A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
High-self-opening-rate stuffing sand suitable for high-manganese steel continuous casting production and using method
The invention belongs to the technical field of high-manganese steel continuous casting production, and particularly relates to high-self-opening-rate stuffing sand suitable for high-manganese steel continuous casting production and a using method. The stuffing sand comprises, by mass, smaller than 25% of SiO2, smaller than 15% of Fe2O3, larger than 32% of Cr2O3, larger than 10% and smaller than 18% of Al2O3, larger than 8% of ZrO2, larger than or equal to 0.3% and smaller than or equal to 1.0% of carbon black and smaller than or equal to 0.3% of H2O; and according to the granularity of the stuffing sand, the proportion of 0.25 mm-1. 2mm is larger than 95%, and the proportion of the stuffing sand with the granularity smaller than 0.25 mm is within 2%, and the proportion of the particle size of 1.2-1.5 mm is within 3%. According to the stuffing sand, the probability of the drainage phenomenon in the continuous casting production process of the high manganese steel is greatly reduced, and the cleanliness and stability of the steel are improved while efficient continuous casting production of the stuffing sand is achieved. In addition, the using method is improved, so that the occurrence probability of molten steel permeation and the use cost of the special stuffing sand are further reduced.
本发明属于高锰钢连铸生产技术领域，具体涉及一种适用于高锰钢连铸生产高自开率的引流砂及使用方法，本发明引流砂的质量组分中SiO2＜25％，Fe2O3＜15％，Cr2O3＞32％，10％＜Al2O3＜18％，ZrO2＞8％，0.3≤炭黑≤1.0％，H2O≤0.3％，引流砂粒度为：0.25mm‑1.2mm占比大于95％，小于0.25mm粒度的占比在2％以内，1.2‑1.5mm的粒度占比在3％以内。本发明引流砂大大降低了高锰钢连铸生产过程中引流现象的发生几率，实现其连铸高效生产的同时，也有利于提高钢质的洁净度及稳定性。此外，使用方法上的改进，进一步降低了钢液渗透的发生几率及专用引流砂的使用成本。
High-self-opening-rate stuffing sand suitable for high-manganese steel continuous casting production and using method
The invention belongs to the technical field of high-manganese steel continuous casting production, and particularly relates to high-self-opening-rate stuffing sand suitable for high-manganese steel continuous casting production and a using method. The stuffing sand comprises, by mass, smaller than 25% of SiO2, smaller than 15% of Fe2O3, larger than 32% of Cr2O3, larger than 10% and smaller than 18% of Al2O3, larger than 8% of ZrO2, larger than or equal to 0.3% and smaller than or equal to 1.0% of carbon black and smaller than or equal to 0.3% of H2O; and according to the granularity of the stuffing sand, the proportion of 0.25 mm-1. 2mm is larger than 95%, and the proportion of the stuffing sand with the granularity smaller than 0.25 mm is within 2%, and the proportion of the particle size of 1.2-1.5 mm is within 3%. According to the stuffing sand, the probability of the drainage phenomenon in the continuous casting production process of the high manganese steel is greatly reduced, and the cleanliness and stability of the steel are improved while efficient continuous casting production of the stuffing sand is achieved. In addition, the using method is improved, so that the occurrence probability of molten steel permeation and the use cost of the special stuffing sand are further reduced.
本发明属于高锰钢连铸生产技术领域，具体涉及一种适用于高锰钢连铸生产高自开率的引流砂及使用方法，本发明引流砂的质量组分中SiO2＜25％，Fe2O3＜15％，Cr2O3＞32％，10％＜Al2O3＜18％，ZrO2＞8％，0.3≤炭黑≤1.0％，H2O≤0.3％，引流砂粒度为：0.25mm‑1.2mm占比大于95％，小于0.25mm粒度的占比在2％以内，1.2‑1.5mm的粒度占比在3％以内。本发明引流砂大大降低了高锰钢连铸生产过程中引流现象的发生几率，实现其连铸高效生产的同时，也有利于提高钢质的洁净度及稳定性。此外，使用方法上的改进，进一步降低了钢液渗透的发生几率及专用引流砂的使用成本。
High-self-opening-rate stuffing sand suitable for high-manganese steel continuous casting production and using method
适用于高锰钢连铸生产高自开率的引流砂及使用方法
GAO YUBO (author) / GUI ZHONGLIN (author) / WANG XIANGHONG (author) / SHEN YAN (author)
2022-01-28
Patent
Electronic Resource
Chinese
High-self-opening-rate refined stuffing sand and preparation method thereof
| European Patent Office | 2024
Special stuffing sand for high-manganese high-aluminum steel and using method
| European Patent Office | 2020
| European Patent Office | 2024
Stuffing sand for clean steel production and preparation method thereof
| European Patent Office | 2021