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12 Posts in this encyclopedia categoryAbrasion (Wear)
Abrasion refers to the mechanical loss of material caused by friction between two surfaces. This process occurs in many areas, such as the wear of shoe soles, car tyres, machine components, or road surfaces. Abrasion is a natural wear process that leads to gradual deformation or wear of the affected materials, which can impair their functionality and lifespan.
Accident prevention regulations
The Accident Prevention Regulations (UVV) are binding rules issued by accident insurance providers, such as the Employers' Liability Insurance Association (Berufsgenossenschaft) or the Fire Service Accident Insurance Fund (Fire Brigade Accident Insurance Fund), to prevent work-related accidents, occupational diseases, and work-related health hazards. The UVV are specifically tailored to the needs and hazards of the respective work areas, including fire service activities. They form the basis for safe work in the fire service and are mandatory for all firefighters.
Acid leak
An acid leak is the uncontrolled release of acids from containers, pipes, or systems. Such incidents pose a significant threat to people, the environment, and infrastructure, as acids are highly corrosive and can cause severe burns, poisoning, and environmental damage. Acid leaks can occur in industrial facilities, laboratories, during transport, or during acid storage.
Adjustable Wrench
An adjustable wrench, also known as a crescent wrench or adjustable spanner, is a versatile hand tool specifically designed to grip and turn bolts and nuts of various sizes. Thanks to its adjustable jaw, the wrench can be adapted to different fastener sizes, making it an essential tool for both workshops and home use.
Air Defense Problem
An air defense problem refers to the challenges and difficulties involved in defending an area or object against enemy air attacks. This includes the detection, tracking, and engagement of aircraft, drones, missiles, and other airborne threats. Air defense problems are particularly complex due to the need for rapid response, advanced technologies, and coordinated cooperation between various systems and units.
Air Pressure Drop
An air pressure drop refers to the reduction of pressure in an enclosed space or system filled with air or another gas. This drop can occur suddenly or gradually and is often considered undesirable, as it can impair the functionality and safety of technical systems. Air pressure drops occur in various applications, from vehicle tires and pressure vessels to pneumatic systems and aircraft.
Allen Key
An Allen key, also known as a hex key or hexagonal key, is a handy tool designed specifically for tightening and loosening internal hex screws. These screws have a hexagonal recess that perfectly fits the Allen key. Allen keys are available in various sizes and are commonly used in furniture assembly, mechanical engineering, and bicycle maintenance.
Aluminium
Aluminium is one of the most commonly used metals in industry and everyday life. It is characterised by its low weight, high strength, and corrosion resistance. This silver-white, lightweight metal boasts low density and considerable strength. Thanks to its corrosion resistance, it is particularly durable and requires little maintenance. These properties make it a valuable material for many applications, including aerospace, the automotive industry, construction, packaging, and electronic components.
Ambulance
An ambulance, also known as an RTW (Rescue Transport Vehicle), is a specially equipped emergency service vehicle designed for emergency medical care and patient transport. The ambulance plays a central role in preclinical emergency care and is equipped to stabilise patients at the scene and subsequently transport them to an appropriate medical facility.
Anchor Bolt
Anchor bolts are indispensable fastening elements used for secure anchorage in concrete, masonry, and other solid substrates. They offer high load-bearing capacity and are resistant to tensile and shear forces, making them ideal for demanding applications in construction, industry and DIY use.
Angle grinder
Angle grinders, also known as cut-off grinders or angle grinders, are versatile power tools used for cutting, grinding, polishing, and derusting materials such as metal, stone, and concrete. They are indispensable in many craft, industrial, and DIY applications. An angle grinder consists of an electric motor that drives a rotating grinding wheel or cutting disc mounted at an angle to the motor's axis.