Izindinganiso zei-astm a36 induku enentambomboza amapharamitha amaningi afana nobubanzi obujwayelekile, umthofu nobude. Lapho uklama, kuyadingeka ukukhetha izincazelo ezifanele ngokuya ngezidingo ezithile zohlelo lokusebenza kanye nomthamo womthwalo.
a193 b7 yonke intamboI-a449 yenduku enentambo ububanzi begama:
a449 induku enentambobabe nobubanzi obubanzi bobubanzi obuzisholo, kanye nokucaciswa okujwayelekileumkhiqizo wosayizi wenduku yentambo evamilekukhona 12, 14, 16, 20, 25, 32, 40, 50, 63, 80, 100, 120, njll. Kodwa-ke, kufanele kuqashelwe ukuthi abakhiqizi abaningi ikakhulukazi banamasheya ama-diameter asuka ku-16 kuya ku-50, futhi iningi amanye ama-diameter ayikusasa, okungukuthi, akhiqizwa ngokuvumelana nama-oda, futhi isikhathi sokulethwa ngokuvamile siphakathi kwezinsuku ezingu-30 nezingu-60, okungase kube yizinyanga ezi-2 kuye kwezingu-2.5 zemikhiqizo yaseJapane kanye nezinyanga ezingu-3 kuya kwezi-4 emikhiqizweni yaseYurophu naseMelika. I-diameter yegama ngokuyisisekelo ilingana nomthamo womthwalo, okungukuthi, ubukhulu be-diameter, ubukhulu bomthamo womthwalo. Lapho uklama, imiqondo yomthwalo olinganiselwe oguqukayo nomthwalo olinganiselwe kufanele kubhekiselwe kuwo, lapho umthwalo olinganiselwe oguqukayo ubhekisela kumthwalo we-axial olinganiselwe esimweni esinyakazayo, futhi umthwalo olinganiselwe omile ubhekisela kumthwalo olinganiselwe we-axial esimweni esimile. Ekusetshenzisweni kwangempela, umthwalo olinganiselwe awuwona umthwalo omkhulu. Isilinganiso esincane somthwalo wangempela kumthwalo olinganisiwe, iba yinde impilo yethiyori yesikulufu.
insimbi engagqwali threaded induku Astm Umthofu
eyaziwa nangokuthi iphimbo, ibhekisela ebangeni inathi elihambayo lilandelana ngokuzungezisa ngakunye kwesikulufu.insimbi engagqwali threaded induku umenzi we-astmUkucaciswa okujwayelekile okuholayo kufaka phakathi u-1, 2, 4, 6, 8, 10, 16, 20, 25, 32, 40, njll. Imikhiqizo yamabala yabadobi abancane nabaphakathi ngokuvamile iba ngu-5 no-10 kuphela, kuyilapho imikhondo emikhulu ngokuvamile ikusasa. Ukuhola kuhlobene nesivinini somugqa. Uma isivinini sokufaka singaguquki, ukuhola okukhulu, isivinini siyashesha.
Ubude benduku ye-astm f593
Ubude be-i-astm f593 imikhiqizo yenduku enentambokuhlanganisa imiqondo emibili: ubude obuphelele kanye nobude bentambo. Lapho uklama futhi udweba, ubude obuphelele besikulufu bungaqoqwa cishe ngokuvumelana nemingcele elandelayo: ubude obuphelele besikulufu = i-stroke ephumelelayo + ubude bentongomane + i-margin yokuklama + ubude bokusekela emikhawulweni yomibili (ububanzi obunobubanzi + ukukhiya ububanzi benati + imajini ) + ubude bokuxhuma okokufaka kwamandla (uma kusetshenziswa ukuhlanganisa, cishe kuyingxenye yobude bokuhlanganisa + imajini). Kubaluleke kakhulu ukuqaphela ukuthi uma ubude besikulufu side kakhulu (sikhulu kunamamitha angu-3) noma isici se-aspect ratio sikhulu kakhulu (sikhulu kuno-70), ukwakheka kwaso nokusebenza kungase kudinge ukucatshangelwa okukhethekile.
Isikhathi sokuthumela: Sep-10-2024