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.
shaker hearth furnace plates casting by Qingdao Hexin Machinery Co., Ltd. The cast sole hearth furnace shaker plate is made from heat resistant stainless steel , we cast single and multi segment hearth plates. HEXIN casts it by resin sand casting method , and machining, with typical materials like ASTM A351 HK40, HU,HT, 1.4852, 1.4849, 2.4879, etc, The sizes for the cast hearth shaker plate shown on the photo is est.2400mm*600*180mm. Many years mature foundry experience for shaker hearth furnace plates, expecially the mature gating system so that the cast defects are avoided like cast porosity, shrinkage,blowholes. The outside quality and inside quality of the hearth plates work very well and last longer service life. The shaker hearth furnace plates made by HEXIN Machinery, features high durability, tensile strength, corrosion resistance and high performance.
cast hanger made of 25Cr-20Ni The picture shows a batch of cast hangers produced in September 2022, made of 25Cr-20Ni, with a specification of 483*316*75mm and a weight of about 32kg. They are made using precision casting technology and mainly used for supporting the radiation tubes in the furnace. After passing various tests, they meet the customer's requirements and have been packed and shipped.