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Koho waiwai o na kiwi kemika

1. Sulfuric acid E like me kekahi o nā media corrosive ikaika, ʻo ka sulfuric acid he mea koʻikoʻi o ka ʻoihana waiwai me ka laulā nui o ka hoʻohana.ʻOkoʻa loa ka ʻino o ka ʻakika sulfuric me nā ʻokoʻa a me nā mahana.No ka ʻakika sulfuric concentrated me ka manaʻo ma luna o 80% a me ka mahana ma lalo o 80 ℃, ʻoi aku ka maikaʻi o ka corrosion resistance, ke kila kalapona a me ka hao, akā ʻaʻole kūpono ia no ka waika sulfuric kahe kiʻekiʻe.ʻAʻole kūpono ia no ka hoʻohana ʻana ma ke ʻano he mea no nā kiwi paila;ʻO nā kila kulika maʻamau e like me 304 (0Cr18Ni9) a me 316 (0Cr18Ni12Mo2Ti) i kaupalena ʻia no ka media sulfuric acid.No laila, hana pinepine ʻia nā ʻōmole paila no ka lawe ʻana i ka sulfuric acid i ka hao kiʻekiʻe-silikona (ka paʻakikī i ka hoʻolei ʻana a me ka hana ʻana) a me ke kila kila kila kiʻekiʻe (alloy 20).ʻOi aku ka maikaʻi o ke kūʻē ʻana o nā fluoroplastics i ka sulfuric acid, a ʻoi aku ka maikaʻi o nā pahu fluorine-lined.

2. ʻO ka ʻakika acetic kekahi o nā mea ʻino loa i loko o nā ʻakika organik.E ʻino nui ʻia ke kila maʻamau i ka ʻakika acetic ma nā ʻano a me nā mahana a pau.ʻO ke kila kila he mea maikaʻi loa ke kūpale acetic acid.316 kila kuhiliʻole i loko o ka molybdenum ua kūpono no ke kiʻekiʻe wela a me ka Dilute acetic acid mahu.No nā koi koi e like me ke kiʻekiʻe kiʻekiʻe a me ke kiʻekiʻe o ka acetic acid a i ʻole nā ​​​​mea hoʻoheheʻe corrosive ʻē aʻe, hiki ke koho ʻia nā kiʻekiʻe kiʻekiʻe o ke kila kila kila a i ʻole nā ​​kiwi fluoroplastic.

3. Hydrochloric acid ʻO ka hapa nui o nā mea metala ʻaʻole kūʻokoʻa i ka corrosion acid hydrochloric (me nā mea kila stainless steel), a hiki ke hoʻohana wale ʻia ka ferro-molybdenum kiʻekiʻe i loko o ka waikawa hydrochloric ma lalo o 50 ° C a me 30%.Kū'ē i nā mea metala, ʻo ka hapa nui o nā mea metala ʻole ke kūpaʻa maikaʻi ʻana i ka waika hydrochloric, no laila, ʻo nā kiwi kaila a me nā kiwi plastik (e like me polypropylene, fluoroplastics, etc.) ʻo ia ka koho maikaʻi loa no ka lawe ʻana i ka waika hydrochloric.

4. Nitric acid.Hoʻopili koke ʻia ka hapa nui o nā metala i ka waikawa nitric.ʻO ke kila kila ka mea hoʻohana nui ʻia i ka nitric acid resistant material.Loaʻa iā ia ke kūpaʻa corrosion maikaʻi i nā manaʻo a pau o ka waikawa nitric ma ke ana wela.Pono e ʻōlelo ʻia ʻo ke kila kila i loaʻa i ka molybdenum (e like me The corrosion resistance of 316, 316L) i ka waikawa nitric ʻaʻole i emi wale i ke kila kila maʻamau (e like me 304, 321), a i kekahi manawa haʻahaʻa.No ke kiʻekiʻe kiʻekiʻe nitric acid, titanium a me ka titanium alloy mea hoʻohana maʻamau.


Ka manawa hoʻouna: Sep-26-2021