ʻO ke kaula NPT ka pae maʻamau ʻAmelika 60 ° taper pipe thread.ʻO ke kumu no ka helu ʻana i ke kaulahao o ka milo: ʻO ke kumu no ke anawaena waena o ka milo: D2=d2=D-0.8XPʻO ke ʻano no ke ala o ka milo: D1=d1=D-1.6XP ʻO ke ʻano kūpono o ka milo. mahele ʻia i cone-post fit a i ʻole cone-cone fit.ʻO ka lōʻihi o ke kaula L ka huina o ka lōʻihi maoli o ka liʻiliʻi loa o ka lōʻihi kūpono ʻaʻole i emi iho ma mua o kona mamao kuhikuhi + alana hui. ka maka hope o ke kaula a i ʻole nā wahi ʻike maka, e like me: 4-8NPT-LHHoʻopau ʻia ka sila ʻana o kēia kaula e ka mea hoʻopaʻa i waena o nā kaula. e lanakila ka hale ho'ā'o 'oihana.
Ka nānā ʻana i ke kaula TBG
ʻO ke kaula TBG kahi kaula pili paipu ʻaila, e like me ka LP oil pipeline thread, kona maʻamau: API-5B, ua māhele ʻia ke kaula TBG i ka mānoanoa (EUE EU) a ʻaʻole mānoanoa (NUE NU) ʻelua ʻano, ʻo ka Angle ʻo 60 °. ʻO ka liʻiliʻi he 1:16.ʻO nā kikoʻī o ke kaula unthickened penei: 1.05TBG;1.315 TBG;1.660 TBG;1.900 TBG;22/8TBG;27/8TBG;31/2TBG;41/2TBG.UPTBG mānoanoa (EUE)TBG thread, 8 niho i kēlā me kēia manawa, nā kikoʻī: 1.05UPTBG 1.05UPTBG;1.315 UPTBG;1.660UP TBG;1.900UPTBG;2 2/8UPTBG;27/8UPTBG;31/2UPTBG;4UPTBG.41/2UPTBG
.A: Ka hoʻomākaukau ʻana ma mua o ka nānā ʻana: 1:16 anana māmā, anana apo apo.60° anana niho niho.CB/T 12726-2002 (S) .2002
Ka nānā ʻana i ka pae ʻAmelika:
(1) He 60° ka huina niho o ka milo ʻAmelika, i māhele ʻia i: UNS koʻikoʻi, UNF maikaʻi, UNEF maikaʻi loa, ke kaula koʻikoʻi UNC honua.Hōʻike ʻia ka pitch ma ka helu o nā niho ma 25.4mm i kēlā me kēia iniha.ʻO nā ʻano kaha e like me:7/8-9UNC.2B. Ua māhele ʻia ka pae o ka milo ʻAmelika i A a me B ʻelua ʻano, A pili wale ke kaula i waho, ua māhele ʻia i 1A;2A;3A, ua hōʻike ʻia ka māka o ka milo i loko e ka B, i puʻunaue pū ʻia i 1B;2B;3B.Loaʻa iā 1A1B ka pae kiʻekiʻe loa a hoʻohana ʻia no ka US ordnance a i ʻole nā hana kūikawā ʻē aʻe.He kūpono ka 2A2B no nā kaula pili maʻamau a hiki ke uhi ʻia ma ka ʻili o ke kaula.ʻO ke anawaena liʻiliʻi;Hiki ke hoʻololi ʻia i nā waiwai metric M.A laila e like me ka metric M thread inspection method e ho'āʻo ai i ke anawaena nui o ke kaula ʻAmelika;ʻO ke anawaena liʻiliʻi;ʻO ke anawaena waena a i ʻole me nā kikoʻī like ʻole o ka puʻupuʻu puʻupuʻu puʻupuʻu piha a me ke ana pani e nānā ai;E nānā ʻia ke koena e like me nā ʻano ʻē aʻe a me ke kūlana kūlana a me nā ana i ʻōlelo ʻia ma ke kaʻina hana. mm.ʻO kona pitch: 2.822mm, a ʻo kona anawaena ʻo 22.225(0.6495 x 2.822) = 20.391 mm. Hoʻopau ʻia ka huahana thread American: Pono e hana ʻia ka ʻike milo huahana ma ka ʻili o ka huahana ma mua o ka mālama ʻana.
LP aila paipu kaula
inspectionLP aila paipu kaula;E like me ka NPT vertebral pipe thread me ka milo contour Angle o 60° a me ka taper o 1:16.ʻO ka ʻokoʻa ma waena o ia a me NPT vertebral canal thread ʻo ia ke kiʻekiʻe o ke kaula LP o ka kikoʻī like ʻole ma mua o ke kaula NPT, ʻo ke kiʻekiʻe o ke kaula LP he 0.073P, ʻoiai ke kiʻekiʻe o ke kaula NPT he 0.033P, ʻo ia hoʻi, ka piko. ʻoi aku ka palahalaha o ke kaula LP ma mua o ke kaula NPT.A ua paʻa ka LP thread, hiki ke pale pono i ke kaula mai ka pōʻino, ua hoʻopaʻa ʻia ke sila LP thread e ka laina niho, no laila ʻoi aku ka kiʻekiʻe o ka hana ʻana ma mua o nā koi NPT thread, a ʻoi aku ka lōʻihi o ke kaula LP ma mua o ka NPT. , ka mea e hoʻonui ai i ka paʻakikī o ka hana ʻana. Ka nānā ʻana i ke kaula LP:LP;ʻO ke ʻano o ka nānā ʻana i nā kaula e like me ka NPT threads.Pono 1:16 anana māmā, anana apo apo kaula.ʻAi niho, luna niho kiʻekiʻe, a pela aku.Hiki ke nānā ʻia kēia mai ka API-5B thread standard.I ka wā o ka nānā ʻana a me ka hoʻāʻo ʻana, pono e hoʻokō ʻia ka nui kūpono e like me ke kaʻina hana kiʻi a me ka nui i koi ʻia e ka ʻaelike.Pono e hōʻailona ʻia nā huahana kūpono i ka kikoʻī kikoʻī maka.
Ka manawa hoʻouna: Sep-07-2023