Iivalvu zentsimbi ezixutyiweyo xa kuthelekiswa neevalvu zentsimbi ezixutyiweyo

1. Yintoni i-Ductile Iron?

Intsimbi ethambileyo luhlobo lwentsimbi eyomeleleyo kunye nokuguquguquka xa ithelekiswa nentsimbi yesintu. Oku kufezekiswa ngokongeza izinto ezincinci ezifana ne-magnesium kwintsimbi ngexesha lenkqubo yokunyibilikisa. Isiphumo sisixhobo esinokumelana noxinzelelo oluphezulu ngaphandle kokuqhekeka, nto leyo eyenza ukuba ilungele ukusetyenziswa apho ukumelana nempembelelo kubalulekile.

2. Yintoni iCast Iron?

Kwelinye icala, isinyithi esibunjiweyo yi-alloy yesinyithi, ikhabhoni, kunye ne-silicon. Ngokwesiqhelo, ibuthathaka ngakumbi kunesinyithi esibunjiweyo kwaye yaziwa ngeempawu zayo ezintle zokubumba kunye nokumelana nokuguguleka. Nangona kunjalo, ayinalo inqanaba elifanayo lokuqina, okunokubangela ukuba kubekho imingxunya phantsi koxinzelelo olukhulu okanye ukuchatshazelwa.

3. Ziziphi iiMpawu eziPhambili phakathi kweeValve zeNsimbi zeDuctile kunye neeValve zeNsimbi zeCast?

Umahluko phakathi kweevalvu zesinyithi ezithambileyo kunye neevalvu zesinyithi eziphosiweyo mkhulu kakhulu. Nazi iingongoma ezibalulekileyo ekufuneka ziqwalaselwe:

Amandla kunye nokuguquguquka:Iivalvu zentsimbi ezithambileyo zinamandla aphezulu kwaye zinokuguquguquka ngenxa yenkqubo yazo yokwenziwa. Oku kuzenza zilungele ukusetyenziswa koxinzelelo oluphezulu kunye neendawo ezinemithwalo eguquguqukayo.

Ukumelana nokugqwala:Intsimbi ethambileyo inokumelana nokugqwala ngcono xa igqunywe ngokwaneleyo. Intsimbi ethambileyo isengozini enkulu yokugqwala, nto leyo enokunciphisa ubomi bayo, ingakumbi kwiindawo ezimanzi okanye ezifumileyo.

Ubunzima:Iivalvu zentsimbi ezithambileyo zihlala zikhaphukhaphu kuneevalvu zentsimbi ezibunjiweyo ezinobukhulu obufanayo. Oku kungenza ukufakwa kube lula kwaye kunciphise iindleko zokuthunyelwa kwabavelisi.

Ixabiso:Ngokubanzi, iivalvu zentsimbi ezithambileyo zibiza kakhulu ekuqaleni ngenxa yeempawu zezinto ezisetyenzisiweyo eziphuculweyo. Nangona kunjalo, ukuqina okuphuculweyo kunokwenza ukuba zingabizi kakhulu ekuhambeni kwexesha.

Izicelo:Iivalvu zentsimbi ezicociweyo zihlala zisetyenziswa kwiinkqubo zamanzi kunye namanzi amdaka kamasipala nakwiinkqubo zemizi-mveliso, ngelixa iivalvu zentsimbi ezicociweyo zilungele ngakumbi iinkqubo ezinoxinzelelo oluphantsi kunye nokusetyenziswa kwemibhobho yangaphakathi. 

4. Yintoni omele uyikhethe: Iivalvu zentsimbi ezithambileyo okanye iivalvu zentsimbi eziphoswe ngentsimbi?

Ukukhetha phakathi kwe-ductile iron kunye neevalvu zesinyithi eziphosweyo kuxhomekeke kakhulu kwiimfuno zakho zesicelo. Ukuba ufuna ivalvu enokumelana noxinzelelo oluphezulu kwaye inokumelana nempembelelo, i-ductile iron isenokuba lolona khetho lungcono. Kwizicelo apho ixabiso liyinkxalabo ephambili kwaye iimfuno ziphantsi, i-cast iron inokwanela.

5. Yeyiphi engabizi kakhulu, isinyithi esithambileyo okanye isinyithi esityhidiweyo?

Isinyithi esitshisiweyo ngokubanzi sinoqoqosho oluphezulu kunesinyithi esithambileyo phantsi kweemeko zokusebenza eziqhelekileyo. Oku kungenxa yokuba inkqubo yokuvelisa isinyithi esitshisiweyo ikhulile kwaye ilula, akukho mfuneko yokongeza ii-arhente ezifaka ii-nodularizing (ezifana ne-magnesium) ukuze kulungiswe i-spheroidizing, kwaye iindleko zezinto eziluhlaza kunye neendleko zokuvelisa ziphantsi. Nangona kunjalo, olu qoqosho luza ngenxa yamandla, ukuqina, kunye nokumelana nempembelelo—isinyithi esitshisiweyo sibuthathaka kwaye sinomlinganiselo ophantsi woxinzelelo. Ngokwahlukileyo koko, nangona isinyithi esitshisiweyo sibiza kakhulu ngeyunithi nganye, amandla aso aphezulu kunye nokumelana nokuqhekeka okugqwesileyo kuthetha ukuba sinokuyilwa ngobukhulu bodonga obuncinci kwaye kwezinye iimeko sinciphise ubunzima ngokubanzi. Ukusuka kwimbono epheleleyo yomjikelo wobomi, iivalvu zesinyithi esitshisiweyo zihlala zinciphisa iindleko zokugcina nokutshintsha kamva ngenxa yokhuseleko lwazo oluphezulu, ukuthembeka, kunye nobomi benkonzo ende. Ke ngoko, ukhetho kufuneka lulinganise iindleko zokuthenga zexesha elifutshane kunye neenzuzo zokusetyenziswa kwexesha elide: kwiimeko ezingezizo ezibalulekileyo ezinoxinzelelo oluzinzileyo kunye neemeko zokusebenza ezithambileyo, isinyithi esitshisiweyo ngokungathandabuzekiyo lukhetho olungabizi kakhulu; ngelixa kwiimeko ezinoxinzelelo oluphezulu, ukungcangcazela, okanye iimfuno zokhuseleko, utyalo-mali olongezelelweyo kwisinyithi esitshisiweyo lufanele imali.

6. Isiphelo

I-TWSluphawu lwevalvu oludumileyo eTianjin. Uluhlu lwemveliso yalo lugubungelaiivalvu zebhabhathane, iivalvu zesango, iivalvu zokujonga, njl. Xa ukhetha ivalvu, ukuba iimeko zokusebenza ziphezulu kwaye iimfuno zokumelana nokuqhekeka ziphezulu, iivalvu zesinyithi ezithambileyo ze-TWS zinokukhethwa; ukuba iimeko zokusebenza zithambile kwaye uhlahlo lwabiwo-mali lulinganiselwe, iivalvu zayo zesinyithi ezibunjiweyo zinoqoqosho oluphezulu.