How to purchase the muffle furnace correctly?

Pick elements

1. Temperature According to the actual use temperature, select the highest temperature of the muffle furnace. Generally, during use, the maximum temperature of the muffle furnace should be 100~200℃ higher than the operating temperature.

2. Furnace size

根據要燒製的樣品的重量和體積選擇合適的爐子尺寸。 一般爐膛容積應為試樣總容積的3倍以上。

3. Furnace material

Furnace materials are roughly divided into two types: fiber materials and refractory brick materials;

Fiber characteristics: light weight, soft texture, good heat preservation;

The characteristics of refractory bricks: heavy weight, hard texture, general heat preservation.

4. Power supply voltage

使用前需要確定馬弗爐的工作電壓是380V還是220V，以免買錯。

5.加熱元件

根據燒製樣品的不同要求，主要採用不同的加熱元件來確定選擇什麼樣的爐體。 一般1200℃以下使用電阻絲，1300~1400℃基本使用矽碳棒，1400~1700℃基本使用矽鉬棒。