Out-of-line annealing 'o ia hoʻi ka hana ana i ka recrystallization annealing o ka wela a iʻole ke anu i olokaa kila pā i lawe 'ia i loko o ka lalo 'ano annealing kapuahi a uhi 'ano annealing kapuahi ma mua o ke komo 'ana i ka wela plating laina laina, no laila, 'a'ohe ka'ina hana annealing i loko o ke galvanized. laina.Pono e mālama ka pā kila i kahi maʻemaʻe maʻemaʻe o ka hao maʻemaʻe, me ka ʻole o nā oxides a me nā lepo ʻē aʻe, ma mua o ka hoʻopaʻa ʻana i ka galvanizing wela.Ma kēia ʻano, hoʻoneʻe mua ʻia ka ʻili o ka annealed surface oxide ma ke ʻano pickling, a laila uhi ʻia me kahi papa o ka zinc chloride a i ʻole ka hui ʻana o ka ammonium chloride a me ka zinc chloride solvent no ka pale ʻana, i mea e pale ai i ka pā mai ka oxidized hou.
ʻO kēia ʻano hana maʻamau ka hoʻohana ʻana i ka pā laminated ʻōwili wela e like me ka mea maka, hoʻouna mua ʻia ka pā kila annealed i ka hale hana pickling, me ka sulfuric acid a i ʻole hydrochloric acid e hoʻoneʻe i ka ʻili o ka ʻili o ke kila o ka oxygen heat galvanizing method.Ma hope o ka pickling, komo koke ka pā kila i ka pahu e hoʻomoʻa a kali i ka galvanized, hiki ke pale i ka reoxidation o ka pā kila.Ma hope o ka pickling, hoʻomaʻemaʻe wai, kaomi maloʻo, hoʻomaloʻo, i loko o ka ipu hao, ua mālama ʻia ka mahana ma 445-465 ℃.
A laila, ʻaila ʻia ka hoʻoheheʻe wela wela a chromed.Ua hoʻomaikaʻi maikaʻi ʻia ka maikaʻi o ka lau wela-galvanized i hana ʻia e kēia ʻano hana i hoʻohālikelike ʻia me ke ʻano galvanizing pulu.He waiwai wale no ka hana liilii.Hoʻomau ka laina hana galvanizing me kahi ʻano o nā kaʻina hana pretreatment, e like me ka alkali degreasing, hydrochloric acid pickling, holoi wai, solvent coating, maloʻo, a me nā mea ʻē aʻe, a pono e hoʻopili ʻia ka pā mua i ka umu uhi ma mua o ke komo ʻana i ka laina galvanizing.
Ka manawa hoʻouna: 24-03-23