Hauv cov txheej txheem ntawm kev ua haujlwm, lub puab tsaig phaj feem ntau hnav, uas cuam tshuam rau kev ua haujlwm ntawm lub puab tsaig crusher. Daim ntawv no kawm txog cov khoom siv qis-carbon alloy steel ntawm lub puab tsaig crusher, thiab sib tham txog kev hloov txoj cai ntawm lub puab tsaig phaj hardness thiab hnav tsis kam, thiaj li txiav txim siab qhov kub thiab txias thaum lub puab tsaig phaj hnav tsis kam mus txog qib zoo.
Xaiv cov khoom siv lub puab tsaig
1. Hauv kev tsim khoom, lub puab tsaig phaj txav tau thiab lub puab tsaig ruaj khov yog ua los ntawm kev hnav-resistant siab manganese steel, lub ntsiab bearing liner thiab eccentric bearing liner yog ua los ntawm cam khwb cia babbitt alloy, thiab lub puab tsaig phaj yog ua los ntawm cam khwb cia hlau los txhim kho nws. durability. Lub puab tsaig phaj ntawm lub puab tsaig crusher yuav tsum tau ua haujlwm nyob rau hauv kev hnav-resistant, cuam tshuam-resistant thiab high-toughness tej yam kev mob. Cov tuam txhab sib txawv siv cov ntaub ntawv sib txawv ntawm lub puab tsaig, xws li cov hlau manganese siab, nruab nrab manganese hlau, alloy cam khwb cia hlau, nruab nrab carbon tsawg alloy hnav-resistant steel thiab siab chromium cam khwb cia hlau.
2. Nruab nrab-carbon low-alloy hnav-resistant steel yog tau los ntawm kev ntxiv ntau yam alloy ntsiab xws li Cr, Si, Mn, Mo, V nyob rau hauv lub hauv paus ntawm nruab nrab-carbon steel, thiab tag nrho cov ntsiab lus ntawm alloy yog tsawg tshaj li 5. %. Qhov no hom nruab nrab-carbon low-alloy hnav-resistant steel tuaj yeem kho cov ntsiab lus sib txawv ntawm cov pa roj carbon monoxide thiab cov ntsiab lus alloy, yog li nws tuaj yeem sib xyaw nrog cov txheej txheem kev kho cua sov sib txawv kom tau txais cov khoom sib txawv, yog li nws tau nyiam ntau dua thiab siv. Hauv daim ntawv no, kev hnav tsis kam ntawm nruab nrab carbon tsawg alloy ZG42Mn2Si1REB tau kawm, thiab kev hloov txoj cai ntawm hardness thiab hnav tsis kam nrog quenching kub tau tham txog, thiab tau txais cov txheej txheem kho cua sov zoo dua.
Tnws xaiv txoj kev kho cua sov
Raws li cov yam ntxwv ntawm ZG42Mn2Si1REB steel, cov qauv martensite tau tom qab quenching muaj zog dua thiab hnav tsis kam. Peb cov ntsiab lus kub ntawm 870 ℃, 900 ℃ thiab 930 ℃ yog xaiv rau kev kho cua sov, thiab qhov kub thiab txias yog uniformly tsau ntawm 230 ℃. Vim tias cov khoom siv tsis muaj Mo cov ntsiab lus, txhawm rau txhawm rau ua kom muaj zog, 5% Nacl tov yog siv los ua kom txias.
Cov txiaj ntsig thiab kev tshuaj xyuas
1. Kev cuam tshuam ntawm quenching kub ntawm hardness thiab hnav tsis kam
Lub hardness ntawm cov qauv quenched ntawm qhov sib txawv kub yog ntsuas los ntawm HR-150A Rockwell hardness meter, ntsuas 5 ntsiab lus txhua zaus thiab tom qab ntawd coj tus nqi nruab nrab. Nws tau pom tias nrog qhov nce ntawm quenching kub, quenching hardness thawj zaug nce thiab tom qab ntawd txo. Thaum lub quenching kub yog 870 ℃, hardness yog HRC53. Thaum lub quenching kub nce mus rau 900 ℃, lub hardness kuj nce mus rau HRC55. Nws tuaj yeem pom tias qhov hardness nce nrog qhov nce ntawm qhov kub thiab txias; Thaum qhov kub thiab txias txuas ntxiv mus rau 930 ℃, qhov hardness txo mus rau HRC54, thiab nws tuaj yeem pom tias qhov hardness siab dua thaum quenched ntawm 900 ℃. Yog li ntawd, nrog rau qhov nce ntawm qhov kub thiab txias, hnav poob qis. Thaum qhov kub thiab txias tseem nce mus txog 930 ℃, qhov hnyav poob nce mus rau 3.5mg. Nws tuaj yeem pom tias thaum quenched ntawm 900 ℃, nws hardness yog siab thiab tsis muaj qhov hnyav hnyav. Qhov nruab nrab carbon tsawg alloy hnav-resistant steel ZG42Mn2Si1REB muaj kev hnav zoo, uas tseem qhia tau tias cov txheej txheem ntawm lub sijhawm no yog cov txheej txheem kho cua sov kom raug.
2. Kev sib piv ntawm kev hnav tsis kam ntawm nruab nrab carbon tsawg alloy thiab siab manganese hlau
Txhawm rau qhia txog qhov hnav tsis kam ntawm nruab nrab carbon alloy steel ZG42Mn2Si1REB, cov khoom no tau muab piv nrog cov hlau manganese siab ZGMn13. Ntawm lawv, ZG42Mn2Si1REB raug sim raws li cov lus hais saum toj no-hais txog kev siv tshuab ntawm quenching ntawm 900 ℃ thiab tempering ntawm 230 ℃, thiab siab manganese steel ZGMn13 tau kho nrog dej toughening. Cov txiaj ntsig kev sim qhia tau hais tias qhov hnav tsis kam ntawm yav dhau los yog 1.5 npaug ntawm qhov kawg, uas qhia tau hais tias lub puab tsaig phaj ntawm nruab nrab carbon tsawg alloy hlau tau ua tiav cov peev txheej ntawm cov khoom siv thiab muaj kev hnav zoo heev hauv kev kho cua sov kom zoo.
Raws li tus nqi ntawm cov khoom muaj kev txhawj xeeb, siab manganese hlau muaj txog li 13% Mn, yog li nws yuav tsum tau noj ntau cov ntsiab lus alloy. Piv nrog rau siab manganese hlau, nruab nrab carbon tsawg alloy steel ZG42Mn2Si1REB tsuas muaj 3% ~ 4% alloy ntsiab, thiab tsis muaj cov nqi siab Cr thiab Mo cov ntsiab lus, yog li nws muaj tus nqi siab sib tw kom zoo dua. Tsis tas li ntawd, xav txog cov txheej txheem kev kho cua sov, qhov nruab nrab carbon tsawg alloy steel yog quenched ntawm 900 ℃ thiab tempered ntawm 230 ℃, thaum cov dej toughening kev kho mob siab manganese hlau feem ntau tshaj 1000 ℃, yog li lub quenching kub ntawm lub qub yog qis dua, Lub sijhawm cua sov yog luv dua, thiab lub zog txuag hluav taws xob yog qhov zoo tshaj plaws. Cov txheej txheem kho cua sov zoo dua tau siv rau lub puab tsaig ntawm lub puab tsaig crusher, uas pom tseeb txhim kho qhov hnav tsis kam, thiab hloov lub voj voog ntawm lub puab tsaig phaj tau txuas ntxiv los ntawm 150d rau 225d, nrog cov txiaj ntsig kev lag luam pom tseeb.
Los ntawm kev tshawb fawb txog kev hnav tsis kam ntawm lub puab tsaig phaj ntawm nruab nrab carbon qis alloy steel ntawm lub puab tsaig crusher, cov txiaj ntsig tau pom tias thaum quenched ntawm 900 ℃, microstructure tom qab quenching yog martensite, lub sijhawm no, lub hardness yog siab dua, hnav hnyav. poob qis dua, thiab hnav tsis kam zoo dua.
Shanvim raws li lub ntiaj teb no tus neeg muag khoom ntawm crusher hnav qhov chaw, peb tsim lub khob hliav qab crusher coj qhov chaw rau ntau hom ntawm crushers. Peb muaj ntau tshaj 20 xyoo ntawm keeb kwm nyob rau hauv lub teb ntawm CRUSHER WEAR PARTS. Txij li xyoo 2010, peb tau xa tawm mus rau Asmeskas, Europe, Africa thiab lwm lub tebchaws hauv ntiaj teb.
Post lub sij hawm: Sep-23-2022