1. E koho e like me ka tap tolerance zone
Hoʻopaʻa ʻia nā paʻi mīkini home me ke code o ka ʻāpana hoʻomanawanui o ke anawaena pitch: H1, H2, a me H3 e hōʻike ana i nā kūlana like ʻole o ka ʻāpana hoʻomanawanui, akā like ka waiwai hoʻomanawanui. ʻO ke code tolerance zone o nā paʻi lima he H4, ʻoi aku ka maikaʻi o ka waiwai hoʻomanawanui, ka pitch a me ke kihi o ka mīkini, a ʻaʻole maikaʻi ka mea, ka mālama wela a me ke kaʻina hana e like me ka mīkini mīkini.
ʻAʻole hiki ke kaha ʻia ka H4 e like me ka mea e pono ai. ʻO nā māka ʻāpana ʻāpana hoʻomanawanui i loko e hiki ke hana ʻia e ka tap pitch tolerance zone penei: Ua pili ke code zone tolerance tap i nā māka pae hoʻomanawanui i loko o ka pae H1 4H, 5H; H2 5G, 6H; H3 6G, 7H, 7G; H4 6H. ISO2 6H; ISO3 6G (ua like ke kūlana honua ISO1-3 me ka H1-3 maʻamau o ke aupuni), no laila, ua hoʻopaʻa ʻia ke code tolerance zone a me ka ʻāpana hoʻomanawanui milo i loko.
Ke koho ʻana i ka maʻamau o ka milo Aia i kēia manawa ʻekolu maʻamau maʻamau no nā milo maʻamau: metric, imperial, a me ka hui pū ʻana (ʻike ʻia ʻo ʻAmelika). ʻO ka ʻōnaehana metric he wili me ka huina niho niho o 60 degere ma ka millimeters.
2. E koho e like me ke ʻano o ka pā
ʻO nā mea a mākou e hoʻohana pinepine ai, ʻo ia: nā paipu ʻohe pololei, nā ʻōpeʻa ʻōniʻoniʻo, nā paipu kiko spiral, nā paipu extrusion, kēlā me kēia me kona pono ponoʻī.
Loaʻa i nā paipu ohe pololei ka versatility ikaika loa, ma loko o ka puka a i ʻole ka puka ʻole, hiki ke hana ʻia ka metala non-ferrous a i ʻole ka ferrous metala, a ʻo ke kumukūʻai ka mea liʻiliʻi loa. Eia naʻe, ʻilihune ka pili, hiki ke hana i nā mea a pau, ʻaʻohe mea maikaʻi loa. Hiki i ka ʻāpana cone ʻoki ke loaʻa nā niho 2, 4, a me 6. Hoʻohana ʻia ka cone pōkole no nā puka ʻole, a hoʻohana ʻia ka cone lōʻihi no nā lua. I ka lōʻihi o ka hohonu o ka lua lalo, pono e lōʻihi ka lōʻihi o ka ʻoki cone, i nui aʻe nā niho e kaʻana like i ka ukana ʻoki a ʻoi aku ka lōʻihi o ke ola lawelawe.
ʻOi aku ka maikaʻi o nā pā ohe ʻōniʻoniʻo no ka hana ʻana i nā kaula puka ʻole, a hoʻokuʻu ʻia nā ʻāpana i hope i ka wā e hana ai. Ma muli o ke kihi helix, e hoʻonui ʻia ka ʻoki ʻoki ʻoki ʻana o ka pā me ka piʻi ʻana o ke kihi helix. Hōʻike ka ʻike iā mākou: No ka hana ʻana i nā metala ferrous, ʻoi aku ka liʻiliʻi o ke kihi helix, ma kahi o 30 degere, e hōʻoia i ka ikaika o nā niho spiral. No ka hana ʻana i nā metala non-ferrous, ʻoi aku ka nui o ke kihi helix, hiki ke kokoke i 45 degere, a ʻoi aku ka ʻoi o ka ʻoki.
Hoʻokuʻu ʻia ka chip i mua i ka wā e hana ʻia ai ke kaula e ka pihi kiko. ʻOi aku ka nui o kāna hoʻolālā nui, ʻoi aku ka maikaʻi o ka ikaika, a hiki iā ia ke pale aku i nā ʻokiʻoki nui. He maikaʻi loa ka hopena o ka hana ʻana i nā metala non-ferrous, ke kila kila, a me nā metala ferrous, a pono e hoʻohana pono ʻia nā ʻōpala kikoo no nā kaula puka-waha.
ʻOi aku ka maikaʻi o nā paipu extrusion no ka hana ʻana i nā metala non-ferrous. ʻOkoʻa i ka loina hana o nā ʻoki ʻoki ma luna, hoʻopau ia i ka metala e hoʻoheheʻe ʻia a hana i nā kaula kūloko. Hoʻomau ka extruded thread metala loloa, me ke kiʻekiʻe tensile a me ka shear ikaika, a me ka maikai roughness ili. Eia naʻe, ʻoi aku ka kiʻekiʻe o nā koi no ka lua lalo o ka extrusion tap: nui loa, a liʻiliʻi ka nui o ka metala kumu, e hopena i loko. Inā liʻiliʻi loa, ʻaʻohe wahi e hele ai ka metala i hoʻopaʻa ʻia a i hoʻokuʻu ʻia, e haki ai ka paipu.
Ka manawa hoʻouna: Dec-13-2021
