Graphite Electrode for Resistance Heating Furnace
Product Overview
Jincheng graphite electrodes for resistance heating furnaces are high-quality, precision-machined graphite components designed for electric resistance heating in various industrial furnaces. These electrodes provide excellent electrical conductivity and high-temperature stability for reliable furnace operation.
Our resistance heating electrodes are manufactured from high-density, fine-grain graphite that provides consistent electrical resistivity and long service life at elevated temperatures. Custom diameters and lengths are available to match different furnace designs and power requirements.
Key Features
- Consistent electrical resistivity for uniform heating and stable furnace performance
- High density graphite for good mechanical strength and long electrode life
- High temperature resistance up to 2000°C in inert or reducing atmospheres
- Precision machined ends for good contact with furnace power connections
- Good thermal shock resistance for repeated heating and cooling cycles
- Custom sizes available for various furnace configurations and power ratings
- Various graphite grades to match different performance and budget requirements
- Easy to install and replace during routine furnace maintenance
Technical Specifications
| Parameter | Value |
|---|---|
| Material | High density fine grain graphite |
| Density | 1.70 - 1.85 g/cm3 |
| Shore Hardness | 55 - 75 HS |
| Electrical Resistivity | 8 - 15 uOhm·m |
| Flexural Strength | 40 - 70 MPa |
| Compressive Strength | 70 - 120 MPa |
| Max Working Temperature | 2000°C (in inert atmosphere) |
| Diameter | 30 mm - 500 mm (custom) |
| Length | Up to 2000 mm (custom) |
| End Thread | Custom per furnace design |
Applications
- Electric resistance furnaces for heat treatment and sintering
- Car bottom furnaces for large batch heat treatment
- Pit furnaces for vertical heat treatment applications
- Bell jar furnaces for vacuum and controlled atmosphere processing
- Glass melting furnaces for electric glass melting applications
- Furnace repair and maintenance for furnace service companies
Why Choose Jincheng Graphite Electrodes?
- Furnace-grade graphite optimized for resistance heating applications
- Precision CNC machining with accurate dimensions and threaded ends
- Experience with various furnace types and designs
- Custom electrode design based on your furnace specifications and power requirements
- Competitive pricing as a direct graphite component manufacturer
- Fast delivery - standard electrodes within 1 week, custom within 2 weeks
- Technical support for electrode grade selection and furnace optimization
- Global shipping to furnace builders and industrial heat treaters worldwide
Frequently Asked Questions
Q1: What diameter and length electrodes do you recommend?
A: Electrode size depends on your furnace power rating, voltage, and current requirements. Please provide your furnace specifications for a recommended electrode size and grade.
Q2: How long do resistance heating electrodes last?
A: Electrode life depends on furnace temperature, atmosphere, and operating conditions. Under typical inert atmosphere furnace conditions, graphite electrodes last 6-12 months before needing replacement.
Q3: Can you machine threaded ends on the electrodes?
A: Yes, we can machine custom threads on electrode ends to match your furnace power connection design. Please provide your thread specifications or existing electrode samples.
Q4: Do you offer different graphite grades for different furnace temperatures?
A: Yes, we offer various graphite grades from economical medium-grain to premium fine-grain isostatic graphite, depending on your furnace temperature, atmosphere, and performance requirements.
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