我猜想鱼钩是这样制作的:用铁丝弯出形状,磨尖后剁出倒刺,然后在截断的同时压出尾柄,再渗碳。鱼钩的钢性很高,是硬度、强度和弹性的结合,不可能直接用钢丝完成。鱼钩经过渗碳处理后,硬度提高了,但碳的含量高了,会变脆,鱼钩容易折断。现在市场有许多“特选钩”,如果鱼钩的热处理 I guess the hook was made by bending the shape with a wire, chopping the barb after sharpening it, and then pressing it out of the tailstock while cutting it off to carburize. Hooks of high rigidity, is the combination of hardness, strength and flexibility, can not be completed directly with steel wire. Hook after carburizing treatment, the hardness increased, but the carbon content is high, will become brittle, hooks easily broken. There are many “special picks” in the market now, if the hooks are heat-treated