I-corrosion yenye yezona zinto zibalulekileyo ezibangelaivalveUmonakalo. Ke ngoko, ngaphakathiivalveUkukhuselwa, i-valve anti-colosion ngumcimbi obalulekileyo ekufuneka uyiqwalasele.
IvalveIfomu ye-corrosion
I-corrosion yezinyithi ibangelwa ikakhulu kukubona iikhemikhali kunye ne-electrochemical Sormosion, kunye nokungabikho kwezinto ezingezizo ezingezizo zibangelwa yizenzo ngqo zekhemikhali.
1. I-Corrosion yamakhamami
Ngaphantsi kwemeko apho akukho kwangoku ivelisiwe, iphakathi ephakathi iphinda isebenze ngokuthe ngqo ngesinyithi kwaye itshabalalise, njengokucofa kwentsimbi yentsimbi yerhasi eyomileyo kunye nesisombululo esingengowomileyo.
I-2. I-Galvanic corrosion
Isinyithi sinxibelelana ne-electrolyte, oko kukhokelela ekuhambeni kwee-elektroni, ezibangela ukuba zonakaliswe yisenzo se-elektroniki, yeyona ndlela iphambili yokulungela.
Isisombululo esiqhelekileyo se-Acid, isisombululo se-quosmossion, i-interrosion yomhlaba, i-micrososion yolwandle, i-rorosion yolwandle, ikhulisa i-corrosion yentsimbi, njl njl. I-Electrochemical Sorrosion ayikho kuphela phakathi kwezinto ezimbini ezinokudlala indima yekhemikhali, kodwa ikwavelisa umahluko weoksijini, umahluko omncinci kwisakhiwo, njl., Kwaye ifumana amandla okuzila, ukuze inyibiliki ibe ngamandla aphantsi kunye nendawo yeplate eyomileyo ilahlekile.
I-Valve Sorrosion Inqanaba
Ireyithi yokucalula inokwahlulwa ngokwamabakala amathandathu:
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Amanyathelo alithoba Anti-Colosion
I-1. Khetha izixhobo ezinganyangekiyo ezichasene nokunganyangekiyo ngokwesiqhelo
Kwimveliso yokwenene, ukuvela kwephakathi kunzima kakhulu, nokuba i-valve isetyenziswe kwiphakathi enye iyafana, uxinzelelo, ubushushu, kunye noxinzelelo lwe-Preimu lwahlukile, kwaye i-composion yendawo ye-intanethi yayo hayi okufanayo. Kuyo yonke i-10 ° C inyuswe amaqondo obushushu aphakathi, inqanaba lokunyanzelwa linyuka malunga ne-1 ~ 3 amaxesha ama-3.
Ugxininiso oluphakathi lunempembelelo enkulu ekubonakalisweni kwezinto ze-valve, njengokukhokelwa kwi-sulfuric acid nge-SulFuric Acid, kwaye ukugxininiswa kuncinci kakhulu, kwaye xa usongelelo lunyuka kakhulu. I-Carbon Steel, ngokuchaseneyo, inesona simo sengqondo esibi kakhulu xa i-SulFuric ocid imalunga ne-50%, kwaye xa uxinzelelo lunyuke kakhulu. Umzekelo, i-aluminium ivele kakhulu kwi-witric acid egxile kwi-Acid engaphezulu kwe-80%, kodwa inoxanduva olusezantsi lwe-nitric acid, kwaye intsimbi engenasimo inyangeka kakhulu kwi-hilute acid, kodwa iyakhula ngaphakathi ngaphezulu kwe-95% ye-witric acid ye-witric.
Kule mizekelo ingentla, inokubonwa ukuba izinto ezichanekileyo zeVove zisekwe kwimeko ethile, zihlalutya izinto ezahlukeneyo ezichaphazela i-interrosion, kwaye zikhetha izixhobo ezifanelekileyo ze-anti-corrosion.
2. Sebenzisa izixhobo ezingezizo
Ukunganyangeki kwengqondo engacacanga kubaluleke kakhulu, lo gama nje ubushushu kunye ne-valve ihlangabezana neemfuno zezixhobo ezingezizo ezingezizo, kodwa zinokuyisombulula ingxaki ye-corosion, kodwa ikwandisisa iintsimbi ezixabisekileyo. I-Valve Power, i-bonnet, indawo yokutywina, indawo yokutywina kunye nezinye izinto eziqhelekileyo ezisetyenziswayo zenziwa.
Iiplasitiki ezinje nge-ptfe kunye ne-pollorided polyer, kunye nerabha yendalo, irabha ye-raber kunye nezinye iirubnet zisetyenziselwa i-bonnet ye-valnet ye-valnet yentsimbi kunye nentsimbi ye-carbon. Ayikokuqinisekisa ukomelela kwevalve, kodwa iqinisekisa ukuba ivalve ayinakwenziwa.
Kule mihla, ngakumbi iiplasitiki ezifana ne-NYLOLO kwaye i-ptfe isetyenziswa, kunye nerabha yendalo kunye nerabha yendalo isetyenziselwa ukwenza iindawo ezahlukeneyo zokutywina nokutywina kwiivalva ezahlukeneyo. Ezi zinto zingezizo zisetyenziswa njengendawo yokutywina ayinayo kuphela ukunganyangeki kakuhle, kodwa ikwanentsebenzo elungileyo yokutywina, elungele ukusetyenziswa kumajelo eendaba ngamasuntswana. Ewe kunjalo, bomelele kwaye baxhathisa ubushushu, kwaye uluhlu lwezicelo lulinganiselwe.
3. Unyango lwentsimbi
. Ukongeza kwezi ndlela zikhankanywe apha ngasentla, abanye abantu abazimiseleyo baphathwa ngonyango oluthe tye njenge mpazamo ngokwemeko.
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Unyango lonyango olwahlukileyo kufuneka lulungele izixhobo ezahlukeneyo zeStem kunye neendawo zokusebenza, i-vapor ephakathi kunye ne-Asbestos ye-Asbestos ye-Stem, inokusebenzisa i-chrome ye-chrome ye-chrome, inokusebenzisa i-chrome ye-chrome, inokusebenzisa i-chrome ye-chrome ye-ion): kwi-hydrogen Imo yemozulu ye-thelfide esebenzisa i-elektroplas phosphorus phosphoris eNickel Ceating inentsebenzo engcono yokusebenza; I-3yvcrionaa inakho ukunyangeka-ngokunganyangekiyo yi-ion kunye negesi irhasi, kodwa i-chrome ye-chrome enzima ayifanelekanga ukusetyenziswa; I-2cc13 inokuchasana ne-Ammonia isulungekile emva kokucinywa kunye nokucingisisa, kunye nensimbi ye-carbon esebenzisa i-Amonia yosulelo, kwaye yonke imibandela ye-phosmoris-i-photcring i-iradion inesiphene sokunganyangeki kunye nokusebenza okugqibeleleyo , kwaye uninzi lwalusetyenziselwa ukwenza iziqu zevalve.
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4. Ukutshiza kwe-thermal
Ukutshiza kwe-thermal luhlobo lwenkqubo yenkqubo yokulungiselela iingubo, kwaye ibe yenye yeetekhnoloji ezintsha zokukhusela umphezulu. Yinkqubo yokomeleza indawo esebenzisa imithombo yobushushu yamandla (irhasi yerhasi yerhasi yerhasi, i-PLAC, i-Plasma Arc, ukuqhuma kombane, njl. Njl. Umhlaba osisiseko ophambili kwi-Amisis ukwenza ukutshiza, okanye ubushushu umphezulu osisiseko ngaxeshanye, ukuze ukuqhutywa kwakhona kwenziwe inyibilikisi ukuba yinkqubo yokomeleza umhlaba wokutshiza.
Uninzi lweentsimbi kunye nee-alloys zazo, i-cerasics ye-oxide ye-cirmet kunye neendlela zensimbi ezinzima zinokudityaniswa ngentsimbi yentsimbi, ezinokuphucula i-terrosing yensimbi, enokuphucula ukuxhathisa i-terrosion, enokuchaphazela ukunganyangeki, ukunyangwa kobushushu obuphezulu kunye nokunye Iipropathi, kwaye yandisa ubomi benkonzo. Ukutshiza okusebenzayo kokusebenza okukhethekileyo, kunye nokufakelwa kobushushu, ukudumisa (okanye umbane ongaqhelekanga), ukutywina okuqhelekileyo, ukuzonwabisa kwe-elektromil, ukusetyenziswa kwe-elektromil, ukusetyenziswa kwe-thermal spral, ukusetyenziswa kwe-thermal kunokulungisa iinxalenye.
5. Ipeyinti yokutshiza
Ukuthandwayo yinto esetyenziswayo esetyenziswa ngokubanzi, kwaye yindawo engenakuphikiswa nezinto ezinokuchasana nezixhobo zokubonisana kunye nokuchonga kwiimveliso zeValve. Ukudibana kukwanamanqaku angesosinyithi, okuqhelekileyo kwenziwe nge-willn yokwenziwa, i-sliberry yerabha, ioyile yemifuno, i-Solvent, njl njl.
I-Cardings isetyenziswa ikakhulu emanzini, amanzi etyiwa, amanzi olwandle, umoya kunye nezinye iindawo ezingakhange zibonakale kakhulu. I-cavity engaphakathi yevalve idla ngokupeyinta ngepeyinti ye-antikoorrosive ukuthintela amanzi, umoya kunye neminye imithombo yeendaba ukusuka kwi-valve
I-6. Yongeza i-corrosion tohitors
Indlela yokufumana i-Interion Intersosion I-Interrosion kukuba ikhuthaza ukubola kwebhetri yebhetri. I-Interrosion Ithintelo isetyenziswa ikakhulu kwi-media kunye neefilitha. Ukongezwa kwe-corrosion top of Primorion kunokucothisa ukuvela kwezixhobo kunye neevalve, ezinje ngentsimbi engenasilfu-sulfuric acid, i-solrosion ye-Sulfuric Acid, i-Solrosion ibaluleke kakhulu, kodwa yongeza incinci isixa se-sulper ye-calfate okanye i-nitric acid kunye nezinye ii-oxidants, zinokwenza i-oxidants yentsimbi ibe yindawo yokukhusela i-blunt, kwifilimu ekhuselayo ukuthintela i-oxidant, i I-corrosion ye-titanium inokuncitshiswa.
Uvavanyo lwe-Valve luhlala lusetyenziswa njengokuvavanywa kovavanyo, ekulula ukwenza ukuba i-comrosion yeivalve, kwaye ukongeza inani elincinci le-sodium witte ukuya emanzini kungathintela ukuvela kwevali ngamanzi. Ukupakisha i-Asbestos iqukethe i-chloride, eyiphi indawo i-valve stem kakhulu, kwaye umxholo we-chloride unokuncitshiswa ukuba indlela yokuhlamba amanzi yamkelwa, kwaye le ndlela ingathandwa kakhulu ukuyisebenzisa, kwaye ilungele kuphela iimfuno.
Ukwenzela ukukhusela i-valve stem kwaye uthintele ukuvela kwe-Asbestos ukupakisha, kwi-Asbestos ethinter, i-Infinion Anfining kunye nentsimbi yedini idityaniswe kwi-sodium witte kunye ne-sodium chromate, enokuvelisa a ifilimu yokudluliselwa kumphezulu we-valve kwaye iphucule ukunganyangeki kwesiqu se-valve, kwaye isinyibilikisi sinokwenza ukuba i-corrosion incomputer inyibilikise kwaye idlale indima yokulungisa inyibilikisi; Ngapha koko, i-zinc ikwayinto engafunekiyo, enokuqala ukudibanisa i-chloride e-Asbestos, ukuze i-chloride incitshisiwe kakhulu, ukuze ifezekise injongo yokulwa nokuchasana.
I-7. Ukhuseleko lwe-electrochemical
Zimbini iintlobo zokukhuselwa kwe-electrochemical: Ukhuseleko lwe-Abhodic kunye nokukhuselwa kwe-cathodic. Ukuba i-zinc isetyenziselwa ukukhusela i-iron, i-zinc ichithwe, i-zinc ibizwa ngokuba yintsimbi yedini, ukuziqhelanisa nemveliso, ukhuseleko olungaphantsi, ukhuseleko lwe-Actorhoc lusetyenziswa ngaphezulu. Le ndlela yokukhusela i-Kathodic isetyenziselwa i-valve ezinkulu kunye neeValves ezibalulekileyo, eziyindlela yezoqoqosho, elula nefanelekileyo, kwaye i-zinc yongezwa kwi-Asbestos yokupakisha isiqu se-valthi.
I-8. Lawula indawo yokuhlala
Imeko ebizwa ngokuba yi-Rive ineentlobo ezimbini zengqondo kunye nengqondo emxinwa, imeko ebanzi yendalo ibhekisa kwindalo yofakelo lwe-velu kunye nendawo ejikelezayo yangaphakathi, kunye nemvakalelo edibeneyo yendalo ibhekisa kwimiba ejikeleze indawo yokufaka i-valve .
Uninzi lweemeko azilawuleki, kunye neenkqubo zokuvelisa azinakuguqulwa ngokungagungqiyo. Kuyenzeka kuphela kwimeko apho bekungayi kubakho monakalo kwimveliso kunye nenkqubo, indlela yokulawula okusingqongileyo ingamkelwa, njenge-deoxty yenkqubo yokuphucula ioyile ukulungelelanisa ixabiso le-PH, njl njl. Indawo yokujonga, ukongezwa kwe-corrosion tohitors kunye nokukhuselwa kwe-electrochemical okhankanywe apha ngasentla yindlela yokulawula imeko ebonakalayo.
Imozulu izele luthuli, umphunga wamanzi kunye nomsi, ngakumbi kwindawo yemveliso, njenge-brine yemveliso, igesi enetyhefu kunye ne-powder etyhefu ekhutshwe zizixhobo zosulelo kwivasi. Umqhubi kufuneka acoce rhoqo kwaye acoce i-valve kunye ne-reatros rhoqo ngokwemigaqo yeenkqubo zokusebenza, eliyinqanaba elisebenzayo lokulawula ukhukuliseko lwendalo. Ukufaka isigqubuthelo esikhuselayo kwi-valve stem, setha iqula le-valve ephantsi, kwaye ukutshiza kumphezulu wevali zizo zonke iindlela zokuthintela i-erosvesivalve.
Ukonyuka kwamaqondo obushushu aphantsi kunye nongcoliseko lomoya, ngakumbi kwizixhobo kunye neevalve kwindawo evaliweyo, kuyakukhawulezisa ukubonwa, kunye neendlela zoomasifundisane ezivulekileyo, kunye neendlela zokupholisa kufuneka zisetyenziswe ngokungqongqo.
9. Phucula itekhnoloji yokuqhubela phambili kunye ne-valve
Ukukhuselwa kwe-anti-stions yeivalveNgaba yingxaki ethathelwe ingqalelo ukusuka ekuqaleni koyilo, kunye nemveliso ye-valve enendlela efanelekileyo yoyilo kunye nendlela echanekileyo yenkqubo engathandabuzekiyo iya kuba nefuthe elihle ekunciphiseni ingcali yevali. Ke ngoko, isebe loyilo kunye nezomvelisi kufuneka liphucule iinxalenye ezingangqinelaniyo noyilo, iindlela ezingachanekanga kwinkqubo yenkqubo kwaye kulula ukulungela ukungavisisani kweemeko ezahlukeneyo zomsebenzi.
IXESHA LOKUQALA: UJan-22-2025
