Kuchiza pamwamba pa injini ya downhole - njira yabwino yothetsera dzimbiri mu saline yokhuta

1. Ndathetsa bwino vuto la dzimbiri mu madzi amchere okhuta.

Kuyerekeza njira zogwirira ntchito:

a. Kupaka chromium ndiyo njira yomwe imagwiritsidwa ntchito kwambiri pakadali pano. 90% ya makasitomala amafuta am'nyumba amagwiritsa ntchito njira iyi, yomwe imakhala ndi nthawi yochepa yogwirira ntchito komanso mtengo wotsika. Vuto lalikulu la kuyika electroplating ndi kuipitsa chilengedwe, ndipo kuyika electroplating sikungagwire ntchito mu saline yokhuta.

b. Popopera WC, makasitomala amafunikira kupaka WC pazida zobowolera, kuwonjezera pa kukana kwambiri kuwonongeka, imalimbananso ndi hydrogen sulfide, madzi amchere ndi dzimbiri zina. Choyipa chake ndi mtengo wokwera, ndipo ubwino wake ndi nthawi yayitali yogwirira ntchito. Chida chobowolera chakhala chikugwiritsidwa ntchito kwa maola opitilira 600 ndipo chidakalipo, ndipo chingagwiritsidwe ntchito nthawi zonse mumadzi onyowa.

2. Ukadaulo Wopaka Mapepala Kuthetsa Vuto la Kudzikundikira kwa Madzi Amchere Okhuta

a. Ukadaulo wopaka utoto (umangoyambitsa njira yopambana yothetsera vuto la dzimbiri m'madzi amchere okhuta)

Mapampu a slurry ali ndi malo owoneka bwino otchedwa "lobes" okhala ndi ma lobes 4, 5 kapena 7 pamwamba otchedwa crests (kapena crests). Ma crests amapanga "diameter yayikulu". Kukula kwakukulu kumasiyana kuyambira mainchesi 4.0 mpaka 6.5, komwe kumakhala kukula kwa mota.

Malo otsika kwambiri amatchedwa thai (kapena thai), ndipo thai imapanga "m'mimba mwake wocheperako". Mtunda wokhazikika kuchokera ku lobe kupita ku thai ndi pafupifupi ¼-inch (6.35mm). Pali zofunikira kwambiri za "wave top" pakati pa mota ndi "kulumpha" pakati pa malekezero awiri. Monga muyezo, mtengo wa "runout" uyenera kukhala wochepera 0.010″ (0.254 mm). Zina zilizonse ndi payipi ya rabara ya pampu zidzawonongeka mwachangu mota ikazungulira ikugwira ntchito.

kukonzekera pamwamba

a. Pakupopera mankhwala, kupopera grit sikofunikira. Pamwamba pake pamafunika kutsukidwa ndi zida zamanja pokhapokha ngati pakufunika kutero kapena kuchotsa mafuta. Kupopera mankhwala kungagwiritsidwebe ntchito ngati chothandizira, ngati pakufunika kuyeretsa pamwamba mwachangu kapena kukonza pang'ono chophimba chopopera.