Click here for Bulk Orders
REQUEST A CATALOG
 
HOME ABOUT US PRODUCTS QUALITY POLICY BUSINESS ENQUIRY FAQ's CONTACT US
 
MoSi2 Heating Elements <<Back

Mosi heating elements are made up of pure molybdenum disilicide. A layer of quartz protective film gets formed on the surface of Mosi2 element due to its high temperature in the oxidizing atmosphere. This layer prevents Mosi2 from continuously oxidizing. The heating temperature ranges from 500°C to 1700°C which can reach to 1800°C in the oxidising atmosphere.

They are widely used in the sintering, heat treatment of ceramics, magnet, glass, metallurgy, refractory etc. The commercial name of our Mosi2 element is kerone Mosi2 Heating elements.

 
Dimension marks of elements Top
Material grade: 1700, 1800
Material grade: 1700, 1800
Diameter: D1/D2, mm/mm
Hot Zone length: LE, mm
Cold Zone length = LU, mm
Overall Length = A, mm

Examples:
U Shape Material Grade 1800 D1 = 3 mm, D2 = 6 mm, LE = 140 mm, LU = 125 mm,
A = 25 mm.

Specify as:
kerone Super MS17, W Shape, 6/12*300*250*50

Physical and chemical properties of elements
  1. Physical properties.

  2. Chemical Properties.
    In oxidizing atmosphere, the layer of compact quartz (SiO2) formation takes place on the surface due to high combustion heat, prevents Mosi 2 from continuously oxidizing. At temperature above 1700°C, the SiO2 protective film gets fused as the fusing point is 1710°C and the SiO2 gets fused into molten drops leading to loss of its protective ability. This protective layer is again formed again when the element is continuously used in oxidizing atmosphere. These elements cannot be used for long time in the temperature range of 400°C to 700°C as it will be powered owing to the strong oxidizing action in the low temperature.

  3. The maximum temperature of the element is different in different atmosphere.
 
Electric properties of elements Top
  1. Resistance properties
    Under normal operating conditions, the resistance of the element rises with the increase in the temperature. However, the resistance does not change with the application, so the new and old elements can be used together.

  2. Surface load
    The surface load of the element should be selected according to the construction of the furnace, atmosphere and temperature for the optimum life of the element. The figure alongside shows the relation between the furnace temperature, element temperature and element surface load under the condition that the element relation is not obstructed. The shadow part in the figure shows the surface load temperature range commonly used. The figure also shows the reference current.
 
Bookmark and Share
copyright 2008 kerone. All rights reserved. Terms & conditions | FAQ's | Contact us | Link Partner | RSS 2.0