查询词典 weld

The composition and cooling rate of the weld metal are the main influencing factors on acicular ferrite.

结果表明，焊缝金属化学成分和冷却速度是影响针状铁素体的主要因素，应力对焊缝金属相变的影响很小。

The transformation conditions and natures of acicular ferrite in the weld metal of microalloy steel s were analyzed systematically.

系统地分析了微合金钢焊缝金属中针状铁素体组织的形成条件及特点，对夹杂物粒径、数量进行了统计分析，并阐述了针状铁素体的形核位置。

Low carbon and low alloy steel ; weld metal ; microstructure ; acicular ferrite

低碳低合金钢；焊缝金属；显微组织；针状铁素体

The results indicated that a high volumetric ratio of acicular ferrite in the simulated weld metal can be obtained in case the ratio of manganese and silicon is in a certain range.

结果表明，当Si、Mn比在一定的范围时，焊缝中将出现高比例的针状铁素体；且在大尺寸奥氏体晶粒中的非金属夹杂物上形核，高密度微小的夹杂物(1μm以下)的弥散分布对其形核更为有利。

The product contains compound antioxygen and proper rare earth, which have obvious effect on increasing weather fastness of non-conventional PVC and the strength of fillet weld .

由于本产品含复合抗氧剂和适量稀土元素，对于提高PVC异型耐侯性，增加焊角强度效果十分明显。

Chimney was too tall for a broom to clean from below, he decided to weld athrough the chimney.

把刷子也绑在上面，然后将这个精巧的装置从烟囱上向下扔。

A commonly observed welding defect characteristically occurs at high-speed welding, such as humping weld. Humping is the periodic occurrence of beadlike protuberances.

但焊接速度提高的同时也更容易产生焊接缺陷，如驼峰焊道，即焊缝金属沿焊接方向上分布严重不均的焊缝成形缺陷。

This may be accomplished by using a gasketed 'T' fitting or by a short length of sewer pipe that has a gasketed belled end, and then connecting it to a solvent weld 'T' fitting.

使用一个带衬垫的&T&形装置或短的带衬垫承插端的污水管，然后将它接在一个溶剂粘接的&T&型装置上。

Cavitations in foreign hydraulic turbines appear in clear water condition, so its destructive extent is not far more serious than in Yellow River hi our country. Stronger stiffness and more agility are required for Special-purpose robot for hydraulic turbine repair used in our country. Foreign robot for hydraulic turbine repair could not satisfy our working require, so we develop special-purpose robot system that is used to polish and weld repair cavitate flow path surfaces of hydraulic turbines on all location.

国外水电站的水轮机汽蚀是在清水条件下产生的，其破坏程度远不及我国黄河等水域严重，用于我国水轮机修复工作的专用机器人，要求有更强的刚度和更大的灵活性，国外水轮机修复机器人满足不了我国水轮机修复工作的要求，因此我们开发了用于在机坑内对水轮机空蚀磨损破坏表面进行修复的&水轮机修复专用机器人&。

Adopt the round activity valve seat,seal the surface and weld and set up the hard alloy very much with the department,go into stress heat treatment,make it when run under the reversal operating mode of the hot stress,sealing the surfacedoes not produce full of crackswith the crackly.

采用了圆形的活动阀座，密封面焊以司太立硬质合金，并经去应力热处理，从而使之在热应力交变工况下运行时，密封面不产生龟裂和裂纹。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。