|
|
发表于 2021-2-7 09:31
|
显示全部楼层
来自： 中国浙江
太贵了，大兄弟你这样不太好哦
裂纹补焊工艺
Crack Repair Welding Technology
1、 材质：AH36.
Material: AH36.
2、 焊接方法：手工电弧焊。
Welding methods: manual arc welding.
3、 做好挡风、防雨措施。
Take wind, rain protection measures.
4、 裂纹清除：在裂纹端部开止裂孔，用气刨将裂纹刨掉（做成“U”型坡口），做着色（磁粉）探伤，检验无裂纹或其它缺陷。
Crack clear: Drill the stop hole in the end of crack and gouge the crack plane out (make "U" shaped groove) for the coloring (Magnetic) flaw inspection of cracks or other defects
5、 坡口准备：坡口打磨，除掉表面杂质。
1. Groove preparation: Polish the groove, clear away the impurities on the surface
6、 焊条：J507（低氢型，直径4mm严格烘干），焊接电流 150A---180A。焊条进行烘干约2小时，然后放在保温桶内。
Electrode: J507 (low hydrogen type, diameter 4mm strict drying), welding current 150A --- 180A. Dry the electrode for about 2 hours, and then placed inside the cooler of.
7、 焊前预热（即广泛预热并热透）：预热范围在焊道左右各100mm，预热温度约50-100摄氏度。（缓慢预热）
Preheat (wide range of preheat and heat through.): The Warm-up range is 100mm around the weld, preheat temperature is about 50-100 degrees. (Slowly warm-up)
8、 焊接采用多层多道焊。在焊接过程中，要保持层间温度。层间温度不低于预热温度。（每道焊缝厚2-4mm）测量温度在坡口两侧约75mm处。焊工需持3g或以上焊工证上岗
Use the multi-layer & multi-pass welding method. In the welding process, keep the temperature between layers. The Interlayer temperature can’t be lower than the preheating temperature. (Welding thickness is 2-4mm) Measure the temperature on both sides of the groove about 75mm. Welders should have 3g or higher welding certificate posts.
9、 焊接过程中每焊完一道时应检查焊道是否有裂纹。有裂纹应急时清除。
After every process of the welding finished, check the welds for cracks. Crack emergency removal.
10、 焊缝余高为3mm-5mm。
Weld reinforcement is 3mm-5mm.
11、 如焊后成型不好，要进行打磨以便检查。
If the forming is bad after welding ，polish it in order to check，
12、 焊后检验：作着色（磁粉）探伤检验。
Post-weld inspection: Do experiments of coloring (magnetic) detection test。
|
|
提升卡
变色卡
楼主
