纤维素型焊条，是一种药皮中含有机物较多的酸性焊条。
提高高纤维素型焊条低温韧性是未能解决好的一大难题。
It is a difficult problem to improve the low temperature toughness of high cellulosic electrodes.
为保证接头的焊接质量，推荐了纤维素型下向焊条管子全位置焊的焊接规范并详细介绍了操作要领。
To ensure the welding quality of pipe joints this article recommends the welding specifications on pipe's all position with the fiber down-welding electrode and introduces in detail the operation way.
采用七种高纤维素型立向下电焊条，通过斜y坡口裂纹实验，对高强管线钢的冷裂敏感性进行实验研究。
The cold cracking sensibility of high tensile pipeline-steel was studied by Ygroove cracking test using seven kinds of high cellulose electrode of vertical down position welding.
应用推荐