China Manufacturer Mosi2 Heating Elements

Molybdenum disilicide (Mosi2) heating element is a resistance generate-heating component made from Mosi2 or the basic material. It is used in high temperature under the oxidizing atmosphere, it looks like glass in its surface and form a light Sio2 glass film which can protect the element not to be oxidized. So this kind of element has unique effect for resisting oxidization in the high temperature. It is used to the highest temperature up to 1800°C during oxidizing atmosphere. And the applicable temperature is 500-1700°C.

Physical and Chemical Properties

1. Physical Property

2. Chemistry Property

Mosi2 heating element is used in the high temperature under oxidizing atmosphere. It will form the SiO2 film which can keep the element from being melted. When the temperature of element is more than 1700 °C, the SiO2 protecting film is formed again when the element continues to be used. The Mosi2 heating element must not be used in the temperature between 400°C and 700°C, otherwise the element will be creamed under the strong oxidizing function in the low temperature.

3. The using temperature under the different atmosphere

Advice of Installation

1. MoSi2 heating element is very brittle under room temperature and plastic under high temperature. Therefore, it's the best way for installation of U type element to hang it vertically. Such way is to avoid putting the mechanical stress directly to the Hot Zone of the element, otherwise, the element will be broken easily. If it needs hang horizontally, please choose a support of high temperature refractory.

2. Please put the taper part of the element bottom into the furnace chamber to avoid local overheating.

3. The lead wire should be a little longer than the linear distance between the element and the bus to avoid putting the stress to the element.

4. Please don't tighten the screw of clamps too much at one time. It can be tightened when the element heats up to high temperature because of the element's plasticity.

5. The temperature of the clip should be less than 200°C, the contact voltage between the clip and the element should be less than 0.1V.

6. The distance between the lower end of the clip and the upper surface of the through brick should be more than 50mm, to avoid the radiation heat conducting to the clip.

7. To avoid damage, 170A couldn't be used for long term for the element of Ø6/12mm; 300A couldn't be used for long time used for the element of Ø9/18mm.

Package and shipping

1.Package

First carton packaging with plastic inside to protect, then wooden packaging outside;

For some special conditions, use iron hanger outside wooden case.

2. Shipping

Fedex/DHL/UPS/TNT for samples, Door-to-Door;

By Air or by Sea for batch goods;

Customers specifying freight forwarders or negotiable shipping methods;

Delivery Time: 3-7 days for samples; 5-25 days for batch goods.

When you enquiry, please tell us the following data:

DI: Diameter of Hot Zone(mm)

D2: Diameter of Cold Zone(mm)

Le: Length of Hot Zone(mm)

Lu: Length of Cold Zone(mm)

A: Shank Spacing(mm)