熱拉伸成形 的英文怎麼說
中文拼音 [rèlāshēnchéngxíng]
熱拉伸成形
英文
hot stretch forming-
The tensile strength and young ’ s modulus of cf / ep specimens before and after vacuum thermo - cycling were measured by an electrical universal material testing machine. an electron scanning microscope was used to perform the surface morphology and fractography of specimens
真空熱循環試驗前後cf / ep層合材料的拉伸性能由電子萬能材料試驗機完成,本文利用掃描電鏡觀測試樣表面形貌和拉伸后的斷口形貌。In this investigation carbon black - filled electrical conductive composites of poly ( ethylene terephthalate ) / polyethylene were first prepared through the single - screw melt - blended extrusion, then drawing, followed by the quenching and subsequent press molding. the relationships among the influencing factors including composition, hot stretching ratio and compatibilizer, morphology and properties of composites were systematically investigated. positive temperature coefficients effect and crystallization behaviors of composites were preliminarily analyzed
本文擬採用單螺桿熔融共混擠出?熱拉伸?淬冷的新的成型方法制備炭黑填充的pet pe復合導電材料,熱拉伸的目的是使材料的分散相( pet相)在加工過程中原位形成纖維,而炭黑基本分散在纖維中或纖維的表面上,使炭黑粒子間間距減小,形成更多的導電通路,從而提高材料的導電性能,同時保持或提高材料的力學性能。Third the " masterbatches " were porphyrized, and the " masterbatches " and pe were premixed, and were extruded by an extruder. the extrudate was hot - stretched by a take - up device with two pinching rolls to make the microfibers formation, and then palletized
再將其粉碎,按比例與pe在塑料擠出機上擠出並熱拉伸成片,擠出溫度設定為pet的加工溫度,熱拉伸的目的是讓pet cb母料形成纖維。Contents of re have an effect on the tensile mechanical properties at high temperature to some degree. proper amount of re can improve b & 0. 2 apparently and 5 a little, because re can form compounds of good thermal stability with magnesium, which can be effectively strengthened by heat treatment
試樣中稀土的含量影響試樣的力學性能指標_ b (抗拉強度) 、 _ ( 0 . 2 )和延伸率:適量的稀土可顯著提高_ b 、 _ ( 0 . 2 ) ,並一定程度上提高其延伸率,這是因為稀土與鎂可形成本身熱穩定性非常好的化合物,並且可時效強化。In this paper, 130mm diameter hot - rolled bars ( 3 transus temperature is 798 c ) were used in experiments. the superplastic property of ti - 1023 alloy was studied systematically by the experiments of tensile and compression. the preparation method of fine - crystalline structure and the processing parameters of superplastic forging are optimized
本文以130mm熱軋棒材為原材料,通過超塑性拉伸和超塑性壓縮試驗,對ti - 1023合金的超塑性進行系統研究,研究坯料細晶組織制備方法,優化超塑成形工藝參數,為高筋薄腹板復雜形狀ti - 1023合金鍛件超塑性等溫模鍛工藝的制定提供試驗依據。Based on the characteristics of silicon whisker, the research on the modification of pa6 by silicon whisker sio2 - jx was made, and the result showed that the tensile strength, impact strength, brinell hardness, and heat resistance increased with the increase of the content of the whisker ; sio2 - jx could replace short glass fiber in the modification of pa6, improving the heat distortion temperature, removing the appearance of glass fiber, reducing shrinkage and the cost
摘要利用晶須矽纖維狀的特性,對其填充于龍玻纖改性進行研究,結果表明,隨晶須用量的增加,材料的拉伸強度、沖擊強度,布氏硬度、耐熱溫度均得到提高;晶須矽可取代短玻纖使用,提高熱變形溫度、消除玻纖外露,降低收縮率及生產成本等。分享友人