The structure of the internal heat vacuum heat treatment furnace is that the whole heating device (heating elements, refractories) and the workpiece to be treated are placed in the vacuum container, without the furnace tank, the whole furnace shell is a vacuum container. The furnace is equipped with electric heating elements, heat insulation screen, hearth, fan, conveyor and other components. The shell of the furnace is usually designed by double-layer water-cooling, so it can also be called cold-wall vacuum furnace.Vacuum-Sintering-Furnace-for-metal-parts-heat-treatment
Electric heating elements are mostly located in the middle of the heating chamber. They are arranged around the effective heating zone of the workpiece. The external structure is a metal radiation screen or a non-metal heat insulation screen. The furnace bed is installed in the lower part of the heating chamber. The fan structure is located in the cooling chamber. There are also heating and cooling systems installed at one end of the heating chamber, the upper part or the lower part, and the heat exchanger device constitute a forced air circulation heating and cooling system. The transfer mechanism is mostly located in the cooling chamber, some of which are connected with the material basket bracket outside the furnace. Different types of structure are adopted according to the use and some special requirements. The heating electrode is introduced through the furnace shell. The water cooling and sealing structure of the heating electrode should be considered in the design to ensure its good working characteristics.powder-metallurgy-heat-treatment-vacuum-sintering-furnace
At present, the internal heat vacuum heat treatment furnace has various forms. According to its shape and structure, it can be divided into vertical, horizontal, single chamber, double chamber and three chambers. The working cooling modes are divided into self-cooling, negative pressure gas-cooling, negative pressure oil-cooling and pressurized gas-cooling (2x10pa), high pressure gas-cooling (2x10pa) and ultra-high pressure gas-cooling (20x10pa). According to heat treatment technology, it is divided into quenching furnace and tempering furnace. It has single function and multi-function.Vacuum-induction-sintering-furnace-for-smelting-metal-powder
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