Research on Online Traceability Methods for the Causes of Longitudinal Surface Crack in Continuous Casting Slab
Spremljeno u:
| Izdano u: | Materials vol. 18, no. 15 (2025), p. 3695-3712 |
|---|---|
| Glavni autor: | |
| Daljnji autori: | , , , |
| Izdano: |
MDPI AG
|
| Teme: | |
| Online pristup: | Citation/Abstract Full Text + Graphics Full Text - PDF |
| Oznake: |
Bez oznaka, Budi prvi tko označuje ovaj zapis!
|
MARC
| LEADER | 00000nab a2200000uu 4500 | ||
|---|---|---|---|
| 001 | 3239073268 | ||
| 003 | UK-CbPIL | ||
| 022 | |a 1996-1944 | ||
| 024 | 7 | |a 10.3390/ma18153695 |2 doi | |
| 035 | |a 3239073268 | ||
| 045 | 2 | |b d20250101 |b d20251231 | |
| 084 | |a 231532 |2 nlm | ||
| 100 | 1 | |a Cong Junqiang | |
| 245 | 1 | |a Research on Online Traceability Methods for the Causes of Longitudinal Surface Crack in Continuous Casting Slab | |
| 260 | |b MDPI AG |c 2025 | ||
| 513 | |a Journal Article | ||
| 520 | 3 | |a In the casting and rolling production process, surface longitudinal cracks are a typical casting defect. Tracing the causes of longitudinal cracks online and controlling the key parameters leading to their formation in a timely manner can enhance the stability of casting and rolling production. To this end, the influencing factors of longitudinal cracks were analyzed, a data integration storage platform was constructed, and a tracing model was established using empirical rule analysis, statistical analysis, and intelligent analysis methods. During the initial production phase of a casting machine, longitudinal cracks occurred frequently. The tracing results using the LightGBM-SHAP method showed that the relative influence of the narrow left wide inner heat flow ratio of the mold was significant, followed by the heat flow difference on the wide symmetrical face of the mold and the superheat of the molten steel, with weights of 0.135, 0.066, and 0.048, respectively. Based on the tracing results, we implemented online emergency measures. By controlling the cooling intensity of the mold, we effectively reduced the recurrence rate of longitudinal cracks. Root cause analysis revealed that the total hardness of the mold-cooling water exceeded the standard, reaching 24 mg/L, which caused scaling on the mold copper plates and uneven cooling, leading to the frequent occurrence of longitudinal cracks. After strictly controlling the water quality, the issue of longitudinal cracks was brought under control. The online application of the tracing method for the causes of longitudinal cracks has effectively improved efficiency in resolving longitudinal crack problems. | |
| 653 | |a Mechanical properties | ||
| 653 | |a Molds | ||
| 653 | |a Casting defects | ||
| 653 | |a Root cause analysis | ||
| 653 | |a Data processing | ||
| 653 | |a Heat transmission | ||
| 653 | |a Continuous casting | ||
| 653 | |a Heat | ||
| 653 | |a Data integration | ||
| 653 | |a Slab casting | ||
| 653 | |a Water quality | ||
| 653 | |a Cracks | ||
| 653 | |a Statistical analysis | ||
| 653 | |a Liquid metals | ||
| 653 | |a Casting machines | ||
| 653 | |a Cooling | ||
| 653 | |a Data integrity | ||
| 653 | |a Metal plates | ||
| 653 | |a Viscosity | ||
| 653 | |a Artificial intelligence | ||
| 653 | |a Temperature | ||
| 653 | |a Process controls | ||
| 653 | |a Missing data | ||
| 653 | |a Data collection | ||
| 653 | |a Heat transfer | ||
| 653 | |a Methods | ||
| 653 | |a Tracing | ||
| 653 | |a Surface cracks | ||
| 653 | |a Water hardness | ||
| 700 | 1 | |a Lv Qiancheng | |
| 700 | 1 | |a Fan Zihao | |
| 700 | 1 | |a Ling Haitao | |
| 700 | 1 | |a He, Fei | |
| 773 | 0 | |t Materials |g vol. 18, no. 15 (2025), p. 3695-3712 | |
| 786 | 0 | |d ProQuest |t Materials Science Database | |
| 856 | 4 | 1 | |3 Citation/Abstract |u https://www.proquest.com/docview/3239073268/abstract/embedded/6A8EOT78XXH2IG52?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text + Graphics |u https://www.proquest.com/docview/3239073268/fulltextwithgraphics/embedded/6A8EOT78XXH2IG52?source=fedsrch |
| 856 | 4 | 0 | |3 Full Text - PDF |u https://www.proquest.com/docview/3239073268/fulltextPDF/embedded/6A8EOT78XXH2IG52?source=fedsrch |