ZVINOSHANDISWA:
Yakakodzera kusungirirwa kwesimbi ine grey yakasimba uye simbi ine nodular cast, senge cylinder, engine block, gear box, nezvimwewo.
KUGADZIRWA KWEMAHARA:
AWS A5.15 / ASME SFA5.15 ENiFe-CI
JIS Z3252 DFCNiFe
HUNHU:
AWS ENiFe-CI (Z408) ielectrode yesimbi yakakandwa ine nickel iron alloy core uye kuderedza kwakasimba kwegraphite coating. Inogona kushandiswa muAC neDC dual purpose, ine arc yakagadzikana, uye iri nyore kushandisa. Electrode iyi ine hunhu hwesimba rakakwirira, plasticity yakanaka, low linear expansion coefficient nezvimwewo. Kuramba kutsemuka kwesimbi yakakandwa yegrey kwakafanana nekweZ308, nepo kuramba kutsemuka kwesimbi yakakandwa yenodular kwakawanda kupfuura ENi-CI (Z308). Kune simbi yakakandwa ine phosphorus yakakwira (0.2%P), inewo mhedzisiro yakanaka uye kushanda kwayo kwekucheka kwakaderera pane Z308 neZ508 zvishoma. Z408 inoshandiswa mukusveta simbi yakakandwa yegrey nenodular yekamuri.
TARISIRO:
Usati wabatanidza, maerekitirodhi anofanira kubikwa kweawa imwe chete tembiricha ye150±10℃ usati waashandisa.
Pakupinza simbi, zvakakodzera kushandisa weld yakamanikana uye urefu hweweld yega yega hahufanirwe kudarika 50mm. Putira nzvimbo yekupinza simbi zvishoma nenyundo mushure mekupinza simbi kuitira kubvisa kushushikana uye kudzivirira kutsemuka.
Zvinokurudzirwa kushandisa kupisa kwakaderera.
KUUMBIKA KWEMHEMIKIRI YESIMBIRI YAKADZORERWA (CHIKAMU CHEMASIMBA): %
| Zvinhu zviri mukati | C | Si | Mn | S | Fe | Ni | Cu | Huremu hwezvimwe zvinhu |
| Kukosha kwakajairika | 0.35-0.55 | ≤0.75 | ≤ 2.3 | ≤0.025 | 3.0- 6.0 | 60- 70 | 25- 35 | ≤ 1.0 |
KUWELDING REference current:(AC,DC+)
| Dhayamita yeElectrode (mm) | 3.2 | 4.0 | 5.0 |
| Kureba (mm) | 350 | 350 | 350 |
| Kuwedera kwemagetsi (A) | 90-110 | 120-150 | 160-190 |
Hunhu hweMashandisirwo:
Arc yakasimba kwazvo.
Kubviswa kwakanaka kwetsvina.
Kupinda mukati hakuna kudzika.
Kudzivirira kupisa nekuora zvakanaka.
Kudzivirira kutsemuka kwakanaka.
