安美特++电镀基础知识培训

Atotech (China) Chemicals Ltd.SH 安美特上海青浦分公司

PRESENTS

ELECTROPLATING

TRAINING

电镀培训

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

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.

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.

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）

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.

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.

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 6.9 BEING ACIDIC AND7.1 TO 14 ALKALINE AND 7.0 BEING NEUTRAL.

小于7的为酸性，大于7且小于等于14的为碱性，7.0为中性

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

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)

WHAT ARE THE SOURCES OF METAL IONS ?

金属离子来自何处？

♌METAL SALTS IN PLATING SOLUTION

电镀液中的金属盐

♌SOLUBLE METAL ANODES

可溶性的金属阳极

WHAT ARE ANODE BAGS ?

什么是阳极袋？

ANODE BAGS ARE POROUS MEMBRANES PLACED AROUND ANODES TO COLLECT SLUDGE FORMING ON THE DISSOLVING ANODE 阳极袋是包扎在阳极外面,会将电镀过程中产生的阳极泥收集在袋内的多孔的袋。