Introduction to the basic knowledge and use of rivets

Rivets are parts that use their own deformation or interference to connect the riveted parts during riveting. There are many types of rivets, and they are informal. Commonly used are round head, flat head, countersunk head rivets, blind rivets, hollow rivets, which are usually connected to the riveted parts by their own deformation. There are many types of rivets BS countersunk rivets, BS tubular rivets, BS flat cone rivets, BS Flat head rivets, BS round head rivets, BS headless rivets, BS big round head rivets, BS round head rivets, BS flat head rivets, BS flat, BS cylindrical head semi-tubular rivets, BS yellow rivets, BS flat head rivets, BS round head rivets, BS core rivets, BS cone head rivets, BS pull rivets, BS core rivets, BS semi-tubular rivets, BS label rivets, BS semi countersunk head rivets, BS countersunk rivets, BS tubular rivets, BS flat cones Head rivets, BS flat head rivets, BS round head rivets, BS headless rivets, BS big round head rivets, BS round head rivets, BS flat head rivets, etc., geographical restrictions have also produced many names, but in In the specification, it should be specified in detail: head shape diameter * head thickness * pipe diameter * length (not including head thickness) * hole diameter * hole depth. Normally, the hole diameter and depth can be omitted if there are standards. If you don't have drawings or pictures, you should include these elements, and then tell the materials, you can basically produce directly. (Guide: An introduction to the processing technology of high-strength bolts)

Hollow rivets are usually used in clothing, footwear and other industries. Solid cores need to be riveted again. They are used to connect heavy workpieces. They are often non-detachable structures. Semi-hollow rivets are the most widely used. Made of hard wire, it can penetrate steel plates with a thickness of 0.5mm without pre-holes. The rivets cannot be bent and deformed. They are widely used in password boxes, suitcases and military luggage. Hollow nails (semi-hollow rivets) are made of soft wires. Generally After riveting, it is required to not crack. There are many types. At present, semi-hollow nails or composite nails have been used to replace the axles on some toys, which can greatly reduce the production cost. Core pulling and core rivets are mostly used for riveting of thinner and soft materials, and the requirements are generally not strict. The materials used for manufacturing are usually produced with materials with better plasticity.

Semi-round head rivets are mainly used for riveting occasions with larger lateral loads, and are the most widely used. Flat cone-head rivets are corrosion resistant due to their fat heads. They are often used in riveting occasions with strong corrosion such as ship hulls and boiler water tanks. Countersunk head and 1200 countersunk head rivets are mainly used for riveting occasions where the surface must be smooth and the load is not large. Semi countersunk head and 1200 semi countersunk head rivets are mainly used for riveting occasions where the surface must be smooth and the load is not large. Flat head and oval head rivets are mainly used for riveting occasions of metal sheets or non-metallic materials such as leather, canvas, and wood. Large flat head rivets are mainly used for riveting non-metallic materials. Semi-tubular rivets are mainly used for riveting occasions with low load. Headless rivets are mainly used for riveting applications of non-metallic materials. Hollow rivets are light in weight and weak in nail heads. They are used for riveting non-metallic materials with low load. Tubular rivets are used for riveting non-metallic materials without load. Sign rivets are mainly used for riveting nameplates on machines and equipment. Blind rivets are a type of rivets used for single-sided riveting, but a special tool must be used to pull the riveting gun (manual, electric, manual) for riveting. This type of rivet is especially suitable for riveting occasions where it is inconvenient to use ordinary rivets (riveting from both sides), so it is widely used in construction, automobiles, ships, airplanes, machinery, electrical appliances, furniture and other products. Among them, the open-type oblate head blind rivets are the most widely used, the countersunk head blind rivets are suitable for riveting occasions that require smooth performance, and the closed type blind rivets are suitable for riveting occasions that require higher loads and have a certain sealing performance. Core rivets are another type of single-sided riveting rivets. When riveting, tap the head of the rivet with a hand hammer to expose the mandrel so that it is flush with the end face of the head of the nail to complete the riveting operation. It is very convenient and especially suitable for inconveniences. Riveting occasions using ordinary rivets (riveting from both sides) or blind rivets (lack of riveting gun). Generally, oblate head punching rivets are used, and countersunk head punching rivets are suitable for occasions where a smooth surface is required for riveting.

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