A cikin babban adadin masana'antu, ana amfani da bututun ƙarfe na murabba'in ƙarfe.Samar da irin wannan bututu yana karuwa kowace rana.Tare da kwatanta zuwa zagaye karfe bututu, square karfe bututu ne kadan mafi inganci.Dalili kuwa shine ginshiƙin murabba'in ya fi inganci fiye da ginshiƙin madauwari mai ƙarfi.

A cikin tsarin sararin samaniya na al'ada, ga membobin mashaya, ana amfani da membobin sashe mara kyau.A sashin haɗin gwiwa, ta hanyar walda tare da shimfidar lanƙwasa, an haɗa membobin mashaya.Saboda haka, wannan tsari yana ɗaukar lokaci mai tsawo kuma yana da wuyar gaske.Don sauƙaƙe matsalar, ana amfani da bututun ƙarfe na murabba'in ƙarfe.Ana amfani da bututun ƙarfe na murabba'in a cikin tsari na musamman.Dukansu perpendicular tarnaƙi na biyu square karfe bututu ne bi da bi masu hada kai a perpendicular kuma a layi daya da jirgin na frame jikin.A wannan yanayin, ta hanyar walda, madaidaicin ma'auni na membobin mashaya suna haɗuwa tare da ɗan gajeren layin walda

Akwai yafi nau'ikan nau'ikan fasaha guda uku na bututun murabba'i maras sumul: mai zafi, mai sanyi da walda.Domin sanyi kõma murabba'in tube, da ikon jure gida mayar da hankali load ne mai rauni, da waldi tsari samar bututu welds ne mai rauni mahada, ba shafi gina high-karshen zama gine-gine.A halin yanzu, janar na cikin gida yana amfani da ƙirar bututun da aka zana ko welded.Yayin da ƙetare galibi ke amfani da tsarin birgima mai zafi, da cikakken iya biyan buƙatun manyan gine-gine.The high-karshen zafi-birgima sumul square tube yi yana da kyau hali Properties, mai kyau weldability, low samar farashin da high samar da ya dace.

An fahimci cewa zafi-birgima sumul square tube saboda tsarin fasali na nasa, yadda ya kamata kewaye da alaka tsakanin shafi da katako waldi lahani da kuma kai ga yi wulãkanci, zai iya muhimmanci inganta matsalar low yadda ya dace na gargajiya low-tashi. tsari na kankare, manyan gurbacewar yanayi, almubazzaranci da sauran batutuwa;a lokaci guda, samfurin yana da irin wannan aiki mai kyau kamar ƙarfin uniform, daidaitaccen girman girman, ƙarfin ƙarfi da juriya mai kyau, zai iya inganta juriya na gine-ginen gine-gine, za a yi amfani da shi sosai a cikin gine-ginen ƙarfe na ƙarfe, filayen jiragen sama da sauran gine-gine, kuma ya zama babban kayan tallafi na masana'antar gine-gine a nan gaba, tare da kyakkyawan fata na kasuwa.A halin yanzu, an sanya wannan bututun ƙarfe maras sumul a kasuwa kuma ana amfani da shi sosai a cikin manyan gine-gine.