A box-type nitriding multipurpose furnace

Abstract

The invention discloses a box type nitriding multipurpose furnace. The furnace comprises a front chamber and a rear chamber. The furnace is characterized in that: a hollow household bag structure is arranged between the front chamber and the rear chamber, a sealing door is arranged between the hollow household bag structure and the front chamber, a heat-insulation door is arranged between the hollow household bag structure and the rear chamber, the hollow household bag is provided with a gas inlet and a gas outlet, the gas inlet is connected to a nitrogen gas input channel, and the gas outlet is connected to the rear chamber. A front work tool transmission device is arranged in the front chamber, the front work tool transmission device comprises a front transmission mechanism and a front push-and-pull cart, which is arranged on the exterior of the front chamber, and the front push-and-pull cart is arranged on the front transmission mechanism. A rear work tool transmission device is arranged in the rear chamber, the rear work tool transmission device comprises a rear transmission mechanism and a rear push-and-pull mechanism, and the rear push-and-pull mechanism is arranged on the rear transmission mechanism. The box type nitriding multipurpose furnace achieves gas nitriding or gas nitrocarburizing through adding furnace pressure, at the same time the degree of automation is improved, so that the product quality is more stable.

Description

technical field [0001] The invention relates to heat treatment equipment, in particular to a box-type nitriding multipurpose furnace. Background technique [0002] Sealed box-type multi-purpose furnaces have been widely used in my country's heat treatment industry, mainly carburizing furnaces. The technology of box-type multi-purpose furnaces for carburizing is relatively mature, while nitriding furnaces are less. In the production of nitriding, due to the difference between the nitriding process and the carburizing process, the requirements for the operability and processability of the equipment are also different. The temperature of nitriding process is lower than that of carburizing process, which will not exceed 700°C. The uniformity of furnace temperature cannot rely on heat radiation, but should be dominated by heat convection and heat conduction. The pressure in the furnace is high, and the airtightness of the furnace body is required. High, high temperature control ...

AI Technical Summary

Problems solved by technology

[0004] 1. There are hidden dangers in security, which mainly rely on manual prevention;

[0005] 2. The cooling form of the processed workpiece is single, only oil cooling, or only air cooling, or only furnace cooling, and the production efficiency is low;

Poor treatment of waste gas generated during production will also pollute the space of the production site;

[0007] 4. The furnace pressure of the multi-purpose furnace is small during work, resulting in unstable product quality;

[0008] 4. The degree of automation of the equipment is not high, and it is more dependent on the technical level of the operator, and the product quality is unstable

Images