I-Dacromet Flange Bolts: I-Superior Anti-Corrosion kanye Ne-Anti-Rust Performance Yokucela Izicelo 

I-Dacromet iwuhlelo lwe-non-electrolytic, olususelwe emanzini lokuhlanganisa i-inorganic ehlanganiswe ngokuyinhloko ama-zinc agqagqene namaflake e-aluminium ahlakazwe kusibophezelo se-inorganic esiqukethe i-chromium noma esingenayo i-chromium. Isetshenziswa ngezindlela ze-dip-spin, spray, noma i-dip-drain futhi ngemva kwalokho yelashwe ngokushisa, okokunamathela kwenza into encane (ngokuvamile engu-5–15 μm), ifilimu yokuvikela eyiyunifomu, empunga eyisiliva enamathela ngokuqinile ku-substrate yensimbi.

I-anti-corrosion mechanism ye-Dacromet isebenza ngezenzo ezine ezihambisanayo:

1.Ukuvikela isithiyo: I-zinc egqagqene namaflake e-aluminium kudala izendlalelo eziningi ezithiya ukungena komswakamo, umoya-mpilo, nama-ion abolayo.

2.Ukuvikelwa komhlatshelo (galvanic): I-Zinc isebenza njenge-anode yomhlatshelo, igqwala ngokukhethekile ukuze ivikele insimbi engaphansi ekugqwaleni.

3.Ukuziphilisa/ukuzilungisa: Imikhiqizo ye-oxidation ye-zinc ne-aluminium igcwalisa umonakalo omncane embotsheni, igcina ubuqotho obuqhubekayo bokulwa nokugqwala.

4.Intshisekelo: I-inorganic binder ne-passivating compounds ibambezela ukusetshenziswa komhlatshelo kwe-zinc, andise ukumelana nokugqwala okuphelele.

Ngenxa yokuthi le nqubo ayihlanganisi i-acid pickling noma i-electrolysis, i-Dacromet coating iqeda ngokuphelele ingozi ye-hydrogen embrittlement-inzuzo ebalulekile yamabhawodi anamandla aphezulu (Amabanga 10.9, 12.9, kanye ne-ASTM A490 / F3125). Lokhu kwenza amabhawodi e-Dacromet flange athembeke ngokwemishini futhi amelane kakhulu nokugqwala nokucekelwa phansi kwemvelo.

3. Izinzuzo ezibalulekile ze-Dacromet Flange Bolts

3.1 Ukugqwala Okukhethekile kanye Nokumelana Nokugqwala

Amabhawodi e-flange ahlanganiswe ne-Dacromet atholakala njalo Amahora angu-1,000 noma ngaphezulu ukuhlolwa kwesifutho sikasawoti esingathathi hlangothi (ASTM B117 / ISO 9227) ngaphandle kokubonakala kokugqwala okubomvu. Ezicacisweni eziningi, ukugqwala okumhlophe kubambezeleka ngaphezu kwamahora angu-240-500, futhi ukusebenza kokuqeda ukugqwala sekukonke kudlula izikhathi ezingu-7-10 ngaphezu kokwenziwa kwe-electrogalvanizing evamile. Leli khono elivelele lokuvimbela ukugqwala liqinisekisa impilo ende yesevisi ezindaweni zasogwini, zasolwandle, zezimboni, kanye ne-de-icing-salt.

3.2 Ayikho Ingozi Ye-Hydrogen Embrittlement

Ngokungafani nezinqubo ze-electroplating ezethula i-hydrogen ensimbi eqinile, i-Dacromet dip-spin noma inqubo yesifutho ayiyona neze i-electrolytic. Ngenxa yalokho, amabhawodi e-flange anamandla amakhulu agcina izakhiwo zawo ezigcwele zemishini futhi awanawo ama-brittle fracture abambezelekile okubangelwa i-hydrogen embrittlement—ehlinzeka kokubili ukuvikela kokugqwala nokuphepha kwesakhiwo.

3.3 Okuzacile, Okufana Nokufana Nokulawula Okuhle Kakhulu

Ugqinsi olujwayelekile lokumboza lusukela ku-5 kuye ku-15 μm. Le filimu ezacile ayiguquli kakhulu ubukhulu bentambo, ivumela amantongomane ajwayelekile ukuthi asetshenziswe ngaphandle kokudlula ngokweqile. I-coating ingena kumajiyometri ayinkimbinkimbi, izintambo, nezindawo zangasese ngokufana, iqinisekisa ukumbozwa okuphelele kokuqeda ukugqwala ngisho nasemaphrofayilini ebhawodi e-flange ayinkimbinkimbi.

3.4 Ukuzinza Kwezinga Lokushisa Okuphezulu kanye Nemihlomulo Eyengeziwe

Izembatho ze-Dacromet zihlala zisebenza kahle emazingeni okushisa aqhubekayo afinyelela ku-250-300 ° C, edlula kude imikhawulo yokushisa ye-zinc plating evamile. Izinzuzo ezengeziwe zihlanganisa ukupendeka okuhle, ama-coefficients alawulwayo (ikakhulukazi ama-topcoat agcotshiwe), ukusebenzisana kwe-bimetallic ne-aluminium, nokuhambisana nezindinganiso eziningi zezimoto nezemvelo.