A matsayin mafi cutarwa nau'in lahani na walda, fasa waldi yana tasiri sosai ga aiki, aminci da amincin tsarin walda. A yau, zan gabatar muku da daya daga cikin nau'ikan fasa - lamellar cracks.
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)
01
Abubuwan da ba na ƙarfe ba. A yayin aikin birgima na faranti na ƙarfe, wasu abubuwan da ba na ƙarfe ba (kamar sulfide da silicates) a cikin ƙarfen ana mirgina su cikin ɗigon ƙarfe daidai da alkiblar mirgina, wanda ke haifar da bambance-bambance a cikin kayan aikin ƙarfe. Haɗin kai abubuwa ne masu yuwuwa na tsagewar lamellar a cikin sifofin da aka welded kuma su ne babban dalilin tsagewar lamellar.
02
Kame damuwa. Saboda tasirin sake zagayowar zafi na walda, ƙarfin hanawa zai bayyana a cikin haɗin gwiwa da aka haɗa. Don wani nau'in T mai siffa da giciye na faranti mai kauri mai birgima, ƙarƙashin yanayin cewa sigogin walda ba su canzawa, akwai matsananciyar ƙuntatawa ko kamewa. Ƙarfi, lokacin da ya fi wannan ƙima, mai yiwuwa tsagewar lamellar zai iya faruwa.
03
Yaduwa na hydrogen. Hydrogen shine ke haifar da fashewa. Saboda yaduwa da hadewar hydrogen a cikin kwayoyin halitta, damuwa na gida yana ƙaruwa sosai. Lokacin da hydrogen ya taru a ƙarshen abubuwan da aka haɗa, yana haifar da abubuwan da ba na ƙarfe ba don rasa mannewa tare da ƙarfe kuma yana cire abubuwan da ke kusa. Ƙarfe yana nuna halayen karyewar da aka haifar da hydrogen akan saman fashe.
04
Tushen kayan kaddarorin. Ko da yake haɗawa shine babban dalilin tsagewar lamellar, kayan aikin injiniya na ƙarfe kuma suna da tasiri mai mahimmanci akan tsagewar lamellar. Ƙaƙƙarfan filastik na ƙarfe ba shi da kyau, kuma raguwa ya fi yaduwa, wanda ke nufin cewa ikon yin tsayayya da tsagewar lamellar ba shi da kyau.
Don hana abin da ya faru na fashewar lamellar, ƙirar ƙira da tsarin gine-gine sun fi dacewa don kauce wa matsalolin Z-direction da damuwa. Takamaiman matakan sune kamar haka:
1. Inganta ƙirar haɗin gwiwa kuma rage ƙuntatawa. Ƙayyadaddun matakan sun haɗa da: ƙaddamar da ƙarshen farantin mai ɗaukar baka zuwa wani tsayin daka don hana tsagewa; canza yanayin walda don canza alkiblar damuwa na raguwar walda, canza madaidaicin baka mai ɗaukar farantin a tsaye zuwa faranti mai ɗaukar hankali a kwance, canza yanayin walda, Yin gabaɗayan yanayin damuwa na haɗin gwiwa a layi daya da mirgina Layer na iya haɓaka lamellar sosai. juriya da hawaye.
2. Ɗauki hanyoyin walda masu dacewa. Yana da fa'ida a yi amfani da hanyoyin walda masu ƙarancin hydrogen, kamar walda mai garkuwar iskar gas da waldawar arc ɗin da ke ƙarƙashin ruwa, waɗanda ke da ɗan ƙaramin hali na fashe sanyi kuma suna da fa'ida don haɓaka juriya ga tsagewar lamela.
3. Yi amfani da ƙananan ƙarfi daidai da kayan walda. Lokacin da ƙarfe na walda yana da ƙarancin yawan amfanin ƙasa da haɓaka mai girma, yana da sauƙi don mai da hankali akan walda da rage ƙarancin zafi a cikin yankin da ke fama da zafi na tushen ƙarfe, wanda zai iya haɓaka juriya ga tsagewar lamellar.
4. A cikin sharuddan aikace-aikace na walda fasahar, da surface surfacing kadaici Layer da ake amfani; Ana amfani da walda mai ma'ana don daidaita rarraba iri da kuma rage yawan damuwa.
5. Don hana hawayen da ke haifar da tsagewar sanyi, ya kamata a yi amfani da wasu matakan hana sanyi kamar yadda ya kamata, kamar haɓaka preheating yadda ya kamata, sarrafa zafin jiki na interlayer, da dai sauransu; Bugu da kari, ana iya amfani da hanyoyin magance damuwa kamar matsananciyar damuwa.
6. Hakanan zamu iya amfani da tsarin waldawa na ƙananan ƙafafu na walda da walƙiya da yawa ta hanyar sarrafa girman walda.
Lokacin aikawa: Nuwamba-16-2023
