
Wear-Resistant Alloys ikirasi yezvishandiso zvakanyatsogadzirwa kuti zvimire kushatiswa kwepasi uye kurasikirwa kwezvinhu kunokonzerwa nekupfeka kwemuchina. Kupfeka uku kunogona kuguma neabrasion (kukorobha), kukukurwa (kukanganiswa nezvidimbu), kunamatira (kugwinha uye kubata), uye kukanganisa.
Basa ravo rekutanga nderekuwedzera hupenyu hwesevhisi yemidziyo yemaindasitiri, kuderedza nguva, uye kuvandudza kushanda zvakanaka munzvimbo dzinodiwa.
Sayenzi Yekuramba Kupfeka
Pfeka kuramba haisi chinhu chimwe chete sechinhu chakaita density; iyo yakaoma system maitiro. Kiyi yekuramba kupfeka kwechinhu chiri mukukwanisa kwayo kuramba deformation yepurasitiki uye kutsemuka. Izvi zvinonyanya kuwanikwa kuburikidza ne:
High Hardness: Inorambira kupinda uye kubvongodzwa nezvidimbu zvakaomarara.
Kuomesa basa: Iko kugona kuoma uye kuomarara pamusoro kana yakanganiswa kana kusimbiswa (semuenzaniso, Hadfield manganese simbi).
Kuoma: Inorambira kucheka, kuputika, uye spalling pasi pemitoro inorema.
Microstructure: Kuvapo kwema carbides akaoma (semuenzaniso, chromium, tungsten, vanadium carbides) yakavharidzirwa musimbi yakaoma matrix chinhu chinowanzoitika.
Masimbi asingapfeki anowanzobva pasimbi (simbi nesimbi) kana simbi dzisiri ferrous, imwe neimwe yakarongedzerwa mapfekero chaiwo.
| Alloy Type / Base | Hunhu Hunokosha | Common Giredhi / Mienzaniso | Primary Applications |
| Martensitic Steels | Kuoma kwepamusoro uye simba rakanaka; inowanikwa kuburikidza nekupisa kurapwa (quenching & tempering). | AR400, AR500, 4140, 4340 | Mabhaketi ekuchera, macrusher liners, bulldozer blades, ma plates ekupfeka. |
| Austenitic Manganese Steel | "Hadfield Steel". Kunyanya kuoma uye kushanda-kuoma. Pakukanganisa, kuoma kwayo kwepamusoro kunowedzera zvakanyanya nepo musimboti uchiramba wakaoma. | A128 Giredhi C, MN13, MN18 | Jaw crusher liner, matatya enjanji, zvibooreso zvematombo, makwara anokambaira. |
| High-Chromium White Kukandira Iron | Kusarudzika abrasion kuramba nekuda kwehuwandu hwehuwandu hwezvakaoma chromium carbides. Inogona kuva brittle pasi pesimba. | Ni-Hard, A532 | Slurry pombi casings, mill liner, pulverizer rolls, pfuti inoputika michina. |
| Carbide Composites | Kwete monolithic alloy, asi yakakosha kupfeka-resistant zvinhu. Hard tungsten carbide zvimedu zvakanyudzwa mune yakaoma simbi matrix (secobalt kana nickel). | Tungsten Carbide-Composites, Stellite (Cobalt-yakavakirwa) | Waya dzakaoma, ma plates, maturusi ekucheka, zviboorero, zvigaro zvevharuvhu. |
| Cobalt-Yakavakirwa Alloys | Kupokana kwakanakisa kune musanganiswa wekupfeka, ngura, uye tembiricha yepamusoro (yakatsvuka-kuoma). | Stellite, Haynes alloys | Gas turbine blades, high-temperature valves, saw tips, injini components. |
| Nickel-Based Alloys | Zvakafanana necobalt alloys, inopa kupfeka kwakanaka uye kusagadzikana kwekuora, inowanzoshandiswa uko cobalt isina kukodzera. | Inconel, Colmonoy | Chemical processing equipment, aerospace components, hardfacing overlays. |
Aya alloys haawanzo kushandiswa kugadzira zvikamu zvese. Iwo anowanzo shandiswa nenzira dzinodhura-dzinoshanda kuchengetedza hwaro zvinhu:
Cast Components: Iyo chikamu (senge pombi casing) inokandwa zvachose kubva pakupfeka-inodzivirira alloy.
Pfeka Plates: Mashizha esimbi yakaomeswa (semuenzaniso, AR400) akasungwa kana kusungirirwa panzvimbo dzine njodzi.
Hardfacing / Cladding: Rudzi rwechivharo chinodzivirirwa rinosungirirwa kana kubatanidzwa pamusoro pesimbi yakachipa, yakasimba. Iyi inzira yakajairika uye ine hupfumi.
Thermal Spray: Iyo alloy yakapfekwa inopfapfaidzwa pamusoro kuti igadzire dhizaini isingapfeke.
Muchidimbu, Wear-Resistant Alloys imhuri yakasiyana uye yakaoma yezvinhu zvinoumba musana weindasitiri inorema. Kusarudzwa kweiyo alloy yakakodzera kunoenderana nekunyatsonzwisiswa kwemaitiro ekupfeka (abrasion, kukanganisa, nezvimwewo), nharaunda yekushanda (kusanganisira tembiricha uye ngura), uye kufunga nezvehupfumi.