Metallurgy external material quality auditing method

Abstract

The invention provides a quality auditing method for metallurgical external materials, and belongs to the technical field of metallurgical material quality inspection. The method comprises the following steps: collecting all inspection results of target material quality inspection indexes in a preset time period as historical data; determining a difference value range based on the historical data; and the target material is checked in combination with the qualified range and the difference range of the target material. According to the method, the material index value is detected through the preset qualification range, whether the material is qualified or not is judged, meanwhile, the difference range is determined through the historical data calculation standard, the material quality inspection index value is judged again based on the difference range, and the quality conditions of the materials provided by the same supplier can be compared under the condition that supplier sensitive information is not leaked; and the quality of externally fed materials is ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of metallurgical material quality inspection, in particular to a metallurgical external incoming material quality auditing method. BACKGROUND

[0002] In the fields of metallurgical, chemical and other industrial production, the quality inspection of purchased raw materials, fuels, auxiliary materials and alloys is a key link to ensure product qualification rate and production stability. The traditional inspection and testing process usually includes sample collection, laboratory testing, data entry and manual auditing, and finally the qualified test data is uploaded to the enterprise-level management system (such as MES, ERP). Among them, the data auditing link needs to ensure the accuracy, compliance and conformity of the test results with the purchase contract or technical standard, and its efficiency and reliability directly affect the material release speed and the operation efficiency of the supply chain.

[0003] At present, the inspection and testing laboratory management system (LIMS) is generally used in the industry to realize the electronic entry and management of test data. The usual process is: after the test data is entered into the system, the test items, result range, supplier information and other information are manually compared and confirmed by special data auditing personnel, and then manually uploaded to the superior system after confirmation. To avoid interference of supplier information with the fairness of the audit, some systems use permission isolation or temporary shielding measures, but the core auditing link still relies on manual judgment, and full-process automation has not been achieved. The existing technology has the following significant defects: first, manual auditing is limited by personnel operation efficiency, especially when the amount of test data is large or multiple levels of review are required, the auditing period is prolonged, resulting in delayed material storage; second, manual auditing is prone to misjudgment risk due to fatigue or negligence; third, the shielding mechanism of the existing system for supplier information is not perfect, and sensitive information may be exposed on the audit interface, which may cause data leakage or operation fraud.

[0004] Therefore, there is an urgent need for a data automatic checking method for external incoming material inspection data auditing to improve efficiency and avoid human risks. SUMMARY

[0005] Therefore, the present application provides a metallurgical external incoming material quality auditing method, which combines the pre-set quality inspection index qualified range and the dynamically calculated difference range of the quality inspection index to audit the raw materials, reduces manual participation, and improves auditing efficiency.

[0006] To this end, the present application provides the following technical solutions: A metallurgical external incoming material quality auditing method, comprising: Collecting all test results of target material quality inspection indexes in a preset time period as historical data; Determining a difference range based on the historical data; Combining the qualified range and the difference range of the target material to complete the auditing of the target material.

[0007] Further, the determining the difference value range based on the historical data comprises: calculating a standard deviation and an average value of the quality inspection index based on the historical data; determining the difference value range of the quality inspection index based on 2 times of the standard deviation.

[0008] Further, the determining the difference value range of the quality inspection index based on 2 times of the standard deviation comprises: the average value plus 2 times of the standard deviation as the upper limit of the difference value, and the average value minus 2 times of the standard deviation as the lower limit of the difference value.

[0009] Further, the completing the quality audit of the target material by combining the qualified range and the difference value range of the target material comprises: if the quality inspection index value of the target material is within the qualified range and within the difference value range, the quality is qualified; if the quality inspection index value of the target material is not within the qualified range or not within the difference value range, an early warning is issued and manual verification is performed.

[0010] Further, the material comprises: mineral powder.

[0011] Further, the quality inspection index comprises: total iron content in the mineral powder.

[0012] Advantages and positive effects of the present application: The present method detects the material index value by the preset qualified range, judges whether the material is qualified, calculates the standard difference value range based on the historical data, and judges the material quality inspection index value based on the difference value range, so that the quality of the material provided by the same supplier can be compared without leaking the sensitive information of the supplier, and the quality of the incoming material is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0014] Figure 1 The flow chart of the metallurgical incoming material quality audit method in embodiment 1 of the present application. DETAILED DESCRIPTION

[0015] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of the present invention.

[0016] It should be noted that the terms "first," "second," etc., in the specification, claims, and accompanying drawings of this invention are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of the invention described herein can be implemented in orders other than those illustrated or described herein. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0017] This invention provides a method for quality auditing of imported metallurgical materials, which involves collecting all inspection results of the target material's quality inspection indicators within a preset time period as historical data; determining the difference range based on the historical data; and completing the audit of the target material by combining the qualified range and the difference range of the target material.

[0018] Example 1 S1. Collect all results of the target material quality inspection indicators over a period of time as historical data.

[0019] S2. Calculate the average and standard deviation of the quality inspection indicators based on the data.

[0020] S3. Determine the range of differences based on the mean value with 2 standard deviations: the upper limit of the difference is the mean value plus 2 standard deviations, and the lower limit of the difference is the mean value minus 2 standard deviations.

[0021] S4. Preset the acceptable range of the target material's quality inspection indicators, and conduct quality inspection audits of the target material based on the acceptable range and the range of deviations of the target material's quality inspection indicators: If the quality inspection index values ​​of the target material are within the acceptable range and within the difference range, then the quality is qualified. If the quality inspection index value of the target material is not within the qualified range or not within the difference range, an early warning will be issued and manual verification will be performed.

[0022] Example 2 Based on the method of Example 1, when the target material is ore powder, the review process is as follows: The quality inspection index of ore powder is total iron content, and the preset qualified range is total iron content % ≥ 65.0 total iron content % ≥ 65.0.

[0023] S1, collect the test results of total iron content in the ore powder stored in the warehouse in the past 3 months as the historical data of total iron content of ore powder; the inspection laboratory system establishes a test data database according to the material number for each material variety and stores the historical data.

[0024] S2, calculate the average value and 2 times standard deviation of the historical data of total iron content of ore powder.

[0025] In this embodiment, the average value of the test results of the supplier in the past 3 months is 65.66% and the 2 times standard deviation is 0.557%.

[0026] S3, determine the difference range based on the average value with 2 times standard deviation: the upper limit of the difference is the average value plus 2 times standard deviation, and the lower limit of the difference is the average value minus 2 times standard deviation.

[0027] In this embodiment, the upper limit of the difference is 66.217%, the lower limit of the difference is 65.103%, and the difference range is 65.103%~66.217%.

[0028] S4, preset the qualified range of the quality inspection index of the target material, and perform quality inspection review of the target material based on the qualified range of the quality inspection index of the target material and the difference range: If the quality inspection index value of the target material is within the qualified range and within the difference range, it is qualified; If the quality inspection index value of the target material is not within the qualified range or not within the difference range, an early warning is issued and manual verification is performed.

[0029] In this embodiment, the total iron content of the two batches of ore powder to be reviewed is 62.36% and 66.54%.

[0030] 62.36% is not within the qualified range, so an early warning is issued and manual verification is performed.

[0031] 66.54% is not within the difference range, so an early warning is issued and manual verification is performed.

[0032] S5, update at a fixed time every day The time for updating the historical data to establish the quality early warning range is set to 0:00-3:00 every day, avoiding the time when the test data is input into the system, to ensure efficient operation of the system.

[0033] Compared with the manual auditing method, the auditing period of the incoming material inspection data is shortened from 13 hours to instant transmission of data between systems, the working efficiency of the incoming material inspection data auditing is improved, and the manual auditing risk is avoided.

[0034] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A metallurgical exogenous charge mass auditing method, characterized by, The method comprises the following steps: collecting all inspection results of the quality inspection index of the target material in a preset time period as historical data; determining a difference range based on the historical data; completing the review of the target material in combination with the qualified range and the difference range of the target material.

2. The method of claim 1, wherein, The step of determining the difference range based on the historical data comprises the following steps: calculating the standard deviation and the average value of the quality inspection index based on the historical data; determining the difference range of the quality inspection index based on 2 times the standard deviation.

3. The method of claim 2, wherein, The step of determining the difference range of the quality inspection index based on 2 times the standard deviation comprises the following steps: taking the average value plus 2 times the standard deviation as the upper limit of the difference range, and taking the average value minus 2 times the standard deviation as the lower limit of the difference range.

4. The method of claim 3, wherein, The step of completing the review of the target material in combination with the qualified range and the difference range comprises the following steps: if the quality inspection index value of the target material is within the qualified range and within the difference range, the quality is qualified; if the quality inspection index value of the target material is not within the qualified range or not within the difference range, an early warning is issued and manual verification is performed.

5. The method of claim 4, wherein, The material comprises: mineral powder.

6. The method of claim 4, wherein, The quality inspection index comprises: total iron content in the mineral powder.

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