Paipu poepoe galvanized

Ua māhele ʻia nā paipu kila galvanized i ʻelua ʻano: galvanizing wela-dip a me electro-galvanizing. He mānoanoa ka papa galvanizing wela-dip, haʻahaʻa ke kumukūʻai o ka electro-galvanizing, a ʻaʻole laumania loa ka ʻili. Paipu wili ʻia me ka oxygen: hoʻohana ʻia no nā paipu puhi oxygen hana kila, ʻo ka maʻamau he paipu kila wili liʻiliʻi ke anawaena, me ʻewalu mau kikoʻī mai 3/8 a 2 ʻīniha. E hoʻohana i 8, 10, 15, 20 a i ʻole Hana ʻia ia me ke kaula kila 195-Q235, i mea e pale ai i ka pala, pono e hana i ka mālama aluminizing.

ʻO ka paipu welded galvanized wela-dip ka mea e hana ai i ka metala hoʻoheheʻe ʻia me ka matrix hao e hana i kahi papa alloy, i hui pū ʻia ai ka matrix a me ka uhi. ʻO ka galvanizing wela-dip ka pickle mua ʻana i ka paipu kila. I mea e wehe ai i ka hao oxide ma luna o ka ʻili o ka paipu kila, ma hope o ka pickling, hoʻomaʻemaʻe ʻia i loko o kahi pahu me ka ammonium chloride a i ʻole ka zinc chloride aqueous solution a i ʻole kahi hui wai o ka ammonium chloride a me ka zinc chloride, a laila hoʻouna ʻia i loko o ka pahu plating wela-dip. Loaʻa i ka galvanizing wela-dip nā pono o ka uhi like, ka hoʻopili ikaika a me ke ola lawelawe lōʻihi.

He electro-galvanizing ka galvanizing anu, a he liʻiliʻi loa ka nui o ka galvanizing, ʻo 10-50g / m2 wale nō, a ʻoi aku ka ʻino o kona kūpaʻa i ka corrosion ma mua o nā paipu galvanized wela.