Supersonic arc spray machine

The arc spray equipments we produce have many different types. It can be equipped with one spray gun or several guns which can act as several independent machines. It can also be operated by hand or by auto tele-computer control. Depending on our strong and solid technology strength, we can develop high-power and special sized equipments according to customer’s requirement.

                  SX-600w                                            abrasive blaster

（we provide full-range technical training and instructing, take care of equipment installation and debugging, investigate our customer the effectiveness and performance of the equipment regularly, and take the responsibility of free repairing if any quality problem occur in one year.）

Supersonic arc spraying is a new technology developed from normal arc spraying technology. It has more excellent preformance compared with normal arc spraying, and recently has been applied broadly in fields such as machinery, chemical, electricity generating, metallurgy and especially has excellent performance in resolving the wearing and corrosion problems of boiler tube of electricity generating plant. Hence it brings safety and stable operation and good economic and social benefits to those power generating plants.

Supersonic arc sprayer sends two spraying metal wires to the two electric mouths of srpay gun, and the electric mouths link to the high-current and low-voltage two electrodes. When the metal wires contact with each other, there would be a short circuit which would make an arc, and the end of metal wire would be melted by the 5000℃heat produced by the arc. Then the melted wire would be pulverized to micromelting points by high-velocity compressed air. These micromelting points then are sprayed on the surface of workpiece by the compressed air with a supersonic speed(above 400m/s) to make a coating. The supersonic spray coating has smaller and compact Microstructure, and stronger bond strenth compared with normal arc spray coating.

SX-600 supersonic arc sprayer is developed on the base of SX-500 arc sprayer. It adopt Laval acceleration tube in the spray gun and when the compressed air get throught Laval tube the airflow speed will be markedly accelerated.

The newly developed supersonic arc spray machine consists of power supply, supersonic arc spray gun, wire feeder, control system and compressed air system. We develop this equipment precisely to make sure that it can work stably and effectively.

Characters

1. Stable and convenient

This equipment solidifyes the operating programs by integrated circuit to prevent from machine damage by misoperating of workers, and thus to protect the safety of operators and the equipment. It can spray a long distance away from the equipment by tele-operating switch. Also the equipment has steady output voltage and current, has good capacity of anti-interference and is sensitive against regulating so that the coating can be  even and oxidize burning loss be little to prolong its useful time working in bad environment.

2. High bond strength of coating

The bond strength of coating can reach 70Mpa compared with generally 30-40Mpa of common arc spray coating. The wire is well atomized into tiny particles and then the particles are sprayed with a high speed to make a good and fine coating which has the porosity equal or less 0.5%. By this way the wear-resistant and anti-corrosive ability of coating is markedly improved.

3. Workpiece won’t deform and its structure won’t be influenced.

Generally the temperature rise of workpiece won't exceed 100 ℃ when spraying, so the workpiece won't deform. And the spraying heat won't take effect directly on the surface so as to influence the structure of workpiece .

4. high effeciency and wide range usage.

The equipment has high spray and electric power effeciency, generally it can spray metal wires up to 15kg per hour. It's suit for onsite construction, and can use all kinds of metal and metalceramic meterials(solid and cored), such as alloy wires, Mo, Al, Zn, red copper, copper alloy, babbitt etc. It is widely applied in spraying wearable and anti-rusting coatings for boiler four kinds of tubes, coal pulverizing system(fan impeller and scroll casing), roller, dryer, axis, mould and so on.

5. wide spray gun extending range and pull / push way of wire feeding to pick

The spray gun is equiped with 30-meter-long cable, air tube and 8-core control cable, so it can spray at remote places about 30 meters away from the equipment . there are two ways of feeding spray wires, pull and push.

6. no need to change wearing parts frequently

We have patent conductive nozzle which is wearable and greatly enlarges useful time of wearing parts. This effectively helps to reduce the spray costs and improve working effeciency and coating quality.

7. convenient maintenance and repair.

We take maintenance and repair work into our consideration during designing the equipment and spray gun which make it convenient to maintain and repair.

main parameters:  

 We also afford all sizes of accessories such as sand blasting machine, water-oil separator, spray exposure suit, helmet, breathing filter with the equipment.