Abrasive Wear Testing | Service

Overview

Why Abrasive Wear Testing?

Abrasive wear is a result of hard and often angular particles sliding or impacting against a softer surface.

Wear of equipment can be a costly problem when storing and handling abrasive bulk materials such as iron ore, roofing granules, glass, alumina, fly ash, clinker, sand, and copper concentrate. These solids can rapidly erode steel surfaces used in silos, hoppers, transfer chutes, screws or vibratory feeders.

Chute impact zone for abrasive wear.

Abrasive wear test setup.

Abrasive wear test results.

Abrasive sintered iron ore

Abrasive and coarse solid rocks.

Wear liners within a hopper.

Factors

Common Factors Affecting Abrasive Wear

Particle hardness
Surface hardness and toughness
Velocity of particles across surface
Solids pressure against surface
Flow rate
Impact angle
Temperature
Particle size, shape, distribution

Knowing how abrasive a bulk material can be will help the designer to select a suitable abrasion resistant liner or different wear strategy (i.e., rock box, micro-ledges) to ensure equipment longevity, reduce maintenance requirements and liner replacement costs.

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Approach

Abrasive Wear Tests

Several tests can be performed to evaluate abrasive wear behavior.

Sliding: evaluate abrasive wear with silos, hoppers, chutes with bulk material sliding along surface
Impact: evaluate abrasive wear with hoppers or chutes where drop height or velocity causes damage

For analyzing sliding wear, we use our patented wear tester with your abrasive bulk solids and representative process conditions. Click here for a review of abrasive wear estimation. For impact wear, we set up a physical model to accurately perform these tests while investigating the effects of major variables.

Results

Abrasive Wear Test Results

The abrasive wear test results are presented in a thorough report which contains:

Overview of wear testing apparatus and experimental method
Results in graph and table formats
Qualitative observations of unique test phenomena
Conclusions and recommendations

One of our engineers will review the abrasive wear test results with you. We will answer questions you may have regarding the report content, as well as discuss usage of the results for your abrasive wear applications.

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