Kuyang'ana zomwe zili mu fasteners

Ma Fasteners, omwe amadziwikanso kuti magawo okhazikika pamsika, ndi mawu wamba amtundu wamakina omwe amagwiritsidwa ntchito kulumikiza motetezedwa magawo awiri kapena kuposerapo (kapena zigawo) zonse. Amatchedwa "mamita mafakitale" ndipo amagwiritsa ntchito kwambiri m'makina, zida, magalimoto, zombo, njanji, milatho, nyumba, zomanga, zida, zida, zida, ndi zida.

Zinthu zowunikira magwiridwe antchito a zomangira zimaphatikizira: kukula, kapangidwe kake, kuyezetsa kosawononga, makina amakina ophatikizira ma bolt a torsion, kulimbitsa mphamvu ya axial, kulimba (mphamvu zokolola, kulimba kwamphamvu), kuuma, ndi kuyesa kwamakina kwa zomangira zitsulo.

Magiredi ochita bwino azomangira zitsulo structuralkujowina ndi 4.6, 4.8, 6.8, 8.8,10.9, 12.9, etc. Maboliti a giredi 8.8 ndi pamwambapa amathandizidwa ndi chitsulo chochepa cha carbon alloy kapena sing'anga kaboni chitsulo ndi kutentha mankhwala, amene nthawi zambiri amatchedwa.mabawuti amphamvu kwambiri, ndipo ena onse amatchedwa mabawuti wamba

Kuyang'ana zomwe zili mu fasteners

1. Mawonekedwe a miyeso: ulusi wa go/no go gauge, roughness pamwamba, miyeso yosiyanasiyana monga mainchesi akulu, phula, m'mimba mwake yaying'ono, ngodya ya mbiri, phula, etc.

2. Kuyesa kwamakina: kuyesa kwamphamvu, kuyesa kwamphamvu, kuyesa kulimba, kuyesanso kutenthetsa, kuyesa kwamphamvu, kuyesa kwa wedge, kuyesa kukameta ubweya, kuyesa kutopa, kutsekeka, torque coefficient, kulimbitsa mphamvu ya axial, friction coefficient, anti slip coefficient, screwability test, elasticity gasket, toughness test, hydrogen embrittlement test, etc.

3. Chemical zikuchokera kusanthula: fastener mankhwala zikuchokera kusanthula, fastener zitsulo chuma kalasi chizindikiritso, etc.

4. Metallographic analysis: microstructure, kuya kwa decarburization wosanjikiza, kuya kwa carburization wosanjikiza, mlingo wa kukula kwa tirigu, zophatikizidwa, macrostructure, etc.

5. Kusanthula kulephera: kusanthula ming'alu, kusanthula kwa fracture, kusanthula kwa fracture, etc.

6. Kuyesa kukana kwa dzimbiri: mayeso osalowerera amchere amchere (NSS), kuyesa kwa acetate spray (AASS), kuyesa kwa acetate spray (CASS)