Plasma Spray Nozzle and Electrode for Sg100, 730 Copper Tungsten Anode

• Customization: Available
• Type: Alloy Electrode
• Cooling System: Nature Cooling
• Model NO.: Sg100
• Function: Plasma Generated Body
• Materials: Copper and Tungsten
• Apply in: Plasma Spray Coating Industry
• Making Method: Back-Casting
• Nozzle Classify: Pure Copper and Copper with Tungsten Insert
• Style: Standard
• Transport Package: Carton
• Specification: 39*21*29cm
• Origin: China
• Production Capacity: 20000PCS/Per Month
• Package Size: 10.00cm * 10.00cm * 10.00cm
• Package Gross Weight: 1.000kg

Product Description

Plasma spray nozzle and electrode of Weilai new materials are your best choice!
·Top quality tungsten electrode with excellent arcing performance and lifespan.
·The seamless combination of tungsten and copper ensures the stable operation of your process.
·A comprehensive product series widely applicable to spray guns such as F4, F1, 9M, 6M, 3M, SG-100 etc.
 

SG-100 plasma thermal spray anode and cathode models

 

Product Description

Product Description

Functions and Properties of the SG100 Plasma Spray Nozzle and Electrode

1. Overview

The SG100 plasma spray system is widely used in thermal spraying applications to deposit coatings (e.g., ceramics, metals, or composites) onto surfaces for wear resistance, thermal insulation, or corrosion protection. The nozzle and electrode are critical components that directly influence plasma generation, stability, and coating quality.

 

2. Plasma Spray Nozzle

Functions:

• Plasma Arc Formation: The nozzle constricts and stabilizes the plasma arc generated between the cathode and anode, ensuring a high-temperature, high-velocity plasma jet.

• Gas Acceleration: It directs and accelerates plasma-forming gases (e.g., argon, hydrogen, or nitrogen) to create a supersonic jet (~Mach 2-3) for efficient particle heating and acceleration.

• Coating Deposition: The nozzle shape (e.g., convergent-divergent design) affects spray pattern, particle velocity, and melting efficiency, influencing coating density and adhesion.

Key Properties:

• Material: Typically made from high-purity copper (or copper alloys) for excellent thermal conductivity and resistance to thermal fatigue.

• Cooling Mechanism: Often water-cooled to prevent overheating and prolong service life.

• Geometry: Optimized internal contours (e.g., Laval nozzle design) to enhance gas dynamics and plasma stability.

 

3. Plasma Spray Electrode (Cathode/Anode)

Functions:

• Cathode (Negative Electrode): Emits electrons via thermionic emission, initiating and sustaining the plasma arc.

• Anode (Positive Electrode): Completes the electrical circuit, allowing current flow and plasma generation.

• Arc Stability: The electrode design affects arc root movement, minimizing fluctuations for consistent plasma performance.

Key Properties:

• Cathode Material: Usually thoriated tungsten (Th-W) or lanthanated tungsten (La-W) due to high electron emissivity and erosion resistance.

• Anode Material: Often oxygen-free copper (OFC) for high thermal/electrical conductivity and durability.

• Cooling System: Water-cooled to manage extreme heat (plasma temperatures can exceed 10,000°C).

• Wear Resistance: Electrodes degrade over time due to arc erosion; high-quality materials extend lifespan.

 

4. Combined Role in Plasma Spraying

• The nozzle-electrode assembly ensures:

  • Stable plasma generation for uniform particle heating.

  • Controlled particle acceleration for dense, well-bonded coatings.

  • Efficient heat management to prevent component failure.

Performance Factors:

• Gas Flow Rate: Affects plasma temperature and velocity.

• Current/Voltage Settings: Influence arc stability and coating quality.

• Nozzle Wear: Erosion can alter spray characteristics, requiring periodic replacement.

5. Applications

• Aerospace: Thermal barrier coatings (TBCs) for turbine blades.

• Automotive: Wear-resistant coatings for engine components.

• Industrial: Corrosion protection for pipelines and machinery.

Conclusion

The SG100 plasma spray nozzle and electrode are essential for generating a high-energy plasma jet, ensuring precise and efficient coating deposition. Their material properties, cooling mechanisms, and geometric design directly impact spraying performance, making them critical for industrial and advanced material applications.

Plasma thermal spray gun consumables
As we all know, the most critical components of plasma thermal spray guns such as F4, F1, 9MB, 7MB, 3M7, SG-100,SinplexPro,TriplexPro and so on are the nozzle and electrode . These two products are also consumable parts and are one of the most important consumables in plasma thermal spraying.
Our company is a manufacturer specializing in the production of plasma spray electrodes and nozzles (also known as plasma cathodes and anodes, tungsten copper cathodes, and tungsten copper anodes).

 

 

SG-100 plasma spray gun
    The SG100 plasma spray gun produced by Praxair is a very flexible spray gun that can be used in a variety of application scenarios. Its operating power is 80KW. If you have higher requirements for coatings, or require large-volume production, or small-volume testing, the SG100 spray gun can be used very well.
    This spray gun has two modes: internal powder feeding and external powder feeding. Different modes can provide multiple incident angles, obtain better spraying speed, or mix multiple spraying materials.
Different modes, matched with different hardware, can form different working modes. We can provide suitable nozzles (anode) and electrodes (cathode) for different modes.
What material is used for the anode?
As you can see, all copper materials are used on the market, but there are many types of copper materials, and the purity and composition of different copper materials are different. For specific industries that require special treatment of copper materials, we have been supplying copper anodes to different industries and are very clear about customers' material requirements in different industries.
Anode matching:
The product accessories provided by Praxair have high precision, and general processing manufacturers can provide similar shapes. However, there is a very big gap in the actual control of product size.
We have been providing anode and cathode accessories for various plasma spraying service providers, and we can control the size very accurately.


SG-100 plasma thermal spray anode and cathode models
 

Product model	Product name	Related product model
WLE-SG100-129	SG100 electrode	843083129
WLE-SG100-720	SG100 electrode	841083720
WLN-SG100-730	SG100 nozzle	02083-730
WLN-SG100-145	SG100 nozzle	03083-145
WLN-SG100-165	SG100 nozzle	03083-165
WLN-SG100-175	SG100 nozzle	03083-175

If you have any needs, users are welcome to come for consultation. Our company has a group of experienced technical and sales teams who will serve you wholeheartedly.

 

Certifications

 

Packaging & Shipping

You can choose cartons or plywood case:(Our packing)

 

 

The technical advantages of our company's copper tungsten electrode for spraying:
Weilai new materials use high-performance tungsten electrodes to ensure good arcing performance and ablation resistance,Realize seamless combination of tungsten and copper. Compared with traditional brazing, the bonding strength between tungsten and copper is high, and the contact area, resistance and heat dissipation are more uniform, which greatly improves the product performance. Therefore, our Thermal spraying electrode has a good service life.




Zhuzhou Weilai New Materials Technology Co., Ltd. is a manufacturing company!
Zhuzhou Weilai New Materials Technology Co., Ltd. is a manufacturing company!
Zhuzhou Weilai New Materials Technology Co., Ltd. is a manufacturing company!

If you need these products, please contact with me!
If you need these products, please contact with me!
If you need these products, please contact with me!