Heat Resistant Precision Castings Introduction
Material: carbon steel (ZG230-450)
Heat treatment method: NBK
Surface treatments: shot blasting and polishing
reduction of area ：45%
Tolerance grade: CT6
Technical Key Points
Ø In order to get a better slagging effect, set larger risers and increase pouring temperature appropriately. In normal situation, WCB carbon steel at 1570℃ -1580℃, stainless steel at 1580℃ -1590℃.
Ø pouring speed: in the case of ensuring smooth gas discharge from the cavity, higher pouring speed can be used; pouring operation requirements: after casting, as soon as the castings solidified, remove the pressure iron and box, to reduce the casting shrinkage resistance and avoid cracks and flaws.
1.What kinds of material you can produce?
A: The dominant material we cast is stainless steel, duplex stainless steel, carbon steel, ductile cast iron, aluminum, copper, bronze, brass and alloy metal etc. etc.
2.What is your main casting process?
A: Our casting technologies include sand casing, investment casting, bonded sand casting etc.
3.Which inspection reports you can provide?
A: We Provide dimensional inspection report, chemical composition inspection report, physical property inspection report, heat treatment report, NDT flaw detection report, according to customer demand.
4.What equipment does your company use when you examine the chemical composition?
A: We use Spark Spectrometer, testing result are printed automatically.
5.What equipment do you have for NDT inspection?
A: We have ultrasonic flaw detector, av miniature magnetic yoke detector, magnetic detector and penetration detector.