CN-116975713-B - Steel product mechanical property allowance analysis and adjustment method and device

CN116975713BCN 116975713 BCN116975713 BCN 116975713BCN-116975713-B

Abstract

The embodiment of the application provides a method and a device for analyzing and adjusting the mechanical property allowance of a steel product, which relate to the technical field of product performance analysis, and the method comprises the steps of confirming the allowance of the mechanical property data of the product based on the process capability statistic of the mechanical property data of the product; setting the adjustment target of the allowance, adjusting the allowance based on the technological parameters in the steel manufacturing process, and analyzing whether the adjusted allowance meets the adjustment requirement. According to the technical scheme, the mechanical properties of the product are analyzed through the allowance of the mechanical properties of the product, and the mechanical properties of the product are adjusted in a allowance adjustment mode, so that the stability level of the product performance is improved.

Inventors

WANG MINGZHE
ZHANG LICHUN
WU NAI
ZHANG YUGONG
LIU XIAOCUI
ZHANG GUOHONG
GUAN JIANDONG
ZHANG YUNHE
ZHANG YANG

Assignees

北京首钢股份有限公司
首钢股份公司迁安钢铁公司

Dates

Publication Date: 20260508
Application Date: 20230718

Claims (5)

1. The method for analyzing and adjusting the mechanical property allowance of the steel product is characterized by comprising the following steps of: confirming the allowance of the mechanical property data of the product based on the process capability statistics of the mechanical property data of the product; setting an adjustment target of the allowance, and adjusting the allowance based on technological parameters in the steel manufacturing process; analyzing whether the adjusted allowance meets the adjustment requirement; The process capability statistic based on the product mechanical property data confirms the allowance of the product mechanical property data, and the process capability statistic comprises the following steps: Based on the process capability statistics of the product mechanical property data, confirming the process capability characteristics of the product mechanical property data, confirming the distribution characteristics of the product mechanical property data and confirming the relationship between the product mechanical property data and the specification upper line and lower line; Confirming whether the mechanical property data of the product has allowance according to the process capability characteristics, the distribution characteristics and the relation between the upper line and the lower line of the specification of the mechanical property data of the product; Based on process capability statistics of the product mechanical property data, confirming distribution characteristics of the product mechanical property data, including: confirming the specification limit median, median and specification limit ten-digit of the mechanical property data of the product; when the median of the specification limit minus the median is greater than or equal to ten digits of the specification limit, the distribution characteristic of the mechanical property data of the product is biased to the lower specification limit; When the median of the median minus the specification limit is greater than the specification limit ten-digit, the distribution characteristic of the mechanical property data of the product is biased to the upper specification limit; When the median of the specification limit minus the median is smaller than the specification limit tenth or the median of the median minus the specification limit is smaller than or equal to the specification limit tenth, the distribution characteristic of the mechanical property data of the product is centered; the setting of the adjustment target of the margin includes: Setting a mechanical property index of a product as an adjustment target of the allowance according to the requirement of a customer, and setting an adjustment target range of the allowance; The adjusting the margin based on the process parameters in the steel manufacturing process comprises: Analyzing the correlation between the technological parameters and the mechanical properties of the product; confirming the technological parameters influencing the mechanical properties of the product according to the correlation between the technological parameters and the mechanical properties of the product, and marking the technological parameters as key technological parameters; adjusting the data value of the key process parameter to adjust the margin; analyzing whether the adjusted allowance meets the adjustment requirement comprises the following steps: And comparing the adjusted allowance with the allowance adjustment target range, and judging that the allowance meets the adjustment requirement when the adjusted allowance is within the allowance adjustment target range, otherwise, not meeting the adjustment requirement.
2. The method of claim 1, wherein validating the process capability features of the product mechanical property data based on the process capability statistics of the product mechanical property data comprises: and confirming CPK of the mechanical property data of the product, judging based on the CPK, wherein when the CPK is larger than a set value, the CPK represents that the process capability of the mechanical property data of the product is stable, and when the CPK is smaller than or equal to the set value, the CPK represents that the process capability of the mechanical property data of the product is insufficient.
3. The method of claim 1, wherein validating the relationship of the product mechanical property data to the specification up-and-down line based on the process capability statistic of the product mechanical property data comprises: confirming the upper specification limit and the lower specification limit of the mechanical property data of the product; When the minimum value of the mechanical property data of the product is larger than the specification lower limit and the maximum value of the mechanical property data of the product is smaller than the specification upper limit, the mechanical property data of the product is shown to be in the specification upper and lower limit range; when the minimum value of the mechanical property data of the product is smaller than the lower specification limit and the maximum value of the mechanical property data of the product is larger than the upper specification limit, the mechanical property data of the product exceeds the lower specification limit and exceeds the upper specification limit at the same time; When the minimum value of the mechanical property data of the product is smaller than the lower specification limit and the maximum value of the mechanical property data of the product is smaller than the upper specification limit, the mechanical property data of the product exceeds the lower specification limit; and when the minimum value of the mechanical property data of the product is larger than the lower specification limit and the maximum value of the mechanical property data of the product is larger than the upper specification limit, indicating that the mechanical property data of the product exceeds the upper specification limit.
4. A method according to claim 3, wherein the determining whether there is a margin in the product mechanical property data according to the process capability characteristic, the distribution characteristic, and the relationship with the specification up-line and the specification down-line of the product mechanical property data comprises: when the process capability of the mechanical property data of the product is stable, the distribution characteristic is centered and is within the upper limit and the lower limit of the specification, judging that the mechanical property data of the product has allowance; When the process capability of the mechanical property data of the product is stable, the distribution characteristic is biased towards the upper limit of the specification, and the mechanical property data of the product exceeds the upper limit of the specification but does not exceed the lower limit of the specification, judging that the mechanical property data of the product has allowance; And when the process capability of the mechanical property data of the product is stable, the distribution characteristic is biased towards the lower limit of the specification, and the mechanical property data of the product exceeds the lower limit of the specification but does not exceed the upper limit of the specification, judging that the mechanical property data of the product has allowance.
5. The device for analyzing and adjusting the mechanical property allowance of the steel product is characterized by comprising the following components: a confirmation unit for confirming the allowance of the mechanical property data of the product based on the process capability statistics of the mechanical property data of the product; An adjustment target setting unit configured to set an adjustment target of the margin; An adjusting unit for adjusting the margin based on a process parameter in the steel manufacturing process; The analysis unit is used for analyzing whether the adjusted allowance meets the adjustment requirement; The process capability statistic based on the product mechanical property data confirms the allowance of the product mechanical property data, and the process capability statistic comprises the following steps: Based on the process capability statistics of the product mechanical property data, confirming the process capability characteristics of the product mechanical property data, confirming the distribution characteristics of the product mechanical property data and confirming the relationship between the product mechanical property data and the specification upper line and lower line; Confirming whether the mechanical property data of the product has allowance according to the process capability characteristics, the distribution characteristics and the relation between the upper line and the lower line of the specification of the mechanical property data of the product; Based on process capability statistics of the product mechanical property data, confirming distribution characteristics of the product mechanical property data, including: confirming the specification limit median, median and specification limit ten-digit of the mechanical property data of the product; when the median of the specification limit minus the median is greater than or equal to ten digits of the specification limit, the distribution characteristic of the mechanical property data of the product is biased to the lower specification limit; When the median of the median minus the specification limit is greater than the specification limit ten-digit, the distribution characteristic of the mechanical property data of the product is biased to the upper specification limit; When the median of the specification limit minus the median is smaller than the specification limit tenth or the median of the median minus the specification limit is smaller than or equal to the specification limit tenth, the distribution characteristic of the mechanical property data of the product is centered; the setting of the adjustment target of the margin includes: Setting a mechanical property index of a product as an adjustment target of the allowance according to the requirement of a customer, and setting an adjustment target range of the allowance; The adjusting the margin based on the process parameters in the steel manufacturing process comprises: Analyzing the correlation between the technological parameters and the mechanical properties of the product; confirming the technological parameters influencing the mechanical properties of the product according to the correlation between the technological parameters and the mechanical properties of the product, and marking the technological parameters as key technological parameters; adjusting the data value of the key process parameter to adjust the margin; analyzing whether the adjusted allowance meets the adjustment requirement comprises the following steps: And comparing the adjusted allowance with the allowance adjustment target range, and judging that the allowance meets the adjustment requirement when the adjusted allowance is within the allowance adjustment target range, otherwise, not meeting the adjustment requirement.

Description

Steel product mechanical property allowance analysis and adjustment method and device Technical Field The application relates to the technical field of product performance analysis, in particular to a method and a device for analyzing and adjusting the mechanical property allowance of a steel product. Background The mechanical property of the product is taken as an important index for product delivery control, whether the product has delivery conditions or not is directly influenced, and the use stability of a user is ensured, so that the core competitiveness of the product is determined. In the prior art, stability analysis aiming at controlling mechanical properties of products is usually performed by a multi-system analysis method by means of external analysis software, so that convenience and high-efficiency analysis of product data cannot be realized, and the control capability level of stable product properties cannot be improved by adjusting after analysis. Disclosure of Invention The embodiment of the application provides a method and a device for analyzing and adjusting the mechanical property allowance of a steel product, which realize the datamation of the mechanical property allowance of the product in a datamation identification mode of the mechanical property of the product, and complete the analysis of the mechanical property of the product and the adjustment of the allowance. Other features and advantages of the application will be apparent from the following detailed description, or may be learned by the practice of the application. According to a first aspect of an embodiment of the present application, there is provided a method for adjusting a balance of mechanical properties of a steel product, including: confirming the allowance of the mechanical property data of the product based on the process capability statistics of the mechanical property data of the product; Adjusting the margin based on process parameters in the steel manufacturing process; setting an adjustment target of the allowance, and analyzing whether the adjusted allowance meets an adjustment requirement. In some embodiments of the present application, based on the foregoing solution, the determining the product mechanical property allowance based on the mechanical property process capability statistic includes: Based on the process capability statistics of the product mechanical property data, confirming the process capability characteristics of the product mechanical property data, confirming the distribution characteristics of the product mechanical property data and confirming the relationship between the product mechanical property data and the specification upper line and lower line; And confirming whether the mechanical property data of the product has allowance according to the process capability characteristics, the distribution characteristics and the relation between the mechanical property data of the product and the upper line and the lower line of the specification. In some embodiments of the present application, based on the foregoing scheme, identifying the process capability feature of the product mechanical property data based on the process capability statistic of the product mechanical property data includes: and confirming CPK of the mechanical property data of the product, judging based on the CPK, wherein when the CPK is larger than a set value, the CPK represents that the process capability of the mechanical property data of the product is stable, and when the CPK is smaller than or equal to the set value, the CPK represents that the process capability of the mechanical property data of the product is insufficient. In some embodiments of the present application, based on the foregoing scheme, determining the distribution characteristics of the mechanical property data of the product based on the process capability statistics of the mechanical property data of the product includes: confirming the specification limit median, median and specification limit ten-digit of the mechanical property data of the product; when the median of the specification limit minus the median is greater than or equal to ten digits of the specification limit, the distribution characteristic of the mechanical property data of the product is biased to the lower specification limit; When the median of the median minus the specification limit is greater than the specification limit ten-digit, the distribution characteristic of the mechanical property data of the product is biased to the upper specification limit; and when the median of the specification limit minus the median is smaller than the specification limit ten-digit or the median of the median minus the specification limit is smaller than or equal to the specification limit ten-digit, the distribution characteristic of the mechanical property data of the product is centered. In some embodiments of the present application, based on the foregoing solution, based on the