- 1、本文档共5页,可阅读全部内容。
- 2、有哪些信誉好的足球投注网站(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
- 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
- 5、该文档为VIP文档,如果想要下载,成为VIP会员后,下载免费。
- 6、成为VIP后,下载本文档将扣除1次下载权益。下载后,不支持退款、换文档。如有疑问请联系我们。
- 7、成为VIP后,您将拥有八大权益,权益包括:VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
- 8、VIP文档为合作方或网友上传,每下载1次, 网站将根据用户上传文档的质量评分、类型等,对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档
查看更多
PAGE2 / NUMPAGES2
第五章-电镀与化学镀-医药卫生
Electroplating is an electrochemical process by which metal is deposited on a substrate by passing a current through the bath.
第五章 电镀与化学镀(Electroplating Electroless plating)
Electroplating is an electrochemical process by which metal is deposited on a substrate by passing a current through the bath.
Introduction Electroplating is an electrochemical process by which metal is deposited on a substrate by passing a current through the bath. Usually there is an anode (positively charged electrode), which is the source of the material to be deposited; the electrochemistry which is the mediμm through which metal ions are exchanged and transferred to the substrate to be coated; and a cathode which is the substrate (the negatively charged electrode) to be coated. Plating is done in a plating bath which is usually a nonmetallic tank (usually plastic). The tank is filled with electrolyte which has the metal, to be plated, in ionic form.
Electroplating is an electrochemical process by which metal is deposited on a substrate by passing a current through the bath.
The anode is connected to the positive terminal of the power supply. The anode is usually the metal to be plated (assμming that the metal will corrode in the electrolyte). For ease of operation, the metal is in the form of nuggets and placed in an inert metal basket made out non-corroding metal (such as titaniμm or stainless steel). The cathode is the workpiece, the substrate to be plated. This is connected to the negative terminal of the power supply. The power supply is well regulated to minimize ripples as well to deliver a steady predictable current, under varying loads such as those found in plating tanks.
Electroplating is an electrochemical process by which metal is deposited on a substrate by passing a current through the bath.
As the current is applied, positive metal ions from the solution are attracted to the negatively charged cathode and de
您可能关注的文档
- 张家溪大桥边坡支护施工组织设计-医药卫生.docx
- 桥梁隧道施工监控与检测讲稿-医药卫生.docx
- 2009国家司法考试试卷――参考答案-医药卫生.docx
- 小学文科教学仪器配备标准-医药卫生.docx
- 隧道地质超前预报(何发亮)-公务员考试.docx
- 生物体的结构层次测试题-医药卫生.docx
- 家装,工装,环艺报价-医药卫生.docx
- 数学考试答卷模板-公务员考试.docx
- 2009年广东省高考物理试题(A卷)-公务员考试.docx
- 一年级下册《求比一个数多几或少几的数》的教学反思-医药卫生.docx
- 七章货物的保险.pptx
- 三章国际间接投资.pptx
- 人性假设理论.pptx
- 外研高一英语必修三ModuleIntroduction汇总市公开课获奖课件省名师示范课获奖课件.pptx
- 月相成因优质获奖课件.pptx
- 小学二年级语文课件《狐假虎威》省名师优质课赛课获奖课件市赛课一等奖课件.pptx
- 养羊业概况专题知识讲座.pptx
- 微生物的实验室培养市公开课获奖课件省名师示范课获奖课件.pptx
- 人教版六年级下册式与方程整理与复习市公开课获奖课件省名师示范课获奖课件.pptx
- 必威体育精装版高中精品语文教学:第二单元-第7课-诗三首:涉江采芙蓉、-短歌行、归园田居市公开课获奖课件省名师.pptx
文档评论(0)