Lokacin da bawul ɗin hydraulic ya kasa ƙarƙashin matsa lamba 350, da wuya ƙirar ƙirar ke da laifi - shine Stelite bawul ball da wurin zama sanye da rashin daidaituwa, micro-cracking, ko rasa ingancin ƙarfe bayan keken keke 8,000 kawai. Mun gan shi a cikin manifolds fanfo na teku, ma'adinai piston bawul, da kuma high-cycle dosing tsarin sinadaran: daidaitattun kujerun bakin karfe suna lalacewa da sauri. Abubuwan haɗin gwiwar Stelite na tushen Cobalt ba sa. Amma ba kowa ba Stelite bawul ball da wurin zama factory yana ba da daidaiton tauri, rarraba carbide, ko maimaita juzu'i a cikin batches-musamman lokacin da lissafin lissafi ya haɗa da maɗaurin hatimi, ƙwanƙwasawa, ko musaya-hardness biyu.
Me yasa Stellite Ba Kawai "Harfin Karfe ba" - Zaɓin Matsayin Tsari ne
Stelite ba abu ɗaya bane. Yana da iyali-6, 12, 21, 25-tare da cobalt a matsayin kashin baya (40-65%), chromium don juriya na iskar shaka, tungsten don zafi mai zafi, da carbon don samar da M.7C3 kuma M23C6 carbides. AMS 5387 (Stellite 6) ya buga 38-44 HRC as-cast amma yana buƙatar madaidaicin maganin zafi don gujewa samuwar lokaci na sigma. T800 gami yana ƙara nickel don juriyar girgiza zafin zafi-mahimmanci a cikin bawul ɗin dawo da mai mai tururi. Amma duk da haka taurin kai kaɗai ke batar. Wurin zama na Stellite tare da raunin tarwatsewar carbide a ƙarƙashin tasirin tasiri. Ƙwallon da ke da ragowar simintin gyare-gyare yana zubewa a 120°C. Wannan shine dalilin da ya sa aikin aiki ya dogara da damar haɗin kai guda uku: ƙwarewar gami, sarrafa tsari, da horon awo-ba kawai tushen albarkatun ƙasa ba.
Abin da ke raba Dogaran Ƙwallon Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Ƙwararrun Wuta Daga Saura
Mun bincika sama da masu samar da kayayyaki 30 waɗanda ke da'awar ƙwarewar Stella. Yawancin sun gaza a ɗaya daga cikin maki uku:
- Material gano gibin: Takaddun shaida suna lissafin "AMS 5387" amma a bar takamaiman takamaiman rahotanni, girman hatsi, ko sakamakon gwajin lalata na intergranular.
- Lalacewar injina: Niƙa mai ƙarfi ba tare da sanyaya cryogenic yana haifar da 20-μm farin Layer-micro-cracked, untempered, kuma mai yiwuwa ga spalling karkashin cyclic load.
- Rufe mashigin geometry: Shirye-shiryen CNC suna ɗaukar cikakkiyar simintin gyare-gyare. Simintin saka hannun jari na gaske suna da ± 0.3 mm bambancin kauri na bango. Ba tare da biyan diyya ta hanyar kayan aiki ba, ƙungiyar hatimi ta ƙarshe ta karkata> 0.05 mm daga kusurwa mara kyau - ya isa ya yanke rayuwar hatimi da kashi 60%.
A QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD., muna rufe waɗannan gibin a tsaye. Kayan aikin mu mai yarda da ISO yana ɗaukar cikakken sarkar: vacuum-narkewar cobalt alloy ingots → daidaitaccen saka hannun jari → ƙwaƙƙwaran mashin ɗin da aka kawar da damuwa → maganin zafi mai ƙarfi carbide → kasan kwane-kwane guda biyar → CMM-tabbatar da siginar bandeji. Kowane ball bawul na Stelite yana ɗauke da ID na musamman da ke da alaƙa da narkakken log ɗin sa, jefa rahoton X-ray, da taswirar tarkace. Babu wani tsari da ya bar ba tare da tabbatar da taurin Rockwell C a cikin yankuna uku ba - kuma babu jiragen ruwa ba tare da gwajin ruwan helium ba a matsa lamba na 1.5 ×.
Ayyukan Duniya na Gaskiya: Inda Madaidaicin Haɗu da Aikace-aikacen
Ɗaya daga cikin abokin ciniki na Tekun Arewa ya maye gurbin kujerar Stelite 21 na mai fafatawa a cikin famfo mai jujjuyawar laka bayan sabis na sa'o'i 4,200. Ramin cavitation ya keta Layer na ƙasa. Sun canza zuwa wurin zama na AMS 5387 - geometry iri ɗaya, gidaje iri ɗaya - amma tare da tazarar carbide (wanda aka auna ta hanyar SEM), ƙananan abun ciki na oxygen (<120 ppm), da kuma bayan-machining nitride diffusion Layer. Sakamako: Sa'o'i 14,700 kafin kulawar da aka tsara. Ba wai don ya fi “wuya ba,” amma saboda microstructure ya yi tsayayya da ɓoyayyen ɓoyayyen ɓoyayyiyar ɓarna * da * rugujewar tururi na wucin gadi.
Wani shari'ar: wani shuka sinadarai na kudu maso gabashin Asiya yana buƙatar ƙwallan T800 mara kyau don bawul ɗin metering diaphragm mai sarrafa 98% sulfuric acid a 85°C. Daidaitaccen Stellite 6 ya lalace a wurin mai tushe. Mun sake fasalin ƙwallon ƙwallon tare da hular T800 mai yaduwa akan ainihin 17-4PH-wanda aka yi a cikin saiti ɗaya don kawar da haɗin gwiwar galvanic. Sashin ya wuce gwajin nutsewar awa 1,000 na ASTM G28A tare da asarar nauyi. Wannan ba a kashe-kashe ba. Geometry ne ke tafiyar da ƙarfe.
Zaɓan Ƙwallon Bawul ɗin ku da Kamfanin Kujerun Kujerunku — Yi Tambayoyin
Kafin shiga NDA, tambayi mai kawo kaya:
- Shin za ku iya raba rahoto na kwanan nan don AMS 5387- yana nuna ainihin matakan W, C, da Si tare da iyakoki?
- Kuna auna juzu'in juzu'i na carbide (ta hanyar nazarin hoto) akan kowane yawa-ko kawai taurin?
- Ta yaya kuke ramawa don raguwar simintin gyare-gyare a cikin shirin ku na CNC? Kuna amfani da bayanan CT-scan don daidaita hanyoyin kayan aiki?
- Menene madaidaicin ƙyalli na saman ku (Ra) akan rukunin hatimi - kuma ta yaya kuke tabbatar da shi da kyau, ba kawai stylus ba?
- Za a iya ba da cikakkiyar ganowa har zuwa lambar ƙuri'ar lantarki da aka yi amfani da ita a cikin farfaɗowar baka?
Idan amsoshi ba su da fa'ida, jinkiri, ko nuni ga ƙa'idodi na gabaɗaya maimakon ƙayyadaddun kira na GD&T na zane-ku tafi. Abubuwan da aka gyara na Stelite ba kayayyaki ba ne. Su ne musaya masu mahimmanci na tsarin inda kuskuren 0.01 mm ke kashe lokaci, ba daloli ba.
Ga injiniyoyi masu ƙayyadaddun hatimin aiki mai girma a cikin yanayi mara kyau, da Stelite bawul ball da wurin zama factory Dole ne ka zaɓa dole ne ka ɗauki ƙarfe, injina, da awoyi a matsayin lamuran da ba za a iya raba su ba—ba matakai na jere ba. QINGDAO QIANGSENYUAN TECHNOLOGY CO., LTD. yana gina wannan haɗin kai cikin aikin sa na yau da kullun. Mayar da hankalinsa ya kasance kunkuntar: warware lalacewa, lalata, da gazawar gajiya a cikin sarrafa ruwa mai mahimmanci-farawa da abin da ke faruwa inda ƙarfe ya haɗu da ƙarfe, zagayowar bayan zagayowar, matsa lamba bayan matsa lamba. Lokaci na gaba da bawul ya gaza da wuri, duba bayan alamar. Yi nazarin rabon carbide na wurin zama. A nan ne ƙarfin ƙarfin gaske ya fara.
