文档介绍：Atotech (China) Chemicals 安美特上海青浦分公司
PRESENTS
ELECTROPLATING
TRAINING
电镀培训
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OUTLINE 内容提要
INTRODUCTION
介绍
ELECTROCHEMISTRY
电化学
CLEANING & PREPLATE
清洗及预镀
NICKEL 镍
Copper 铜
DECORATIVE CHROMIUM
装饰铬
TESTING
测试
FILTRATION
过滤
TROUBLE SHOOTING
故障处理
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WHAT IS ELECTROPLATING ? 什么是电镀?
THE DEPOSITION OF A METALLIC COATING UPON A NEGATIVELY CHARGED CATHODE BY THE PASSING OF AN ELECTRIC CURRENT
在电流通过时,有金属层沉积在带负电荷的阴极表面.
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WHAT IS THE PURPOSE ? 电镀的目的是什么?
TO OBTAIN A METALLIC COATING HAVING CERTAIN PROPERTIES SUCH AS HARDNESS, BRIGHTNESS, CORROSION RESISTANCE AND TO REPRODUCE IDENTICAL FORMS IN ELECTROFORMING.
是为了得到具有某种特性的金属层,如:硬度、光亮度、耐腐性及在电铸方面复制同样的形状.
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REQUIREMENTS 要求
SOURCE OF DIRECT CURRENT
直流电源
A PLATING TANK
电镀槽
A SOLUTION CONTAINING THE DISSOLVED SALTS OF THE METAL TO BE PLATED
含有待镀的可溶性金属盐的溶液
ANODE ( POSITIVE ELECTRODE )
阳极(正电极)
A PREPARED OBJECT - CATHODE ( NEGATIVE ELECTRODE )
准备好的待镀工件--阴极(负电极)
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WHAT IS DIRECT CURRENT ? 何为直流电?
THE FLOW OF ELECTRONS IN THE SAME DIRECTION BETWEEN POSITIVE AND NEGATIVE ELECTRODES
在正负电极之间电子向同样的方向移动.
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WHAT IS A PLATING SOLUTION ? 电镀液是什么?
A CONDUCTING MEDIUM FOR THE MOVEMENT OF METAL IONS IN SOLUTION BETWEEN AN ANODE AND A CATHODE
溶液中在阳极与阴极间金属离子移动的导电介质.
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WHAT IS pH ? 什么是pH值?
THE MEASUREMENT OF ACIDITY OR ALKALINITY
用来度量酸碱度的
ON A SCALE FROM 0 TO 14
pH值的范围处于0-14之间
0 TO BEING ACIDIC AND TO 14 ALKALINE AND BEING NEUTRAL.
小于7的为酸性,大于7且小于等于14的为碱性,
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HOW ARE PLATING SOLUTION MAINTAINED ? 如何维护电镀液?
CHEMICAL ANALYSIS OF THE CONSTITUENTS
持续的化学分析
HULL CELL PLATING TESTS 赫氏槽电镀测试
ADDITION OF CHEMICALS 添加化学品
ELIMINATION OF CONTAMINANTS 去除污染物
PERIODIC PURIFICATION 定期净化
REGULAR INSPECTION OF PARTS FOR DEFECTS
缺陷/次品的常规检查
PHYSICAL TESTING 物理测试
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WHAT IS A METAL ION ? 什么是金属离子?
A METAL ION IS AN ATOM OF A METAL HAVING A POSITIVE ELECTRICAL CHARGE
金属离子是带正电荷的金属原子(失去电子)
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