System and method for optimizing cutting of rolling mill

A rolling mill, thermal cutting technology, applied in the direction of metal rolling, shearing device, metal rolling, etc., can solve the problems of difference, delay of rolling mill operation, etc.

Inactive Publication Date: 2002-10-23
GENERAL ELECTRIC CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This processing technique can result in a considerable difference between the longest bar and the shortest bar on the cooling bed
For small orders, this variance can cause handling issues with cold saws causing mill run delays

Method used

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  • System and method for optimizing cutting of rolling mill
  • System and method for optimizing cutting of rolling mill
  • System and method for optimizing cutting of rolling mill

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] figure 1 is a simplified schematic diagram of a bar working mill 8 according to one embodiment of the present invention. Other types of bar working mills are also possible and the invention is not limited to the embodiments described here.

[0012] like figure 1 As shown, one embodiment of a bar working mill 8 may include a roughing mill 10, an oscillating shear 11, pinch rolls 12, measuring rolls 13, an intermediate mill 14, and a shear 15, a finishing mill 16, trimming and splitting shears. Cutting machine 18, cooling bed 20, cold saw 22.

[0013] The bar rolling machine components 10-18 can be used to roll the billet or billet into bars of different specifications according to customer orders. Any suitable bar rolling mill may be used to roll billets or billets into round or square shapes, eg by reducing area and increasing length. In some embodiments, bar mill 8 may include several stands to assist in bar processing. For example, ten to twenty three stands may ...

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PUM

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Abstract

A method of controlling a bar processing mill having an outlet and a cooling bed for producing bar of predetermined cold length. The method includes, for a first bar in a work order, calculating a long hot cut length based at least in part on a predetermined cold length. In addition, the method includes: if the long thermal cutting length is greater than the minimum cooling bed length, and if the number of layers of rods to be processed on the cooling bed is less than a predetermined value, adjusting the long thermal cutting length according to the total length of the rods output from the outlet.

Description

technical field [0001] The present invention relates to systems and methods for controlling a bar working mill. More specifically, the present invention relates to systems and methods for determining the optimum thermal cut length to minimize the number of cold saw cuts when processing bar stock. technical background [0002] In a typical bar mill, customers order bars at a predetermined cold length (ie, the finished length of the bar). A typical bar working mill has a crop and divideshear for cutting the hot bar coming out of the bar mill stand and a cold saw for cutting the bar on the cooling bed The final cut is made after the length has cooled. [0003] In the case of special bar mills, such as special steel (SBQ) mills, many customer orders are for relatively small batches of bars. It is usually not economical to start up a rolling mill for a single small order, therefore, multiple small orders have to be processed together. Customer requests for custom steel models...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/16B21B15/00B21B37/70B21B43/00B23D36/00
CPCB21B37/70B21B2015/0014B23D36/00Y10T83/0476Y10T83/541Y10T83/0448Y10T83/041Y10T83/2037
Inventor M·W·布罗维尔
Owner GENERAL ELECTRIC CO
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