 5.5 66 12
B18 - × of 650 18 650 250 200 6.0 78 13
B20 - × of 850 20 850 300 275 6.5 92 15
B22 - × of 900 22 900 350 275 7.0 112 16
Overall length reachs Leng Duan, calorific end 1 meter to the 2.2 diametical component such as rice, abnormity component length can be made according to the requirement of the user
4 installation means
1 perpendicular installation
Leng Duan covers protruding stage corundum to be in charge of, the lower end is held in the palm with porcelain, bedspring and adjusting gear are propped up, the purpose is to prevent high temperature because next component are self-prossessed be pulled.
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