Zhengzhou Shibo Nonferrous Metals Products Co., Ltd.

China Manufacturer with main products: Molybdenum Sheet, Molybdenum Rods, Molybdenum Electrode, Tungsen Sheet, Tungsten Rods, Lab Furnace, Mosi2 Heater, Sic Heater

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Super various SiC heat element for industrial furnaces fast delivery

FOB Price:	10.00 - 30.00 USD/Piece
Supply Ability:	100 Ton/Tons per Month
Shipping:	10-15 DAYS
Payment Terms:	L/C, T/T, Western Union

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Product Details

Export Markets:	North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, Mid East, Eastern Asia, Western Europe
Place of Origin:	Henan in China
Packaging Details:	wood case

Quick Details

Brand Name: SHBO
Model Number: SIC
SiC Content (%): 95
CrO Content (%): 0.1
Refractoriness (Degree): Common (1580°< Refractoriness< 1770°)
CaO Content (%): 0.5
MgO Content (%): 0.3
Al2O3 Content (%): 11
SiO2 Content (%): 88
Material: Silicon Carbide (SiC)
Shape: Pipe
Dimensions:: diameter :8-55mm
Length: 240-4000mm.
Application:: Heater Parts
Voltage:: AC220V,50/60HZ, single phase or as your requirement
Color:: Gray
Name:: Sic Heating Element
Open porosity:: Open porosity:
density:: density:
Modulus of elasticity:: 330Gpa(20centigrade),300Gpa(1200centigrade
Acid and alkali resistance: Excellent

Specifications

1.SiC heating element
2.type:ROD,GD,U,W,SPIRAL
3.diameter :8-55mm
4.length:100-4000mm
5.heating temperature:600-1500C

Description for h shaped SIC heating element

The h shaped SIC heating element is a resistance type silicon carbide heating elements. The elements are thick walled tubes. They have a central heating section referred to as a hot zone and two terminal sections called cold ends. The cold ends are impregnated with silicon metal to lower their resistance.

This causes them to operate at a lower temperature. The extremities of the sic heating elements are metalized with aluminum to provide a low resistance contact surface to which the electrical connections are made with braided aluminum straps. Elements are described by giving the overall length, the heating section length, the diameter and resistance

Features for The h shaped SIC heating element

High Performance :

The h shaped SIC heating elements will give you superior performance due to their high density – approximately 2.4gms/cc. This gives the element very slow aging characteristics and additional strength.

Operating Temperatures :

The h shaped SIC heating elements can be operated at furnace control temperatures up to 14500C in an air atmosphere or inert atmospheres of argon or helium. In reducing atmosphere the maximum recommended operating temperature is 13500c.

Electrical Characteristics :

The h shaped SIC heating elements is a linear resistance heater that converts electrical energy to heat energy(Joule's LawW = 12R). W=power in watts, l = Current in amperes, R = resistance in ohms.

The h shaped SIC heating elements are often referred to as self-bonded, for the lattice structure or bonds that hold the elements together are formed by recrystallizing the silicon carbide at very high temperatures. The elements are manufactured of green silicon carbide which is classed as an excess electron type semi-conductor.

The resistance of a silicon carbide element is difficult to measure at room temperature due to minor impurities, self heating and contact resistance. Also the green silicon carbide has a negative resistance temperature characteristic from room temperature to approximately 8000C.

It turns positive at this point and remains so throughout its normal operating temperature range. A typical resistance temperature characteristic curve of a silicon carbide heating element is show in Fig.C

The specification for h shaped SIC heating elements

Diameter	Length of Hot Zone	Length of Cold Zone	Overall Length	Resistance	Diameter	Length of Hot Zone	Length of Cold Zone	Overall Length	Resistance
8	100-300	60-200	240-700	2.1-8.6	30	300-2000	250-800	800-3600	0.4-4.0
12	100-400	100-300	300-1100	0.8-5.8	35	400-2000	250-800	900-3600	0.5-3.6
14	100-500	150-350	400-1200	0.7-5.6	40	500-2700	250-800	1000-4300	0.5-3.4
16	200-600	200-350	600-1300	0.7-4.4	45	500-3000	250-750	1000-4500	0.3-3.0
18	200-800	200-400	600-1600	0.7-5.8	50	600-2500	300-750	1200-4000	0.3-2.5
20	200-800	250-600	700-2000	0.6-6.0	54	600-2500	300-250	1200-4000	0.3-3.0
25	200-1200	250-700	700-2600	0.4-5.0

The relation between temperature and surface load

Furnace temperature(°C)	1100	1200	1300	1350	1400	1450
The surface load of calorific section(w/cm*cm)	less than 17	less than13	less than9	less than7	less than5	less than4

working Life for the h shaped SIC heating elements

The h shaped SIC heating elements increase gradually in resistance with use. This characteristics of increasing in resistance is called aging. Aging is a function of the following :

Operating temperature.
Electrical loading – usually expressed in watts per square centimeter of element radiating surface
Atmosphere
Type of operation (continuous or intermittent)
Operating and maintenance techniques

Asseming for The h shaped SIC heating elements :

There are no restrictions on the mounting positions of the h shaped SIC heating Element, the horizontal and vertical positions are the more common. Extreme caution should be used when mounting to insure that the elements are not placed in tension. There should be adequate freedom to allow for the furnace and elements to expand and contract independently.

When mounting elements vertically they must be supported on the lower end by electrically insulated supports.

The h shaped SIC heating Elements should have their heating sections centered in the furnace chamber so that no portion of the heating section extends into the furnace wall. A conical or truncated cone shaped recess ? inch deep is located on each interior wall where the element passes through. This allows the hot zone to radiate properly and helps maintain a uniform temperature in the kiln.

Professional manufacturer of the Sic heater h--Type ,Good quality and competitive price.
Material: Silicon Carbide

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