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1·Provide welding neck flange butt welding required for the purpose of the right pad with neighboring component.

提供焊接法兰的脖子上对接焊目的所需要的正确垫与邻近组成部分。

2·In this paper, by using 2D-FEM, the stress distribution and the stress concentration of the welding neck flange of different cone angle and end height were studied.

通过对特殊法兰进行应力分析，观察法兰的锥颈角度和端部高度的变化对其应力分布的影响，并对应力集中现象进行了分析；

3·Crack in neck of hollow shaft is a very serious malfunction, main cause of the crack include: foundry defect, centralized stress, quality problems of welding and heat treatment.

中空轴轴颈裂纹是水泥磨的严重故障。中空轴轴颈裂纹产生的原因主要有：铸造缺陷，应力集中，焊接和热处理质量问题等。

4·Blend steel welding of flanges is allowed. Long neck flange should conform to related stipulations of GB 150.

法兰允许用钢板拼接焊制，对长颈法兰应符合GB 150的有关规定。

5·The result shows that if only we do strictly according to the welding technics requirements and adopt reasonable welding method, crack in neck of hollow shaft can be repaired well.

结果表明只要严格按照焊接工艺要求，采取合理的焊接方法能使中空轴轴颈裂纹得到很好的修复。

6·The long neck flange should have stress-relief heat treatment after welding.

拼接法兰应进行焊后消除应力热处理。