thermal impact

Power aging, storage at high temperature, thermal impact and short-time overloading were carried out for the metal film resistors with the temperature coefficient and surface temperature rise of resistors measured.

对电阻器进行了功率老化、高温存贮、热冲击、短时过载等可靠性试验，测量了其TCR和表面温升。

A quick comparative test approach for the property in withstanding thermal impact of metal material is put forward.

基于加速寿命试验原理，提出了一种简捷、实用的金属材料抗热冲击性能的快速对比试验方法。

Experiment results showed that the thermal properties, impact strength and dielectric strength of low density polyethylene were improved by Nano-MMT.

试验结果表明，纳米蒙脱土能提高低密度聚乙烯的耐热性能、冲击强度以及介电强度。

Calculation of thermal load and impact factor analysis for hypersonic vehicle

高超声速飞行器热载荷计算及影响因素分析

With respect to the prevention of membrane fouling, less hydrophobic membranes are normally favored, but hydrophilic membranes are susceptible to chemical and thermal impact in their application.

亲水性膜有助于减缓膜污染，但是其在应用过程中易受化学和热力学的影响。

It often occurs that the interface cracked bodies withstand mechanical and thermal impact loadings in engineering practice. Most cracks presented in engineering practice are three dimensional.

在工程实际中，含界面裂纹的结构经常会遇到承受热载荷、机械载荷共同作用下的冲击问题，并且实际工程结构中的裂纹大多数为三维裂纹。

Analysis of Thermal Impact Factors on Batching Transportation of Cool and Hot Oil for Long-distance Pipelines

能力利益，能力限度照顾长输管道冷热油交替输送热力影响因素分析

Axle Load Conversion for Concrete Pavements under Thermal Stress Impact

温度应力作用下混凝土路面的轴载换算

Thermal impact to PCBA during reflow soldering is considered one of the main drivers for manufacturing defects.

在再流焊过程中受到热冲击已成为PCB组件生产过程中产生缺陷的主要原因之一。

The finite element code LS_DYNA is used to investigate the response of the axisymmetry cylindrical shell under the thermal impact, and the curves of displacement vs time and that of stress vs time are obtained.

最后利用有限元程序LS-DYNA对轴对称圆柱壳受高速热冲击作用进行了计算机仿真分析，得到了位移时间曲线和单元的应力时间曲线，同文献已有的结果吻合的较好。

Because of different characters of thermal load and impact load, the buckling phenomena of cylindrical shells are different.

然而，由于热载荷与机械载荷的特性不同，两种载荷单独作用或两者耦合下圆柱壳的屈曲形态有一定的差异性。

Influence of thermal cycle on impact toughness of HAZ of high-Nb pipeline steel

热循环对高铌管线钢焊接热影响区冲击韧性的影响

Combined with the tests, the author uses the damage mechanics theory to study the self-reinforced damage mechanism, reactor life of fatigue damage, and the decay of residual stress under thermal impact action.

从损伤力学理论的角度，结合试验，对反应器的自增强损伤机理、反应器疲劳损伤寿命、热冲击下反应器残余应力的衰减等问题展开研究工作。

Using K-Na modification for hot metal during smelting resulted in better thermal impact resistance and thermal fatigue resistance.

在熔炼过程中，铁水采用K－Na变质剂处理，可获得良好的耐热冲击和耐热疲劳性能。

Thermal Impact of the Products Pipeline on the Crude Oil Pipeline Laid in One Ditch Numerical Simulation of the Soil Temperature Field of Oil Pipeline with Heating Tracer

双管同沟技术中的土壤温度场的计算有伴热管输油管道周围土壤温度场的数值计算

The Stress from Thermal Impact with a Rapid Temperature Drop in the Concrete Surface

混凝土表层的冷击应力

High-performance sphere valve, which can resists high temperature, high pressure, wearing, thermal impact and heat erosion, is one of key components used in coal liquefaction engineering, steel smelting, petroleum chemical engineering and nuclear power.

在煤液化工程、钢铁冶炼、石油化工、核电等重大工程项目中，耐高温、耐高压、耐磨损、抗热冲击、抗热腐蚀球阀一直是关键部件之一。

Then a reference thermal image whose impact of transmission attenuation and load voltage can be neglected will be selected from the thermal images collected.

然后，从拍摄的多幅热像中，选取一幅传输衰减和负荷状态影响可以忽略的热像作为参考。

The Simulation of the Dynamic Response of Short Cylindrical Shell under Thermal Impact

短圆柱壳在热冲击作用下动力响应的计算机模拟

Thermal and impact metamorphism in the JILIN METEORITE

吉林陨石的热变质及冲击变质研究

The mechanical shock and thermal impact in the machining process of discontinuous grinding polycrystalline diamond with slotted diamond wheels were investigated systemically by the simulation experiments of ultrasonic vibration and pulse laser heating respectively.

分别采用超声振动冲击和脉冲激光加热技术对开槽金刚石砂轮断续磨削加工聚晶金刚石过程中的机械冲击和热冲击进行了模拟实验研究。

The main categories of no impact printers are ink-jet printer, thermal printers, and laser printers.

主要的非击打式打印机的种类有 喷墨 打印机 、 热敏打印机和激光打印机.

This paper analyzes the impact of axial thrust and thermal dilation on the safe operation of the unit after the modification and puts forward some necessary safety measures.

本文阐述了对供热汽轮机机组低真空供热改造后，机组轴向推力和热膨胀对机组安全运行影响的理论校核和分析，并提出减小和消除机组不安全隐患的必要措施。

With elegant shapenment, corrosion proofing, static electricity resistance, impact resistance and good thermal reliability.

具有外形美观, 耐腐蚀, 抗静电, 耐冲击及热稳定性好等优良性能.

Abrasive ratio, thermal stability, impact toughness and cohesive strength are main performance figures of PDC.

磨耗比 、 热稳定性 、 抗冲击韧性和结合强度是金刚石复合体的主要性能指标.

The paper use finite element analysis method analysis the thermal impact of PCBA during the reflow soldering, and building the temperature and stress distribution model.

本文利用有限元法对PCB组件在再流焊过程中的受热进行分析，建立瞬态温度场和应力场模型。

The influence of thermal oxygen on the tensile yield stress, tensile breaking stress, impact strength, elongation at break, melt point and the heat of melting of PF Nylon 1212 is investigated.

通过热氧老化试验，考察了热氧对尼龙1212拉伸屈服应力、拉伸断裂应力、冲击强度、断裂伸长率、熔点、熔融热的影响。

Modeling simulation and vibration analysis of rub induced thermal impact problem

摩擦热冲击问题的建模、仿真与振动特性分析

Finally, errors of fatigue, creep and thermal impact damage are analyzed for composite flight profiles.

最后根据综合飞行剖面进行疲劳、蠕变和热冲击等损伤的误差分析。

The tensile strength, impact strength, flexural strength, thermal properties and morphology of the composites were investigated.

研究了复合材料的拉伸强度 、 冲击强度 、 弯曲强度 、 形态及热性能.