15. Menene babban aikin gas walda foda?
Babban aikin walda foda shine samar da slag, wanda ke amsawa da ƙarfe oxides ko ƙazanta marasa ƙarfe a cikin tafki narkakkar don samar da narkakkar slag. A lokaci guda kuma, narkakkar da aka samar ya rufe saman tafkin narkakkar kuma ya keɓe ruwan narkakkar daga iska, don haka ya hana narkakkar tafkin daga samun iskar oxygen a yanayin zafi.
16. Menene matakan tsari don hana porosity weld a waldawar baka?
amsa:
(1) Ya kamata a kiyaye sandar walda da ruwa a bushe kuma a bushe bisa ka'idoji kafin amfani;
(2) Filayen wayoyi na walda da walƙiya su kasance masu tsabta kuma babu ruwa, mai, tsatsa, da sauransu.
(3) Zaɓi ƙayyadaddun walda daidai, kamar ƙarfin walda bai kamata ya zama babba ba, saurin walda ya kamata ya dace, da sauransu;
(4) Yi amfani da hanyoyin walda daidai, yi amfani da na'urorin lantarki na alkaline don waldawar hannu, gajeriyar walda, rage girman girman wutar lantarki, rage saurin safarar sanda, sarrafa guntun baka na farawa da rufewa, da sauransu;
(5) Sarrafa ratar taro na weldments kada ya zama babba;
(6) Kada a yi amfani da na'urorin lantarki waɗanda rufin su ya fashe, bare, ya lalace, ƙazafi ko kuma suna da muryoyin walda waɗanda suka lalace.
17. Menene manyan matakan hana farar tabo yayin walda baƙin ƙarfe?
amsa:
(1) Yi amfani da sandunan walda mai graphitized, wato, yi amfani da sandunan walda na simintin ƙarfe tare da adadi mai yawa na abubuwan graphitizing (kamar carbon, silicon, da sauransu) waɗanda aka saka a fenti ko wayar walda, ko amfani da tushen nickel da tushen tagulla. simintin gyaran ƙarfe na walda;
(2) Preheat kafin waldawa, kula da zafi yayin waldawa, da jinkirin sanyaya bayan walda don rage yawan sanyaya na yankin walda, tsawaita lokacin yankin fusion yana cikin yanayin ja-zafi, cikakken graphitize, da rage damuwa na thermal;
(3) Yi amfani da tsarin brazing.
18. Bayyana rawar juzu'i a cikin aikin walda?
A cikin walda, juyi shine babban abu don tabbatar da ingancin walda. Yana da ayyuka masu zuwa:
(1) Bayan ruwan ya narke, sai ya rinka shawagi a saman narkakkar karfen domin ya kare narkakkar tafki da kuma hana zaizayar iskar gas mai cutarwa.
(2) The juyi yana da ayyuka na deoxidizing da alloying, da kuma yin aiki tare da waldi waya don samun da ake bukata sinadaran abun da ke ciki da kuma inji Properties na weld karfe.
(3) Sanya weld ɗin da kyau.
(4) Rage yawan sanyi na narkakkar karfe da rage lahani irin su pores da haɗakarwa.
(5) Hana fantsama, rage asara, da inganta yanayin walda.
19. Waɗanne abubuwa ne ya kamata a kula da su yayin amfani da kuma kiyaye injunan walda na AC?
(1) Ya kamata a yi amfani da shi bisa ga rated waldi halin yanzu da load duration na waldi inji, kuma kada ku yi obalodi.
(2) Ba a yarda da injin walda ya zama gajeriyar kewayawa na dogon lokaci ba.
(3) The regulating current ya kamata a sarrafa shi ba tare da wani kaya ba.
(4) Koyaushe bincika lambobin waya, fis, ƙasa, hanyoyin daidaitawa, da sauransu kuma a tabbatar suna cikin yanayi mai kyau.
(5) A kiyaye injin walda a tsafta, bushe da iska don hana ƙura da ruwan sama kutsawa.
(6) Sanya shi a tsaye kuma yanke wutar lantarki bayan an gama aikin.
(7) Dole ne a duba injin walda akai-akai.
20. Menene haɗarin karaya?
Amsa: Domin karyewar karaya na faruwa ba zato ba tsammani kuma ba za a iya gano shi kuma a kare shi cikin lokaci ba, da zarar ya faru, sakamakon zai zama mai tsanani, ba wai kawai yana haifar da babbar asarar tattalin arziki ba, har ma yana jefa rayuwar ɗan adam cikin haɗari. Don haka, karyewar sifofin da aka yi wa walda matsala ce da ya kamata a ɗauka da muhimmanci.
21. Halaye da aikace-aikace na fesa plasma?
Amsa: Siffofin feshin jini a cikin jini shine zafin zafin plasma na harshen wuta yana da yawa kuma yana iya narkar da kusan dukkanin kayan da ke hana ruwa gudu, don haka ana iya fesa shi akan abubuwa da yawa. Gudun harshen wuta na plasma yana da girma kuma tasirin haɓakar barbashi yana da kyau, don haka ƙarfin haɗin gwiwa yana da girma. Yana da fa'idar amfani da yawa kuma ita ce hanya mafi kyau don fesa kayan yumbu iri-iri.
22. Menene hanya don shirya katin aikin walda?
Amsa: Shirin shirya katin aikin walda ya kamata nemo madaidaicin kimar tsarin walda dangane da zane-zanen taron samfura, zane-zanen sarrafa sassa da buƙatunsu na fasaha, kuma ya zana zane mai sauƙi na haɗin gwiwa; lambar katin walda, lambar zane, sunan haɗin gwiwa, lambar haɗin gwiwa, lambar cancantar hanyar walda da takaddun takaddun walda;
Shirya jerin walda bisa ga ƙididdigar tsarin walda da ainihin yanayin samarwa, abubuwan fasaha da ƙwarewar samarwa; shirya takamaiman sigogin tsarin walda dangane da ƙimar tsarin walda; Ƙayyade hukumar binciken samfur, hanyar dubawa, da rabon dubawa bisa buƙatun zanen samfur da ƙa'idodin samfur. .
23. Me ya sa muke bukatar mu ƙara wani adadin silicon da manganese zuwa waldi waya na carbon dioxide gas kariya waldi?
Amsa: Carbon dioxide iskar iskar oxygen ce. A lokacin aikin walda, za a ƙone abubuwan ƙarfe na walda, wanda hakan zai rage yawan kayan aikin walda. Daga cikin su, oxidation zai haifar da pores da spatter. Ƙara silicon da manganese a cikin wayar walda. Yana da deoxidizing sakamako kuma zai iya magance matsalolin walda hadawan abu da iskar shaka da spatter.
24. Menene iyakar fashewar gaurayawan masu ƙonewa, kuma waɗanne abubuwa ne suka shafe shi?
Amsa: Matsakaicin adadin abin da iskar gas, tururi ko kura da ke cikin cakuda mai iya faruwa zai iya faruwa ana kiranta iyakar fashewa.
Ƙarƙashin ƙayyadaddun ƙaddamarwa ana kiransa ƙananan fashewa, kuma babban iyakar ƙaddamarwa shine ake kira iyakar fashewa. Ƙayyadadden fashewa yana shafar abubuwa kamar zafin jiki, matsa lamba, abun ciki na oxygen, da diamita na akwati. Lokacin da zafin jiki ya karu, iyakar fashewa yana raguwa; lokacin da matsa lamba ya karu, iyakar fashewa kuma yana raguwa; lokacin da maida hankali na iskar oxygen a cikin gauraye gas ya karu, ƙananan fashewar iyaka yana raguwa. Don ƙura mai ƙonewa, iyakar fashewar sa yana shafar abubuwa kamar tarwatsewa, zafi, da zafin jiki.
25. Wadanne matakai ya kamata a dauka don hana girgizar wutar lantarki yayin walda a cikin ganguna, kwantena, tankunan mai, tankunan mai da sauran kwantena na karfe?
Amsa: (1) A lokacin walda, masu walda su nisanci cudanya da sassan ƙarfe, su tsaya a kan tabarmi masu hana ruwa ko sanya takalman roba, kuma su sanya busassun kayan aiki.
(2) Sai a samu wani waliyyi a wajen kwantena wanda zai iya gani da jin aikin walda, da kuma mai kashe wutar lantarki bisa siginar walda.
(3) Wutar lantarkin fitilun titi da ake amfani da su a cikin kwantena kada ta wuce 12 volts. Ya kamata a yi ƙasa a dogara da harsashi na na'urar wutar lantarki mai ɗaukar nauyi, kuma ba a yarda a yi amfani da na'urori masu motsi ba.
(4) Ba a yarda a ɗauka da masu canza wuta na fitilun ɗaukuwa da na'urar walda a cikin tukunyar jirgi da kwantena na ƙarfe ba.
26. Yadda za a bambanta tsakanin walda da brazing? Menene halayen kowannensu?
Amsa: Siffar waldar fusion ita ce haɗin atom tsakanin sassan walda, yayin da brazing yana amfani da matsakaiciyar matsakaici tare da ƙaramin narkewa fiye da sassan walda - kayan brazing don haɗa sassan walda.
Amfanin waldi na fusion shine cewa kayan aikin injiniya na haɗin gwiwar welded suna da girma, kuma yawan aiki lokacin haɗa lokacin farin ciki da manyan sassa yana da girma. Rashin hasara shi ne cewa damuwa da nakasar da aka haifar suna da yawa, kuma sauye-sauyen tsarin suna faruwa a cikin yankin da ke fama da zafi;
Kayan aikin walda na Xinfa yana da halaye masu inganci da ƙarancin farashi. Don cikakkun bayanai, da fatan za a ziyarci:Welding & Yanke masana'antun - China Welding & Yankan masana'anta & Suppliers (xinfatools.com)
Abubuwan da ake amfani da su na brazing sune ƙananan zafin jiki na zafi, lebur, santsi mai laushi, kyakkyawan bayyanar, ƙananan damuwa da nakasawa. Rashin rashin amfani na brazing shine ƙananan ƙarfin haɗin gwiwa da babban buƙatun rata na taro yayin taro.
27. Carbon dioxide gas da argon gas duka iskar kariya ne. Da fatan za a bayyana kaddarorinsu da amfaninsu?
Amsa: Carbon dioxide iskar iskar oxygen ce. Lokacin da aka yi amfani da shi azaman iskar gas mai karewa a yankin waldawa, zai yi ƙarfi da ƙarfi ya sanya ɗigon ruwa da ƙarfe a cikin narkakken tafkin, yana haifar da asarar abubuwan gami. Ƙaƙƙarfan tsari ba shi da kyau, kuma za a samar da pores da manyan splashes.
Don haka, ana iya amfani da shi ne kawai don walda ƙananan ƙarfe na carbon da ƙananan ƙarfe a halin yanzu, kuma bai dace da walda babban ƙarfe na ƙarfe da ƙarfe mara ƙarfe ba, musamman na bakin karfe. Tun da zai haifar da carbonization na weld kuma rage juriya ga lalata intercrystalline, ana amfani da shi Get ƙasa.
Argon iskar gas ne marar amfani. Domin ba ya amsa sinadarai da narkakkar karfe, sinadari na walda ba ya canzawa. Ingancin walda bayan walda yana da kyau. Ana iya amfani da shi don walda karafa iri-iri, bakin karfe da karafa marasa tafe. Saboda Farashin argon yana raguwa a hankali, don haka ana amfani da shi da yawa don walda ƙaramin ƙarfe.
28. Bayyana halayen weldability da walda na karfe 16Mn?
Amsa: 16Mn karfe dogara ne a kan Q235A karfe da game da 1% Mn kara, da kuma carbon daidai ne 0.345% ~ 0.491%. Saboda haka, aikin walda ya fi kyau.
Koyaya, yanayin taurin yana ɗan girma fiye da na ƙarfe Q235A. Lokacin walda tare da ƙananan sigogi da ƙananan weld ya wuce a kan babban kauri da babban tsari mai tsauri, ƙila za a iya samun fashe, musamman lokacin walda a ƙarƙashin ƙananan yanayin zafi. A wannan yanayin, ana iya ɗaukar matakan da suka dace kafin walda. ƙasa preheating.
Lokacin waldawar baka na hannu, yi amfani da na'urori masu daraja E50; lokacin walda walda ta atomatik ta atomatik baya buƙatar beveling, zaku iya amfani da wayar walda ta H08MnA tare da juzu'i 431; lokacin buɗe bevels, yi amfani da waya walda H10Mn2 tare da juyi 431; Lokacin amfani da CO2 gas mai kariya waldi, yi amfani da waya walda H08Mn2SiA Ko H10MnSi.
Lokacin aikawa: Nuwamba-06-2023
