railfastening

Fastener threads play a vital role in the fastening of parts.For the  Railway Fastening System Manufacturer , many people may have various parts of fasteners, such as: screws, nuts, bolts and rivets. What do you know, and how much do you know about the thread? In the use of fastener threads, the choice of fine and coarse teeth is the most difficult to make a decision.  China Screw Spike Supplier 's understanding of fastener threads, come Share the introduction about threads and the selection of related fine and coarse threads. Screw Spike Definition of fastener threads Thread is a shape with a uniform spiral line on the outer or inner surface of a solid. Fastener thread action 1. Fastening and connection: suitable for most screw products at this stage. 2. Transmission effect: such as a micrometer used for QC inspection. 3. Sealing effect: such as sealing the connection of the pipeline. Development history of fastener threads Machine thread: During assembly...

Bolts and nuts are also  Railway Fastening  common in our daily life, but rust is also a common problem phenomenon of bolts and nuts, and being able to easily unscrew rusted bolts and nuts is the method we most want to know. Here,  Rail Spike Manufacturer  will share with you about the rust of bolts and nuts, no matter how serious the rust, teach you a good way to easily unscrew it. Square Bolt Method one: beat to help loosen the rusted bolts and nuts In the process of using bolts and nuts, if the rust is not very serious, and it is a larger bolt and nut, we can use a tap to loosen the bolt and nut. The rusted bolt seems to be very strong, but only some rust is used to fix it. Sometimes this method works. One hand holds the wrench to fix the bolt, and the other hand holds the hammer to hit the tail of the wrench. You can strike with a small amount of force first. If you still can't twist it, increase the strength appropriately. Be careful if you don't h...

We generally use the most popular methods for plating, hot-dip galvanizing, and mechanical plating on the appearance of the  Railway Fastening . The process of forming a covering layer on the appearance of the fastener, after the appearance of the fastener, can show more Beautiful appearance, the corrosion resistance of the fastener itself will also be improved. The more important intention is to make the fastener itself have anti-corrosion ability, in order to add the reliability and adaptability of the fastener application, so the quality of the appearance of the fastener is judged, and the most important thing is to check the fastener's anti-corrosion ability. Whether it is useful to add, and whether the added range meets the expected requirements. As a  Railway Fastening System Manufacturer , share with you. 1, Hot-dip galvanizing of fasteners Hot-dip galvanizing of fasteners is to immerse fasteners made of carbon steel in a bath of molten zinc with a heat of about 51...

Fasteners are a common type of fastener connection parts in our lives, ranging from screws on watches to large mechanical parts or aircraft bolts and nuts. The use of  Railway Fastener  is very extensive, but in the process of using it, will you encounter some misunderstandings, such as we no longer have thin bolts, can we use coarse bolts instead? In response to these problems, According to the details of the  Railway Fastening System Manufacturer , I can tell you that it is not possible. By summary, when using fasteners, the common misunderstandings are mainly the following, I hope to help everyone. Railway Fastener 1.Replace fine teeth with coarse teeth There are many important connecting parts on the machine, such as drive shafts, etc. Most of the bolts are fine-threaded. If there are missing parts during maintenance, some maintenance personnel will use coarse tooth bolts instead, which should be avoided. Because the fine bolts have a large internal diamete...

As a  Rail Spike Manufacturer , I will introduce the bolts. Bolts: mechanical parts, cylindrical threaded fasteners with nuts. A type of fastener consisting of a head and a screw needs to cooperate with a nut to fasten and connect two parts with through holes. There are many types of bolts. Hex Bolt Divided according to the connection force: there are ordinary bolts and bolts with hinge holes. According to the shape of the head:  Hex Bolt , round head, square head, countersunk head and so on. According to the thread length, it is divided into two types: full thread and non-full thread. There are two types of coarse teeth and fine teeth according to the thread profile. The coarse profile is not displayed in the bolt symbol. Bolts are divided into eight grades 3.6, 4.8, 5.6, 5.8, 8.8, 9.8, 10.9, and 12.9 according to their performance grades. Among them, bolts of grade 8.8 and above are made of low-carbon alloy steel or medium-carbon steel and are heat-treated...