Plum blossom ine column self tapping screw

Pamusoro pekusiyana kwezviyero zvakakosha senge musoro kusvika kumucheto uye ukobvu hwemusoro, mutsauko wakanyanya kukosha wezviyero musiyano wezvikamu zvakarukwa. Tambo dzeGB, DIN, JIS, nezvimwewo zvinoyerwa mumamirimita (MM) uye akaunganidzwa anodaidzwa kunzi metric threads. Shinda dzakaita se ANSI, ASME, zvichingodaro, dzinoyerwa nemainch, dzinonzi American standard threads. Pamusoro pemametric tambo uye tambo dzeAmerica, kune zvakare BSW yeBritish chiyero, ine tambo dzinoyerwawo mumainch, dzinowanzozivikanwa seWyeth shinda.

Tambo dzemetric dzinopimwa mumamirimita (MM) uye dzine zino repakona ye60 degrees. Dzose shinda dzeAmerica neBritish dzinoyerwa mumainch. Iro zino rekona yeshinda yeAmerica zvakare 60 madhigirii, nepo zino remuromo angle yeBritish shinda i55 madhigirii. Nekuda kwemayuniti akasiyana ekuyerwa, nzira dzekumiririra dzeshinda dzakasiyana hadzina kufanana. Semuenzaniso, M16-2X60 inomiririra metric tambo. Zvaanoreva chaizvo ndezvekuti dhayamita yezita rescrew i16MM, pitch i2MM, uye kureba i60MM. Semuyenzaniso, 1/4-20X3/4 inomiririra shinda yeBritish, uye zvaanoreva ndezvokuti dhayamita rezita resiruu i1/4 inch (inchi imwe = 25.4MM), ine mazino makumi maviri painji imwe uye kureba kwe3/4 inch. Mukuwedzera, kana tichitaura nezveAmerican screws, UNC neUNF zvinowanzowedzerwa mushure mekumiririra British screws kusiyanisa pakati peAmerican mazino akaoma uye American mazino akanaka.

Mubhizinesi redu remazuva ese rekutengesa mudzimba, zviyero zvatinowanzo sangana nazvo ndeye GB (National Standard) uye DIN (German Standard).
Panyaya yezvigadzirwa zvisiri zvinonhuhwirira, zvinotevera zviyero zvinonyanya kusangana nazvo: GB30; GB5783; GB5782; GB62; GB6170; GB818; GB819; GB845; GB846; GB70; DIN912; DIN933; DIN931, etc. Parizvino, GB30 (yekare yenyika chiyero) yakatsiviwa neGB5783 (itsva yenyika chiyero) mubhuku rekare. GB52 (yechinyakare yenyika chiyero) yakatsiviwa neGB6170 (nyowani yenyika chiyero) mubhuku rakajairwa.

Muna 1986, nyika yedu yakagadzira chiyero chitsva chezvakajairwa zvikamu, zvinowanzozivikanwa seyero nyowani mubhizinesi. Anonyanya kushandiswa ndiwo GB5780, GB5781, GB5782, GB5783, uye GB5784. GB5780 ihexagonal musoro gobvu tsvimbo hafu zino sikuruu ine chaiyo nhanho yeC, iyo inogona kutsiviwa neGB5782 (GB5782 ine hexagonal musoro mukobvu tsvimbo yakazara zino sikururu ine nhanho chaiyo yeA uye B). GB5781 ihexagonal musoro izere mazino sikuruu ine nhanho chaiyo yeC. GB5783 inogona kushandiswa sechitsividzo (GB5783 is a hexagonal head full tooth screw with accuracy levels of A and B). GB5784 ikona ine hexagonal netsvimbo nhete nehafu zino.

Musiyano uripo pakati peiyo nyowani nyowani neyekare label ndeyekuti iyo M8, M10, M12, M14, uye M22 yakatevedzana zvigadzirwa zvine misiyano muhupamhi hwemapendero. Kunze kwezvitsva zveM22 zvakatevedzana zvigadzirwa, mipendero yezvitsva zvelabel zvigadzirwa M8, M10, M12, uye M14 idiki 1MM pane iyo yekare label. Iwo ari 13mm, 16mm, 18mm, uye 21mm zvakateerana. Nekudaro, kune iyo mitsva yeM22 yakatevedzana zvigadzirwa, iyo yakatarisana neiyo label nyowani inonyatso 2MM yakakura kupfuura yekare label, saka kutarisisa kwakakosha kunofanirwa kubhadharwa. Nokuda kwehupamhi hwemusoro, pane musiyano muduku pakati pezviyero zvitsva uye zvekare, izvo zvinogona kushandiswa zvakasiyana mumamiriro ezvinhu apo zvinodiwa hazvisi zvakanyanya.

Musiyano uripo pakati peiyo chiyero chitsva uye chiyero cheGerman chiri mune zvigadzirwa zveM10, M12, M14, uye M22, izvo zvinosiyana muhupamhi hwemapendero. Musoro wekumucheto mutsva weM10, M12, M14 unofanirwa kunge uri 1MM mudiki pane chiyero cheGerman. Chigadzirwa chitsva cheM22 chine musoro kumucheto wakafara iyo 2MM yakafara kupfuura yakatemwa kumucheto upamhi, uye zvimwe zvigadzirwa zvese zvinogona kushandiswa zvakasiyana.

Kune hexagonal nzungu, anowanzo shandiswa zviyero anosanganisira GB52, GB6170, GB6172, uye DIN934. Musiyano mukuru pakati pawo ndewekuti GB6170 yakakora kupfuura GB52, GB6172, uye DIN934, inowanzozivikanwa senzungu dzakakora. Mukuwedzera, pane musiyano mumapendero. Mune M8 nzungu dzakatevedzana, mipendero yeDIN934, GB6170, uye GB6172 ndeye 13mm, inova 1MM idiki pane iyo 14mm mupendero weGB52. Kune M10 nzungu, mipendero yeDIN934 uye GB52 i17mm, inova 1MM yakakura kupfuura mipendero yeGB6170 uye GB6172. Kune M12 nzungu, mipendero yeDIN934 uye GB52 i19mm, inova 1MM yakakura kupfuura iyo 18mm mupendero weGB6170 uye GB6172. Kune M14 nzungu, iyo yakatarisana nemupendero weDIN934 uye GB52 ndeye 22mm, inova 1MM yakakura kupfuura yakatarisana nemupendero weGB6170 uye GB6172, iri 21mm. Pamusoro pezvo, iyo M22 nati ine 32MM yakatarisana nemupendero kuDIN934 uye GB52, iri 2MM idiki pane iyo 34MM yakatarisana nemupendero kusvika GB6170 uye GB6172. GB6170 uye GB6172 vane hupamhi hwakafanana kumucheto kunze kwehukobvu hwavo hwakasiyana. Zvimwe zvese zvinotsanangurwa zvinogona kushandiswa zvakasiyana pasina kufunga ukobvu.