- 1、本文档共24页,可阅读全部内容。
- 2、原创力文档(book118)网站文档一经付费(服务费),不意味着购买了该文档的版权,仅供个人/单位学习、研究之用,不得用于商业用途,未经授权,严禁复制、发行、汇编、翻译或者网络传播等,侵权必究。
- 3、本站所有内容均由合作方或网友上传,本站不对文档的完整性、权威性及其观点立场正确性做任何保证或承诺!文档内容仅供研究参考,付费前请自行鉴别。如您付费,意味着您自己接受本站规则且自行承担风险,本站不退款、不进行额外附加服务;查看《如何避免下载的几个坑》。如果您已付费下载过本站文档,您可以点击 这里二次下载。
- 4、如文档侵犯商业秘密、侵犯著作权、侵犯人身权等,请点击“版权申诉”(推荐),也可以打举报电话:400-050-0827(电话支持时间:9:00-18:30)。
- 5、该文档为VIP文档,如果想要下载,成为VIP会员后,下载免费。
- 6、成为VIP后,下载本文档将扣除1次下载权益。下载后,不支持退款、换文档。如有疑问请联系我们。
- 7、成为VIP后,您将拥有八大权益,权益包括:VIP文档下载权益、阅读免打扰、文档格式转换、高级专利检索、专属身份标志、高级客服、多端互通、版权登记。
- 8、VIP文档为合作方或网友上传,每下载1次, 网站将根据用户上传文档的质量评分、类型等,对文档贡献者给予高额补贴、流量扶持。如果你也想贡献VIP文档。上传文档
可编辑修改
20钢板焊接工艺设计说明书
目录
摘要······························11母材的基本数据与焊接
性····················11.1母材的基本数
据·······················1
1.1.120钢的介绍·······················1
1.1.3碳钢的化学成分······················1
1.1.420钢的化学成分与基本力学性能···············2
1.2.20钢的焊接性·······················2
1.2.1碳当量分析·······················2
1.2.2焊接性分析·······················3
1.2.3焊接时存在的问题·····················32焊接方法的选
择
精品文档
可编辑修改
························43焊接工艺···························5
3.1焊前准备·························5
3.1.1坡口设计·······················5
3.1.2坡口加工方法与清理··················5
3.1.3焊件装配·······················5
3.1.4焊前预热、层间温度以及焊后热处理············6
3.2焊接参数的选择·······················6
3.2.1焊丝直径的选择·····················6
3.2.2焊接电流的选择·····················7
3.2.3电弧电压的选择·····················7
3.2.4焊接速度的选择·····················8
精品文档
可编辑修改
3.2.5焊丝伸出长度的选择···················8
3.2.6电流极性的选择·····················8
3.2.7焊接回路电感值的选择··················8
3.2.8气体流量的选择·····················9
4.焊接设备···························9
5.焊接材料··························101
5.1CO2气体·························10
5.2焊丝··························11
5.2.1焊丝的选择······················11
5.2.2焊丝的质量······················116焊接实施方法及步
骤·····················11
6.1引弧
精品文档
可编辑修改
···························11
6.2焊接··························12
6.3收弧··························127施焊时注意事
项·······················128.CO2焊常见缺陷、产生原因及特征与
预防措施··········129焊后检测····················
文档评论(0)