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Bututun ƙarfe mara nauyi mai zafi

Bututun ƙarfe mara nauyi mai zafi: zafi mai zafi yana da dangantaka da sanyi mai sanyi, sanyi mai sanyi yana ƙasa da zafin jiki na recrystallization na mirgina, kuma ana yin zafi mai zafi a sama da zafin jiki na recrystallization na mirgina.

Tsarin bututun ƙarfe mara nauyi mai zafi:

Hot-birgima sumul karfe bututu samar tushe nakasawa tsari za a iya taƙaita a matsayin uku matakai: perforation, tsawo da kuma karewa.

Ana ciyar da Billet a cikin tanderun dumama, zafin jiki yana kusan digiri 1200 ma'aunin Celsius.Fuel don hydrogen ko acetylene.Matsakaicin zafin wutar tanderu yana da mahimmanci don sanya bututun iska zagaye, bayan sakin bugun bugun.waxanda gabaɗaya sun fi kowa naushi mai naushi irin wannan naushi, ingantaccen samarwa, ingancin samfur, ƙarar ƙarar faɗuwa, sanye da ƙarfe iri-iri.Bayan huɗawa, bututun zagaye ya kasance mai jujjuyawar giciye mai birgima, birgima ko extrusion.

Gabaɗaya aiwatar da bututun ƙarfe mara nauyi mai zafi: sanduna zagaye → dumama → huda → jujjuya giciye mai jujjuyawa uku, mirgina ko extrusion → ware → girman (ko ragewa) → sanyaya → parison tube → daidaitawa → gwajin hydrostatic (ko gano flaw) → mark → ajiya.

Bayan extrusion kashe bututu sizing.Girman niƙa ta hanyar jujjuyawar mazugi mai sauri a cikin bututun Billet don samar da bututun ƙarfe.An ƙaddara diamita na bututun ƙarfe na ciki ta tsawon tsayin diamita na waje na rawar sojan niƙa.Bayan girman, bututun ƙarfe don shigar da hasumiya mai sanyaya ta hanyar sanyayawar ruwa, bututun ƙarfe bayan sanyaya, dole ne a daidaita.An aika ta bututun isar da sako ta hanyar daidaita injin gano ƙarfe (ko gwajin hydrostatic) don gudanar da aibi na ciki.Abubuwan da ke cikin bututun ƙarfe kamar fashe, kumfa za a gano.

Amfani

zafi birgima sumul karfe bututu iya lalata simintin gyaran kafa microstructure na karfe ingot, tace daga cikin crystal hatsi na karfe, da kuma kawar da lahani na microstructure, sabõda haka, da karfe kungiyar compacting, inganta inji Properties.Wannan haɓakawa yana nunawa a cikin jagorar juyawa, don haka karfe ya daina zuwa wani yanki na isotropic;zubar da samuwar kumfa, tsagewa, da kasusuwa, a karkashin yanayin zafi da matsa lamba kuma ana iya haɗa su tare.

Rashin hasara:

  1. Bayan zazzafan mirgina, abubuwan da ba su da ƙarfe a cikin ƙarfe na ciki (musamman sulfide da oxides, da silicate) an danna su a cikin takardar, abin mamaki (laminated) ya bayyana.Ƙirƙirar ƙarfe a cikin kauri shugabanci ta aikin ja ya tabarbare sosai, kuma yana iya bayyana a cikin tsagewar walƙiya mai tsagewa.Weld shrinkage ja hankalin gida sau da yawa yakan kai sau da yawa da yawan amfanin gona iri, da iri da yawa girma fiye da lodin lalacewa;
  2. Ragowar damuwa ta haifar da rashin daidaituwa.Damuwar da ta rage ita ce ma'aunin ma'auni na kai-da-kai na ciki in babu karfi na waje, karfe mai zafi na daban-daban na giciye yana da saura damuwa irin wannan Yawancin sashin sashin karfe ya fi girma, mafi girma da damuwa.Damuwa na saura shine ma'auni na kai-da-kai, amma membobin ƙarfe a cikin ƙarfin aiki na waje ko suna da wani tasiri.Irin su nakasawa, kwanciyar hankali, anti-gajiya na iya rashin kyau.
  3. Abubuwan ƙarfe masu zafi da aka yi birgima, ƙarancin iko na kauri da faɗin gefen.Mun saba da thermal fadada da ƙanƙancewa, ko da farkon zafi-birgima fita ne misali tsawon, kauri, ko za a yi wasu korau karshe bayan sanyaya, wannan korau bambancin gefen nisa fadi da kara kauri daga cikin wasan kwaikwayon na karin bayyane.

Don haka don babban karfe don faɗin bakin karfe, kauri, tsayi, kwana, da gefe babu wata doka da ke buƙatar madaidaicin madaidaicin.

Lalacewar bututun Karfe mara zafi mai zafi:

Rabuwa

Located a saman ciki na karfe bututu aka a tsaye rarraba, an tashe helical, m karfe rabuwa ko karya-kamar dissection.

Madaidaicin ciki

Located a saman ciki na bututun karfe ya rarraba a tsaye, yana nuna madaidaicin ko siffa guda ɗaya wanda aka naɗe tare da dogon lokaci, akwai na gida.

Ramin da bai dace ba

Located a cikin surface na bututu aka tsaye rarraba, ① yana daya ko biyu ganuwar 180 ° fita daga thickening, ko a cikin surface na bututu da bango kauri na mandrel rabuwa batu ya thickened siffar, kuma aka sani da ciki drum kit. .② lambun karfe na ciki wani kauri ne mai siffa mai siffar hexagonal, wanda kuma ake kira hexagon.

Ƙunƙarar bango

Located a kan ciki surface na karfe bututu, karfe transverse sashe thinnest karfe bututu ciki surface depressions, localized thinning na bango kauri daga cikin matsananci ƙanƙance kusan tsage.

Mirgina tabo

Dogayen shugabanci na saman ciki na kusoshi na karfe kamar tabo, bumps ko lumps nadede saman bututun ciki.

Ciki nadawa

Located a saman ciki na ƙarshen yanki na bututun ƙarfe, na gida ko ƙwanƙwasa a tsaye karkace ko naɗaɗɗen madauri mara daidaituwa.

Mirginawa

Ya kasance a cikin tsayin tsayin bangon bututun wani sashi ne ko cikakken tsayi a cikin mazugi na waje ko madaidaicin corrugations a saman saman bututu ta cikin dogayen tsagi na tsayin daka suna bayyani bayyanannen siffa, gabaɗaya rectilinear, mutum don yanke siffar.

Yaga

Wurin da ke kan bututu mai tsayin tsayin ƙarfe saman ya nuna nau'i daban-daban na fashewar juzu'i, mai siffa mai lu'u-lu'u da rami mai kamanni ta cikin jikin tubular.

Ninka tsaga biyu

Located a kan a tsaye surface na bututu bango obliquely mika zuwa cikin biyu na a tsaye tsaga, da fasa wani lokacin warwatse rarraba a kan bututu wani lokacin bayyana m.

Ninki biyu na tsakiya

Located a kan a tsaye surface na bututu bango obliquely mika zuwa cikin biyu na a tsaye tsaga, da fasa wani lokacin warwatse rarraba a kan bututu wani lokacin bayyana m.

Nadewa waje

① akan bututu na waje yana gabatar da nadawa na yau da kullun triangle mai siffa, tsaga biyu madaidaiciya madaidaiciya guda ɗaya madaidaiciya ko takardar da ba ta dace ba.

② Gabaɗaya gabaɗaya mai ci gaba ko na'ura mai ɗorewa-kamar na'urar dinki mai kama da 60 °, 120 °, 180 ° ɗinki mai nau'in bututu mai naɗewa a cikin madaidaiciyar shugabanci na waje.

③ waje a tsaye nade akan bututun karfe karkace.

④ madaidaiciyar shugabanci na saman bututu ta hanyar dogon ko gajeriyar ɗigon ɗigon ɗigon ɗigon ɗigon ɗigo mai ninki biyu ko uku na 120 °.


Lokacin aikawa: Oktoba-23-2022