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- The investigation make know that right quantityrare earth magnesium alloy can improve weld toughness and amend shape of carbide and remains austensite , fining crystal bound and purifying weld , which improved all weld metal abrasion resistance. 研究表明:在焊缝具有高强的情况下,为改善焊缝的韧性,加入适量稀土镁合金可以使碳化物由不均匀分布的块状变为弥散的球状、可以细化组织晶粒、净化晶界和改善其中的残余奥氏体的形状,使熔敷金属具有较高的抗开裂性,从而提高焊缝的韧性,最终提高堆焊金属的耐磨性。
- Sometimes all that is left is a skeleton casting with weld metal. 有时所有这些问题都遗留在铸件焊接金属框架里。
- all weld metal test specimen 所有焊接金属测试样品
- Lowering test and tension test of anchor. 锚投掷试验和拉力试验。
- Remove all weld splatter and burrs. 所有焊缝必须焊透.
- If any sample weld is deficient, all welds shall be checked. 若任一取样焊缝有缺陷,需检查所有焊缝。
- The work hardening rate of pure tantalum was studied by tension test, optical microscope and TEM. 摘要借助力学性能实验、金相显微镜和透射电镜等手段研究了纯钽的加工硬化速率。
- A beam of light produced by a laser can weld metals. 激光器发生的光束可以焊接金属。
- ALL WELDS 1/4" CONT.FILLET U.N.O. 除非另有说明,所有焊接(圆角)为1/4"连续圆角
- The deposited ferritic weld metal shall not contact the austenitic or high-chromium steel cladding. 熔敷的铁素体焊缝金属不应与奥氏体或高铬钢复层接触。
- Metallographic analysis,tension test,fatigue test and SEM analysis were conducted on the TA15 titanium alloy welded joint. 对TA15钛合金板材电子束焊接试样进行了金相分析和静力试验、疲劳试验和扫描电镜(SEM)分析。
- Addition of activating agent has no obvious effect on fracture toughness of weld metal. 添加活性剂对焊缝金属的断裂韧性没有明显作用。
- All weld build-up or buttering shall be 100 % examined by MT, followed by RT or UT. 所有补焊或对接焊应先进行100%25磁粉检测,接着作100%25射线或超声检测。
- The weld metal is fine and close in structure resulting in goodlooking appearace. 焊缝细密美观;适合全位置焊接;
- The steel plate’ performance in the lamellar tearing resistance aspect can be assessed by reduction in area when doing tension test of through-thickness. 钢板的抗层状撕裂性能采用厚度方向拉力试验的断面收缩率来评定。
- Based on the direct tension test, the characteristics of tension stress-strain full curves of steel fiber reinforced self-stressing concrete were investigated. 摘要通过直接拉伸试验研究了不同自应力等级下的钢纤维自应力混凝土的受拉应力-应变全曲线特征。
- Fracture toughness of heat affected zone (HAZ) was between the base metal and weld metal. 焊接热影响区的断裂韧性介于母材和焊缝金属之间。
- D.McKeown, “Hydrogen and its Control in Weld Metal,” Metal Contruction, Vol. 17, No. 10, pp. 655-661, 1985. 张清辉,吴实平,洪波,焊接材料研制理论与技术,冶金工业出版社,第56-58页,民国91年。
- At present, the conventional rock body mechanical test comprises a unidirectional compression test, a unidirectional tension test, a triaxial compression test and a shear test. 目前常规的岩体力学试验主要有单向压缩试验,单向拉伸实验,三向压缩试验,和剪切试验等。
- Review and update all welder certificates as required. 按要求审核并更新焊工证书。