ASTM A888 Ponyani Chitoliro Chachitsulo Ndi Kuyenerera

Mapaipi a dothi a Hubless cast iron ndi zopangira zopangidwa ndiukadaulo wa centrifugal zimagwiritsidwa ntchito makamaka mu drainpipe kudzera paulumikizano wosinthika.Zogulitsazo zapeza miyezo ya ASTM A888, CISPI301 ndipo ili ndi zabwino izi:

 ◆ Lathyathyathya ndi mowongoka, ngakhale chitoliro khoma makulidwe, mkulu mphamvu ndi kachulukidwe, mkulu kusalala pamwamba ndi kunja kwa khoma, palibe chilema mu foundry,

◆ Kuyika kosavuta, kukonza kosavuta,

◆ Moyo wautali, wothandiza ku chilengedwe, osawotcha moto komanso wopanda phokoso.

Mkati ndi kunja: kupaka utoto wa bituminous. 

Kukula: 1.5", 2", 3", 4, 5, 6, 8, 10, 12, 15 

Gray cast iron chemical chigawo:

P＜0.38 S＜0.15 Cr＜0.50 Ti＜0.10 Al＜0.50 Pb＜0.015 C+(Si+P)/3 CE＞4.10

Grey iron mechanical Properties: ＞145Mpa