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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:在焊縫具有高強的情況下,為改善焊縫的韌性,加入適量稀土鎂合金可以使碳化物由不均勻分布的塊狀變?yōu)閺浬⒌那驙?、可以細化組織晶粒、凈化晶界和改善其中的殘余奧氏體的形狀,使熔敷金屬具有較高的抗開(kāi)裂性,從而提高焊縫的韌性,最終提高堆焊金屬的耐磨性。
- Sometimes all that is left is a skeleton casting with weld metal. 有時(shí)所有這些問(wèn)題都遺留在鑄件焊接金屬框架里。
- all weld metal test specimen 所有焊接金屬測試樣品
- Lowering test and tension test of anchor. 錨投擲試驗和拉力試驗。
- Remove all weld splatter and burrs. 所有焊縫必須焊透.
- If any sample weld is deficient, all welds shall be checked. 若任一取樣焊縫有缺陷,需檢查所有焊縫。
- The work hardening rate of pure tantalum was studied by tension test, optical microscope and TEM. 摘要借助力學(xué)性能實(shí)驗、金相顯微鏡和透射電鏡等手段研究了純鉭的加工硬化速率。
- A beam of light produced by a laser can weld metals. 激光器發(fā)生的光束可以焊接金屬。
- ALL WELDS 1/4" CONT.FILLET U.N.O. 除非另有說(shuō)明,所有焊接(圓角)為1/4"連續圓角
- The deposited ferritic weld metal shall not contact the austenitic or high-chromium steel cladding. 熔敷的鐵素體焊縫金屬不應與奧氏體或高鉻鋼復層接觸。
- Metallographic analysis,tension test,fatigue test and SEM analysis were conducted on the TA15 titanium alloy welded joint. 對TA15鈦合金板材電子束焊接試樣進(jìn)行了金相分析和靜力試驗、疲勞試驗和掃描電鏡(SEM)分析。
- Addition of activating agent has no obvious effect on fracture toughness of weld metal. 添加活性劑對焊縫金屬的斷裂韌性沒(méi)有明顯作用。
- All weld build-up or buttering shall be 100 % examined by MT, followed by RT or UT. 所有補焊或對接焊應先進(jìn)行100%25磁粉檢測,接著(zhù)作100%25射線(xiàn)或超聲檢測。
- The weld metal is fine and close in structure resulting in goodlooking appearace. 焊縫細密美觀(guān);適合全位置焊接;
- The steel plate’ performance in the lamellar tearing resistance aspect can be assessed by reduction in area when doing tension test of through-thickness. 鋼板的抗層狀撕裂性能采用厚度方向拉力試驗的斷面收縮率來(lái)評定。
- Based on the direct tension test, the characteristics of tension stress-strain full curves of steel fiber reinforced self-stressing concrete were investigated. 摘要通過(guò)直接拉伸試驗研究了不同自應力等級下的鋼纖維自應力混凝土的受拉應力-應變全曲線(xiàn)特征。
- Fracture toughness of heat affected zone (HAZ) was between the base metal and weld metal. 焊接熱影響區的斷裂韌性介于母材和焊縫金屬之間。
- D.McKeown, “Hydrogen and its Control in Weld Metal,” Metal Contruction, Vol. 17, No. 10, pp. 655-661, 1985. 張清輝,吳實(shí)平,洪波,焊接材料研制理論與技術(shù),冶金工業(yè)出版社,第56-58頁(yè),民國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. 目前常規的巖體力學(xué)試驗主要有單向壓縮試驗,單向拉伸實(shí)驗,三向壓縮試驗,和剪切試驗等。
- Review and update all welder certificates as required. 按要求審核并更新焊工證書(shū)。