Silicon Carbide Tiv Thaiv Raj
Peb muab cov khoom siv ua haujlwm siabSilicon Carbide (SiC) Cov Tub Ntxhais Tiv Thaivtsim los ua haujlwm tau zoo hauv cov chaw ua haujlwm hnyav, suav nrog qhov kub thiab txias heev, kev xeb tshuaj lom neeg hnyav, kev hnav khaub ncaws thiab kev co thermal ntau zaus. Siv dav hauv metallurgy, kev kho cua sov, ceramic sintering, chemical engineering thiab kev lag luam cub tawg kub siab, peb cov raj SiC ua haujlwm ua cov tes tsho tiv thaiv hnyav rau thermocouples, burner nozzles, cov khoom hloov pauv cua sov thiab cov ntaub hauv cub tawg, ua kom lub neej ua haujlwm ntawm cov khoom siv ntev dua thiab txo cov nqi txij nkawm niaj hnub.
Peb muaj peb qib siab tshaj plaws kom phim cov kev xav tau ntawm ntau yam kev siv:Reaction-Bonded SiC (RBSiC), Recrystallized SiC (RSiC) thiab Silicon Nitride-Bonded SiC (NBSiC).Txhua qib muaj cov txiaj ntsig zoo ntawm kev ua tau zoo, thiab peb muab cov kev pabcuam tsim khoom tshwj xeeb kom ua tau raws li koj qhov loj me, qauv thiab kev ua haujlwm xav tau.
1. Kev Pabcuam Tsim Khoom Tshwj Xeeb | OEM & ODM Muaj
Peb nkag siab zoo tias cov neeg siv khoom lag luam muaj kev xav tau tshwj xeeb rau qhov loj me, cov qauv, kev teeb tsa thiab kev ua tau zoo. Peb muab cov kev daws teeb meem tshwj xeeb rau cov raj tiv thaiv SiC, suav nrog kev tsim khoom, kev tsim qauv prototype, kev tsim khoom ntau thiab kev tshuaj xyuas zoo nruj. Peb pab neeg tshaj lij yuav pom zoo qib SiC tsim nyog tshaj plaws raws li koj qhov kub ua haujlwm, hom nruab nrab, siab thiab qhov chaw teeb tsa kom ntseeg tau tias muaj kev ua tau zoo tshaj plaws thiab kev siv nyiaj tsawg rau koj qhov project.
2. Kev Kho Kom Haum
(1) Kev Kho Kom Loj:Txoj kab uas hla sab nraud xws li Φ12mm txog Φ300mm, ib qho ntev txog 3000mm, phab ntsa tuab tuaj yeem hloov kho tau los ntawm 3mm txog 30mm, nrog rau kev kam rau siab ntawm qhov ntev (± 0.5mm txog ± 1.0mm) raws li cov lus qhia ntawm cov khoom thiab cov txheej txheem xav tau kom ntseeg tau tias haum zoo nrog cov khoom siv ntawm cov neeg siv khoom.
(2) Kev Tsim Qauv & Kev Kho Kom Zoo Kawg:Txhawb qhov kawg kaw, qhov kawg qhib, qhov kawg flanged (cov flanges txheem thiab tsis txheem), kev sib txuas threaded sab hauv thiab sab nraud, sealing ring grooves, positioning qhov, thiab lwm yam kev tsim qauv. Peb kuj muab cov khoom tshwj xeeb-puab, suav nrog 45 ° / 90 ° bent raj, txo cov raj, tees, thiab finned qauv rau kev teeb tsa thiab kev siv tshwj xeeb.
(3) Kev Kho Kom Zoo Dua:Kho cov khoom siv porosity, thermal conductivity, compressive strength, thiab corrosion resistance parameters raws li cov xwm txheej ua haujlwm tshwj xeeb, optimize cov qauv khoom kom phim cov chaw ib puag ncig hnyav tshwj xeeb, thiab txhim kho lub neej ua haujlwm thiab kev ua haujlwm ruaj khov.
(4) Kev Kho Kom Haum Rau Cov Txheej Txheem:Kev hloov pauv yooj yim ntawm RBSiC, RSiC, thiab NBSiC cov txheej txheem raws li cov xwm txheej thov ntawm cov neeg siv khoom; rau cov khoom sib xyaw ua ke nyuaj, peb muab qhov tseem ceeb rau cov txheej txheem sintering ze-net-puab kom txo cov nqi ua tiav thiab xyuas kom meej tias cov qauv muaj kev ncaj ncees.
Silicon Nitride-Bonded SiC (NBSiC) Cov Tubes Tiv Thaiv
Cov raj NBSiC yog ua los ntawm cov hmoov SiC thiab silicon uas muaj cov khoom siv siab, tsim los ntawm kev rho tawm lossis grouting, tom qab ntawd nitrided ntawm 1350-1500 ° C hauv huab cua nitrogen. Cov kua siv lead ua kua silicon nitride sib txuas cov khoom SiC kom nruj, tsim cov khoom sib xyaw ua ke nrog kev tiv thaiv xeb hlau zoo heev thiab kev ua haujlwm tsis lo, zoo meej rau cov xwm txheej smelting hlau tsis yog ferrous.
1. Kev Ua Tau Zoo thiab Cov Nta Tseem Ceeb
(1) Qhov kub siab tshaj plaws ua haujlwm txog li 1500 ° C, nrog kev ua haujlwm ruaj khov hauv cov hlau molten thiab cov chaw kub siab corrosive
(2) Zoo heev tsis kam rau cov hlau molten, zinc, tooj liab, thiab lwm yam hlau uas tsis yog ferrous corrosion, tsis muaj adhesion rau cov hlau molten thiab tsis muaj cov kua hlau ua qias tuaj
(3) Kev ua tau zoo ntawm cov cua sov, ua rau muaj kev kub ceev thiab kev hloov pauv cua sov zoo rau kev saib xyuas qhov kub thiab txias kom meej
(4) Lub zog kho tshuab zoo thiab kev tiv thaiv thermal poob siab, tsim nyog rau kev pabcuam mus sij hawm ntev hauv kev sib xyaw hlau thiab kev ua yeeb yam casting.
(5) Cov porosity qis thiab cov qauv ntom ntom, zoo cais cov hlau molten, slag, thiab cov pa roj corrosive los tiv thaiv cov khoom sab hauv
2. Cov Ntawv Thov Pom Zoo
Cov raj tiv thaiv NBSiC yog tsim tshwj xeeb rau kev lag luam hlau, feem ntau yog siv rau cov raj ntsuas kub ntawm cov hlau molten, cov raj nqa, cov tes tsho tiv thaiv thermocouple aluminium / tooj liab / zinc smelting furnace, cov khoom siv tiv thaiv pas dej molten, thiab cov khoom siv casting tas mus li. Lawv yog cov kev daws teeb meem zoo tshaj plaws rau kev tiv thaiv corrosion ntawm cov hlau molten thiab cov kev ua haujlwm tsis lo.
Cov raj tiv thaiv SiC uas muaj Reaction-Bonded (RBSiC)
Cov raj RBSiC yog ua los ntawm kev siv tshuab infiltration thiab reaction sintering, siv cov hmoov SiC purity siab thiab cov khoom siv carbon raw. Cov silicon molten nkag mus rau hauv lub cev ntsuab thiab reacts hauv-situ los tsim cov qauv sib txuas ua ke, nrog 8-15% cov ntsiab lus silicon dawb. Cov txheej txheem no ua rau cov duab ze-net tsim nrog tsawg dua 1% dimensional shrinkage, xa cov nqi zoo thiab zoo tagnrho rau kev tsim khoom lag luam loj.
1. Kev Ua Tau Zoo thiab Cov Nta Tseem Ceeb
(1) Qhov kub siab tshaj plaws ua haujlwm txog li 1400 ° C, nrog kev ua haujlwm ruaj khov mus sij hawm ntev ntawm qhov kub siab tas mus li
(2) Kev ceev ceev, lub zog zoo heev, thiab kev tiv taus zoo rau kev cuam tshuam thiab kev hnav tsis zoo
(3) Kev siv nyiaj zoo tshaj plaws piv rau lwm cov qauv SiC, tsim nyog rau kev siv hauv kev lag luam loj
(4) Kev ua tau zoo dua, ua rau muaj peev xwm tsim cov khoom sib xyaw ua ke yam tsis tas ua tiav theem ob ntxiv
(5) Zoo tiv taus rau cov tshuaj xeb feem ntau, suav nrog cov huab cua acidic thiab alkaline industrial
2. Cov Ntawv Thov Pom Zoo
Cov raj tiv thaiv RBSiC siv dav rau cov raj hluav taws xob hauv lub cub tawg, cov tes tsho tiv thaiv thermocouple txheem, cov nozzles desulfurization, cov khoom sib pauv cua sov, thiab cov khoom siv hauv lub cub tawg kub. Lawv yog qhov kev xaiv zoo tshaj plaws rau cov ntawv thov uas xav tau kev ua tau zoo thiab kev tswj tus nqi, tsis tas yuav tsum muaj kev tiv thaiv kub siab tshaj 1400 ° C.
Cov raj tiv thaiv SiC (RSiC) uas tau rov ua dua tshiab
Cov raj RSiC raug sintered ntawm qhov kub siab heev (2100-2450 ° C) yam tsis muaj theem khi thib ob, tsim los ntawm kev ua kom qhuav thiab ua kom cov khoom α-SiC ntshiab. Cov qauv crystalline ntshiab no ua kom tsis muaj kev sib kis, ua rau nws yog qhov kev xaiv zoo tshaj plaws rau qhov kub siab heev thiab qhov chaw ua haujlwm huv si.
1. Kev Ua Tau Zoo thiab Cov Nta Tseem Ceeb
(1) Kev tiv taus kub heev, nrog qhov kub siab tshaj plaws txuas ntxiv mus txog 1800 ° C, tsim nyog rau cov xwm txheej ua haujlwm kub heev
(2) 100% SiC crystalline theem ntshiab, tsis muaj kuab paug, zoo tagnrho rau kev kho cua sov siab-purity thiab cua-tswj cua cub tawg
(3) Kev tiv taus kub zoo heev, muaj peev xwm tiv taus kev hloov pauv kub sai yam tsis muaj kev tawg lossis puas tsuaj
(4) Kev ua tau zoo ntawm cov cua sov thiab kev ruaj khov zoo heev, tswj kev ua kom ruaj khov hauv qab kev kub siab ntev
(5) Muaj zog tiv taus roj av thiab kev hnav tsis zoo, tsim nyog rau cov chaw ua kom sov hnyav nrog cov nqi ntws siab thiab kev cuam tshuam ntawm cov khoom me me
2. Cov Ntawv Thov Pom Zoo
Cov raj tiv thaiv RSiC feem ntau yog siv rau hauv cov qhov cub kub siab, cov cua sov cua sov, cov cua sov kho cua sov, cov qhov cub kub siab, cov khoom siv hluav taws xob ceramic siab, thiab cov khoom siv tshuaj tiv thaiv kub siab tshwj xeeb. Lawv tsis tuaj yeem hloov pauv rau cov xwm txheej uas xav tau kev tiv taus kub siab heev, kev ntshiab siab, thiab kev ruaj khov thermal heev.
| Yam ntxwv | Si₃N₄-SiC | R-SiC | RB-SiC |
| Kub Ua Haujlwm Ntev | 1350 ℃ | 1600 ℃ | 1200 ℃ |
| Kev Tiv Thaiv Kev Kub Ntxhov | Zoo tshaj plaws | Zoo | Nruab Nrab |
| Cov Khoom Siv Antioxidant | Zoo | Zoo tshaj plaws | Nruab Nrab |
| Kev Tiv Thaiv Kev Xeb | Muaj zog (tiv taus cov kua qaub thiab alkalis / hlau yaj) | Muaj zog (tiv taus oxidation thiab corrosion) | Nruab Nrab (Tsis txhob siv cov alkalis muaj zog/aluminium yaj) |
| Qhov porosity | 3%–5% | 5%–8% | <1% |
| Kev Tiv Thaiv Kev Cuam Tshuam | Muaj zog heev | Tsis muaj zog | Nruab Nrab |
| NSiC Kev Tiv Thaiv Raj | |
| Cov Ntawv Qhia | Cov ntaub ntawv |
| Qhov Ceev Ntau (g / cm3) | 2.75-2.82 |
| Qhov porosity (%) | 10-12 |
| Lub Zog Nqus (MPa) | 600-700 |
| Lub zog khoov (MPa) | 160-180 |
| Cov Qauv Hluas (GPa) | 220-260 |
| Kev Ua Kub (W / MK) | 15 (1200 ℃) |
| Kev Nthuav Dav Kub (20-1000 ℃) 10-6k-1 | 5.0 |
| Kub Ua Haujlwm Siab Tshaj (℃) | 1500 xyoo |
| Si3N4 (%) | 20-40 |
| A-SIC (%) | 60-80 |
Cov Lus Nug Feem Ntau
Xav tau kev pab? Nco ntsoov mus saib peb cov rooj sib tham txhawb nqa kom tau cov lus teb rau koj cov lus nug!
Peb yog cov chaw tsim khoom tiag tiag, peb lub Hoobkas tshwj xeeb hauv kev tsim cov khoom siv refractory rau ntau tshaj 30 xyoo. Peb cog lus tias yuav muab tus nqi zoo tshaj plaws, qhov kev pabcuam ua ntej muag thiab tom qab muag zoo tshaj plaws.
Rau txhua txoj kev tsim khoom, RBT muaj lub kaw lus QC tiav rau cov tshuaj lom neeg thiab cov khoom siv lub cev. Thiab peb yuav sim cov khoom, thiab daim ntawv pov thawj zoo yuav raug xa nrog cov khoom. Yog tias koj muaj cov kev xav tau tshwj xeeb, peb yuav sim peb qhov zoo tshaj plaws los pab txhawb lawv.
Nyob ntawm seb muaj pes tsawg, peb lub sijhawm xa khoom txawv. Tab sis peb cog lus tias yuav xa khoom sai li sai tau nrog kev lees paub zoo.
Tau kawg, peb muab cov qauv dawb.
Yog, tau kawg, koj tuaj yeem mus xyuas RBT lub tuam txhab thiab peb cov khoom.
Tsis muaj kev txwv, peb tuaj yeem muab cov lus qhia zoo tshaj plaws thiab kev daws teeb meem raws li koj qhov xwm txheej.
Peb tau ua cov khoom siv refractory rau ntau tshaj 30 xyoo, peb muaj kev txhawb nqa kev txawj ntse thiab kev paub nplua nuj, peb tuaj yeem pab cov neeg siv khoom tsim cov cub tawg sib txawv thiab muab kev pabcuam ib zaug.
