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Comprehensive optimization method of gap and overlap during strip shearing

A technology of overlap and clearance, used in the field of metallurgy

Active Publication Date: 2017-08-29
南通航力重工股份有限公司
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  • Abstract
  • Description
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Problems solved by technology

[0003] Aiming at various defects in the setting of overlapping amount and gap amount in the current strip shearing site, the present invention provides a comprehensive optimization method for gap amount and overlapping amount in the process of strip steel shearing, which can meet the different requirements of different downstream users for trimming quality, At the same time, considering the influence of steel type on the quality of edge trimming, according to the site conditions, optimize the amount of overlap and clearance on the edge trimming site, and improve the control and management level of edge trimming quality

Method used

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  • Comprehensive optimization method of gap and overlap during strip shearing
  • Comprehensive optimization method of gap and overlap during strip shearing
  • Comprehensive optimization method of gap and overlap during strip shearing

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Embodiment

[0027] In order to further illustrate the application process of the technology of the present invention, taking a certain finishing unit process section as an example, the application process and use effect of the method of the present invention on the spot are introduced in detail. The overall flow is as follows figure 1 Shown:

[0028] (1) Collect product parameters, product number i=1, collect relevant parameters as follows:

[0029] Table 1 Typical strip product parameters of a finishing unit

[0030]

[0031] (2) Define the relevant parameters, and determine the relevant parameters according to the on-site working conditions as shown in Table 2;

[0032] Table 2 Typical strip steel working condition parameters of a finishing unit

[0033]

[0034] (3) Initialize relevant parameters and perform calculations and experiments.

[0035] 3a) Now x=1, y=1, calculate δ tix =0.4, θ tix =0.08mm, ψ tiy = 0.44mm, set the gap and overlap according to the calculated valu...

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Abstract

The invention relates to a method for comprehensively optimizing a clearance amount and an overlap amount in the shearing process of a band steel. The method mainly comprises the following executing steps of: 1, collecting field product parameters; defining optimal overlap amount search related parameters; 3, defining optimal clearance amount search related parameters; 4, calculating a clearance amount influence coefficient; 5, calculating a clearance set variable of band steel trimming; 6, calculating an overlap amount influence coefficient; 7, calculating an overlap amount set variable; 8, carrying out field experimentation and quality evaluation; 9, determining whether to meet a lower limit of a quality requirement of a client; 10, calculating a trimming comprehensive quality function; 11, calculating a comprehensive quality evaluation function; 12, outputting optimal process parameters. The method can meet different requirements of different downstream users for trimming quality, and meanwhile, considers influence of a steel type on trimming quality; according to field experiments, an overlap amount and a clearance amount in trimming field are subjected to optimized setting; the control management level of trimming quality is improved.

Description

technical field [0001] The invention relates to the field of metallurgy, in particular to a strip steel shearing method. Background technique [0002] The process parameters of the strip trimming equipment in the strip trimming process - the setting of the gap amount and the overlap amount have a great influence on the strip shearing quality. Many trimming quality problems or equipment problems in the strip shearing process The cause of the damage can be attributed to the unreasonable setting of the gap and overlap of the trimming equipment. On the one hand, the evaluation of the trimming quality of strip steel at the trimming site is only at the level of "only evaluating the height of the buckle". In fact, in today's diversified market, downstream customers pay more attention to the evaluation of the trimming quality. There are three aspects of edge defect control, burr defect control, and unbalanced cutting ratio defect control. Different downstream customers may have dif...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B23D33/00
CPCB23D33/00
Inventor 白振华马筱聪钱承刘亚星崔亚亚常金梁张君
Owner 南通航力重工股份有限公司
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