stelite kashi 21

Sassan Stelite 21 sun kasa-ba daga ƙira mara kyau ba, amma daga dabarar maye gurbin da ba daidai ba. Mun ga taron famfo na ruwa guda uku sun kama a cikin sa'o'i 48 na shigarwa saboda maye gurbin stelite kashi 21 wanda ya dace da ma'auni na ƙididdiga kawai, ba kwanciyar hankali microstructure ko rarraba carbide. Wannan ba kuskuren inji bane. gazawar tsarin kayan aiki ne.

Me yasa Stellate 21 Maye gurbin Ba kawai "Musanya da Tafi ba"

Stellite 21 shine cobalt-chromium-tungsten gami da taurare ta eutectic carbides-M₇C₃ kuma M₂₃C₆- wanda ke ba da matsananciyar juriya ga galling, abrasion, da yanayin zafi mai zafi. Amma aikin sa yana rataye akan masu canji guda huɗu waɗanda ba za'a iya sasantawa ba: ƙayyadaddun ƙima yayin simintin gyare-gyare, zagayowar yanayin zafi bayan walda, ci gaban carbide a duk faɗin lalacewa, da haɗin haɗin ƙarfe na ƙarfe a cikin sanye ko mai rufi.

A cikin tura kayan aiki na zahiri, muna auna matakan taurin kai sama da 120 HV a cikin zurfin 0.5 mm cikin maye gurbin da ba daidai ba. Wannan shine dalilin da ya sa kashi 73% na gazawar da ba a kai ba muna bincikar gano asali zuwa tushen tushe guda ɗaya: an kera ɓangaren daga kayan aikin mashaya maimakon ingantattun simintin gyaran kafa. Kayan aikin da aka yi ba shi da madaidaicin hanyar sadarwar carbide da ake buƙata don dorewar juriyar ɓarna a cikin famfunan slurry ko kujerun bawul.

AMS 5387 yana ƙayyadaddun ƙaramar ƙaramar ƙarar carbide (22-28%), abun ciki na chromium (27-31%), da kewayon tungsten (3.5-5.5%). Duk da haka yawancin masu ba da kayayyaki suna jigilar sassan da aka ba da takaddun shaida zuwa AMS 5387 yayin da suke isar da ainihin sinadarai a ƙarshen haƙuri - mai yarda da sinadarai, an daidaita aikin. Muna tabbatar da kowane tsari tare da OES spectroscopy da taswirar sassan SEM-EDS kafin saki.

Ƙa'idar Maye gurbin Mataki-Hudu Wanda ke Hana Ƙarshen Lokaci mai tsada

Injiniyoyin filin mu sun haɓaka wannan ƙa'idar bayan sun goyi bayan maye gurbin manyan kayan sawa guda 142 a cikin raka'o'in fashewar filin mai, winches na ruwa, da famfunan piston ma'adinai. Yana aiki saboda yana ɗaukar maye gurbin azaman aikin haɗakarwa - ba taron sayayya ba.

• Mataki na 1: Interface Audit - Auna taurin substrate, rashin ƙarfi na sama (Ra ≤ 0.8 µm), da sauran bayanan damuwa. Stellite 21 overlays yana lalata idan taurin substrate ya wuce 35 HRC ba tare da buffer nickel interlayer ba.
• Mataki na 2: Tabbatar da Geometry - Tabbatar da radiyo mai mahimmanci, kusurwoyin chamfer, da shimfidar ƙasa mai ɗaukar nauyi ta amfani da injunan auna daidaitawa. Ragewar 0.015 mm a radius wurin zama yana ƙara matsa lamba ta 40% a cikin bawul ɗin taimako na matsa lamba.
• Mataki na 3: Ƙarfe Match - Tabbatar da ilimin halittar carbide ta hanyar aikin ƙarfe. Tsarin da aka yarda da shi yana nuna ci gaba, M₇C₃ cibiyoyin sadarwa-ba tsibiran keɓe ba ko rarrabuwar dendrites.
• Mataki na 4: Ƙonewar Aiki - Gudu a ƙarƙashin nauyin sarrafawa na mintuna 30 a 60% max wanda aka kimanta kafin hawan sama. Kula da haɓakar zafin jiki a duk faɗin abin dubawa; > 12°C delta siginar rashin isassun haɗakar zafi.

Lokacin da Madaidaicin Sassan Katalogi Ya Faɗuwa Gajere-kuma Abin da Za'a Yi A maimakon haka

Wasu na iya yin gardama cewa sassan stelite 21 na kashe-da-shelf suna rage lokacin gubar da farashi. Koyaya, daidaitattun abubuwan kasidar ba sa yin daidai da madaidaicin tarihin zafin jiki, daidaitawar carbide, ko yankin canjin mu'amala da ake buƙata don aikace-aikacen manufa mai mahimmanci. Mun maye gurbin bututun ƙarfe na cobalt alloy wanda ya gaza a cikin famfon allurar sinadari mai ƙarfi inda sashin OEM ya ɗauki awanni 87. Sauyawa na farko-wanda aka samo daga mai samar da kayayyaki-ya kasa a cikin sa'o'i 19. Tushen dalili? Rarrabuwar Carbide a kan tip saboda rashin ingantaccen shugabanci yayin yin simintin gyare-gyare.

Mun warware shi ta hanyar canzawa zuwa tsarin simintin simintin gyare-gyare na al'ada: simintin saka hannun jari tare da madaidaicin ƙirar ƙira, sannan haɓakawar HIP da madaidaicin CNC yana kunna lathes mai yawan axis. Sashe na ƙarshe ya ba da sa'o'i 412 na lokacin gudu-4.7 × rayuwar OEM. Maɓallai masu ba da damar: daidaitawar hatsi daidai da hanyar gudana, ci gaban carbide an tabbatar da shi ta hanyar duban micro-CT, da gamawar saman da aka riƙe zuwa Ra 0.2 µm akan saman rufewa.

Wannan ba ka'idar ba ce. Yana da maimaitawa. Kuma yana buƙatar iko akan cikakken sarkar darajar - daga albarkatun sinadarai mai narkewa ta hanyar dubawa ta ƙarshe. Wannan shine dalilin da ya sa kayan aikinmu ke kula da simintin gyare-gyaren ISO, injina, da ayyukan awo a ƙarƙashin rufin ɗaya. Babu handoffs. Babu gibi na dubawa.

Zaɓan Abokin Hulɗa na Stelite 21: Tace-Tace Ba-Tattaunawa Uku

Idan aikace-aikacen ku ya ƙunshi matsi sama da mashaya 350, yanayin zafi sama da 400°C, ko kafofin watsa labarai masu lalata da>15% abun ciki mai ƙarfi, tsallake jerin abubuwan dubawa. Aiwatar da waɗannan masu tacewa maimakon:

1. Shin suna yin nazarin OES na cikin gida da SEM-EDS? Idan eh, nemi samfurin rahotannin da ke nuna gano lokaci na carbide-ba kawai abun da ke ciki ba.
2. Shin za su iya rubuta tsarin hawan zafin jiki ta ASTM E290? Stelite 21 yana buƙatar madaidaicin lokutan jiƙa a 1080°C ± 10°C. Maɓallin ± 25°C motsi na rushewar motsin motsin carbide ba tare da juyowa ba.
3. Shin suna riƙe da cikakken abin ganowa zuwa ainihin narkar da yawa? Abun ganowa ya haɗa da binciken ladle, log ɗin simintin simintin gyare-gyare, da taswirar taurin aikin injin-ba kawai takardar shedar yarda ba.

QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yana aiki da duk filtata uku akan kowane sashe na stelite 21 jigilar kaya. Layin samar da su ya haɗu da AMS 5387 mai jituwa cobalt alloy narkewa, simintin saka hannun jari a tsaye, ƙirar CNC mai axis guda biyar, da tabbacin GD&T na tushen CMM-duk an rubuta su tare da cikakkun bayanan dijital. Ba sa sayar da sassa. Suna ba da tsinkayar lalacewa-rayuwa.

Tunani Na Ƙarshe: Sauyawa Kwangilar Ayyuka ce

A stelite kashi 21 ba abin amfani ba ne. Kwangilar aiki ce da aka rubuta cikin cobalt, chromium, da tungsten. Kowane micron na daidaitawar carbide, kowane digiri na kula da zafi, kowane decibel na mashin ɗin da ke damun girgiza. Zaɓi abokan hulɗa waɗanda ke ɗaukar maye gurbin azaman injiniyan ƙarfe-ba dabaru ba.

Duba gaba: tsarin sarrafa kayan aikin injina, AI-kore ilimin halittar halittar carbide, da ingancin tagwayen dijital na bayanan martaba za su ayyana ƙarni na gaba na ingantaccen kayan sawa. Fara da dama stelite kashi 21-yau.