12B Cov Txheej Txheem Tsim Khoom Siv Rau Cov Hlau Roller: Qhia Txog Kev Tsim Khoom Uas Muaj Tseeb Ntawm Cov Cheebtsam Sib Kis Hauv Kev Lag Luam Tseem Ceeb
Hauv kev lag luam thoob ntiaj teb kev xa khoom thiab kev tuav cov khoom siv, 12B cov saw hlau, nrog lawv lub zog dav, lub peev xwm thauj khoom ruaj khov, thiab kev teeb tsa yooj yim thiab kev saib xyuas, tau dhau los ua qhov tseem ceeb rau kev xa khoom rau cov tshuab tsuas, cov khoom siv ua liaj ua teb, thiab cov kab sib dhos. Kev ntseeg tau ntev ntawm 12B cov saw hlau nyob rau hauv kev thauj khoom siab, kev ua haujlwm siab yog nyob ntawm cov txheej txheem tsim khoom nruj thiab zoo. Txij li kev xaiv cov khoom siv raw mus rau kev xa khoom tiav, kev tswj hwm zoo ntawm txhua theem ntawm cov txheej txheem yog qhov tseem ceeb rau kev txiav txim siab lub neej ntawm cov saw hlau, kev ua haujlwm zoo ntawm kev xa khoom, thiab kev tiv thaiv kev pheej hmoo. Niaj hnub no, peb yuav nkag mus rau hauv cov txheej txheem tsim khoom tiav ntawm 12B cov saw hlau, piav qhia txog cov ntsiab lus kev siv tshuab tom qab "cov saw hlau zoo."
1. Cov Txheej Txheem Tseem Ceeb: Kev Teeb tsa Tus Qauv thiab Kev Xaiv Khoom Siv rau 12B Cov Saw Hlau
Ua ntej yuav tham txog cov txheej txheem, nws yog ib qho tseem ceeb uas yuav tsum xub piav qhia txog "cov txheej txheem ntsuas" rau 12B cov saw hlau. Raws li cov saw hlau sib kis uas ua raws li ANSI B29.1 (Tus qauv saw hlau Asmeskas) thiab ISO 606 (tus qauv saw hlau thoob ntiaj teb), nws cov qhov ntev tseem ceeb, xws li qhov siab (19.05mm), txoj kab uas hla ntawm cov menyuam (11.91mm), thiab qhov dav ntawm ntu sab hauv (12.57mm), tau raug teeb tsa tus qauv thiab kho. Lub hom phiaj tseem ceeb ntawm cov txheej txheem yog kom ua tiav qhov kev ua tau zoo tshaj plaws los ntawm cov ntaub ntawv thiab cov txheej txheem ua haujlwm thaum ua tau raws li cov qauv no.
1. Kev Xaiv Cov Khoom Siv Tseem Ceeb Uas Sib Xws
Cov khoom sib txawv ntawm 12B cov saw hlau xav tau cov ntaub ntawv sib txawv thiab cov txheej txheem ua ntej vim lawv cov xwm txheej thauj khoom sib txawv:
Cov koob thiab cov menyuam: Ua cov khoom tseem ceeb hauv cov saw hlau kis tau uas tiv taus kev cuam tshuam thiab kev sib txhuam, SUJ2 cov hlau muaj carbon chromium siab (sib npaug rau cov hlau GCr15 hauv tsev) raug xaiv. Cov khoom siv yuav tsum tau ua ntej "spheroidizing annealing" ua ntej - ua kom cov hlau sov rau 780-820 ° C rau 4-6 teev, tom qab ntawd maj mam txias nws kom qis dua 500 ° C. Cov txheej txheem no txo qhov nyuaj ntawm cov khoom siv (Brinell hardness ≤ 207 HB), txhim kho kev siv tshuab, thiab tso lub hauv paus rau cov qauv me me thaum lub sijhawm kho cua sov tom qab, tiv thaiv kev tawg thaum lub sijhawm quenching.
Cov phaj saw thiab cov bushings: Cov phaj saw yuav tsum tau tiv taus cov khoom hnyav tensile, yog li ST52-3 cov hlau tsis tshua muaj carbon (tensile zog ≥ 520 MPa) siv. Cov txheej txheem "quenching thiab tempering" (quenching ua raws li high-tempering kub) coj qhov nyuaj rau HB220-250, ua kom muaj zog tensile thiab qee qib ntawm kev tawv kom tiv thaiv kev tawg. Cov Bushings yog ua los ntawm 20CrMnTi carburized hlau, nrog rau cov txheej txheem carburizing tom qab ntawd kom ua rau qhov nyuaj ntawm qhov chaw kom tiv taus kev sib txhuam nrog cov pins.
II. Cov Txheej Txheem Tsim Khoom Tseem Ceeb: Kev Hloov Pauv Tseeb los ntawm "Cov Khoom Siv Raw" mus rau "Cov Txuas Saw"
Kev tsim cov saw hlau 12B muaj yim txoj hauv kev tseem ceeb, txhua txoj hauv kev xav tau kev tswj hwm nruj ntawm cov txheej txheem kom ntseeg tau tias muaj kev ua tau zoo thiab kev ua tau zoo:
1. Kev Kho Mob Ua Ntej Rau Cov Khoom Siv Raw: Kev Tshem Tawm Txoj Kev Rau Kev Ua Haujlwm
Tshem Tawm Xeb thiab Roj: Thaum nkag mus rau hauv lub chaw ua haujlwm, tag nrho cov hlau yuav tsum tau dhau los ntawm lub dab dej alkaline degreasing (50-60 ° C, tsau rau 15-20 feeb) kom tshem tawm cov roj ntawm qhov chaw. Tom qab ntawd nws yuav tsum tau pickled nrog hydrochloric acid (15% -20% concentration, tsau rau ntawm chav tsev kub rau 8-12 feeb) kom tshem tawm cov nplai. Thaum kawg, nws yuav tsum tau ntxuav nrog dej huv thiab ziab kom tiv thaiv cov khoom tsis huv los ntawm kev cuam tshuam rau qhov tseeb ntawm kev ua haujlwm tom ntej.
Kev Txiav Kom Tseeb: Nyob ntawm qhov loj ntawm cov khoom, CNC sawing lossis laser txiav yog siv rau kev txiav. Qhov ntev ntawm qhov txiav pin yuav tsum tswj tau hauv ± 0.1 hli, thaum txiav saw phaj yuav tsum tswj qhov sib txawv ntawm qhov sib piv ntawm ≤0.05% kom tiv thaiv kev hloov pauv thaum lub sijhawm stamping tom qab.
2. Kev Ua Haujlwm Kom Tseeb ntawm Cov Cheebtsam Tseem Ceeb: Kev Ua Haujlwm Kom Tseeb Qib Millimeter
Kev luam ntawv phaj saw hlau thiab kev xuas nrig: Kev luam ntawv phaj saw hlau thiab kev xuas nrig yog ua tiav ntawm CNC punch press siv "txuas ntxiv mus tas li." Cov qauv phaj saw hlau raug xuas nrig ua ntej, ua raws li cov qhov pin ntawm ob qho kawg. Qhov kev kam rau siab ntawm qhov chaw yuav tsum tau tswj hwm rau H7 (kev kam rau siab ntau yam 0-0.018mm), nrog qhov yuam kev ntawm qhov chaw nruab nrab ntawm ≤0.05mm kom ntseeg tau tias qhov tseeb tom qab ntawd haum nrog cov pins. Kev tshem tawm (siv lub log sib tsoo lossis kev sib tsoo vibratory) yog qhov yuav tsum tau ua tom qab luam ntawv kom tiv thaiv cov npoo ntse los ntawm kev ua rau cov neeg ua haujlwm raug mob lossis cuam tshuam nrog kev sib dhos. Roller Cold Forging: SUJ2 hlau yog tsim hauv ib kauj ruam siv ntau lub chaw nres tsheb txias forging tshuab. Cov hlau yog thawj zaug forged, tom qab ntawd extruded rau hauv lub roller zoo li, thiab thaum kawg punched (rau kev ntxig rau hauv lub tes tsho). Thaum lub sijhawm txias forging, qhov kub ntawm lub pwm (≤200 ° C) thiab siab (300-400 MPa) yuav tsum tau tswj hwm kom ntseeg tau tias qhov yuam kev ntawm lub roller yog ≤0.03mm kom tiv thaiv kev hnav eccentric thaum lub sijhawm ua haujlwm.
Kev Ua Kom Tiav Tus Pin: Tus pin raug zom ua ntej siv lub tshuab sib tsoo tsis muaj qhov chaw nruab nrab (nrog rau qhov ntev sab nraud ntawm ± 0.05 hli), tom qab ntawd zom kom zoo rau nws qhov ntev kawg (kev kam rau siab H8, 0-0.022 hli) siv lub tshuab sib tsoo cylindrical. Qhov roughness ntawm qhov chaw ntawm Ra ≤0.8μm raug tswj. Qhov chaw du no txo qhov kev sib txhuam nrog lub tes tsho, ua rau nws lub neej ua haujlwm ntev dua.
3. Kev Kho Mob Kub: Muab "Kev Ua Haujlwm Tough-Core" rau Cov Cheebtsam
Kev Kho Kom Zoo Nkauj Rau Cov Phaj Saw: Tom qab muab cov ntawv luam tawm, cov phaj saw raug muab tso rau hauv lub cub tawg tas mus li, tuav ntawm 850-880 ° C rau 30 feeb, tom qab ntawd roj-quenched. Tom qab ntawd lawv raug muab tso rau hauv lub cub tawg tempering ntawm 550-600 ° C rau 2 teev. Qhov nyuaj kawg ncav cuag HB220-250, thiab lub zog tensile nce mus txog ≥800 MPa, kom ntseeg tau tias lawv tuaj yeem tiv taus qhov ntsuas tensile ntawm 12B saw (≥18.8 kN). Pin thiab Roller Quenching + Low-Tempering: SUJ2 pins thiab rollers raug cua sov rau 830-850 ° C (tuav qhov kub rau 25 feeb) hauv lub cub tawg mesh-siv quenching, roj-quenched, thiab tom qab ntawd kub qis ntawm 160-180 ° C rau 2 teev, ua tiav qhov nyuaj ntawm HRC 58-62 thiab qhov nyuaj ntawm HRC 30-35. Qhov "sab nraud tawv, sab hauv tawv" no tiv taus kev hnav thiab tiv thaiv kev cuam tshuam, tiv thaiv kev tawg. Lub Tes Tsho Carburizing thiab Quenching: Lub tes tsho 20CrMnTi raug muab tso rau hauv lub cub tawg carburizing thiab cua sov ntawm 920-940 ° C rau 4-6 teev nrog methanol thiab propane (carburizing agents) kom ua tiav cov pa roj carbon ntawm 0.8% -1.2%. Lub tes tsho ces raug quenched (850 ° C roj-txias) thiab tempered qis-kub (180 ° C). Qhov tawv ntawm qhov tshwm sim yog HRC 58-62, thiab qhov tob ntawm txheej carburized yog 0.8-1.2 hli, ua kom lub neej sib txhuam ntawm lub tes tsho tawm tsam tus pin zoo.
4. Kev Sib Dhos Ua Ib Ke: Xyuas Kom Muaj Kev Sib Koom Tes Tag Nrho
Sab Hauv thiab Sab Nraud Sib Dhos: Qhov txuas sab hauv muaj ib lub tes tsho, lub menyuam, thiab lub phaj txuas sab hauv. Ua ntej, nias lub tes tsho rau hauv lub qhov pin ntawm lub phaj txuas sab hauv (kev cuam tshuam, lub zog nias-haum 5-8kN). Tom qab ntawd, swb lub menyuam hla lub tes tsho (kev sib txawv, kev sib txawv 0.02-0.05mm). Qhov txuas sab nraud muaj ib lub koob thiab lub phaj txuas sab nraud. Lub koob raug nias rau hauv lub qhov phaj txuas sab nraud (kev cuam tshuam). Tom qab nias-haum, xyuas seb puas muaj perpendicularity (deviation ≤ 0.5°) kom tiv thaiv kev khi thaum lub sijhawm ua haujlwm.
Kev Sib Dhos Tag Nrho Cov Saw thiab Kev Ncab Ua Ntej: Cov txuas sab hauv thiab sab nraud raug khi ua ke los ua ib txoj saw tiav. Qhov no ua raws li "kev kho ua ntej ncab" - lub zog tensile ntawm 80% ntawm qhov hnyav ntsuas (kwv yees li 15kN) raug siv rau ntawm lub tshuab kuaj tensile tshwj xeeb rau 30 feeb. Qhov no tshem tawm cov saw thawj zaug elongation thiab tso cai rau cov khoom sib dhos ua ke nruj dua. Qhov no tso cai rau kev tswj hwm elongation tom qab hauv 0.5% (piv rau qhov nruab nrab ntawm kev lag luam ntawm 1%-1.5%).
III. Cov Txheej Txheem Tswj Xyuas Zoo: Kev Tshuaj Xyuas Tag Nrho Cov Txheej Txheem kom Tshem Tawm Cov Khoom Tsis Zoo
12B cov saw hlau rau kev xa tawm mus rau txawv teb chaws raug kuaj ntau yam kom ntseeg tau tias ua raws li cov qauv thoob ntiaj teb. Cov kauj ruam tseem ceeb ntawm kev kuaj suav nrog:
1. Kev Tshuaj Xyuas Qhov Ntsuas Qhov Tseeb
Siv lub tshuab ntsuas peb-seem (CMM) los tshuaj xyuas qhov loj me tseem ceeb xws li qhov nruab nrab ntawm lub qhov ntawm lub phaj saw hlau, txoj kab uas hla sab nraud ntawm tus pin, thiab txoj kab uas hla ntawm lub roller. Muaj kev kuaj random ntawm 20 daim ib pawg, nrog rau 100% dhau tus nqi.
Siv lub ntsuas suab los tshuaj xyuas qhov suab ntawm cov saw hlau. Qhov sib txawv ntawm qhov suab ib 'meter' yuav tsum yog ≤0.3 hli kom ntseeg tau tias muaj kev sib txuas nrog lub sprocket.
2. Kev Ntsuas Khoom Siv Kho Tshuab
Kev Ntsuas Lub Zog Tensile: Cov saw hlau raug rau kev nruj ntawm lub tshuab ntsuas tensile kom txog thaum nws tawg. Lub nra hnyav yuav tsum yog ≥ 28.2kN (ntau tshaj qhov hnyav ntsuas ntawm 18.8kN) kom ntseeg tau tias muaj kev nyab xeeb thaum muaj kev thauj khoom ntau dhau.
Kev Ntsuas Lub Neej Qaug Zog: Cov saw hlau tau teeb tsa rau ntawm "lub tshuab ntsuas kev qaug zog ntawm cov saw hlau" thiab raug rau 50% ntawm qhov ntsuas hnyav (kwv yees li 9.4kN) ntawm qhov ceev ntawm 1500r / min. Lub neej qaug zog yuav tsum yog ≥ 500 teev (tus qauv kev lag luam yog 300 teev), ua piv txwv txog kev ntseeg tau nyob rau hauv lub sijhawm ntev ntawm cov xwm txheej siab.
3. Kev Tshuaj Xyuas Qhov Zoo Ntawm Qhov Chaw
Siv lub tshuab ntsuas qhov roughness ntawm qhov chaw los tshuaj xyuas cov qhov ntawm tus pin thiab cov menyuam; tus nqi Ra yuav tsum yog ≤0.8μm.
Tshawb xyuas qhov kev kho saum npoo (piv txwv li, galvanizing, blackening): lub thickness ntawm txheej galvanizing yuav tsum yog ≥8μm thiab yuav tsum tsis muaj xeb tom qab 48-teev kev sim tshuaj tsuag ntsev (tshuaj tsuag ntsev nruab nrab, 5% NaCl kua). Kev kho blackening yuav tsum sib xws thiab tsis muaj qhov chaw, thiab kev nplaum yuav tsum ua tau raws li tus qauv GB / T 10125.
IV. Tus Nqi Ua Tes Ua Taw: Vim li cas kev ua tes ua taw zoo thiaj li ua rau kev sib tw ua lag luam ntawm 12B cov saw hlau?
Cov txiaj ntsig ntawm 12B cov saw hlau muaj txiaj ntsig zoo rau kev siv tshuab:
Lub neej ntev dua: Siv cov khoom siv SUJ2 thiab kev kho cua sov kom raug, cov saw hlau muaj lub neej ua haujlwm nruab nrab ntawm 8,000-10,000 teev, ntev dua 40% dua li cov saw hlau ib txwm muaj (5,000-6,000 teev), txo cov nqi hloov pauv thiab lub sijhawm tsis ua haujlwm.
Kev sib kis ruaj khov dua: Qhov tseeb ntawm qib millimeter thiab kev ncab ua ntej ua kom cov saw hlau khiav tawm ntawm ≤0.1 hli thaum lub sijhawm ua haujlwm, tswj kev sib kis tau zoo tshaj 98%, ua rau nws tsim nyog rau cov ntawv thov ceev ceev xws li cov tshuab textile thiab cov kab sib dhos tsis siv neeg.
Siv tau ntau yam: Kev kho qhov chaw xaiv tau (galvanizing, blackening, thiab phosphating) thiab kev kho cua sov raws li qhov xav tau (xws li tempering qis-kub rau qhov chaw qis-kub) ua tau raws li ntau yam kev xav tau ua haujlwm. Piv txwv li, cov saw hlau galvanized tuaj yeem siv rau hauv cov chaw ua zaub mov kom tiv thaiv xeb, thaum cov saw hlau phosphated tuaj yeem siv rau hauv cov khoom siv mining rau plua plav thiab tiv taus hnav.
Xaus Lus: Kev Ua Tes Ua Taw yog "Qhov Zoo Sib Tw Zais Cia" ntawm 12B Cov Chains Rau Cov Menyuam
Hauv kev lag luam thoob ntiaj teb 12B cov saw hlau, "tus nqi qis" tsis yog qhov zoo dua lawm. Hloov chaw, "kev ua haujlwm raug" thiab "kev ruaj khov ntawm kev ua haujlwm" yog qhov tseem ceeb rau kev tau txais kev ntseeg siab ntawm cov neeg siv khoom txawv teb chaws. Txij li cov qauv nruj hauv kev xaiv cov khoom siv raw, mus rau kev tswj hwm theem millimeter hauv cov txheej txheem tsim khoom, mus rau kev tshuaj xyuas ua ntej xa khoom, txhua txoj kev ua haujlwm muaj kev cog lus rau kev ntseeg siab ntawm cov khoom.
Lub sijhawm tshaj tawm: Cuaj hlis-15-2025