Ukutshintshwa kobushushu beDip eshushu yeAluminizing Coating Ngexesha lokuQinisekisa

Idiphu eshushu i-aluminizing coating yenye yezona ndlela zisebenzayo zokukhusela umphezulu weentsimbi kwaye ngokuthe ngcembe ifumana ukuthandwa. Nangona isantya sokutsala sesinye sezona parameters zibalulekileyo zokulawula ukutyeba kokugquma kweemveliso ze-aluminizing, nangona kunjalo, kukho iimpapasho ezimbalwa kwimodeli yezibalo yokutsalwa kwesantya ngexesha lenkqubo yediphu eshushu. Ukuze uchaze ulungelelwaniso phakathi kwesantya sokutsala, ubukhulu bengubo kunye nexesha lokuqina, umgaqo wobunzima kunye nobushushu bokudluliselwa ngexesha lenkqubo ye-aluminizing iphandwa kweli phepha. Iimodeli zemathematika zisekelwe kwi-equation ye-Navier-Stokes kunye nohlalutyo lokudluliselwa kobushushu. Iimvavanyo zisebenzisa izixhobo ezenzelwe zona zenziwa ukuze kuqinisekiswe iimodeli zemathematika. Ngokukodwa, i-aluminiyam inyibilika ihlanjululwa kwi-730 ℃. Indlela ye-Cook-Norteman isetyenziselwa ukulungiswa kwangaphambili kweepleyiti zensimbi ze-Q235.

Ubushushu bediphu eshushu aluminizing imiselwe kwi-690 kwaye ℃ ixesha lokudipha limiselwe kwi-3 min. Injini yangoku ethe ngqo enesantya esingena nyathelo isetyenziselwa ukulungisa isantya sokutsala. Ukutshintsha kweqondo lokushisa kwengubo irekhodwa nge-thermometer ye-infrared, kwaye ubukhulu bengubo bulinganiswa ngokusebenzisa uhlalutyo lomfanekiso. Iziphumo zovavanyo ezingqiniweyo zibonisa ukuba ubukhulu bokugquma bulingana nengcambu yesikweri sokutsalwa kwesantya kwipleyiti yentsimbi ye-Q235, kwaye kukho ubudlelwane bomgca phakathi kobunzima bokwaleka kunye nexesha lokuqina xa isantya sokutsala singaphantsi kwe-0.11 m/s. Ukuqikelelwa kwemodeli ecetywayo kuhambelana kakuhle neemvavanyo zovavanyo lobunzima bokugquma.

Intshayelelo ye1

Idiphu eshushu i-aluminizing intsimbi inokumelana nomhlwa kunye neempawu ezinqwenelekayo zoomatshini xa kuthelekiswa nentsimbi eshushu yokudipha. Umgaqo we-aluminizing yediphu eshushu kukuba iipleyiti zentsimbi ezifakwe ngaphambili zifakwe kwi-alloys ye-aluminium etyhidiweyo kwiqondo lokushisa elithile ngexesha elifanelekileyo. Iiathom ze-aluminiyam zisasazeke kwaye zisabele kunye neeathom ze-Iron zenze i-composite ye-Fe-Al ikhompawundi kunye ne-alloyi ye-aluminiyam enamandla okubambisa ngamandla kunye ne-matrix ukwanelisa imfuneko yokukhusela nokomeleza umphezulu. Ngamafutshane, i-hot dip steel material luhlobo lwezinto ezidibeneyo ezineempawu ezibanzi kunye neendleko eziphantsi. Okwangoku, ubuchule obunje ngeSendzimir, ukuncitshiswa kwe-non-oxidizing, i-Non-oxidizing kunye ne-Cook-Norteman zihlala zisetyenziselwa i-dip dip aluminizing eshushu, apho imveliso emikhulu inokufezekiswa ngenxa yokusebenza kwayo okuphezulu kwemveliso, umgangatho ozinzile weemveliso kunye nokuncinci. ungcoliseko. Phakathi kwezobuchwepheshe ezine, i-Sendzimir, i-Non-oxidizing ukunciphisa kunye ne-Non-oxidizing ibonakala ngeenkqubo eziyinkimbinkimbi, izixhobo ezibizayo kunye neendleko eziphezulu. Kule mihla, indlela yeCook-Noteman isetyenziswa ngokubanzi ngenxa yeenzuzo zeenkqubo eziguquguqukayo, ixabiso eliphantsi kunye nobuhlobo bokusingqongileyo.

Kwinkqubo ye-aluminizing yediphu eshushu, ukutyeba kokugquma kuyinqobo ebalulekileyo yokuvavanya umgangatho wokugquma kwaye idlala indima ephambili ekumiseleni iipropati zokwaleka. Indlela yokulawula ukutyeba kokutyabeka ngexesha lenkqubo yediphu eshushu ke ngoko ithathwa njengento ebalulekileyo ekuqinisekiseni umgangatho obalaseleyo wokugquma. Njengoko sele sisazi, kukho ulungelelwaniso olusondeleyo phakathi kobunzima bokugquma, isantya sokutsala kunye nexesha lokuqina. Ngoko ke, ukuze kulawulwe inkqubo yokudibanisa eshushu kunye nokuphucula umgangatho wokugquma, kuyimfuneko ukwakha imodeli yemathematika enokuthi ichaze oku kulungelelaniswa. Kweli phepha, imodeli yemathematika yobukhulu bokutya kunye nesantya sokutsalwa ithathwa kwi-equation ye-Navier-Stokes. Ukugqithiswa kobushushu ngexesha lokuqiniswa kokuqina kuhlalutywa, kwaye ubudlelwane bobunzima bokugquma kunye nexesha lokuqina liyasekwa. Uvavanyo lwediphu eshushu aluminizing iipleyiti zentsimbi ze-Q235 ezisekwe kwindlela ye-Cook-Norteman ziqhutywa ngesixhobo sokuzenzela. Ubushushu bokwenyani kunye nobukhulu bengubo bulinganiswa ngokufanelekileyo. Inkcazo yethiyori ibonakaliswe kwaye iqinisekiswa yimifuniselo.

2 Umzekelo weMathematika

2.2 Ukutshintshwa kobushushu ngexesha lokuqiniswa kwengubo Ekubeni i-aluminium yokugqoka incinci kakhulu, inokuthathwa njenge-paralulwelo lwe-lel oluqukuqelayo kumphezulu osicaba wamaqhekeza acwecwe. Emva koko inokucazululwa ukusuka kwicala lika x. Imizobo eqingqiweyo ye-coating-substrate iboniswe kwi-Fig. 2 kwaye ukuhanjiswa kweqondo lokushisa kuboniswe kwi-Fig.
Ngeenkcukacha ezipheleleyo, nceda uqhagamshelane nathi.