First, the Zinc-Aluminum 15 alloy coating offers superior corrosion resistance. Under various environmental conditions (such as industrial atmospheres and marine environments), it provides significantly longer protective service life than pure zinc or pure aluminum coatings at equivalent thicknesses. To achieve the same design service life, this alloy coating can be applied at thinner thicknesses, helping to conserve materials and reduce the overall cost of the coating system. Second, this coating provides more effective cathodic protection. Even when mechanical damage causes localized coating failure, Zinc-Aluminum 15 continues to offer sustained and reliable protection to the steel substrate through its sacrificial anode action, effectively suppressing corrosion propagation. This performance surpasses that of pure aluminum coatings and complements the protective mechanism of pure zinc coatings. Third, the Zn-Al 15 alloy coating exhibits superior comprehensive mechanical properties. Its abrasion resistance, erosion resistance, and overall coating strength all surpass those of pure zinc and pure aluminum coatings. Additionally, this alloy coating offers superior heat resistance, oxidation resistance, and thermal shock resistance, making it suitable for high-temperature environments or conditions with significant temperature fluctuations. Fourth, the coating structure is denser with low porosity, minimal corrosion products, and rapid self-sealing properties. This structural feature not only enhances protective efficiency but also improves coating aesthetics, ensuring sustained surface integrity and functionality across diverse application conditions. In summary, the Zinc-Aluminum 15 alloy coating represents a versatile, adaptable, and cost-effective corrosion protection material. It is particularly well-suited for industrial sectors demanding extended coating lifespan, high mechanical strength, and robust performance under demanding operational conditions.

The arc spraying zinc wire process uses an electric arc as a heat source. The core process is as follows: 1.Wire Feeding and Electrical Conductivity: Two zinc wires are fed uniformly and continuously into the two conductive nozzles of the spray gun through a wire feeding mechanism. These two conductive nozzles are connected to the positive and negative terminals of the spraying power supply, respectively. Before the tips of the zinc wires come into contact, the system must ensure that they remain electrically insulated. 2.Arc Generation and Melting: When the tips of the two zinc wires come into contact, a short circuit occurs, triggering the arc. The high temperature generated by the arc instantly melts the zinc wire. 3.Atomization and Acceleration: Simultaneously, a high-pressure compressed air stream (or high-speed gas stream) acts on the arc melting zone, breaking up and atomizing the molten zinc metal into tiny molten particles (droplets). 4.Spray and Deposition: This high-speed gas stream simultaneously accelerates these atomized zinc droplets and sprays them onto the pre-treated workpiece surface. 5.Coating Formation: The molten zinc particles rapidly cool, flatten, and deposit in layers upon impact with the workpiece surface, ultimately forming a dense zinc coating. Therefore, the entire arc spraying process is essentially a continuous, cyclical sequence of melting, atomization, and deposition steps.