Lokacin da injiniyoyi suka bayyana ƙananan yashi simintin gyaran kafa don daidaitattun sassa na ƙarfe, ba kawai zaɓin tsari ba ne - suna zaɓar anka abin dogaro. Mun ga shi da kansa: gidan famfo na ruwa ya fashe a gwajin filin saboda kamfen ɗin ya tsallake ƙirar ƙira. Wani abokin ciniki ya jinkirta ƙaddamar da makonni 11 bayan karɓar gidaje na Silinda tare da rarraba nodule na graphite mara daidaituwa - wanda ba a iya gane shi ba tare da ƙirar ƙarfe ba, amma mai mutuwa a ƙarƙashin 350-bar cyclic loading. Shi ya sa "masana'antar simintin yashi mai ƙarancin matsa lamba" ba jumlar bincike ba ce. Tace-wanda ke raba masu samar da kayayyaki waɗanda suka fahimci sarrafa ƙarfe da waɗanda ke zuba ƙarfe kawai.
Why Low Pressure Sand Casting Delivers Precision Where Gravity Fails
Simintin nauyi yana aiki don siffofi masu sauƙi. Amma lokacin da ɓangaren ku yana da sassan bangon bakin ciki kusa da manyan magudanar zafi-kamar gidan silinda na piston famfo tare da kaurin bangon 4.2 mm wanda ke jujjuyawa cikin flange na mm 68-nauyi yana haifar da tashin hankali, sanyi yana rufewa, da raguwar porosity a cikin matsananciyar damuwa. Yashi maras nauyi yana warware wannan ta hanyar amfani da sanduna 0.05-0.15 na matsewar iskar gas mai ƙayyadaddun ƙayyadaddun magudanar ruwa zuwa narkakken tafki. Wannan yana tilasta ƙarfe zuwa sama ta hanyar bututu mai hawan yumbu a cikin saurin sarrafawa (yawanci 12-18 mm/s), yana cika rami mai laushi. Sakamakon? Ƙaddamar da kai tsaye daga ƙasa zuwa sama, iskar gas kusa-sifili, da kwanciyar hankali tsakanin ± 0.25 mm akan fasali har zuwa tsayin mm 1,200.
Muna tabbatar da wannan kullun. A kan AMS 5387 cobalt alloy nozzles, ƙaramin simintin simintin yana samun 99.7% sauti a cikin gwajin ultrasonic-a kan 89% tare da nauyi. Mafi mahimmanci, yana ba da daidaituwar eutectic carbide watsawa. Wannan yana da mahimmanci saboda hanyoyin sadarwar carbide marasa daidaituwa suna haifar da lalacewa da wuri a cikin manyan hanyoyin ruwa masu ƙarfi. Abokan cinikinmu a cikin mai da iskar gas sun ba da rahoton 3.2 × tsawon sabis na rayuwa akan matosai na tushen T800 sun jefa ta wannan hanyar tare da madadin simintin saka hannun jari-babu buƙatun da ake buƙata.
Ƙarfin Ƙarfi huɗu marasa Tattaunawa a cikin Masana'antar Simintin Ƙarƙashin Yashi na Gaskiya
Kayan aikin ISO 9001 da aka ba da izini shine teburin tebur. Abin da ke raba abokan hulɗa masu shiri shine yadda suke haɗa simintin gyare-gyare tare da buƙatun ƙasa:
- Abubuwan ganowa zuwa lambar zafi: Kowane nau'i na cobalt-nickel alloy yana ɗaukar cikakkun MTRs tare da tensile, hardness, da intergranular corrosion test data-ba kawai sunadarai ba.
- In-aiki ƙarfafa saka idanu: Thermal Hoto kyamarori suna bin ci gaban gaba a ainihin lokacin; sabawa yana haifar da daidaitawar matsa lamba ta atomatik ko zubar da ciki.
- Tabbacin haɗe-haɗe na CMM: Kafin fara zubowa, muna bincika ƙirar ƙira akan CAD ta amfani da Zeiss CONTURA G2, kama kurakuran daftarin da zai haifar da lalacewar fitarwa.
- Ƙarfin gamawa na zamani: Simintin gyare-gyare suna fita daga tashar shakeout kuma suna matsawa kai tsaye zuwa 5-axis CNC machining-babu kulawa ta waje. Wannan yana kiyaye amincin datum don GD&T-mahimman fasali kamar coaxiality tsakanin fuska da hawan fuska (±0.015 mm).
Wasu na iya jayayya cewa simintin yashi ba zai dace da ƙarewar simintin saka hannun jari ba. Gaskiya-don madubi ya ƙare. Amma don saman aiki? Simintin simintin mu Ra yana tsayawa a 12.5 µm akan fuskoki masu ɗaukar nauyi na farko, yana faɗuwa zuwa 1.6 µm bayan injina. Wannan shine mafi kyau: kuma santsi yana gayyatar yunwar mai a cikin manyan aikace-aikacen zamewa kamar winch center shaft rollers.
Inda Daidaito Ya Hadu da Gaskiyar Aikace-aikacen
Yashi ƙaramin matsi yana haskakawa inda kimiyyar lissafi da aiki suka yi karo. Yi la'akari da abin hawa injiniyoyi a kan tsarin winch: tsakiyar shaft rollers suna jure haɗakar da ƙarfi, tasirin radial, da gurɓataccen gurɓataccen abu. Nadi simintin nauyi ya gaza a zagaye 14,000. Sigar ƙarancin mu - ta amfani da gyaggyara koren yashi tare da ƙari na bentonite da carbon - sun tsira da hawan keke 62,000 a cikin hanzarin gwaji. Me yasa? Adadin sanyaya da aka sarrafa ya adana 22% ƙarin ƙarin carbides na farko a cikin shimfidar ƙasa, taswirar SEM/EDS ta tabbatar.
Ko ɗauki bawul ɗin matsa lamba don tsarin injin ruwa. Abokan ciniki suna buƙatar aiki mara izini a mashaya 420. Tsarin mu yana riƙe da shimfiɗar kujerar ƙofar zuwa 0.008 mm a fadin 85 mm diamita - mai yiwuwa ne kawai saboda ƙarancin matsa lamba yana kawar da yashwar ƙura daga cikawar cikas. Muna auna kowane wurin zama tare da Taylor Hobson PGI Optics, ba kawai samfurin kuri'a ba.
Zaɓin kayan abu yana haɗu da fa'ida. Lokacin da ake yin allurai na tushen cobalt T800, ƙirar yashi na al'ada suna fashe a ƙarƙashin girgizar zafi. Muna amfani da rufin rufin da aka haɗa da zircon wanda aka rigaya zuwa 220 ° C - an inganta shi ta hanyar tarurrukan thermocouple da aka saka a cikin bangon ƙira. Wannan yana hana microfissures waɗanda suka zama wuraren farawa don fashe gajiya.
Choosing Your Low Pressure Sand Casting Factory: Look Beyond the Brochure
Yi waɗannan tambayoyi guda uku kafin sanya hannu kan PO:
- Shin za ku iya nuna mana ingantattun rahotannin kwaikwaiyo don takamaiman lissafin mu-ciki har da tsinkayar wurin raguwar rami da ingancin ciyarwa?
- Menene madaidaicin izinin izinin ku tsakanin simintin simintin gyare-gyare da ƙira na ƙarshe don abubuwan da ake buƙata duka biyu simintin gyare-gyare da kuma m GD&T?
- Ta yaya kuke tabbatar da daidaituwar ƙananan tsarin a cikin simintin gyare-gyare guda ɗaya-musamman a tsaka-tsaki tsakanin sassa masu kauri da bakin ciki?
QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. ya amsa duka ukun tare da rubuce-rubucen ladabi-ba alkawuran ba. Wurin su na Qingdao yana gudanar da simintin yashi mara ƙarfi tare da injinan CNC da kuma maganin zafi a ƙarƙashin rufin ɗaya. Babu handoffs. Babu motsi mai girma. Babu asarar ganowa. Suna bauta wa OEMs na Arewacin Amurka waɗanda ke buƙatar jikin bawul ɗin ASME B16.34, masu kera famfo na Turai waɗanda ke buƙatar simintin ƙarfe na EN 10213-G25, da masu ginin kayan aikin ma'adinai na kudu maso gabashin Asiya waɗanda ke buƙatar simintin ƙarfe mai jurewa - duk tare da horo iri ɗaya na ƙarfe.
Idan madaidaicin ƙarfe na gaba na gaba dole ne ya tsira daga matsanancin matsin lamba, babban lalacewa, ko gazawar babban sakamako, fara da a ƙananan matsi yashi simintin gyaran kafa factory wanda ke ɗaukar simintin gyare-gyare ba a matsayin mataki ba-amma a matsayin ginshiƙin amincin aiki.
