查询词典 high temperature

In this thesis, the phase diagram of Zn-Al binary system on 10~69.5 w% was reinvestigated by using differential scanning calorimeter, X-ray diffraction and pushrod dilatometer. The process of isothermal transformation during the aging of high-Aluminum-Zinc-based alloy was studied by using differential scanning calorimetry, and the aging behavior of the alloy was analyzed at the aspect of thermal analysis kinetics. The change of microstructure which the alloy was being heated was observed on high-temperature metallurgical microscope. The microstructure and wear-friction properties were compared among the alloys treated with several different heat treatment processes, and a model for heat treatment processes was proposed based on artificial neural network,so as to predict the relationship between friction coefficient and parameters of aging treatment such as aging temperature and time.

本文采用高温X射线衍射、示差扫描量热分析、热膨胀等方法重新测定含锌量范围为10％～69.5％的Zn-Al系二元相图，利用示差扫描量热分析法，研究高铝锌基合金时效等温转变过程，并从热分析动力学的角度分析高铝锌基合金合金时效行为；使用高温金相显微镜观察合金加热时的组织变化；比较几种不同热处理工艺对高铝锌基合金显微组织与耐磨性能的影响并利用人工神经网络建立高铝锌基合金热处理工艺模型，预测合金摩擦系数随时效温度及时间变化规律。

The experimental results denoted that the finer pearlite along the austenite boundaries in the as-cast Cr30Ni20NRE steel disappeared first under long-term and high-temperature service condition, and that an umber of Cr- richened carbides were formed due to unila-teral carburizing at long-term and high- temperature, consequently causing Ni to concentrate, bulging and calalyzing decomposition of the carburizing gas.

试验结果表明，长期在高温条件下服役，铸态Cr30Ni20NRE耐热钢中沿奥氏体晶界的珠光首先融入奥氏体，长期高温单边渗碳形成大量富铬碳化物，促使镍富集并起泡形成瘤状物，催化含碳气体的分解；表层瘤状物使辐射管表层疏松，表面积扩张，加快了碳向基体的渗入，提供了碳化物持续长大的条件，并引起沿碳化物周边开裂和奥氏体基体严重萎缩；合金元素的重新分布造成主合金元素铬和镍产生两极分化，镍和硅的富集促使石墨化，与侵入的氧形成内部氧化空洞和膨胀疏松，最终导致构件穿孔失效。

The main kinds of the "SongXue Brand" are high-transformation type amylum saccharified enzyme,high-temperature resistant α-amylase,BAA- middle temperature resistant amylase ,pepsin,cellulase,feed complex enzyme and alcohol instant active dry yeast.

主要品种有&松雪&牌：高转化率糖化酶、耐高温α-淀粉酶、BAA-中温淀粉酶、酸性蛋白酶、纤维素酶、饲料复合酶和酒用活性干酵母、&天科&牌α-乙酰乳酸脱羧酶。

Benefit from the Clapeyron slope of mineral physics experiment at high temperature and high pressure, we translate our topography result of the discontinuity to the mineral temperature variation, thus our method can be used to detect the subducted slab、hotspots and plume.

利用物质高温高压试验的克拉贝隆曲线斜率的结果，将得到的界面起伏转化为温度变化的信息，为探测俯冲板块和热点热柱提供依据。

AFTER THE OWNERSHIP TRANSFER,IN ORDER TO STRENGHTEN THE MANUFACTURING CAPABILITY,THE COMPANY PURCHASED MANY NEW EQUIPMENTS LAST YEAR,THERE ARE CNC LINE CUTTING MACHINE,CNC STATOR COIL WINDING MACHING,CNC SPOT WELDING MACHINE,BELT SAW CUTTING MAHCING,HEATTREATMENT MODIFIED EQUIPMENT,500T FUEL PRESSER,CNC LATHE,STATOR AND ROTATOR LIQUER IMMERSION AND DRYING PRODUCTION LINE,SINGLE BOLT PRESSER,ARMATURE PRODUCTION LINE,STARTER ASSEMBLY AND TESTING LINE,LIQUER SPRAY PRODUCTION LINE,GERMANY TOX COMPANY PUNCHING AND CONNECTING FACILITY AND GERMANY NUT FASTENING FACILITY,AND WE ALSO PURCHASE THOSE ADVANCED TESTING FACILITIES SUCH AS THE DOMESTIC MOST ADVANCED COMPREHENSIVE TESTING UNIT,THREE DIRECTION HIGH AND LOW TEMPERATURE CHANGE AND VIBRATION TESTING UNIT,HIGH TEMPERATURE TESTING BOX.

企业转制后，为提高产品制造能力已购置生产设备：数控线切割、数控定子绕线机、数控点焊机、带锯床、热处理调质设备、500吨油压机、数控机床、定子、转子浸漆干燥线、单螺杆空压机、电枢生产线、起动机总装及试验线、喷漆线、德国TOX公司冲压连接设备和德国的螺栓紧固设备。试验设备：购置目前国内最先进的起动机综合试验台、三轴向高低温交变振动试验台、高温试验箱等试验设备。

While the PR.S additive highly improved the high temperature performance of asphalt mixture, the immersion stability performance on a certain degree was declined, so the cement as a filler is used for studying the high temperature and immersion stability performances.

掺加PR.S添加剂在大幅提高沥青混合料高温性能的同时，造成了其水稳定性能一定程度的下降，为此，采用水泥作为填料对其高温及水稳定性能进行研究。

In order to solve the problem of copper foil rusted on high temperature,passive liquid of Cr-Zn-Ni-H system was studied,the effect of conditions on anti-high temperature oxidation function of layer was discussed.

为了解决铜箔在高温下的氧化变色问题，本文对体系钝化液进行了研究，讨论了工艺条件对涂层高温抗氧化性能的影响。

The high temperature endurance limit and creep rupture strength,organization change in high temperature and the crack resistance are systematically studied.

结果表明：FNA组合接头具有较高的高温持久强度和蠕变极限，可大幅度提高设备的服役寿命，是取代旧接头形式的理想技术方案

In order to disclosure new and old concrete bonding mechanics performance and mechanism under high temperature, the paper studies the influence of high temperature on new and old concrete bonding mechanics behavior with two types adherences: bonding first to heating second and heating first to bonding second.

为了揭示高温下新老混凝土粘结的力学性能和粘结机理，本文分先粘结后高温和先高温后粘结两种类型研究了高温对新老混凝土粘结力学性能的影响。

Transition metal borides and inorganic boron-containing compounds, such as TiB〓, BN, B〓C and BP, are one of the most important groups for application in high-temperature performance, electronics and catalysts. Traditionally, they were prepared by high-temperature reactions; however, the products were beyond nanometer scale.

中文题名溶剂热合成硼化物及非金属含硼化合物纳米材料副题名外文题名论文作者谷云乐导师钱逸泰学科专业无机化学研究领域\研究方向学位级别博士学位授予单位中国科学技术大学学位授予日期2003 论文页码总数70页关键词纳米材料硼化物溶剂热合成馆藏号BSLW /2003 /O613 /6 硼化物、非金属含硼化合物功能材料（如硼化钛、氮化硼、碳化硼和磷化硼等）通常具有高硬度、高熔点、机械强度大、高温化学稳定性好等一系列优良性能，有些还具有奇异的光、电、磁、热学性能和催化活性，是一类最富潜力的非氧化物高温结构材料、电子材料和催化材料。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。