※ 引述《poloyeh (消灭万恶莫耳圆~!!)》之铭言： : 各位版友您好： : 想请教各位，何谓『焊接性』？ : 因小弟最近看国考的考古题时，遇到以下一题目： : 《95年公务人员特种考试原住民考试试题》 : 5. 焊接性主要分两方面的因素来考虑，简单说明之。(20分) : 但小弟手边的书籍，没有针对此一性质多做介绍， : 上网搜寻过，似乎也找不到明确的答案。 : （目前书上有查到的，是在Kalpakjian那本机械制造中译本里， : 　有提到『可焊接性』(weldability)，但翻的很怪，有点难以理解。） : 想请教版上各位同仁， : 是否有人可以不吝提供一些意见呢？　谢谢。 ============================================================================= 原文 S.Kalpakjian, Manufacturing Engineering and Technology (4th ed.). Prentic Hell P.828 Weldability The weldability of a metal is usually defined as its capacity to be welded into a specific structure that has certain properties and characteristtics and will satisfactorily meet service requirement. Weldability involves a large number of variables, so generalizations are difficult. As we have seen, the material characteristics (such as the alloying elements, the impurities, the inclusions, the grain structure, and the processing history) of the base metal and the filler metal are important. Because of the effects of melting and solidification and the consequent microstructurl changes, a thoough knowledge of the phase diagram and of the response of the metal or alloy to elevated temperature over a period of time is essential. Also influencing weldability are mechanical and physical properties: strength, toughness, ductility, notch sensitivity, elastic modulus, specific heat, melting point, thermal expansion, surface-tension characteristics of the molten metal, and corrosion resistance. Preparation of surfaces for welding is important; so are the nature and properties of surface oxide films and of adsorbed gases. The particular welding process employed significantly affects the temperatures develop and their distribution in the weld zone. Other factors are shielding gases, fluxes, the moisture content of the coatings on electrodes, welding speed, welding position,cooling rate, and preheating, as well as such post-welding techniques as stress relieving and heat treating. ============================================================================== 译文 金属的可焊接性一般定义是：焊接在特定结构有某些性能、特性与令人满意接合帮助 条件的能力。可焊接性有许多的可变因素，因此要概念化是困难的。就所知的，基材与填 料金属的性质(例如：合金元素、杂质、夹杂物、晶粒结构与处理过程)是很重要的。 因此对於熔化与固化的作用、显为结构改变的结果、相图与升温时金属(或合金)的 反应完善的知识是必要的。也就是机械性质与物理性质对可焊接性是有影响的：强度、韧 性、延展性、缺口敏感性、弹性模数、比热、熔点、热扩散、融化金属之表面张力、与抗 腐蚀性。 表面处理对於焊接是很重要的；也就是表面氧化膜、吸附气体的种类与特性。在特殊 焊接过程，对焊接区域的温度变化与分布有显着的作用。而其他因素有：保护气体、助熔 剂、电极涂层的水分含量、焊接速度、焊接剂、冷却率、预热方式、焊接後技术(如消除 应力与热处理)。 ============================================================================== 中译本翻译的实在太怪了！ 我把原文找出来，重新翻译一次。 不知道对你有没有帮助。 如果我翻译的不好，就请你参考原文一下。 -- 什麽~~~~~~~~~~~~~?? 你说我像记者 我才不会拿一根东西乱塞到别人嘴巴前 也不会问低能的问题 小心ㄧ点!!我可以告你毁谤喔 --

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