A nut is a nut, a part that is screwed together to fix it with a bolt or screw. The materials are divided into carbon steel, stainless steel, non-ferrous metals (such as copper), etc. Nuts are parts that tightly connect mechanical equipment. Through the internal thread, nuts and bolts of the same specification can be […]
When using hexagon head bolts, anti-corrosion treatment is a very important requirement. Depending on the corrosion conditions, different treatment methods can be used. 1) Oxidation Since it hardly has the ability to prevent rust due to blackening, it will quickly rust without oil. The torque preload consistency of the blackened square column template is also […]
Bolt fasteners have become a very important part of the mechanical field, which means that we usually need to pay attention to the maintenance and maintenance of bolts, so that they can play the greatest role in the mechanical field. If they are not standardized in use, they will reduce Its service life. For the […]
What is the correct installation method for stainless steel flanges? 1. the stainless steel flange should have sufficient strength and not deform when tightened. The flange sealing surface should be flat and clean, and the oil stains and rust spots should be carefully cleaned up when installing the stainless steel flange. 2.the gasket should have […]
Carbon steel weldability and its test evaluation 1. Welding: A process in which two objects are combined between atoms to form an inseparable whole by heating or pressing, with or without filling materials. 2. Weldability: refers to the ability of homogeneous or dissimilar materials to be welded to form a complete joint and meet the […]
What are the technical requirements for elbows in engineering projects? 1. Since most of the pipe fittings are used for welding, in order to improve the welding quality, the ends are beveled, with a certain angle and a certain side. This requirement is also strict, how thick the side, how much angle and deviation The […]
Butt welding flange is a kind of pipe fittings, which refers to the flange with neck and the transition of round pipe and butt welding with the pipe. Butt welding flanges are not easy to deform, have good sealing, and are widely used. They have corresponding rigidity and elasticity requirements and reasonable butt welding thinning […]
Wear-resistant ceramic pipes are widely used in the industrial field, especially in high-wear working environments, such as power plants, cement plants, mines and other enterprises. Wear-resistant ceramic pipes reflect the incomparable advantages of other products. Wear-resistant ceramic pipe connection method 1. Fixed flange connection Fixed flange connection means that the flange is directly welded to […]
What is a bimetal composite wear-resistant pipe? The outer wall of the bimetal composite wear-resistant pipe is made of ordinary seamless steel pipe, which is compounded by a high-chromium cast steel lining through a centrifugal forming process. The outer wall of the elbow is made of shrimp elbows, and the inner layer is made of […]
The outer wall of the bimetal wear-resistant composite pipe is made of ordinary seamless steel pipe, which is compounded by a high chromium cast steel lining through a centrifugal forming process. The outer wall of the elbow is made of shrimp elbows, and the inner layer is made of high-chromium cast steel, which not only […]
