Muffle furnace special for tungsten-molybdenum alloy

Abstract

The invention relates to a muffle furnace special for tungsten-molybdenum alloy. The muffle furnace comprises a support, a furnace body and a control device. One end of the furnace body is provided with a feed mechanism. The other end of the furnace body is provided with a discharge mechanism. The furnace body comprises a housing, an insulating layer and a hearth. A heating pipe and longitudinally and continuously arranged carrier molybdenum boats are disposed in the hearth. The feed mechanism comprises a furnace door and a propulsion mechanism. The propulsion mechanism comprises a motor, a reducer and a worm-gear device. The discharge mechanism comprises a discharge passage, a water cooler and a discharge door. Both the furnace door and the discharge door are 45 degrees angled to the horizontal plane. The muffle furnace has the advantages that a mechanical automatic feeder is used for feeding, so that automation level is high; the furnace door is automatically reset through gravity and a spring, so that possible 'blasting', which hurts people, caused by the traditional furnace door connected with the furnace body through screws is avoided; the molybdenum boats are in drawer structure, so that the molybdenum boat rows can move unidirectionally for continuous sintering of tungsten-molybdenum alloy through the automatic feeder; the muffle furnace allows for continuous feeding and discharging and is high in operating efficiency and safe and reliable to use.

Description

[0001] technical field [0002] The invention relates to a muffle furnace, in particular to a special muffle furnace for processing tungsten-molybdenum alloy. Background technique [0003] Non-ferrous metals tungsten and molybdenum are refractory metals. The production of tungsten-molybdenum alloys is generally processed by powder metallurgy sintering. The high-temperature processing is usually carried out in a muffle furnace, and hydrogen is used as a protective gas during the sintering process. At present, the existing muffle furnaces for processing tungsten-molybdenum alloys usually have a single-door structure, and the door needs to be opened for feeding or discharging, so continuous processing cannot be performed, and the degree of automation is low. The semi-finished products are sent to the muffle furnace, not only the production efficiency is low, but also there are flammable and explosive hydrogen leakage and high temperature radiation, and the working environment i...

AI Technical Summary

Problems solved by technology

At present, the existing muffle furnaces for processing tungsten-molybdenum alloys usually have a single-door structure, and the door needs to be opened for feeding or discharging, so continuous processing cannot be performed, and the degree of automation is low. Semi-finished products are sent to the muffle furnace, not only the production efficiency is low, but also there are flammable and explosive hydrogen leakage and high temperature radiation, and the working environment is poor

[0004] The furnace door of the existing muffle furnace is generally a straight opening structure, that is, the furnace door is perpendicular to the horizontal plane after being closed, and the furnace door is generally connected to the furnace body by screw fastening. And mixed with hydrogen, which will produce a "blasting" phenomenon, and sometimes even hurt people due to "blasting", resulting in low safety of the muffle furnace

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