Ndechipi Chinyorwa Chinowanzo Kushandiswa kune Centrifugal Pump Bearings?
Zvinhu zvinotakura zvinoshandiswa mumapombi ecentrifugal zvinonyanya kukamurwa kuva mapoka maviri: zvinhu zvesimbi uye zvisiri zvesimbi.
Metallic Material
Zvishandiso zvesimbi zvinowanzoshandiswa zvesimbi zvekutsvedza mabhengi zvinosanganisira masimbi anotakura (anozivikanwawo seBabbitt alloys kana machena alloys), kupfeka-resistant cast iron, copper-based uye aluminium-based alloys.
1. Bearing Alloy
Iwo makuru alloy zvikamu zvekubereka alloys (inozivikanwawo seBabbitt alloys kana machena alloys) itin, lead, antimony, mhangura, antimony, uye mhangura, ayo anoshandiswa kuvandudza kusimba uye kuoma kweiyo alloy. Zvizhinji zvearoyi maaroyi zvinhu zvine yakaderera kunyungudika, saka akakodzera mamiriro ekushanda ari pasi pe150 ° C.
2. Copper-based Alloy
Copper-based alloys ane yakakwirira yekupisa conductivity uye zviri nani kupfeka kuramba kupfuura simbi. Uye iyo mhangura-based alloy ine machinability yakanaka uye lubricity, uye rusvingo rwayo rwomukati runogona kupedzwa, uye inosangana nechepamusoro peshaft.
Zvisiri-simbi Material
1. PTFE
Iine yakanaka self-lubricating properties uye yakakwirira yekupisa kugadzikana. Iko friction coefficient idiki, haitore mvura, haina kunamira, haibatike moto, uye inogona kushandiswa pasi pe -180 ~ 250 ° C. Asi pane zvakare zvazvakaipira senge hombe mutsara wekuwedzera coefficient, kushomeka kwema dimensional kugadzikana, uye kushomeka kwemafuta conductivity. Kuti ivandudze kushanda kwayo, inogona kuzadzwa nekusimbiswa nesimbi particles, fibers, graphite uye inorganic substances.
2. Graphite
Icho chinhu chakanaka chekuzvizora, uye nekuti chiri nyore kugadzirisa, uye kana ichinyanya kuvhuvhuta, iyo inotsvedzerera, saka ndiyo chinhu chesarudzo chekutakura. Nekudaro, zvimiro zvayo zvemuchina hazvina kunaka, uye kupikisa kwayo uye kutakura mutoro kwakashata, saka inokodzera chete nguva dzekutakura mwenje. Kuti uvandudze maitiro ayo emuchina, mamwe masimbi ane fusible ane yakanaka kupfeka kuramba anowanzo kuisirwa. Izvo zvinowanzo shandiswa kupinza zvinhu ndeye Babbitt alloy, copper alloy uye antimony alloy.
3. Rubha
Iyo polymer yakagadzirwa elastomer, ine yakanaka elasticity uye kuvhunduka kunyura. Zvisinei, kupisa kwayo kunopisa kwakashata, kushandiswa kwakaoma, kutonhora kwekushanda kunobvumirwa kuri pasi pe65 ° C, uye inoda mvura inotenderera kuti igare uye inotonhorera nguva dzose, saka haiwanzoshandiswa.
4. Carbide
Iine nhevedzano yezvivakwa zvakanakisa senge kuomarara kwakanyanya, kupfeka kuramba, simba rakanaka uye kuomarara, kudzivirira kupisa, uye kushomeka kwemarara. Naizvozvo, mabearings anotsvedza akagadzirwa nawo ane hunyanzvi hwepamusoro, kushanda kwakagadzikana, kuomarara kwepamusoro, kusimba kwakanaka, uye kusimba, asi anodhura.
5. SiC
Irwo rudzi rutsva rwezvakagadzirwa inorganic non-metallic material. Kuoma kwacho kwakaderera kune kwedhaimondi. Iyo ine yakanaka yemakemikari corrosion resistance, kupfeka kuramba, kukwira kwekushisa kwepamusoro, kusimba kwemagetsi, kunaka kwekuzvinyudza, kukwira kwekushisa kwakanyanya, kukwesha kudiki, kukwirisa kwekushisa, uye kuderera kwekuwedzera kwemafuta. Inogona kushandiswa zvakanyanya Inoshandiswa mupetroleum, metallurgy, makemikari indasitiri, muchina, aerospace uye simba renyukireya uye mamwe minda, inowanzoshandiswa senge friction pair material ye sliding bearings uye mechanical seals.