Jirgin Karfe Mai Sumul Ba Tare Da Tauri Ba - Royal Group

1. Mirgina mai zafi (bututun ƙarfe mara shinge na extrusion): bututun zagaye mara komai → dumama → rami mai rami → birgima mai tsayi uku, birgima mai ci gaba ko fitarwa → cirewa → girma (ko ragewa) → sanyaya → miƙewa → gwajin hydrostatic (ko dubawa) → alama → ajiya
Kayan da ake amfani da shi wajen yin birgima bututun da ba shi da matsala shi ne billet na bututun da ke zagaye, ana yanke tayin bututun da ke zagaye kuma ana sarrafa shi ta hanyar injin yankewa tare da girman kusan mita 1 babu komai, sannan a aika shi zuwa tanda ta hanyar dumama bel ɗin jigilar kaya. Ana ciyar da billet ɗin a cikin tanda kuma a dumama shi zuwa kimanin digiri 1200 na Celsius. Man fetur ɗin hydrogen ne ko acetylene. Maganin zafin jiki a cikin tanda shine babbar matsalar. Bayan billet ɗin bututun da ke zagaye ya fito, ana huda shi ta hanyar matsi. Gabaɗaya, mafi yawan billet ɗin bututun da ke zagaye shine billet ɗin billet mai siffar conical. Wannan nau'in billet yana da inganci mai yawa na samarwa, ingancin samfuri mai kyau, babban diamita mai siffar perforating kuma yana iya sawa da nau'ikan ƙarfe daban-daban. Bayan birgima, billet ɗin bututun da ke zagaye ana birgima shi a jere ta hanyar birgima mai tsayi uku, mai ci gaba da birgima ko fitarwa. Bayan birgima, ya kamata a cire bututun don girmansa. Billet ɗin yana juyawa cikin tayin ƙarfe ta hanyar birgima mai siffar conical a babban gudu don huda ramuka da samar da bututun ƙarfe. Diamita na ciki na bututun ƙarfe ana ƙayyade shi ta hanyar tsawon diamita na waje na bitin billet ɗin billet. Bayan ya auna bututun ƙarfe, sai ya shiga hasumiyar sanyaya kuma a sanyaya ta hanyar fesa ruwa. Bayan ya sanyaya bututun ƙarfe, za a miƙe shi.
2. Bututun ƙarfe mara shinge mai sanyi (na birgima): bututun zagaye mara komai → dumama → huda → kai → annealing → pickling → mai (rufe jan ƙarfe) → zane mai sanyi mai yawa (birgima mai sanyi) → bututu mara komai → maganin zafi → miƙewa → gwajin hydrostatic (dubawa) → alama → ajiya.
Hanyar birgima ta hanyar zana bututun ƙarfe mara shinge (mirgina) ta fi rikitarwa fiye da bututun ƙarfe mara shinge mai zafi (extrusion). Matakai uku na farko na tsarin samar da su iri ɗaya ne. Bambanci daga mataki na huɗu, bututun zagaye mara shinge bayan an huda, zuwa kai, annealing. Bayan annealing, ana amfani da ruwa na musamman mai acidic don annealing. Bayan annealing, ana shafa mai. Bayan haka, ana yin maganin zafi na musamman na bututun rebillet bayan an yi masa zane mai sanyi da yawa (nannealing mai sanyi). Bayan annealing mai zafi, ana miƙe shi.