Invention Grant
- Patent Title: Highly corrosion and wear resistant chilled casting
- Patent Title (中): 高度耐腐蚀和耐磨的冷铸
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Application No.: US737491Application Date: 1996-11-18
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Publication No.: US6165288APublication Date: 2000-12-26
- Inventor: Anja Dwars , Heinz Koeper , Wolfgang Prechtl , Joerg Schroepfer , Hermann Tischner
- Applicant: Anja Dwars , Heinz Koeper , Wolfgang Prechtl , Joerg Schroepfer , Hermann Tischner
- Applicant Address: DEX Frankenthal
- Assignee: KSB Aktienegsellschaft
- Current Assignee: KSB Aktienegsellschaft
- Current Assignee Address: DEX Frankenthal
- Priority: DEX4417261 19940517; DEX19512044 19950331
- Main IPC: C22C37/00
- IPC: C22C37/00 ; C22C37/08 ; C22C38/44
Abstract:
A chilled casting is characterized by high corrosion resistance in aggressive media and by a wear resistance that approaches that of commercially available types of chilled casting. The disclosed chilled casting contains 36 to 46% by weight Cr, 5 to 12% weight Ni, 2 to 6% by weight Mo, up to 3% by weight Cu, up to 0.2% by weight N, up to 1.5% by weight Si, up to 1.5% by weight Mn and 1.4 to 1.9% by weight C, the remainder being Fe and impurities due to the production process. The chilled casting further contains 20 to 40% by volume austenite, 20 to 40% by volume ferrite and 20 to 40% by volume carbides having a lattice structure.
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