Before we dive into the case study, a little background information may be necessary. An iron ore pellet is a tiny iron ore ball (between 8 and 18mm of diameter) composed of pellet feed and iron ore fines, which are the finest forms of the iron ore, mixed with a flux (in Brazil usually limestone) and a thickener, which gives the pellets their consistency.
The 10th edition of the PLASTINDIA Exhibition and Conference took place from 7th to 12th February 2018. PLASTINDIA is the most significant exhibition on plastics in India and offers a unique overview of the world of plastics in fifteen exhibition halls on a gross area of 125.000 sqm. Like the previous exhibitions, PLASTINDIA 2018 was hosted at the exhibition center Helipad Grounds in Gandhinagar - Ahmedabad (Gujarat, India).
This is part 3 of our series on surface treatments of components. Due to the great number of different chemical processes, we have split them up and explored these processes in the previous article:
- Chromate conversion coating
- Black oxide.
This blog article covers the remaining chemical processes commonly applied for the treatment of component surfaces.
In our first blog article we presented the most common mechanical processes for the treatment of component surfaces. In this second part, we address the most frequently used methods of chemical surface treatments. The decision as to which of the following treatments should be applied is predominantly influenced by design points of view, technical aspects and the intended appearance of the product.
The surface finish of components used in the field of mechanical engineering as well as of other products is not only determined from a design point of view, but is mainly defined by the technical aspects. From the onset, the specification of the requirements regarding the condition of component surfaces, e.g. of a shaft coupling, often has far-reaching consequences on the product development process, the resulting costs and, eventually, on the succes of the final product.
Steel is an essential part of our everyday life and especially in mechanical engineering an indispensable material. We would not be where we are today without it. Through research the areas of applications are broadening, new types of steel are developed and cover even more areas. It is astonishing how many varieties are available.
We have previously reported about various elastomeric materials and their properties as well as the applications they can be used for in the field of mechanical engineering. This article is in reference to the raw material natural rubber or caoutchouc. For example, did you know that its natural color is white? Or how many tons are produced and processed every year? Everybody knows caoutchouc, but very few are familiar with its properties and for which applications it can be used. Here are 10 facts about natural rubber you may have not heard about before.
Elastomers are polymeric materials which have the property of high elasticity. By virtue of this elasticity in combination with their damping capability, elastomers are the preferred material for use as transmission elements in elastic or highly elastic couplings. 
One of the distinguishing properties of elastomers is their high elasticity. The main characteristics of elastomers present themselves, in particular when comparing them to steel. Below we would like to elaborate on the main properties of elastomers in more detail. Figure 1 shows the main characteristics of elastomers. They are able to combine spring properties as well as damping ability in one component.