I-NiCr 80/20ucingo lokutshiza olushushuyimpahla esemgangathweni ophezulu eyenzelwe ukusetyenziswa kwe-arc spray. Le ntambo yenziwe nge-80% nickel kunye ne-20% chromium, nto leyo eyenza ukuba ibe lukhetho oluhle kakhulu lokwenza iingubo ezifuna ukumelana nobushushu obuphezulu, ukumelana nokugqwala, kunye nokumelana ne-oxidation. I-NiCr 80/20 isetyenziswa kakhulu kumashishini ahlukeneyo, kuquka i-aerospace, ukuveliswa kwamandla, i-petrochemical, kunye nemveliso, ukukhusela nokubuyisela umphezulu, ukuphucula ukumelana nokuguguleka, kunye nokwandisa ubomi bezinto ezibalulekileyo. Ukusebenza kwayo okuphezulu kwiindawo ezinzima kwenza ukuba ibe sisisombululo esithembekileyo kwizicelo ezifuna amandla.
Ukulungiswa komphezulu ngendlela efanelekileyo kubalulekile ukuze kufunyanwe iziphumo ezilungileyo ngentambo yokutshiza ngobushushu yeNiCr 80/20. Umphezulu oza kugqunywa kufuneka ucocwe ngononophelo ukuze kususwe izinto ezingcolisayo ezifana namafutha, ioyile, ukungcola, kunye nee-oxide. Ukuqhumisa igrit nge-aluminium oxide okanye i-silicon carbide kuyacetyiswa ukuze kufunyanwe uburhabaxa bomphezulu obuyi-50-75 microns. Ukuqinisekisa ukuba umphezulu ococekileyo norhabaxa kuphucula ukunamathela kwengubo yokutshiza ngobushushu, okukhokelela ekusebenzeni ngcono nasekuhlaleni ixesha elide.
| I-elementi | Ulwakhiwo (%) |
|---|---|
| I-Nickel (Ni) | 80.0 |
| I-Chromium (Cr) | 20.0 |
| Ipropati | Ixabiso eliqhelekileyo |
|---|---|
| Uxinano | 8.4 g/cm³ |
| Indawo yokunyibilika | 1350-1400°C |
| Tensile strength | 700-1000 MPa |
| Ukuqina | 200-250 HV |
| Ukumelana ne-Oxidation | Igqwesile |
| Ukuqhuba kweThermal | 15 W/m·K kwi-20°C |
| Uluhlu Lobukhulu Bokugquma | 0.2 – 2.0 mm |
| Ukugquma | < 1% |
| Ukumelana nokunxiba | Phezulu |
Ucingo lokutshiza olushushu lweNiCr 80/20 lubonelela ngesisombululo esomeleleyo nesisebenzayo sokuphucula iimpawu zomphezulu wezixhobo ezivezwe kwiimeko ezimandundu. Iimpawu zalo ezibalaseleyo zoomatshini kunye nokumelana ne-oxidation kunye nokuguguleka kwenza ukuba lube yinto exabisekileyo kwizicelo ezahlukeneyo zoshishino. Ngokusebenzisa ucingo lokutshiza olushushu lweNiCr 80/20, amashishini anokuphucula kakhulu ukusebenza kunye nobomi benkonzo yezixhobo kunye nezixhobo zawo.
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