Nā uhi hoʻololi Phosphating

ʻO ka hoʻomaʻamaʻa mua ʻia no nā substrate kila ma mua o ka hoʻohana ʻana o nā pale pauka ʻO ka phosphating hiki ke hoʻololi i ke kaumaha o ka uhi.

ʻOi aku ka nui o ke kaumaha o ka hoʻololi ʻana, ʻoi aku ka nui o ke kūpaʻa o ka corrosion i loaʻa; ʻo ka haʻahaʻa o ke kaumaha o ka uhi ʻoi aku ka maikaʻi o nā waiwai mechanical. No laila pono e koho i kahi kuʻikahi ma waena o nā waiwai mechanical a me ka pale ʻana i ka corrosion. Hiki i ke kaumaha o ka uhi phosphate kiʻekiʻe ke pilikia me ka uhi pauda i loko o ka haʻihaʻi aniani ke hiki ke hana i ka wā e hoʻopili ʻia ai ka uhi ʻana i nā mana mechanical i hoʻohana ʻia, e laʻa. kūlou a i ʻole ka hopena.

Ma muli o ka hoʻopili maikaʻi ʻana o ka pauka i ka uhi ʻana i ka phosphate, e hoʻopau pinepine ʻia ka wehe ʻana ma ka phosphate/metal substrate interface ma mua o ka phosphate/powder interface interface.

Hoʻopili ʻia nā uhi phosphate e BS3189/1959, Papa C no ka zinc phosphate a me ka Papa D no ka hao phosphate.
Manaʻo ʻia kahi phosphate crystalline crystalline maikaʻi ma ka uhi paona o 1-2g/m2 a no ka hao phosphate ma 0.3-1g/m2. Hiki ke hoʻohana ʻia ma ke kāpī ʻana a i ʻole ke kau ʻana. ʻAʻole pono ka Chromate passivation.
Hiki i ka Zinc phosphate ke hoʻopuehu ʻia a hoʻopaʻa ʻia i loko o ka hana ʻelima pae, ʻo ia hoʻi. alkali degrease, holoi, zinc phosphate, ʻelua holoi wai.

Hoʻopili maʻamau ʻia nā uhi hao phosphate ma kahi hana ʻekolu a ʻehā paha. ʻO ka hana maʻamau e hele i ʻelua ʻāpana holoi wai ma mua o ka maloʻo ʻana.
Pono ka mea hana ma hope o ka phosphating e uhi ʻia i ka pauka i ka hikiwawe ma hope o ka maloʻo ʻana.