railfastening

Anchor Bolt  is a product that can not be bypassed by many projects. He is very important. If the anchor bolts are not buried, it may cause a variety of engineering problems. Anchor Bolt 1. When the diameter of the anchor bolt is less than 30m and the center line is offset within 30m, the bolt can be roasted red with oxyacetylene, and then the bolt is bent with a sledgehammer (or jacked), and W steel welding is required after correction. Make sure to prevent it from recovering when tightening the bolts. If the pitch of the screw inspection is not correct, you will bake it with an oxyacetylene flame and then bend it with a sledgehammer. Weld the steel plate in the middle and add it, and fill it to death in the subsequent grouting; 2. For large bolts (with a diameter of more than 30m), the bolts should be cut off and welded with a steel plate in the middle of the bolt. If the bolt strength is not enough, two pieces of steel plate can be welded on both sides of the bolt. Its ...

"High starting point, high quality, and high goals will be the development strategy of China's fastener industry. Persist in putting product quality first. Quality-centric quality, brand and variety engineering are the efforts of most private fastener companies direction." Railway Fastening System It is unknown how big the  Railway Fastening System  market is, but in the next four years, while several mature fastener markets around the world continue to grow, the biggest breakthrough growth will come from four emerging countries: Brazil, India, China, and Russia. In the context of intensifying price wars, the role of domestic fastener companies in price reduction promotion seems to have become weaker. With the rise in prices of upstream products such as steel and fuel, the cost of fastener production will also increase significantly. Therefore, the pressure of all-round cost reduction is placed in the face of fastener manufacturing enterprises. Today, fastener ...

Sleeper Screw  oiling precautions and operating steps: Sleeper Screw When the sleepers are installed, the use of bolts is inseparable. The bolts are a type of fastener consisting of the head and the screw (a cylinder with external threads). Parts with through holes. When using such parts on sleepers, the main steps are: (1) Before the operation, the operation plan should be formulated according to the actual situation and environmental conditions so that the operation can be performed smoothly. (2) When applying oil, the oil should be applied thoroughly and evenly, and there should be no omissions. (3) It is strictly forbidden for personnel to cover their ears during line operations. (4) Operators should wear labor protection articles and use tools properly during operation to avoid damage. (5) After the operation is completed, a back inspection system shall be strictly implemented, and it shall be possible to leave the operation site only after confirming that it ...

Screws are collectively called fasteners or standard parts. Screws include screws, bolts, and studs. Studs refer to a class of fasteners that have no head and only have external threads on both ends, such as: double-headed studs, welding studs, etc. The difference between screws and bolts and screws is the smallest, and they are often confused. In fact, there is no particularly clear specification boundary, but the smaller ones are often called screws. Such as:  Sleeper Screw , set screws, wood screws, etc. Larger screws are called bolts, such as: hexagon bolts, expansion bolts, carriage bolts, etc. But generally speaking, bolts are used to connect two objects, usually through light holes, and need to be used in conjunction with nuts, and the single can not connect. The tool is generally a wrench. The head is mostly hexagonal, etc., and is generally larger. Screws usually do not need nuts, and directly cooperate with two objects (generally, the connecting parts need to be drille...

As a  Railway Fastening System Manufacturer , share it with everyone. Today, advanced manufacturing represented by aircraft, large power generation equipment, automobiles, high-speed trains, large ships, and large complete sets of equipment has entered an important development direction. As a result, the  Fastening System  will enter an important stage of development. High-strength bolts are used for the connection of important machinery. Repeated disassembly or various installation torque methods require high-strength bolts. Therefore, the surface condition and the accuracy of the thread will directly affect the life and safety of the host. In order to improve the coefficient of friction and avoid rust, bite or jam during use, the technical requirements stipulate that the surface should be nickel-phosphorus plated. The thickness of the coating is guaranteed within the range of 0.02 to 0.03mm, and the coating is uniform, dense, and free of pinholes. Railway Fastening...