Deg roughness yog ib qho tseem ceeb kev ntsuas qhov ntsuas uas qhia txog microgeometric yuam kev ntawm ib feem ntawm qhov chaw thiab yog qhov tseem ceeb hauv kev ntsuam xyuas qhov zoo. Kev xaiv ntawm qhov chaw roughness yog txuas ncaj qha rau cov khoom zoo, kev pabcuam lub neej, thiab cov nqi tsim khoom.
Muaj peb txoj hauv kev los xaiv qhov roughness ntawm cov khoom siv tshuab: txoj kev suav, txoj kev sim, thiab txoj kev sib piv. Txoj kev analogy feem ntau yog siv rau hauv kev tsim kho tshuab vim nws qhov yooj yim, ceev, thiab ua haujlwm tau zoo. Cov ntaub ntawv pov thawj txaus yuav tsum tau siv rau kev siv cov qauv kev sib piv, thiab cov ntaub ntawv siv tshuab tsim qauv muab cov ntaub ntawv nthuav dav thiab cov ntaub ntawv. Qhov feem ntau siv siv yog qhov nto roughness uas sib haum rau cov chav kawm kam rau ua.
Feem ntau, cov khoom siv kho tshuab nrog qhov me me ntawm qhov yuav tsum tau ua kom muaj qhov me me ntawm qhov roughness qhov tseem ceeb, tab sis tsis muaj kev sib raug zoo ntawm lawv. Piv txwv li, qee qhov khoom siv, xws li cov tes tuav, cov cuab yeej, cov khoom siv tu cev, thiab cov khoom noj khoom haus, yuav tsum muaj cov npoo du heev nrog qhov siab ntawm qhov roughness qhov tseem ceeb, thaum lawv qhov kev cia siab ntawm qhov ntev yog tsawg. Feem ntau, muaj qee qhov kev sib txuas lus ntawm qib kam rau ua thiab qhov roughness tus nqi ntawm qhov chaw nrog qhov yuav tsum tau ua kom ntev ntev.
Ntau cov khoom siv tshuab tsim cov phau ntawv thiab kev tsim cov monographs qhia txog kev suav cov qauv rau saum npoo roughness thiab qhov ntev ntev ntawm kev sib raug zoo ntawm cov khoom siv tshuab. Txawm li cas los xij, qhov tseem ceeb hauv cov npe tau muab yog feem ntau sib txawv, ua rau muaj kev tsis sib haum xeeb rau cov neeg tsis paub txog qhov xwm txheej thiab ua rau qhov nyuaj ntawm kev xaiv qhov roughness ntawm cov khoom siv tshuab.
Hauv cov ntsiab lus siv tau, ntau hom tshuab muaj qhov sib txawv ntawm qhov roughness ntawm lawv qhov chaw, txawm tias lawv muaj tib qhov ntev ntev. Qhov no yog vim lub stability ntawm lub haum. Hauv kev tsim thiab tsim cov txheej txheem ntawm cov khoom siv kho tshuab, cov kev xav tau rau kev ruaj ntseg mating thiab interchangeability ntawm cov khoom sib txawv raws li hom tshuab. Cov khoom siv kho tshuab uas twb muaj lawm tsim phau ntawv qhia txog peb yam tseem ceeb hauv qab no:
Precision Machinery:Hom no yuav tsum muaj kev ruaj ntseg siab ntawm qhov haum thiab kev txiav txim siab tias qhov hnav txwv ntawm qhov chaw tsis pub tshaj 10% ntawm qhov ntev ntawm tus nqi, txawm tias thaum siv los yog tom qab ntau lub rooj sib txoos. Nws yog tsuas yog siv nyob rau hauv qhov chaw ntawm precision instruments, gauges, precision ntsuas cov cuab yeej, thiab cov kev sib txhuam nto ntawm qhov tseem ceeb xws li lub puab nto ntawm lub tog raj kheej, lub ntsiab phau ntawv journal ntawm precision tshuab cuab yeej, thiab lub ntsiab phau ntawv journal ntawm lub coordinator tho txawv tshuab. .
Ordinary Precision Machinery:Cov pawg no muaj cov kev xav tau siab dua rau kev ruaj ntseg ntawm qhov haum thiab xav tau tias qhov hnav tsis pub dhau 25% ntawm qhov ntsuas qhov ntev. Nws tseem yuav tsum tau muaj qhov sib txuas kom zoo thiab feem ntau yog siv rau hauv cov cuab yeej siv tshuab, cov cuab yeej, thiab cov kabmob dov kom haum rau saum npoo, taper pin qhov, thiab qhov chaw sib cuag nrog cov txheeb ze txav ceev, xws li mating nto ntawm zawv zawg bearings thiab lub iav hniav ua hauj lwm nto.
General Machinery:Hom no yuav tsum muaj qhov txwv tsis pub hnav ntawm qhov chaw tsis pub tshaj 50% ntawm qhov ntsuas qhov ntev thiab tsis cuam tshuam nrog kev txav mus los ntawm kev sib cuag ntawm qhov chaw.cnc milled qhov chaw. Nws yog siv rau cov khoom siv xws li lub npov npog, lub tes tsho, lub ntsej muag ua haujlwm ntawm qhov chaw, cov yuam sij, qhov tseem ceeb uas yuav tsum tau muaj kev sib raug zoo, thiab cov chaw sib cuag nrog cov txheeb ze tsis tshua muaj zog, xws li bracket qhov, bushings, thiab cov chaw ua hauj lwm nrog rub lub qhov ncej. thiab reducers.
Peb ua raws li kev txheeb xyuas ntawm ntau lub rooj qhov tseem ceeb hauv phau ntawv qhia kev tsim kho tshuab, hloov pauv cov txheej txheem qub hauv tebchaws rau qhov roughness (GB1031-68) rau hauv tus qauv tshiab hauv tebchaws (GB1031-83) hauv xyoo 1983 nrog rau kev siv thoob ntiaj teb tus qauv ISO. Peb txais yuav qhov kev ntsuam xyuas qhov xav tau, uas yog qhov sib txawv nruab nrab ntawm tus nqi ntawm contour arithmetic (Ra = (1/l)∫l0|y|dx). Thawj koob ntawm qhov tseem ceeb uas nyiam los ntawm Ra yog siv los muab qhov kev sib raug zoo ntawm qhov roughness Ra thiab qhov ntev ntev IT.
Chav Kawm 1: Ra≥1.6 Ra≤0.008 × IT
Ra≤0.8Ra≤0.010 × IB
Chav Kawm 2: Ra≥1.6 Ra≤0.021 × IT
Ra≤0.8Ra≤0.018 × IB
Chav Kawm 3: Ra≤0.042 × IT
Table 1, Table 2, thiab Table 3 teev saum toj no peb hom kev sib raug zoo.
Thaum tsim cov khoom siv kho tshuab, nws yog ib qho tseem ceeb uas yuav tsum xaiv qhov roughness tus nqi raws li qhov ntev ntev. Ntau hom tshuab yuav tsum tau xaiv cov rooj sib txawv.
Nws tsim nyog sau cia tias lub rooj siv thawj tus nqi rau Ra, thaum lub teb chaws qub qauv siv tus nqi thib ob rau tus nqi txwv ntawm Ra. Thaum hloov dua siab tshiab, tej zaum yuav muaj teeb meem nrog cov nqi siab thiab qis dua. Peb siv tus nqi siab tshaj hauv cov lus vim nws pab txhim kho cov khoom zoo, thiab tus nqi qis yog siv rau tus nqi ntawm tus kheej.
Lub rooj sib haum rau qib kam rau ua thiab nto roughness ntawm lub teb chaws tus qauv qub muaj cov ntsiab lus nyuaj thiab daim ntawv. Rau tib qib kam rau ua, qhov loj me, thiab qhov loj me, qhov roughness qhov tseem ceeb ntawm lub qhov thiab cov ncej sib txawv, raws li qhov tseem ceeb rau ntau hom kev haum. Qhov no yog vim muaj kev sib raug zoo ntawm qhov kev zam ntawm qhov qub kam rau ua thiab haum tus qauv (GB159-59) thiab cov yam ntxwv uas tau hais los saum no. Tam sim no tshiab lub teb chaws tus qauv kam rau ua thiab haum (GB1800-79) muaj tib tus qauv kam rau ua tus nqi rau txhua qhov loj me hauv tib qib kev kam rau siab thiab qhov loj me, ua kom yooj yim rau cov lus sib thooj ntawm qib kam rau siab thiab nto roughness thiab ua rau nws ntau scientific thiab tsim nyog.
Hauv kev tsim ua haujlwm, nws yog ib qho tseem ceeb rau kev xaiv ntawm qhov chaw roughness ntawm qhov tseeb ntawm qhov kev ntsuam xyuas zaum kawg thiab ua kom pom tseeb ntawm qhov ua haujlwm ntawm qhov chaw thiabcnc manufacturing txheej txheemkev lag luam ntawm qhov chaw rau kev xaiv tsim nyog. Cov qib kam rau ua thiab qhov chaw roughness qhov tseem ceeb tau muab rau hauv lub rooj tuaj yeem siv los ua ib qho kev siv rau kev tsim.
Yog tias koj xav paub ntau ntxiv lossis nug, thov hu rau dawbinfo@anebon.com.
Anebon muaj peev xwm muab cov khoom lag luam zoo, cov nqi muag khoom sib tw, thiab cov neeg siv khoom zoo tshaj plaws. Anebon lub hom phiaj yog "Koj tuaj ntawm no nrog kev nyuaj, thiab peb muab rau koj nrog luag nyav kom tshem tawm" raukev cai hlau CNC machiningthiabKev pabcuam tuag-casting. Tam sim no, Anebon tau txiav txim siab txhua qhov tshwj xeeb kom ntseeg tau tias txhua yam khoom lossis kev pabcuam tau txaus siab los ntawm peb cov neeg yuav khoom.
Post lub sij hawm: Aug-20-2024