Shanduko Nzira Pakati peMetric uye Yakabatana Inch Threads

Rwonzi chiumbwa chinotenderera chinoshandiswa kubatanidza mabhaudhi nenzungu. Munyika dzakasiyana uye matunhu, shinda dzemhando dzakasiyana dzinoshandiswa. Imperial uye metric ndiwo maviri akajairika zviyero.
Muchiyero cheBritish, iyo yakajairika tambo yakatarwa ndeye UNC uye UNF. UNC ndiyo chidimbu cheUnified National Coarse, izvo zvinoreva tambo yakabatana yenyika; UNF ndiyo chidimbu cheUnified National Fine, izvo zvinoreva tambo yakabatana yenyika. Semuyenzaniso, Unc 1/4-20 zvinoreva shinda yakabatana yenyika ine mutsindo we 20 TPI (Threads pa inch) uye dhayamita ye 1/4 inch.

Inch system yakabatana tambo dzinoshandiswa zvakanyanya munyika inch system. Mhando yeshinda iyi yakakamurwa kuita nhatu dzakatevedzana: coarse thread series UNC, yakanaka thread series UNF, yakawedzera tambo yakanaka yakatevedzana UNFF, pamwe neyakagadziriswa pitch series UN.

Kumaka nzira: Thread dhayamita-nhamba yeshinda pa inch; Series kodhi-yakarurama mwero

Muenzaniso: Makasha mazino akatevedzana 3/8-16 UNC-2A

Fine tooth series 3/8-24 Unf-2a

Extra yakanaka mazino akatevedzana 3/8-32 UNFF-2A

Yakagadziriswa pitch series 3/8—20 UN—2A

Dijiti yekutanga 3/8 inomiririra dhayamita rekunze reshinda mumainch. Kushandura kuita metric unit mm, wedzerai 25.4, ndizvo, 3/8×25.4=9.525mm; nhamba yechipiri neyechitatu 16, 24, 32, uye 20 are Nhamba yemazino pa inch (nhamba mazino pakureba 25.4mm); macode ezvinyorwa mushure medijiti yechitatu, Unc, Unf, UNFF, UYE, ndiwo makodhi makodhi, uye manhamba maviri ekupedzisira, 2A, ndiwo chiyero chekururama.

Zvinotarwa mune yakabatana shinda chiyero kuti saizi yezita inogona kuve nemapinji akasiyana. Semuyenzaniso, 1/2 ane 13 mazino, 16 mazino, 20 mazino, uye 32 mazino. Mupimo unotaura izvozvo 13 mazino mazino akakasharara uye 20 mazino mazino akanaka. 28 mazino ndiwo mazino akanyanya kunaka; 16 meno uye 32 mazino ose anodaidzwa kuti constant pitch, izvo zvisina kusiyana nemazino akakasharara nemazino matete.