It is made of metal tube as shell, electric heating wire as heating element, and magnesium oxide powder with good insulation and thermal conductivity as filler, through processes such as tube reduction, annealing, bending, and welding of fasteners. This product has one end for wiring, and the surface load design can be: 1-22W/cm2. It has the advantages of small size, light weight, low price, safety and reliability, easy installation, high thermal efficiency, fast heating, and long life.
The internal filler insulates the heating wire from air, keeping it centered without shifting and touching the tube wall, so the tube surface is not electrified. The cold end of this product can be manufactured according to customer requirements.
I. Specifications:
1. Tube diameter: Φ3mm-Φ30mm;
2. Single tube length: 15mm-6000mm;
3. Power: designed according to heating medium and size;
4. Tube material: iron, stainless steel, copper, titanium tube, imported materials;
5. Temperature range: 0-1000°C.
II. Technical Parameters:
1. Operating voltage should be equal to rated voltage or not exceed 10% of rated value;
2. For rated power ≤100W: ±10%. For rated power >100W: +5% to -10% or 10W, whichever is greater;
3. Leakage current: Cold leakage current and leakage current after hydraulic pressure and sealing test should not exceed 0.5mA; hot leakage current at working temperature should not exceed 0.12mA;
4. Insulation resistance of heating tube: At factory inspection, cold insulation resistance should not be less than 50MΩ; after sealing test, long-term storage or after use, insulation resistance should not be less than 1MΩ;
5. Insulation withstand voltage: Cold electrical strength 1500V/min without flashover or breakdown.
III. Application Range:
Used for mold heating, it has been widely accepted by various industries in modern industrial applications. It is widely used in plastic and rubber machinery heating systems, production lines, heat treatment, chemical industry, electric power, ships, aviation, petroleum, cables, chemical fibers, food, medical and other industries. Used for molds, quenching, sawdust ignition, bag making machines, packaging machines, bread machines, printers, tin melting furnaces, flat vulcanizers, extruder barrels, water tanks, oil tank heating, and air dry burning.
