Qhov cuam tshuam loj heev ntawm kev ncab tshuab rau lub zog thiab kev tawv ntawm cov saw hlau
Hauv kev lag luam xa khoom thiab kev thauj mus los,cov saw hlauKev ua tau zoo ncaj qha txiav txim siab qhov ruaj khov, kev nyab xeeb, thiab lub neej ntev ntawm cov khoom siv. Ua tus neeg yuav khoom lag luam wholesale thoob ntiaj teb, koj nkag siab txog qhov tseem ceeb ntawm cov saw hlau zoo rau kev ua haujlwm zoo ntawm koj cov neeg siv khoom tom qab. Cov saw hlau ruaj khov txo cov nqi kho thiab lub sijhawm tsis ua haujlwm, thaum kawg txhim kho kev sib tw ntawm cov neeg siv kawg. Ntawm ntau cov txheej txheem tsim khoom rau cov saw hlau, kev ncab tshuab, ua ib qho txheej txheem tseem ceeb ntawm kev txhawb nqa, muaj qhov cuam tshuam tseem ceeb rau lub zog thiab kev tawv ntawm cov saw hlau.
1. Kev Ncab Tshuab: Tus "Ua Kom Muaj Zog Tsis Pom" hauv Kev Tsim Khoom Siv Hlau Roller
Kev ncab tshuab yog ib qho txheej txheem tseem ceeb tom qab tsim khoom hauv kev tsim cov saw hlau. Nws siv lub zog tensile tswj tau, txuas ntxiv mus rau cov saw hlau, yuam nws kom tiv taus qhov kev thauj khoom uas tau teeb tsa hauv nws qhov ntau ntawm kev hloov pauv elastic kom txog thaum ncav cuag qhov ntev uas xav tau, tom qab ntawd tshem tawm. Cov txheej txheem yooj yim no tuaj yeem hloov pauv cov yam ntxwv ntawm cov saw hlau, los ntawm microstructure mus rau macroscopic kev ua tau zoo.
Tsis zoo li cov txheej txheem zoo li kev kho cua sov, kev ncab tshuab tsis hloov pauv cov tshuaj lom neeg ntawm cov khoom. Hloov chaw, nws ua kom zoo dua qhov kev ua tau zoo los ntawm kev hloov kho lub cev:
Nws tshem tawm cov kev ntxhov siab sab hauv uas tsim thaum lub sijhawm stamping thiab sib dhos (xws li kev ntxhov siab seem tom qab xuas cov phaj saw thiab kev ntxhov siab hauv zos thaum lub sijhawm nias-fitting ntawm rollers thiab bushings);
Nws faib cov kev ntxhov siab sib cuag thoob plaws cov khoom sib txuas (cov phaj saw, cov menyuam, cov bushings, thiab cov pins);
Nws ua kom cov qauv siv lead ua sab hauv ntawm cov khoom siv zoo nkauj, ua kom cov kev sib txuas ntawm cov molecular muaj zog.
Kev nkag siab txog qhov cuam tshuam ntawm cov txheej txheem no zoo ib yam li kev paub txog "tus yuam sij kub" los ntsuam xyuas kev ua haujlwm ntev ntawm cov saw hlau.
II. Kev Txhim Kho Kom Muaj Zog: Los Ntawm Kev Thauj Khoom Zoo Li Qub Mus Rau Kev Tiv Thaiv Kev Hnav Dynamic
Lub "zog" ntawm cov saw hlau yog ib qho cim qhia txog kev ua haujlwm uas suav nrog lub zog tensile, lub zog qaug zog, thiab kev tiv taus kev hnav. Kev ncab ntawm lub tshuab muaj kev txhim kho tseem ceeb, ntsuas tau hauv cov cim no.
1. Lub Zog Tensile: Ib qho Kev Sib Koom Tes Uas Tawg Dhau Qhov Kev Txwv Theoretical ntawm Cov Khoom Siv
Lub zog tensile ntawm ib txoj saw hlau nyob ntawm lub peev xwm ntawm nws qhov txuas tsis muaj zog tshaj plaws - feem ntau yog qhov tuab ntawm lub phaj saw hlau lossis txoj kab uas hla ntawm tus pin. Kev ncab tshuab txhim kho lub zog tensile tag nrho los ntawm cov txheej txheem hauv qab no:
Cov txheej txheem ncab ua rau muaj kev hloov pauv yas hauv cov phaj saw hlau, ua tau zoo "kev sib tsoo thib ob" ntawm cov khoom, ua rau nws lub zog ntau ntxiv.
Qhov haum ntawm tus pin-rau-tes tsho tau zoo tshaj plaws, txo cov kev ntxhov siab hauv zos uas tshwm sim los ntawm kev sib dhos thiab ua kom muaj kev hloov pauv ntawm cov khoom thauj sib npaug.
Qhov kev tawg ntawm cov saw hlau uas ncab tuaj yeem nce ntxiv los ntawm 8% -15% (nyob ntawm cov khoom siv), ntau dua li cov saw hlau tsis kho.
Qhov no txhais tau hais tias nyob rau hauv cov tshuab hnyav (xws li cov khoom siv khawb av thiab cov tshuab nqa khoom), cov saw hlau uas ncab tuaj yeem tiv taus cov khoom hnyav dua, txo qhov kev pheej hmoo ntawm kev tawg.
2. Lub zog qaug zog: Tus yuam sij rau kev ncua lub neej ua haujlwm
Hauv feem ntau ntawm cov ntawv thov kev lag luam, kev ua tsis tiav ntawm cov saw hlau tsis yog vim muaj kev tawg ntawm lub zog, tab sis yog kev puas tsuaj los ntawm kev qaug zog thaum lub sijhawm ntev hloov pauv (xws li kev tawg ntawm cov npoo ntawm lub phaj saw hlau thiab kev hnav thiab tsim kua muag ntawm qhov chaw ntawm tus pin). Kev ncab ntawm lub tshuab ua kom lub saw hlau tsis kam qaug zog ntau dua los ntawm lub tshuab "preload":
Nws tshem tawm cov qhov tsis zoo me me (xws li cov kab nrib pleb me me thiab cov npuas) hauv cov khoom xws li cov phaj saw thiab cov koob, uas yog cov chaw pib ntawm kev ua haujlwm tsis zoo.
Thaum lub sijhawm ncab, kev ntxhov siab compressive seem yog tsim nyob rau hauv cov khoom siv, them rov qab qee qhov kev ntxhov siab tensile thaum lub sijhawm ua haujlwm thiab ncua qhov pib tawg.
Cov ntaub ntawv sim qhia tau hais tias cov saw hlau uas raug ncab raws li tus qauv tuaj yeem ntev lawv lub neej qaug zog los ntawm 30% -50%, ua rau lawv tsim nyog rau cov khoom siv ceev ceev (xws li cov kab ntau lawm thiab cov tshuab ua liaj ua teb).
Rau cov neeg yuav khoom, qhov no txhais tau tias ntev lub voj voog kev saib xyuas cov khoom siv rau cov neeg siv khoom tom qab thiab txo cov nqi yuav khoom tag nrho.
3. Kev Tiv Thaiv Kev Hnav: Txo kev hnav thiab txhim kho kev sib kis tau zoo.
Thaum lub sijhawm ua haujlwm, cov saw hlau yuav muaj kev sib txhuam thiab kev sib txhuam ntawm cov menyuam thiab cov bushings, thiab ntawm cov pins thiab bushings. Kev ncab ntawm lub tshuab ua rau muaj kev tiv thaiv kev hnav los ntawm cov hauv qab no:
Nws ua kom cov qhov me me ntawm cov nplaim sib cuag tiaj tus, ua rau thaj chaw sib cuag ntau dua thiab txo qhov siab ib cheeb tsam;
Nws txhawb nqa kev faib tawm ntawm cov roj nplua nyeem hauv qhov sib txawv, tsim cov roj zaj duab xis ruaj khov dua thiab txo kev sib cuag ncaj qha ntawm hlau-rau-hlau;
Ib txoj saw hlau uas ncab tau tuaj yeem txo qhov hnav los ntawm 20% -30% nyob rau hauv cov xwm txheej ua haujlwm sib npaug, tswj hwm qhov sib piv kis tau zoo txawm tias tom qab siv ntev.
III. Kev Tswj Xyuas Qhov Ruaj Khov: Kev Kos Duab ntawm Kev Sib Npaug "Kev Ruaj Khov Ntau Dhau thiab Kev Tawg Yooj Yim"
Lub zog yog qhov tseem ceeb, tab sis cov saw hlau uas tsis muaj zog yuav yooj yim tawg thaum muaj kev cuam tshuam - tej zaum yuav ua rau muaj xwm txheej loj hauv cov kab ntau lawm thiab cov tshuab siv hauv kev tsim kho hnyav. Lub tswv yim ntawm kev ncab tshuab yog nws lub peev xwm los tswj lossis txhim kho cov saw hlau tawv thaum ua kom muaj zog los ntawm kev tswj kev ntxhov siab.
1. Lub Ntsiab Lus ntawm Kev Ruaj Khov: Lub Peev Xwm Nqus Tau Zog Yam Tsis Tawg
Lub zog ntawm ib txoj saw hlau yog pom tseeb hauv nws lub peev xwm los hloov pauv thiab nqus lub zog thaum muaj kev cuam tshuam. Cov saw hlau uas tsis tau ncab tuaj yeem tsim cov "chaw tawv" hauv zos vim muaj kev faib tawm ntawm kev ntxhov siab sab hauv tsis sib xws. Qhov no tuaj yeem ua rau muaj kev ntxhov siab ntau hauv ib qho chaw thaum raug kev ntxhov siab, thaum kawg ua rau tawg yooj yim.
Kev ncab tshuab suav nrog maj mam siv lub zog tensile kom tso tawm qhov kev ntxhov siab sab hauv cov khoom siv tib lub sijhawm txhawb nqa kev txav mus los hauv cov qauv siv lead ua. Qhov "kev cob qhia ua ntej yas" no tso cai rau cov saw hlau kom nqus tau lub zog los ntawm kev hloov pauv yas ntau dua thaum muaj kev cuam tshuam tom qab, es tsis txhob tawg tam sim ntawd.
2. Cov Ntsiab Lus Tseem Ceeb: Qhov Sib Piv Kub ntawm Lub Zog Tensile thiab Lub Sijhawm Nyob
Kev tswj hwm qhov tawv nyob ntawm cov kev ntsuas ntawm cov txheej txheem ncab:
Lub zog tensile qis dhau yuav tsis tshem tawm tag nrho kev ntxhov siab sab hauv;
Lub zog tensile ntau dhau lossis lub sijhawm nyob ntev tuaj yeem ua rau "overhardening" ntawm cov khoom, uas ua rau txo qhov toughness;
Cov chaw tsim khoom zoo feem ntau kho qhov nkhaus ncab (piv txwv li, kev thauj khoom kauj ruam lossis kev tshem tawm maj mam) raws li tus qauv saw (piv txwv li, 08B thiab 10A hauv ISO 606) thiab qhov xwm txheej ntawm daim ntawv thov kom ua tiav qhov sib npaug zoo meej ntawm lub zog thiab kev tawv. Piv txwv li, cov saw hlau hnyav siv hauv cov khoom siv crane chaw nres nkoj xav tau kev tawv dua kom tiv taus kev cuam tshuam tam sim ntawd, thiab lawv cov kev ntsuas tensile feem ntau nyiam "lub zog qis, lub sijhawm ntev." Cov saw hlau siv rau kev sib kis precision, ntawm qhov tod tes, muab qhov tseem ceeb rau lub zog thaum tswj kev tawv, ua rau muaj kev teeb tsa ntau dua.
IV. Phau Ntawv Qhia Txog Kev Txiav Txim Siab Yuav Khoom: Yuav Ua Li Cas Txheeb Xyuas Cov Saw Hlau Zoo Los Ntawm Cov Txheej Txheem Tensile
Kev siv cov qauv txheej txheem rau cov txheej txheem tensile rau hauv koj lub txheej txheem ntsuam xyuas kev yuav khoom tuaj yeem txo qhov kev pheej hmoo zoo. Nov yog ob peb yam tseem ceeb rau kev txheeb xyuas:
Kev Txheem Txheej Txheem: Cov chaw tsim khoom zoo yuav tsum muab cov txheej txheem tensile meej (xws li lub zog tensile, lub sijhawm tuav, thiab qhov ntau ntawm kev tswj elongation), es tsis txhob hais tias "kev kho tensile."
Daim Ntawv Qhia Txog Kev Xeem: Cov ntaub ntawv sib piv ntawm cov khoom siv kho tshuab ua ntej thiab tom qab kev kho mob tensile (xws li lub zog tensile thiab cov txiaj ntsig ntawm kev xeem qaug zog) yog qhov yuav tsum tau ua, nrog rau daim ntawv pov thawj los ntawm lub koom haum xeem thib peb (xws li kev txheeb xyuas cov txheej txheem raws li ISO 9001 kev tswj hwm zoo).
Kev Siv Tau Zoo: Nug seb tus neeg muag khoom puas yuav kho qhov txheej txheem tensile raws li daim ntawv thov ntawm cov saw hlau (piv txwv li, qhov chaw kub siab, huab cua noo, kev ua haujlwm ceev). Piv txwv li, rau cov saw hlau tsis xeb siv hauv cov khoom siv ua zaub mov, cov txheej txheem tensile yuav tsum tsis txhob ua rau puas tsuaj rau qhov chaw tiv thaiv xeb. Kev ruaj khov ntawm pawg: Txoj kev ncab tshuab xav tau qhov tseeb ntawm cov khoom siv siab heev (piv txwv li, qhov yuam kev tswj lub zog tensile yuav tsum yog ≤ ± 2%). Kev ruaj khov ntawm cov txheej txheem ntawm tus neeg muag khoom tuaj yeem txiav txim siab los ntawm kev kuaj qhov sib txawv ntawm kev ntev ntawm tib pawg ntawm cov saw hlau.
Lub sijhawm tshaj tawm: Lub Yim Hli-27-2025