Square furnace liner prepared from fireproof material and used for 2,500 DEG C tungsten-molybdenum sintering furnace

Abstract

The invention discloses a square furnace liner prepared from a fireproof material and used for a 2,500 DEG C tungsten-molybdenum sintering furnace. The square furnace liner comprises an inner liner (1), a middle liner (2) and an outer liner (3), wherein the inner liner (1), the middle liner (2) and the outer liner (3) are prepared from fireproof materials. The middle liner (2) sleeves the periphery of the inner liner (1), the outer liner (3) sleeves the periphery of the middle liner (2), the cross sections of the inner liner (1), the middle liner (2) and the outer liner (3) are all square, a first expansion gap is formed between the inner liner (1) and the middle liner (2), a second expansion gap is formed between the middle liner (2) and the outer liner (3), the ranges of the first expansion gap and the second expansion gap are both 5 mm-30 mm, and the inner liner (1), the middle liner (2) and the outer liner (3) are all arranged on a cork base. By means of the structure of the squarefurnace liner, the charge utilization rate of the furnace liner is increased, compared with a vertical round structure, the energy consumption of the square furnace liner is greatly reduced, the capacity is increased, and the market competitiveness of the product is effectively improved.

Description

technical field [0001] The invention belongs to the technical field of tungsten and molybdenum processing equipment, in particular to a square furnace lining for a 2500°C tungsten and molybdenum sintering furnace made of refractory materials. Background technique [0002] The intermediate frequency induction sintering furnace is an important equipment used in the sintering of special metals such as tungsten and molybdenum. The maximum temperature of the currently used tungsten and molybdenum sintering furnace is 2300°C. Since the environment and temperature of different parts of the sintering furnace are different, the refractory material of the furnace core The structure of the refractory is not the same, resulting in different parts of the refractory service life is not the same. [0003] At present, the conventionally used tungsten-molybdenum sintering furnace has a circular hearth. When the slab is sintered, the space utilization rate is low, the energy consumption is la...

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Problems solved by technology

[0004] The purpose of the present invention is to overcome the above-mentioned deficiencies in the prior art, to provide a square furnace lining for a 2500°C tungsten-molybdenum sintering furnace made of refractory materials, which overcomes 1 in the prior art: the conventionally used tungsten-molybdenum sintering furnace hearth is uniform When the slab is sintered, the space utilization rate is low, the energy consumption is large, and the efficiency is low, which cannot meet the sintering of a large number of slabs; 2: During the sintering process of the existing sintering furnace, due to insufficient charging, the slab It is easy to deform during the sintering process, which is not convenient for subsequent processing and manufacturing; 3: The deformed slab needs to be heated and corrected, which not only increases the production cost, but also affects the quality of the product due to the heating and pressure processing in the calibration process; 4: Issues such as the corresponding square lining for square tungsten-molybdenum induction sintering furnaces have not been raised in the prior art

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