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hq2000/8 gui wan chu li gong yi zai bing xiang sheng chan xian de ying yong
Author(s): 
Pages: 32
Year: Issue:  7
Journal: Household Appliance Technology

Abstract: 1引言  冰箱生产企业在对冰箱外壳喷塑前均需进行前处理,以提高表面涂层的附着力和耐蚀性能,同时使涂层表面光亮均匀,装饰性强.目前的磷化前处理工艺不仅在处理液中都含有磷酸盐及重金属等有害物质,而且处理过程中也或多或少会产生沉渣及有害气体,在排放的废水中,COD及重金属如不进行环保处理就会危害环境;另外,目前的磷化处理还存在能耗较大,工艺复杂,操作不方便等缺点.因此,新型的环保、节能、低排放、低使用成本的涂装前处理技术成为国内外技术人员研究的重点.……
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