Babban Ingancin Common Rail Diesel / Fuel Injector NozzleDLL148P062

Binciken dalilin da yasa bututun allura ya makale a cikin alluran. (Kashi na 3)

2.3.2 The surface taurin bututun ƙarfe ne 720HV1 ~ 780HV1, da kauri daga cikin carburized Layer ne 0.6mm ~ 0.8mm, da kuma riƙe austenite ba zai wuce 15%. Ƙaƙƙarfan farfajiyar lambar hatimin karfe na farko HHM bututun ƙarfe shine HV0.2588, wanda ya fi ƙanƙanta da buƙatun ƙira, kauri na carburized Layer shine 0.6mm, matakin martensite shine 2, kuma austenite da aka riƙe shine matakin 1; Taurin fuskar farko na lambar hatimi HD bututun ƙarfe shima low a HV1615 Dangane da buƙatun ƙira na HV1720, kauri na carburized Layer shine 0.86mm, matakin martensite shine matakin 4, kuma matakin austenite da aka riƙe shine matakin 3. Ƙunƙarar rami na ciki na nozzles biyu bai cika ka'idodin ƙira ba. Abu na bawul ɗin allura shine W6Mo5Cr4V2, ma'aunin ƙasa yana buƙatar abun ciki na C ya zama 0.8% zuwa 0.9%, abun ciki na V ya zama 1.75% zuwa 2.20%. Lambar hatimi na farko da aka auna HD abun ciki na bawul ɗin allura shine 0.7%, abun ciki na V shine 1.09%, kuma abun ciki na C da V sun kasance ƙasa da ƙa'idodin ƙa'idodin ƙasa;

2.3.3 Abubuwan C na lambar hatimi na farko HHM bawul ɗin allura shine 0.72%, abun ciki na V shine 1.19%, kuma abun ciki na C da V sun kasance ƙasa da ƙa'idodin ƙa'idodin ƙasa. Sauran abubuwan gami na bawul ɗin allura biyu suna cikin kewayon da ake buƙata ta ƙa'idar ƙasa. Kayan bututun ƙarfe shine 18Cr2Ni4WA, abun ciki na C na lambar hatimi na farko HD bututun ƙarfe shine 0.20%, kuma ma'aunin ƙasa yana buƙatar 0.13% zuwa 0.19%, kuma abun ciki na sauran abubuwan gami na bututun ƙarfe yana cikin kewayon. da ake buƙata ta ma'aunin ƙasa. Duk abubuwan da aka haɗa na lambar tambarin ƙarfe na farko HHM bututun ƙarfe suna cikin kewayon da ma'aunin ƙasa ke buƙata.