Based on practical experience and considering technological parameter, bonding strength, manufacturing cost and other comprehensive factors, we developed an advanced spray welding method for valve industry, it is oxygen-acetylene spray welding process.
Except the cost advantage of oxygen-acetylene spray welding spraying coating, the coating is typical as-welded bonding, with excellent bonding strength, the bonding strength between coating and substrate is up to （39-42kg/mm2）the strength of smooth appearance. It’s especially suitable for those equipment which with harsh requirements and working under severe environments because the coating alloy materials ﹙Ni-Co-WC﹚have the advantages of abrasive resistance HRC65-72 and high temperature resistance. It’s hard to control the temperature when spraying a big workpiece, then affecting the stability of operation. The shortages of the spraying technique limit the range of application in valve industry. Our company has mastered the way to overcome the problems mentioned above, ensuring the stability of product quality extremely. And there is a complete set of strict quality inspection process for the finished coating, what’s more, excellent subsequent processing capacity and timely after-sale service, making us have a good reputation around the world.
There are a lot of problems in today's industrial production, such as high temperature oxidation, abrasion and medium corrosion, then we should find an efficient way to solve those problems because they will lead working surface losing efficacy. Spraying technique can repair failed old artifacts and pre-protect new workingpieces.
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