Question

英语翻译

Welded Joints and Symbols
Common welded joints are illustrated in Fig.4-2-1;each has servel elements.These are the type of joint,the type of weld,and the preparation for the weld.The elements can be put together in various ways.For example, a lap joint may be held by a fillet,plug, or slot weld, and a tee joint by a fillet or groove weld.The nature of the joint depends upon the kind and size of material ,the process, and the strength required.Material less than 0.25mm thick is usually lapped; thicker material is commonly butted.Butt joints are prepared for high-strength steels because they are more easily inspected and invole simpler stress patterns than lap joints.Lap joints are best for most pressure and resistance welding of sheets and for electron beam welding where no filler metal is added.
Proportions of welded joints have been standardized. Preferred sizes, dimensions, and charts for calculating the strengths of and amounts of filler metal required for welded joints are given in reference texts and handbooks.
Position,as defined in Fig.4-2-1,is an important consideration for any welded joint.Gravity aids in putting down the weld metal into a flat position,which is the easiest and fastest to execute.
Precise instructions for any welded joint can be given on a drawing by a system of symbols and conventions.This is a special language and governed by definite rules,like the rules of grammar.A full list of symbols and their meanings is given in reference books.Several illustrations are presented in Fig.4-2-2.
Question
1. What are welding symbols,and what do they do ?
2. How does welding affect grain size and structure of a metal ?
3. How many types of the welded joints are there ?
4. Which position is the best ?
5. What welding methods are lap points used for ?

Answer 1

焊接接头和符号
常见的焊接接头图4所示- 2 - 1，每个人都有servel elements.These是联合式，焊接式，并为weld.The项目的筹备工作可以放在一起的例子在各个ways.For ，搭接接头可以举行一个圆角，插头或焊接插槽，以及一个发球由鱼片或沟联合weld.The性质的联合呼吁的种类和材料，工艺尺寸，强度要求而定。材料厚度小于0.25毫米通常是重叠;较厚的材料通常butted.Butt接头高强度钢的准备，因为它们更容易检查和比搭接接头invole joints.Lap简单重音模式是最最好的焊接压力和阻力床单和电子束焊接填充金属是在没有增加。
焊接接头的比例已经标准化。首选大小，尺寸，以及计算的优势图表和焊接接头的钎料所需金额载于参考文件和手册。
位置，如在图4 - 2 - 1的定义，对于任何一个焊接joint.Gravity艾滋病放下到一个平坦的位置，这是最简单和最快的执行焊缝金属重要的考虑因素。
焊接接头的任何明确指示可以在一个由符号和conventions.This系统给的图样是一种特殊的语言和明确的规则管辖像grammar.A符号和其含义的完整列表的规则，是在给定的参考书籍。若干插图介绍了图4 - 2 - 2。
问题
1。什么是焊接符号，它们可以做什么？
2。如何影响焊接金属晶粒尺寸和结构？
3。焊接接头的种类有多少？
4。哪个位置是最好的？
5。什么焊接方法用于搭接点？

Answer 2

焊接接头和符号
常见分析焊接接头,每一个都有Fig.4-2-1 servel元素这些类型的关节类、焊接,焊接前的准备元素能被放在一起以各种不同的方式例如,一个搭接接头片可能持有、插座,或槽焊接,t的关节焊接或沟槽,波尔多共同的性质的种类和大小取决于材料,过程的力量,并将有需要,. 资料不到0.25mm厚,通常较厚的材料一般都是经过对接屁股关节准备高强度钢的,因为它们更容易检查并积极参加简单的重音比搭接接头搭接接头最适合大部分压力和电阻焊的片状或为电子束焊接没有填充金属是补充。
焊接接头的比例已经被修正。优先大小、尺寸、和图表的优势计算和数量的抗填充金属焊接接头所需给出了参考文献、手册之类的参考书。
Fig.4-2-1的位置,因为定义,是一个重要的考虑任何焊接接头重力艾滋病在平定焊缝金属成一张扁平的地位,是最简单的、最快的执行。
对任何精确的指导了焊接接头可由一个系统的一幅图画和传统的符号这是一个特殊的语言,并由明确的规则的,象语法的规则有一系列的符号及其含义参考书了Fig.4-2-2给出了几个插图。
问题
1。焊接符号,是什么?他们是做什么的?
2。如何影响谷粒的规模和结构焊接金属吗?
3。有多少种不同类型的焊接接头?
4。这个位置的是最好的?
5。一圈什么焊接方法用来干嘛的?点