Large Flat Round Head Rivet

The large flat round head rivet is a common type of rivet. The following is an introduction from aspects such as its structural characteristics, materials, specifications, surface treatments, applications, and installation methods:

Structural Characteristics of the Large Flat Round Head Rivet

The large flat round head rivet is composed of two parts: the head and the shank. The head is flat and round, and its diameter is relatively large, usually much larger than the diameter of the shank. This design enables the rivet to provide a large support area and a good appearance effect after riveting. The shank is cylindrical and generally has a solid structure. The tail can be processed according to needs, such as being made into a chamfer or other shapes to facilitate insertion into the holes of the parts to be riveted.

Material Selection of the Large Flat Round Head Rivet

Carbon steel: It has high strength and hardness and can withstand large tensile and shear forces. It is suitable for fields such as general mechanical manufacturing and building structures that require high strength.

Stainless steel: It has excellent corrosion resistance and oxidation resistance and can maintain good performance in corrosive environments such as humid conditions and acid-base environments. It is commonly used in occasions with strict requirements for corrosion resistance, such as food processing equipment, medical devices, and marine engineering.

Aluminum alloy: It is lightweight, has a high specific strength, and also has good corrosion resistance. It is widely applied in fields such as aerospace, automotive manufacturing, and electronic equipment, which can effectively reduce the structural weight.

Copper and copper alloys: They have good electrical conductivity, thermal conductivity, and corrosion resistance. They are commonly used in products with requirements for electrical and thermal conductivity, such as electrical equipment and communication equipment. They can also be used in some occasions that require good corrosion resistance and decorative effects.

Specifications and Dimensions of the Large Flat Round Head Rivet

Diameter: The diameter range of the large flat round head rivet is usually between 3mm and 20mm. Common specifications include 3mm, 4mm, 5mm, 6mm, 8mm, 10mm, etc. Rivets of different diameters are suitable for materials to be riveted with different thicknesses and strength requirements.

Length: The length is generally between 6mm and 50mm. The specific length is selected according to the total thickness of the actually riveted workpieces to ensure that the rivets can provide sufficient fastening force after riveting.

Surface Treatments of the Large Flat Round Head Rivet

Galvanizing: It can be divided into various types such as white zinc plating, blue-white zinc plating, and colored zinc plating. It can effectively prevent the rivets from rusting, improve their corrosion resistance, and increase the surface aesthetics at the same time. It is widely used in general industrial products and the construction field.

Nickel plating: The nickel plating layer has good corrosion resistance, wear resistance, and gloss, which can make the surface of the rivets smoother and more beautiful. It is commonly used in products with high requirements for appearance quality and corrosion resistance, such as high-end furniture and decorative hardware.

Chrome plating: Chrome plating can improve the hardness and gloss of the surface of the rivets, giving them good wear resistance and corrosion resistance. It is commonly used in products with high requirements for both appearance and performance, such as automotive parts and bathroom fixtures.

Blackening treatment: Through the blackening treatment, a black oxide film is formed on the surface of the rivets. It not only has a certain anti-rust effect but also makes the appearance of the rivets more solemn and stable. It is commonly used in mechanical parts and tools with specific requirements for appearance color.

Application Fields of the Large Flat Round Head Rivet

Automotive manufacturing: It plays an important role in the assembly of automotive bodies, the connection of engine components, and the fixation of interior parts. For example, large flat round head rivets are usually used for the connection of parts such as car doors, engine hoods, and trunk lids to ensure the firmness of the connection and the overall strength of the body.

Aerospace: It is used for the connection of aircraft structural components, such as the riveting of parts like wings and fuselage skins. Due to the extremely high requirements for structural weight and strength in the aerospace field, large flat round head rivets are usually made of materials such as high-strength aluminum alloys or titanium alloys to reduce weight while ensuring structural strength.

Electronic equipment: It is widely used in the assembly of electronic equipment casings and the fixation of circuit boards. For example, small large flat round head rivets are usually used for the connection of the casings of products such as laptops, tablets, and mobile phones to ensure the sealing and stability of the casing and also maintain the beauty of the appearance.

Furniture manufacturing: It can be used for the connection of furniture frames, the splicing of panels, and the fixation of decorative parts. For example, in the connection of furniture frames such as chairs and tables and the splicing of the side panels and top panels of wardrobes, large flat round head rivets can not only provide reliable connection strength but also make the appearance of the furniture more beautiful.

Architectural decoration: It is applied in the installation of building curtain walls, the fixation of doors and windows, and the laying of ceilings and floors. The large flat round head design of the large flat round head rivets can provide a large support area, making the connection more secure, and its beautiful appearance can also meet the requirements of architectural decoration.

Installation Methods of the Large Flat Round Head Rivet

Manual riveting: Manual tools such as rivet guns or hammers are used for riveting operations. This method is suitable for small-batch production or maintenance occasions. It is relatively simple to operate, but the efficiency is low, and the quality of riveting is greatly affected by the technical level of the operator.

Mechanical riveting: Mechanical equipment such as pneumatic rivet guns, hydraulic rivet guns, or automatic riveting machines is used for riveting. Mechanical riveting has the advantages of high efficiency and stable riveting quality and is suitable for mass production occasions. During the mechanical riveting process, the equipment can accurately control the riveting force and the riveting stroke to ensure that the riveting quality of each rivet is consistent.

Blind riveting: For occasions where riveting cannot be carried out from the back, the blind riveting method can be used. When blind riveting, the blind rivet is first inserted into the hole of the part to be riveted, and then the mandrel of the blind rivet is pulled off using a blind rivet gun to form a riveting shape at the head of the rivet, thus achieving the connection. Blind riveting has the advantages of convenient and quick operation and is commonly used for the connection of thin plate materials or the riveting of closed structures.