钢板焊接坡口标准是多少

钢板焊接坡口标准是多少
2024-11-02 16:15:48
推荐回答(3个)
回答1:

以下为钢板焊接坡口标准:

工序内容:用半自动或手工切割后清理挂渣、氧化铁,然后用磨光机或者砂轮机将切割处磨平,顺便将切割处两侧打磨至露出金属光泽,具备装配和焊接条件。

扩展资料:

《中华人民共和国行业标准:钢结构焊接规范(GB 50661-2011)》提出了钢结构焊接连接构造设计、制作、材料、工艺、质量控制、人员等技术要求。同时,为贯彻执行国家技术经济政策,反映钢结构建设领域可持续发展理念,本规范在控制钢结构焊接质量的同时,加强了节能、节材与环境保护等要求。 

《中华人民共和国行业标准:钢结构焊接规范(GB 50661-2011)》的主要内容有:总则,术语和符号,基本规定,材料,焊接连接构造设计,焊接工艺评定,焊接工艺,焊接检验,焊接补强与加固等。

参考资料:钢结构焊接规范—百度百科

回答2:

钢板焊接时,使用位置不同适用的坡口标准及形式不同,坡口标准如下:

GB4675.1     焊接性试验   斜Y型坡口焊接裂纹试验方法
GB4675.2    焊接性试验   搭接接头( CTS )焊接裂纹试验方法

GB4675.3    焊接性试验   T型接头焊接裂纹试验方法
GB4675.4     焊接性试验   压板对接(FISCO ) 焊接裂纹试验方法  
GB4675.5   焊接热影响区最高硬度试验方法
GB9447      焊接接头疲劳裂纹扩展速率试验方法
GB2358      裂纹张开位移(COD)试验方法
GB3323        钢熔化对接接头射线照相和质量分级
GB2970        中厚钢板超声波探伤方法
JB1152        锅炉和钢制压力容器对接焊缝超声波探伤 


常用钢板焊接坡口形式,如下图所示:

回答3:

判别方法:
1、看丝印:有丝印的正对丝印,一般是左正右负;

2、看两端外形:有凸起的那端为正,平底为负;

3、万用表测量:红黑表笔,显示正数的情况下红线是+,黑色是-,显示负数的情况下红色表笔对应的是-电极,黑色对应的是+电极;

4、看外形,改型号电池一般为原形,看两端绝缘保证,一端有凹陷圆环,一端没有,有的是正,没有为负;

5、有些厂家不按照电池标准、标识生产,那就实际测量和咨询厂家,索取规格书;

拓展资料:

18650是锂离子电池的鼻祖--日本SONY公司当年为了节省成本而定下的一种标准性的锂离子电池型号,其中18表示直径为18mm,65表示长度为65mm,0表示为圆柱形电池。

常见的18650电池分为锂离子电池、磷酸铁锂电池。锂离子电池电压为标称电压为3.7v,充电截止电压为4.2v,磷酸铁锂电池标称电压为3.2V。

充电截止电压为3.6v,容量通常为1200mAh-3350mAh,常见容量是2200mAh-2600mAh。

参考资料:百度百科_18650锂电池

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