Do you know how to choose a right muffle furnace?Here I just give you some advice to help you find a good muffle frunace.

1. How to choose muffle furnace in a right way?
The main part of the high-temperature furnace (muffle furnace) of:
1. Quality of insulation materials；
2. Mass heating element；
3. Quality appliances；
4. Quality of housing.
I. Selection of quality insulation material.
First, you should know the temperature your experimental quires, such as common experimental
temperature is 1000℃, then the insulation material of high-temperature furnace (muffle furnace)
must be able to reach high temperatur of 1100 ℃ -1200 ℃, the highest temperature of the
electric furnace is able to reach 1100-1200℃so that you can meet your requirements
experiments and make it achieve the longest life under normal use, be without the abnormal
situation,be in favor of the experiment.
II. How to judge the quality of the heating element is good or bad?
High-temperature furnace (muffle furnace) heating element: resistance wire, molybdenum silicon
rod and silicon carbide. The three heating element choice above is based on the highest
temperature of experiments that customers need. Resistance wire is usually choosed for the
temperature of 1000-1200℃, silicon carbide for 1300℃. Of course, the choice for higher
temperature has the higher price.
III. How to choose the furnace of muffle furnace?
Muffle furnace can be divided into four levels by furnace :
1.Made up of Refractories, low cost, heating restricted;
2.High temperaturealuminum furnace, suitable carbon-experiment;
3.Silicon carbide furnace, high price, the advantage is heating up not too fast, heating effect is
good;
4. Ceramic fiber furnace, high price, the advantage is heating up fast, part temperature is too high,
so it is easy to burn the furnace. I advice that you’d better choose the high temperature muffle
furnace with silicon carbide furnace, because it is safer according to every aspect.
【From Kejia Furnace http://www.furnace-tech.com】