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1700C MoSi2 Molybdenum Disilicide Heating Elements 3/6mm 4/9mm

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1700C MoSi2 Molybdenum Disilicide Heating Elements 3/6mm 4/9mm

1700C MoSi2 Molybdenum Disilicide Heating Elements 3/6mm 4/9mm
1700C MoSi2 Molybdenum Disilicide Heating Elements 3/6mm 4/9mm 1700C MoSi2 Molybdenum Disilicide Heating Elements 3/6mm 4/9mm 1700C MoSi2 Molybdenum Disilicide Heating Elements 3/6mm 4/9mm

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Product Details:

Place of Origin: P.R. China
Brand Name: FOTMA
Certification: ISO9001:2000
Model Number: Made as per customers' requests

Payment & Shipping Terms:

Minimum Order Quantity: 1 pcs
Price: Negotiable
Packaging Details: Paper cartons or plywood boxes
Delivery Time: 20-25 days after deposit
Payment Terms: T/T, L/C, Western Union, PayPal
Supply Ability: 10000pcs/month
Detailed Product Description
Material Grade:: Mo-1, MoLa OEM Service:: Acceptable
Standard: GB, ASTM Surface: Bright, Chemical Clean, Grey And Black
Density: 10.2g/cm3 Application: Heating Elements In Disilicide Furnace
High Light:

MoSi2 Molybdenum Disilicide Heating Elements

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4/9mm MoSi2 Heating Elements

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1700C Molybdenum Disilicide Heating Elements

MoSi2 Molybdenum Products Molybdenum Heating Elements for Disilicide Furnace 
 
Product Description
 
MoSi2 heating elements is made from Molybdenum Disilicide with excellent thermal resistance. It can be used in air and various gases environments. Working temperature of MoSi2 heating element is 1300C to 1800C and it has been widely used as heaters in high temperature furnaces and kilns of metallurgy, glass, ceramic refractory, crystal electronic device, industrial furnace manufacture and chemical industry field.
 
Types of MoSi2 Heating Elements
1. According to temperature: 1700C and 1800C
2. According to Shape: U, W, I, UL, WL, Spiral types.
 
MoSi2 Heating Elements Standard Size:
(Hot zone dia / Cold zone dia)
3/6mm, 4/9mm, 6/12mm, 9/18mm, 12/24mm.
 
Chemical property of MoSi2
High temperature oxidation resistance:
When MoSi2 heating elements are used at high temperature and under oxidation circumstance, a dense layer of quartz (SiO2) is generated on the surface of the element to prevent it from further oxidation.
When the temperature of element is over 1700ºC, the SiO2 protecting film whose melting point is 1710ºC will be melted. Due to its surface tension, SiO2 agglomerate() into drops and lose protection. The SiO2 protecting film is formed again when the element continues to be used under the oxidation circumstance.
It must be pointed out is that the MoSi2 heating element cannot be used in the temperature between 400ºC to 700 ºC for long time. Otherwise, the element will be pulverized because of the strong low-temperature oxidation.
 
Resistance characters
 
MoSi2 heating elements have good resistance characteristic, so it is an ideal heating material to replace traditional heating elements.
 
At room temperature, its resistivity is very low, with the increase of temperature, the resistance increases sharply. The advantages of heating up fast and low power consumption are obvious. 
 
In normal operating circumstances, the resistance of the element is constant, so the old and new components can be mixed.
  
Molybdenum MoSi2 Heating Elements' Application:
 

Item

Name

Distinction criterion

Specification

Using range

Heating elements

1700  type

Element operating temperature 1700ºC is acceptable

Le Φ
6-12W type/U type/L type/all kinds of hetero type / stripe shape

high temperature electric resistance furnace

1800  type

Element operating temperature 1800ºC is acceptable

1800J type

Element operating temperature≥1800ºC

Le Φ
3-12W type

Special,high temperature and high-power electric resistance furnace

1800T type

Element operating  temperature≤1800ºC

Le Φ
3-12W type U type

Not oxidized special air high temperature electric resistance furnace

 
Atmosphere influence on the MoSi2 heater's operating temperature: 
 

Atmosphere

The max element temperature(ºC)

 

1700type

1800type

Air

1700

1800

N2 

1600

1700

He  Ar  Ne  Argon, Helium

1600

1700

Dry Hydrogen(dew point) -80ºC

1150

1150

Wet Hydrogen(Dew point) -20ºC

1450

1450

mixed gas(e . g . 10%CO2, 50%CO, 15% H2)

1600

1700

mixed gas(e . g . 40%CO2 , 20%CO)

1400

1450

Cracked and partly burnt ammonia 

1400

1450

 
Physics Characters of MoSi2
 

Bulk density

Bending strength

Hardness

Apparent porosity

Drawing water rate

Thermal elongation rate

5.6~5.8g/cm3 

20MPa(20ºC)

(hv)570kg/mm²

0.5~2.0%

0.5%

4%

 
Recommend surface load:
 

Furnace Temp(°c)

1400

1500

1600

1650

1700

Surface load of hot zone(W/cm²)

<18

<15

<12

<10

<8

 
Picture show:
 
1700C MoSi2 Molybdenum Disilicide Heating Elements 3/6mm 4/9mm 0

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Contact Person: Pauline Zhou

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