shearing steel 中文意思是什麼
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Aiming at technical features and technology requirements for cold bending forming production line of steel bar for packing case, equipment including in such line has been introduced with emphasis on working principle and devices for burr trimming and opening piercing, on control principle of hydraulic expanding and flying shearing on the line
摘要針對包裝箱鋼條冷彎成形生產線的技術特點及產品工藝要求，介紹了包裝箱鋼條冷彎生產線的設備組成；重點闡述了包裝箱鋼條的在線預沖毛刺及豁口孔設備的工作原理及裝置、包裝箱鋼條產品的在線液壓擴孔及液壓飛剪技術的控制原理。 -
The results indicated that the dimension, shape and purity of base material could meet the functional demand of solid lubricant ; the thermal decomposition temperature of ptfe resin exceeds 400 c, but organic and inorganic packing filler added in ptfe made the water absorption rate of composite material increased, melting temperature and decomposition temperature decreased, in the meanwhile oxidative decomposition reaction was accompanied ; polar groups such as c = o, c - o - c and so on in the carbon fiber surface is advantageous to increase compatibility with other components and interlayer shearing strength ; uniform design experimental method could help to find the relationship between formula and frictional property by relatively small tests. the developing trend of each formula ' s friction coefficient could be showed by fitting curve ; the friction coefficient with no copper powder or graphite in formula was relatively big. this fact showed that copper powder and graphite should be used cooperatively ; it was found that when the ratio of copper powder to graphite by weight is 15 : 60, 30 : 30 - 40 and 60 : 15 - 30 respectively, the friction coefficient was relatively small. the degree of crystallinity of pure ptfe reached maximum by air cooling and the abrasion loss also reached maximum among three ones ; at the same time, the abrasion loss of solid lubricant sample was also the biggest among three ones ; when solid lubricant matched with 45 # steel axle or gcrl5 steel axle, lubricant transfer film could be formed on metal surface, thus direct contact between the surface of metal friction pair rings was reduced. their working life was elongated extremely ; there was mainly much graphite, a little ptff, moo3, feso4, cus and so on in lubricant transfer film
試驗結果表明：所選原料的尺寸、形狀及純度可滿足固體潤滑劑的性能要求；聚四氟乙烯樹脂熱分解溫度超過400 ，但在ptfe中加入無機填料會使復合材料吸水率提高，熔融溫度及分解溫度降低，且伴有氧化分解反應；碳纖維表面含有c = o及c - o - c等極性基團，有利於提高其與其它組分的相容性，提高層間剪切強度；均勻設計試驗方法能夠用較少的試驗次數找出配方與摩擦性能間的關系，擬合曲線基本能表示各配方的摩擦系數發展趨勢；配方中不加銅粉或不加石墨，其摩擦系數均較高，說明銅粉和石墨應該配合使用；當銅粉15份、石墨60份時，銅粉30份、石墨30 - 40份時，銅粉60 、石墨15 - 30份時，摩擦系數均具有較低值；純聚四氟乙烯樹脂在空氣冷卻時結晶度最大，磨損量也是三者中最大的；同時，固體潤滑劑試樣在空氣冷卻時的磨損量也是三者中最大的：不論是固體潤滑劑與45 #鋼軸配副或是固體潤滑劑鑲嵌入銅套后與gcr15鋼軸配副，在金屬表面均可形成潤滑轉移膜，從而減少金屬摩擦副表面間的直接接觸，大大延長其使用壽命;轉移膜中主要含有較多的石墨、少量聚四氟乙烯、 moo 。 -
Steel bar straightening and shearing machine
鋼筋拉直切斷機 -
In ecap route c, in order to accommodate the severe shear deformation the deformation form of lamellae cementite in pearlitic steel include periodical bending, periodical shearing and shearing fracture etc
在c方式ecap變形中，珠光體鋼65mn中的滲碳體以周期性的彎曲變形，周期性的剪切變形，剪切斷裂等形式協調ecap的強烈塑性變形。 -
Simultaneity, through contrast analysis validate that antiseimic capacity of expansion web is better than that of steel web. therefore, based on the experiences summed up by precedence, the formulation for calculating the crack load and limit load of brick masonry house reinforced by expansion web is advanced, which provides project reference. based on the analysis and studies of masonry shearing strength, test of prestressed single brick masonry wall, and test of prestressed brick masonry house models, and ect, the article has carried through several aspect research as below : 1. a series of experiment on material capability of expansion web, including intensity of single thread and expansion web, ect ; 2. research on influence of loading and destroy of masonry brick building reinforced by expansion web under lowcyclic loading ; 3. study of impact of expansion web on ductility, energy dissipation, intensity, ect under the same situation as above ; 4. put forward computation formulation of masonry brick building reinforced by expansion web
本著以上的研究目的，本文在分析和借鑒前人砌體抗剪強度理論、預應力單片墻試驗研究、預應力模型抗震性能試驗研究等基礎上，進行了以下幾方面的研究工作: 1 .作為一種新型結構材料擴張網，進行了一系列的材性試驗（單絲強度、網片強度和在砂漿中被約束條件下的網片強度及其相應的彈性模量） ； 2 .研究了水平荷載往復作用（低周交變）下，普通鋼絲網和擴張網砂漿對砌體結構抗裂及承載能力和破壞形態的影響，並將這兩種材料的加固效果進行了對比； 3 .上述狀態下，兩種網片水泥砂漿對砌體結構變形、延性、耗能、剛度退化等抗震性能的影響及其影響效果的比較； 4 .提出擴張網水泥砂漿加固砌體結構的抗剪強度計算建議公式。 -
On the basic of former research men ' s experience, 18 experimental members ( including 9 simple beams and 9 restrained beams ) are designed and tested. in the experiment, phenomena are observed and record by taking photos in the whole process from the first crack appears to test members crash completely, experimental data is attained including load values of crack - appear load, critical load and terminal load, stress values of reinforcing steel bar stress, compressed concrete stress and beam flank stress and values of deflection etc. by analyzing the crack ' s appearing and developing form and stress values of concrete and steel bars, the crash modes of test beams are defined ; shearing force - deflection curves are contrasted and analyzed ; the effects on shear strength of the three factors as shear span ratio, concrete strength and restraining moment are also analyzed
借鑒已有試驗的經驗，本文設計和完成了對18根超高強混凝土無腹筋梁（包括9根簡支梁和9根約束梁）在集中荷載下抗剪強度的試驗，觀察了試件從裂縫出現到完全破壞失去承載能力全過程的試驗現象並通過拍照進行記錄，獲得了試件的斜裂縫出現荷載、臨界斜裂縫荷載和極限荷載等荷載值和縱筋應變、混凝土受壓應變和梁側混凝土應變等應變值以及撓度值等。 -
Besides, on the basis of the test data under bending and torsion and the theoretical analysis on the tubular, the relative relationship between the bearing values is derived. second, based on the elastic theory, this paper deduces the rules of stress distribution and main physical and geometric parameters by analyzing the elastic stress distributions when the tubular is under such conditions as torsion, bending, shearing, combined bending and torsion, and combined shearing and torsion ; additionally, taking the strength criteria of concrete and steel as reference, the paper proposes a set of theoretic equations for the relative relationship between the bearing values
本文利用彈性理論對扭轉、彎曲、剪切、彎扭聯合作用、剪扭聯合系列作用下的構件彈性應力分佈進行了研究，得出應力分佈與主要物理和幾何參數的規律；同時引入混凝土及鋼的強度準則，得出了彎扭、剪扭復合應力作用下的承載力相關關系的理論方程，可供工程設計使用。 -
But because there are shearing stress and removing stress on the gluing plane between the steel plates and concrete, the phenomenon of premature removing of the steel plates in the strengthen beams is easy to take place
但是，由於鋼板和混凝土粘結面上存在粘結剪應力和剝離拉應力，使粘鋼加固梁容易發生鋼板端部和彎剪區段跨中的早期剝離破壞現象。 -
On the basis of comprehensive analyses and studies, now the centrifuge concrete filled thin - walled steel tubular is regarded as one of the ideal substitutes of the traditional concrete poles, and there has been a practical call for the researches on it unfortunately, present evidence is all for the capabilities of the tube under single load but there is hardly any datum relating to those under the combined loads of bending and shearing torsion that many members applied in electric power projects inevitably bear to different extent. this paper intends to improve this situation with the experimental researches and related theoretical analyses done on the subject
在電力工程結構中，由於使用功能要求，許多結構中不同程度地存在著受扭工作狀況，及彎扭、剪扭聯合作用工作狀況，然而迄今為止，國內外對離心鋼管混凝土結構的工作性能的研究大多局限在單一荷載工況情況下，尚未見組合荷載作用的研究，因此，能否深入了解離心鋼管混凝土構件的扭轉和在組合作用下的受力特性，成為影響該結構形式能否進一步推廣應用和發展的關鍵技術問題。 -
Powerful and lightweight design for shearing router tabs. manufactured from 356 t6 aluminum. heat - treated precision ground tool steel shear blades
大功效、輕質量的設計用於切片等。用356t6號鋁製造而成。用工具鋼底刃對其進行精確的熱處理。 -
In the past, there were a large number of research studies on the behaviour of concrete - filled steel tubes ( cfst ) subjected to compression, bending or combined compression and bending, and there were a few research studies on the behaviour of cfst subjected to pure torsion, compression - torsion, bending - torsion, compression - bending - torsion and compression - bending - shearing. however, the behaviour of cfst members under complicated loading conditions still needs to be studied deeply
以往，研究者對鋼管混凝土構件在軸壓、純彎和壓彎荷載作用下的性能進行了大量研究，對純扭、壓扭、彎扭、壓彎扭及壓彎剪受力狀態下的工作性能也有一些研究報道，但研究工作，尤其對壓彎扭剪構件的工作機理的研究仍有必要深入進行。 -
Steel bar shearing machine
鋼筋切斷機 -
In steel frame beam - to - column connections play a vital role in transferring bending of moments and shearing force, and their behavior affects steel frames overall performance under loads
鋼框架中樑柱連接起著在兩種構件之間傳遞彎矩和剪力的作用，是鋼框架的主要組成部分，它的性能直接關繫到結構的整體反應。 -
Abstract : by the using of the theory of plastic mechanics, a calculated formula of ultimate strength of shearing stress is obtained for metallic materials with torsion of circular shaft, and the experimental results about low - carbon steel are given
文摘:利用塑性力學基本理論，建立了具有塑性屈服及強化特性金屬材料圓軸扭轉的剪應力強度極限的計算公式，並給出了低碳鋼剪應力強度極限的處理結果 -
In the finite element method analysis, the constitutional relationships of steel and three - dimension compressed concrete were conducted by using increment plastic theory. in the paper a serious of joint models were analyzed by using the program ansys and the mathematical formulas for determination of load - carrying capacity of shearing and bending in the joint region were also given. at last the influence of many parameters to the load - carrying capacity in the joint region was analyzed and some suggestions were given for the design in the practical projects
在有限元分析中，用增量塑性理論推導出鋼材以及三維受壓混凝土的本構關系，重點是三維受壓混凝土的本構關系，建立了模型的單元剛度矩陣，給出了程序中非線性方程的求解方法，並用ansys軟體計算了一系列節點模型，得出了節點域的抗剪、抗彎承載力及各參數對節點域承載力的影響情況，並用試驗結果和計算公式驗證了有限元計算結果。 -
Based on experimental research and theoretical analysis, investigations on the new type of joint are made systematically, the main contents and results include the following items. 1 four specimens of new joints between cfrt columns and steel beams are designed. by low - cyclic reversed load test, skeleton curves of new joints and shearing deformation in joint core area are studied, the influence of parameters, such as concrete cores, length of stiffener, and relative dimensions of column and beam, is discussed
本文在分析現有節點方案特點的基礎上，提出了角鋼加勁式節點方案，並採用試驗和理論分析相結合的方法，對這種新型節點進行了系統研究，主要研究內容與成果如下： （一）設計了4個新型方鋼管混凝土柱?鋼梁節點的試件，通過對新型節點的低周反復荷載試驗，研究了新型節點的骨架曲線和節點核心區剪切變形等，探討了內填混凝土、加勁肋長度和樑柱相對尺寸等對節點抗震性能影響。
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