World class silicon carbide rod with super quality and perfect service - Yuhao silca ED/U/W/SC/SCR/UX

• The General Description

1Production Process: Made into blank, silicided under high temperature and re-crystallized.

2Usage: It is widely used in various high temperature laboratory furnace and other electric heating devices, such as in the industries of magnet, ceramics, power metallurgy, glass, and metallurgy.

3Character: Higher temperature, antioxidation, anticorrosion, increasing temperature fast, low coefficient of thermal expansion and so on.

• The species of Yuhao silca heating elements

1) ED(rod)type elements
Type: ED Outer diameter (OD): mm Overall length (OL): mm

Hot zone length( HZ): mm Cold end length (CZ): mm

Examples:

ED Type,OD=54mm,HZ=1575mm,CZ=419mm,OL=2413mm ,Resistance 0.9

Specify as: Yuhao silca ED,54/1575/2413/0.90

2) U type elements

Type : U Outer diameter (OD): mm Overall length( OL): mm

Hot zone length ( HZ): mm Cold end length( CZ): mm Shank spacing (A): mm

Examples: U TYPE,OD=20mm,HZ=300mm,CZ=400mm, OL=700mm,A=60mm,Resistance 2.24
Specify as: Yuhao Silica U,20/300/700/60/2.24

3) W(three phase)type elements

Type : W Outer diameter (OD): mm Overall length( OL): mm

Hot zone length ( HZ): mm Cold end length( CZ): mm Shank spacing (A): mm

Examples:W TYPE,OD=20mm,HZ=250mm,CZ=350mm, OL=625mm,A=52mm,Resistance 0.9Ω

Specify as: Yuhao Silca W,20/250/625/52/0.9Ω

4) SC(single spiral)type elements

Type :SC Outer diameter (OD): mm Overall length( OL): mm

Hot zone length ( HZ): mm Cold end length( CZ): mm Shank spacing (A): mm

Examples: SC Type, OD=25mm,HZ=300mm,CZ=200mm,OL=700mm,Resistance 1.59Ω

Specify as: Yuhao Silca SC,25/300/700/1.59Ω

5)SCR(double spiral)type elements

Type :SCR Outer diameter (OD): mm Overall length( OL): mm

Hot zone length ( HZ): mm Cold end length( CZ): mm Shank spacing (A): mm

Examples: SCR Type, OD=31.7mm,HZ=305mm,CZ=241mm, OL=546mm,Resistance 4.46Ω

Specify as: Yuhao Silca SCR,31.7/305/546/4.46Ω

6)UX(slot)type elements

Type:UX Outer diameter (OD): mm Overall length( OL): mm

Hot zone length ( HZ): mm Cold end length( CZ): mm

Examples: UX Type, OD=30mm,HZ=400mm,CZ=300mm,OL=700mm, Resistance 2.76Ω

Specify as: Yuhao Silca UX,30/400/700/2.76Ω

• Electric property of SiC Heating Elements

SIC heating elements has rather large specific resistance .when it is heated in air and the surface temperature of the hot zone reaches 1050°C,it's resistance rate is 600-1400 mm2/mm ,its resistance value changes as the temperature rises. From room-temperature to 800°C is negative value ,over 800°C is positive value nature curve.

The key factor to the optimum servece life of the element is to select the surface load of the element correctly according to the furnace construction,atmosphere and temperature.Below figure shows the relation between fumace temperatures,element temperature and element surface load under the condition that the element radiation isn’t obstructed.

Recommend surface load

• When you place order, please tell us following data

a). Outer diameter (OD)

b). Length of Hot zone (HZ)

c). Length of Overall (OL)

d). Resistance (at 1050°C +/-50°C)

e).Shank spacing(A):mm

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