Product Introduction

Brief introduction

Cleanliness analyzerLNF Q220 can achieve the functions of calculating pollution level and intelligent ferrography, automatically classifying particles to determine the cause of equipment wear.

The calculation of pollution level is achieved by directly capturing the morphological characteristics of various solid mechanical particles, automatically calculating the size and quantity of abrasive particles, and automatically calculating the pollution level of oil according to ISO, NAS, and international mainstream pollution evaluation standards. Its detection range is very wide, and it can detect highly polluted oils with pollution levels up to ISO4406 level 27; Moreover, this product does not require calibration and provides a contamination level calibration solution certified by the American Standards Institute for daily calibration.

Cleanliness analyzerThe intelligent ferrography function is to automatically classify abrasive particles: automatically classify abrasive particles in lubricating oil into metal abrasive particles and non-metal abrasive particles according to the wear reasons of the equipment, and classify abrasive particles into cutting wear, contact/sliding wear, fatigue wear, etc; Non metallic abrasive particles are mainly divided into fibers, bubbles, water droplets, etc.

IICommon types of wear and tear

1. Contact wear

The phenomenon of tangential resistance and material loss generated by two relative sliding friction pairs on a common contact area.

Morphological features: Generally slender, with a length to thickness ratio greater than 5, relatively thin and long, and many contact wear will show obvious horizontal stripes.

2. Cutting wear

Cutting abrasive particles are hard particles that enter the gap between two friction pairs and cause surface material detachment during the friction process.

The commonly referred to three body wear is cutting wear. Another situation is caused by secondary wear and tear. If the equipment is worn out and the particles are not filtered out, they will continue to circulate in the oil circuit. At this time, the abrasive particles will be harder than the base material.

So cutting wear is mainly caused by hard particles.

3. Fatigue wear

Fatigue wear: Under the action of alternating contact stress, cracks are caused at weak points on two rolling or sliding contact surfaces, which continuously expand and fracture, resulting in pitting or peeling.