Hauv lub ntiaj teb ntawm kev nqa khoom saum toj kawg nkaus, tsis muaj chaw rau qhov yuam kev. Lub nra hnyav uas raug dai tsis yog tsuas yog cov khoom siv xwb; nws yog qhov txaus ntshai. Qhov no yog vim li cas qhov zoo ntawm cov saw hlau nqa khoom - txawm tiasQib 80 (G80)los yog lub zog tensile siab duaQib 100 (G100)—yeej tsis muaj hnub yuav hais dhau lawm. Rau cov engineers thiab cov kws tshaj lij rigging, ib txoj saw yog ib qho khoom siv kev nyab xeeb, thiab nws cov txheej txheem tsim khoom yuav tsum tau ua raws li cov qauv nruj tshaj plaws.
Ntawm SCIC (www.scic-chain.com), peb nkag siab tias qhov kev ua tiav ntawm cov saw hlau nqa yog qhov sib sau ua ke ntawm nws cov khoom. Txij li cov tshuaj lom neeg ntawm cov hlau nyoos mus rau qhov txheej txheem kawg, txhua kauj ruam hauv kab ntau lawm txiav txim siab lub peev xwm ntawm cov saw hlau kom ua haujlwm tau zoo hauv qab kev thauj khoom.
Nov yog cov ntsiab lus tseem ceeb uas txhais tau tias qhov zoo ntawm cov saw hlau nqa khoom hauv ntiaj teb.
1. Lub Hauv Paus: Kev Xaiv Cov Khoom Siv Hlau
Txoj kev mus rau txoj saw hlau nqa khoom kom muaj kev nyab xeeb tsis yog pib hauv lub hoobkas, tab sis hauv lub tsev hlau. Cov saw hlau G80 thiab G100 xav tau cov hlau sib xyaw tshwj xeeb - feem ntau muaj cov ntsiab lus xws li chromium, molybdenum, thiab boron.
- G80 Saw:Xav tau cov hlau zoo, cov hlau tsis muaj hlau uas teb tau raws li kev kho cua sov, piv txwv li, 20Mn2 lossis 22MnCrNi
- G100 Saw:Xav tau kev ua hlau metallurgy ntau dua. Yuav kom ua tiav lub zog tensile siab dua (1000 N / mm²) yam tsis ua rau brittle, cov hlau yuav tsum huv dua (nrog tsawg dua cov khoom tsis yog hlau) thiab alloyed nrog kev ua kom raug, piv txwv li, SAE8620D
Siv cov hlau tsis zoo los txuag cov nqi yog ib daim ntawv qhia rau kev puas tsuaj loj heev.
2. Qhov Weld: Qhov Txuas Muaj Zog Tshaj Plaws
Ib txoj saw hlau tsuas muaj zog li qhov tsis muaj zog tshaj plaws xwb, thiab rau cov saw hlau sib txuas puag ncig, qhov ntawd yog qhov vuam. Cov saw hlau niaj hnub siv kev vuam lub pob tw.
- Kev Tswj Xyuas Txheej Txheem: Yuav tsum tswj kom zoo kom qhov vuam tam sim no, qhov siab nce, thiab qhov kub kom tsim tau qhov vuam uas tsis sib txawv ntawm cov khoom siv hlau.
- Kev Sib Xws: Thaj chaw vuam yuav tsum tsis muaj cov oxide thiab cov kab nrib pleb. Ntawm SCIC, peb xyuas kom meej tias qhov vuam flash raug tshem tawm huv si, tab sis qhov tseem ceeb tshaj plaws, tias cov qauv ntawm cov hlau yog txuas ntxiv mus thoob plaws qhov sib koom ua ke.
3. Lub plawv ntawm kev ua tau zoo: Kev kho cua sov
Kev kho cua sov yog qhov uas hloov cov hlau uas khoov mus ua ib qho kev ua tau zooQib 80 lossis 100 saw hlau.Qhov no feem ntau yog ib qho txheej txheem peb theem:
- Kev Ua Kom Ruaj: Cov saw hlau raug cua sov rau qhov kub tseem ceeb thiab tom qab ntawd tua (txias sai sai) los tsim cov qauv martensitic - qhov chaw ntawm nws lub zog siab.
- Kev Kho Kom Kub: Qhov no yog kauj ruam uas nyuaj tshaj plaws. Cov saw hlau raug rov ua kom sov dua rau qhov kub qis dua. Qhov no txo cov kev ntxhov siab sab hauv los ntawm kev kho kom kub thiab "kho kom kub" cov hlau, pauv qhov nyuaj me me rau qhov nce ntxiv ntawm kev tawv. Cov saw hlau uas kho kom kub zoo yuav ncab (ntev) ua ntej nws tawg, muab kev ceeb toom pom ua ntej ua tsis tiav.
4. Kev Txheeb Xyuas: Kev Ntsuas Lub Zog thiab Kev Tawg
Koj tsis tuaj yeem tshuaj xyuas qhov zoo ntawm cov saw hlau; koj yuav tsum ua pov thawj tias nws zoo. Txhua lub 'meter' ntawm cov saw hlau nqa khoom uas tsim tawm yuav tsum ua tau raws li cov qauv thoob ntiaj teb (xws li ISO lossis DIN).
- Kev Ntsuas Lub Zog Pov Thawj: Txhua txoj saw hlau raug rau qhov hnyav pov thawj (feem ntau 2.5 npaug ntawm qhov txwv ua haujlwm rau G80). Qhov no ncab cov saw hlau kom ywj pheej, xyuas kom meej tias cov khoom siv thiab cov vuam sib txuas zoo.
- Kev Ntsuas Lub Zog Tawg: Cov qauv tawg los ntawm txhua pawg ntau lawm raug rub mus rau kev rhuav tshem. Lub zog tawg yuav tsum tshaj qhov tsawg kawg nkaus uas tau teev tseg los ntawm tus qauv (piv txwv li, 4 npaug ntawm WLL). Qhov no tsis yog hais txog kev ntaus tus lej xwb; nws yog hais txog kev ua kom hom kev ua tsis tiav yog ductile (qhia "necking down" ntawm qhov txuas) es tsis yog brittle.
5. Kev Tiav Ntawm Qhov Chaw: Kev Tiv Thaiv thiab Kev Ua Tau Zoo
Kauj ruam kawg yog kev tiv thaiv. Ib puag ncig qhia txog qhov ua tiav:
- Dub Oxide / Roj: Qhov tiav txheem. Nws muab qib pib ntawm kev tiv thaiv xeb rau kev siv sab hauv tsev thiab tso cai rau cov saw hlau kom yooj yim tshuaj xyuas seb puas muaj kab nrib pleb.
- Kev Pleev Xim (piv txwv li, Qib Xim Coding): Feem ntau siv rau kev txheeb xyuas (piv txwv li,G80 feem ntau yog xim dub, G100 feem ntau yog xiav). Nws muab kev tiv thaiv xeb nruab nrab.
- Galvanizing: Muab kev tiv thaiv xeb zoo heev rau cov chaw hauv dej hiav txwv lossis tshuaj lom neeg. Txawm li cas los xij, qhov no yuav tsum tau ceev faj heev. Yog tias tsis ua kom raug (piv txwv li, acid pickling), galvanizing tuaj yeem ua rau hydrogen embrittlement, ua rau cov saw hlau muaj zog heev thiab tawg yooj yim. Cov txheej txheem tshwj xeeb tom qab ci yog qhov yuav tsum tau ua. Rau Hot Dip Galvanizing tiav, cov saw hlau qhov kev txwv ua haujlwm thiab lub zog tawg yuav tsum raug txo los ntawm 20-25%.
- E-Txheej Txheej (Electrophoretic Deposition): Ib qho kev xaiv nrov zuj zus rau G100 saw hlau. Nws muab cov txheej txheem sib xws, ruaj khov, thiab tiv taus xeb yam tsis muaj kev pheej hmoo ntawm hydrogen embrittlement cuam tshuam nrog kev kub-dip galvanizing.
Rau tus kws tshaj lij rigging, saw yog ib qho cuab yeej ntawm kev ntseeg siab. Ntawm SCIC, peb ntseeg tias kev ntseeg siab tau los ntawm kev ua tib zoo saib xyuas txhua yam ntawm kev tsim khoom: cov hlau, qhov vuam, kev kho cua sov, thiab kev sim. Thaum koj xaiv G80 lossis G100 saw los ntawm SCIC (www.scic-chain.com), koj tab tom xaiv cov khoom tsim los rau kev nyab xeeb, kev ntseeg siab, thiab kev ua tau zoo nyob rau hauv cov xwm txheej nyuaj tshaj plaws.
Lub sijhawm tshaj tawm: Lub Ob Hlis-25-2026
