Vertical pulling type cold rolling experiment machine unit strip steel thickness indirect measurement method

Abstract

The invention relates to a measuring method for the thickness of a cold-rolled strip steel which comprises a measuring device and a calculating method. The device includes a rolling mill, tension oil pressure sensors, hydraulic tension cylinders and displacement sensors; the middle of a mill set is a cold rolling mill; two hydraulic tension cylinders are separately arranged at two sides of the inlet and the outlet of the rolling mill ; two collets are arranged in front of the hydraulic tension cylinders; two displacement sensors are arranged in the hydraulic tension cylinders; the tension oilpressure sensors are arranged at the upper surfaces of the two hydraulic tension cylinders; the upper surface of the rolling mill is provided with an electrically pressed screw thread; the base of the rolling mill is provided with a hydraulic cylinder. The calculating method can be used for precisely measuring the rolling speed of the strip steels which are clamped by the collects at two sides with the displacement sensors in the hydraulic tension cylinders at the two sides and indirectly measure the thickness of the strip steels according to a constant second-flow principle during the rolling. The method has the advantage of carrying out indirect measurement on the thickness of the strip steels under the condition of not mounting a thickness tester; the measuring method can precisely, stably and quickly provides the actual thickness data of the strip steels during the testing, which avoids the operation difficulty of manual measurement and the inaccuracy of the data.

Description

technical field [0001] The invention relates to a method for measuring the thickness of cold-rolled strip steel. Background technique [0002] As an important tool for cold rolling manufacturers to conduct cold rolling process research and cold rolled steel development, the cold rolling experimental unit has been paid more and more attention by enterprises. When conducting cold rolling experiments, the measurement accuracy of the strip thickness during the rolling process directly affects As far as the final experimental results are concerned, it is impossible to install expensive ray thickness gauges like the production rolling mills in the experimental cold rolling mill as the experimental equipment. The traditional cold rolling experimental mills are generally installed with contact thickness gauges or manually measured by the experimenter. Strip thickness , but as a new type of cold rolling experimental equipment - the compact equipment layout of the straight-pull cold r...

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Problems solved by technology

[0002] As an important tool for cold rolling manufacturers to conduct cold rolling process research and cold rolled steel development, the cold rolling experimental unit has been paid more and more attention by enterprises. When conducting cold rolling experiments, the measurement accuracy of the strip thickness during the rolling process directly affects As far as the final experimental results are concerned, it is impossible to install expensive ray thickness gauges like the production rolling mills in the experimental cold rolling mill as the experimental equipment. The traditional cold rolling experimental mills are generally installed with contact thickness gauges or manually measured by the experimenter. Strip thickness , but as a new type of cold rolling experimental equipment - the compact equipment layout of the straight-pull cold rolling mill is not conducive to the installation of contact thickness gauges, and it is not convenient for operators to perform manual measurement of strip thickness. In addition, manual measurement is wasteful A lot of time, and the accuracy of the measurement cannot be guaranteed

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