Steel rapid-heating device and steel rapid-heating method

Abstract

The invention discloses a steel rapid heating device and a steel rapid heating method. The device comprises a high-frequency power supply, a high-frequency heating ring and an automatic temperature control device with a steel heating opening which are electrically connected with the high-frequency power supply, a guide device with a ring guiding groove arranged in front of and at the back of the high-frequency heating ring, a temperature sensor which is electrically connected with the automatic temperature control device, wherein, the high-frequency heating ring is fixedly connected with a heating ring fixed mount connected with a supporting body, the heating ring fixed mount comprises a heat-resistant insulating material which surrounds the high-frequency heating ring, and the temperature sensor points and closes to the heated steel material; the method uses the device to heat steel material, and comprises the steps that: a switch of the high-frequency power supply is in open state, the needed temperature for steel heating is preset on the automatic temperature control device, and the heated steel material is conveyed to pass through the high-frequency heating ring. The device and the method have quick heating speed, wide range of finished heating temperature, low energy consumption, and small occupied area, can meet the continuous production of stream lines, are safe, steady and reliable, have no pollution and high temperature control accuracy, and can be used to adjust the mechanical performance of the steel material.

Description

technical field [0001] The invention relates to equipment for heating steel, and also to a method for heating steel using the equipment, more specifically, to a rapid heating device for steel and a rapid heating method for steel. Background technique [0002] For the steel to be processed that needs to be processed by various processes, heating is a common process condition. The existing steel heating technology mainly uses flame to heat the steel to be processed. This flame steel heating technology has the following defects: [0003] 1. Flame heating is to increase the temperature of steel through heat radiation and heat transfer, which consumes a lot of energy and has low heating efficiency; [0004] 2. The thermal inertia of the flame heating technology is large, and the temperature of the heated steel is not easy to control, so it is difficult to realize the continuous production of steel heating; [0005] 3. Due to the directionality of the heating flame, there are di...

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Problems solved by technology

[0003] 1. Flame heating is to increase the temperature of steel through heat radiation and heat transfer, which consumes a lot of energy and has low heating efficiency;

[0004] 2. The thermal inertia of the flame heating technology is large, and the temperature of the heated steel is not easy to control, so it is difficult to realize the continuous production of steel heating;

[0005] 3. Due to the directionality of the heating flame, there are differences in the direction of the heating energy provided, and the heated steel has uneven heating due to the directionality of the heating flame, which makes the product quality difficult to control;

[0006] 4. Flame heating technology usually has large heat radiation, which makes the working environment poor

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