1results about How to "Reduce manganese content" patented technology

This invention discloses a low-manganese stainless steel material and its preparation method, belonging to the field of stainless steel materials. The method includes melting raw materials in a melting furnace to obtain stainless steel liquid and maintaining the temperature; sampling and analyzing the existing manganese content of the stainless steel liquid; calculating the required manganese-reducing agent content and adding it to the stainless steel liquid; thoroughly stirring to ensure the manganese-reducing agent is uniformly dispersed in the stainless steel liquid and fully reacts with the manganese in the stainless steel liquid to generate manganese-containing inclusions; repeatedly removing manganese-containing inclusions from the stainless steel liquid to pre-purify it; and then temperature-controlled cooling and casting the pre-purified stainless steel liquid to obtain the low-manganese stainless steel material. This invention can achieve efficient and controllable reduction of manganese content during the preparation of stainless steel materials, and has advantages such as simple process, short flow, low cost, and high efficiency. The prepared low-manganese stainless steel material has high quality and excellent comprehensive performance. It is particularly suitable for preparing low-manganese stainless steel materials from high-manganese stainless steel scrap.