Namhlanje, ndizakusa e-Donghuan Malleable Iron Casting Co., Ltd. Masifunde ngenkqubo yokugalela isanti egqunyiweyo.
I. Ulwazi kunye nokuqonda isanti egqunyiweyo
1. Iimpawu zesanti egqunyiweyo
Inokusebenza okufanelekileyo kwamandla; i-fluidity enhle, i-molds yesanti elungiselelwe kunye ne-sand cores ine-contours ecacileyo kunye nezakhiwo ezixineneyo, ezinokuvelisa iinqununu zesanti ezinzima; iimbumba zesanti (ii-cores) zinomgangatho omhle womphezulu, kwaye ubunzima bomhlaba bunokufikelela ku-Ra = 6.3～12.5μm, Ukuchaneka kwe-dimensional kunokufikelela kwinqanaba le-CT7～CT9; i-collapsibility ilungile, kwaye ukuphosa kulula ukucoceka.
2. Ubungakanani besicelo
Isanti egqunyiweyo ingasetyenziselwa ukwenza izingundo kunye neentsimbi zesanti. Iimbumba okanye iinqununu zesanti ezigqunyiweyo zingasetyenziselwa kunye nomnye okanye kunye nezinye iimbumba zesanti (ii-cores); ayinakusetyenziselwa kuphela ukuphosa umxhuzulane wesinyithi okanye ukuphoswa koxinzelelo oluphantsi, kodwa ingasetyenziselwa ukuphosa ngentsimbi efakwe isanti kunye ne-thermal centrifugal casting; ingasetyenziselwa kuphela ukuveliswa kwesinyithi kunye ne-non-ferrous alloy castings, kodwa kunye nokuveliswa kweentsimbi zensimbi.
II. Ukulungiswa kwesanti egqunyiweyo
1. Ukuqulunqwa kwesanti egqunyiweyo
Ngokuqhelekileyo yenziwe ngezinto eziphikisayo, izibophelelo, ii-agent zokunyanga, izithambiso kunye nezongezo ezikhethekileyo.
2. Inkqubo yokuvelisa isanti egqunyiweyo
Inkqubo yokulungiselela isanti egqunyiweyo ikakhulu ibandakanya ukutyabeka okubandayo, ukugquma okufudumeleyo, kunye nokwaleka kwe-thermal. Okwangoku, phantse yonke imveliso yesanti egqunyiweyo isebenzisa indlela yokwambathisa eshushu.
3. Iintlobo zemveliso eziphambili zesanti ezigqunyiweyo
(1) Isanti eqhelekileyo egqunywe yintlabathi egqunywe ngokwesithethe
(2) Amandla aphezulu kunye nesanti egqunywe ngegesi ephantsi
Iimpawu: amandla aphezulu, ukwanda okuphantsi, igesi ephantsi, igesi ecothayo, i-anti-oxidation
(3) Ukumelana nobushushu obuphezulu (uhlobo) isanti egqunyiweyo (uhlobo lwe-ND)
Iimpawu: ukumelana nobushushu obuphezulu, amandla aphezulu, ukwandiswa okuphantsi, igesi ephantsi, igesi ecothayo, ukudilika lula, i-anti-oxidation
(4) Isanti egutyungelwe lula
Inamandla alungileyo kunye nokusebenza okuncomekayo kokuwa kweqondo lobushushu eliphantsi, elilungele ukuveliswa kweentsimbi ezingenayo intsimbi.
(5) Ezinye iimfuno ezizodwa ezigqunywe isanti.
III. Inkqubo ephambili yokwenza i-core kunye nesanti edibeneyo
Ubushushu bokufudumala yi-200-300 ℃, ixesha lokunyanga liyi-30-150s, kunye noxinzelelo lokudubula kwesanti yi-0.15-0.60MPa. Kwiindawo zesanti ezinemilo elula kunye nesanti egqunywe nge-fluidity elungileyo, uxinzelelo oluphantsi lokudubula lunokukhethwa. Kwiindawo ezincinci zesanti, ubushushu obuphantsi bokufudumeza bunokukhethwa. Xa ubushushu bokufudumala buphantsi, ixesha lokunyanga linokwandiswa ngokufanelekileyo. Intlaka esetyenziswa kwisanti egqunyiweyo yiphenolic resin. Iinzuzo zenkqubo yokwenza i-core: ukusebenza kwamandla afanelekileyo; ukumanzi kakuhle; umgangatho omhle womphezulu wesiseko sesanti (Ra = 6.3-12.5μm); ukuxhathisa okuqinileyo komswakama wesiseko sesanti; ukubola okulungileyo kunye nokucocwa lula kwee-castings.
1. Ubushushu (umngundo).
Iqondo lobushushu lokungunda yenye yezinto eziphambili ezichaphazela ubungqingqwa kunye nokomelela kweqokobhe leqokobhe, elilawulwa ngokubanzi kwi-220～260℃
2. Uxinzelelo lokudubula kwesanti kunye nexesha
Ixesha lokudubula kwesanti lilawulwa ngokubanzi ngo-3～10s. Ukuba ixesha lifutshane kakhulu, isikhunta sesanti (ingundoqo) asikwazi ukubunjwa. Uxinzelelo lokudubula kwesanti ngokubanzi malunga ne-0.6MPa; xa uxinzelelo luphantsi kakhulu, kulula ukubangela ukudubula okunganeleyo okanye ukukhululeka. Ixesha lokuqina: Ubude bexesha lokuqina luxhomekeke ubukhulu becala lokubumba isanti (undoqo) kunye nobushushu bomngundo, ngokubanzi malunga ne-60-120s.
Okwangoku, iimveliso zethu eziphambili zizifakelo zombhobho wentsimbi, iziqhoboshi zetyhubhu, izihlanganisi zesakhelo, ukudityaniswa kwethumbu lomoya, ibholiti ephindwe kabini, ibholiti enye, ukudityaniswa kwecamlock, ukudityaniswa okukhawulezileyo, umzimba we-conduit, iingono ze-KC, i-hose menders kunye namakhulu amakhulu iimveliso ukuba ukhethe. Wamkelekile kwi-Donghuan Malleable Iron casting xa unemibuzo, siya kunyaniseka kwinkonzo yakho.
Ixesha lokuposa: Dec-22-2021