Ukudlulisa Ukushisa Kwe-Hot Dip Aluminizing Coating Ngesikhathi Sokuqina

I-hot dip aluminizing coating ingenye yezindlela eziphumelela kakhulu zokuvikela indawo yezinsimbi futhi kancane kancane ithola ukuthandwa. Nakuba ijubane lokudonsa lingelinye lamapharamitha abaluleke kakhulu okulawula ukushuba kokumboza kwemikhiqizo ye-aluminizing, nokho, kukhona ukushicilelwa okumbalwa kokumodela kwezibalo kwejubane lokudonsa ngesikhathi senqubo yokucwilisa okushisayo. Ukuze uchaze ukuhlobana phakathi kwejubane lokudonsa, ukujiya koqweqwe kanye nesikhathi sokuqina, isimiso sokudluliswa kwesisindo nokushisa ngesikhathi senqubo ye-aluminizing siyaphenywa kuleli phepha. Amamodeli ezibalo asekelwe kuzibalo ze-Navier-Stokes nokuhlaziywa kokudlulisa ukushisa. Izivivinyo zisebenzisa imishini ezakhelwe yona iyenziwa ukuze kuqinisekiswe amamodeli ezibalo. Ngokuqondile, i-aluminium yokuncibilika ihlanzwa ku-730 ℃. Indlela ye-Cook-Norteman isetshenziselwa ukwelashwa kwangaphambili kwamapuleti ensimbi e-Q235.

Izinga lokushisa le-hot dip aluminizing isethwe ku-690 futhi ℃ isikhathi sokucwilisa sisethelwe kumaminithi angu-3. Injini yamanje eqondile enejubane elingenamkhawulo isetshenziswa ukulungisa isivinini sokudonsa. Ukushintsha kwezinga lokushisa kwe-coating kuqoshwa nge-thermometer ye-infrared, futhi ubukhulu bokugqoka bulinganiswa ngokusebenzisa ukuhlaziywa kwesithombe. Imiphumela yokuhlola eqinisekisayo ibonisa ukuthi ukujiya koqweqwe lwawo kuhambisana nempande eyisikwele yesivinini sokudonsa sepuleti lensimbi le-Q235, nokuthi kukhona ubudlelwano bomugqa phakathi kogqinsi lwengubo nesikhathi sokuqiniswa lapho isivinini sokudonsa singaphansi kuka-0.11 m/s. Ukubikezela kwemodeli ehlongozwayo kufanelana kahle nokubonwa kokuhlolwa kogqinsi lokumboza.

Isingeniso se-1

Insimbi ye-aluminizing ye-dip eshisayo inokumelana nokugqwala okuphezulu kanye nezakhiwo ezifiseleka kakhulu zemishini uma kuqhathaniswa nensimbi eshisayo yediphu. Isimiso se-hot dip aluminizing siwukuthi amapuleti ensimbi afakwe ngaphambili acwiliswa kuma-alloys ancibilikisiwe e-aluminium ezingeni lokushisa elithile ngesikhathi esifanele. Ama-athomu e-aluminium ayahlakazeka futhi ahlangane nama-athomu e-Iron ukuze akhe ukuhlanganiswa kwenhlanganisela ye-Fe-Al kanye nengxubevange ye-aluminium enamandla okubopha okuqinile ne-matrix ukuze anelise imfuneko yokuvikela nokuqinisa indawo engaphezulu. Ngamafuphi, i-hot dip steel material iwuhlobo lwempahla eyinhlanganisela enezakhiwo ezibanzi futhi enezindleko eziphansi. Njengamanje, amasu anjenge-Sendzimir, i-Non-oxidizing reduction, i-Non-oxidizing kanye ne-Cook-Norteman imvamisa asetshenziselwa i-hot dip aluminizing, lapho ukukhiqizwa okukhulu kungenziwa khona ngenxa yokusebenza kahle kwawo okuphezulu kokukhiqiza, izinga elizinzile lemikhiqizo kanye nokuncane. ukungcola. Phakathi kobuchwepheshe obune, i-Sendzimir, i-Non-oxidizing reduction kanye ne-Non-oxidizing ibonakala ngezinqubo eziyinkimbinkimbi, imishini ebizayo kanye nezindleko eziphezulu. Namuhla, indlela ye-Cook-Noteman isisetshenziswa kabanzi ngenxa yezinzuzo zezinqubo eziguquguqukayo, izindleko eziphansi kanye nemvelo enobungani.

Ngenqubo ye-aluminizing ye-dip eshisayo, ukujiya kokugqoka kuyisici esibalulekile sokuhlola ikhwalithi yokunamathela futhi kudlala indima ebalulekile ekunqumeni izakhiwo zokumboza. Ngakho-ke, indlela yokulawula ukushuba kokumboza ngesikhathi senqubo yediphu eshisayo kuthathwa njengokubalulekile ekuqinisekiseni ikhwalithi yokunamathela enhle kakhulu. Njengoba sesivele sazi, kukhona ukuhlobana okusondelene kokuhlanganisa phakathi kogqinsi lokumboza, isivinini sokudonsa kanye nesikhathi sokuqinisa. Ngakho-ke, ukuze ulawule inqubo yokucwilisa okushisayo futhi uthuthukise ikhwalithi yokugqoka, kuyadingeka ukwakha imodeli yezibalo engachaza lokhu kuhlobana. Kuleli phepha, imodeli yezibalo yogqinsi bokujiya nesivinini sokudonsa ithathwe kuzibalo ze-Navier-Stokes. Ukudluliswa kokushisa ngesikhathi sokuqiniswa kwe-coating kuyahlaziywa, futhi ubudlelwano bokuqina kokuqina kanye nesikhathi sokuqina kuyasungulwa. Ukuhlolwa kwe-hot dip aluminizing amapuleti ensimbi e-Q235 asuselwa kundlela ka-Cook-Norteman kwenziwa ngomshini wokuzenzela. Izinga lokushisa langempela kanye nokujiya okunamathelayo kukalwa ngokufanele. Ukuphuma kwethiyori kuboniswa futhi kuqinisekiswe ucwaningo.

2 Imodeli Yezibalo

2.2 Ukudluliswa kokushisa ngesikhathi sokuqinisa ukunamathela Njengoba i-aluminium enamathela incane kakhulu, ingathathwa njenge-paraluketshezi lwe-lel olugeleza endaweni eyisicaba yezingcezu ezipuletiwe. Khona-ke ingahlaziywa kusukela ku-x direction. Imidwebo ye-schematic ye-coating-substrate inikezwa ku-Fig. 2 futhi ukusatshalaliswa kwezinga lokushisa kuboniswa ku-Fig. 3.
Ukuze uthole imininingwane ephelele, sicela usithinte.