8 Inch THK 28mm ASTM A234 WP22 5D Steel Pipe Bend For Pipe Connection

Bend pipe is a complete set of bending equipment for bending, divided into cold simmer and hot push two processes. No matter which kind of machine equipment and pipeline, most of them are used to bend pipe, mainly for oil, gas, infusion, engineering bridge construction and so on.
During pure bending, the outer arm wall of the neutral layer is thinned by tensile stress &1 under the action of M external force distance, and the inner compression stress. The joint force N1 and N2 make the cross section of the pipe change. On the basis of this factor, the main reasons for the decrease of bend pipe quality are RX and SX. Therefore, in the GBJ235-82, the RX value and the lateral thinning amount under various pressure grades are clearly stipulated. The purpose is to control the value of RX and SX to ensure quality.
As has been said in the front of the 2., the outside of the material is pulled when the bend is bent, and the position of the inner compression neutral shaft is different from the bend method. The neutral axis is 2/3 from the outer wall. Therefore, thin-walled pipe bending, the use of rotary bending method is beneficial.

• Effect of lubrication on product quality during molding:

In the traditional pipe bending production process, in order to obtain better surface quality of pipe bending, many methods will be adopted, including: using more advanced and high-grade pipe bending machines, using higher strength molds, or using lubricating products and so on. Using high grade pipe bender and high strength mould, enterprises often need to invest very large funds to complete, only the use of pipe bender lubrication products is relatively low and fast to meet the requirements of enterprise product quality. However, in the traditional production process, the lubricating products of oil-based bends can meet the requirements of the quality of bends in the production of bends, but the non-cleaning property and environmental pollution of oil-based bends are very prominent. In this way, enterprises must use more means to eliminate the impact of oil-based elbow lubrication on the quality of final products. However, the arrival of IRMCO bend pipe grease not only meets the requirements of enterprises for the quality of bend pipe products, but also avoids and reduces the investment increased by enterprises because of the use of oil-based bend pipe lubricating products, and completely optimizes the production process of enterprises.

In the application of traditional oil-based lubricating products, the production efficiency of enterprises is greatly restricted, because the fluidity and extremely difficult cleaning of oil-based lubricating products cause pollution to the production environment and the working conditions of workers. It often takes a lot of money and manpower to clear these pollution. It can reduce or even avoid the above pollution cleaning manpower and material resources, its wash-free and direct welding characteristics, and greatly improve the production efficiency and product quality of the enterprise. However, the amount of IRMCO water base pipe grease can be reduced by 50% to 80% than the traditional lubricating oil, which can save more expenses for enterprises.

Material of ASME B16.9 Bend