Haɗaɗɗen bututun ƙarfe yana haɗa da abubuwa biyu (ko fiye) waɗanda aka haɗa su zuwa ɗaya ta hanyar takamaiman hanyoyin fasaha don yana da cikakkun halaye Sabon bututun ƙarfe na Jima'i.Tun daga shekarun 1960, Japan, Amurka, Jamus, Birtaniya da sauran kasashe sun ba da muhimmanci sosai ga samar da bututun karfe, kayayyakin bututun karfe da suka hada da makamashi, ginin jiragen ruwa, sinadarai, man fetur da injina da sauran fannonin da suka yadu sosai. amfani.
Haɗaɗɗen bututun ƙarfe yana haɗa da abubuwa biyu (ko fiye) waɗanda aka haɗa su ɗaya ta hanyar takamaiman hanyoyin fasaha ta yadda ya sami cikakkun halaye.
Tun a shekarun 1960, Japan, Amurka, Jamus, Birtaniya da sauran kasashe sun ba da muhimmanci sosai ga samar da hadakar karfe.Farashin PTFE, Haɗaɗɗen samfuran bututun ƙarfe a cikin makamashi, ginin jirgi, sinadarai, man fetur da injina da sauran fannoni an yi amfani da su sosai.Haɗaɗɗen fasahar sarrafa bututun ƙarfe galibi ya haɗa da mirgina, simintin ƙarfe, extrusion, brazing, walda da sauransu.
- 1.Application kewayon hada karfe bututu
Haɗin yanayin nau'ikan kayan abu guda biyu na composite baƙin ƙarfe an dogara da bututu na aikace-aikacen gaba ɗaya ya dogara da bukatun aikace-aikacen da halaye na aikace-aikace.Babban bututun ƙarfe na ƙarfe yana da ƙarfin ƙarfi da ƙarfi, ƙarancin farashi da kyakkyawan aikin tsari.Bututun ƙarfe da aka rufe zai kasance da ƙarfi mai ƙarfi kuma yana da ikon yin tsayayya da lalata matsakaicin muhalli.Wannan Layer na iya zama a cikin Layer na ciki na bututun ƙarfe mai haɗawa (bututu mai haɗaɗɗen ciki) ko a cikin ƙasan waje (bututun haɗaɗɗen waje) Dangane da yanayin amfani za a iya raba su cikin sinadarai amfani da bututun gas, bututun mai da iskar gas da mai. da bututu, tukunyar jirgi, sharar gida incinerator tare da mahara tube, bututu don zafi Exchanger, tare da lalacewa juriya, lalata juriya tsarin da mahara bututu da gine-gine kayan ado bututu, da dai sauransu. za a fadada bututu zuwa mafi faffadan filayen aikace-aikace.
- 2. Hanyar samarwahadadden karfe bututu
Za a iya raba bututun ƙarfe masu haɗaka zuwa nau'i biyu, bimetallic da Layer-Layer, bisa ga yanayin haɗin gwiwar haɗin gwiwar nau'ikan bututun ƙarfe guda biyu.The hada karfe bututu tare da lamba dubawa na ciki da kuma na waje Layer da aka haɗa da metallurgical bonding digiri ana kiransa bimetallic bututu, yayin da lamba dubawa na ciki da kuma m Layer kawai kai inji dangane, da kuma hada da karfe bututu tare da a tsaye sashe Layer da Layer yardar kaina rabu. ana kiran bututu mai Layer biyu.Akwai hanyoyi daban-daban na tsari don samar da bututun ƙarfe mai haɗaka, kowannensu yana da halayensa da iyakokin aikace-aikace.
- 2.1 Tsarin aiki mai zafi
A wannan hanyar, ana amfani da billet ɗin ƙarfe na ƙarfe na yau da kullun azaman ƙarfe mai tushe, ana huda rami na tsakiya, kuma ana amfani da bakin karfe ko sandar gami da nickel azaman Layer na ciki.Garanti na waje da kaddarorin jikin bututu mai hade, buƙatun lalata bututu na ciki, lokacin da mashaya da billet saman bayan saman rami na ciki ya kasance mai tsabta, za su bar ramin billet ɗin bututu, walda hatimin ƙarshen bututun, amfani da matakin. na low mita coil don sarrafa dumama, bayan an mai zafi don saita zazzabi, a cikin 1 600 t hyprorster clection cirction, bayan tubalin tube billet, mashaya seady da tushe abu zuwa karfe hade.Ana amfani da wannan tsari ta hanyar Tubacex, wani kamfani na ƙasar Sipaniya da ke fitar da bututun ƙarfe, don samar da bututun ƙarfe da aka haɗa tare da diamita na waje na 60 · 3 da 219 · Imm.Kaurin bututun da ke jure lalata shine yawanci 10% zuwa 0% na jimlar kauri na bututu mai layi, yawanci tsakanin 2 cm zuwa 1 cm a ƙarami.
- 2.2 Haɗin ƙarfe farantin walda
Ana iya amfani da wannan hanyar don kera bututun ƙarfe na ƙarfe don isar da bututun mai da iskar gas tare da diamita mafi girma fiye da 300mm. An haɗa farantin ƙarfe na ƙarfe a cikin bututu ta hanyar UO, sannan kuma a sanya shi cikin kabu mai tsayi.Tsarin kwararar bututun ƙarfe da aka samar ta wannan hanya shine kamar haka: walƙiya a tsaye - bututun faɗaɗa - zafin jiyya na takardar karfe i-jo forming billet.
- 2.3 Tsarin sanyi yaduwa annealing
Billet ɗin bututu na kayan daban-daban ana yin su zuwa bututun da aka yi birgima ko sanyi-sanyi.Wani bel na bakin ciki mai ƙarancin narkewa na musamman yana rauni a gefen waje na ciki na bututun billets.Bayan zane mai sanyi, ana aiwatar da annealing mai saurin yaduwa.Halayen haɗaɗɗun ƙarfe mai lu'u-lu'u mai dacewa da bututu da aka samar ta wannan tsari shine cewa iyakar haɗin gwiwa a bayyane take kuma har ma.Saboda ƙarin ƙaramin ƙaramin ƙarfe mai narkewa tsakanin hanyoyin haɗin gwiwa guda biyu, ƙarfin ɗaurin sa yana da girma, yawanci ya fi 300MPao.Ƙarfin gasket ɗin ƙarfe mai ƙarancin narkewa yawanci Ni – P alloy ne, kuma zafinsa na narkewa yana raguwa tare da haɓaka abun ciki na P. Sauran gaskets sune B (1, 4Wt%), Si (har zuwa 9Wt %), cr (har zuwa 30Wt%) baƙin ƙarfe - ko kayan haɗin ni.Matsayin narkewa na kayan gasket dole ne ya zama ƙasa da na bututun tushe na waje da bututun ciki.The hada karfe tube samar da wannan tsari iya jure lankwasawa forming, da girma daidaito da kuma surface ingancin iya saduwa da misali bukatun.
Lokacin aikawa: Afrilu-21-2016