Annular diameter measuring and temperature measuring instrument for bearing steel rolling control and cooling control

Abstract

The invention discloses an annular diameter measuring and temperature measuring instrument for bearing steel rolling control and cooling control. The annular diameter measuring and temperature measuring instrument comprises an annular frame, wherein a plurality of telescopic mechanisms for supporting a detection probe to extend and retract are annularly arranged on the annular frame; and the detection probe is arranged on a telescopic mechanism. The annular diameter measuring and temperature measuring instrument for bearing steel rolling control and cooling control process comprises the following steps of carrying out data detection on the bearing steel entering a reducer through an annular diameter measuring instrument; pre-adjusting the control data of the reducer by using the detectiondata; carrying out data detection on the reduced bearing steel by using the annular diameter measuring instrument; and finely adjusting the pre-adjusted data of the reducer according to the detectiondata. According to the annular diameter measuring and temperature measuring instrument, by reasonably arranging the infrared transmitting and receiving probes with the pulses, the mechanism for supporting the probe stretching and retracting, the preset product specification-based detection probe-rolling piece distance, the angle parameter table and the like, the measuring device for the size and the temperature of the ring rolled piece special for the bearing steel control cooling control technology is realized, and conditions are provided for guaranteeing the production of high-quality bearing steel quality.

Description

Technical field [0001] The invention relates to a ring-shaped diameter measuring instrument for bearing steel controlled rolling and cooling. Background technique [0002] Bearing steel is mainly used to manufacture rotating bodies and rings of rotating bearings. The performance indicators generally include: high dimensional accuracy, high hardness, uniform hardness, high elastic limit, high contact fatigue strength, necessary toughness, certain hardenability, and Corrosion resistance in atmospheric lubricants. In order to meet the above performance requirements, strict requirements are imposed on the uniformity of the chemical composition of the bearing steel, the content and type of non-metallic inclusions, the size and distribution of carbides, and the decarburization. GCr15 high-carbon chromium bearing steel is the bearing steel with the largest production volume. The carbon Wc is about 1%, and the chromium content Wcr is about 1.5%, accounting for more than 80% of the total...

AI Technical Summary

Problems solved by technology

However, the measurement of the diameter of the hot rolled piece and the measurement of the temperature are usually completed independently on two devices. Generally, the ring-shaped equipment based on laser ranging is used to obtain the appearance profile and size of the rolled piece, while the measurement of the temperature is done by means of a set It is realized by the fixed infrared temperature measurement gun equipment above the rolling mill, which has the following defects: (1) the ring equipment probe based on laser distance measurement is fast and expensive, (2) the diameter measurement temperature measurement temperature is independent of each other and does not form a system, (3) ) The fixed infrared temperature measuring gun can only obtain the temperature at a certain point on the surface of the rolled piece, and cannot reflect the temperature of the ring section of the rolled piece

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