Sandar ƙarfe ta ASTM A536 ta Nodular Cast | Sandar ƙarfe ta Spheroidal Graphite
Gabatarwar Samfuri
ASTM A536 Nodular Cast Iron Bar wani abu ne da aka ƙera daidai gwargwado don aikace-aikacen aiki mai kyau a cikin tsarin hydraulic da motoci. An yi shi bisa ga ƙa'idar ASTM A536 mai tsauri, wannan sandar ƙarfe mai siffar spheroidal graphite (SG) ta haɗa ƙarfin ƙarfe tare da mafi kyawun fasalin ƙarfe mai ƙarfi da rage girgiza. Ana daraja shi musamman saboda kyakkyawan juriyarsa ga gajiya, iya aiki da injinsa, da kuma kwanciyar hankali a ƙarƙashin matsin lamba.
Iron ɗin da aka yi da siminti, wanda kuma ake kira da ƙarfe mai ƙarfi, ya bambanta da ƙarfe mai launin toka domin sinadarin carbon yana samar da ƙusoshin graphite na spheroidal maimakon ƙusoshin da aka yi da siminti. Wannan bambancin tsarin yana ba shi ƙarfi mai yawa da kuma ƙarfin samarwa, wanda hakan ya sa ya zama abin dogaro ga muhallin ɗaukar kaya da kuma yawan damuwa.
- ana ƙera sandunan ƙarfe masu ductile bisa ga ƙa'idodin duniya. Ana bayyana nau'ikan ƙarfe masu ductile da ake amfani da su ta hanyoyi daban-daban bisa ga ƙasashe da ƙa'idodi daban-daban.
Ga waɗannan maki na ƙarfe mai ƙarfi (maki) da ake amfani da su a ƙarƙashin tsarin yau da kullun da yawa:
| ASTM A536 | A 1563 | ISO 1083 | JIS G5502 |
| 60-40-18 | EN-GJS-400-15 | GGG40 | FCD400 |
| 65-45-12 | EN-GJS-450-10 | - | FCD450 |
| 80-55-06 | EN-GJS-500-7 | GGG50 | FCD500 |
| 100-70-03 | EN-GJS-600-3 | GGG60 | FCD600 |
Bayanin Samfurin
Ana amfani da sandunan ƙarfe na ductile a fannoni kamar gears da sassan shaft a masana'antar injina, crankshafts da sandunan haɗawa a masana'antar kera motoci, bututu da sassan gini a fagen gini, sassan hydraulic a cikin injunan gini, da kuma bawuloli da jikkunan famfo a masana'antar makamashi.
Sigogin samfurin
| Sunan Samfuri | Sandar ƙarfe ta Ductile/Sandar ƙarfe mai zagaye |
| Daidaitacce | ASTM A536 EN 1563 ISO 1083 JIS G5502 |
| Diamita na Waje (OD) | 20 mm - 600 mm (ana iya gyara shi) |
| Tsawon | 1 m - 6 m (ana iya gyara shi) |
| Ƙarfin Taurin Kai | 400 – 800 MPa |
| Ƙarfin Ba da Kyauta | 250 – 500 MPa |
| Tauri | 130 – 280 HB |
| Maganin Zafi | an rufe shi, an daidaita shi, ko kuma an kashe shi kuma an daidaita shi |
| Yanayin Fuskar | An yi amfani da simintin ƙarfe / An yi amfani da injin / An bare |
| Ƙarawa | 2% – 18% |
| Matsayin isarwa | Sandunan zagaye/sandunan murabba'i/sandunan lebur ko kuma a yanka su bisa girmansu |
Aikace-aikacen Samfura
>Na'ura mai aiki da karfin ruwa silinda aka gyara
>Tsarin dakatar da motoci
>Sassan watsawa
>Jikunan famfo da kuma gidajen bawul
>Tsarin injina masu nauyi
Nunin Samfura
Zane-zanen dubawa da marufi
| Kalmomi Masu Mahimmanci
ASTM A536 sandar ƙarfe mai siminti, sandar ƙarfe mai siminti ta nodular, ƙarfe mai siffar graphite na spheroidal, ƙarfe mai siffar hydraulic SG, sandar ƙarfe mai zagaye ta ductile, ƙarfe mai siminti don abubuwan kera motoci