In the process of production, elbows can be effectively divided into long-radius thick-walled elbows and short-radius thick-walled elbows. The long-radius thick-walled elbow refers to the outer diameter of the pipe whose radius of curvature is equal to 1.5 times, that is, R=1.5D. The short-radius thick-walled elbow means that its radius of curvature is equal to the outer diameter of the pipe, that is, R=1.0D.
The accuracy of the bending tire of the elbow is also one of the factors affecting the quality of the elbow. When we manufacture curved tires, in addition to the specification and size requirements to be controlled within a certain tolerance range, we also require users to select corresponding curved tires according to the bending pipe diameter when using. The bendability and surface corrosion of the pipe itself may also affect the quality of the bend. During on-site construction, the operator also needs to understand the material of the pipeline to be processed, the processing performance and make a production judgment on the surface corrosion.
The elbow of the elbow is a kind of pipe fitting used at the bend of the pipe. It accounts for the largest proportion of all pipe fittings used in the pipeline system, about 80%. Usually, different forming processes are selected for elbows of different materials or wall thicknesses. At present, the commonly used seamless elbow forming processes in manufacturers include hot pushing, stamping, extrusion, etc.
About us
Qingdao Hexin Machinery Co., Ltd. is professional for manufacturing, sale and research of high temperature alloy centrifugal cast tube, Heat resistant steel precision castings and sand mold casting.
The main products are: Ethylene cracking furnace furnace tube, reformer furnace tube, all kinds of casting alloy elbow, casting tube sheet, hook, hanger, bracket and other heat resistant casting products. Furnace rollers, radiant tubes, sink roll, stabilizing roll, support arm and sleeve and other heat resistant alloy used for continuous galvanizing line(continuous annealing line), all kinds of heat treatment fixtures used for heating processing equipment, like tray, basket, fan and so on. Widely used for famous brand heat treatment equipment, such as IPSEN, AICHELIN, FONTON, etc.
We committed to the strict quality control and strictly implement ISO9000 series quality management system, Ensure the castings in each process of each station "zero defect" production, Quality has won the acceptance of customers at home and abroad.
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