Plating solution and coating of amorphous nickel-tungsten-molybdenum alloy and polysilicon ingot furnace

Abstract

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 further reduced, and thus the production cost and energy consumption of a cast ingot are reduced. The invention further discloses an amorphous nickel-tungsten-molybdenum alloy plated layer and a polycrystalline silicon ingot furnace containing the amorphous nickel-tungsten-molybdenum alloy plated layer.

Description

technical field [0001] The invention relates to the field of photovoltaic technology, in particular to a plating solution and coating of an amorphous nickel-tungsten-molybdenum alloy and a polysilicon ingot casting furnace. Background technique [0002] Polycrystalline ingot furnace is widely used as the main tool for silicon ingot casting. The silicon material crystallizes into polysilicon after a long time of melting. The melting of silicon material requires a high temperature of 1420 degrees, and it needs to be kept for a long time. The heating of the ingot furnace requires a lot of heat energy, which belongs to the industry with high energy consumption. At present, the heating of the ingot furnace is converted into heat energy in the form of electric heating, so power consumption has become one of the main costs of ingot casting. [0003] Traditionally, the direction of reducing energy consumption is to change the structure and shape of the furnace body, but the desig...

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Problems solved by technology

[0005] Based on this, it is necessary to provide an amorphous nickel-tungsten-molybdenum alloy coating that can reduce the energy consumption of the ingot furnace and basically does not change the structure of the furnace body, aiming at the problems of high energy consumption of the traditional ingot furnace and affecting the structure of the furnace body. liquid

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