A multi-line sample delivery and inspection data management and re-inspection closed-loop visualization method

Abstract

The application discloses a multi-line sample sending and test data management and retest closed-loop visualization method, and aims at process media such as acid liquid, passivation liquid and zinc liquid to realize quality closed-loop of one-time test, unqualified forced retest and secondary sample sending and inputting. The system automatically matches test indexes according to a unit, supports multi-parameter trend curve drawing, and records operation traces throughout the whole process. The method effectively solves problems of no retest, scattered data and invisible trend in traditional test, and significantly improves the standardization and traceability of metallurgical production line process medium control. The application has been used in a state-owned steel plant for many years.

Description

Technical Field

[0001] This invention relates to the field of process media testing and management technology in metallurgical cold rolling production lines, specifically to a digital management method for sample testing data of pickling acid, hot-dip galvanizing passivation solution, zinc liquid, etc., which enables one-time testing, mandatory retesting for non-conforming samples, secondary sampling, data collection, and visualization of trend curves. Background Technology

[0002] In the cold rolling process, the concentration of acid solution, the composition of passivation solution, and the composition of zinc solution directly affect product quality. Traditional management methods have the following problems: The lack of a mandatory retesting mechanism for abnormal test results can easily lead to misjudgments or quality risks. The data from the first and second tests are unrelated, making it impossible to compare and trace the data. The testing indicators for different production lines and different media are scattered, and there is no unified management entry point; The test data is only recorded in a table, making it impossible to intuitively view long-term trends; The detection of process anomalies is delayed, and there is a lack of visual early warning methods; There are no operational traces, and the data modification and verification process is untraceable. Summary of the Invention

[0003] This invention provides a closed-loop visualization method for managing and retesting sample testing data from multiple production lines. It achieves a closed-loop quality process throughout the entire process through "first-time testing → retesting triggered by non-compliance → second-time sample entry → data comparison → trend plotting".

[0004] 3.1 Single Test and Determination of Non-compliance • After the production line sends samples, enter the test data once: acid concentration, chromium point, aluminum / antimony / iron / lead / copper components, etc. The system determines whether a product is qualified based on the standards. • Non-conforming items will be subject to mandatory re-inspection; direct case closure is not permitted.

[0005] 3.2 Re-inspection mechanism and secondary sample entry • If the first test fails, the second sample submission process can be initiated by clicking the retest entry button; • Resample, perform a second test, and enter the second result into the system; The system automatically links primary and secondary data of the same volume / tank medium to form a retest comparison record.

[0006] 3.3 Automatic matching of testing indicators according to production line Pickling unit: regenerated acid concentration, acid tank 1-6 concentration; • Hot-dip galvanizing unit: chromium point of passivation solution, aluminum, antimony, iron, lead and copper content of primary / secondary zinc bath; • After selecting a generator unit, the corresponding indicators are automatically loaded to avoid incorrect selection and recording.

[0007] 3.4 Time Filtering and Trend Curve Plotting • Supports querying historical test data by date range; • Automatically generates line trend charts with markers and numerical labels; It can simultaneously plot multiple parameter curves, allowing for a direct comparison of process fluctuations; • The chart title is automatically generated: "Handan Steel ×× Line Process Parameter Curve", and the display is standardized.

[0008] 3.5 Data storage and operation tracking • Data is stored in separate tables: acid sample concentration table, passivation solution composition table, and zinc solution composition table; • Record the operator, IP address, and time for each step of data entry, verification, modification, and drawing. • The original data must not be arbitrarily altered, and must be auditable and traceable.

Claims

1. A method for managing sample submission and testing, characterized in that, It includes a complete quality closed loop, including initial testing, mandatory retesting for non-conforming samples, and secondary sample entry. A case cannot be closed directly if a test fails the first time; the retesting process must be initiated.

2. The method according to claim 1, characterized in that, The system automatically matches corresponding test indicators according to different unit types for pickling and hot-dip galvanizing, realizing unified management of multiple production lines and multiple media.

3. The method according to claim 1, characterized in that, It supports filtering test data by time range and automatically generates trend curves, which can simultaneously display the changing trends of multiple process parameters.

4. The method according to claim 1, characterized in that, The data from the first and second tests are automatically linked and compared to form a retest record, which facilitates quality traceability and deviation analysis.

5. The method according to claim 1, characterized in that, All data entry, verification, query, and drawing operations are logged, recording the operator, equipment address, and time to ensure data security and traceability.