rivets are nail-shaped objects used to connect two parts (or components) with through holes and a cap at one end. In riveting, the riveted parts are connected by their own deformation or interference. There are many kinds of rivets, and they are informal.
commonly used are R-type rivets, fan rivets, core-pulling rivets (core-striking rivets), tree rivets, semi-circular heads, flat heads, semi-hollow rivets, solid rivets, countersunk rivets, core-pulling rivets and hollow rivets, which are usually connected by their own deformation. Generally, cold riveting is used for those smaller than 8 mm, and hot riveting is used for those larger than this size. But there are exceptions, such as the nameplate on some locks, which is riveted by the interference between rivets and lock body holes.
R-type plastic rivet, also known as expansion rivet, consists of plastic sub-nail and female buckle. When it is installed, there is no need to use installation tools, the installation base is placed in a smooth hole, and then the head is pressed, and the specially designed feet expand and spread after being stressed, and are firmly locked on the installed surface. It is often used to connect plastic shells, light plates, insulating materials, circuit boards, or any other light and light materials, which is beautiful, practical and convenient to use.
The fan rivet is specially designed for manual installation, which can be pulled in through the hole of the panel or chassis. It is made of elastomer material and has good toughness, and can be installed quickly even in interference fit. The design is ingenious and elastic, and it is not easy to slide out after being pulled in with the corresponding aperture. The fan rivet is mainly used for fixing the fan, heat sink and chip of the computer case, which has the functions of vibration prevention and noise reduction.
The origin of the development of rivets
The earliest rivets are small pegs made of wood or bone, and the earliest metal deformation may be the ancestors of rivets we know. There is no doubt that they are the oldest known metal connection method, which can be traced back to the original use of malleable metals. For example, in the Bronze Age, the Egyptians riveted six wooden sectors on the outer line of grooved wheels together, and the Greeks successfully cast large statues in bronze, and then riveted all the parts together with rivets.
in p>1916, when H. v. white of British aircraft manufacturing company first obtained the patent of blind rivet that can be riveted on one side, people hardly expected that this kind of rivet would be so widely used. From aerospace to office machines, electronic products and playground equipment, it can be said that this blind rivet has become an effective and stable mechanical connection method. It is not clear when the hollow rivet was invented, but the harness was invented in the 9th or 1th century. Riveted harnesses, like horseshoes with nails, freed slaves from heavy labor, and rivets also led to many important inventions, such as iron pliers for copper and iron workers and sheep hair scissors.