查询词典 parent metal

Because the base microstructure deformed and Mg_2Si grew irreversibly, the natural and artificial aged joint strength respectively reached to 75% and 88% of parent metal.

因为TMAZ和HAZ基体组织变形和Mg_2Si聚集长大不可逆，自然时效接头强度达到母材的75%，人工时效接头强度达到母材的88%。

The influence of key factors, including properties of parent metal, relative densities of truss core, an alternative core topology, heat treatment of sandwich panels and the influence of joining technique of truss core and panels on mechanical properties, are analyzed.

分析了基体金属的性能、芯体的相对密度、芯体的拓扑结构、夹芯板的热处理以及芯体和面板的连接方式因素对夹芯板力学性能的影响。

Company existing production plant 25,000 square metres,the existing 500 employees,including nearly 100 personnel for games ,15 million yuan in fixed assets, the existing plywood production line 6,the production of various types of plywood, Ximugongban,Floor parent metal and Fumo board ,with an annual 100,000 cubic meters of plywood .

公司现有生产厂房25000平方米，现有职工500多人，其中技术人员近百名，固定资产1500万元，现有胶合板生产线6条，生产各种型号的胶合板、细木工板、地板基材及覆膜板，年产胶合板10万立方米。

Thus. for the parent metal of the higher yield strength σ〓, it is benifit for reducing residual stress with selecting strength overmatched joint.

表明屈服强度较高的母材选用适当高强匹配的焊缝对于降低焊接残余应力是有利的。

Taking one kind of specification boiler pipe as the object of study, the cracking parent metal, the cracking fragment and the primary goods were analyzed by vertical and horizontal directions.

以某种规格锅炉炉管为研究对象，在炉管爆裂处的母材、撕裂碎块以及供货原材料的纵横两个方向分别取样进行分析，探讨锅炉管爆裂处的金相变化对炉管失效的影响，并给出锅炉炉管爆裂破坏的金相学原因。

FXD increases the speed and quality of gouging operations dramatically, producing a trough in which the parent metal is exposed, almost totally free of slag or weld-back, and ready for welding.

FXD提高挖凿的速度和质量是显著的，在母材上加工一条明显的槽，几乎完全没有熔渣和韩背，直接焊接。

The tensile strength of laser welded joint of SS400 steel ,which was rolled at higher temperature, is higher than that of parent metal.

终轧温度较高的SS400钢激光焊接接头强度高于母材。

After the ginning, the anticorrosion and a series of technical processing, aluminum sheets increase the area of energy transfer. Simultaneously their strength will be enhanced by 30% compared with parent metal; the anticorrosion coating performance is stable, and safe and environment-friendly.

铝板经过轧花、防腐等一系列技术处理后生产，从而增加了能量传递的面积，同时其强度比母材增强达30％，防腐涂层性能稳定，安全环保。

Where filler materials having tensile properties deviating from the parent metal are used, this fact must be taken into account when dimensioning the weld joints.

从母材部分开始使用具有伸缩性的填角材料之处，计算焊缝时应该考虑到这种情况。

In this paper, with an original designed tool and selected welding parameters, 2024-T4 aluminum alloy sheets were friction stir welded successfully. A series of weld experiments were performed; the microstructure and the mechanical properties of the joints were analyzed. The influences of the welding parameters upon the quality of the joints were studied. The optimized welding parameters window was obtained in which high quality joints can be made and the tensile strength of the optimized joints were more than 80% of that of parent metal. The residual stresses of FSW joints have been investigated by using the Hole-drilling method.

本文自主设计搅拌头，通过选择合适的工艺参数，成功实现了硬铝合金2024-T4板材搅拌摩擦焊接；通过对接头成形和微观组织的研究得到可以实现焊接的工艺参数范围和工艺参数对接头成形的影响规律，并结合接头力学性能研究形成了接头性能与工艺参数之间的关系，并据此建立了优化工艺参数窗口，优化工艺参数下接头的抗拉强度可达到母材的80%以上。

This brought fixed cost, but it also is meant at the same time use a source to won't make you singlehanded assume a problem.

这带来了一定的成本，但它同时也意味着使用开源不会让你独力承担问题。

He gained a small fortune in real estate.

他在房地产上发了一笔小财。