Wahi a ke ʻano hana, hiki ke hoʻokaʻawale ʻia nā paipu kila i ʻelua mau ʻāpana: nā paipu kila ʻole a me nā paipu kila welded. I waena o lākou, ʻo nā paipu kila ERW ke ʻano nui o nā paipu kila welded. I kēia lā, ke kamaʻilio nui nei mākou e pili ana i ʻelua ʻano paipu kila i hoʻohana ʻia e like me ka hoʻopaʻa ʻana i nā mea waiwai: nā paipu pahu hoʻopaʻa ʻole a me nā paipu pahu ERW.
ʻO ka paipu hoʻoheheʻe ʻole - ka paipu pahu i hana ʻia me ka paipu kila ʻole; ʻO ka paipu kila maʻemaʻe e pili ana i ka paipu kila i hanaʻia e nāʻanoʻehā o ka'ōwili wela, ka'ōwili anu, ke kiʻi wela a me ke kiʻi anu. ʻAʻohe welds o ke kino paipu.
Kino ERW - ERW (Electric Resistant Weld) paipu kila i hana ʻia me ka paipu welded uila e pili ana i ka paipu wili lōʻihi lōʻihi i hana ʻia e ka wili kūwaho kiʻekiʻe. Ua hana ʻia nā ʻāpana kila makaʻala (coils) no nā paipu uila-welded mai ke kila micro-alloy haʻahaʻa i ʻōwili ʻia e TMCP (ka hana hoʻomalu thermomechanical).
1. OD tolerance seamless kila paipu: me ka hoʻohana 'ana i ka wela-rowili hana kaʻina hana, sizing ua pau ma kahi o 8000°C. ʻO ka hoʻohui ʻana o ka mea maka, nā kūlana hoʻoluʻu, a me ke ʻano ʻoluʻolu o ka ʻōwili i ka mana nui i kona anawaena o waho, no laila paʻakikī ke hoʻomalu pono i ka anawaena o waho, a nui ka laulā fluctuation. ʻO ka paipu kila ERW: ua hoʻokumu ʻia e ke kulou anuanu, a ua hoʻemi ʻia kona anawaena e 0.6%. ʻO ka mahana kaʻina hana maʻamau maʻamau i ka lumi wela, no laila e hoʻomalu pono ʻia ke anawaena o waho, a he liʻiliʻi ke ʻano o ka fluctuation, kahi kūpono i ka hoʻopau ʻana i nā ʻili ʻeleʻele buckles;
2. Seamless kila paipu me ka paia mānoanoa tolerance: Ua hana ia ma ka perforating poepoe kila, a me ka paia mānoanoa deviation nui. Hiki i ka ʻōwili wela ma hope ke hoʻopau i ka like ʻole o ka mānoanoa o ka pā, akā hiki i nā mīkini hou loa ke hoʻoponopono iā ia i loko o ± 5 ~ 10%t. ʻO ka paipu kila ERW: I ka hoʻohana ʻana i ka wili wela wela e like me ka mea maka, hiki ke hoʻomalu ʻia ka mānoanoa o ka ʻōwili wela hou i loko o 0.05mm.
3. ʻAʻole hiki ke hoʻopau ʻia nā hemahema i ka ʻili o waho o ka mea hana i hoʻohana ʻia no ke ʻano o ka paipu kila maʻemaʻe i ke kaʻina hana ʻōwili wela, akā hiki ke hoʻomaʻamaʻa wale ʻia ma hope o ka pau ʻana o ka huahana i hoʻopau ʻia, ʻo ka hahau helical i waiho ʻia ma hope o ke kuʻi ʻana hiki ke hoʻopau wale ʻia i ka hana o ka hoʻemi ʻana i nā paia. Hana ʻia ka paipu kila ERW mai ka ʻōwili wela e like me ka mea maka. ʻO ka maikaʻi o ka ili o ka wili e like me ka maikaʻi o ka ili o ka paipu kila ERW. He maʻalahi ka mālama ʻana i ka maikaʻi o ka ʻili o nā wili wela wela a he ʻano kiʻekiʻe. No laila, ʻoi aku ka maikaʻi o ka ʻili o ka paipu kila ERW ma mua o ka paipu kila ʻole.
4. Oval seamless kila paipu: hoʻohana wela kaʻina hana. ʻO ka hoʻokumu ʻana i nā mea maka o ka paipu kila, nā kūlana hoʻoluʻu a me ke kūlana hoʻoluʻu o ka ʻōwili i ka mana nui i kona anawaena o waho, no laila paʻakikī ke hoʻomalu pono i ka anawaena o waho, a nui ka laulā fluctuation. ʻO ka paipu kila ERW: i hana ʻia e ke kuʻi anu, ke kāohi pono ʻia ke anawaena o waho, a liʻiliʻi ka pae fluctuation.
5. Ho'āʻo Tensile ʻO nā waiwai tensile o ka paipu kila maʻemaʻe a me ka paipu kila ERW e like me nā kūlana API, akā ʻo ka ikaika o ka paipu kila maʻamau ma ka palena kiʻekiʻe, a ʻo ka ductility ma ka palena haʻahaʻa. ʻO ka mea ʻē aʻe, ʻoi aku ka maikaʻi o ka paipu kila ERW, a ʻo ka index plasticity he 33.3% kiʻekiʻe ma mua o ka maʻamau. ʻO ke kumu, ma ke ʻano he mea maka no ka paipu kila ERW, ua hōʻoia ʻia ka hana ʻana o ka coil ʻōwili wela e ka hoʻoheheʻe ʻana i ka micro-alloy, ka hoʻomaʻemaʻe ʻana i waho o ka umu, a me ka hoʻoluʻu ʻana a me ka ʻōwili ʻana; palaki. Kūlike kūpono.
6. ʻO ka mea maka o ka paipu kila ERW he wili wela wela, he kiʻekiʻe kiʻekiʻe loa i ke kaʻina hana ʻōwili, hiki ke hōʻoia i ka hana like o kēlā me kēia ʻāpana o ka coil.
7. Raw material of ERW hot rolled steel coil pipe with grain size adopts wide and manoanoa hoolei billet, the surface fine-grain solidification layer is manoanoa, aohe wahi o columnar crystals, shrinkage porosity a me pores, haku mele he uuku. , a paʻa ka hale; hoʻomalu i ke kaʻina ʻōwili ma hope mai ʻO ka hoʻohana ʻana i ka ʻenehana ʻōwili anuanu e hōʻoiaʻiʻo i ka nui o ka palaoa o ka mea maka.
8. ʻO ka ho'āʻo pale pale o ka paipu kila ERW e pili ana i nāʻano o ka mea maka a me ke kaʻina hana o ka paipu. ʻOi aku ka maikaʻi o ka like ʻana o ka mānoanoa o ka pā a me ka ovality ma mua o nā paipu kila seamless, ʻo ia ke kumu nui i ʻoi aku ka kiʻekiʻe o ka hāʻule ʻana ma mua o nā paipu kila ʻole.
9. Ho'āʻo hopena No ka mea ʻoi aku ka nui o ka paʻakikī o ka mea kumu o ka paipu kila ERW ma mua o ka paipu kila ʻole, ʻo ka paʻakikī o ka weld ke kī i ka paipu kila ERW. Ma ka hoʻomalu ʻana i ka ʻike o nā mea haumia i loko o ka mea maka, ke kiʻekiʻe a me ke kuhikuhi o ka ʻoki ʻoki, ke ʻano o ka ʻaoʻao i kūkulu ʻia, ke kihi welding, ka wikiwiki o ka welding, ka mana hoʻomehana a me ke alapine, ka leo extrusion welding, ka wela a me ka hohonu o ka lōʻihi o ka ea a me nā kaʻina hana ʻē aʻe. Hiki i ka hopena weld ikehu ma mua o 60% o ka metala kumu. Me ka hoʻonui hou aku, hiki i ka ikehu hopena o ka weld ke kokoke i ka ikehu o ka metala kumu, e hōʻoiaʻiʻo ana i ka hana pilikia ʻole.
10. ʻO ka hoʻāʻo pahū ʻO ka hana hoʻāʻo pahū o nā paipu kila ERW ʻoi aku ka kiʻekiʻe ma mua o nā koi maʻamau, ma muli o ke kūlike kiʻekiʻe o ka mānoanoa o ka pā a me ke anawaena o waho o nā paipu kila ERW.