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Calculation method for deformation resistance of common steel of GCr15, 60Si2Mn and 42CrMo

A technology of deformation resistance and calculation method, applied in the field of steel rolling, to achieve the effect of high calculation accuracy

Pending Publication Date: 2020-07-31
JIANGYIN XINGCHENG SPECIAL STEEL WORKS CO LTD
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Problems solved by technology

[0006] Deformation resistance=deformation degree coefficient a*(deformation temperature coefficient b+deformation speed coefficient c);

Method used

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  • Calculation method for deformation resistance of common steel of GCr15, 60Si2Mn and 42CrMo
  • Calculation method for deformation resistance of common steel of GCr15, 60Si2Mn and 42CrMo
  • Calculation method for deformation resistance of common steel of GCr15, 60Si2Mn and 42CrMo

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Embodiment Construction

[0035] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

[0036] This example discloses a calculation method for the deformation resistance of commonly used steel types GCr15, 60Si2Mn, and 42CrMo. The nonlinear regression of the high-temperature deformation resistance is performed through the deformation resistance chart. Through analysis and research, the deformation resistance can be expressed by the following formula:

[0037] Deformation resistance=deformation degree coefficient a*(deformation temperature coefficient b+deformation speed coefficient c).

[0038] Among them, the effect of deformation degree on deformation resistance can be obtained by polynomial regression: very close results:

[0039] The influence of GCr15 deformation degree on deformation resistance is used for polynomial regression:

[0040] Deformation coefficient a=41.66ε^5-98.48ε^4+90.49ε^3-41.33ε^2+9.609*ε+0.071

[0041] ...

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Abstract

The invention relates to a model for calculating the deformation resistance of common steel of GCr15, 60Si2Mn and 42CrMo. A deformation resistance and deformation degree, deformation temperature and deformation speed calculation formula are found out through deformation resistance chart regression; polynomial regression is adopted for the deformation degree influence coefficient, logarithmic regression is adopted for the deformation speed influence coefficient, logarithmic regression is adopted for the deformation speed temperature influence coefficient, the regression method simplifies complex problems, and the formula has the biggest characteristic of being high in calculation precision and can be used for checking the capacity of rollers, speed reducers and motors on a production site.

Description

technical field [0001] The invention relates to a calculation method of deformation resistance during slab rolling, in particular to a calculation method of deformation resistance of common steel types GCr15, 60Si2Mn and 42CrMo. It belongs to the technical field of steel rolling. Background technique [0002] The high-temperature deformation resistance model of metal materials is the basis of thermal processing design. With the development and application of computer-aided design technology, the high-temperature deformation resistance model has become a necessary condition for process design. The research on the high-temperature deformation resistance of metal materials has been carried out at home and abroad. A lot of work, such as Eklund's unit pressure model, Sims' unit pressure model, Misaka-assisted deformation resistance model, Shida Shigeru's deformation resistance model, Tselikov's unit pressure model, Zhou Jihua, Guan Kezhi's deformation resistance model , the nonl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F30/20B21B1/22G06F119/14
CPCB21B1/22B21B2001/225
Inventor 李翔祯饶立华陈情华柳琴曾海霞
Owner JIANGYIN XINGCHENG SPECIAL STEEL WORKS CO LTD
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