He aha ka ʻokoʻa ma waena o ka spangle a me ka zero-spangle o ka wili galvanized?

4. He aha ke kumu palekana opuʻu wela welapapa?

Pane: No ka mea hiki i ka zinc ke hana i kahi kiʻiʻoniʻoni me ka pale ʻana i ka corrosion maikaʻi ma ka ʻili i loko o kahi pōʻino.ʻAʻole ia e pale wale i ka papa zinc ponoʻī, akā i ke kumu kila.

5. He aha ke kumumanaʻo o ka passivation o ka puʻu wela wela?

Pane: Ka chromate passivation lapaʻau opepa galvanizedhiki ke hana i kahi kiʻiʻoniʻoni passivation, a penei kāna ʻano hoʻohālikelike kemika: Zn+H2GrO4-ZnGrO2=H2

ʻO ka trivalent chromium i loko o ka ʻohana passivation solution ʻaʻole hiki ke hoʻoheheʻe ʻia i ka wai, ʻaʻohe hana kemika, a hana ma ke ʻano he iwi iwi, ʻoiai ʻo ka hexavalent chromium hiki ke hoʻoheheʻe ʻia i ka wai a hiki ke pāʻani i ka passivation hou i ka wā e ʻoki ʻia ai ke kiʻi passivation.Loaʻa iā ia ka hopena ho'ōla o ke kiʻiʻoniʻoni passivation.No laila, i loko o kahi palena, hiki i ke kiʻi passivation ke pale i ka hoʻoneʻe pololei ʻana o ka pepa galvanized e ka mahu a i ʻole ka ea humid, a ʻo ka papa zinc ke kuleana palekana.

6. He aha nā ʻano no ka hoʻāʻo ʻana i ka pale ʻana o ka corrosionwili pepa galvanized wela?

Pane: ʻEkolu mau ʻano e hoʻāʻo ai i ke kūpaʻa ʻino o ka pepa galvanized wela: ka hoʻāʻo ʻana i ka paʻakai;hōʻike haʻahaʻa;hoao erosion.

7. No ke aha e hana ʻia ai ka lāʻau anti-rust ma nā huahana galvanized wela?

Pane: Aia i ka ea haʻahaʻa ka pepa galvanized wela, ʻoi aku ka nui o ka loaʻa ʻana o nā mea ʻawaʻawa e like me SiO2, CO2, NO2 a me NO, ʻo ka ʻili o ka papa galvanized e hana koke i ka lepo keʻokeʻo.ʻO nā mea nui o ka ʻōpala keʻokeʻo ʻo ZnO a me Zn(OH) 2. ʻAʻole pili wale kēia ʻano ʻōpala keʻokeʻo i ka helehelena, akā lawe pū kekahi i nā pilikia nui i ka hoʻohana ʻana i ka wā e hiki mai ana.

8. He aha nā kumu o ka ʻōpala keʻokeʻo ma lunawili puʻupuʻu?

Pane: ʻO nā kumu o ka ʻōpala keʻokeʻo: ua hoʻokomo pū ʻia ka galvanizing wela me nā mea hoʻoheheʻe ʻē aʻe e like me ka waikawa, ka alkali a me ka paʻakai;ua pōʻino ke kiʻi passivation a i ʻole anti-film;ʻaʻole maikaʻi ka hopena passivation a i ʻole ka ʻaila;ʻAʻole maikaʻi ka ea o ka hale waihona kālā, Mākū;ua kāpī ʻia ka pepa galvanized me ka wai i ka wā o ka lawe ʻana;lawe ʻia ma ka wela haʻahaʻa a mālama ʻia i ka wela kiʻekiʻe, e hana ana i ka condensation.