MI HEATING CABLE INTRODUCTION

MI heating cable is made of single or multiple alloy heating wires as heat source, high purity and high temperature molten crystalline magnesium oxide as thermal insulation, seamless continuous stainless steel (304/316 L /825 alloy) or copper tube as sheathing, using special production process. Polyethylene or lower can be added where corrosion is strong.

MI heating cable is also known as MI sheathed mineral insulated heating cable. The inorganic mineral insulation of the electrothermal alloy wire (heating body) and the outer sheath metal sheath are extended many times to form a high density solid body. It can meet the requirements of high temperature conditions and large heating power (100 w/m), and the high temperature can reach 600℃; Conductor resistance ranges from 4ω/km to 25,000 ω/km, excellent mechanical strength and corrosion resistance. Mainly used in the nuclear industry, construction, metal manufacturing, tank, container heating, high temperature industrial pipeline heat tracing, process media condensation and viscosity reduction, various industrial electric heaters and other fields.

CLASSIFICATION OF MI HEATING CABLES

MI armored mineral insulated heating cables can be divided into single conductor MI heating cables and double conductor MI heating cables according to their structure. Typically, annealed copper is used as conductor, dense magnesium oxide as insulation, and annealed copper tubes as sheathing. In special cases, a layer of plastic can be extruded over the copper sheath.

1 Stainless steel sheathed mineral insulated MI heating cable.

2. Copper-sheathed mineral insulated heating cable.

3. Copper-nickel alloy sheathed mineral insulated heating cable.

MI RAW MATERIALS FOR HEATING CABLE CORE AND SHEATH

According to different heating constructors and temperature regulations, different core and wire jacket materials can be used according to Table 1 and Table 2.

MI heating cable core material Table 1

Metal sheathing materials for MI heating cable - Table 2