ICorr Coating Inspection - Mandatory Course

Introduction to Abrasive Blast Cleaning

An introduction to the Abrasive Blast Cleaning Process

8 Lessons
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Lesson 1 - General Overview

GENERAL OVERVIEW INTRODUCTION

Objective

The objective of this training unit is to gain an understanding of the many applications of abrasive blast cleaning and the various uses of preparation. Also to appreciate the role of the abrasive blast cleaning operator for industrial applications.

  • Abrasive blast cleaning is one of the most effective methods of surface preparation used for cleaning surfaces prior to application of industrial coatings.

Lesson 2 - Basic Corrosion

BASIC CORROSION INTRODUCTION

Objective

The objective of this training unit is to gain a basic understanding of the corrosion process relating to steel structures. Also, gain an appreciation of how corrosion can be controlled by abrasive blast cleaning and coating application. Some basic chemistry will be used.

  • In every form of life where steel is used, you will generally see evidence of corrosion, which is more evident when little maintenance is conducted

Lesson 3 - Mill Scale

MILL SCALE INTRODUCTION

Objective

The objective to this training unit is to gain a basic understanding of how mill scale is formed and the importance of its removal during abrasive blast cleaning.

  • The abrasive blast cleaning operator will undoubtedly see mill scale during their duties.
  • The most effective method to mechanically remove mill scale is with abrasive blast cleaning.

 

Lesson 4 - Substrate Materials

SUBSTRATE MATERIALS INTRODUCTION

Objective

The objective of this training unit is to gain an understanding of the various substrates that may require abrasive blast cleaning in some form or another.

  • The abrasive blast cleaning operator may encounter a number of substrates that require abrasive blast cleaning as a method of surface preparation.

 

Lesson 5 - Pre-Surface Condition

PRE-SURFACE CONDITION INTRODUCTION

Objective

The objective of this training unit is to understand the importance of pre-surface condition requirements on steel surfaces and implications on coating performance.

  • Coating performance is dependent upon the level of surface preparation.
  • Abrasive blast cleaning will NOT remove defects in the steel.
  • Pre-surface preparation is a requirement prior to the abrasive blast cleaning process.

Lesson 6 - Mechanical Blast Cleaning Equipment

MECHANICAL BLAST CLEANING EQUIPMENT INTRODUCTION

Objective

The objective to this training unit is to gain an understanding of mechanical surface preparation using centrifugal blast cleaning equipment.

  • Centrifugal blast cleaning equipment is widely used to blast clean structural steelwork.
  • Centrifugal blast cleaning is a method of surface preparation widely used by steel shops, fabrication facilities, shipyards etc.

Lesson 7 - Types of Air Blast Equipment

TYPES OF AIR BLAST EQUIPMENT INTRODUCTION

Objective

The objective to this training unit is to gain a thorough understanding of the air blast cleaning equipment available

There are two main methods of air blast equipment used in the surface treatment industry:

  • Suction types.
  • Pressure types.

Both types will be reviewed in this unit.

Lesson 8 - Wet Abrasive Blast Cleaning

WET ABRASIVE BLAST CLEANING INTRODUCTION

Objective

The objective of this training unit is to understand how and when wet abrasive blast cleaning is conducted and the equipment types utilised.

  • Wet abrasive blast cleaning is increasing in popularity due to environmental advantages.
  • Most major paint suppliers have developed coatings for wet abrasive blast cleaned substrates.