Guide method for online negative deviation control in steel machining process

A technology of processing and negative deviation, which is applied in the direction of rolling mill control devices, metal processing equipment, metal rolling, etc., can solve the problems of fine guidance that cannot be negative deviation, profit loss, batch scrap steel, etc., and achieve timely guidance and control accuracy High, easy-to-control effects
CN106001127AInactive Publication Date: 2016-10-12HANZHONG STEEL LTDRP OF SHAANXI STEEL GRP
4 Cites 7 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HANZHONG STEEL LTDRP OF SHAANXI STEEL GRP
Publication Date
2016-10-12
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention discloses a guide method for online negative deviation control in a steel machining process. The guide method comprises the following steps: arranging loops among all finishing mills, so as to ensure that metal flow is stored among the finished mills, and the loops can be normally opened, delayed and stabilized; constructing a negative deviation control model f(x), setting a sampling interval, and integrating the negative deviation control model f(x) and the sampling interval into a PLC; before steel rolling, averaging the loop adjusting amount of the to-be-rolled steel in a weighted manner by adopting the negative deviation control model f(x), and averaging the loop adjusting amount of the rolled steel after the steel rolling; and performing subtraction on two groups of obtained numerical values by adopting the PLC to obtain the variation delta f of negative deviation, recording the variation delta f of negative deviation into a human-computer interface, and displaying the variation delta f of negative deviation through a site screen, so that the online negative deviation control can be completed by an operator according to the information displayed on the site screen. According to the guide method disclosed by the invention, the operator is guided to complete the online negative deviation control by utilizing the variation of the timely loop adjusting amount, and the guide method has the advantages of being high in control precision, and timely and convenient in guidance.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of metal processing control methods, and in particular relates to an online negative deviation control guidance method in the steel processing process. Background technique

[0002] In recent years, as the steel situation has become more severe, ideas such as reducing costs and increasing efficiency, improving indicators, stabilizing performance, and reducing the cost per ton of steel have become the main guiding ideology for various iron and steel enterprises to deal with the cold winter of steel.

[0003] In rolling line production, negative deviation control is a key measure to reduce costs, increase efficiency, and improve indicators. It is an important way for enterprises to benefit, but it is also a control problem. There are two main methods: one is to use the steel length negative difference control guidance method, that is, to use the length of the finished product to guide the post workers to carry...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More