Njira yogubuduza yopangira mpira mphero liner imaphatikizapo njira zopangira izi:
(1) smelting, zinthu zidutswa mu sing'anga pafupipafupi magetsi ng'anjo kwa smelting, kutentha kutentha: 1600-1630 digiri;
(2) Zosakaniza: Chitsanzo ndi kuyesa chitsulo chosungunula mu sing'anga-kawirikawiri ng'anjo yamagetsi kuti muzindikire zomwe zili muchitsulo chosungunula, ndi kukonza kuchuluka kwa kufufuza zinthu muzitsulo zosungunula mpaka kulemera kwa chinthu chilichonse muchitsulo chosungunula kukwaniritse zofunikira izi: C {{2}%,-0}%,-0%,-0% Si 0.90 1.2%, 1.0 1.2% Ni, Cr, Mo 0.20 0.90 1.2% peresenti kufika 0.3%, S 0.025% kapena zochepa, P acuities anali 0.025% ndi 0.5 1.5% Cu ndi Re 0.1-0.2%, malipiro ndi Fe;
(3) chithandizo cha metamorphic: chosinthacho chimakutidwa ndi chitsulo kapena chitsulo chojambulapo ndikuyika pansi pa ladle, ndi chitsulo chosungunuka chomwe chimakwaniritsa zofunikira za chiŵerengero cha zinthu ndi mankhwala a metamorphic, ndipo kutentha kwa metamorphic ndi 1600-1630 digiri;
(4) Kuponyera billet: chitsulo chosungunuka chosinthidwa chimatsanuliridwa mu billet pa kutentha kwa kutentha kwa 1560-1580 digiri;
(5) Kugudubuza, pamene kutentha kwa pamwamba kwa billet kumachepetsedwa kufika 850-950 digiri, mphero yopukutira imagwiritsidwa ntchito kupukuta billet muzitsulo zazitsulo, ndipo gawo la mtanda la zitsulo ndilofanana ndi la mbale yopangira mphero kuti ipangidwe;
(6) Kudula: kugwiritsa ntchito makina odulira okha kudula mbali zopanda kanthu zomwe kutalika kwake ndi mawonekedwe ake amafanana ndi mbale yopangira mphero kuti ipangidwe;
(7) Akupera, akupera aliyense mapeto nkhope ndi ngodya opanda kanthu mbali odulidwa ndi kupanga;
(8) Kuchiza kutentha: ikani chopukutira chopukutira mphero mu ng'anjo yotentha, kutentha kwa madigiri 1000-1050, ndikusunga kutentha kwa maola 5-6; Ndiye kuzimitsa mu dziwe kwa maola 2-3; Kenaka yikani mpheroyo ku ng'anjo yotentha, kutentha kwa madigiri 200-250 kwa maola 2-3, ndikuziziritsa mwachibadwa mu ng'anjo yotentha.
