拉伸元素 的英文怎麼說
中文拼音 [lāshēnyuánsù]
拉伸元素
英文
extrude element-
( 1 ) systematic triaxial compression tests are made for the sand reinforced by various national geosynthetics. comprehensive investigations into the interaction characteristics are also made between sand / lime fly ash and various national geosynthetics by direct shear tests and pull out tests, which can help choosing geosynthetic type and understanding the geosynthetic reinforcement mechanism ; ( 2 ) this paper is also firstly systematically presents the results of a comprehensive investigation into the interaction characteristics between lime fly ash and various national geosynthetics ; ( 3 ) by non - linear fem, the influence of the modulus of geosynthetics, the thickness of the soft ground and the width of the foundation on the effectiveness of geosynthetic reinforcement are also studied ; ( 4 ) the main conclusions are as followed : ( geotextiles are likely to be suited for projects allowing high displacement, polyester warp knitting geogrids and oriented geogrids for projects allowing medium displacement, glass fiber geogrids for projects allowing low displacement and geonets for secondary projects. ( the confining effect of fill material to act on different kinds of geosynthetics varies largely, which must be considered
（ 1 ）本文利用三軸壓縮試驗，比較各種國產土工合成材料對砂土的加筋效果；利用直剪試驗和拉拔試驗，比較各種國產土工合成材料與砂土或石灰粉煤灰的界面摩擦特性，深入研究土工合成材料的加筋機理，首次明確提出加筋土工合成材料的選型原則； （ 2 ）本文首次系統地研究了石灰粉煤灰與各種國產土工合成材料的界面摩擦特性； （ 3 ）本文採用有限元法，系統研究了加筋模量、軟土地基厚度、基礎寬度等因素對土工合成材料加固軟土地基效果的影響； （ 4 ）本文主要結論如下： （無紡土工織物適合用於允許大變形的加筋土工程；滌綸纖維經編土工格柵和塑料拉伸土工格柵適合用於對變形有較嚴格要求的加筋土工程；玻璃纖維經編土工格柵適合用於對變形有嚴格要求的加筋工程；土工網適合用於低等級的加筋土工程。Electrical appliance industry : the production of electrochemical capacitor ( erosion of aluminum film ) ; transportation of electrolyte in the production of dry cells and storage cells ; etching of circuit boards ; transportation of high purity chemical liquids in the production of semiconductors
金屬工業：氧化鋁膜處理設備；線材拉伸、鋼鐵軋制中除油及酸洗；車輛噴漆前除油及酸洗處理；氧化鈦、稀土元素的生產等。Based on results of a large number of runs ， the following conclusions can be made at this stage of research. the fensile strength of the new steel added micro alloyed process is 1. 1 times. as large as that of original specimens. impact toughness improved by 300 %, elongation ratio increased by 79 % hardness has a little improvement than before. the obtained results demonstrate that the new material has supermechanical properties with the addition of the micro allolyed process
並在常溫下對合金化鋼的力學性能進行了測試。試驗結果表明，通過微合金化抗拉強度提高了10 . 2 % ，沖擊韌性提高300 % ，延伸率提高了79 . 5 % ，硬度稍有提高。總之，加入復合稀土、釩、鎳等微合金元素提高了材料的綜合機械性能。In order to accomplish the main targets, the following jobs were done : the annealing of ct20 alloy tube at 6 different temperatures was carried out and the specimens with different microstructure were tested at room temperature ( rt ) and 20k. the tensile fractures were analyzed by means of sem and tem. the c t20a alloy specimens with 3 kind of oxygen equivalent ( oeq ) were prepared, and the tensile properties at rt and 20k, the impact toughness at rt and 77k were tested
為了研究顯微組織和間隙元素含量變化對兩種合金低溫塑韌性的影響，研究中主要作了如下工作：對ct20合金管材進行了六種溫度的退火處理，測試了不同組織試樣的室溫和20k拉伸性能，對拉伸試樣取樣進行sem和tem分析；制備出了ct20a合金三種氧當量實驗樣品，測試了相應試樣的室溫和20k拉伸性能以及室溫和77k沖擊性能，並取樣進行sem和tem分析；在以上工作的基礎上，對近鈦合金的低溫塑韌性機理進行了探討。6013 aluminum alloys containing different main alloying elements minor alloying elements were designed and prepared by ingot - metallurgy processing. the tesile mechanical and aging properties of the studied alloys were tested ; the microstructure of those alloys were observed and analyzed using optical microscope ; the influence of main alloying element mg, si, minor alloying elements mn, cu and homogenization process on the structure and property of studied alloys were studied
採用鑄錠冶金方法，設計並制備了不同合金元素含量的6013鋁合金，將鑄錠熱加工以後，測試了合金的拉伸力學性能和時效性能，採用金相顯微鏡觀察分析了合金的顯微組織結構，研究了合金中主合金元素mg 、 si ，微量元素mn 、 cu添加量、均勻化溫度和時間對合金組織和性能的影響。分享友人