Electromagnetic induction rivet heater

Abstract

The electromagnetic induction rivet heater consists of one heater on the main body, one ejecting mechanism and one cooling system. The heater consists of lining and induction coil on the outer wall of the lining; the ejecting mechanism consists of one cylinder and one material ejecting pin capable of entering into or withdrawing from the lining in the same axis; and the cooling system has circulation water union communicated with the induction coil and the material ejecting pin. The lining is inclined and has material discharging end higher than the entering end of the material ejecting pin. The cooling system is equipped with low water pressure warning and water failure protecting system. The present invention has simple rivet heating process, low cost, high efficiency and other advantages.

Description

technical field [0001] The invention relates to a rivet heating device. technical background [0002] At present, the riveting production of traction beams, corbels, buffer beams and other components of domestic rail vehicles is still using the production method of heating rivets in the workshop with an open coke oven. This production process requires cumbersome processes such as crushing and screening coke on site, breaking wood for ignition, cleaning furnace ash, igniting coke with wood, and heating rivets. Because the coke furnace fire is uneven and the heating parts are buried in the coke, it is very easy for the operator to control the heating time and temperature incorrectly, and overheating and overburning often occur, resulting in the occurrence of waste products. The coke furnace heats the rivet for a long time, which will easily cause the rivet to oxidize and decarburize, and thick oxide skin will form on the surface, which will affect the strength and quality of ...

AI Technical Summary

Problems solved by technology

Due to the uneven fire of the coke furnace and the heating parts buried in the coke, it is very easy for the operator to control the heating time and temperature inaccurately, and the phenomenon of overheating and overburning often occurs, resulting in the occurrence of waste products.

If the coke furnace heats the rivet for a long time, it is easy to cause oxidative decarburization of the rivet, and a thick oxide skin is formed on the surface, which affects the strength and quality of the riveting

The thermal efficiency of coke furnace heating is low, which is a serious waste of energy

The coke furnace heats the rivets slowly, and it takes about 1 minute to burn a rivet on average, which makes the production efficiency low

When the coke furnace burns, it produces a large amount of smoke and harmful sulfur dioxide gas, which fills the workshop, causing serious air pollution. The crushing, screening, and cleaning of wood and coke will also pollute the environment.

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