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冷却速度控制
相关语句
  control cooling speed
     Rolling the bar adopt delay cooling and had better control cooling speed within 1~3 ℃/s.
     30MnSi轧制时采取延迟冷却 ,冷却速度控制在 1~ 3℃ /s较好 ,吐丝和轧制温度的适当降低有利于得到强度较低、塑性较好的等轴铁素体晶粒 ;
短句来源
  control cooling rate
     The results showed that every effort should be made to control cooling rate 1 0℃/s≤V 8/5 ≤10 0℃/s in order to obtain stable and reliable mechanical properties and microstructures according to the technical requirements.
     得出为了保证工件稳定、可靠地获得要求的珠光体型转变产物和力学性能 ,必须使冷却速度控制在1 0℃ /s≤V8/5≤ 10℃ /s范围。
短句来源
  cooling rate is controlled
     In the production of semi solid billets of conventional Al Si alloys, suitable microstructure can be obtained under enough stirring intensity when the cooling rate is controlled within 0.5~3.0 ℃/s.
     对于通常的Al Si类合金的半固态加工坯料 ,在足够的搅拌强度下 ,熔体冷却速度控制在 0 .5~ 3.0℃ /s可得到较好的组织。
短句来源
  “冷却速度控制”译为未确定词的双语例句
     2. The range of controlling the cooling speed is wide;
     2)冷却速度控制范围广;
短句来源
     The results reveal that Al-Pb alloy bearing of fine property might might be obtained by controlling the cooling rate of Al-Pb alloy that is cast on steel in 90-110℃/s.
     研究结果表明:在复有纯铝的钢背上直接浇注Al—Pb合金,冷却速度控制在90~110℃/s时,可以得到性能良好的铝铅合金轴承.
短句来源
     Adding 0.01% Vanadium and Tianium to 16Mn steel, the tiny organize can be obtained, banded pearlite can be reduced and the property index of the steel is raised when rolling begin at /100 ℃ and controlled rolling in austenite recrystllization area and unrecrystllization area,then cooling with 3~4 ℃/s.
     16Mn钢中加入 0 .0 1%钒、钛 ,110 0℃开轧、85 0℃终轧 ,分别在奥氏体再结晶区及奥氏体未再结晶区控制轧制 ,轧后给以 3~ 4℃冷却速度控制冷却 ,得到的轧件组织细小、带状珠光体明显减少 ,钢材的各项性能指标均得到了较大的提高。
短句来源
     The isothermal transformation curve and continuous cooling curve of U71Mn 75 kg/m heavy rail steel were measured. According to the results of isothermal transformation and continuous cooling transformation, the optimal eutectoid structure in the heavy rail steel could form when the cooling velocity was controlled between 2 ℃/s and 8 ℃/s.
     研究了U71Mn75kg/m重型钢轨钢的等温转变曲线及连续冷却曲线,发现将冷却速度控制在8~2℃/s之间,可获得强度高、耐磨性好的珠光体;
短句来源
     The results show that then the workers use controlled rolling in Austenite recrystallize zone and by controlled cooling at 6~ 10℃/s,after rolling for 60Si2Mn steel,the workers may obtain structure of minute ball Peralite plus a little Ferrites,so that strength and toughness of steels can be increased,at the same time reducting decarburization.
     研究表明:60 Si_2Mn钢采用奥氏体再结晶区控轧,轧后以6~10℃/s冷却速度控制冷却,可获得球团细小且均匀的珠光体加少量铁素体组织,热轧钢材的强韧性显著提高,同时减少了脱碳。
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    This paper studies the influence of on-line controlled cooling speed after controlled rolling upon the mechanical performances and structure of the low-carbon C-Mn-Mo-Nb steel sheets.From the experimental result it shows: when the cooling speed≥10℃/s, σs will completely reach and exceed class X_(70), △σs may reach 8.5kgf/mm~2 as compared with the air cooling conditions (1℃/s). With increase of cooling speed, the ferrite grain and bainite structure will be refined. If the optimum cooling speed is choosed, the...

    This paper studies the influence of on-line controlled cooling speed after controlled rolling upon the mechanical performances and structure of the low-carbon C-Mn-Mo-Nb steel sheets.From the experimental result it shows: when the cooling speed≥10℃/s, σs will completely reach and exceed class X_(70), △σs may reach 8.5kgf/mm~2 as compared with the air cooling conditions (1℃/s). With increase of cooling speed, the ferrite grain and bainite structure will be refined. If the optimum cooling speed is choosed, the steel will gain the excellent comprehensive performance.This paper also makes a primary research on the atomized water cooling technology. The advantages of this kind of cooling method are as follows:1. Uniform cooling;2. The range of controlling the cooling speed is wide;3. Easy adjusment;4. Water saved over 50%.

    本文研究了控制轧制后在线控制冷却速度对低碳C-Mn-Mo-Nb钢板力学性能和组织的影响。实验结果表明,当冷却速度≥10℃/s时,σs完全达到并超过X_(70)级,同空冷条件(1℃/s)相比,△σ_s可达8.5kgf/mm~2。随冷却速度的增加,铁素体晶粒和贝氏体组织被细化,选择最佳冷却速度可使钢材获得优良的综合性能。本文也对水的雾化冷却技术进行了初步研究。这种冷却方法的优点:1)冷却均匀;2)冷却速度控制范围广;3)容易调节;4)可省水50%以上。

    In this paper, the behavior of the interal oxidation of 20CrMnTi steel in carburized process is comprehensively analysised with the scanning Auger electron probe, the electron probe, the SEM and the TEM.The mechanism of the oxidation on the carburized surface and the effect of the oxidation on the surface carbon content, the distribution of the alloying elementes in the surface layer and the quenched struture are studied.

    本文通过扫描俄歇微探针(AES)、EMX型电子微探针(EPMA)、X射线衍射仪和透射电镜综合分析了20CrMnTi钢渗碳过程中的氧化行为,研究了渗碳表面的氧化机制,氧化对表面碳量、表层合金元素分布及淬火组织的影响。结果表明,渗碳内氧化除按晶界优先氧化型机制形成外,平行生长型机制也起作用。电镜观察证实,表面氧化造成了淬火组织沿层深分布的不均匀性变化。最表层是极细珠光体,该层下面是针状珠光体+上贝氏体,再下面是上贝氏体+马氏体组织。研究指出,提高淬火冷却速度是控制并减小内氧化淬火非马氏体层深的有效措施。

    Effect of forging process on the microstructure and mechanical properties of steel 35MnVS was studied by means of heat-simulator GLEEBLE 1500, met-alloscopy and electron microscopy. The results indicate that the microstructure of 35MnVS will not be coavsened obviously as heated up to 1200℃. It was found that the main factors to control the properties of steel 35MnVS are the final forging temperature and cooling rate, and a good combination of mechanical properties will be obtained by properly controlling the...

    Effect of forging process on the microstructure and mechanical properties of steel 35MnVS was studied by means of heat-simulator GLEEBLE 1500, met-alloscopy and electron microscopy. The results indicate that the microstructure of 35MnVS will not be coavsened obviously as heated up to 1200℃. It was found that the main factors to control the properties of steel 35MnVS are the final forging temperature and cooling rate, and a good combination of mechanical properties will be obtained by properly controlling the final forging temperature (950-1000℃) and cooling rate (≯2℃/s). If controlling the deformation in the range from 15% to 45%, the steel will show a satisfactory strength and toughness along with the increase in deformation after air-cooling.

    利用GLEEBLE 1500热模拟试验机、光学及电子显微镜等手段,研究了锻造工艺对易切削非调质钢35MnVS显微组织与机械性能的影响。结果表明:该钢加热至1 200℃时组织仍无明显粗化。终锻温度与锻后冷却速度是控制该钢性能的主要因素。适当控制终锻温度(950—1 000℃)和锻后冷却速度(不大于2℃/s)可获得良好的综合机械性能。在形变量15%—45%范围内,随形变量的增大,钢在空冷后亦可获得满意的强韧性。

     
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