ʻO ka paipu lauwili ʻolekaʻina hana hoʻoheheʻe wela

Thermal hana manufacturing kaʻina hana, me ka nui-anawaena seamless wela-wili a me ka wela extrusion o na ano elua, ka mua ua nui hoʻohana 'ia i ka hana o composite paipu ami, e pili ana seamless composite paipu hana.

ʻO ke kaʻa ʻana he ʻano hana kuʻuna no ka hoʻomākaukau ʻana i ka paipu kila ʻole ke anawaena.ʻO ka ʻōwili wela i loko o ka waiwai ke kaomi kuʻi, inā nui ka deformation, ʻo ke kaomi i hana ʻia e ka ʻōwili metala e hōʻino i ka ʻili o ke kiʻi oxide, ka ʻili atomika e pili ana, i hui pū ʻia nā ʻaoʻao ʻelua.ʻO nā hemahema o ka holo ʻana:

ʻO nā pōmaikaʻi o ka ʻōwili: kiʻekiʻe huahana, maikaʻi maikaʻi, haʻahaʻa kumu kūʻai, a hiki ke mālama i ka nui o ka lole a me nā waimaka o nā mea metala, a no laila ke hoʻohana nui ʻia nei o ka ʻenehana hana ʻenehana.ʻO ka ʻōwili pepa i hui pū ʻia me 90% o ka nui o ka pā i hui ʻia, a hoʻohana pinepine ʻia i ka mānoanoa o ka pā paipu ma lalo o 32mm o ka hana.

ʻO nā hemahema o ka ʻōwili: hoʻokahi manawa hoʻolimalima, akā ʻaʻole hiki ke hoʻokō ʻia ka nui o nā mea hui pū me ka paʻakikī o ka ʻōwili.I kēia manawa ʻo ka ʻenehana nui loa i hoʻohana ʻia no ka hoʻohana ʻana i ke kila wili, ke kila kila kila i hui pū ʻia i nā hui paipu.

Hoʻohana maʻamau ʻia ka extrusion wela no ka paipu bi-metal, i kapa ʻia he extrusion composite (coextrude).ʻO ka Coextrusion ke ala maikaʻi loa no ka hana ʻana i ke kila kila a me ke kiʻekiʻe nickel alloy seamless composite tube, Japan Steel i hana ʻia e kēia ʻano 8in (203.2mm) ma lalo o ka paipu hui bimetallic.ʻO ia ka mea i hoʻopaʻa ʻia me ʻelua a ʻoi aku ka nui o ka metala blank i hoʻomehana ʻia a hiki i 1200.℃, a laila e hoʻokuʻu ʻia ma kahi ākea annular i hana ʻia e ka mold a me ka mandrel.Ke hoʻemi ʻia ka ʻaoʻao billet extrusion i 10: 1, ʻo ke kaomi extrusion kiʻekiʻe a me ka mahana ma ka pākuʻi i hana i ka hopena kuʻi ʻana o ka "pressure welding", e hoʻoikaika i ka hoʻolaha wikiwiki a ākea o ka interface ma waena o ka hui ʻana e hoʻokō ai i ka pilina paʻa metallurgical.Ma mua o ka extrusion composite tube manufacturing hana, aia ekolu: ka forging billet piercing a hoonuiia e ka wela extrusion loaa;pololei centrifugal milo hoolei;nā ʻāpana pauda kūpaʻa i ka corrosion.ʻElua mau mea metala i hoʻohana ʻia i loko a ma waho o ka pauka, i kapa ʻia ʻo "NUVAL" ʻenehana, hiki ke hoʻomohala i nā ʻāpana hou, akā kiʻekiʻe ke kumukūʻai no ka hoʻomākaukau ʻana i ka pauka.ʻO nā hemahema coextrusion:

Nā pōmaikaʻi o ka extrusion wela : Ua hoʻopaʻa ʻia ke kikowaena metala;ʻO nā ikaika i komo i loko o ke kaʻina extrusion he koʻikoʻi loa ia, ua kūpono loa ia i ka hana wela, ka hoʻoili ʻana o nā metala kiʻekiʻe.

ʻO nā hemahema o ka extrusion wela: E like me ka mea i hoʻoholo ʻia e ka extrusion kaʻina i hui pū ʻia me kahi pōkole diffusion interface mau mea, ma muli o ke alo o nā kiʻi ʻoniʻoni i hoʻopilikia ʻia, a hiki i kēia manawa i kaupalena ʻia i ka extrusion composite composite carbon steel, stainless steel a me nā nickel alloys kiʻekiʻe ma waena. .Ua ʻike ʻia he kūʻē liʻiliʻi liʻiliʻi o ka extrusion wela, e ʻae ana i kahi deformation nui o kēlā me kēia, e hopena i ka ʻili o ka ʻili kiʻekiʻe, a no laila e ʻoi aku ke anuanu o ka ʻōwili ʻana i ka extrusion wela (a kiʻi paha) o ke ʻano o ka hana ʻana i kahi paipu hui. .