I.Intro:
Based on horizontal continuous casting for cast ironprofile(dense bar),we've developed new casting tech 'Vertical upward continuouscasting' in 2006, by using this tech we manufactured new kind
of cast ironprofiles ---Cast Iron Hollow Bar , which have been tested by chinese authoritysector in mechanical industry and proved that the quality is much better thantraditional sand-
casting or
centrifugal casting profiles . Our advantagesincluding high density,zero deficiency,close final shape(tube),superb wearresistance,high purity,excellent machinability and fatigue strength etc.
1.
Ductile Cast Iron Pipe/bar(ISO:400-18/500-7/600-3/700-2/800-1)
---spheroidization rate 90%,ball diameter 7~8,ball number 400~600/mm2
---compare
sand casting, at same strength, elongation increase50~100%
2.ADI(Austempered Ductile Iron)
---σb≥1200Μpa,δ≥2%,ak≥35J/mm2
3.Gray Cast IronPipe/bar(ISO:150/200/250/300/350)
---Matrix: ferrite+pearlite
---σb=250-380 Mpa, HB=150-240, E=1.1-1.7*105Mpa
4. Alloy Gray Cast IronPipe/bar
--CrNiMo Cast Iron--CrMoCu Cast Iron--High Nb Cast Iron--VNb CastIron
--High B Cast Iron--High P Cast Iron--High Ni Cast Iron...