Isishwankathelo: Esi sikhokelo sigubungela i-QT400-18 ye-ferritic ductile iron, i-GB / T 1348 specs, izilinganiso zamazwe ngamazwe, amaxabiso omatshini, inzuzo, imida, izicelo kunye namanqaku okuphosa i-CNC.
I-QT400-18 yinqanaba lentsimbi ye-ferritic ductile echazwe phantsi kwe-GB / T 1348.
Ibonisa i-ductility ephezulu, ukuqina okuhle kobushushu obuphantsi kunye nokuguquguquka, isetyenziselwa ngokubanzi kumacandelo okuphoswa kwempembelelo.
Yintoni i-QT400-18?
I-QT400-18 yi-spheroidal graphite cast iron grade echazwe ngumgangatho waseTshayina we-GB/T 1348.
Inkqubo yokubiza amagama ilandela imigaqo esemgangathweni yamabakala entsimbi yaseTshayina: "QT" ichaza i-spheroidal graphite cast iron; I-400 ibhekisa kumandla asezantsi e-400 MPa; kwaye i-18 imele umlinganiselo wobude obuncinane obuyi-18%.
I-microstructure yayo ilawulwa yi-ferrite, enika izinto eziphathekayo i-ductile yokutyikitya kunye nokusebenza okunzima.
Ukufumana isingeniso esipheleleyo kwiziseko zentsimbi ye-ductile, iinkqubo zokuvelisa kunye nokuhlelwa ngokubanzi, unokuphonononga yethu isikhokelo esipheleleyo se-ductile iron.
Eli nqaku liza kugxininisa ngokukodwa kwi-QT400-18 kwaye ugweme ukuphinda umxholo we-iron ductile jikelele.
QT400-18 Standard & Equivalent International Grades
I-GB/T 1348 Inkcazo ye-QT400-18
I-QT400-18 ilawulwa yi-GB / T 1348, umgangatho wesizwe we-spheroidal graphite cast iron e-China.
Ukuhlolwa kokwamkelwa kweli bakala kusekelwe ikakhulu ekusebenzeni komatshini kunokwakheka kweekhemikhali ezisisigxina.
Ukwahluka okulungisiweyo, i-QT400-18L, ikwachazwa kulo mgangatho ukuhlangabezana neemfuno eziphuculweyo zobushushu obuphantsi.
IiMathiriyeli eziLinganayo kwihlabathi (ASTM / EN / ISO)
Iinjineli ezisebenza kwimizobo enqumla imida zihlala zifuna ukwenza imephu ye-QT400-18 ukuya kumabakala aqhelekileyo amazwe ngamazwe.
Ezona zilinganisi zamkelwe ngokubanzi zidweliswe ngezantsi ukuze kubhekiselwe kuzo kuphela.
Ukwamkelwa kwezinto zokugqibela kufuneka kuhlale kulandele inkcazo yolawulo lweprojekthi.
- I-ASTM A536: 60-40-18
- I-EN 1563: EN-GJS-400-18, ekwabizwa ngokuba yi-GGG40 kumagama amadala e-DIN
I-QT400-18L yintlukwano yobushushu obuphantsi obuchazwe kwi-GB/T 1348.
Ayinakuthathelwa indawo ngokuthe ngqo ngumgangatho we-QT400-18 okanye ukulingana okuqhelekileyo kwamanye amazwe ngaphandle kokuphononongwa koyilo olusemthethweni.
I-QT400-18 iMechanical & Physical Properties
Itheyibhile yokuSebenza koomatshini
Amaxabiso omatshini we-QT400-18 avavanywa kwimivalo yovavanyo oluqhelekileyo.
Eyona nxalenye yentsebenzo inokutshintsha ngokusekwe kubukhulu bodonga lokusatywa, isantya sokupholisa kunye nolawulo lwenkqubo yesiseko.
| Ipropati | Ixabiso eliphantsi elichaziweyo | Uluhlu oluqhelekileyo |
| Amandla Okuqina | 400 MPa | 400–480 MPa |
| 0.2% Ubungqina boxinzelelo | 250 MPa | 250–300 MPa |
| Ukwandisa | 18% | 18–24% |
| Ukuqina kweBrinell | — | 120–180 HBW |
| Room-Ubushushu Impact Toughness | 14 J | 14–22 J |
ULungelelo loBume beMichiza obusondeleyo
Ukubunjwa kweekhemikhali kusebenza kuphela njengereferensi yokulawula inkqubo yesithando somlilo. Ukwamkelwa kwe-QT400-18 kusekelwe kwiipropati zomatshini, kungekhona imida yeekhemikhali.
Iimveliso ezahlukeneyo zilungelelanisa i-carbon, i-silicon kunye ne-trace alloying element ukuzinzisa i-spheroidization kunye ne-ferrite matrix.
Uluhlu oluqhelekileyo lokuqamba luboniswe ngezantsi:
- Ikhabhoni: 3.5% ~ 3.9%
- I-silicon: 2.2% ~ 2.8%
- IManganese: ≤0.30%
- Phosphorus: ≤0.07%
- Isulfure: ≤0.03%
Izinto eziluncedo eziphambili kunye neMida ye-QT400-18
IiNzuzo ezingundoqo
I-QT400-18 igqame phakathi kwamabanga entsimbi ye-ferritic ductile ngokuqina kwayo okulinganayo kunye nokusebenza kwayo.
- Ubude obuphezulu kunye ne-ductility, amandla anamandla okufunxa imithwalo yempembelelo eguqukayo
- Ukuqina okuthembekileyo okuphantsi kobushushu xa kuthelekiswa namabakala entsimbi yepearlitic ductile
- Ubuchwephesha obugqwesileyo bokujika kwe-CNC, ukugaya kunye nokudika
- Ukushukuma okuhle kokudambisa amandla okujikeleza kunye nezixhobo zoxinzelelo lwehydraulic
- Ukuphosa okuphakathi kodonga oluntsonkothileyo, olubhityileyo ukuya-phakathi
Unyino kunye neemeko ezingafanelekanga
I-QT400-18 ayilona inqanaba lentsimbi ye-ductile yendalo yonke, kwaye abaqulunqi kufuneka bagweme ukuyisebenzisa ngaphaya kwemvulophu yokusebenza kwayo.
- Ubunzima bomgangatho ophantsi kwenza kube lukhetho olubi kumalungu angaphantsi kokunxitywa kwe-abrasive
- Ayikhuthazwa kwizicelo ezifuna ukumelana nokudinwa okuphezulu
- Ubukhulu bodonga buchaphazela kakhulu ukugcinwa kwe-ferrite; amacandelo ashinyeneyo anokulahlekelwa bubude obuqinisekisiweyo kunye nokuqina
- I-Welding inokwenzeka kodwa idinga iinkqubo ezingqongqo zokutshisa kunye ne-post-heat ukuze ugweme ukuqhekeka
I-QT400-18 Izicelo zoShishino eziqhelekileyo
I-QT400-18 ikhethwa xa ukuchasana kwempembelelo kunye ne-ductility ithatha indawo yokuqala ngaphezu kwamandla aphezulu okanye ubunzima.
Iqhele ukukhankanywa kumalungu afumana umthwalo owothukileyo, ukungcangcazela okanye ukugcwala okungaphaya kwamathuba athile. Funda ngakumbi malunga nathi iindawo ze-iron ductile mechanical.
Iimeko zokusetyenziswa eziqhelekileyo ziquka:
QT400-18 Casting & CNC Machining Notes
Iingqwalasela ze-Foundry ze-QT400-18
I-matrix ye-ferrite ehambelanayo yiyona nto ijoliswe kuyo esemgangathweni yemveliso ye-QT400-18.
Amaqela e-Foundry agxininise kumanyathelo amabini okulawula okubalulekileyo: unyango lwe-nodularization kunye ne-inoculation.
Ukutofa okufanelekileyo kuthintela ukumila okubandayo kunye nokuzinzisa ukumila kwegraphite spheroid.
I-shrinkage porosity kunye ne-microshrinkage ziziphene eziqhelekileyo kwi-iron ductile ye-ferritic.
Iinkqubo zokungena kunye nokunyuka kufuneka ziyilwe ukukhuthaza ukuqina kwesikhokelo, ngakumbi kwiindawo ezinobunzima.
Ukupholisa okungafanelekanga kuya kwazisa i-pearlite kwaye kunciphise ubude obungaphantsi kwe-18% yemfuno.
CNC Machining Tips
I-microstructure ethambileyo ye-ferritic ye-QT400-18 ihambisa ukusebenza komatshini ozinzileyo.
Idala iitshiphusi eziqhubekayo endaweni yothuli oluqhumayo, oluthoba ukunxiba kwesixhobo xa kuthelekiswa nentsimbi eqinileyo yepearlitic ductile.
- Ukufakwa kwe-carbide engafakwanga kusebenza kakuhle ekujikeni ngokubanzi kunye nokugaya
- Isantya sokusika sinokusetwa ngokuphakathi phezulu kunentsimbi engwevu
- Unyango lomphezulu olufana nokupeyinta, ukugquma komgubo okanye ukufakwa kwe-oyile lusetyenziswa ngokubanzi ukukhusela umhlwa emva komatshini.
Ukuba ukhangela isiko le-QT400-18 yokuphosa intsimbi ye-ductile kunye nomatshini ogqityiweyo we-CNC, unako phonononga uluhlu lwethu lwemveliso yokuphosa intsimbi.
QT400-18 vs QT450-10 Ductile Iron
I-QT400-18 kunye ne-QT450-10 ngamabakala amabini ahlala ebhidekile e-GB ductile iron.
Itheyibhile engezantsi icacisa ukungafani kwabo ekukhetheni izinto eziphathekayo.
| Ipharamitha | QT400-18 | QT450-10 |
| Ubuncinci bokuqina kokuqina | 400 MPa | 450 MPa |
| Ubuncinci bobude | 18% | 10% |
| Ulwakhiwo lweMatrix | I-ferritic ngokupheleleyo | I-Ferritic-pearlitic |
| Ukuqina kobushushu obuphantsi | Ngcono | Ngasezantsi |
| Ubunzima Uluhlu | 120–180 HBW | 160–210 HBW |
| Engcono Kwi | Impembelelo, inkonzo yobushushu obuphantsi | Amandla aphakathi, amalungu olwakhiwo ngokubanzi |
Khetha i-QT400-18 xa ukwandiswa kunye nokufunxa impembelelo kubalulekile.
I-QT450-10 ikhethwa kwizicelo ezifuna amandla aphezulu okuqina apho iimfuno ze-ductility zingangqongqo kakhulu.
FAQ
Ngaba i-QT400-18 iyafana ne-60-40-18 yentsimbi ye-ductile?
I-QT400-18 iphathwa ngokubanzi njenge-Chinese elingana ne-ASTM A536 60-40-18, kodwa ichazwe phantsi kwemigangatho eyahlukileyo.
Le mephu isebenza kuphela kuvavanyo lokuqala lwemathiriyeli.
Zonke iindlela zokwamkelwa ngokusesikweni kufuneka zilandele umgangatho weprojekthi ochaziweyo.
Ngaba i-QT400-18 inokudityaniswa?
Ukuwelda kuyenzeka ngokobuchwephesha, kodwa kufuna ulawulo lwenkqubo ngononophelo.
Ukufudumala kwangaphambili kunye nokupholisa okulawulwayo kunyanzelekile ukuphepha iindawo ezinqabileyo kunye nokuqhekeka.
Amalungu e-Weld ahlala elahlekelwa yinxalenye yesiseko se-ductility.
Uthini umahluko phakathi kwe-QT400-18 kunye ne-QT400-18L?
I-QT400-18L luhlobo lobushushu obuphantsi.
Igcina amaxabiso empembelelo eqinisekisiweyo yeCharpy kumaqondo obushushu asezantsi ovavanyo lwezixhobo zokusingqongileyo ezibandayo.
Umgangatho we-QT400-18 ubandakanya kuphela iimfuno zefuthe lobushushu begumbi.
Ngaba i-QT400-18 ifanelekile kwiindawo zokunxiba?
Ngokuqhelekileyo akukho. I-matrix yayo ethambileyo ye-ferritic inika ukuxhathisa okuncinci kwe-abrasion.
Ukusetyenziswa kwezixhobo zokunxiba, ukuqina okuphezulu kokuqina kwentsimbi, intsimbi ye-austempered ductile okanye i-alloy cast iron kufuneka ithathelwe ingqalelo endaweni yoko.
