Njengento ebalulekile ekuxhumekeni kwemishini, ukukhethwa kwamapharamitha wezixhumi kubalulekile ukuze kuqinisekiswe ukuzinza nokuphepha koxhumano.
1. Igama Lomkhiqizo (Okuvamile)
Igama lomkhiqizo we-fastener lihlotshaniswa ngokuqondile nesakhiwo saso nesimo sokusebenzisa. Kuzinto zokubopha ezithobelana namazinga athile, ukulebula inombolo evamile kungabonisa ngokunembile ukwakheka nokusebenza kwazo. Uma kungabikho izindinganiso ezicacile, izingxenye ezingezona ezijwayelekile (izingxenye ezingezona ezijwayelekile) zidinga imidwebo enemininingwane ukuze zibonise ubukhulu kanye nokubunjwa kwazo.
2. Imininingwane
Ukucaciswa kwama-fasteners ngokuvamile kunezingxenye ezimbili: ububanzi bentambo kanye nobude besikulufu. Amasistimu wemethrikhi naseMelika yizinhlelo ezimbili eziyinhloko zokucaciswa. Izikulufu zemethrikhi ezifana ne-M4-0.7x8, lapho i-M4 imele intambo yangaphandle engu-4mm, 0.7 imele ukuphakama, futhi u-8 umele ubude besikulufu. Izikulufu zaseMelika ezifana no-6 # -32 * 3/8, lapho u-6 # umele ububanzi bangaphandle bentambo, u-32 umele inani lemicu iyintshi ngayinye yobude bentambo, futhi u-3/8 ubude besikulufu.
3. Indaba
Izinto zokubopha zinquma amandla azo, ukumelana nokugqwala, nempilo yesevisi. Izinto ezijwayelekile zifaka i-carbon steel, insimbi engagqwali, insimbi engagqwali, ithusi, i-aluminium, njll. Insimbi yekhabhoni ingahlukaniswa ibe yinsimbi ye-carbon steel, insimbi ye-carbon steel, i-high carbon steel, ne-alloy steel. Kubalulekile ukukhetha izinto ezifanele ngokusekelwe esimeni sohlelo lokusebenza kanye nezidingo zokusebenza.
4. Izinga lamandla
Kumafasteners e-carbon steel, izinga lamandla libonisa amandla azo aqinile namandla esivuno. Amaleveli avamile ahlanganisa u-4.8, 5.8, 6.8, 8.8, 10.9, 12.9, njll. Izikulufu zamandla aphezulu, njengemikhiqizo yebanga lesi-8.8 noma ngaphezulu, ngokuvamile zidinga ukwelashwa kokucisha nokushisa ukuze kuthuthukiswe izici zazo zomshini.
5. Ukwelashwa kwendawo
Ukwelashwa okungaphezulu kuhloswe kakhulu ngayo ukukhulisa ukumelana nokugqwala kanye nobuhle bezinsimbi. Izindlela zokucubungula ezijwayelekile zifaka ukumnyama, ukucwebezelisa (okufana ne-zinc eluhlaza okwesibhakabhaka nokumhlophe, i-zinc emhlophe, njll.), i-copper plating, i-nickel plating, i-chrome plating, njll. Ukukhetha indlela yokwelapha engaphezulu efanele ngokusekelwe endaweni yokusetshenziswa nezimfuneko kunganweba ngempumelelo impilo yesevisi ye-fasteners.
Ngamafuphi, lapho ukhetha izixhumi, kuyadingeka ukuthi ucabangele ngokujulile izici ezifana negama lomkhiqizo (okujwayelekile), ukucaciswa, izinto zokwakha, izinga lamandla, nokwelashwa kwendawo ukuze kuqinisekiswe ukuthi zihlangabezana nezidingo zokusetshenziswa futhi zisebenza kahle nempilo.
Isikhathi sokuthumela: Aug-28-2024