电镀与涂饰
電鍍與塗飾
전도여도식
ELECTROPLATING & FINISHING
2013年
9期
43-47
,共5页
裘海锋%王英民%苗立贤%侯志娇%苗瀛%杨冰
裘海鋒%王英民%苗立賢%侯誌嬌%苗瀛%楊冰
구해봉%왕영민%묘립현%후지교%묘영%양빙
钢丝%锌-铝-稀土合金%热浸镀%前处理%缺陷
鋼絲%鋅-鋁-稀土閤金%熱浸鍍%前處理%缺陷
강사%자-려-희토합금%열침도%전처리%결함
steel wire%zinc-aluminum-rare earth alloy%hot-dip galvanizing%pretreatment%defect
利用电沉积原理,提出了一种在钢丝表面热浸镀锌-10%铝-稀土合金镀层的工艺,在热浸镀合金之前电沉积一层锌镀层,以代替普通的“双镀法”。给出了各工序的溶液配方及工艺条件。指出重点应放在钢丝的预处理上。采用2道电解脱脂以及石英砂擦拭、水溢流漂洗工艺,得到非常清洁的钢丝表面,才能保证镀层质量。给出了合金液温度范围(455~460°C)、氮气抹拭温度参数等技术要点。该工艺较“双镀法”节约能源,生产成本低。探讨了影响镀层质量的富集铝漂浮物的产生原因及处理办法,使镀层光滑,无“疙瘩”等缺陷。该工艺所得钢丝的表面质量稳定,各项理化技术指标达到YB/T 4221-2010《机编钢丝网用镀层钢丝》标准的要求。
利用電沉積原理,提齣瞭一種在鋼絲錶麵熱浸鍍鋅-10%鋁-稀土閤金鍍層的工藝,在熱浸鍍閤金之前電沉積一層鋅鍍層,以代替普通的“雙鍍法”。給齣瞭各工序的溶液配方及工藝條件。指齣重點應放在鋼絲的預處理上。採用2道電解脫脂以及石英砂抆拭、水溢流漂洗工藝,得到非常清潔的鋼絲錶麵,纔能保證鍍層質量。給齣瞭閤金液溫度範圍(455~460°C)、氮氣抹拭溫度參數等技術要點。該工藝較“雙鍍法”節約能源,生產成本低。探討瞭影響鍍層質量的富集鋁漂浮物的產生原因及處理辦法,使鍍層光滑,無“疙瘩”等缺陷。該工藝所得鋼絲的錶麵質量穩定,各項理化技術指標達到YB/T 4221-2010《機編鋼絲網用鍍層鋼絲》標準的要求。
이용전침적원리,제출료일충재강사표면열침도자-10%려-희토합금도층적공예,재열침도합금지전전침적일층자도층,이대체보통적“쌍도법”。급출료각공서적용액배방급공예조건。지출중점응방재강사적예처리상。채용2도전해탈지이급석영사찰식、수일류표세공예,득도비상청길적강사표면,재능보증도층질량。급출료합금액온도범위(455~460°C)、담기말식온도삼수등기술요점。해공예교“쌍도법”절약능원,생산성본저。탐토료영향도층질량적부집려표부물적산생원인급처리판법,사도층광활,무“흘탑”등결함。해공예소득강사적표면질량은정,각항이화기술지표체도YB/T 4221-2010《궤편강사망용도층강사》표준적요구。
A process for hot-dip galvanizing Zn-10%Al-mixed rare earth alloy coating on steel wires based on the principle of electrodeposition (i.e. electroplating a Zn coating prior to galvanizing) was developed as a substitute to common double-dip galvanizing method. The bath composition and operation conditions of individual procedure were presented. It is stressed that the pretreatment of steel wire is the key point. Electrolytic degreasing twice, quartz sand rubbing, and overflow rinsing are employed to produce clean steel wire surface and ensure the quality of coating. The temperature range of molten alloy (455-460 °C) and other technical key points such as the nitrogen wiping temperature were given. The process has advantages of energy saving and low cost as compared with the double-dip method. The causes for the formation of floating aluminum-rich product which influences the coating quality and its treatment method for making the coating smooth and free of defects such as lumps and bumps were discussed. The surface quality of steel wires obtained by the process is stable, and the technical and physicochemical indexes meet the requirements of the standard YB/T 4221-2010 Coated Steel Wire for Machine Woven Steel Wire Mesh.