Service HotlineThe purpose of Yueluo is to provide a brake pad rivet with shrinkage that can not only solve the problem of normal feeding during assembly, but also save the processing cost of the original machining chamfering and reduce the quality risk of the rivet in use. its production method.
5. After the closing value material and the geometric parameters of the nut are determined, the change of the closing value has an important influence on the repeated use characteristics of the lock nut. When the closing value becomes larger, the deformation of the threaded piece increases, the strain of the threaded piece increases, the strain cycle hardening phenomenon intensifies, and the pressure FN of the threaded piece increases, which has a tendency to increase the unscrewing torque; on the other hand, the width of the threaded piece decreases. , the total area of the threaded piece decreases, the friction with the bolt decreases, the strain of the threaded piece increases, the low-cycle fatigue performance decreases, and the maximum unscrewing torque tends to decrease. Under the combined action of various factors, the change of the maximum unscrewing torque with the number of repeated uses is difficult to predict, and it can only be observed through experiments.
Generally, the most commonly used material on the market is iron. The iron one is known as carbon steel. It is punched out or turned. After being manufactured, it is in its natural color. In order to prevent rusting, it is necessary to Electroplated. The stainless steel rivet nuts do not need electroplating. In the case of iron, the color of electroplating is generally determined by the customer, and the color of the electroplating depends on what color the customer needs. There are also some requirements for salt spray time. Some electroplating colors have a higher salt spray time, and some electroplating, less rust in a few hours. Another point is to see whether the customer needs to export the product. Generally, the export needs to be environmentally friendly, and some domestic ones also need it, but most of them are not needed.
National standard lock nut GB/T 6182-2000 Type 2 non-metallic insert hexagonal lock nut. GB/T 6183.1-2000 Non-metallic insert hexagonal flange lock nuts. GB/T 6183.2-2000 Non-metallic insert hexagonal flange lock nuts - fine pitch. GB/T 6184-2000 Type 1 All-Metal Hexagon Lock Nuts. GB/T 6185.1-2000 Type 2 all-metal hexagonal lock nuts. GB/T 6185.2-2000 Type 2 all-metal hexagonal lock nuts with fine teeth. GB/T 6186-2000 Type 2 All-Metal Hexagon Lock Nuts Grade 9. GB/T 6187.1-2000 All-metal hexagonal flange lock nuts. GB/T 6187.2-2000 All-metal hexagonal flange lock nut with fine teeth. GB/T 889.1-2000 Type 1 non-metallic insert hexagon lock nuts. GB/T 889.2-2000 Type 1 non-metallic insert hexagonal lock nut fine pitch.
Flat washers are usually thin pieces of various shapes used to reduce friction, prevent leakage, isolate, prevent loosening, or distribute pressure. Such components are found in many materials and structures to perform a variety of similar functions. Restricted by the material and process of threaded fasteners, the bearing surface of fasteners such as bolts is not large, so in order to reduce the compressive stress of the bearing surface and protect the surface of the connected parts, washers are used.
We have many years of experience in the production and sales of screws, nuts, flat washers, etc. The main products are: 60# bolts, steel heat treatment, medium fire GB118 pins, round rivet nuts and other products, we can provide you with suitable fasteners for you solution.
