Binciken abun ciki na fasteners

Fasteners, wanda kuma aka sani da daidaitattun sassa a kasuwa, kalma ce ta gaba ɗaya don nau'in sassan injina da ake amfani da su don haɗa sassa biyu ko fiye (ko abubuwan haɗin gwiwa) amintattu cikin gabaɗaya. Ana kiran su "mitocin masana'antu" kuma suna da aikace-aikace masu yawa a fannoni kamar kayan aiki, kayan aiki, motoci, jiragen ruwa, layin dogo, gadoji, gine-gine, gine-gine, kayan aiki, kayan aiki, kayan aiki, da kayayyaki.

Abubuwan binciken kayan aikin na fasteners sun haɗa da: girman, abun da ke tattare da sinadarai, gwaji mara lalacewa, kaddarorin injiniyoyi gami da haɗin haɗin gwiwa na torsion, ƙarfafa ƙarfin axial, ƙarfi (ƙarfin yawan amfanin ƙasa, ƙarfin ƙarfi), taurin, da kaddarorin inji gwajin na'urori na tsarin ƙarfe.

A yi maki nakusoshi ga karfe tsarin4.6, 4.8, 6.8, 8.8,10.9, 12.9, da sauransu. The kusoshi na sa 8.8 da kuma sama suna goyon bayan low-carbon gami karfe ko matsakaici carbon karfe da zafi bi, wanda ake kira gaba ɗaya.maƙarƙashiya mai ƙarfi, sauran kuma yawanci ana kiran su bolts na yau da kullun

Binciken abun ciki na fasteners

1. Girman bayyanar: zaren go/no go ma'auni, rashin ƙarfi na sama, nau'i daban-daban kamar manyan diamita, diamita na farar, ƙananan diamita, kusurwar bayanin martaba, farar, da dai sauransu.

2. Mechanical yi gwajin: tensile gwajin, rike gwajin, taurin gwajin, re tempering gwajin, tasiri gwajin, wedge load gwajin, karfi gwajin, gajiya gwajin, kulle yi, karfin juyi coefficient, tightening axial karfi, gogayya coefficient, anti zamewa coefficient, screwability gwajin, gasket elasticity, tauri gwajin, hydrogen embrittlement gwajin, da dai sauransu.

3. Chemical abun da ke ciki bincike: fastener sinadaran abun da ke ciki bincike, fastener karfe abu sa ganewa, da dai sauransu.

4. Metallographic bincike: microstructure, zurfin decarburization Layer, zurfin carburization Layer, hatsi size rating, hada abun ciki, macrostructure, da dai sauransu.

5. Failure analysis: Failure analysis, fracture analysis, fracture analysis, da dai sauransu.

6. Gwajin juriya na lalata: gwajin gwagwarmayar gishiri mai tsaka-tsaki (NSS), gwajin feshin acetate (AASS), gwajin gwajin saurin acetate na jan karfe (CASS)