查询词典 weld

It was not symmetry about weld centerline the area which the material had deformed. The plasticized materials looked like a slantwise vase in the center of the weld.

塑性变形的区域关于焊缝中心不对称，塑性材料在焊缝中心形成类似于倾斜&花瓶&状的形貌。

Manufacturing Ability: we have departments on casting, smithing, plug weld, mechanical workout, assembling, heat treatment and erection works. Besides we are full-equipped with technical measurement and physical and chemical inspection equipment to gurantee the quality of our products. We are capable to provide all sorts of equipments and the spares for steel industry, mine, building material and chemical engineering. The annual capacity for plug weld is more than 1,500 ton, for chemical workout is more than 3,000 ton and for casting is more than 10,000 ton.

生产能力：设有铸造、锻造、铆焊、机械加工与装配、热处理、工程安装等部门，拥有铸造、锻造、热处理、机械加工、铆焊等专业生产设备近百台，并配有完善的技术测量与理化检测设备，可为钢铁、矿山、建材、化工等行业提供各种成套设备与备品备件，年铆焊件制作能力1500余吨、机械加工能力3000余吨、铸造能力10000余吨。

Through the microstructure analysis, it is found that there are ferrite, spiculate bainite in base material, weld metal area and heat-affected zone, and there is much dispersed Fe3C on ferrite and bainite, which indicates that weld joints of steel B610CF have better strength and toughness.

金相分析表明，焊接接头的母材区、焊缝区和热影响区组织均为铁素体和下贝氏体，在铁素体和贝氏体上还弥散分布着渗碳体，说明焊接接头的强度和韧性都较好。

The results show that a sound bonded interface is obtained without sheet inclusion, pore and unbinding. The microstructure consists of bulk α-Mg phase and needle compound in the weld metal, element Al diffuses along the grain boundary of the substrate into the welding line. A little Y diffuses into the base metal. A little Mn and Cu segregate and element Ni distributes homogeneously and no segregation appears in weld area.

结果表明：界面接合良好，未观察到片状夹杂物、气孔及未焊合等缺陷；焊缝区由块状α-Mg相和针状化合物组成，基体中的Al元素通过晶界扩散偏聚到焊缝中，微量Y元素扩散到基体中，有少量的Mn和Cu元素发生偏聚，Ni元素分布均匀，没有发生偏聚现象。

Results of the computation under the same welding temperature field show that the longitudinal residual stresses in the weld are as high as the yield strength of the plate in the strength and TEC evenmatched joints, lower than the yield strength of the plate in the strength evenmatched and TEC undermatched joints. It also has something to do with the strain hardening exponent of the weld metal in the strength evenmatched and TEC overmatched joints.

计算结果表明：等强等胀匹配的焊缝区纵向残余拉应力水平高达母材的屈服强度，等强低胀匹配的焊缝区纵向残余应力水平低于母材屈服强度，等强高胀匹配的焊缝区纵向残余应力水平还与焊缝应变硬化指数有关。

When the weld metal deforms without substantial interaction with surrounding base material, an expression of a modification factor is presented, which can be used to calculate and analyze the effect of weld mechanical heterogeneity on the crack growth driving force.

在不考虑焊缝应变与母材应变相互干涉影响的前提下，本文给出了一个可以分析焊接接头各种力学性能不均匀对裂纹扩展驱动力影响的修正系数计算表达式。

Others, parts on Kelly bar shouldn't be changed or demounted at random; welding shouldn't be done on the part which did not weld formerly; maintenance should be guided by manufacturer, it is prohibited to weld the key side in principle, welding should be done on three keys at one time, indexing is ensured by grinding after welding, internal keys should be grinded of its full-length to ensure indexing.

其它，钻杆上的制件不要随意拆换或卸掉；不要在原来不焊接的部位自作主张焊接；维修钻杆要有钻杆生产厂家指导，原则上不允许对键侧进行焊补，焊补要三键同时进行，焊补后修磨保证分度，内键要通长焊补修磨，保证分度。

Seam welded C276 alloy heat exchanger tubing to UNS N10276 is allowed providing the tube weld is not peened or bead worked, but the whole tube in both weld and base metal is cold drawn, bright annealed and passivated and is to ASTM B626 Class III specification.

如果管子焊缝不是peened or bead worked，则使用焊缝缝焊接式C276合金换热管(UNS N10276)是允许的，但是焊缝和基金属上的整个管子是冷拔的、光亮退火和钝化的，并应符合规范ASTM B626 Class III上的规定。

2 What is the maximum allowable stress for CJP groove weld meta l splicing two ASTM A-36 steel non-redundant members of equal thickness and width, subject to loading of 2×106 life time stress reversals, assuming the weld reinforcement remains and all such joints are to be radiographed ?

对於连续两个同样厚度和宽度的 ASTM A-36钢的非超静定焊接件，假定保持焊缝加强高并所有如此接头都要进行射线探伤，在承受2×106连续应力交变载荷下完全熔透坡口焊缝金属的最大允许应力是多少？

Radiographing a weld seam of catalogue A with 48mm of plate thickness tow slag line of 14mm and 13mm in length with interval 70mm are revealed on the radiograph, weather the weld seam is acceptable or not (the length of the film is 300mm)?

48mm板厚的A类焊缝射线探伤，底片上发现了二个14mm和13mm长的线状夹渣，两者间距为70mm，该焊缝是否合格(胶片长为300mm)？

The absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。