久久久久久久精品成人热小说,亚洲 欧美 激情 小说 另类,亚洲精品国产精华液,激烈 痉挛 抽搐 潮喷 MP4

Technical service

Welding repair acceptance criteria

Release Date:2016-08-16
1、 Process requirements
Ordinary weld repair
1.1 If there are defects on the surface of the weld seam, they can be directly removed with an aluminum based grinding wheel. If the overall weld seam can also meet the standard requirements, welding is not required and the welding defects can be directly removed with a grinding wheel;
1.2 Welding defects in general welds can be repaired directly using welding methods, but for welding defects that cannot be repaired directly and still cannot meet the requirements, grinding wheels or washing cutting methods must be used to remove the defects before welding repair can be carried out;
When repairing surface defects of welds, the repair length shall not be less than 50mm. Rigorous spot welding shall be used to repair defects such as porosity and undercutting;
1.4 The appearance of the repaired item shall not have any surface defects; The residual height of the repaired weld seam should meet the requirements of the original weld seam, and the width of the weld seam should not exceed twice that of the original weld seam. Both sides of the weld seam should smoothly transition towards the base metal.
2、 Acceptance criteria:
The repair site should be inspected using the original testing method, and the repaired weld seam should meet the following requirements
2.1 After the repair or rework is completed, a visual inspection should be carried out in a timely manner, and surface slag, splashes, and other dirt should be removed before the inspection. The appearance of the weld seam should meet the specified standards. Welds that fail the appearance inspection shall not undergo non-destructive testing;
2.2 All welds must undergo 100% penetration inspection or 100% ultrasonic inspection;
2.3 Personnel engaged in non-destructive testing must hold qualification certificates issued by the State Administration of Technical Supervision that are suitable for their job responsibilities;
2.4 After passing the inspection, the inspector shall mark the repair area of the weld with the words "repair inspection qualified".
展開
亚洲AV无码一区二区乱子伦 | 男女高潮又爽又黄又无遮挡| 日日碰狠狠添天天爽五月婷| 欧美午夜理伦三级在线观看| 国产chinese男男gay| 欧美XXXX色视频在线观看| 从后面挺进岳的玉梅| 精品乱人伦一区二区三区| 肉yin荡公厕肉便调教车ac| 国产精品 精品国内自产拍| 男人和女人高潮做爰视频| 在线永久免费观看黄网站| 国产精品人人做人人爽人人添 | 久久99国产精一区二区三区| 日本美女图片| 婷婷五月综合色视频| 狠狠色噜噜狠狠亚洲AV| 97高清视频在线观看免费| 亚洲一区二区三区无码久久| 女性私密整形视频| 国产18禁黄网站免费观看| 偷朋友人妻系列h文| 清明节的来历和风俗| 色综合久久久无码中文字幕波多| 免费60分钟床| 麻豆人妻无码性色AV专区 | 无码爽大片日本无码aaa特黄| 99久久久无码国产精品6| 被调教跪着打屁股| 天堂А√在线地址中文在线| 狠狠挺进稚嫩学生小身体| 乱操| 亚洲国产精品无码久久98| 阿娇全套94张未删图| 欧美激情在线播放| 国产精品视频一区二区三区不卡| 99麻豆久久久国产精品免费| 啊快捣烂了啦h男男| 东北女人毛多又黑a片| 天堂网在线最新版WWW中文网| 欧产日产国产精品|