Carbon steel elbow is a kind of elbow that can improve the temperature
?Carbon steel elbow is a kind of elbow that can improve the temperature of heat preservation, which is often used in people's daily life. Carbon steel elbow is widely used in construction, decoration and pipeline laying, which can ensure the normal and smooth of pipeline. The composition of carbon steel elbow is relatively simple, and its composition is relatively simple, which can be easily understood and imagined. Carbon steel elbow is a kind of elbow. A rigid polyurethane foam steel carbon layer filled with the elbow of the conveying medium, the high density polyethylene sheath pipe, and the elbow and the outer sleeve pipe is closely combined.
?It is a high density polyethylene external protective tube prefabricated directly embedded carbon steel elbow for polyurethane foam. Only the elbow of the rust removing and anticorrosion anticorrosion can be sleeved in the polyethylene sleeve, and the polyurethane foam is injected into the middle, so that the elbow and polyethylene bushing can be filled fully. The gap between the elbows eventually makes the elbow, casing and carbon steel layer form a solid whole to achieve the effect of anti-corrosion carbon steel, carbon steel elbow is formed.
?Most of the carbon steel elbows are processed by pressure, resulting in plastic deformation of the processed carbon steel elbows. According to the different processing temperature of elbow, it can be divided into cold processing and hot processing. The main processing methods of carbon steel elbow are: semi-continuous rolling mill: including 1-stand Steckel mill and 5-stand finishing mill.
?In semi-continuous rolling mill, the hot rolling of tube during finishing pass is essentially constant from one end to the other end. The time between last pass of finishing mill is usually less than 3 s. The process characteristic of tube is that there is central segregation in thin continuous casting slab, eliminating central segregation of thin continuous casting slab. Analysis is the key technology to further improve the quality of stainless steel stamping elbows.