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钢的冷镦—温挤法是一项新的边缘工艺,它弥补了冷镦或温热挤压两者的局限性,扩大了黑色金属挤压的有效范围,成功地解决了中碳合金结构钢制造六角头凹穴高强度螺栓(以下简称非标螺栓)及类似零件的现实问题。现将冷墩—温挤非标螺栓介绍如下。一、设计及计算根据GB38-67螺栓技术条件规定允许制
Steel cold heading - warm extrusion method is a new edge technology, which makes up for the limitations of both cold heading or warm extrusion, expanding the effective range of black metal extrusion, successfully solved the carbon alloy structure Steel manufacturing hexagonal head high strength bolts (hereinafter referred to as non-standard bolts) and similar parts of the reality. Cold pier now - warm crowded non-standard bolts are described below. First, the design and calculation According to GB38-67 bolts allow the system conditions