关于焊接的毕业论文

常州工程学院

毕业设计（论文）

、

题目板厚为6mm的0Cr18Ni9钢板采用焊条电弧焊

的焊接工艺评定（拉伸）

专业焊接技术及自动化

班级学号

姓名

指导教师

2008年6月5日

摘要

钢是我们现代社会中不可缺少的一种材料，它可以看作一个国家工业化水平的标志。钢的产量越高就代表这个国家的工业化水平越高。不锈钢是钢中非常重要的一种，由于不锈钢具有特殊的使用性能和力学性能，在现在的各行各业中已经被越来越多的使用。在不锈钢中奥氏体不锈钢又是其中非常重要的一种，在发达国家每年消耗的不锈钢中有70％的是不锈钢，在我过也达到了65％左右。因此开发和使用好奥氏体不锈钢对我过的工业话来说已经越来越重要了。

0cr18ni9就是奥氏体不锈钢，我做的这个课题就是探讨0cr18ni9在低温贮罐制造中的性能。低温贮罐是用来储存液N液Ar液态的CO2等低温液体的容器，液态介质的特殊性能就决定了制造材料需要特殊性能，而奥氏体不锈钢0cr18ni9就具有这样的性能。低温贮罐在现在的生活、生产中使用已经越来越广泛，因此对0cr18ni9的探讨就显得越来越重要。在这篇论文中我会着重为大家阐述0cr18ni9在低温压力容器制造中的焊接性能，力学性能，使用性能和焊接工艺。

在这篇论文中我会通过一个焊接性试验来探讨0gr18ni9在低温压力容器中的各项性能。我的这个试验就是规格为6×150×300mm的两块0cr18ni9扳水平对接焊接方法就是手工电弧焊。针对这个试验做出完整的焊接工艺评定，并且根据评定要求对式样做相应的无损检验和力学性能的检验，从而来判定0cr18ni9的各项性能。

关键词:

焊接性能力学性能使用性能焊接工艺

Abstract

Steel our modern society is indispensable to a material,it can be seen as a sign of the level of industrialized countries.The higher the output of steel on behalf of this country the higher the level of industrialization.Stainless steel is a very important one,because of the use of stainless steel with special performance and mechanical properties,in all walks of life in the present have been increasingly used.Austenitic stainless steel in the stainless steel is a very important one,in the developed world consumption of stainless steel annually in70%of the stainless steel is,I have also reached about65percent.Thus the development and use of austenitic stainless steel good to me over the words of the industry has become increasingly important.

0cr18ni9is austenitic stainless steel,I do on this subject is0cr18ni9in low-temperature storage tank manufacturer in the performance.Cryogenic storage tank is used to store liquid N Ar of liquid CO2and other low-temperature liquid containers,liquid medium decision on the special properties of the material needs of a special performance,and austenitic stainless steel0cr18ni9on with this performance.Cryogenic storage tank in the present life,has been used in the production of more extensive,therefore0cr18ni9of it is beco Steel our modern society is indispensable to a material,it

can be seen as a sign of the level of industrialized countries.The higher the output of steel on behalf of this country the higher the level of industrialization.Stainless steel is a very important one, because of the use of stainless steel with special performance and mechanical properties,in all walks of life in the present have been increasingly used.Austenitic stainless steel in the stainless steel is a very important one,in the developed world consumption of stainless steel annually in70% of the stainless steel is,I have also reached about65percent.Thus the development and use of austenitic stainless steel good to me over the words of the industry has become increasingly important.

0cr18ni9is austenitic stainless steel,I do on this subject is0cr18ni9in low-temperature storage tank manufacturer in the performance.Cryogenic storage tank is used to store liquid N Ar of liquid CO2and other low-temperature liquid containers,liquid medium decision on the special properties of the material needs of a special performance,and austenitic stainless steel0cr18ni9on with this performance.Cryogenic storage tank in the present life,has been used in the production of more extensive,therefore0cr18ni9of it is becoming increasingly important.In this paper I will focus on as we set out in the cold0cr18ni9pressure vessel manufacture of welding performance,mechanical properties,the use of performance and welding technology.

In this paper I will pass a welding test to explore0gr18ni9in low-temperature pressure vessel in the performance.This is my test specifications for the6×150×300mm20cr18ni9pull the butt welding method is the level of manual arc welding.For the pilot to complete the welding technology assessment and assessed in accordance with the requirements of the design accordingly mechanical properties of non-destructive testing and inspection,to determine0cr18ni9the performance.

ming increasingly important.In this paper I will focus on as we set out in the cold0cr18ni9 pressure vessel manufacture of welding performance,mechanical properties,the use of performance and welding technology.

In this paper I will pass a welding test to explore0gr18ni9in low-temperature pressure vessel in the performance.This is my test specifications for the6×150×300mm20cr18ni9pull the butt welding method is the level of manual arc welding.For the pilot to complete the welding technology assessment and assessed in accordance with the requirements of the design accordingly mechanical properties of non-destructive testing and inspection,to determine0cr18ni9the performance.

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Key word

Welding performance Mechanics performance Welding craft Operational performance