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Solutions for the rail transportation fastener industry

Jan. 13, 2024

As a green mode of transportation, rail transit plays an indispensable role in the national "carbon peak, carbon neutral" and other significant strategies, giving it a massive advantage in environmental protection, high efficiency, and energy savings. In the future, the rapid development of rail transportation and the railroad intelligent construction market will be represented by digital, informationized, and innovative equipment and systems.

Juxin Fasteners, as a digital production manufacturer of industrial fasteners, follows the pace of the market, continuously strengthens safety and quality, and improves the service guarantee and comprehensive strength to make the train more reliable, faster, and on time, more and more use to light materials and intelligent warehousing inventory, shorten the production time of the train, lean train maintenance. Juxin Fasteners can provide customers with higher quality, digital, and intelligent fastener solutions to help them reduce costs and increase efficiency.

There are basic types of rail transit: streetcars, underground railways, light rail transit, suburban railroads, monorail, new transit systems, and maglev transit.

In the professional field, "light rail" and "subway" are distinguished by the different adaptability of the line, "light rail" refers to the ability to mix with motor vehicles and urban rail transit systems. In contrast, the "subway" refers to the ability to integrate with motor vehicles. "Subway" refers to an urban rail transit system that cannot mix with motor vehicles.

Vehicles generally consist of a vehicle body, power and non-power bogies, traction buffer connecting devices, braking devices, flow receiving devices, vehicle electrical systems, and other components.

Body refers to the passenger visible, including the roof, lamps, luggage racks, seats, etc. As the body fasteners commonly use stainless steel rivet nuts, stainless steel rivets, stainless steel rivets, stainless steel hexagonal flange bolts, and stainless steel lock nuts, their safety, aesthetics, and practicality are extremely high requirements. The vehicle bogie part structure is solid and biased toward the turning part; the safety of its fasteners and reliability requirements are incredibly high, so more stainless steel fasteners are used.

1. Many used rivet nuts, structural rivets, and other fasteners.

Rivet nuts can be divided into flat heads, small heads, and countersunk heads according to the head type and structure, can be divided into through-hole and blind holes, can be riveted with the riveting plate, and can be divided into hexagonal and cylindrical. Material can be aluminum, steel, stainless steel, and other options. Wide range of thickness of applicable rivet plate, reliable quality, easy to install, strong load-bearing capacity.

2. In some parts that need to carry the force, you can choose structural rivets relative to ordinary rivets, which have a higher strength, anti-loosening ability, and higher safety performance. Products mainly include internal locking wire rivets, external locking wire rivets, seahorse nails, single drum rivets, multi-drum rivets, etc.

3. In some aluminum panels that need to provide the strength of their threaded connections, there will be a large number of steel wire screws or self-tapping steel screws. The general material of the steel wire sleeve is stainless steel; the self-tapping steel sleeve is generally made of carbon steel; stainless steel can also be selected. The difference is that the steel sleeve is a complete structure, while the steel wire sleeve is a diamond-shaped steel wire through the spiral and the formation. In the connection structure, the use of a steel wire sleeve can significantly improve the screw connection wear resistance to avoid damage to the connection thread to provide the reliability of the threaded connection. At the same time, the steel wire screw sleeve part of the thread deformation can play the role of locking anti-loosening.

Self-tapping steel screw sleeve installation does not require pre-processing of the thread; you can rely on its self-tapping threads on the work piece to process the thread, with the ability to resist vibration to prevent loosening. At the same time, surface treatment can be carried out to improve corrosion resistance and commonly used 302 type self-tapping screw sets, 303 type thin-walled groove type self-tapping screw sets, 307 and 308 type three-hole self-tapping screw sets, pin screw sets, and so on.

4. For rail transit vehicles operating under vibration impact loads, many anti-loosening measures, such as commonly used lock washers and lock nuts, are needed.

Lock washers often have conical embossed washers, hemp surface lock washers, VS washers, CS washers, double-stacked lock washers, two-layer elastic washers, three-layer elastic washers, and so on. Most lock washers apply adjustable friction type lock washers and double stacked lock washers using structural type lock washers, according to different installations and occasions, to choose the appropriate installation for the washers' needs.

5. Lock wild are divided into all-metal series lock nuts or non-metallic insert series lock nuts. All-metal series of locknuts generally use the nut deformation anti-loosening type, generally through the kind of groove cutting or extrusion thread deformation type, such as the French standard double cut groove nuts and DIN980V locknut, or the top of the nut with a metal reed type, to play the role of locking, for example, DIN980M locknuts.

6. Non-metallic insert lock nut, most of the top surface of the nut manufacturing cavity, add nylon ring, nylon ring inner diameter is smaller than the thread diameter, through the nylon ring installation process of extrusion deformation, increase the friction between the threads, to play a locking role, the common DIN982 and DIN985 series lock nut.

7. In some sheet metal parts, when the threaded connection is needed, Cage Nuts can be used.

It is solid. Special tools are used to put the nuts into the pre-processed square or rectangular holes when installing. After drawing out the tools, they are fixed on the sheet. The installation is fast and convenient and is used in many fields, such as electrical cabinets in rail transportation.

Solutions for the rail transportation fastener industrySolutions for the rail transportation fastener industry


Stainless Steel Helical Inserts for Particle-Free Environments: Made of Nitronic 60 stainless steel, these inserts prevent the screw from binding or sticking without any coating or lubricant that could contaminate particle-free environments. Also known as Heli-Coil inserts, they have coils that expand once installed to anchor the insert securely. All have a prong for ease of installation. An installation tool grips the prong and reduces the coil diameter, enabling the insert to fit in tapped holes. Remove the prong to insert the screw. Installation requires a drill bit, a helical insert tap, an installation tool, and a prong break-off tool.

Our professional fastener service team provides safe and complete all-around fastener solutions for rail transit companies, rail transit vehicle manufacturers, and front-end and back-end customers supporting them. Through the strict implementation of the IATF16949 quality system, we guarantee the safety of every screw and safe operation every day!

Please get in touch with me if you want high-quality, Lubricated Stainless Steel Helical Inserts for Dissimilar Metals fasteners or technical support for structural design. Thanks.Email:adelajonly@gmail.com

Website: https://www.juxinfasteners.com




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