Plating solution of amorphous nickel-tungsten-molybdenum alloy, amorphous nickel-tungsten-molybdenum alloy plated layer and polycrystalline silicon ingot furnace

The invention relates to a plating solution of amorphous nickel-tungsten-molybdenum alloy. The plating solution comprises the following components of 175-240g/L of nickel salt, 60-80g/L of tungstate, 10-30g/L molybdate, 6-14g/L of ammonium chloride, 15-30g/L of boric acid, 20-35g/L of phosphorous acid, 3-8g/L of sulphamic acid, 0.5-1.5g/L of N-propenyl bromide quinoline and 1-2g/L of para toluene sulfonamide. The plating solution of the amorphous nickel-tungsten-molybdenum alloy can form an amorphous nickel-tungsten-molybdenum alloy layer on the inner wall of a furnace body of an ingot furnace, the amorphous nickel-tungsten-molybdenum alloy layer is heated and then crystallized, forming a stable state, and heat resistance is very high. When heat is transmitted to the nickel-tungsten-molybdenum alloy layer on the inner wall of the furnace body, the layer has a high reflecting property and prevents heat energy radiation losses, thermal losses during ingot casting are reduced, the power of the ingot furnace is f