管件

凸缘的制造工艺中主要分为锻造，铸造，切削和轧。　　The casting and forging flanges have advantages that the blanks of them have accurate shape, size and low costs and only need simple process. But forging flanges have manufacturing defects such as blowholes, cracks, etc and have not very smooth internal organization streamline. The obvious advantages of forging flanges are that they can be forged in various shapes and they have low costs. 　　Forging flanges generally have lower carbon content than the casting flanges and are not easy to rust. They have smooth streamline, uniform internal […]

钢管弯头是在管道的管道系统中的重要部件和用于改变流体方向。它的范围在不同类型的按体材料有不锈钢弯头，碳钢弯头，和合金钢;按照流体的方向有45度，90度弯头和180度;按照肘长度和半径有短半径弯头（SR肘）和长半径弯头（弯头LR）;按照连接类型有对接焊缝弯头，插座焊接弯头和螺纹钢管道弯头。90度钢管弯头90度钢管弯头是[...]