Comparison of cooling mode of nitride furnace. Factory Suppliers Manufacturers Quotes

Comparison of cooling mode of nitride furnace.

Comparison of cooling mode of nitride furnace.

Domestic pit type furnace is mainly used with furnace cooling way, the work to be done in nitriding after stop heating and heat preservation, along with natural cooling furnace body, and in the cooling process without nitrogen protection, cooling efficiency is low, and easy oxidation occurs in the cooling process, and influence of mould surface hardness and wear resistance, reduce the die life after nitriding. Bell type furnace in the process of cooling to the inner cover filling the nitrogen protection in the first place, and then cooling fan along the tangent cooling inside the cover, when the temperature down to 200 , and then by adopting the way of spray cooling in cooling water inside the mask to the specified temperature, cooling efficiency is higher. Under the same weight of the same workpiece, the well type furnace needs to be cooled for 48 hours, and the cover type furnace needs to be cooled for 10 hours. Due to the small size of the furnace, the horizontal furnace has the highest cooling efficiency and the best protection for the workpiece.

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