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11 Posts in this encyclopedia categoryRatchet Ring
A ratchet ring, also known as a ring spanner with ratchet function, is a tool used for tightening and loosening bolts and nuts. These tools are especially useful in situations where space is limited and continuous rotation is not possible. Ratchet rings are indispensable in the automotive industry, mechanical engineering, and many craft applications.
Reinforcing Steel (Rebar)
Reinforcing steel, also known as rebar or reinforcement steel, is an indispensable material in construction. It is used to increase the tensile strength of concrete, as concrete itself has high compressive strength but low tensile strength. Reinforcing steel is typically embedded in concrete in the form of rods or meshes to create reinforced concrete, which can resist both compressive and tensile forces.
Riveting
Riveting is a mechanical process for permanently joining components. In this process, rivets, which serve as fasteners, are driven through the materials to be joined and then deformed to create a strong connection. Riveting is used in numerous industries and applications, including construction, aerospace, automotive, and household appliances.
Rolling
Rolling is a forming process in which materials such as metals, plastics, and paper are rolled into the desired shape and thickness. The material is passed between rotating rollers that exert pressure and deform it. This process is widely used in the metalworking, papermaking, and plastics processing industries to produce sheet metal, foil, and profiles.
Rotary hammer
A rotary hammer is a powerful electric tool specifically designed for drilling and chiselling hard materials such as concrete, masonry and stone. With its high impact force and rotational speed, the rotary hammer enables efficient and precise work on heavy construction and renovation projects. It features a robust motor that generates a chiselling motion, allowing material to be broken and fragmented.
Rubber
Rubber is an elastic polymer derived from natural or synthetic sources. It is known for its high elasticity, durability, and versatility, making it an important material in numerous industrial and everyday applications. Natural rubber is obtained from the latex of the rubber tree, while synthetic rubber is produced by polymerizing various monomers.
Rust Formation
Rust formation is a corrosion process in which iron or steel reacts with oxygen and moisture, forming iron oxide, commonly known as rust. This process is one of the most common types of corrosion and can significantly affect the structure and strength of metal objects. Rust formation occurs both in industry and everyday life and requires suitable protective measures to prevent damage to metal structures.
Rust Protection
Rust protection includes various measures taken to prevent or slow down the corrosion of metals, especially iron and steel. Corrosion, which occurs when metal comes into contact with oxygen and moisture, can cause significant damage to structures, vehicles, and machinery. Proper rust protection is therefore crucial to extend the lifespan of metal objects and maintain their functionality.
Rust Removal
Rust removal is an essential process to extend the lifespan of metal surfaces and maintain their aesthetic and functional quality. Rust occurs when iron or steel corrodes due to oxygen and moisture, which can weaken the metal, make it unsightly, and impair its functionality. There are various methods of rust removal, depending on the type and extent of the corrosion.