Help Me Choose A Heater
Production:
Diameter (Metric): 3mm, 4mm, 5mm, 6mm, 6.5mm, 8.0mm, 10mm, 12mm, 12.5mm, 14mm, 16mm, 18mm, 20mm (Non-standard can be customized)Diameter (Inch): 1/8", 1/4", 3/8", 1/2", 5/8", 3/4" (non-standard can be customized)Jacket Material: A stainless steel 304 B. 310S C.NCF800.The maximum temperature of the heating element jacket: 750 ℃Resistive material: NiCr8020High voltage stability (temperature)
Rated voltage ≤24V~500V DC, >24V~1500V ACInsulation resistance (500V DC unheated): ≥50MΩThe maximum leakage current (253V AC unheated): ≤0.5mALength error: ± 1.5mmPower error (not heated): + 5% ~10%Input voltage: 12V~440V (non-standard can be customized)Terminal unheated length: <3mm~20mmNon-terminal unheated length: <3mm~20mm
Connecting Wires:
(1). glass fiber insulation nickel wire (temperature 450 degrees -750 degrees)
(2). Crimp Teflon line (temperature 250 degrees)(3). Crimp silicon insulated wire (temperature 200 degrees)(4). Crimp fiberglass insulated nickel wire (temperature 450 degrees)
1. The basic structure of the heat pipe:
When making heat pipe, we use stainless steel for housing, uniforms spiral heating alloy wire (nickel-chrome 8020) along the central axis of the tube, fill and compact the space with magnesium oxide sand having good insulation and thermal conductivity, seal the mouth of the pipe with liquid glue, silicone or ceramic glue(we can do moistureproof design if it is in the wet environment) and make connecting wires with pure nickel (copper) which has high temperature resistant. The metal heating element can heat air, mold, and various liquids.
2. Special design of heat pipe:
According to different use state, safety and installation requirements of heat pipe, heat pipe includes sealing structure, 90 degree elbow outlet, flange fixing, crimping corrugated pipes, crimping stainless steel mesh, pipe with screw device, built-in thermocouples, fuses and other structures.
3. Property, application and life of heat pipe:
Heat pipe is made by placing heating elements in a metal tube and filling crystalline magnesium oxide powder with good heat resistance, thermal conductivity and insulating in the gap closely and then managed by other treatments. Heat pipe is heating element designed specially to convert electrical energy into heat energy. It has a simple structure, high mechanical strength, high thermal efficiency and is safe, reliable and easy to install. Heat pipe can be widely used in plastic molds, packaging machinery, extruders, automation equipment, medical equipment, heat-pressing dies and so on.It has more than 10,000 hours service life under normal use.
4. Calculation of heat pipe resistance:
For examples: 220V1500W electric tubeP = 1500 watts (power) U = 220 V (voltage) Find the I (current)I = P / U = 1500 / 220≈6.82 AnnOhm's law seeking: R (resistance)R = U / I = 220 / 6.82≈32.27 Europe
5. Notes on the use of heat pipes:
1. Heat pipe should be kept in a dry place.2. Do distinguish positive electrode and negative electrode when wiring heat pipe with thermocouples.3. Pay attention to the voltage when connecting the power supply with heat pipe.
Cartridge Heaters also called Single-head Heating Tube
Cartridge heater is a tubular, heavy-duty, industrial Joule heating element (resistance), used in the process heating industry, usually customized and manufactured to a specific power density according to its intended application. They are highly compacted and have a surface power density of up to 50 W/cm2.
It can be used to heat any kind of substance or material, such as oil, air, or sugar. However, a common application is plastic pellets, which are melted to form molded plastic parts. An example of such a process is the "hot runner" process. Cartridge heaters are similar in structure to tubular heaters but tend to have a higher power density.
Applications:
1. Mould Heating
2. Heating System of Plastic Machinery
3. Pharmaceutical Production Line
4. Heat Treatment Test in Laboratory
5. Chemical Industry
Cartridge Heaters are typically inserted into drilled holes to heat platens and molds or used as liquid immersion heaters.
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