The application relates to a scale-inhibiting
alloy and a preparation method thereof and a scale-inhibiting sheet manufactured from the scale-inhibiting
alloy. The scale-inhibiting
alloy comprises the following components: 55wt%-70wt% of Cu, 15wt%-30wt% of Zn, 5wt%-15wt% of Ni, 0.5wt%-3wt% of Si, 1wt%-5wt% of P, 0.001wt%-0.05wt% of a modifying element, and the balance of inevitable impurities, wherein the modifying element is one or more of B, Ti and Zr. The scale-inhibiting alloy adds the
Si element for strengthening, so as to improve the mechanical properties and
corrosion resistance; the
Zn element is added as a negative
electrode and the P element is added as a positive
electrode, the alloying forms alpha phase+
beta phase+multi-element brittle compound phase, can well excite the active current, and prevents the generation of water scale. The scale-inhibiting alloy has low production cost, meets the comprehensive requirements of cost,
processing performance,
corrosion resistance, mechanical properties, health and
market acceptance of
water treatment products, and has a good application prospect.