Tshiab Injector Nozzle Dlla142p1595 0433171974 rau Roj Injector 0445110273 0986435165 rau Cov Khoom Siv Hluav Taws Xob

① Dismantling. Tshem tawm cov clogged injector nozzle los ntawm cov khoom siv roj ntawm lub cav diesel, thiab disassemble lub koob valve thiab rab koob valve lub cev. Vim tias cov tshuaj txhaj tshuaj muag los ntawm lub tuam txhab tau txhaws hauv cov khoom siv, 20 cov tshuaj txhaj tshuaj tiv thaiv tau raug xaiv xaiv rau kev tshem tawm.
② Sampling. Siv txhuam los sau cov hlau impurities ntawm qhov tshem tawm 20 injector nozzles thiab 20 koob valve lub cev.
③ Huv. Muab cov hlau impurity blockage sau rau ntawm lub injector nozzle thiab rab koob valve lub cev rau hauv lub khob huv si, ntxiv "acetone tov", raus cov hlau impurity blockage, thiab ces ntxuav nws nrog ib tug "ultrasonic cleaner" rau 15 feeb kom tshem tawm cov hlau impurities. . Tom qab tshem tawm cov impurity clog, tso rau ntawm daim ntawv lim kom qhuav.
④ Mosaic. Qhib lub "metallographic mosaic tshuab" pwm, muab lub tshuab ntxuav thiab qhuav hlau impurity ntsaws rau hauv pwm, npog nws nrog "metallographic mosaic khoom", ces kaw cov pwm thiab nias kom nruj, thiab tom qab ntawd qhib lub "metallographic mosaic tshuab". Nruab lub hwj chim ntawm lub tshuab, teem lub cua sov (140 ± 10) ℃, tua lub hwj chim tom qab ncav cuag qhov kub thiab txias rau 20 feeb, ces txias nws lawm rau 20 feeb, qhib lub pwm, thiab tshem tawm. tus qauv inlaid nrog hlau impurities.
⑤ Metallographic qauv npaj. Ntawm "metallographic qauv polishing tshuab", "wool" lossis "velvet" yog siv los ua cov ntaub polishing los polish cov qauv polished los ntawm "metallographic sandpaper". Ntxiv "metallographic polishing tus neeg saib xyuas" kom txog thaum qhov sib tsoo nto thaiv los ntawm cov hlau impurities ncav cuag ib daim iav du yam tsis muaj khawb.