In order to meet the requirements of higher gear steel for auto industry,Beiman Special Steel has researched metallurgical characteristic of Cr-Mo steel in a systematic way and developed this series steel successfully,all technical indexes have come up to the same kind of products of Japanese standards and our company has achieved a good econormic performance
By understanding and mastering of this new metallurgical characteristic, the smelting effects of overheat, refining, metamorphose, inoculation and alloying have been further improved as well as the smelting environment.
The characteristics of the thin slab casting and development of the mold flux for the thin slab casting purpose are reviewed, and the physical properties and metallurgical characters of the mold flux for the thin slab casting eluciated and effects of chemical compositions of the flux on the properties analyed, and problems in use put forward.
The 10MnVTiN Steel introduced in this article has the metallurgical characteristics required by recrystal controlled rolling (RCR) process, such as higher grain coarsing temperature, lower grain coarsening speed, low austenite recrystal temperature and strong precipitation hardening ability.
The results had proved that,the BCu50ZnMnNiSi filler metal compared with common CuZn alloy filler metal,it had advantage of brazing metallurgy characteristics,interface metallurgy unity was compact,Although the BCu50ZnMnNiSi filler metal cantained many alloy elements,brazing joint had good tenacity and plasticity.