Split type electromagnetic preheating furnace for thermal assembly

Abstract

The invention provides an electromagnetic furnace capable of preheating an irregular connection device in a thermal assembling technological process. The electromagnetic furnace comprises a plurality of arc-shaped excitation coils and a plurality of plane excitation coils, wherein the plurality of arc-shaped excitation coils and the plurality of plane excitation coils are in parallel connection to meet the requirement of surrounding the irregular connection device, and the excitation coils are connected to a control circuit in an inserted mode. According to the requirements of the thermal assembling technology, the preheating temperature is set, and therefore the purposes of installation and disassembly of the connecting device can be achieved.

Description

technical field [0001] The invention relates to a heat-fit workpiece preheating process in the field of equipment engineering installation, in particular to an induction cooker. Background technique [0002] At present, the induction cooker is widely used, and the control technology is very mature. In the traditional shrink-fitting process, most of the temperature difference assembly methods use heating methods, some put the workpiece into oil with a high flash point for oil bath heating or torch baking, some use an oven to heat, and some use a coil It is wound on the surface of the work piece and heated by electricity, and oil bath heating and torch baking are often used on the assembly site. The maximum temperature that can be reached by oil bath heating depends on the nature of the oil, and is generally below 200°C. When heating by other methods, the temperature of the workpiece can be higher than 200°C, but from the perspective of metallography and heat treatment, the ...

AI Technical Summary

Problems solved by technology

In the field of engineering technology, especially for the preheating process of heat-set workpieces in equipment installation engineering, the complete set of preheating equipment has a single variety, the preheating process is complicated, labor-intensive and time-consuming, especially the oil bath heating process also causes a certain degree of environmental pollution. Many processes still have problems such as uneven heating and inaccurate temperature control.

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