1. Zaj dab neeg ntawm kev sib txuas txuas txuas rau kev tsuas
Nrog rau qhov kev thov ntawm thee zog hauv ntiaj teb kev lag luam, thee mining machinery tau tsim sai heev. Raws li cov cuab yeej tseem ceeb ntawm kev siv tshuab thev naus laus zis hauv thee mine, cov khoom sib kis ntawm scraper conveyor kuj tau tsim sai heev. Nyob rau hauv ib lub siab, txoj kev loj hlob ntawm scraper conveyor nyob ntawm txoj kev loj hlob ntawmmining high-strength round txuas saw. Mining high-strength round link saw yog qhov tseem ceeb ntawm saw scraper conveyor hauv thee mine. Nws zoo thiab kev ua tau zoo yuavncaj qha cuam tshuam rau kev ua haujlwm ntawm cov khoom siv thiab cov khoom siv hluav taws xob ntawm cov thee mine.
Txoj kev loj hlob ntawm mining high-strength round link saw feem ntau suav nrog cov hauv qab no: kev tsim cov hlau rau mining round link saw, kev tsim cov saw kub kho tshuab, optimization ntawm round steel txuas saw loj thiab cov duab, sib txawv saw tsim thiab cov txoj kev loj hlob ntawm chain making technology. Vim cov kev txhim kho no, cov khoom siv kho tshuab thiab kev ntseeg tau ntawmmining round link chaintau txais kev txhim kho zoo heev. Cov kev qhia tshwj xeeb thiab cov khoom siv kho tshuab ntawm cov saw hlau tsim los ntawm qee qhov kev tsim khoom lag luam qib siab hauv ntiaj teb tau dhau deb dhau ntawm German DIN 22252 tus qauv dav siv hauv ntiaj teb.
Cov qib qis qis thaum ntxov rau mining round txuas saw txawv teb chaws feem ntau yog carbon manganese steel, nrog cov ntsiab lus carbon tsawg, cov ntsiab lus tsis tshua muaj alloy, tsis muaj hardenability, thiab saw txoj kab uas hla < ø 19mm. Hauv xyoo 1970, manganese nickel chromium molybdenum series high-qib saw hlau tau tsim. Cov hlau uas muaj xws li 23MnNiMoCr52, 23MnNiMoCr64, thiab lwm yam. cov hlau no muaj qhov zoo hardenability, weldability thiab lub zog thiab toughness, thiab yog haum rau zus tau tej cov loj C-qib saw. 23MnNiMoCr54 steel yog tsim nyob rau hauv lub lig 1980s. Raws li 23MnNiMoCr64 steel, cov ntsiab lus ntawm silicon thiab manganese raug txo thiab cov ntsiab lus ntawm chromium thiab molybdenum tau nce. Nws cov tawv tawv zoo dua li ntawm 23MnNiMoCr64 steel. Nyob rau hauv xyoo tas los no, vim muaj kev txhim kho tas mus li ntawm cov kev ua tau zoo ntawm cov kab txuas txuas steel thiab qhov txuas ntxiv txuas ntxiv ntawm cov saw hlau tshwj xeeb vim kev siv tshuab thee mining hauv thee mines, qee lub tuam txhab saw tau tsim qee cov qib steel tshiab tshwj xeeb, thiab qee cov khoom ntawm cov no. Cov qib steel tshiab yog siab dua 23MnNiMoCr54 steel. Piv txwv li, "HO" steel tsim los ntawm German JDT tuam txhab tuaj yeem ua kom cov saw hlau muaj zog los ntawm 15% piv nrog 23MnNiMoCr54 steel.
2.Txoj saw hlau kev pab cuam thiab tsis ua hauj lwm tsom xam
2.1 mining chain service conditions
Cov kev pabcuam ntawm cov hlua txuas txuas yog: (1) lub zog nruj; (2) qaug zog los ntawm pulsating load; (3) Kev sib txhuam thiab hnav tshwm sim ntawm cov hlua txuas, cov hlua txuas thiab cov hlua txuas, thiab cov hlua txuas thiab cov phaj nruab nrab thiab cov zawj sab; (4) Corrosion yog tshwm sim los ntawm kev ua ntawm pulverized thee, pob zeb hmoov thiab cov huab cua ntub.
2.2 mining chain links tsis ua hauj lwm tsom xam
Cov ntaub ntawv tawg ntawm cov saw hlau txuas tuaj yeem muab faib ua roughly faib ua: (1) cov khoom thauj ntawm cov saw hlau ntau tshaj nws cov khoom zoo li qub, ua rau tawg ua ntej. Qhov tawg no feem ntau tshwm sim nyob rau hauv qhov tsis xws luag ntawm cov saw txuas lub xub pwg lossis ncaj cheeb tsam, xws li tawg los ntawm lub pob tw vuam kub cuam tshuam rau cheeb tsam thiab ib tus neeg cov khoom tawg; (2) Tom qab khiav mus rau ib lub sijhawm, cov hlua txuas txuas tsis tau mus txog qhov tawg, ua rau cov pob txha tawg los ntawm kev qaug zog. Qhov kev puas tsuaj no feem ntau tshwm sim ntawm kev sib txuas ntawm caj npab ncaj thiab cov yas ntawm cov saw txuas.
Qhov yuav tsum tau muaj rau mining round link saw: (1) kom muaj peev xwm thauj khoom siab nyob rau hauv tib yam khoom thiab seem; (2) kom muaj kev tawg ntau dua thiab zoo dua elongation; (3) kom muaj me me deformation nyob rau hauv qhov kev txiav txim ntawm qhov siab tshaj plaws loading peev xwm los xyuas kom meej meshing zoo; (4) kom muaj zog qaug zog; (5) kom muaj kev hnav tsis kam; (6) kom muaj zog toughness thiab zoo dua nqus ntawm kev cuam tshuam load; (7) qhov ntev geometric kom tau raws li cov duab kos.
3.Mining saw ntau lawm txheej txheem
Kev tsim cov txheej txheem ntawm mining saw: bar txiav → dabtsi yog khoov thiab knitting → sib koom → vuam → thawj pov thawj → kev kho cua sov → thib ob pov thawj → tshuaj xyuas. Vuam thiab kev kho cua sov yog cov txheej txheem tseem ceeb hauv kev tsim cov mining round link saw, uas cuam tshuam ncaj qha rau cov khoom zoo. Kev tshawb fawb vuam tsis tuaj yeem txhim kho cov txiaj ntsig thiab txo cov nqi tsim khoom; Cov txheej txheem kho cua sov tsim nyog tuaj yeem muab kev ua si tag nrho rau cov khoom siv thiab txhim kho cov khoom zoo.
Txhawm rau kom ntseeg tau tias qhov vuam zoo ntawm cov saw hlau mining, phau ntawv arc vuam thiab tiv thaiv pob tw vuam tau raug tshem tawm. Flash taub qab vuam yog dav siv vim nws qhov zoo tshaj plaws xws li qib siab ntawm automation, kev siv zog tsawg thiab cov khoom ruaj khov.
Tam sim no, kev kho cua sov ntawm mining round link saw feem ntau siv nruab nrab zaus induction cua sov, nruam quenching thiab tempering. Lub ntsiab lus ntawm nruab nrab zaus induction cua sov yog tias cov qauv molecular ntawm cov khoom yog nplawm hauv qab electromagnetic teb, cov molecules tau txais lub zog thiab sib tsoo los ua kom sov. Thaum lub sij hawm nruab nrab zaus induction cua sov kho, lub inductor txuas nrog nruab nrab zaus AC ntawm qee zaus, thiab cov saw txuas txuas mus ntawm qhov sib txawv ntawm qhov ceev hauv inductor. Nyob rau hauv no txoj kev, ib tug induced tam sim no nrog tib zaus thiab opposite kev taw qhia raws li cov inductor yuav raug generated nyob rau hauv cov saw links, thiaj li hais tias cov hluav taws xob lub zog yuav hloov mus rau hauv lub tshav kub zog, thiab cov saw txuas yuav tsum tau rhuab mus rau qhov kub thiab txias yuav tsum tau quenching. thiab tempering nyob rau hauv ib lub sij hawm luv luv.
Nruab nrab zaus induction cua sov muaj ceev ceev thiab tsawg oxidation. Tom qab quenching, zoo heev quenching qauv thiab austenite grain loj tuaj yeem tau, uas txhim kho lub zog thiab toughness ntawm cov saw txuas. Nyob rau tib lub sijhawm, nws kuj muaj qhov zoo ntawm kev huv, huv, kev hloov kho yooj yim thiab kev ua haujlwm siab. Nyob rau hauv lub tempering theem, cov saw txuas vuam cheeb tsam dhau los ntawm ib tug ntau dua tempering kub thiab tshem tawm ib tug loj npaum li cas ntawm quenching nrog kev ntxhov siab nyob rau hauv ib tug luv luv lub sij hawm, uas muaj ib tug tseem ceeb heev cuam tshuam rau kev txhim kho lub plasticity thiab toughness ntawm vuam cheeb tsam thiab ncua kev pib. thiab kev loj hlob ntawm cov kab nrib pleb. Lub tempering kub nyob rau sab saum toj ntawm cov saw txuas lub xub pwg yog qis, thiab nws muaj zog dua tom qab tempering, uas yog conducive rau hnav ntawm saw txuas thaum lub sij hawm ua hauj lwm txheej txheem, piv txwv li, hnav ntawm cov saw txuas thiab meshing ntawm saw. txuas thiab cov saw sprocket.
4. Cov lus xaus
(1) Cov hlau rau mining high-strength round link saw yog tsim nyob rau hauv cov kev taw qhia ntawm siab zog, siab hardenability, siab dua yas toughness thiab corrosion kuj tshaj 23MnNiMoCr54 steel feem ntau siv nyob rau hauv lub ntiaj teb no. Tam sim no, cov qib tshiab thiab patented steel tau raug siv.
(2) Kev txhim kho ntawm cov cuab yeej cuab tam ntawm mining high-strength round link saw txhawb kev txhim kho tas mus li thiab ua tiav ntawm txoj kev kho cua sov. Daim ntawv thov tsim nyog thiab kev tswj xyuas cov cuab yeej siv hluav taws xob kom raug yog qhov tseem ceeb los txhim kho cov khoom siv ntawm cov saw hlau. Mining saw kub kho tshuab tau dhau los ua cov thev naus laus zis tseem ceeb ntawm cov saw hlau.
(3) Qhov loj, cov duab thiab cov qauv ntawm cov mining high-strength round link saw tau raug txhim kho thiab optimized. Cov kev txhim kho thiab kev ua kom zoo dua no yog ua raws li cov txiaj ntsig ntawm kev soj ntsuam kev ntxhov siab ntawm cov saw hlau thiab nyob rau hauv cov xwm txheej uas lub zog ntawm cov khoom siv mining yuav tsum tau nce ntxiv thiab qhov chaw hauv av ntawm cov thee tsuas yog txwv.
(4) Qhov nce ntawm qhov tshwj xeeb ntawm mining high-strength round link saw, kev hloov ntawm cov qauv qauv thiab kev txhim kho cov khoom siv dag zog txhawb txoj kev loj hlob sai ntawm round steel txuas saw khoom thiab thev naus laus zis.
Post lub sij hawm: Dec-22-2021