Medium-frequency induction carburizing furnace

Abstract

The invention relates to the technical field of carburizing furnaces, in particular to a medium-frequency induction carburizing furnace. The medium-frequency induction carburizing furnace comprises afurnace body, wherein the top of the furnace body is connected with a furnace cover through a telescopic device, an inner tank is coaxially connected into the furnace body, a heating layer is fixedlyconnected between the inner tank and the inner wall of the furnace body, and electric heating wires are fixedly connected into the heating layer; an air draft device is connected to one side of the furnace body through a third pipe body, a fourth valve is fixedly connected to the third pipe body, an air purifying device is fixedly connected to the other side of the air draft device, a first pipe body is fixedly connected to the air purifying device, a first valve is fixedly connected to the first pipe body, and a second valve is fixedly connected to a second pipe body; and a bent pipe is further fixedly connected to the air purifying device through a fourth pipe body, a third valve is fixedly connected to the fourth pipe body, and a plurality of cooling fins are coaxially connected to theouter wall of the bent pipe. According to the medium-frequency induction carburizing furnace, the cooling efficiency of high-temperature gas can be improved, and rapid movement of the device can be realized under the action of rollers.

Description

technical field [0001] The invention relates to the technical field of carburizing furnaces, in particular to an intermediate frequency induction carburizing furnace. Background technique [0002] Carburizing is a kind of metal surface treatment. Carburizing is mostly low-carbon steel or low-alloy steel. The specific method is to place the workpiece into a single-phase austenitic steel with active carburizing medium and heat it to 900--950 degrees Celsius. In the nitritic zone, after holding for a sufficient time, the activated carbon atoms decomposed in the carburizing medium penetrate into the surface of the steel, thereby obtaining high carbon on the surface, and the core still maintains the original composition. Similar to low-temperature nitriding treatment, this is metal A common heat treatment process for materials. When the existing carburizing furnace is working, if the thermal insulation performance of the furnace body is poor, it will easily lead to internal heat ...

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Problems solved by technology

[0003] The purpose of the present invention is to provide a medium frequency induction carburizing furnace, which has the advantages of convenient movement and rapid cooling, and solves the problems in the prior art that the device is difficult to move, the furnace cover is not easy to lift and the cooling efficiency of the device is low

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