High-temperature thermal power spinning heating method and device

Abstract

The invention discloses a high-temperature thermal power spinning heating method and device. The device comprises a circular sensing ring which is mounted on a rotating wheel frame and moves up and down synchronously with the rotating wheel frame as well as an infrared temperature measuring head; a spinning core mold is sleeved with the circular sensing ring located below rotating wheels; when a pipe blank is mounted on the spinning core mold, the pipe blank is sleeved with the circular sensing ring, and the circular sensing ring is in clearance fit with the peripheral wall of the pipe blank; the infrared temperature measuring head is located between the rotating wheels and the circular sensing ring, that is, the horizontal plane where the infrared temperature measuring head is located is lower than the horizontal plane where the rotating wheels are located and is higher than the horizontal plane where the circular sensing ring is located; when the pipe blank is mounted on the spinning core mold, the infrared temperature measuring head always points to the area on the pipe blank and between the rotating wheels and the circular sensing ring, and the area is an infrared temperature measuring area of the pipe blank; and the circular sensing ring is used for heating the heating area of the pipe blank. According to the device, through the cooperative effect of the circular sensing ring and the infrared temperature measuring head, thermal power spinning forming of the pipe blank can be performed at the relatively high temperature, and thermal power spinning machining of difficult-to-deform metals is realized.

Description

technical field [0001] The invention relates to the field of plastic processing technology in the discipline of mechanical engineering, in particular to a high-temperature heat and strong rotation heating method and device. Background technique [0002] Flow spinning is a processing method for obtaining cylindrical parts with high dimensional accuracy, high shape accuracy and high mechanical properties, which overcomes some defects of general seamless extrusion forming parts, such as poor wall thickness uniformity, roundness and straightness. Poor, or even mechanical properties can not meet the requirements. The flow spinning (a powerful spinning) method has been applied in aerospace, military equipment, auto parts and other fields. At present, for the powerful spinning of some difficult-to-deform materials, it is generally carried out by heating the blank. The heating methods used are basically flame heating or furnace heating. The former directly sprays the flame onto t...

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Problems solved by technology

The former directly sprays the flame onto the spinning blank. The temperature control ability of this method is poor, and there is a large temperature deviation. It is more suitable for the case where the forming temperature is low and the temperature range is large; However, when the blank is taken out of the heating furnace, the temperature drops continuously during the forming process. Although the method of flame heating can also be used to maintain the temperature, the temperature stability cannot be achieved after all.

Especially for the case where very high forming temperature is required and the temperature range is narrow, none of the above methods can meet the heating requirements.

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