Arc Spraying Equipment, Zinc and Aluminum Spraying Equipment

The high-speed arc spraying machine is a high-efficiency, low-energy-consumption advanced technology product developed by our company. It uses an electric arc as its heat source to melt metal wires, then atomizes and cools them with compressed air, transforming the metal wires into fine particles that are sprayed at high speed onto the surface of pre-treated workpieces, thereby achieving an ideal coating.

Category:

Arc Spraying Equipment

Power system

Key words:

电弧喷涂技术电弧喷涂设备喷锌喷铝喷铜防腐蚀

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Product Description

Arc Spraying Equipment Zinc and aluminum spraying equipment

Supersonic Arc Spraying Supersonic Arc Spraying is a new technology developed on the basis of conventional Arc Spraying. Supersonic arc-sprayed coatings exhibit significantly superior performance compared to conventional arc-sprayed coatings and have been widely adopted in recent years across various industries, including machinery, chemical engineering, power generation, metallurgy, steel structures, shipbuilding, naval vessels, and transportation at ports and terminals.

Supersonic arc spraying involves feeding two filamentary metallic coating materials into two conductive nozzles within an arc spray gun, with each nozzle connected to one of the two electrodes—a high-current, low-voltage terminal. When the metal filaments advance and come into contact with each other, the resulting arc generated by the short-circuit instantly reaches temperatures exceeding 5,000°C, melting the ends of the filaments. These molten filaments are then atomized into fine molten droplets by a highly compressed air stream traveling at speeds approaching twice the speed of sound. The molten droplets are propelled toward the workpiece surface at supersonic velocities—exceeding 400 m/s—by the compressed air stream, thereby forming an arc-sprayed coating. Compared to conventional arc-sprayed coatings, supersonic arc-sprayed coatings exhibit finer coating microstructures, denser coating architectures, and higher bonding strengths.

The SX-600 supersonic arc spray gun was developed on the basis of the SX-500 arc spray gun. It features an added Laval nozzle accelerating airflow chamber in its gun design. When compressed air passes through the Laval chamber, the airflow velocity increases significantly, enabling the atomized particles to achieve supersonic spraying.

Our company’s high-speed arc spraying machine can spray a variety of alloy wires. Ceramics, molybdenum, aluminum, zinc, copper, and more. This equipment can spray zinc, aluminum, copper, stainless steel, and other metallic materials onto any surface. It also supports coating processes for non-metallic surfaces. The unit is mobile, easy and safe to operate, and its working range can extend up to 100 meters.

Features:

Scope of application:

● Zinc and aluminum spraying for corrosion protection of steel structures such as transmission towers, bridges, sluice gates, and ships.

●Spray-on repair for surface wear on components such as paper-making dryer cylinders, printing rollers, and crankshafts.

● Electrode spraying in the capacitor and porcelain industries, etc.

Main Technical Parameters :

This equipment set consists of a high-speed arc spray gun and an arc spraying power supply. Additionally, the following auxiliary equipment is required: an air compressor, an air filter, and a wire-reel stand.

Features of High-Speed Arc Spraying Guns ：

It features an integrated electro-pneumatic switch, making operation more convenient and enabling long-distance high-altitude work.
The particle's flight speed reaches Over 420 m/s.
Axial airflow velocity reaches 600 m/s.
Coating deposition rate is greater than 75%.

Spray gun weight, air pressure, air consumption, wire feed force, speed adjustment range, input voltage 2.65 kg > 0.5 MPa > 1.85 m³/min > 8 kg Stepless speed regulation ≤ 24 V (DC)

Features of the SX-600 Supersonic Arc Spraying Machine:

The company’s latest supersonic arc spraying machine consists primarily of a main power supply, a supersonic arc spray gun, a wire-feeding mechanism, a control system, and a compressed air system. The equipment is meticulously manufactured, boasts reliable performance, and exhibits excellent operational stability, providing the most fundamental guarantee for obtaining high-quality coating layers.

1. Stable performance, easy operation

This machine uses integrated circuits to hard-code its functions into a program. During operation, the machine automatically executes standardized procedures, thereby preventing operator errors that could damage the equipment and ensuring both operator safety and equipment integrity. The machine is also equipped with a remote control switch, allowing spray coating operations to be carried out even when the operator is located at a considerable distance from the main unit. The power supply for the supersonic arc spraying equipment... ： The output voltage and current are extremely stable, with strong anti-interference capability, sensitive adjustment, uniform spraying, minimal oxidation and burn-off, and the ability to operate reliably for long periods under harsh conditions; the equipment boasts a long service life.

2. Available in various wire sizes, with high coating adhesion strength.

The wire diameter is available in a range of sizes—from φ1.6 to φ3.0 mm—making it suitable for a wide variety of spray coating applications and helping businesses save on materials while boosting economic efficiency. The coating’s bonding strength can reach up to 70 MPa, whereas the bonding strength of conventional arc spraying typically stands at only 30–40 MPa. Moreover, the particles are ejected at high velocity with excellent atomization, resulting in fine particle size and a smooth, highly dense coating (porosity ≤ 0.5%). Consequently, the coating exhibits significantly improved wear resistance and corrosion resistance.

3. The workpiece remains undeformed and its microstructure is unaffected.
The temperature rise during spraying of general workpieces does not exceed 100℃, so the workpieces remain undeformed. Moreover, the heat from spraying does not directly act on the surface of the workpieces, meaning that the spraying process has no adverse effect on the microstructure of the workpieces either.

4. High spraying efficiency and wide applicability
It boasts high spraying efficiency and excellent energy utilization, capable of spraying over 40 kg of metallic wire per hour. This equipment is ideal for on-site construction and can be used to spray a wide variety of metallic and metal-ceramic materials—both solid wire and powder-core wire—including various alloy wires, ceramics, molybdenum, aluminum, zinc, red copper, copper alloys, stainless steel, Babbitt alloy, and more. It finds extensive application in wear- and corrosion-resistant coatings for structural steel, mechanical equipment, crankshafts, camshafts, starters, generators, fan impellers, shaft components, molds, chemical processing equipment, printing machinery, paper-drying cylinders, power generation, metallurgy, and other industries.

5. The spray gun has a large extension range, and wire feeding via push-pull operation is optional.
The spray gun can be equipped with a 30-meter cable, an air hose, and an eight-core control cable. The spray gun’s operational radius from the main unit can reach up to 30 meters, enabling it to spray in remote job sites. This machine offers two wire-feed options: pull-feed or push-feed.

6. Wear parts do not need to be replaced frequently.
Components such as conductive nozzles, featuring patented designs, are highly durable, significantly extending the service life of wear parts, reducing production costs, enhancing work efficiency, and effectively improving coating quality.

7. Easy to repair and maintain

The design of the host and spray gun takes maintenance and servicing into account, adopting a simple-to-disassemble, compact structural approach.