Electrical specifications of L series magnesium oxide powder

L-series is heavy silicone treatment, moisture proof low temperature electro fused magnesium oxide powder. There are four different grades. L-series is used for manufacturing non-air heating elements ( such as copper, aluminum, bundy and stainless steel immersion heater, strong convection heater, contact heat conduction heater). L-series is unadvisable to do high temperature heat treatment, such as 1050C annealing. L-series has great moisture proof performance. We suggest simple sealing. Before sealing, we suggest dry process at 200-350C to elements.

Remark: Contents of +425 µm and -45 µm are controlled tightly. In order to acquire needed tap density and flow rate, other contents will be adjusted. (Custom-made for special specifications)

Tap density: T.D.(g/cm3):2.30-2.45 g/cm3, Flow rate:(F.T. s/100g):  35±4, (F.R. s/100g): 175±20

Package:  25KG/Carton, 1MT/pallet; Ton bag; Plastic bucket

Safety and storage:
Electro fused magnesium oxide is non-toxic, but with tiny amount of dust. We suggest to use mask and gloves in application. Magnesium oxide powder should be stored in dry places. Storage time suggested is less than 12 months after delivery.

L series of mgo, magnesium oxide powder
Chemical composition of L series magnesium oxide powder

Test Conditions:
Tube material: SUS304, φ8.0×0.5, L500, resistance wires: 0Cr25AL15,φ0.35mm,coil diaφ2.3mm
Shrink tubing:φ8.0→φ6.6mm, heating length: 450±10mm, dry process: 250℃/1Hr, energization time:30Min

Leakage current of L series magnesium oxide powder

China TOP supplier of Electro Fused Magnesium Oxide

Special Introduction
L-series is heavy silicone treatment, moisture proof low temperature electro fused magnesium oxide powder. There are four different grades. Compared with normal low temperature powder from other China suppliers, L-series has following quality advantages.

1, great moisture proof performance
Insulation of low temperature magnesium oxide from other suppliers can come to 2000MΩ only.
Insulation of L-series can come to 1x106MΩ.
Without sealing, after Humidity test (humidity 92%, 50C) 72 hours, there is no decline of insulation. With great moisture proof performance, we can improve production cycle; lower requirements of sealing materials. Simple sealing with common silicone.

2, application
L-series can manufacture heating elements with very high insulation performance and low application temperature.

3, Low dust
It makes good surroundings when filling powder.