焊接过程未焊透的多种情况与解析
焊接时未焊透是指母材之间未熔化，焊缝⾦属未能进⼊接头根部⽽造成的缺陷，根据焊件的焊接⽅法，可分为根部未焊透和中间未焊透，商场广告
液态焊缝⾦属关于新年的贺卡
没有进⼊根部钝边，在V型或U型坡⼝的单⾯焊是根部未焊透，液态⾦属没有进⼊中间钝边，在双V型或双U型坡⼝双⾯焊是中部未焊透。
Incomplete penetration during welding refers to the defects caud by the ba metal not melting and the weld metal not entering into the root of the joint. According to the welding method of the weldment, it can be divided into incomplete penetration at the root and incomplete penetration in the middle. The liquid weld metal does not enter into the root blunt edge. The one-sided welding of V-shaped or U-shaped groove is incomplete penetration at the root and the liquid metal does not enter into the middle blunt edge, In double V-groove or double U-groove, double side welding is incomplete in the middle.
焊缝未焊透缺陷部位
Incomplete penetration defect of weld
焊缝中未焊透会减⼩其有效⾯积，从⽽严重降低焊件的强度和其他⼒学性能，未焊透也会造成应⼒集中，严重降低焊缝的疲劳强度。焊件在承载应⼒状态下，未焊透会发展成裂纹，焊缝开裂，危害性⼤于⽓孔、夹渣、夹钨等缺陷。
Incomplete penetration in the weld will reduce its effective area, which will riously r春卷做法
educe the好的比喻句
strength and other mechanical properties of the weldment. Incomplete penetration will also cau stress concentration, which w第二英语怎么说
ill riously reduce the fatigue strength of the weld. Under the condition of bearing stress, the incomplete penetration of weldment will develop into crack, which is more harmful than 培训发言稿
porosity, slag inclusion, tungsten inclusion and other defects.
未焊透的原因
Caus of incomplete penetration
1.焊接电流⼩
1.Low welding current
2.坡⼝尺⼨不合适
2.坡⼝尺⼨不合适
3.磁偏吹的影响
3.The influence of magnetic bias blow
4.焊条偏芯度太⼤
4.The deviation of the electrode is too large
5.层间及焊根清理不良
5.Poor cleaning of interlayer and welding root
使⽤较⼤的电流进⾏焊接是预防未焊透的基本⽅法，焊⾓焊缝时，⽤交流代替直流以预防磁偏吹，加强清理，合理设计坡⼝等措施能有效预防未焊透的产⽣。
The u of large current for welding is the basic method to prevent incomplete penetration. When welding fillet weld, using AC instead of DC to prevent magnetic bias blowing, strengthening cleaning, reasonable groove design and other measures can effectively prevent incomplete penetration.
未焊透底⽚影像特点
Image characteristics of incomplete solder film
未焊透的影像是细直⿊线，缺陷两侧轮廓都很整齐，未焊透影像宽度是钝边间隙的宽度，图像轮廓变得不规则，只要能判断出是由于焊缝根部的线状缺陷，都是未焊透。
The image of incomplete penetration is a thin straight black line, and the contour of both sides of the defect is very neat. The width of incomplete penetration image is the width of the gap between blunt edges, and the image contour becomes irregular. As long as the linear defect at the root of the weld can be judged, it is incomplete penetration.
未焊透底⽚上处于焊缝根部的投影位置，⼀般在焊缝中部，呈断续或连续分布，有时可以贯穿整张底⽚。
未焊透底⽚上处于焊缝根部的投影位置，⼀般在焊缝中部，呈断续或连续分布，有时可以贯穿整张底⽚。
The non welded bottom plate is located in the projection position of the weld root, generally in the middle of the weld, and it is intermittent or continuous distribution, sometimes it can run through the whole negative.
射线照射下的未焊透
Incomplete penetration under radiation
未焊透缺陷位于焊缝中⼼，在底⽚上是⼀条笔直的⿊线，焊缝中⼼有许多圆形缺陷，位于焊缝中⼼的⿊直线将圆形缺陷串联起来，贯穿整个焊缝，轮廓清晰，⿊度均匀，是典型的未焊透缺陷。
The incomplete penetration defect is located in the center of the weld, and it is a straight black line on the negative film. Ther中药砂仁的作用
e are many circular defects in the center of the weld. The black line in the center of the weld connects the circular defects in ries and runs through the whole weld. The outline is clear and the blackness is uniform. It is a typical incomplete penetration defect.
未焊透和未熔合影像
Incomplete penetration and incomplete fusion image
未熔合缺陷焊缝中⼼侧影像很直，接近母材的缺陷轮廓是不规则的。
The profile of the weld center is very straight,痴心不变
and the defect contour clo to the ba metal is irregular.
以上为⼤家详细介绍了关于焊接过程未焊透的多种情况与解析相关内容，希望上述内容对⼤家有所帮助。
The above details a variety of cas about incomplete penetration in the welding process and related content a小鬼的要求
nalysis, I hope the above content can help you.
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