Such equipment is easy to operate and carry, especially adaptable for onesite construction. Brief Introduction: ceramic rod spray is a way to melt down ceramic rod spray materials in oxyacetylene flame, atomize it into particles by compressed air and then eject particles to workpiece surface to form coating. It is characterized in low price, stable quality and easy operation. Sprayed workpieces have fine wear resistance. For example, the wear resistance of sprayed chromic oxide is equivalent to the one obtained through plasma spray. Such patent (200410016632.3) products, originally developed in China, are confirmed by Shanghai transormation of new and high-tech achievement project. Such equipment is easy to operate and carry, especially adaptable for onesite construction. 

QTB ceramic rod spraying gun wins Shanghai transformation of new and high-tech achievement project

The type and application of spray materials:

1. Aluminum oxide: white, fusing point~2050. Because of its high hardnes, it may be applied as wear resistant coating on machine sealing, plunger and shaft. It is also resistant to acid, alkaline and salt corrosion.2. Aluminum-Ti hybrid ceramic: with the increase of Ti02, coating color changes from light gray into bluish black with fusing point~ about 1800. Coating has low porosity and good fineness after being polished and it will not generate static during application, so Aluminum-Ti ceramic coating is extensively applied in chemical fiber spinning and weaving, printing and dye printing.3. Cr2O3: greenish black, compact coating, good fineness after being polished. It has good chemical stability and it does not dissolve into acid, alkaline, salt and other solvent, so such coating is extensively applied in various corrosive mediums. Besides, its hardness is equivalent to tungsten carbide and cobalt carbide, so it can be used in wear resistanat situation.     4. ZrO2: white, fusing point~2860. It is used in protection on high temperature fuelgas erosion resistant elements and preparation of thermal barrier coating.The compose of equipment  and parameters: spray gun + speed governor for wire feeder  Srpaying efficiency: sprying a ceramic rod per 6~8 minutes. (Φ6.3×600mm)Equpment size and weight: 250×250×120mm, total weight of whole set ~2 Kg. 

Auxiliary system requirements:

 

1. Air comprsser: the one with discharge capacity of 1.8M3/min can be applied to one spray gun. If sand blasting is taken into consideration, air compressor with discharge capacity of 3M3/min should be used.

2. Gas bag with volume of 0.6~1M3 and air filter are applied to achieve requirements for stable gas delivery and clean compressed air.

3. Oxy acetylene gas cylinders and its pressure regulating meter.

Thermal spray QTB Ceramic Rod Spray Gun