Method for measuring thickness of copper pipe sheath and outer diameter of conductor in cable production process

Abstract

The invention discloses a method for measuring the thickness of a copper pipe sheath and the outer diameter of a conductor in a cable production process. The method comprises the following steps: inputting a copper pipe sheath thickness calculation formula and / or a conductor outer diameter calculation formula into a data processor; obtaining the width and thickness of a raw material copper strip of the rolled copper pipe sheath and the diameter of a raw material copper rod, and inputting the width and thickness into a data processor; acquiring the strip feeding speed of the raw material copperstrip, the rod feeding speed of the raw material copper rod and the output speed data of a finished cable in a cable production line in real time, and transmitting the acquired data to the data processor in real time; and substituting the received data into the pre-input formulas by the data processor, calculating the thickness of the copper pipe sheath and / or the outer diameter of the conductorin the finished cable, and outputting the current thickness of the copper pipe sheath and / or the outer diameter of the conductor to the outside. According to the measuring method, the thickness of thecopper pipe sheath and / or the diameter of the copper conductor in the finished cable can be monitored in real time without cutting off the finished cable, and the surface and the interior of the finished cable cannot be damaged in the measuring process.

Description

technical field [0001] The invention relates to a method for measuring cable parameters, in particular to an online method for measuring the thickness of a copper tube sheath and the outer diameter of a conductor in the production process of a fireproof mineral insulated cable. Background technique [0002] Fireproof mineral insulated cable (BTTZ) is usually composed of copper tube sheath, cylindrical copper conductor and magnesium oxide filling material. The copper tube is formed by rolling, and the copper conductor is formed by rolling and drawing the raw copper rod. The thickness or diameter of the copper tube sheath and the conductor will change after each rolling mill. On the premise of ensuring that the quality of the finished cable meets the requirements of relevant standards, in order to control the manufacturing cost of the enterprise, it is necessary to precisely control the thickness of the copper tube sheath and the diameter of the copper conductor in the finishe...

AI Technical Summary

Problems solved by technology

In the prior art, there is no method and special equipment for online real-time measurement of the thickness of the copper tube sheath and the diameter of the copper conductor in the fireproof mineral insulated cable. The thickness of the sheath and the diameter of the copper conductor are measured

Especially when the specifications of the products produced are adjusted and changed, in the process of equipment operation and debugging, it is necessary to cut the finished cable many times and measure the thickness of the copper tube sheath and the diameter of the copper conductor, which is time-consuming, laborious and costly. Real-time monitoring of the thickness of the copper tube sheath and the diameter of the copper conductor cannot be realized

Images