Monday, July 30, 2012

[metal] - GalvInfo Series Hop Dip Metal Coating : tài liệu training về mạ kẽm nhúng nóng cơ bản nhất

của GalvInfo Centre, cơ bản nhất về ngành thép mạ kim loại



GalvInfo Notes Table of Contents
For Use With Printed Collections of GalvInfoNotes
1. Metallic-Coated Products and Specifications
1.1 Understanding Coating Weight Designations for Zinc-Based Coatings on Steel Sheet
1.2 Hot-Dip Coated Sheet Products
1.3 Galvanneal - Differences from Galvanize
1.4 55% Aluminum-Zinc Alloy-Coated Steel Sheet
1.5 ASTM Standards for Coated Sheet Products
1.6 Selecting Coating Thickness (Weight or Mass) for Galvanized Steel Sheet Products
1.7 Advantages of Metallic-Coated Steel Framing in Residential Buildings
1.8 Steels Used in Coated Sheet Products
1.9 Zinc-5% Aluminum Alloy-Coated Steel Sheet
1.10 Useful Galvanized Sheet Metrics

2. Coating Processes and Surface Treatments
The Continuous Hot-Dip Coating Process for Steel Sheet Products
The Continuous Electroplating Process for Steel Sheet Products
Continuous Hot-Dip Galvanizing versus General (Batch) Galvanizing

 2.4 The Role of Aluminum in Continuous Hot-Dip Galvanizing
Zinc Bath Management on Continuous Hot-Dip Galvanizing Lines
Control of Coating Weight (Mass) for Continuous Hot-Dip Galvanized Sheet Products
The Spangle on Hot-Dip Galvanized Steel Sheet
 2.7 Galvanizing – The Use of Chemical Fluxes
Improving Uniformity of Appearance
 2.9 Treatments for Enhancing Formability
2.10 Imparting Resistance to Storage Stain
2.11 Preparing Galvanize for Field Painting
2.12 Pretreatments for Metallic-Coated Sheet
2.13 Treatments for Resistance to Handling and Fingerprint Marks

3. Corrosion – Mechanisms, Prevention, and Testing
How Zinc Protects Steel
Protecting Galvanized Steel Sheet Products from Storage Stain
Dark-Colored Stains on Galvannealed Sheet
The Salt Spray Test
Fretting Corrosion (Transit Abrasion) on Galvanized Sheet

 4. Prepainted Metallic-Coated Steel Sheet
Introduction to Painted, Metallic-Coated, Steel Sheet Products
Prepainted Metallic-Coated Steel Sheet for Building Panels – Assuring Good Performance
Repair Painting of Prepainted Metallic-Coated Steel Sheet
 5. General Coated Sheet Topics
Hardness Measurement of Coated Sheet
Zinc Grades Used for Continuous Hot-Dip Galvanizing