railfastening

As a  Railway Fastening System Supplier , share with you. Stainless steel fasteners also refer to stainless steel screws, which are national standard screws. The reasons for frequent lockups are as follows: 1. If the product is not selected correctly, you should confirm whether the mechanical properties of the product can meet the use requirements before use. In addition, the length of the screw is properly selected, and one or two pitches of the nut are exposed after tightening. 2. Rough teeth or foreign objects. If there are solder joints and other metal shavings are caught between the teeth, it will often cause locking. 3. Too much force or too fast locking speed. Use a torque wrench or socket wrench as much as possible. Avoid using an adjustable wrench or an electric wrench. Because the electric wrench often causes the locking speed to be too fast, the temperature rises rapidly and locks up. 4. The wrong angle of the force application direction. The nut must be screwed...

Experts believe that the mechanical properties of  Railway Fastening System  are related to the materials used to produce hardware fasteners, the parameter setting and forming methods of cold forming, and the heat treatment process control and parameter selection. Railway Fastening System The surface treatment has little effect on the mechanical properties of the hardware fasteners, but only solves the appearance or corrosion resistance of the hardware fasteners to extend the service life. However, the editor reminds that the actual situation is not the case. This understanding is a deviation from the standard understanding. If the surface treatment method is not suitable or the operation does not meet the process parameter requirements, it will directly affect the mechanical properties of the hardware fasteners. Surface anti-corrosion performance or appearance. Next,  Railway Fastening System Manufacturer  will talk about the effect of surface treatment of hi...

There are many types of railway accessories, which are roughly divided into three categories of accessories, each of which has its special existence. Now we will tell you about it by the professional railway accessories manufacturer- Track Bolt China Exporter . The track rail accessories include rails, sleepers, connecting parts, fish plates, backing plates and bushings. As an integrated engineering structure, the  Railway Fastening System  plays a guiding role in train operation on the roadbed and directly bears the huge pressure of rolling stock and its load. Under the power of train operation, its various components must have sufficient strength and stability to ensure that the train operates safely, smoothly, and uninterruptedly at the maximum speed specified. Hex Bolt The first is the railway rail connection accessories, one is the connection accessories of the same side rail, and the other is the connection accessories between the parallel rails. Commonly used con...

As a  Track Bolt China Exporter , share with you. Spiral spikes are a kind of railway spikes and one of many railway accessories, which play a role in fastening the entire railway track. The importance of spiral spikes is undeniable. Therefore, during daily inspection and maintenance, special attention should be paid to spiral spikes. What are the regulations for anchoring spiral spikes? On the one hand, it is necessary to ensure that the quality of the spiral spike is qualified, on the other hand, it is necessary to correctly install the anchor spiral spike. So, what standards should be met when anchoring spiral spikes? The following will summarize and introduce this problem. Bridge Bolt 1. Spiral spikes are anchored with sulfur cement mortar. The sulfur cement mortar formula and preparation process shall comply with the relevant provisions of the railway track construction and acceptance specifications. 2. Before anchoring, the debris in the reserved holes of the sle...

As a fastener,  Anchor Bolt 's main function is to fix the machine on the ground. Due to its strong stability, anchor bolts are often used in bridges, mines, railways, highways, power companies, cement plants, automobiles, motorcycles, tower cranes, boiler steel structures, large-span steel structures, and large buildings. Although the function of anchor bolt is very strong, it can also be applied in different fields. But in the process of application, various failures will occur due to various reasons. So, what should I do after the local bolt is broken? Anchor Bolt 1. Cut the concrete around the anchor bolt into a groove with a depth of 150-200mm at the root. 2. Processing the anchor bolts, the prepared anchor bolts of the same diameter are welded into a 45 degree chamfer, the center is 5mm, and the anchor bolts in the concrete are smoothed with an angle grinder to remove cracks. 3. Align the anchor bolts first, use the welding rod to manually weld the welding port, we...

For most users of the  Railway Fastening System , you may know the type of fastener dynamic torque standards during use, but you do not know some factors that affect the dynamic torque of the fastener, which will seriously affect the fastener during use Performance. Four factors that analyze the dynamic torque of fasteners:  Railway Fastening System Manufacturer : 1.Shape of fastener head With the increase of the diameter of the bearing surface of the head, the friction surface keeps increasing, and the torque required to achieve the same axial preload force also increases. Therefore, under the same conditions, the larger the torque required for the fastener with a large diameter of the friction surface of the head. 2.Friction coefficient of fastener surface The friction coefficients of fasteners with different surface treatment methods vary widely. However, the surface friction coefficient can be adjusted to the required range by adding a modifier. In the case of...