Uma uqhathanisa i-cast cast iron ephathekayo ne-ductile iron, kubalulekile ukuqonda ukuthi nakuba kokubili kuyizinhlobo ze-cast iron, zinezakhiwo ezihlukile futhi zifanele izinhlelo zokusebenza ezahlukene. Nasi isiqhathaniso esinemininingwane:
1. Ukubunjwa Kwempahla kanye Nesakhiwo
I-Cast Iron Esebenzisekayo:
Ukwakhiwa:Insimbi ethambile ethambileidalwa yinsimbi emhlophe ephatha ukushisa, equkethe ikhabhoni esesimweni se-iron carbide (Fe3C). Ukwelashwa kokushisa, okwaziwa ngokuthi i-annealing, kudiliza i-iron carbide, okuvumela ikhabhoni ukuthi yakhe i-graphite ngendlela ye-nodular noma i-rosette.
Isakhiwo: Inqubo yokugaya ishintsha i-microstructure yensimbi, okuholela ezinhlayiyeni zegraphite ezincane, ezimise ngendlela engavamile. Lesi sakhiwo sihlinzeka ngezinto ezisebenzayo kanye nokuqina okuthile, okuyenza ibe bushelelezi kunensimbi eyisiko.
I-Ductile Iron:
Ukubunjwa: I-Ductile iron, eyaziwa nangokuthi i-nodular noma i-spheroidal graphite iron, ikhiqizwa ngokwengeza izakhi ezigoqayo njenge-magnesium noma i-cerium ensimbi encibilikisiwe ngaphambi kokuphonsa. Lezi zakhi zenza ikhabhoni yakhe njengamaqhuqhuva angama-graphite ayi-spheroidal (round).
Isakhiwo: Isakhiwo se-graphite esiyindilinga kunsimbi eyi-ductile sithuthukisa i-ductility yayo kanye nokumelana nomthelela, siyinikeze izici zomshini eziphakeme uma kuqhathaniswa nensimbi ethambileyo.
2. Izakhiwo Zemishini
I-Cast Iron Esebenzisekayo:
Amandla E-Tensile: I-cast cast iron ephathekayo inamandla aqinile aqinile, ngokuvamile asukela ku-350 kuya ku-450 MPa (megapascals).
I-Ductility: Ine-ductility enengqondo, eyivumela ukugoba noma ukonakala ngaphansi kwengcindezi ngaphandle kokuqhekeka. Lokhu kuyenza ifaneleke izinhlelo zokusebenza lapho kudingeka khona ukuguquguquka okuthile.
I-Impact Resistance: Nakuba iqinile kune-cast cast iron yendabuko, insimbi ewuketshezi ethambile ayizweli kangako uma iqhathaniswa ne-ductile iron.
I-Ductile Iron:
Amandla Okuqina: I-iron Ductile inamandla aphezulu okuqina, ngokuvamile asukela ku-400 kuya ku-800 MPa, kuye ngebanga nokwelashwa kokushisa.
I-Ductility: I-ductile kakhulu, enamaphesenti ama-elongation ngokuvamile aphakathi kuka-10% no-20%, okusho ukuthi inganwebeka kakhulu ngaphambi kokuphuka.
Ukumelana Nomthelela: I-Ductile iron yaziwa ngokumelana nomthelela omuhle kakhulu, okuyenza ilungele izinhlelo zokusebenza ezingaphansi kokulayisha okuguquguqukayo noma ingcindezi ephezulu.
3. Izicelo
I-Cast Iron Esebenzisekayo:
Ukusetshenziswa Okuvamile: I-cast cast iron ethambile ivamise ukusetshenziswa kokulingisa okuncane, okuyinkimbinkimbi njengokufakwa kwamapayipi, abakaki, nehardware lapho kudingeka khona amandla amaphakathi nokuguquguquka okuthile.
Indawo Ejwayelekile: Isetshenziswa kakhulu kumapayipi amapayipi, amapayipi egesi, nasezimbonini ezikhanyayo. Amandla okusebenza okumunca ukushaqeka nokudlidliza ayenza ifanelekele ukufakwa okubandakanya ukunyakaza kwemishini noma ukunwetshwa kokushisa.
I-Ductile Iron:
Ukusetshenziswa Okuvamile: Ngenxa yamandla ayo aphezulu kanye nokuqina, insimbi edonsa amanzi isetshenziswa ezinhlelweni ezinkulu nezidingeka kakhulu njengezingxenye zezimoto (isb., ama-crankshaft, amagiya), amasistimu wamapayipi asindayo, nezingxenye zesakhiwo ekwakheni.
Indawo Ejwayelekile: I-ayoni ene-Ductile ilungele ukusetshenziswa kumapayipi anengcindezi ephezulu, amasistimu amanzi nendle, kanye nezimo lapho izingxenye zingaphansi kokucindezeleka okukhulu kwemishini noma ukuguga.
Isiphetho
Insimbi ethambile ne-ductile iron akufani. Ziyizinhlobo ezihlukene zensimbi ekhonjiwe enezakhiwo ezahlukene kanye nokusetshenziswa.
I-ayoni ethambileyo ilungele ukusetshenziswa okungadingeki kangako lapho ukuphumelela kwezindleko kanye nezakhiwo zomshini ezimaphakathi zanele.
Ngokuphambene, i-ductile iron ikhethelwa izindawo eziyinselelo enkulu lapho kudingeka khona amandla aphezulu, i-ductility, kanye nokumelana nomthelela.
Isikhathi sokuthumela: Aug-24-2024