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target="_blank">电镀</a>前必要的工作。镀液与所用的工艺条äšgåQŒé¡»ç”׃ñ”品的要求来确定。目前能采用的工艺已¾lå¾ˆå¤šï¼Œä¸åŒçš„配方和工艺条äšg可以 很容易地查到。选择镀液的配方和配套的工艺åQŒé¦–要的是能针对性地满èƒö产品的质量要求,其次便是考虑可能得以实施的环境和条äšgã€?br />  <br />     产品要求电镀åQŒä¸€èˆ¬å¤§å¤šæ˜¯ä¸ÞZº†è£…饰防护或者增强其功能。无论是何种目的åQŒæ‰€é•€å‡ºçš„镀层都必须是一层均匀的完整覆盖,˜q™æ˜¯æœ€åŸºæœ¬çš„要求。如果被镀件åŞ状复 杂,或具有小的内孔、凹é™ähˆ–盲孔åQŒæˆ–者材料与表面很特ŒDŠï¼Œç”µé•€å·¥è‰ºž®±å¿…™åȝ»†è‡´ç ”½I¶åˆ†æžåŽæ‰ç¡®å®šï¼Œä»¥ä¾¿æ»¡èƒö˜q™äº›ç‰ÒŽ®Šæƒ…况。镀液是否能具备­‘›_¤Ÿçš„宏观与微观åˆ?散能力,昄¡„¶æ˜¯å¿…™å»è¦è€ƒè™‘çš„ã€?br />  <br />     通常电镀溶液的配方大体上可以分äؓ两类。按照电极上¼›Õd­äº¤æ¢æ—¶å…·å¤‡çš„形态,½Ž€å•çš„水合¼›Õd­å’ŒåŠ å…¥ç»œåˆå‰‚或鳌合剂后生成的较复杂离子。在分散能力、电镀é€?度、镀层结晶结构和ç‰ÒŽ€§ç­‰æ–šw¢éƒ½æœ‰æ˜Žæ˜¾å·®åˆ«ã€‚如果零件åŞ状åƈ不特别复杂,镀层也能满­‘Œ™¦æ±‚æ—¶åQŒå®œž®½é‡é€‰ç”¨è¾ƒç®€å•çš„镀液配斏V€‚这样不仅成本低åQŒæ˜“于控制和½Ž?理,而且更重要的是污水也较易æ²È†ã€?br />  <br />     对于一¿Uå®žç”¨çš„电镀溶液åQŒä¸‹åˆ—项目须着重考虑ã€?br />  <br />     1溶液的æ€ÖM½“‹¹“度<br />  <br />     ¼›Õd­‹¹“度高可以提高容许的极限甉|µå¯†åº¦ã€‚但材料的成本也上升。随之镀液从槽内带出的损耗和引è“v的污水处理成本也增加ã€?br />  <br />  <br />  <br />     2æ·ÕdŠ çš„组åˆ?br />  <br />     镀液中æ·ÕdŠ çš„组分不宜太多,否则难于控制和调æ•ß_¼Œå®žé™…上无法保持工艺的½E›_®šã€‚即便是非分解性的¾l„分åQŒä¹Ÿä¼šå¸¦æ¥åˆ†æžå’Œè°ƒæ•´çš„困难。组分的寿命也要考虑åQŒä¼šè‡?行分解或在电解过½E‹ä¸­å‘生变化、半衰期短的ž®½é‡ä¸ç”¨ã€‚有些化合物加入后十分有效,但污水难于处理的也不宜加入,否则会遇到环境污染的限制。有毒物质更要慎 加ã€?br />  <br />     3溶液的工作温åº?br />  <br />     常温工作的电镀溶液当然比较理想åQŒå¯ä»¥èŠ‚省设备投资和能源消耗。但工作温度区间不宜太窄åQŒå¦åˆ™ä»é¿å…ä¸äº†è¦é…å¤‡åŠ æ¸©è®¾æ–½ï¼Œç”šè‡³é…å¤‡å†·å´è®‘Ö¤‡ã€‚æ€ÖM½“来讲åQŒé•€ 液要求加温åƈ不一定都会提高成本,˜q™è¦çœ‹å®žé™…要保持的温度和相应获得的好处。综合的效益取决于选择协调的工艺ã€?br />  <br />     4相应的配套工è‰?br />  <br />     一般地è¯ß_¼Œé€‰ç”¨çš„镀液要具备较高的操作柔性。对操作要求苛刻的镀液åƈ非好的镀涌Ӏ‚有些镀液效果虽好,但对辅助工作要求条äšg很敏感,必将在生产中½I·äºŽåº”付ã€?镀液不宜过分地要求工艺配套åQŒæˆ–者容许参数范围过½H„,以避免难于监控和调整¾l´æŠ¤ã€‚例如要求表面准备过严,便相应要增加成本和废品率ã€?br />  <br />     5研发与生äº?br />  <br />     电镀在很大程度上是服务性的工艺åQŒè€Œå…¶æœ¬èín从化学和电化学角度也是一¿Uè¾ƒå¤æ‚的工艺系¾lŸã€‚电镀工艺的选择实际上还与äñ”品本íw«çš„设计和结构、零件的材料和加 工方法、组件和部äšg的装配过½E‹ã€äñ”品的贮存环境和贮存期、ä‹É用的条äšg与预期寿命等诸多因素息息相关。自íw«çš„特点˜q˜æœ‰å·¥è‰ºçš„稳定性和柔性、与人力资源和环å¢?要求的协调、材料的供应和能源配备等½{‰ã€‚因此,特别是对于新的工艺研½IӞ¼Œå¿…须有中间放大和开发的˜q‡ç¨‹ä»¥æ‰¾å‡ºé—®é¢˜ï¼Œå¦åˆ™ä¸é€‚应和被动常会发生ã€?br />  </p> </div> <div class="pagess"> <ul><div>下一æ?<a href="43.html">铜铝件局部镀锡生产厂家äؓ您讲˜q°é•€é”¡é“æŽ’可否替代镀锡铜排?</a></div> </ul> </div> <div class="info_key">相关标签åQ?/div> </div> <div class="clear"></div> <div class="cateslist"> <dl> <dt>相关产品</dt> <dd> <div class="img"> <a href="/supply/35.html" title="GIS高压局部镀é“? rel="nofollow"><img src="http://cmsimgshow.zhuchao.cc/30059/201707031058122623005991839.jpg?path=www.deliciousdoodle.com/uploads/cp/201707031058122623005991839.jpg" title="GIS高压局部镀é“? alt="GIS高压局部镀é“?/></a> </div> <div class="txt"> <a href="/supply/35.html" title="GIS高压局部镀é“? rel="nofollow">GIS高压局部镀é“?/a> </div> </dd> <dd> <div class="img"> <a href="/supply/34.html" title="铜排整体镀é”? rel="nofollow"><img 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