Kariya ga Monel gami waldi

1.Material selection da kuma masana'antu waldi sun dace da ASME Boiler da Lambobin Jirgin Ruwa da kuma lambar bututun matsi na ANSI.

2. Abubuwan da ke tattare da sinadaran karfe na sassan da aka sassaka da kayan da aka yi da kayan aiki dole ne su bi ka'idodin ma'auni.Ya kamata kayan tushe ya kasance daidai da tanadin fasaha na ASTM na abubuwan da suka dace B165, B164, B127.Abubuwan filler yakamata su kasance daidai da kayan filler ASME A-42 don ƙayyadadden ER-NiCu-7 ko ER-ENiCu-4.

3. Gilashin weld da kewayen da ke kewaye da tabo (mai ester, fim din mai, tsatsa, da dai sauransu) ya kamata a tsaftace shi tare da bayani mai tsabta.

4. Lokacin da yawan zafin jiki na tushe abu ne kasa da 0 ℃, shi ake bukata preheat zuwa 15.6-21 ℃, da weld bevel na abu ne mai tsanani zuwa 16-21 ℃ a cikin 75mm.

5. The weld bevel prefabricated yafi dogara da waldi matsayi da kauri daga cikin kayan, Monel gami na bukatar bevel kwana na weld fiye da sauran kayan, m baki fiye da sauran kayan ya zama kananan, ga monel gami farantin kauri na 3.2. -19mm, da bevel kwana ne 40 ° kwana tare da m baki 1.6mm, tushen rata na 2.4mm, kasa da 3.2mm weld a garesu da za a squarely yanke ko dan kadan yanke bevel, ba yanke bevel.An fara sarrafa bangarorin walda ta hanyoyin injina, ko wasu hanyoyin da suka dace, kamar shirin sarrafa iskar gas ko yankan plasma, yankan baka.Ko da kuwa hanyar, gefen weld ya kamata ya zama uniform, santsi kuma ba tare da burr ba, bevel ɗin ba zai kasance da slag, tsatsa da ƙazanta masu cutarwa ba, idan akwai tsatsa da sauran lahani suna buƙatar gogewa sannan a bincika a hankali kafin waldawa. .

6. Abubuwan da aka tanadar da kauri na farantin kayan iyaye, ƙayyadaddun kayan da aka ba da shawarar (4-23mm) har zuwa 19mm mai ƙyalli mai ƙyalli, sauran kauri kuma za'a iya welded amma suna buƙatar haɗe-haɗe na cikakken zane.

7. Welding kafin sandar walda don bushewa jiyya, bushewa zafin jiki a 230 - 261 C.

8. Yanayin walda: ba za a iya waldawa saman sassan sassa na welded ba saboda ruwan sama da danshi, kwanakin damina, kwanakin iska ba za su iya zama waldi na iska ba, sai dai idan an kafa wani shinge mai kariya.

9. Ba a buƙatar maganin zafi bayan waldawa.

10. Mafi yawan fasahar walda tana da karfen baka waldi (SMAW), kuma ana iya amfani da iskar gas garkuwar tungsten arc waldi (GTAW), waldi ta atomatik shineba a ba da shawarar ba.Idan an yi amfani da walda ta atomatik, to, argon baƙar walda, yin amfani da sandar walda ba ta yin aikin walda ba, don yin aikin walƙiya na ƙarfe na walda, yana iya zama ɗanɗaɗa don taimakawa kwararar ƙarfe na walda, amma matsakaicin girman nisa ya yi. bai wuce sau biyu diamita na sandar walda ba, akan amfani da hanyar SMAW na walda mai sauƙisigogi sune: Powerarfin wuta: kai tsaye, haɗin baya, aiki mara kyau Voltage: 18-20VCurrent: 50 - 60AElectrode: gabaɗaya φ2.4mm ENiCu-4 (Monel 190) lantarki

11. Ya kamata a haɗa walda tabo a tushen tashar walda.

12. Bayan an kafa weld, ba a yarda da gefen ba.

13. Ya kamata a ƙarfafa walƙiya na butt, tsayin ƙarfafawa bai kamata ya zama ƙasa da 1.6mm ba kuma ba fiye da 3.2mm ba, tsinkaya kada ya zama fiye da 3.2mm, kuma ba fiye da 3.2mm na bututu bevel.

14. Bayan waldi kowane Layer na weld, dole ne weld juyi da kuma mannewa da bakin karfe waya goga cire mai tsabta, kafin waldi na gaba Layer.

15. Gyaran lahani: Lokacin da ingancin walda, aikace-aikace na niƙa da yanke ko arc gas za a tono lahani har sai launin karfe na asali, sannan a sake yin walda bisa ga tsarin walda na asali da fasaha na fasaha, kada ba da damar hanyar guduma don rufe rami na walda ko cika rami da abubuwa na waje.

16. Carbon karfe overlay walda Monel alloy zai yi amfani da p2.4mm waldi sanda, saboda welded Monel alloy Layer ya kamata a kalla 5mm kauri, domin kauce wa fasa, sai a raba akalla biyu Layer na walda.Layer na farko shine canjin canjin Monel gami da gauraye da karfe carbon.Layer na biyu sama da zallar Monel alloy zalla, bayan an sarrafa shi don tabbatar da cewa akwai tsaftataccen kauri mai inganci na Monel alloy na 3.2mm, kowane Layer na walda za a sanyaya shi zuwa zafin daki, tare da goga na bakin karfe don cire walƙiyar walda kafin walda. a kan wani Layer.

17. Kauri fiye da 6.35 mm na Monel gami farantin, butt waldi da za a raba hudu ko fiye yadudduka na waldi.Na farko uku yadudduka samuwa lafiya waldi sanda (φ2.4mm) waldi, na ƙarshe 'yan yadudduka samuwa m waldi sanda (φ3.2mm) waldi.

18. Monel gami waldi tsakanin AWS ENiCu-4 waldi sanda ER NiCu-7 waya, carbon karfe da Monel gami waldi tare da EN NiCu-1 ko EN iCu-2 waldi sanda sauran tanadi da kuma guda kamar yadda sama sharuddan.

kula da inganci

Don tabbatar da ingancin walda, binciken hanyoyin gwaji marasa lalacewa yana nufin sarrafa inganci, kamar radiation, magnetic barbashi, ultrasonic, shigar azzakari cikin farji da sauran hanyoyin dubawa don dubawa.Hakanan ya kamata a duba duk abubuwan walda don samun lahani, kamar fashewar ƙasa, cizo, daidaitawa da shigar walda, da sauransu. A lokaci guda kuma, yakamata a bincika nau'in walda, ƙirar walda.Sai a duba duk welding na tushen don yin launin, idan kuma an sami lahani, sai a sake gyara su kafin a duba sauran walda.