Umgangatho oPhakamileyo kaloliwe oqhelekileyo weDizili / Isitofu seFuel NozzleDLLA148P062

Uhlalutyo lokuba kutheni umlomo wesitofu ubambekile kwizitofu. (Icandelo 3)

2.3.2 Ukuqina komphezulu womlomo ngu-720HV1～780HV1, ubukhulu bomgangatho we-carburized ngu-0.6mm ~ 0.8mm, kwaye i-austenite egciniweyo ayiyi kudlula i-15%. Ubunzima bomphezulu wenombolo yesitampu yentsimbi yokuqala ye-HHM nozzle yi-HV0.2588, ephantsi kakhulu kuneemfuno zoyilo, ubukhulu be-carburized layer yi-0.6mm, inqanaba le-martensite li-2, kwaye i-austenite egciniweyo inqanaba le-1; ukuqina komphezulu wenombolo yesitampu sokuqala se-HD nozzle iphantsi kwi-HV1615 Ngokweemfuno zoyilo lwe-HV1720, ubukhulu be-carburized layer yi-0.86mm, inqanaba le-martensite linqanaba lesi-4, kunye nenqanaba le-austenite eligcinwe linqanaba lesi-3. Ubunzima bomngxuma wangaphakathi wemilomo emibini abuzange bufezekise iimfuno zoyilo. Izinto eziphathekayo ze-valve yenaliti yi-W6Mo5Cr4V2, umgangatho wesizwe ufuna umxholo we-C ube ngu-0.8% ukuya kwi-0.9%, kwaye umxholo we-V ube ngu-1.75% ukuya kwi-2.20%. Inombolo yesitampu esilinganisiweyo sokuqala se-HD isiqulatho se-valve yenaliti ye-0.7%, umxholo we-V ngu-1.09%, kwaye umxholo we-C kunye no-V ungaphantsi kweemfuno zomgangatho wesizwe;

2.3.3 Umxholo we-C wenombolo yokuqala yesitampu ye-HHM yenaliti ye-0.72%, umxholo we-V ngu-1.19%, kunye nomxholo we-C kunye no-V ungaphantsi kweemfuno zomgangatho wesizwe. Ezinye izinto ze-alloy zevalve enaliti ezimbini zingaphakathi koluhlu olufunwa ngumgangatho wesizwe. Izinto eziphathekayo ze-nozzle yi-18Cr2Ni4WA, umxholo we-C wenombolo yesitampu sokuqala se-HD ngu-0.20%, kwaye umgangatho wesizwe ufuna i-0.13% ukuya kwi-0.19%, kunye nomxholo wezinto eziseleyo ze-alloy ze-nozzle ngaphakathi koluhlu. efunwa ngumgangatho wesizwe. Zonke izinto ezixutywayo zetampu yentsimbi yokuqala ye-HHM nozzle zingaphakathi koluhlu olufunwa ngumgangatho wesizwe.