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.
investment casting trays made of 1.4848 The picture shows a batch of heat treatment fixture s produced in August 2022, with a specification size of 1500x900xHmm, including investment casting trays, middle grates, spacer tubes, columns , etc., made of 1.4848 material and produced using precision casting technology. After inspection in all aspects, they meet the requirements and have been packed and shipped.
centrifugal casting radiant tube straight pipe of U-type radiant tube is made of high temperature resistant centrifugal casting pits pipe, bend adopts precision casting technology, U-type radiant tube used for even back, galvanizing line horizontal annealing furnace and silicon steel heat treatment furnace, under the protective atmosphere of nitrogen and hydrogen, radiant tube by natural gas or coke oven gas combustion heat energy, through the outside of the tube radiation radiation heat transfer, uniform operation of the strip from room temperature quickly and evenly heated to about 900 degrees, the strip annealing. U type radiant tube Our company produces U type radiant tube has the characteristic of heat resistance, oxidation resistance , cost-effective, good product stability. Strict ly control various processes of U type of radiation tube in the production, and e stablish the organization of the ISO9001 quality assurance system. T o have the effectively protecting of impuriti