Lub nplhaib tuag yog lub plawv ntawm lub tshuab pellet. Nws cov khoom siv thiab qhov zoo ntawm kev tsim khoom ncaj qha txiav txim siab qhov zoo ntawm pellet, peev xwm tsim khoom, kev siv hluav taws xob, thiab qhov tseem ceeb ntawm tus nqi ib tuj. Thaum lub nplhaib tuag hnav ua ntej lub sijhawm, thaiv ntau zaus, lossis tsim cov pellets tsis ruaj khov, qhov ua rau feem ntau yog los ntawm kev xaiv cov khoom siv lossis kev tsim khoom luv luv. Tsab xov xwm no tshuaj xyuas ob tsev neeg tseem ceeb ntawm cov khoom siv tuag nplhaib martensitic stainless hlau (X46Cr13 / 4Cr13) thiab alloy hlau (20CrMnTi) thiab cov txheej txheem tsim khoom uas txhais cov khoom siv rau hauv kev ua haujlwm.
Vim li cas cov khoom siv tuag nplhaib tseem ceeb
Thaum lub sijhawm tsim cov pellet, lub nplhaib tuag ua haujlwm nyob rau hauv tib lub sijhawm siab siab, kev sib txhuam siab, thiab kev ntxhov siab mechanical. Cov khoom noj mash raug yuam los ntawm cov qhov tuag los ntawm cov menyuam nias thaum cov pa, dej noo, cov zaub mov, thiab cov khoom xyaw abrasive ua haujlwm tas li ntawm qhov chaw ua haujlwm thiab phab ntsa qhov. Kev xaiv cov khoom siv tsis zoo tuaj yeem ua rau muaj ntau yam teeb meem: kev hnav qhov sai dua, kev ruaj khov ntawm kev sib tsoo poob qis, txo qis pellet hardness, kev thaiv pwm ntau zaus, kev ntsuas qhov chaw sab hauv, thiab kev pheej hmoo tawg siab [1].
Qhov kev pheej hmoo ntawm kev lag luam yog qhov tseem ceeb heev. Lub pwm pheej yig dua uas yuav tsum tau hloov ntau zaus, ua rau lub sijhawm tsis ua haujlwm ntau dua, lossis ua rau lub pellet tsis zoo yuav kim dua hauv tus nqi tag nrho ntawm kev muaj dua li lub pwm zoo uas muaj lub neej ua haujlwm ntev dua.
Cov Tsev Neeg Khoom Siv: Kev Txheeb Xyuas Sib Piv
Kev lag luam pwm siv ob pawg khoom siv, qhov kev xaiv yog los ntawm kev pub mis, kev ua haujlwm, thiab kev pheej hmoo ntawm kev xeb.
Pawg thawj yog Martensitic Stainless Steel, nrog rau cov qib ib txwm muaj xws li X46Cr13 thiab 4Cr13, ua tiav qhov nyuaj ntawm HRC 52 60. Lub zog tseem ceeb suav nrog qhov nyuaj siab, tiv taus corrosion, thiab lub neej ua haujlwm ntev. Qhov kev txwv tseem ceeb yog tus nqi siab dua. Cov ntawv thov feem ntau suav nrog nqaij qaib, pub dej, thiab cov mis hnav siab.
Pawg thib ob yog Alloy Steel, nrog rau cov qib ib txwm muaj xws li 20CrMnTi, 40Cr, thiab 42CrMo, ua tiav qhov nyuaj ntawm HRC 55 60. Lub zog tseem ceeb suav nrog kev tawv zoo, tus nqi pheej yig, thiab lub zog kho tshuab zoo heev. Qhov kev txwv tseem ceeb yog qhov tsis kam tiv thaiv corrosion qis dua. Cov ntawv thov feem ntau suav nrog nqaij qaib, tsiaj txhu, thiab cov biomass txheem. Qhov chaw: [1], [2].
X46Cr13 / 4Cr13: Tus Txheej Txheem Kev Lag Luam rau Cov Khoom Siv Nplhaib Zoo Tshaj Plaws
X46Cr13 (DIN 1.4034, Suav lub npe 4Cr13) yog cov hlau tsis xeb martensitic thiab yog cov khoom siv dav tshaj plaws rau kev tuag nplhaib pub rau cov kws tshaj lij. Nws txoj kev tswj hwm tsis yog qhov xwm txheej tab sis los ntawm kev sib npaug zoo ntawm cov khoom.
Qhov Nyuaj. Tom qab kev kho cua sov los ntawm lub tshuab nqus tsev, X46Cr13 ua tiav HRC 52 60 ntawm qhov chaw ua haujlwm thaum tseem khaws cov tub ntxhais kom ruaj khov. Piv txwv li, cov lus qhia tsim khoom ntawm Shanbao tsom mus rau HRC 52 55, thaum Hongyang cov pwm zoo tshaj plaws ua tiav HRC 58 60 los ntawm kev ua kom lub tshuab nqus tsev khov kho [2], [3].
Kev Tiv Thaiv Kev Xeb. Cov ntsiab lus chromium (kwv yees li 13%) muab kev tiv thaiv zoo dua rau cov dej noo, pa dej, thiab cov khoom xyaw pub uas xeb me ntsis dua li cov hlau alloy. Rau cov qauv pub dej uas muaj cov dej noo ntau dua, lossis rau cov chaw ua haujlwm hauv huab cua noo, qhov kev tiv thaiv xeb no ncaj qha ua rau lub neej tuag ntev dua [1].
Kev Tiv Thaiv Kev Hnav. Kev sib xyaw ua ke ntawm cov pa roj carbon ntau thiab chromium carbides tsim thaum lub sijhawm kho cua sov tsim cov nplaim uas tiv thaiv kev hnav uas tswj tau qhov geometry dhau sijhawm ntau lawm. Hauv kev sim sib piv, X46Cr13 lub nplhaib tuag yeej ib txwm ua tau zoo dua li cov hlau alloy tuag hauv cov nqaij qaib thiab cov khoom noj hauv dej uas hnav ntau [1].
Txoj Cai Xaiv Ua Tau. Rau cov chaw ua khoom noj uas qhov ua tsis tiav tseem ceeb yog qhov hnav qhov, sab hauv ntawm qhov chaw puas tsuaj, lossis poob peev xwm es tsis yog kev xeb tshuaj X46Cr13 sawv cev rau qhov kev xaiv khoom siv muaj zog tshaj plaws. Ib qho kev tshawb fawb ntawm Hongyang Kazakhstan tau sau tseg lub neej ua haujlwm ntawm lub nplhaib tuag ntawm 880 teev (nce los ntawm 600 teev ntawm lub tshuab hloov pauv) nrog X46Cr13-sib npaug tuag, sawv cev rau 46.7% kev txhim kho [3].
20CrMnTi Alloy Steel: Tus neeg ua haujlwm pheej yig.
20CrMnTi yog cov hlau sib xyaw ua ke uas siv dav rau cov nplhaib tuag hauv cov nqaij qaib, tsiaj txhu, thiab qee cov ntawv thov biomass qhov twg kev pheej hmoo ntawm kev xeb tsawg thiab qhov sib piv ntawm tus nqi thiab kev ua tau zoo yog qhov tseem ceeb.
Kev Ruaj Khov. 20CrMnTi muaj kev ruaj khov zoo heev, uas yog qhov muaj txiaj ntsig thaum lub tshuab pellet khiav hauv qab qhov hnyav sib txawv, thaum cov mis pub muaj cov khoom me me, lossis thaum kev hloov kho lub log tsis tuaj yeem tswj tau qhov tseeb zoo tshaj plaws [1].
Qhov Nyuaj. Tom qab carburizing thiab quenching, 20CrMnTi ua tiav HRC 55 60 ntawm qhov chaw nrog lub hauv paus tawv. Qhov kev sib xyaw ua ke no tiv taus kev hnav ntawm qhov chaw thaum nqus cov khoom hnyav uas yuav tawg cov khoom tawg yooj yim dua [2].
Cov Ntaub Ntawv Txog Lub Neej Ua Haujlwm. Hauv kev ua haujlwm hauv thaj teb, 20CrMnTi lub nplhaib tuag ua tiav 2,000 3,000 teev ntawm cov khoom noj qaib ua los ntawm cov nplej thiab 1,200 1,800 teev ntawm kev tsim cov ntoo pellet uas muaj kev sib txhuam me ntsis. Ntawm cov ntaub ntawv sib txhuam heev xws li cov txhuv nplej (Mohs hardness 7 vim muaj silica), lub neej ua haujlwm tuaj yeem poob rau 800 1,500 teev [4].
Cov Kev Txwv. Qhov tsis muaj zog tseem ceeb yog kev tiv taus xeb. Hauv cov qauv uas muaj cov dej noo ntau, ntsev, lossis cov khoom acidic, 20CrMnTi yooj yim raug xeb thiab tshuaj lom neeg tawm tsam uas ua rau qhov chaw tuag ntxhib, ua rau muaj kev sib txhuam ntau ntxiv, txo cov khoom siv, thiab ua rau lub neej ua haujlwm luv luv txawm tias kev ua haujlwm hnav tsis zoo li cas los xij [1].
Cov Khoom Siv TSIS Haum Rau Cov Khoom Siv Ua Nplhaib Pub Noj Qib Professional
Nws yog ib qho tseem ceeb kom piav qhia txog qhov kev nkag siab yuam kev uas feem ntau pom. Txawm hais tias qee lub tshuab pellet dav dav qhia txog cov hlau bearing (xws li GCr15 / 52100) ua cov khoom siv nplhaib tuag, cov no feem ntau yog qhov tsim nyog rau cov tuag tiaj tus hauv cov haujlwm biomass me me. GCr15 muaj cov yam ntxwv thermal nthuav dav sib txawv thiab tsis muaj kev tiv thaiv corrosion thiab kev cuam tshuam toughness uas xav tau rau cov tuag nplhaib pub qib kev ua haujlwm nyob rau hauv cov xwm txheej kev lag luam ruaj khov. Cov tshuab pub pellet kev tshaj lij yuav tsum siv X46Cr13 / 4Cr13 martensitic stainless hlau lossis 20CrMnTi alloy hlau rau cov tuag nplhaib [1].
Cov Txheej Txheem Tsim Khoom: Qhov twg Cov Khoom Siv Sib Tw Nrog Kev Ntsuas Tseeb
Kev xaiv cov khoom siv yog qhov tsim nyog tab sis tsis txaus. Cov txheej txheem tsim khoom txiav txim siab seb cov khoom siv cov yam ntxwv theoretical puas txhais tau tias ua haujlwm tau zoo.
Kev ntaus nrig. Kev tsim cov pwm zoo pib nrog cov pwm nyoos. Cov chaw tsim khoom zoo siv cov pwm tshwj xeeb nrog cov khoom siv raw-chromium siab thiab tswj tau qhov nyuaj ntawm cov pwm (HB 180 220). Kev ntaus nrig kom zoo yuav ua rau cov qauv ntawm cov noob zoo nkauj dua, tshem tawm cov qhov khoob sab hauv, thiab tuaj yeem ntev lub neej pwm kawg li ntawm 15% piv rau lwm cov pwm uas tsis ntaus nrig [5].
Kev Tho Phom. Cov qhov tuag yog tsim los ntawm kev siv cov tshuab tho phom CNC uas ua haujlwm ntawm qhov ceev txog li 15,000 RPM. Qhov du yog qhov tseem ceeb ntawm qhov zoo: cov qhov ntxhib dua ua rau muaj kev sib txhuam ntau dua, txo cov khoom siv, thiab ua kom hnav sai dua. Cov tuam txhab tsim khoom zoo tshaj plaws ua tiav qhov chaw tiav ntawm Ra 0.4 0.8 μm ntawm phab ntsa qhov sab hauv, ze rau qhov zoo ntawm kev txhuam iav [5].
Kev Kho Mob Kub Los Ntawm Lub Tshuab Nqus Tsev. Kev kho mob kub yog ib kauj ruam tseem ceeb tshaj plaws. Kev kho kom tawv los ntawm lub tshuab nqus tsev piv rau cov txheej txheem atmospheric lossis ntsev-da dej ua tiav qhov nyuaj sib xws yam tsis muaj oxidation ntawm qhov chaw lossis decarburization. Cov txheej txheem tsom mus rau HRC 52 60 ntawm qhov chaw ua haujlwm thaum khaws cia lub hauv paus tawv kom tiv taus kev tawg hauv qab qhov kev thauj khoom cyclic ntawm cov khoom noj muaj fiber ntau [5], [3].
Kev Ua Tiav CNC. Tom qab kev kho cua sov, lub pwm yuav raug tig CNC, countersinking, thiab sib tsoo ntawm lub qhov sab hauv. Kev countersinking yog ua los ntawm cov tshuab CNC countersinking tsis siv neeg kom ntseeg tau tias cov qhov nkag sib xws, thaum lub qhov sab hauv yog sib tsoo rau qhov kev kam rau siab uas ua kom muaj qhov sib txawv ntawm cov menyuam mus rau cov pwm thoob plaws tag nrho qhov ncig [5].
Kev Txheeb Xyuas Zoo. Cov chaw tsim khoom zoo tshaj plaws txheeb xyuas qhov nyuaj, qhov kam rau siab ntawm lub qhov (± 0.15 hli rau cov pwm siab), qhov tiav ntawm qhov chaw, thiab qhov sib piv ntawm kev nias ua ntej xa khoom. Qee cov chaw tsim khoom siv laser-etch qhov sib piv ntawm kev nias thiab qib khoom ncaj qha rau ntawm lub cev pwm rau tus neeg teb xov tooj siv [3].
Xaiv Cov Khoom Siv Zoo: Lub Hauv Paus Kev Txiav Txim Siab
Cov txheej txheem txiav txim siab rau kev xaiv cov khoom siv yog raws li nram no. Rau cov nqaij qaib lossis tsiaj txhu pub rau hauv qhov chaw qhuav, 20CrMnTi raug pom zoo ua qhov kev xaiv pheej yig. Rau cov nqaij qaib lossis tsiaj txhu pub rau hauv qhov chaw noo noo lossis hloov pauv av noo, X46Cr13 lossis 4Cr13 raug pom zoo. Rau cov zaub mov hauv dej (ntses/cwj mem) uas muaj av noo ntau, X46Cr13 lossis 4Cr13 raug pom zoo. Rau cov pellet ntoo uas muaj kev pheej hmoo xeb tsawg, 20CrMnTi raug pom zoo. Rau cov qauv siab-abrasive uas muaj cov zaub mov lossis silica, X46Cr13 lossis 4Cr13 raug pom zoo. Rau lub neej ua haujlwm siab tshaj plaws, X46Cr13 lossis 4Cr13 nrog kev kho cua sov nqus tsev rau HRC 58 60 raug pom zoo. Rau cov ntawv thov qauv txwv tsis pub siv nyiaj, 20CrMnTi raug pom zoo.
Xaus lus
Kev xaiv cov khoom siv pwm yog qhov kev txiav txim siab engineering nrog cov txiaj ntsig nyiaj txiag ncaj qha. X46Cr13 martensitic stainless hlau nrog nws qhov sib npaug ntawm qhov nyuaj, kev tiv thaiv hnav, thiab kev tiv thaiv corrosion sawv cev rau tus qauv kev lag luam rau cov pwm pwm zoo tshaj plaws. 20CrMnTi alloy steel muab lwm txoj hauv kev pheej yig rau cov ntawv thov txheem nrog kev pheej hmoo corrosion tsawg. Cov txheej txheem tsim khoom tshwj xeeb tshaj yog kev kho cua sov hauv lub tshuab nqus tsev thiab kev xuas phom precision yog qhov tseem ceeb rau kev txhais cov khoom siv rau hauv kev ua haujlwm. Rau cov chaw tsim khoom nrhiav kev txo tus nqi ib tuj thiab txuas ntxiv lub sijhawm hloov pwm, kev nqis peev rau qhov zoo ntawm cov khoom siv thiab kev tsim khoom precision feem ntau ua rau muaj txiaj ntsig ntau dua li tus nqi yuav khoom ntxiv.
Lub sijhawm tshaj tawm: Lub Rau Hli-20-2026
