Heat fadada ne wani tsari na karfe bututun, shi ne karamin caliber karfe bututun aiki zuwa babban caliber karfe bututun. Heat fadada karfe bututu ne kadan mafi m inji kaddarorin fiye da zafi madaidaiciya karfe bututu. Heat fadada karfe bututu amfani da biyu mataki gudanarwa tubing inji cone mold fadada fasahar, dijital matsakaicin mita induction dumama fasahar, na'ura mai amfani da ruwa fasahar a kan inji daya, tare da sa m tsari, low makamashi amfani, low gini zuba jari, kyau kayayyakin inganci, m kewayon albarkatun kasa da kayayyakin bayanai dacewa, m sauki da low shigar da samar da yawa daidaitawa, maye gurbin gargajiya jawo-dial fadada fasahar karfe bututu masana'antu. Saboda wahala warware manyan calibre karfe bututun samarwa, zafi fadada karfe bututun zama muhimmin kayayyakin tushen warware manyan calibre karfe bututun karancin kasarmu, sauƙaƙe manyan calibre karfe bututun kasuwar samarwa tashin hankali.

iyakance ga karfe masana'antu seamless karfe bututun bayanin kula da iyakance, bisa ga bukatun karshen masu amfani da shi ne zafi fadada karfe bututun da aka haife, zafi fadada karfe bututun bayanin kula da samfurin m mafi girma, yawanci ne bisa ga abokin ciniki bukatun da aka yi, zafi fadada karfe bututun ne ko da yaushe muna cewa zafi fadada bututun, m ƙananan amma karfi shrinkage karfe bututun, (seamless karfe bututun) za a iya kira a takaice zafi fadada bututun.