Fun nigbagbogbo waye nigbati o nṣiṣẹ cavitation fifa

Awọn ẹya ẹrọ olupese fifa fifa Slurry: yiyan fifa yẹ ki o san ifojusi si kini? Resistance si ipata crevice nipasẹ awọn talaka to dara ibere jẹ bi wọnyi : 12% Cr steels <17% Cr irin Wahala ipata Wahala ibaje ntokasi si a etiile ipata ati ipata labẹ wahala ṣẹlẹ nipasẹ ayika ibaraenisepo . Awọn irin Austenitic CrNi jẹ itara diẹ sii si ipata wahala ni alabọde Cl. Pẹlu akoonu Cl, iwọn otutu ati aapọn diẹ sii ni itara si ipata wahala. Gbogbogbo Awọn atẹle 70 ~ 80 ℃ laisi wahala ipata slurry fifa ẹrọ. Awọn ọna lati ṣe idiwọ ipata wahala ni akoonu Ni giga (Ni> 25% ~ 30%) Cr ˉ Ni austenitic steel ẹnu Irin alagbara, irin slurry pump olupese.

Ibajẹ ati wọ Ntọka si omi iyara to ga lori ipata gbigbẹ oju irin kan. Ko dabi ibajẹ ogbara ito abrasive ati wọ ti o ṣẹlẹ nipasẹ alabọde ni ninu. Awọn ohun elo oriṣiriṣi ni ipata oriṣiriṣi ati wọ sooro. Abrasion resistance si ibajẹ nipasẹ iyatọ laarin iyipada ti o dara: ferritic austenitic - ferritic steel <austenitic steels.

Cavitation ipata Cavitation waye nigbati awọn fifa ni a npe ni cavitation ogbara ṣẹlẹ nipasẹ ipata. Dena ibajẹ cavitation ti ọna ti o wulo julọ ati ti o rọrun jẹ cavitation. Fun nigbagbogbo waye nigbati o ba n ṣiṣẹ cavitation fifa, lati le yago fun ibajẹ cavitation, awọn ohun elo ti o ni idiwọ le ṣee lo,slurry fifa olupesegoolu, idẹ phosphor, irin alagbara, irin 12% chromium. Ni otitọ, ibajẹ ibajẹ nigbagbogbo jẹ abajade ti ipa apapọ ti ọpọlọpọ awọn iru ipata, si ifosiwewe yiyan isọdọkan. Keji, ohun elo irin ti fifa ati awọn ọna yiyan 1 Awọn ohun elo .`

Ọpọlọpọ awọn ohun elo fifa soke. Awọn ohun elo irin ti o wọpọ jẹ irin simẹnti, irin simẹnti, 12% chromium steels, austenitic alagbara, irin 316L alagbara aluminiomu ati bẹbẹ lọ. Ni afikun ohun elo irin simẹnti silikoni giga wa fun media corrosive, № Re ⒍ st, Monel, B, Hastelloy C, 904, CD4MCu, titanium, alloy titanium.

Apapọ kemikali ti o wọpọ ti ohun elo alloy jẹ fifa ti o wọpọ pẹlu awọn ohun elo ti kii ṣe awọn ohun elo iranlọwọ: Teflon, roba nitrile, roba chloroprene, roba fluorine, roba sintetiki, ni afikun FFKM , graphite, gilaasi gilasi ti o kun PTFE ati bii.