Hais txog hydraulic breaker, raws li peb txhua tus paub, qhov cuam tshuam piston yog qhov tseem ceeb hauv cov npe ntawm cov khoom tseem ceeb tshaj plaws.Raws li qhov tsis ua hauj lwm ntawm lub piston, nws yog feem ntau, thiab feem ntau ua rau tsis ua hauj lwm loj, thiab cov hom kev ua tsis tiav tau tshwm sim nyob rau qhov kawg. Yog li ntawd, HMB tau sau tseg ntau yam ua rau piston tsis ua haujlwm.
1. khawb ntawm qhov chaw ua haujlwm, Piston strain crack
Yog vim li cas:
● low deg hardness
Siv lub hardness tester los ntsuas qhov hardness ntawm cov tub ntxhais (35 ≥ 45 yog qhov siv tau hardness ncua sij hawm tus nqi) ③Yog tias nws qis dua 35 degrees lossis tsuas yog ntau tshaj 20 degrees, cov piston loj, tshwj xeeb tshaj yog hydraulic breakers nrog lub zog loj, yog tshwj xeeb tshaj yog nyob rau saum npoo ntawm cov kab nrib pleb ④ Tom qab cov kab nrib pleb tshwm, qhov kam rau ntawm ib sab yuav nthuav dav hauv kaum tawm ntawm cov xov hlau, yog li rhuav tshem qhov sib txawv ntawm lub piston thiab lub tog raj kheej, ua rau mob hnyav.
● Cov impurities sib xyaw hauv cov roj hydraulic
● Qhov sib txawv nruab nrab ntawm lub laum pas nrig qhia lub tes tsho (sab sauv thiab qis) yog qhov loj heev, thiab lub tes tsho qhia tsis ua haujlwm.
Thaum lub laum pas nrig ua haujlwm, lub axis yog inclined.Thaum lub piston hits lub laum pas nrig, nws tau txais ib qho inclined cov tshuaj tiv thaiv quab yuam, uas tuaj yeem decompose lub axial quab yuam thiab lub zog radial, thiab lub zog radial tuaj yeem thawb lub piston mus rau ib sab, qhov sib txawv ntawm qhov qub ploj mus, cov yeeb yaj kiab roj raug rhuav tshem, qhuav. Kev sib txhuam yog tsim ntawm lub tog raj kheej thiab lub piston nto, thiab piston nto yog khawb li qhov tshwm sim.
2.piston tawg
Qhov laj thawj:
① Khoom teeb meem
Lub carburized low-alloy steel piston yog qhov ua rau sab hauv ntawm qhov cuam tshuam kawg lub ntsej muag kev nyuaj siab thiab tawg tawg.
Qhov sib txawv ntawm qhov sib txawv ntawm qhov sib txawv ntawm lub piston tawm tsam thiab lub laum pas nrig qhov sib tw hardness yuav tsum tsim nyog.
②Kev kho cua sov teeb meem
Thaum lub sij hawm forging los yog kev kho cua sov, cov khoom siv piston tsim cov kab nrib pleb, uas nthuav cov kab nrib pleb kom txog thaum lawv tawg nyob rau hauv qhov kev txiav txim ntawm alternating kev ntxhov siab.
3.Lub piston muaj qhov sib sib zog nqus, thiab lub tog raj kheej lub cev muaj qhov taw tes-rau-point symmetrical longitudinal strain;
Yog vim li cas:
① Nkag mus rau impurities, ua rau lub piston poob qhov sib npaug pem hauv ntej thiab nram qab, nrog lub tswv yim ntawm tilting lub taub hau, ua rau muaj kev ntxhov siab
② Cavitation, cavitation feem ntau tshwm sim hauv lub tog raj kheej, tsis yog ntawm lub piston.Cavitation yuav ua rau lub qhov tob tob, thiab cov khoom siv ntau dhau hauv nws yuav decomposed nyob rau hauv qhov cuam tshuam sai ntawm cov roj hydraulic, thiab tag nrho lub tog raj kheej yuav raug strained.
③ Cov kab xeb, raws li pom hauv daim duab tsis yog xeb pits.Cov kab xeb feem ntau yog tshwm sim los ntawm cov khoom siv piston (piv txwv li, qee cov tuam txhab siv 42CRMO lossis tsuas yog siv 40CR thiab lwm yam khoom siv vim kev lag luam siab) lossis thaum khaws cia, lawv tsis xyuam xim thawb lub piston rau hauv lub tog raj kheej.Nyob rau hnub los nag, Corrosion tshwm sim rau lub sijhawm ntev, thiab cov xeb daj hloov mus ua xeb dub thiab thaum kawg ua lub qhov.Feem ntau, qhov tshwm sim no tshwm sim rau cov me me thiab micro breakers uas pib xau roj ua ntej lub sijhawm tu.
Yog tias koj muaj dab tsi, thov koj xav tiv tauj peb!Cia li daws qhov teeb meem ua ke, tuaj ntawm !!
Kuv whatapp: +8613255531097
Post lub sij hawm: Mar-23-2023