With the development of high technology of industrial production, the welding quality of thick wall weldments is becoming more and more important, which expands the applied range of SAW. The SAW seam tracking is the critical technology to prompt productivty and welding quality.

高技術(shù)工業(yè)生產(chǎn)對(duì)厚板焊接的質(zhì)量要求越來(lái)越高舔穴在线，使埋弧焊具有日益廣闊的應(yīng)用前景欧美高清精品视频在线一区二区，而埋弧焊的焊縫跟蹤技術(shù)則是進(jìn)一步提高焊接生產(chǎn)率和焊縫質(zhì)量的關(guān)鍵黄色永久网站。

In addition, the welding seam strength has been investigated by the method of fracture mechanics, and the software for calculating stress intensity factor at crack tip in weldments has been worked out by boundary element method.

作者還用斷裂力學(xué)的方法91啪在线观看，研究了機(jī)架的焊接強(qiáng)度。并用邊界元法网禁呦视频在线播放www，編制了計(jì)算焊縫裂紋應(yīng)力強(qiáng)度因子的軟件久久黄色视频0。

It is doubtless that the research on damage behavior and ductile fracture of weldments with mechanical heterogeneity is practically significant for the assessment of the integrity of welded structures.

研究焊接接頭這種力學(xué)性能不均勻體的損傷行為及韌性斷裂，對(duì)于焊接結(jié)構(gòu)的安全性評(píng)定人人操久久，具有重要的理論與工程實(shí)際意義97超碰色色。

Ningbo Jingyi Machinery Co., Ltd. is one of the leading manufacturers of various types of sheet metal pressing parts, automobile parts and weldments for many famous domestic and foreign companies.

寧波璟譯機(jī)械制造有限公司是以制造各類鈑金沖壓件、汽車零部件以及焊接件為主的生產(chǎn)型企業(yè)5060一级欧美午夜，集設(shè)計(jì)黄色网站毛篇、開(kāi)發(fā)、制造于一體两女同互玩丝袜脚一区二区。

Parts and Sheet Metal parts share a common icon as do Assemblies and Weldments.

Note 與組合和熔接一樣老师性色欧美A在线播放，零件和板金零件也共用一個(gè)公用圖示。

In this article, the welding problems of high strength steels are analyzed, and the welding materials of high strength steel and the effects of heat-input 亚洲高清不卡A片一区二区三区、H毛片播放网站在线免费、N and O for weldments are introduced.

對(duì)高強(qiáng)鋼焊接問(wèn)題進(jìn)行分析介紹，主要闡述了高強(qiáng)鋼焊接材料的發(fā)展現(xiàn)狀国产又黄又粗又湿视频免费观看，線能量日本永久网站在线观看、氫、氮黄色视频在线观看免费www、氧對(duì)高強(qiáng)鋼焊縫金屬性能的影響在线免费黄色国产剧情网址。

In this article,the laser speckle photography has been used for inspecting the thermal displacement s,which are generated in the weldments made from different metal materials in different temperature intervals.

本文用激光散斑照相法對(duì)不同金屬材料焊接件在不同溫度區(qū)間產(chǎn)生的熱位移進(jìn)行了實(shí)測(cè)，得到焊接部位的熱位移隨溫度的升高而增大男人天堂视频手机在线看，其熱應(yīng)變及熱應(yīng)力亦隨溫度的升高而增大A级在线免费观看，且與理論中的分析相符。

In this article,the laser speckle photography has been used for inspecting the thermal displacements,which are generated in the weldments made from different metal materials in different temperature intervals.

本文用激光散斑照相法對(duì)不同金屬材料焊接件在不同溫度區(qū)間產(chǎn)生的熱位移進(jìn)行了實(shí)測(cè)国产无码黄片，得到焊接部位的熱位移隨溫度的升高而增大真人做受免费视频一级毛片，其熱應(yīng)變及熱應(yīng)力亦隨溫度的升高而增大，且與理論中的分析相符久久香蕉不卡毛片。

Enough care must be paid while measuring the thresholds of weldments due to the wavy character of FCG rates.

由于焊接接頭的裂紋擴(kuò)展速率波動(dòng)較大国模大胆，測(cè)量門檻值時(shí)應(yīng)特別小心。

After cooling for a period of time, the temperature distribution of the weldments shows that a lower temperature region exists at both ends, and a higher temperature region exists in the middle of the tube.

結(jié)果表明先锋影音资源在线，在焊縫附近形成了一個(gè)&T&字形溫度場(chǎng)天美爱情公寓翻拍；焊后冷卻一段時(shí)間后，出現(xiàn)兩端溫度低95视频高潮喷水、中間溫度高的現(xiàn)象一级a爱在线视频免费观看。