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Search Results for: steel

Steel for clean air compressors

Compressor valves are important compressor components. They are found in automotive air conditioning systems and in household refrigerators, for example, i.e., devices that convert heat to cold. Consisting of a hardened steel spring, these valves are subject to very high cyclic loads as they open and close. Small and thin, these valves have a frequency of between 60 strokes (Hz) per minute – fast as a hummingbird’s wings – and 200 Hz in more modern compressors. “There is a lot going on with compressors these days,” says Stefan Jonsson, Senior Application Specialist at Sandvik Materials Technology, which develops and...

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There is more to steel than steel

There is great potential in the iron and steel industry to use residues in a resource-efficient and environmentally sensitive manner. In 2010, five million tons of iron and steel products were produced in Sweden that generated approximately two million tons of waste products. Metallurgical slag accounted for about half of the amount and the rest consisted of dust, sludge and residues from coke ovens. Slag is the active component of the metallurgical process and provides the steel with its desired properties. The amount of slag is equal to the amount of steel produced. Where do all these residues go?...

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The time is ripe for lead-free steel

In Sweden’s national environmental quality objective ‘A non-toxic environment,’ lead is described as a hazardous substance for both people and the environment. The use of lead has been regulated for a long time, but still there are many items that use lead in their production. Lead is added to steel to produce precision parts in watches for example. New materials available today offer the possibility of phasing out lead altogether in the manufacturing of precision parts. There are many products around us with small mechanical parts and where the demands are high on durability. This includes everything from ABS brakes,...

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High-tensile steel provides better environmental performance

Lightweight, high-strength steel offers material savings both in its production and for end-users like transport vehicles, loaders and cranes. High-strength steel provides a longer life and offers lower fuel consumption. These are characteristics that are increasingly in demand as rising energy prices and increased environmental awareness come into focus. This is SSAB’s way of leveraging its high-strength steel on the environment. But iron ore-based steel manufacturing creates large emissions of carbon dioxide. SSAB is already a world leader in reducing emissions from production and continuously tweaks its processes. SSAB actively participates in international research projects aiming to halve carbon...

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Formable sandwich material saves weight

Hybrix is a unique lightweight material made from thin microfiber-laminated metal sheets. It can be used as facade material, in interiors, and in many other applications. Compared to traditional metal half the weight can be saved, and much of the environmental impact.

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Textile biogas reactors

Twenty-five years ago, textile company FOV Fabrics filed a patent for a unique silicone coated fabric for car airbags. Thin, low-weight and softer than alternatives, it reduced the risk of scratches and burns from the airbag inflation. Back then, the fabric was unmatched. Airbags are now standard equipment in vehicles, and the once ground-breaking innovation has been exposed to competition. “We are still manufacturing airbag fabrics, but over the years, we have continued to develop other technical textiles with special properties”, says Fredrik Johansson, Business developer at FOV Biogas and Chairman of the board at FOV. Biogas in one...

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Energy innovation recovers the lost heat

Climeon’s modular system converts low temperature waste heat and geothermal heat to electricity, addressing an unexplored market. Ultimately, the company aims to replace fossil fuel based electricity production entirely.

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The Swedish project Advantage Environment provides information about existing and future products designed to reduce environmental impacts.

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