8.A high K ratio method for fatigue precracking in welding position toughness specimen of thick steel plate was developed.
提出了预制厚钢板缝断裂韧度试样疲劳裂纹的“高K比法”。
9.Utilized this method to segmentalize the image of oil derrick arc welding robot welding line gets up the good effect.
将该法运用于石油井架机器人缝图象的识别中起到很好的效果。
10.It has properties of hardening after malleablization,arc welding and impact resistance.It can grind but can not machining demagnitized steel-bonded carbide.
12.Double-frequency cipher can solve the problem of multimachine mutual interference fairly good by handling the remote control and autocorrection of welding current.
采用“双频密码”式解决接流的远程调节及自动修正,较好处理了多机相互干扰问题。
13.Disposing welding section steel cross bridging in the slab-column system is a good means to avoid disposing abaci and elevating shear resistance.
合理设置型钢剪力架避免设置柱帽和板托,同时有效提高板柱节点抗冲切承载力的最受欢迎的有效手段。
14.The product production line uses Japan, Europe, US and so on specialized automated, the semiautomation welding apparatus, each kind of product automatic production.
15.The system uses PLC procedure control, start-up, forward or backward soldering gun, arc starting, workpiece circumgyration, etc full welding process all can complete automatically.
系统采用PLC程序控制,启动、进退枪、引、工件旋转等接全过程均能自动完成。
16.The purpose of prebending process of longitudinal submerged arc welding pipe production line is introduced;character of roller prebending and mould press type prebending is analyzed.
对螺旋埋钢管在生产过程中产生咬边的原因进行了分析,提出了针对这些原因应采取的相应措施。
17.The process of vacuum electron beam welding for rear-axle housing semiaxle of coach was introduced and the major problems in the process of welding was analysed.
介绍了用真空子束接大型客车后桥壳半轴的工艺法,并就接过程中存在的主要问题进行了分析。
18.The welding machine has strong anti-electricity fluctuation ability,it is available to produce in small quantity.At the same time,further research should be held on accurancy accouplement.
得出该机抗网波动能力强、可小批量生产,同时还应从精确匹配上进一步研究的结论。
19.On the basis of the characters of HG - II myriametre rail welder and thetechnological request of rail gas pressure welding in the field, a ra.
20.Air hole, burnthrough, cooapse and welding crackle occurred in the fixed overhead weld for aluminium and aluminium alloy tubes, above all the small-size thin wall tube.