Waowa Steel Seamless Steel Tube - Roopu Royal

1. Te okeoke wera (te tangohanga paipa maitai kore) : ngongo porowhita → whakawera → perforating → toru-te teitei o te hurihanga hauroki, te huri haere tonu, te tangohanga ranei → te tihorea → te rahi (te whakaiti ranei) → te whakamahana → te whakamahana → te whakamatautau hydrostatic (te tirotiro ranei) → te tohu → rokiroki
Ko te rauemi mata o te ngongo okeoke ko te pire ngongo porowhita, ka tapahia te kukuna ngongo porowhita ka tukatukahia e te miihini tapahi me te tipu o te 1 mita te roa, ka tukuna ki te oumu ma te whakamahana whitiki kawe. Ka tukuna te pire ki roto i te oumu ka wera ki te 1200 nga nekehanga Celsius. Ko te wahie he hauwai, he acetylene ranei. Ko te mana o te pāmahana i roto i te oumu te raru nui. Whai muri i te putanga mai o te pire ngongo porowhita, ka pokaia e te whiu pehanga. Ko te tikanga, ko te perforator tino noa ko te perforator pukapuka koeko. Ko tenei ahua o te perforator he tino pai te whakaputa, he pai te kounga o te hua, he nui te diameter perforating me te kakahu i nga momo rino. Whai muri i te kowhatu, ka hurihia te pire ngongo porohita e toru hauroki teitei, te huri haere tonu, te tangohanga ranei. I muri i te tangohanga, me tango te paipa mo te rahi. Ka huri te caliper ki roto i te embryo rino na roto i te wiri koeko i te tere tere ki te wero i nga rua me te hanga paipa maitai. Ko te diameter o roto o te putorino maitai ka whakatauhia e te roa o waho o te moka drill caliper. I muri i te rahinga o te paipa rino, ka uru ki roto i te pourewa whakamatao ka whakamataohia ma te rehu wai. I muri i te whakamatao i te paipa maitai, ka whakatikaia.
2. Pupa maitai tuitui (whakatakahia) matao: ngongo porowhita → whakawera → perforation → pane → annealing → pickling → hinu (whakakikorua parahi) → tuhi matao-maha (rere makariri) → ngongo pātea → maimoatanga wera → whakatika → whakamātautau hydrostatic (tirotiro) → tohu → rokiroki.
Ko te tikanga okeoke o te tuhi matao (te huri) paipa maitai kore he uaua atu i tera o te putorino maitai korekore. Ko nga waahanga tuatahi e toru o ta raatau mahi whakaputa he rite tonu. Ko te rereketanga mai i te taahiraa tuawha, ngongo porowhita i muri i te werohanga, ki te mahunga, te whakaene. I muri i te whakaene, ka whakamahia he wai waikawa motuhake mo te tiki. I muri i te tunu, ka tukuna te hinu. Ka whai muri i te maimoatanga wera motuhake o te ngongo rebillet i muri i te maha o nga tuhi matao (te hurihuri makariri). I muri i te maimoatanga wera, ka whakatikahia.