There are various types of stamping materials for stamping elbows, which are widely used and are forming a large-scale high-tech industry group with broad market prospects and extremely important strategic significance. Stamping materials can be classified into different types according to different classification standards. According to their performance, they can be divided into microelectronic materials, optoelectronic materials, sensor materials, information materials, biomedical materials, ecological environment materials, energy materials, and smart (intelligent) materials. These stamping materials have different performance and demonstrate good value in different fields and industries.
Long term pressure resistance performance, only in terms of design stress, the pressure resistance performance of national standard stamped elbows * *. However, due to various factors, the actual wall thickness of floor heating pipes is usually 2mm. At this wall thickness, all types of pipes can meet the requirements of floor heating, and the pressure resistance advantage of stamped elbow pipes cannot be reflected. Low temperature heat resistance and impact resistance: PE RT and PEX have relatively good low temperature impact resistance. During winter construction, pipes are less susceptible to impact and rupture, increasing the flexibility of construction arrangements. The raw materials for stamping elbows not only have qualified creep rupture curves, but also have moderate pipe prices, making construction relatively convenient and fast compared to other varieties. The connection form belongs to the current reliable standard mutual melting hot melt connection form. The diameter of the pipe fittings is larger than the inner diameter of the same specification pipe. In the system, there is no mechanical connection method for local reduction, so the fluid resistance of the system is relatively small.
When connecting the stamped elbow to the pipe, attention should be paid to slag inclusion during welding. The meaning of slag inclusion * refers to non-metallic slag inclusions. The main reason for this phenomenon is that the groove processing on the pipe or stamped elbow product is incorrect, the angle is too small, which is one reason, and another reason is that the welding current is too small and the viscosity of the slag is too high. Due to the high viscosity, the slag cannot float to the surface, resulting in slag inclusion.