Wear is a complex field and there are numerous types of wear.
Different types (and combinations) of wear mechanisms requires different approaches to the material selection and design.
Abrasive Wear – occurs when a hard-rough surface slides across a softer surface. Generally, to reduce abrasive wear you need a harder material. Applications include chutes and feed hoppers which see sliding wear.
Erosive Wear – occurs when particles impact the wear surface. As well the gradual removal of material from cutting and gouging actions, the kinetic energy of the impacting particles in can cause surface work hardening and micro cracking which can result in delamination and spalling. Consideration of material-toughness as well material-hardness as well as plant design e.g. particle Impingement Angle and Velocity are important to controll erosive wear. Applications include pneumatic and hydro conveying, grizzlies, screens, and cyclones.
Corrosive Wear -This kind of wear is a mixture of corrosion & wear. The mechanical wear can be significantly increased by chemical reaction between the worn material and the corroding medium in the application environment, e.g. Paddle Mixers in Super Phosphate Production. Material Selection is very important to optimise the corrosion-wear properties of the component.
Malabou Manufacturing Specialise in the manufacture of wear resistant metal components to meet the arduous conditions in Quarrying and mining Industries.
Our team of Metallurgists and Mechanical Engineers will work closely with you to ensure we understand your requirements and meet you needs at globally competitive pricing.
We offer a range of Wear resistant casting materials and full heat treatment capability to optimise material properties to meet your requirements.
Introduction This is a complex subject in part due to the time dependant mechanical behaviour of metals under load at elevated temperature. At room temperature, we understand that a part is failing once it is past it’s yield point – plastic deformation is occurring. The part is completely destroyed once…
Malabou cast special alloys that allow for castings to be used at elevated temperature’s, in some cases in excess of 1000°C. These heat resistant casting alloys consist of predominantly of combinations of nickel, chromium and iron together with small percentages of other elements. Castings made of these high temperature alloys…
Of course many of you will know the answer, some of you won’t & some of you will be surprised by the answer. Malabou specialises in making castings in stainless, alloy, mild, and tool steels and we are often asked this question. Background Metallurgy. At room temperature, Mild Steel is…