Ke kaʻina hana o ka paipu kila seamless

Iecaianoaaiiuo o kiʻekiʻe-ikaika alloy kila paipu
Hoʻokaʻawale ʻia ke ʻano hana o ka paipu kila liʻiliʻi i ke ʻano cross-rolling (Mennesmann method) a me ke ʻano extrusion.ʻO ke ʻano o ka ʻōwili keʻa (Mennesmann method) ʻo ia ka hoʻoheheʻe mua ʻana i ka pahu paʻa me kahi ʻōwili keʻa, a laila hoʻolōʻihi ʻia me ka wili wili.He wikiwiki wikiwiki kēia ʻano hana, akā koi ʻia ka machinability kiʻekiʻe o ka pahu blank, a he mea kūpono ia no ka hana ʻana i ke kila kalapona a me nā paipu kila haʻahaʻa.

ʻO ke ʻano o ka extrusion, ʻo ia ka hoʻoheheʻe ʻana i ka paipu blank a i ʻole ka ingot me kahi mīkini ʻoki, a laila e hoʻokuʻu iā ia i loko o kahi paipu kila me kahi extruder.ʻOi aku ka maikaʻi o kēia ʻano ma mua o ke ʻano skew rolling a kūpono i ka hana ʻana i nā paipu kila kila ikaika.

ʻO ke ʻano o ka ʻōwili skew a me ke ʻano extrusion e hoʻomaʻamaʻa mua i ka paipu blank a i ʻole ingot, a ua kapa ʻia ka paipu kila i hana ʻia he paipu wela.ʻO nā paipu kila i hana ʻia e nā ʻano hana wela hiki ke hana anu i kekahi manawa e like me ka mea e pono ai.

ʻElua mau ʻano o ka hana anu: ʻo ke ʻano kaha kiʻi anu, ʻo ia ke huki ʻana i ka paipu kila ma ke kiʻi kiʻi i mea lahilahi a hoʻolōʻihi i ka paipu kila;
ʻO ke ala ʻē aʻe, ʻo ke ʻano ʻōwili anuanu, ʻo ia ke ʻano o ka hoʻohana ʻana i ka wili wela i haku ʻia e nā Mennesmann Brothers i ka hana anu.ʻO ka hana anuanu o ka paipu kila ʻole hiki ke hoʻomaikaʻi i ka pololei o ka dimensional a me ka hoʻopau ʻana i ka hoʻopau ʻana o ka paipu kila, a hoʻomaikaʻi i nā waiwai mechanical o ka mea.

Ke kaʻina hana o ka paipu kila maʻemaʻe (hot-rolled steel pipe)
Hoʻopau nui ʻia ka seamlessness o ka paipu kila e ka hoʻohaʻahaʻa haʻahaʻa, a ʻo ke kaʻina hana hoʻohaʻahaʻa haʻahaʻa ʻo ia ke kaʻina o ka ʻōwili mau ʻana o ka hollow base metala me ka ʻole o ka mandrel.Ma lalo o ke ʻano o ka hōʻoia ʻana i ka maikaʻi kuʻi ʻana o ka paipu makua, ʻo ke kaʻina hana hoʻohaʻahaʻa hoʻohaʻahaʻa i ka paipu hoʻoheheʻe ʻia e wela i ka paipu welded holoʻokoʻa a ʻoi aku ma mua o 950 degere Celsius, a laila ʻōwili iā ia i loko o nā anawaena o waho a me nā paia e kahi mea hoʻohaʻahaʻa haʻahaʻa. ka huina o 24 kaʻa o ka hoʻohaʻahaʻa haʻahaʻa).No nā paipu mānoanoa i hoʻopau ʻia, ʻokoʻa nā paipu kila ʻōwili wela i hana ʻia e kēia kaʻina hana mai nā paipu welded kiʻekiʻe maʻamau.ʻO ka lua o ka hoʻohaʻahaʻa hoʻohaʻahaʻa kiʻekiʻe a me ka mana maʻalahi e ʻoi aku ka pololei o ka nui o ka paipu kila (ʻoi aku ka pololei o ka pōʻai a me ka mānoanoa o ka paia o ke kino paipu) ʻoi aku ka maikaʻi ma mua o nā paipu seamless like.