Carbon Karfe Tubu maras Karfe - Rukunin Sarauta

1. Hot mirgina (extrusion sumul karfe bututu): zagaye tube blank → dumama → perforating → uku-high diagonal rolling, ci gaba da mirgina ko extrusion → tsiri → girman (ko rage) → sanyaya → mikewa → hydrostatic gwajin (ko dubawa) → marking → ajiya
Danyen abu na bututun da ba shi da sumul shine zagaye bututun billet, ana yanke amfrayo mai zagaye kuma ana sarrafa shi ta hanyar yankan injin tare da girma na kusan mita 1 babu komai, sannan a aika zuwa tanderun ta hanyar dumama bel. Ana ciyar da billet ɗin a cikin tanderun wuta kuma a yi zafi zuwa kusan digiri 1200 na ma'aunin Celsius. Man fetur shine hydrogen ko acetylene. Matsalolin zafin jiki a cikin tanderun shine babbar matsala. Bayan billet ɗin zagaye na zagaye ya fito, ana huɗa shi da naushin matsi. Gabaɗaya, mafi yawan mai yin ɓarna shine mai jujjuyawar juzu'i. Irin wannan perforator yana da ingantaccen samarwa, ingancin samfur mai kyau, manyan diamita na perfoating kuma yana iya sa nau'ikan ƙarfe iri-iri. Bayan huda, billet ɗin zagaye na billet ɗin ana birgima da shi ta hanyar babban diagonal uku, ci gaba da birgima ko extrusion. Bayan extrusion, ya kamata a cire bututu don girman girman. Caliper yana jujjuya cikin amfrayo na ƙarfe ta hanyar rawar daɗaɗɗen maɗauri a babban gudun don huɗa ramuka da samar da bututun ƙarfe. Diamita na ciki na bututun ƙarfe an ƙaddara ta tsayin diamita na waje na diamita na rawar soja. Bayan girman bututun karfe, yana shiga hasumiya mai sanyaya kuma ana sanyaya shi ta hanyar fesa ruwa. Bayan sanyaya bututun ƙarfe, za a daidaita shi.
2. Sanyi-jawo (birgima) bututun ƙarfe mara nauyi: zagaye bututu blank → dumama → perforation → take → annealing → pickling → oiling (copper plating) → Multi-pass sanyi zane (sanyi mirgina) → blank tube → zafi magani → mikewa → hydrostatic gwajin (dubawa) → marking → ajiya.
Hanyar birgima na zane mai sanyi (mirgina) bututun ƙarfe mara nauyi ya fi rikitarwa fiye da na bututun ƙarfe mai zafi (extrusion). Matakai uku na farko na tsarin samar da su iri ɗaya ne. Bambanci daga mataki na hudu, bututu mai zagaye babu komai bayan bugawa, zuwa kai, annealing. Bayan an gama, ana amfani da ruwa na musamman na acidic don tsinke. Bayan an datse, ana shafa mai. Ana biye da wannan zafin zafi na musamman na bututun rebillet bayan zane mai sanyi da yawa (juyawa mai sanyi). Bayan maganin zafi, an daidaita shi.