Moel alloy sassa suna magance matsala guda ɗaya mai ci gaba: gazawar lalata a cikin mahallin masana'antu. Mun ga jikin bawul ɗin ruwa yana fashe bayan watanni 18 a cikin tsarin sanyaya ruwan teku. Mun maye gurbin gidajen famfo da ruwan rijiyar mai dauke da H₂ ya lalata—sau biyu a cikin shekara guda. Ayyukan haɗin gwal na Monel ba bisa ka'ida ba ne. Ana auna shi a cikin lokacin aiki, tazarar kulawa, da kuma guje wa rufewa.
Me yasa Sassan Alloy ɗin Kuɗaɗen Fiye da Ƙa'idar Alloys a Sabis na Duniya na Gaskiya
Monel alloys-musamman Monel 400 da Monel K-500 - su ne nickel-copper binaries tare da juriya na asali don rage acid, ruwan gishiri, da alkaline. Ba kamar bakin ƙarfe waɗanda ke dogaro da yadudduka na oxide ba, Monel yana tsayayya da fashe-fashe da damuwa-lalata ba tare da fina-finan saman ba. Wannan yana da mahimmanci lokacin da bawul ɗin matsa lamba yana aiki ci gaba a mashaya 350 a cikin ma'aunin ruwa na teku-ko lokacin da piston famfo silinda gidaje ke zagaye tsakanin allurar brine da bayyanar iskar gas mai tsami.
Muna gwada Monel 400 akai-akai akan bakin karfe 316 a ƙarƙashin immersion ASTM G48 ferric chloride iri ɗaya. Sakamako ya nuna babu rami bayan awanni 72 na Monel; 316 yana haɓaka ramukan bayyane a cikin sa'o'i 6. A ainihin tura filin, Monel alloy sassa sun wuce 3-5 × tsawon fiye da duplex bakin madadin madaidaicin chloride-sulfide na gama gari a cikin kayan aikin filin mai.
Amma zabin kayan abu kadai baya bada tabbacin nasara. Monel 400 shaft tare da rashin dacewa da maganin zafi yana fashe ƙarƙashin nauyin juzu'i. Monel K-500 impeller injuna tare da sawa kayan aikin carbide yana fama da ƙananan tsagewa wanda ke fara gazawar gajiya. Shi ya sa madaidaicin masana'anta ba na zaɓi ba - kashi na biyu ne na ma'aunin juriya na lalata.
Yadda Daidaitaccen Machining ke Kiyaye Mutuncin Monel
Alloys ɗin kuɗi suna aiki-tauri da sauri. Yawan ciyarwa ya yi yawa yana haifar da jujjuyawar kayan aiki da juzu'i mai girma. Yanke gudun da ba ya da yawa yana haifar da zafi mai yawa - kuma yana shafe saman saman da ke kusa, yana lalata ƙarfi. Muna amfani da dandamalin CNC masu tsauri da yawa tare da saka idanu akan kayan aiki na lokaci-lokaci don kula da mafi kyawun nauyin guntu. Misali, Tushen famfo na Monel 400 yana buƙatar ± 0.01 mm lebur a kan tazarar 420 mm. Cimma wannan yana buƙatar diyya ta thermal, in-in-process CMM tabbaci, da sarrafa zafin yanayi-ba kawai kayan aiki mai kyau ba.
Ƙarewar saman yana tasiri kai tsaye da halayen lalata. Ƙarshen Ra 3.2 μm akan Monel K-500 a cikin bawul ɗin canja wurin acid yana nuna harin da aka kai bayan watanni 14. Wannan ɓangaren da aka gama zuwa Ra 0.8 μm ya kasance cikakke a cikin watanni 36. Muna haɗa electropolishing da passivation a cikin jerin ƙarewar mu-ba azaman add-ons ba, amma azaman matakan aiki waɗanda suka dace da ka'idodin ASME BPE don hanyoyin ruwa masu mahimmanci.
Wasu na iya jayayya cewa gawawwakin cobalt suna ba da mafi kyawun juriya. Gaskiya ne-amma cobalt alloys suna sadaukar da juriya na lalata don rage mahalli. Monel yayi nasara inda duk kaddarorin biyu ke da mahimmanci: tarukan famfo da ke sarrafa ruwan teku + hydrogen sulfide, ko na'urar bututun cibiya ta winch da aka fallasa ga feshin gishiri na bakin teku da lalata injina.
Daga Samar da Kayayyaki zuwa Isar da Abun da Za'a iya ganowa
Ba duk Monel daidai yake ba. Muna samo ƙwararrun ƙwararrun Monel 400 da K-500 daga masu siyar da ASTM B164-tare da cikakken yanayin zafi har zuwa lambar ladle. Kowane tsari yana fuskantar bincike na yanayi da gwajin juzu'i kafin a fara aiki mai tsauri. Me yasa? Saboda abun ciki na carbon sama da 0.023% yana lalata weldability; sulfur sama da 0.001% yana haɓaka zafi mai zafi yayin gyaran walda.
Our ISO-compliant makaman rike da cikakken aiki: zuba jari simintin gyaran kafa ga hadaddun geometries kamar Monel nozzles, daidaici CNC juya / milling ga m-haƙuri gidaje, da zafi magani da AMS 2750. Kowane Monel gami part sami karshe dubawa ta amfani da daidaita ma'auni inji da Tantancewar comparators-tabbatar da abokin ciniki GD ba kawai.
- Bawul ɗin matsa lamba: Yarda da Sashe na VIII ASME, an gwada ruwa zuwa matsa lamba na ƙira 1.5 ×
- Gidajen famfo famfo na Piston: An tabbatar da taurin kai a duk faɗin ƙasa, flange, da saman hawa
- Injiniya abin hawa winch shafts: An gwada Ultrasonic don katsewar ƙasa
- Abubuwan da ba daidai ba: Cikakkun takaddun shaida, bayanan kula da zafi, da rahotanni masu girma da aka aika tare da kowane oda
Zaɓi Abokin Ƙaƙƙarfan Abokin Hulɗa don Ƙungiyoyin Ƙirar Mahimmancin Kuɗi
Juriya na lalata yana farawa da ƙarfe-amma yana ƙare da kisa. Dillali wanda ya adana hannun jarin Monel mashaya amma ba shi da gogewa wajen yin injina zai isar da sassa tare da saura damuwa, rashin daidaiton kwararar hatsi, ko gurɓataccen ƙasa. Kuna buƙatar ingantacciyar iyawa tare da maki AMS 5387 cobalt-nickel, gami da tushen T800, da tsarin aikin simintin simintin gyare-gyare-ba jerin kasida kawai ba.
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yana gina sassan alloy na Monel don abokan ciniki a duk faɗin Arewacin Amurka, Turai, da Kudu maso Gabashin Asiya-bangarori waɗanda ke aiki a cikin na'urori masu sarrafa ƙasa, layin sabis na acid acid, da tsarin injin ruwa na ruwa. Haɗe-haɗen tsarin su a tsaye yana sarrafa mutuncin ƙaƙƙarfan tsari, kwanciyar hankali mai girma, da ingancin saman ƙasa daga albarkatun ƙasa zuwa ɓangaren gama. Suna tabbatar da ƙirƙira da wuri, tuta rikicin GD&T kafin yanke ƙarfe, kuma suna riƙe cikakkiyar ganowa ga kowane muhimmin abu.
Lokacin da aka kashe $ 250,000 / awa da lokutan jagorar maye gurbin ya shimfiɗa makonni 12 da suka wuce, Monel alloy part yi ba game da ƙayyadaddun bayanai bane akan takarda. Yana game da abin da ke tsira - kuma yana bayarwa - ƙarƙashin matsi na gaske, ainihin sunadarai, da ainihin lokacin ƙarshe na aiki.
