S&T

CISDI’s RH integrated dip tube wins award for excellence

CISDI has won its eighth top patents award for excellence, more than any other Chinese metallurgical engineering company.

Integrated dip tube technology for the RH vacuum degassing refining process, patent number 201310074271.7, won the company its latest accolade.

Though the RH process is a representative procedure when mass-producing high-quality steel, many small and medium-sized steel plants find it difficult to apply. Improving a small-tonnage ladle’s RH efficiency has become a technical bottleneck for surmounting.

CISDI’s innovation, the integrated dip tube, solves RH efficiency restrictions. The central distance between the rising dip tube and the down-coming dip tube is reduced, thus forming an integrated dip tube. This increases the cross section of liquid steel flow and the liquid steel loop flow. As a result, the RH efficiency can be enhanced.

Minmetals’ Medium Plate Mill Plant in Yingkou has applied this patented technology to its 120t-ladle and seen remarkable results. Greater efficiency has been achieved in a shorter treatment cycle time, resulting in significant financial savings.