2021/05/14
The function of U-shaped insulating boards
The U-shaped insulating plate is manufactured by impregnating alkali-free glass-fiber yarn with MPI resin and incorporating special additives, followed by stretching, extrusion, or molding using specialized equipment. Its key feature is that, in conventional aluminum-alloy U-groove covers combined with asbestos gaskets, a small portion of the anode current in the electrolytic cell bypasses the cover and flows directly into the cell body, resulting in current loss. By replacing these components with high-temperature-resistant MPI U-groove covers, the system achieves long-term thermal stability, corrosion resistance, and flame retardancy—all of which meet the requirements of electrolytic production. Testing has confirmed excellent insulation performance, effectively eliminating the issue of bypass conduction through the electrolytic cell cover. The product also exhibits superior high-temperature resistance, high strength, and outstanding weatherability.
2021/04/29
Benefits of a Double-Layer Spring Pad
A double-layer spring washer is placed beneath the nut to prevent it from loosening. Like a single-layer spring washer, it features obliquely cut slots that are staggered; when the nut is tightened, these slots cut through both the fastener and the nut, leaving distinct scratches on the contact surfaces of each. When external vibrations cause the nut to attempt to loosen, the cuts act as a wedge, effectively locking the nut in place.
2021/04/26
Product Introduction to Double-Layer Elastic Pads
Double-layer spring washers can effectively increase the travel range over which bolt preload can be maintained, thereby prolonging the anti-loosening effect. However, their anti-loosening mechanism is no different from that of single-layer spring washers, and many of the drawbacks inherent in single-layer washers also apply to double-layer washers. This necessitates the continued search for new, improved products. Bolted joints are a commonly used fastening method in mechanical equipment; once a bolt loosens, it can compromise the reliability and safety of the machinery—and in severe cases, even lead to structural failure. This inherent risk associated with bolted connections poses significant challenges for designers. While the use of double-layer spring washers can provide effective anti-loosening performance, under conditions of high-frequency, high-amplitude vibration, the effectiveness of double-layer washers remains
2021/04/23
How is the quality of track gauge blocks ensured?
Rail gauge blocks are an indispensable component of railway transportation, with a wide range of applications; therefore, selecting high-quality rail gauge blocks is of paramount importance. So how can one ensure that the rail gauge blocks purchased on the market meet stringent quality standards? In fact, manufacturers impose strict quality requirements: only products that comply with the relevant standards are permitted to enter the market and be sold. Next, we will explain how manufacturers of rail gauge blocks guarantee the quality of their production.
2021/04/20
Advantages of Rail Gauge Blocks
Today, with the rapid advancement of science and technology, transportation is also developing at a remarkable pace, and many types of railway equipment are being continuously upgraded. Among these, the gauge block is a critical component in railway track systems, commonly used to connect the rails to the sleepers. Its primary functions are to securely fasten the rails to the sleepers, maintain the correct track gauge, and prevent lateral movement between the rails and sleepers. So, what are the key advantages of gauge blocks? If you’re not familiar with them, let us introduce each one in turn.
2021/04/19
What is a railway track iron pad?
In fact, the railway track baseplate is simply a component of the track structure, positioned between the rail and the sleeper. Its primary function is to provide vibration damping, while also helping to resist lateral forces. Modern railway tracks place extremely high demands on the performance of these baseplates: in addition to excellent vibration-damping properties, they must also exhibit superior impact resistance.
2021/04/14
Installation of Spring Clip Fasteners
From a structural perspective, the elastic clip fastening system primarily consists of spring clips, helical spikes, gauge blocks, under-rail pads, plain washers, embedded sleeves, and shoulder sleepers in prestressed reinforced concrete. In addition, to adjust the track height, it also includes a height-adjustment shim. So, what is the installation sequence for the elastic clip fasteners? Let’s first briefly outline the installation sequence for the elastic clip fasteners.
2021/04/12
What is the function of the iron base plate?
In the wheel–rail dynamic system, the rail pad plays a relatively significant role, primarily in vibration damping. In fact, the rail pad is a crucial component of the track structure. With the continuous expansion of railway transportation, the number of rail pads in service is steadily increasing, which in turn places extremely high demands on their performance. The rail pad must exhibit excellent vibration-damping characteristics, robust impact resistance, and an exceptionally long service life.
2021/04/09
Installation of hook-headed spikes
When we refer to “road studs,” we are primarily talking about raised highway studs, also known as raised pavement markers. These are essentially traffic safety devices installed in the center of road markings or double yellow lines, leveraging their reflective properties to remind drivers to stay within their lanes. Standard dimensions for these studs are 100 mm × 100 mm × 20 mm, with a maximum height of no more than 25 mm. Road studs are typically installed using epoxy resin.
2021/04/07
Intelligent Hook-Headed Rail Fasteners and Holistic Perception of the Railway Network
In other developed countries, hooked rail spikes have become a critical component of road traffic safety infrastructure; for example, the United Kingdom employs embedded cat’s-eye studs. In China, ordinary hooked rail spikes are predominantly used; however, due to issues related to quality or application, they often fail to deliver long-term performance.
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Contact: General Manager Wu
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Address: No. 1, Xinning West Road, Group 6, Ningtong Residence, Jiang’an Town, Rugao City, Jiangsu Province
Nantong Longyu Rail Equipment Co., Ltd.
Contact: General Manager Wu
Address: No. 1, Xinning West Road, Group 6, Ningtong Residence, Jiang’an Town, Rugao City, Jiangsu Province
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