Cov Thawj Coj Saib Xyuas Kev Ua Haujlwm ntawm Cov Chaw Khawb Pob Zeb Qhia Txog Cov Khoom Siv GET nrog Cov Ntug Txiav Uas Muaj Zog Rau Kev Ua Haujlwm Thawb Bulldozer

Kuv Kawm Tau Dab Tsi Txog GET Cov Lus Qhia rau Quarry Bulldozers Tom Qab 10 Xyoo ntawm Kev Muab Khoom Siv Mining Hnav

Xyoo 2015 thaum kuv pib muab cov cuab yeej siv hauv av (GET) rau cov haujlwm khawb av, qhov yuam kev feem ntau uas kuv pom cov thawj coj saib xyuas cov tsheb thauj khoom hauv av ua yog kev xaiv cov hniav txiav GET raws li tus nqi xwb - yuav qhov kev xaiv pheej yig tshaj plaws uas yuav haum rau lawv cov khoom siv yam tsis xav txog qhov kev sib txhuam ntawm cov khoom siv hauv av, cov sijhawm ua haujlwm hauv ib hnub, lossis tag nrho cov nqi ntawm GET siv thoob plaws lub neej ntawm cov khoom siv. Qhov tshwm sim yog kev hnav ua ntej lub sijhawm (thaum siv cov hlau qis hauv cov xwm txheej uas muaj kev sib txhuam siab) lossis tus nqi ntau dhau (thaum siv cov hniav tungsten carbide zoo hauv cov xwm txheej uas muaj kev sib txhuam tsawg qhov twg cov hlau kho cua sov txheem yuav txaus).

Tau 10 xyoo dhau los no, kuv tau muab cov khoom GET rau cov chaw ua haujlwm hauv thaj chaw zeb thoob plaws sab hnub tuaj Asia, Middle East, thiab Central Asia, txij li cov chaw ua haujlwm me me hauv tsev neeg uas tsim tau 50,000 tonnes ib xyoos mus rau cov chaw ua haujlwm loj hauv thaj chaw zeb granite uas tsim tau 2 lab tonnes ib xyoos. Kuv tau ua kev tshawb fawb txog kev hnav, tshuaj xyuas tag nrho cov nqi ntawm GET siv ib tonne ntawm cov khoom siv uas tau tsiv mus, thiab ua haujlwm nrog cov pab pawg txij nkawm kom ua kom zoo dua qhov kev hloov pauv ntawm GET thiab kev ua haujlwm. Qhov kuv tau kawm yog tias cov lus qhia GET yog kev txiav txim siab txog kev tsim kho uas siv cov ntaub ntawv, tsis yog kev txiav txim siab yuav khoom, thiab tias cov lus qhia raug tuaj yeem txo tag nrho cov nqi GET los ntawm 30-50% piv rau cov lus qhia tsis paub tseeb raws li tus nqi qis tshaj plaws thawj zaug.

Nkag Siab Txog GET Technology: Ib Leeg Hlau Piv Rau Cov Tshuab Welded-Tippet

Cov cuab yeej siv rau hauv av rau cov tsheb laij teb hauv chaw txua zeb muaj ob hom kev teeb tsa tseem ceeb: ib lub hlau (qhov twg lub adapter thiab ntug txiav yog ib qho khoom siv cam khwb cia lossis forged) thiab welded-tippet (qhov twg lub taub cam khwb cia sib cais yog welded lossis xauv tshuab rau ntawm lub adapter hlau). Kev xaiv ntawm cov kab ke no muaj feem cuam tshuam loj rau tus nqi khiav lag luam, kev xyaum txij nkawm, thiab kev pheej hmoo ntawm cov khoom siv.

Cov Txheej Txheem GET Ib Leeg Hlau

Cov txheej txheem GET ib leeg hlau yog cov qauv tsim ib txwm muaj rau cov ntug txiav bulldozer thiab tseem yog tus qauv hauv ntau qhov kev ua haujlwm hauv chaw txua zeb. Tag nrho cov khoom - los ntawm lub tshuab xauv uas koom nrog lub shank hniav dozer mus rau ntug txiav uas kov cov khoom siv hauv chaw txua zeb - yog ib daim hlau alloy kho cua sov. Thaum cov ntug txiav hnav lossis tawg, tag nrho cov khoom raug tshem tawm thiab hloov nrog ib qho tshiab.

Qhov zoo ntawm cov tshuab hlau ib leeg yog qhov yooj yim (tsis muaj kev vuam los tswj, tsis muaj cov khoom siv khaws cia rau sab saud los tshuaj xyuas, thiab tsis muaj kev pheej hmoo ntawm kev poob sab saud thaum lub sijhawm ua haujlwm) thiab kev ntseeg tau (ib qho GET hlau ib leeg uas tau teeb tsa kom raug yuav tsis ua tsis tiav hauv txoj kev uas ua rau cov hniav puas tsuaj). Qhov tsis zoo yog tus nqi: thaum cov ntug txiav hnav tawm tom qab 200-600 teev ntawm kev ua haujlwm, tag nrho cov khoom - suav nrog qhov adapter uas tsis tau muaj kev hnav hlo li - yuav tsum tau hloov. Rau cov ntaub ntawv siv hlau uas muaj kev sib txhuam siab uas cov ntug txiav hnav sai, qhov no txhais tau tias hloov 70-80% tsis hnav adapter txhua 200-400 teev, uas yog kev pov tseg nyiaj txiag.

Cov Txheej Txheem GET Welded-Tippet

Cov txheej txheem GET uas muaj welded-tippet daws qhov tsis muaj txiaj ntsig zoo ntawm cov txheej txheem ib leeg hlau los ntawm kev cais cov khoom hnav (lub taub hau) ntawm cov khoom siv qauv (lub adapter). Thaum lub taub hau hnav tawm, tsuas yog lub taub hau hloov pauv xwb - lub adapter tseem nyob rau ntawm lub hniav dozer, thiab lub taub hau tshiab raug welded lossis xauv rau hauv qhov chaw. Rau kev ua haujlwm hauv chaw txua zeb ntau, qhov no tuaj yeem txo cov nqi khiav lag luam GET los ntawm 30-40% vim tias tus nqi adapter raug amortized dhau ntawm ntau qhov hloov taub hau.

Txawm li cas los xij, cov txheej txheem welded-tippet ua rau muaj kev pheej hmoo uas tsis muaj nrog cov txheej txheem ib leeg-hlau. Qhov vuam ntawm lub taub hau thiab lub adapter yog qhov sib koom ua ke tseem ceeb uas raug kev ntxhov siab ntau los ntawm 冲击 thiab kev puas tsuaj ntawm cov khoom siv hauv chaw khawb av. Yog tias qhov vuam tsis ua raws li cov lus qhia tshwj xeeb ntawm kev khawb av (feem ntau AWS D14.1 lossis sib npaug), lossis yog tias qhov vuam tsis raug tshuaj xyuas tsis tu ncua rau qhov tawg thiab qaug zog, qhov vuam tsis ua haujlwm thaum lub sijhawm ua haujlwm tuaj yeem ua rau lub taub hau tawg thiab dhau los ua qhov projectile ceev ceev hauv chaw khawb av, lossis tuaj yeem ua rau puas tsuaj rau lub hniav dozer uas raug nqi 5-10x tus nqi kho GET. Hauv kuv qhov kev paub, qhov kev pheej hmoo ntawm qhov vuam tsis ua haujlwm yog qhov laj thawj tseem ceeb vim li cas qee tus neeg ua haujlwm hauv chaw khawb av nyiam cov txheej txheem ib leeg-hlau - lawv lees txais tus nqi siab dua rau ib qho kev hloov pauv pauv rau kev tshem tawm qhov kev pheej hmoo ntawm qhov vuam tsis ua haujlwm.

Ib qho kev xaiv thib peb uas zam kev siv nyiaj tsis zoo ntawm cov hlau ib leeg thiab kev pheej hmoo ntawm kev vuam ntawm cov hlau vuam yog lub kaw lus mechanical-lock tip, qhov twg lub taub hau raug tuav hauv lub adapter los ntawm lub kaw lus khaws cia mechanical (lub pin xauv, SetRing, lossis lub kaw lus wedge) es tsis yog los ntawm kev vuam. Lub taub hau mechanical-lock tuaj yeem hloov pauv hauv 5-10 feeb (piv rau 30-60 feeb rau lub taub hau welded), thiab lawv tshem tawm qhov kev pheej hmoo ntawm kev ua tsis tiav ntawm kev vuam, tab sis lawv xav tau kev tshuaj xyuas thiab kev saib xyuas ntawm lub tshuab xauv kom ntseeg tau tias cov taub hau tsis ploj thaum lub sijhawm ua haujlwm. Kuv pom zoo ntau ntxiv rau cov kaw lus mechanical-lock rau kev ua haujlwm hauv chaw txua zeb qhov twg qhov zoo ntawm kev saib xyuas yog hloov pauv thiab qhov twg qhov tshwm sim ntawm qhov xwm txheej poob taub hau yog qhov hnyav.

Kev Xaiv Qib Khoom Siv Raws Li Kev Sib Txhuam ntawm Cov Khoom Siv Hauv Chaw Pua Pob Zeb

Qhov kev sib txhuam ntawm cov khoom siv hauv chaw txua zeb yog qhov tseem ceeb tshaj plaws hauv kev xaiv qib khoom siv GET, thiab kev sib phim qib khoom siv rau qhov kev sib txhuam yog qhov kev txiav txim siab tseem ceeb tshaj plaws hauv GET specification. Qhov kev sib txhuam ntawm cov khoom siv hauv chaw txua zeb yog ntsuas los ntawm kev sim hauv chaw kuaj mob: qhov kev sim kev sib txhuam ntawm Los Angeles (LA75) ntsuas qhov poob ntawm cov qauv hlau txheem tom qab 500 qhov kev hloov pauv nrog cov khoom siv hauv chaw txua zeb; Cerchar abrasivity index (CAI) ntsuas qhov khawb tawv ntawm cov khoom siv hauv chaw txua zeb ntawm lub stylus hlau. Ob qho kev sim muab cov ntaub ntawv pab tau, thiab kuv feem ntau siv LA75 ua qhov kev ntsuas tseem ceeb vim nws sib raug zoo dua nrog GET hnav lub neej hauv kuv qhov kev paub hauv thaj chaw.

Cov Khoom Siv Uas Tsis Muaj Kev Sib Txhuam (Limestone, Marble, Gypsum)

Cov pob zeb limestone, marble, thiab gypsum muaj cov nqi LA75 hauv qhov ntau ntawm 20-30 (txhais tau tias cov khoom ua rau 20-30% poob phaus hauv qhov kev xeem LA75) thiab Cerchar indices ntawm 0.5-1.5. Cov ntaub ntawv no yog mos mos thiab ua rau muaj kev sib txhuam nruab nrab ntawm cov ntug txiav GET. Rau cov ntawv thov no, kuv teev cov ntug txiav hlau uas kho cua sov nrog Brinell hardness ntawm 400-500 HB, uas muab lub neej hnav txaus (300-600 teev ua haujlwm ib qho teeb tsa rau 320HP bulldozers) ntawm tus nqi qis tshaj plaws. Tungsten carbide lossis chrome carbide tips feem ntau tsis tsim nyog rau cov ntaub ntawv uas tsis muaj kev sib txhuam vim tias kev txhim kho lub neej hnav tsis ua rau muaj kev cuam tshuam 3-5 npaug ntawm tus nqi khoom siab dua.

Cov Khoom Siv Uas Muaj Kev Sib Txhuam Nruab Nrab (Sandstone, Gravel, Iron Ore)

Pob zeb xuab zeb, qee cov xuab zeb, thiab cov hlau qis dua muaj cov nqi LA75 hauv qhov ntau ntawm 40-60 thiab Cerchar indices ntawm 2.0-3.5. Cov ntaub ntawv no ua rau muaj kev hnav khaub ncaws hnyav uas yuav ua rau cov hlau kho cua sov puas tsuaj sai sai GET Rau cov ntawv thov no, kuv qhia cov hlau kho cua sov nruab nrab nrog chromium ntxiv (feem ntau 2-4% chromium) kom ua rau muaj kev nyuaj thiab hnav tsis kam, nrog Brinell hardness ntawm 500-600 HB. Qhov ntxiv chromium ua rau tus nqi nce ntxiv li ntawm 15-25% piv rau cov hlau kho cua sov txheem tab sis ntev lub neej hnav los ntawm 50-100%, ua rau nws tsim nyog rau cov ntawv thov nruab nrab-abrasiveness. Xwb, kuv qhia chrome carbide overlay phaj ntawm ntug txiav rau qhov kev daws teeb meem zoo tshaj plaws hauv cov ntaub ntawv nruab nrab-abrasiveness - qhov overlay muab qhov nyuaj ntawm 600-700 HB thaum lub substrate tseem yog cov hlau alloy tawv.

Cov Khoom Siv Uas Muaj Kev Sib Txhuam Zoo (Granite, Basalt, Quartzite)

Granite, basalt, quartzite, thiab qee cov hlau tawv muaj LA75 tus nqi hauv qhov ntau ntawm 70-100 thiab Cerchar indices ntawm 4.0-6.0. Cov ntaub ntawv no yog cov khoom siv ntuj tsim uas muaj zog tshaj plaws uas ntsib hauv kev ua pob zeb, thiab cov hlau kho cua sov GET tuaj yeem hnav tawm hauv 50-100 teev ua haujlwm hauv cov xwm txheej no. Rau cov ntawv thov siab-abrasiveness, kuv teev cov lus qhia tungsten carbide composite (nrog qhov nyuaj ntawm 1,500-1,800 HB) lossis cov phaj hlau tiv taus kev puas tsuaj nrog ultra-siab hardness (650-700 HB nto). Tus nqi ntawm cov ntaub ntawv zoo tshaj plaws no yog 3-10x tus nqi ntawm cov hlau kho cua sov, tab sis lub neej hnav ntev (1,000-4,000 teev ua haujlwm nyob ntawm qib khoom tshwj xeeb thiab qhov abrasiveness ntawm cov khoom siv pob zeb) ua rau lawv xaiv qhov zoo tshaj plaws thaum tag nrho cov nqi ntawm downtime, kev ua haujlwm, thiab kev poob khoom tsim tau suav nrog.

Tus nqi tiag tiag ntawm GET Hnav hauv kev ua haujlwm ntawm chaw khawb av

Tus nqi ntawm GET hnav hauv kev ua haujlwm hauv chaw txua zeb siab dua li feem ntau cov thawj coj chaw txua zeb paub, vim tias tus nqi ntawm qhov khoom ncaj qha tsuas yog ib feem ntawm tag nrho tus nqi. Hauv kuv qhov kev paub txog kev tshuaj xyuas cov ntaub ntawv tus nqi GET los ntawm kev ua haujlwm hauv chaw txua zeb thoob plaws ntau lub tebchaws, tag nrho tus nqi ntawm GET hnav faib kwv yees li hauv qab no: 20-30% yog tus nqi ncaj qha ntawm cov khoom GET (cov lus qhia, cov khoom siv hloov kho, cov ntug txiav); 30-40% yog tus nqi ntawm kev ua haujlwm tsis ua haujlwm rau kev hloov GET thiab kev saib xyuas hniav; thiab 40-50% yog tus nqi ntawm kev poob khoom tsim tau ntxiv rau kev puas tsuaj thib ob rau cov qauv hniav dozer uas tshwm sim los ntawm kev ua haujlwm GET dhau qhov kev hloov pauv pom zoo.

Kev Cuam Tshuam ntawm Kev Ua Haujlwm ntawm Worn GET

Thaum cov ntug txiav GET hnav dhau qhov hloov pauv pom zoo, lub dozer qhov kev thawb ua haujlwm txo qis heev. Lub bulldozer uas muaj GET khaws cia zoo tuaj yeem thawb cov khoom ntau dua 15-25% ib teev dua li tib lub tshuab nrog GET hnav ua haujlwm hauv tib qho xwm txheej. Qhov kev poob qis ntawm kev tsim khoom no tsis yog qhov pom tseeb vim nws maj mam sib sau ua ke thaum GET hnav, tab sis dhau ib hnub tsim khoom tag nrho, qhov sib txawv ntawm kev khaws cia zoo thiab GET hnav tuaj yeem sawv cev rau kev txo qis 10-20% ntawm cov khoom siv txhua hnub tsiv - uas ntawm tus nqi rooj vag quarry ntawm USD 10-30 ib tonne sawv cev rau USD 1,000-5,000 ib hnub hauv kev poob nyiaj rau kev ua haujlwm quarrying nruab nrab.

Qhov kev puas tsuaj thib ob uas tshwm sim los ntawm GET hnav yog qhov tseem ceeb tshaj plaws uas tus nqi tsis tau kwv yees. Thaum cov hniav txiav hnav mus txog qhov uas nws tsis muab qhov chaw txiav ntse lawm, cov hniav dozer pib caij mus rau ntawm cov khoom siv es tsis txiav los ntawm nws huv si. Qhov no ua rau cov hniav kov qhov chaw hauv av thiab cov phaj tis kom khawb rau cov khoom tsis tau txiav, uas ua rau cov phaj hauv qab ntawm cov hniav, cov phaj tis, thiab cov tes txuas hnav sai dua. Kuv tau pom cov kev kho cov qauv ntawm cov hniav dozer uas raug nqi USD 8,000-25,000 - tsib txog kaum npaug ntawm tus nqi GET txhua xyoo - uas tshwm sim los ntawm kev ua haujlwm nrog GET hnav dhau qhov chaw hloov pauv pom zoo.

TAU TXAIS Kev Hloov Lub Sijhawm Npaj rau Kev Ua Haujlwm ntawm Cov Neeg Ua Haujlwm Hauv Chaw Khawb Zeb

Lub sijhawm hloov GET rau cov bulldozers hauv qhov chaw ua haujlwm yuav tsum yog raws li kev ntsuas hnav, tsis yog raws li lub sijhawm teem tseg, vim tias qhov kev sib txhuam ntawm cov khoom siv hauv qhov chaw ua haujlwm sib txawv ntawm thaj chaw ua haujlwm, ntawm cov rooj zaum, thiab ntawm lub caij. Txawm li cas los xij, feem ntau cov haujlwm ua haujlwm hauv qhov chaw ua haujlwm xav tau qhov chaw pib rau lawv txoj kev npaj txij nkawm, thiab kuv muab cov lus qhia hauv qab no raws li hom khoom siv hauv qhov chaw ua haujlwm thiab chav kawm loj ntawm dozer, nrog rau cov lus qhia tias cov neeg ua haujlwm kho lub sijhawm raws li kev ntsuas qhov chaw tiag tiag.

Cov Txheej Txheem Tshuaj Xyuas

Kuv xav kom koj mus saib xyuas GET txhua zaus hloov pauv - feem ntau yog txhua 8 lossis 12 teev ua haujlwm - uas yuav siv sijhawm li 5 feeb los ua tus neeg teb xov tooj lossis tus kws kho. Kev tshuaj xyuas yuav tsum xyuas seb puas muaj: qhov ntswg qhov twg puas (ntsuas qhov ntev ntawm qhov ntswg uas tseem tshuav ntawm qhov ntswg qhov mus rau lub xub pwg adapter - hloov yog tias nyob hauv 10 hli ntawm lub xub pwg adapter); pom cov kab nrib pleb (nrhiav cov kab nrib pleb uas khiav ntawm qhov ntswg qhov mus rau qhov chaw txuas adapter - txhua qhov tawg uas ntev tshaj 5 hli yuav tsum tau hloov qhov ntswg tam sim ntawd); kev khaws qhov ntswg (rau cov tshuab xauv thiab cov tshuab vuam, xyuas kom meej tias cov taub hau ruaj khov thiab lub tshuab khaws cia tseem zoo); thiab tus adapter mob (saib seb puas muaj qhov chaw xauv adapter nkhaus lossis puas lawm uas yuav ua rau lub taub hau tsis zoo).

Lub Sijhawm Hloov Pauv Uas Tau Npaj Tseg

Rau kev npaj txij nkawm thawj zaug, kuv xav kom siv cov sijhawm hloov GET hauv qab no ua cov ntsiab lus pib, kho raws li cov ntaub ntawv tshuaj xyuas tiag tiag: rau 320HP chav kawm bulldozers (feem ntau rau cov chaw txua zeb limestone nruab nrab) hauv limestone (LA75 20-30): hloov cov lus qhia ntawm 300-500 teev ua haujlwm; hauv sandstone (LA75 40-60): hloov cov lus qhia ntawm 200-400 teev ua haujlwm; hauv granite/basalt (LA75 70-100): hloov cov lus qhia ntawm 100-200 teev ua haujlwm nrog cov lus qhia tungsten carbide. Rau 520HP chav kawm bulldozers (feem ntau rau cov chaw txua zeb loj): ntsuas cov sijhawm saum toj no los ntawm kwv yees li 0.8, vim tias cov khoom siv loj dua muaj tus nqi GET siab dua rau ib teev ua haujlwm vim yog qhov loj me ntawm cov lus qhia.

Rau cov qauv siv rau cov khoom siv mining, sab laj nrogISO 10414cov qauv khoom siv drilling pob zeb thiabSAE Internationalhnav cov lus qhia tshwj xeeb rau cov khoom siv thauj av.

Cov Lus Nug Feem Ntau

Qhov txawv ntawm cov tshuab GET ib leeg-hlau thiab cov tshuab welded-tippet rau cov tshuab bulldozers hauv chaw txua zeb yog dab tsi?

Cov txheej txheem GET ib leeg siv cov khoom siv ib daim cam khwb cia lossis cov khoom siv forged qhov twg lub adapter thiab ntug txiav yog ib daim - thaum ntug txiav hnav tawm, tag nrho cov khoom raug hloov, suav nrog lub adapter tsis hnav. Cov txheej txheem Welded-tippet siv lub taub hau cam khwb cia sib cais uas tau welded lossis xauv tshuab rau ntawm lub adapter hlau - tsuas yog lub taub hau hnav raug hloov thaum nws hnav tawm, txo cov nqi ua haujlwm los ntawm 30-40%. Cov hlau ib leeg muab kev yooj yim thiab xoom kev pheej hmoo poob taub hau; welded-tippet txo cov nqi tab sis qhia txog kev pheej hmoo tsis ua haujlwm vuam. Cov txheej txheem Mechanical-lock taub hau muab kev xaiv thib peb - ​​hloov taub hau yam tsis muaj vuam thiab tsis muaj kev pheej hmoo tsis ua haujlwm vuam.

Qib khoom siv cuam tshuam li cas rau lub neej hnav ntawm GET txiav ntug hauv cov ntawv thov chaw txua zeb?

Qib khoom siv yog qhov tseem ceeb uas txiav txim siab txog lub neej hnav ntawm GET. Cov hlau carbon txheem (300-400 HB) hnav mus txog 100-200 teev hauv cov pob zeb limestone uas siv rau kev sib tsoo. Cov hlau tsis sib xyaw uas tau kho cua sov (450-550 HB) ua rau lub neej hnav ntev txog 300-500 teev. Cov hlau chrome carbide overlay (600-700 HB) ua rau lub neej hnav ntev txog 600-1,000 teev. Cov taub hau sib xyaw tungsten carbide (1,500-1,800 HB) tuaj yeem ua rau lub neej hnav ntev txog 2,000-4,000 teev hauv cov xwm txheej sib tsoo hnyav. Qib raug yuav tsum phim nrog cov khoom siv hauv cov pob zeb LA75 lossis Cerchar abrasiveness index - kev siv cov khoom zoo hauv cov khoom siv uas tsis sib tsoo ntau yuav pov tseg nyiaj, thaum siv cov hlau txheem hauv cov khoom siv uas sib tsoo ntau ua rau hnav ntau dhau thiab puas tsuaj thib ob.

Tus nqi tiag tiag ntawm GET hnav hauv kev ua haujlwm mining yog dab tsi?

Tus nqi tag nrho ntawm GET hnav suav nrog: (1) Tus nqi ncaj qha ntawm GET ib feem — 20-30% ntawm tag nrho; (2) Tus nqi hloov pauv neeg ua haujlwm — 30-40% ntawm tag nrho (2-4 teev sijhawm tsis ua haujlwm rau ib qho kev hloov pauv); (3) Kev poob haujlwm los ntawm GET hnav txo qhov kev ua haujlwm ntawm 15-25% — 20-30% ntawm tag nrho; (4) Kev puas tsuaj thib ob rau cov phaj tis ntawm cov hniav, cov caj npab thawb, thiab cov phaj hnav hauv qab — 20-30% ntawm tag nrho. Tus nqi tag nrho tuaj yeem ncav cuag USD 3-8 ib teev ua haujlwm hauv cov xwm txheej hnyav ntawm cov chaw txua zeb. Tus nqi kho cov qauv hniav uas tshwm sim los ntawm kev ua haujlwm nrog GET hnav dhau qhov chaw hloov pauv pom zoo tuaj yeem ncav cuag USD 8,000-25,000 ib qho kev tshwm sim — 5-10x tus nqi GET txhua xyoo.

Qhov kev sib txhuam ntawm cov ntaub ntawv siv hauv chaw txua zeb feem ntau cuam tshuam li cas rau kev xaiv GET?

Qhov sib txhuam ntawm cov khoom siv hauv qhov chaw khawb av sib txawv ntau heev: pob zeb limestone mos (LA75 20-30, Cerchar 0.5-1.0) siv cov hlau kho cua sov 450-500 HB nrog lub neej hnav 300-600 teev. Cov pob zeb xuab zeb thiab cov xuab zeb uas muaj kev sib txhuam nruab nrab (LA75 40-60, Cerchar 2.0-3.0) xav tau 550-650 HB chrome carbide overlay nrog lub neej hnav 300-500 teev. Cov pob zeb granite thiab basalt uas muaj kev sib txhuam siab (LA75 70-100, Cerchar 4.0-6.0) xav tau cov taub hau tungsten carbide lossis cov hlau sib xyaw ua ke uas muaj zog heev (650-700 HB) nrog lub neej hnav 400-2,000 teev nyob ntawm qib. Ib txwm sim lossis tau txais cov ntaub ntawv LA75/Cerchar rau koj cov khoom siv hauv qhov chaw khawb av ua ntej teev qib khoom siv GET.

Cov thawj coj saib xyuas cov chaw ua haujlwm hauv chaw txua zeb yuav tsum siv lub sijhawm hloov pauv GET twg rau cov bulldozers?

Lub sijhawm hloov pauv ntawm qhov ntsuas hnav, tsis yog lub sijhawm hauv daim ntawv qhia hnub. Rau 320HP chav kawm bulldozers hauv limestone: 300-500 teev ua haujlwm rau ib qho teeb tsa taub hau. Hauv sandstone: 200-400 teev ua haujlwm. Hauv granite/basalt: 100-200 teev ua haujlwm nrog cov taub hau tungsten carbide. Rau 520HP chav kawm bulldozers, txo qhov sib txawv los ntawm kwv yees li 20%. Tshawb xyuas txhua qhov hloov pauv (txhua 8-12 teev) thiab hloov thaum taub hau taub hau hnav mus rau hauv 10mm ntawm lub xub pwg adapter, txhua qhov tawg pom los ntawm lub qhov ntswg mus rau adapter tshaj 5mm, lossis poob phaus tshaj 15% ntawm thawj. Kev ua haujlwm dhau cov qib no ua rau muaj kev pheej hmoo ntawm kev puas tsuaj thib ob ntau heev.