Agwiwar hannu mara kyauwani nau'in bututu ne da ake amfani da shi don juya bututu. Daga cikin dukkan kayan aikin bututun da ake amfani da su a cikin tsarin bututun, adadin shine mafi girma, kusan 80%. Gabaɗaya, ana zaɓar hanyoyin ƙirƙira daban-daban don gwiwar hannu na kaurin bango daban-daban. A halin yanzu. Ƙirƙirar kafawar gwiwar hannu mara kyau da aka saba amfani da ita a masana'antun masana'antu sun haɗa da turawa mai zafi, tambari, extrusion, da sauransu.

Danyen kayan aikin bututun madaidaicin madaidaicin bututun bututu ne babu komai, kuma an yanke amfrayon zagayen bututun zuwa wani fanko mai tsawon kusan mita daya da injin yankan, kuma ana tura shi zuwa tanderun don dumama ta hanyar bel na jigilar kaya. Ana ciyar da billet ɗin a cikin tanderu kuma ana dumama shi zuwa zafin jiki na kusan digiri 1200 ma'aunin Celsius. Man fetur shine hydrogen ko acetylene. Kula da zafin wutar makera muhimmin batu ne. Bayan an fitar da billet ɗin zagaye, an sanya shi a cikin injin huɗa ta rami. Na'ura mai fa'ida ta gama gari ita ce na'ura mai juzu'i na juzu'i. Wannan na'ura mai ba da wutar lantarki yana da ingantaccen samarwa, ingancin samfurin, babban diamita na perforation kuma yana iya sa nau'ikan kayan aikin bututu. Bayan an huda, ana jujjuya billet ɗin a jere, birgima ko fitar da birgima guda uku. Bayan extrusion, tube ya kamata ya zama girman girman. Ana jujjuya na'ura mai girma da sauri ta hanyar juzu'in juzu'i a cikin tsakiyar karfe don samar da bututu.

Ƙunƙarar gwiwar gwiwar hannu mara kyauhanya
1. Hanyar ƙirƙira: Ƙarshen ko ɓangaren bututu yana naushi da injin swaging don rage diamita na waje. Na'ura ta gama gari tana da nau'in juzu'i, nau'in haɗin gwiwa da nau'in abin nadi.
2. Hanyar mirgina: Gabaɗaya, ba a amfani da mandrel, kuma ya dace da gefen ciki na bututu mai kauri. Ana sanya ainihin a cikin bututu, kuma ana danna kewayen waje ta hanyar abin nadi don sarrafa gefen zagaye.
3. Hanyar hatimi: Ƙarshen bututu yana faɗaɗa zuwa girman da ake buƙata da siffar da ake buƙata tare da maƙalar maɗaukaki a kan latsa.
4. Hanyar yin lankwasa: Akwai hanyoyi guda uku da aka fi amfani da su, wata hanya ita ce hanyar mikewa, wata hanyar kuma ita ce hanyar latsawa, hanya ta uku kuma ita ce hanyar abin nadi, akwai rollers 3-4, rollers guda biyu, daya daidaitawa. abin nadi, daidaitawa Tare da kafaffen gibin mirgina, bututu da aka gama yana lanƙwasa.
5. Hanya ta hurawa: daya shine a sanya roba a cikin bututu, sannan a danne bangaren sama da naushi don sanya bututun ya zama mai jujjuyawa; wata hanya kuma ita ce ta samar da bulge na hydraulic, cika tsakiyar bututun da ruwa, kuma ruwan yakan jefa bututun cikin abin da ake bukata Yawancin siffofi da samar da bellows ana amfani da su ta wannan hanyar.