A method for detecting side bending of intermediate billets
A detection method and equidistant technology, applied in the direction of length measuring device, metal processing equipment, metal rolling, etc., can solve the problems of increasing scrap loss, aggravating the degree of side bending, steel jam, etc., to reduce processing time and scrap loss, Prevent steel card accidents and ensure smooth progress
Active Publication Date: 2015-10-07
ANGANG STEEL CO LTD
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Problems solved by technology
However, due to various abnormal reasons such as uneven lateral temperature and wedge shape of the intermediate billet, side bending occurs at the head of the intermediate billet. When the side bending is serious, it will gradually accumulate in the finishing rolling process, and the degree of side bending will be aggravated. During the belting process, the impact on the side guide bar caused a steel jamming accident, which not only increased the loss of waste products, but also seriously affected the smooth progress of production
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[0020] The present invention will be further described below in conjunction with accompanying drawing.
[0021] The specific steps of the intermediate billet side bending detection method of the present invention are:
[0022] 1. Make the projection tube:
[0023] The light projection tube is a cylinder with a diameter of 50mm and a total length of 250mm. It is composed of a front light projection section 3 and a rear handle 5, wherein the light projection section 3 has a length of 150mm.
[0024] Five light projection holes 2 with a diameter of ￠2mm are arranged at equal intervals on one side of the light projection section 3, and the distance between two adjacent light projection holes 2 is 8mm. The front end of the light projection section 3 is threadedly connected with an end cap 1, and a blue light bulb is installed inside the light projection section 3. An electric storage device is installed inside the handle 5 , and a power switch 4 is arranged outside the handle 5 ....
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Abstract
The invention provides an intermediate billet lateral bending detection method. A light projection cylinder formed by a front light projection section and a rear handle is manufactured, five light projection holes are formed in one side of the light projection section at equal intervals, a light-emitting body with a blue light source is arranged in the light projection section, and an electrical storage device is arranged in the handle. When the detection is performed, blue lights projected from the five light projection holes are projected on a high-temperature intermediate billet, and deviation degree of the center line of the intermediate billet is detected by means of transverse distribution of the blue light points on the intermediate billet. The light projection cylinder is moved to enable the blue light points to transversely move on the moving intermediate billet, and longitudinal lateral bending degree of the intermediate billet is measured by means of a motion trail of the blue light points. By means of the intermediate billet lateral bending detection method, the lateral bending degree of the intermediate billet can be effectively detected, diagnosis and judgement can be performed on the lateral bending of the intermediate billet, then preset adjustment is performed on precision rolling, therefore, steel clamping accidents caused by impact to a lateral guide rule during threading are avoided, processing time and loss on defective products are reduced, and smooth production is ensured.
Description
technical field [0001] The invention belongs to the field of deviation detection, in particular to a detection method for the side bending degree of a hot-rolled intermediate slab. Background technique [0002] The function of the roughing mill in hot rolling is to open and rough-process the slab, and provide intermediate billet raw materials for the finish rolling. However, due to various abnormal reasons such as uneven lateral temperature and wedge shape of the intermediate billet, side bending occurs at the head of the intermediate billet. When the side bending is serious, it will gradually accumulate in the finishing rolling process, and the degree of side bending will be aggravated. During the process of belting, it hits the side guide rail and causes a steel jamming accident, which not only increases the loss of waste products, but also seriously affects the smooth progress of production. Contents of the invention [0003] The invention aims to provide a side bendin...
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IPC IPC(8): B21B38/02
Inventor 杨宏凯李庆贤邱桂丽张守峰白雪莲王健
Owner ANGANG STEEL CO LTD