查询词典 high temperature tempering

The shops sell professional-series of temperature control, high-temperature-series, electric products, the company is involved in: TDA series of temperature control instrumentation, TDW series of temperature control instrumentation, TEA series of temperature control instrumentation, XMT series of temperature control instrumentation, XMTA series of temperature control instrumentation , XMTD series of temperature control instruments, temperature control switches, temperature table, pressure gauge, double-metal thermometer, WRN thermocouple, WRE thermocouple, WRP thermocouple, WZP thermocouple, WRNK thermocouple, WREK thermocouple , WRCK thermocouple, WZPK thermocouple, sensors, Yahuang dual, dual screw, handheld digital thermometer, CU50 copper resistance, Pt100 ceramic platinum resistance, Pt100 stainless steel platinum resistance, Mica platinum resistance, high temperature wire, wire compensation , High temperature resistant fabrics, high temperature tape, yellow wax tube, since the income of resin, stainless steel tube of electric, electric carbon steel pipe tubes, electric heating of the brass, titanium tube electric tube, the single electric, electric water heaters use of, water, Pot use of electric heating, the sauna, explosion-proof electric heating pipe, iron core, Dianre Dai, box-type electric furnace, an electric stove, oven, the oven, melting furnace tin, nickel chromium resistance wire, iron wire chromium resistance, resistance zone, civilian Furnace wire, high-power industrial furnace silk, mica films, a variety of high temperature ceramic beads, ceramic pads, hairdryer batteries, electric furnace set, the furnace Church, outside the wire, stainless steel bolts, 2.60, 2.60, stainless steel bolts, stainless steel - Head bolt, the first half of stainless steel bolts, stainless steel pan head bolts, stainless steel expansion bolts, self-tapping stainless steel, stainless steel core pulling rivets, stainless steel jets hoop, stainless steel wire hoop, stainless steel plates, stainless steel bar, stainless steel flanges, stainless steel pipe, Stainless steel wire, a variety of metal hose bridge.

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全国免费服务热线：400 880 2959主营产品：盐雾腐蚀试验箱/二氧化硫试验箱/高温试验箱/低温试验箱/高低温试验箱/高低温湿热试验箱。/高低温交变湿热试验箱/台式恒温恒湿试验箱/恒温恒湿试验箱/精密干燥试验箱/真空干燥箱/高低温冲击试验箱/紫外光加速老化试验机/氙灯耐气候试验箱/换气式老化试验箱/臭氧老化试验箱/防锈油脂湿热试验箱/砂尘试验箱/箱式淋雨试验箱/摆管淋雨试验装置/滴水试验装置/霉菌交变试验箱/盐雾腐蚀试验室/大型高低温步入试验室/恒温恒湿试验室/盐雾恒温恒湿高温复合试验箱/温度老化室/真空紫外老化试验箱/机械式跌落试验台/电脑控制振动台/温湿度振动三综合试验机/温度快速变化试验箱

It 's mainly used in steel tubes of high 's mainly used in steel tubes of high temperature superheaters with surface temperature temperature superheaters with surface temperature ≤625℃ and high ≤625℃ and high temperature reheaters with surface temperature temperature reheaters with surface temperature ≤650℃, and high ≤650℃, and high temperature headers and steam pipes with surface temperature temperature headers and steam pipes with surface temperature ≤600℃.

主要主要用于壁温≤625℃的高温过热器、壁温≤650℃的高温再热器钢管，以及壁温≤600℃的高温集箱温≤625℃的高温过热器、壁温≤650℃的高温再热器钢管，以及壁温≤600℃的高温集箱和蒸汽管道，国内外已逐步用该钢代替和蒸汽管道，国内外已逐步用该钢代替T22、F12、TP304L、TP347H等，但该钢焊接性能T22、F12、TP304L、TP347H等，但该钢焊接性能也比较差，容易产生焊接冷裂纹，所以同样要求有合适的预热温度和及时进行焊后回火处也比较差，容易产生焊接冷裂纹，所以同样要求有合适的预热温度和及时进行焊后回火处理。

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It analyses the essential factors, structure, environment as well as functions of high-tech corporation system and compares the similarities and differences between high-tech corporation system and traditional corporation system; it analyses characteristics in each stage of high-tech corporation lifecycle as well as management roots which lead to the declination of high-tech corporation and researches into the similarities and differences between high-tech corporation lifecycle and other lifecycles, including traditional corporation lifecycle, industry lifecycle, product lifecycle and ecology lifecycle; it studies functional coupling in each stage of high-tech corporation lifecycle and puts forward ways to realize internal coupling of high-tech corporation system and external environment coupling; based on fundamental concepts of dissipative structure, it summarizes six inherent laws of system evolution and on the basis of those laws it advances six principles of high-tech corporation lifecycle management, it poses four sequential parameters of high-tech corporation system, analyses coordination and competition between them and then it advanced four principles of high-tech corporation management; it researches into various cycles in high-tech corporation and puts forward five measures of high-tech corporation management from the point of hypercycle theory; it studies the relations between carious innovation of high-tech corporation innovation system and sets up models of innovation motive forces and resistances, after that it analyses the alternation laws of innovation motive forces and resistances in each stage of high-tech corporation lifecycle, puts forward some measures to strengthen motive forces and lessen resistances and then from the angle of dissipative structure theory, it researches into relevant questions of high-tech corporation innovation management; it studies the location, identification, cultivation, cultivation and protection of high-tech corporation core competence and researches into the key elements of core competence management in each stage of lifecycle and then from the angle of synergetic, it discusses several questions of high-tech corporation core competence management; it studies seven common characteristics of successful high-tech corporation culture and puts forward the ways and measures to cultivate and innovate high-tech corporation culture after that it researches into the characteristics of corporation culture in each stage of lifecycle and discusses relevant questions of high-tech corporation culture management from the point of hypercycle theory; it studies interplay of high-tech corporation system and environment and researches into the development and management of high-tech corporation ecology system after that it analyses the construction and disintegration of high-tech corporation strategic alliance.

剖析了高新技术企业系统的要素、结构、环境与功能，比较了高新技术企业系统与一般企业系统的异同；剖析了高新技术企业在生命周期各阶段的特点及衰退的管理根源，探讨了高新技术企业生命周期与一般企业生命周期、产业生命周期，产品生命周期和生物生命周期的异同；研究了高新技术企业生命周期各阶段的功能耦合，提出了实现高新技术企业系统内部耦合及系统与外部环境耦合的途径；以耗散结构理论的基本概念为基础，总结归纳出系统演化的六大内在规律，据此提出了高新技术企业生命周期管理的六个原则；提出了高新技术企业系统的四个序参量，剖析了生命周期各阶段序参量的协同与竞争，进而提出了高新技术企业管理的四大原则；研究了高新技术企业中的各种循环，从超循环理论的角度提出了高新技术企业管理的五大措施；研究了高新技术企业创新系统中各种创新的关系，建立了创新动力和创新阻力模型，剖析了生命周期各阶段创新动力与阻力的变化规律，提出了增强创新动力与减小创新阻力的措施，从耗散结构理论的角度研究了高新技术企业创新管理的相关问题；研究了高新技术企业核心竞争力的定位、识别、培养及保护，剖析了生命周期各阶段核心竞争力管理的要点，从协同理论的角度研究了高新技术企业的核心竞争力管理的几个问题；剖析了成功的高新技术企业文化的七个共同特点，提出了培养和创新高新技术企业文化的途径及措施，研究了生命周期各阶段企业文化的特征，从超循环理论的角度探讨了高新技术企业文化管理的相关问题；研究了高新技术企业系统与环境的交互作用，探讨了高新技术企业生态系统的开拓与管理，剖析了高新技术企业战略联盟的组建与解体。

With the increased of tempering temperature, the content of tempering troostite decreased, meanwhile tempering sorbite and particles precipitation increased.

且随回火温度的升高，回火屈氏体含量降低，回火索氏体含量增加，第二相粒子析出增加。

Through a series of quenching, tempering, tensile testing, low-temperature impact test and metallographic analysis, we ultimately came to the following conclusions:(1) low-carbon alloyed steel 20CrMn2NiMoV quenching at 870℃ and tempering at 200℃, whose structure contains tempered dislocation lath martensite and few small bainite under mixed, has the best obdurability;(2) Carbon Steel 45CrMn2NiMoV quenching at 850℃ and tempering at 620℃, whose structure is sorbitic, has a performance less than that of low-carbon Alloyed steel, but it can also meet the basic design requirements.(3) Mn can substitute for the role of Ni within limited extent.

通过一系列淬火、回火、拉伸试验、低温冲击试验以及金相分析，最终得出以下主要结论：（1）低碳合金钢20CrMn2NiMoV经870℃淬火+200℃回火，得到回火位错型板条马氏体+少量细小下贝氏体的混合组织，具有最佳的强韧性配合；（2）中碳合金钢45CrMn2NiMoV经850℃淬火+620℃回火，得到回火索氏体组织，综合性能虽然不及低碳合金钢，但也能基本满足设计要求；（3）Mn在一定程度上能够替代Ni的作用，适量的Mn和Ni相互配合可以得到最佳的低温韧性，因此&以Mn代Ni&是低温钢材料研究开发中一条可行的适合我国资源状况的合金化思路。

Studied present measuring methods" advantages and disadvantages, and presented the necessity and importance of researching propellant transient heat transfer.2.according to 130 and aeronautic 90 rocket projectiles" structure, analysed and acquired physical and mathematical models for propellant transient heat transfer, also designed propellant temperature field simulation units for test.3.acquired discrete transient heat balance equation and temperature calculation program, and gave contrasting curves between experimental temperature values and program calculating temperature values as well as maximum errors and average square root errors between them.4.by programs based on the first class boundary condition, worked out temperature distribution in propellant temperature field simulation units at different time, analysed temperature field distribution law and main elements affecting heat transfer, acquired propellant mass weighted average temperature and one at the half position of propellant maximum thickness as well as maximum errors and average square root errors between them.5.established transient heat transfer mathematical model and temperature calculation program for the third class boundary condition, drew contrasting curves between temperature experimental values and calculation values and gave maximum errors and average square root errors between them, got temperature distribution in the simulation unit at different time and main elements affecting heat conduction, figured out propellant mass weighted average temperature and one at the half position of propellant maximum thickness as well as maximum errors and average square root errors between them.

分析了现有测试方法的优缺点，提出了研究推进剂瞬态导热的必要性和重要性。 2。根据130和航90两种火箭弹的结构，分析得到了推进剂传热的物理模型和数学模型，设计了推进剂温度场模拟实验装置。 3。得到了离散形式的瞬态热平衡方程和温度场计算程序，给出了实验温度与程序计算温度值的对比曲线及其最大偏差与均方差。 4。利用程序求出了第一类边界条件下、不同时刻推进剂温度场模拟装置中的温度分布，分析了温度场的分布规律和影响传热的主要因素，求出了推进剂质量加权平均温度和最大肉厚1／2处的温度时间曲线并给出了两者之间的最大偏差与均方差。 5。建立了第三类边界条件下的瞬态导热数学模型和温度计算程序，求出了温度实测值与计算值的对比曲线并给出了两者之间的最大偏差与均方差，得到了不同时刻温度场模拟装置的温度分布与影响导热的主要因素，求出了推进剂质量加权平均温度和最大肉厚1／2处温度及两者之间的最大偏差与均方差，讨论并确定了能代表130和航90推进剂温度的特征点的位置。

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Itanalyses the essential factors, structure, environment as well as functions of high-techcorporation system and compares the similarities and differences between high-tech corporationsystem and traditional corporation system; it analyses characteristics in each stage of-high-techcorporation lifecycle as well as management roots which lead to the declination of high-techcorporation and researches into the similarities and differences between high-tech corporationlifecycle and other lifecycles, including traditional corporation lifecycle, industry lifecycle,product lifecycle and ecology lifecycle; it studies functional coupling in each stage of high-techcorporation lifecycle and puts forward ways to realize internal coupling of high-tech corporationsystem and external environment coupling; based on fundamental concepts of dissipativestructure, it summarizes six inherent laws of system evolution and on the basis of those laws itadvances six principles of high-tech corporation lifecycle management; it poses four sequentialparameters of high-tech corporation system, analyses coordinfition and competition between themand then it advanced four principles of high-tech corporation management; it researches intovarious cycles in high-tech corporation and puts forward five measures of high-tech corporationmanagement from the point of hypercycle theory; it studies the relations between cariousinnovation of high-tech corporation innovation system and sets up models of innovation motiveforces and resistances, after that it analyses the alternation laws of innovation motive forces andresistances in each stage of high-tech corporation lifecycle, puts forward some measures tostrengthen motive forces and lessen resistances and then from the angle of dissipative structuretheory, it researches into relevant questions of high-tech corporation innovation management; itstudies the location, identification, cultivation, cultivation and protection of high-tech corporationcore competence and researches into the key elements of core competence management in eachstage of lifecycle and then from the angle of synergetic, it discusses several questions ofhigh-tech corporation core competence management; it studies seven common characteristics ofsuccessful high-tech corporation culture and puts forward the ways and measures to cultivate andinnovate high-tech corporation culture after that it researches into the characteristics ofcorporation culture in each stage of lifecycle and discusses relevant questions of high-techcorporation culture management from the point of hypercycle theory;' it studies interplay ofhigh-tech corporation system and environment and researches into the development andmanagement of high-tech corporation ecology system after that it analyses the construction anddisintegration of high4ech corporation strategic alliance.

剖析了高新技术企业系统的要素、结构、环境与功能，比较了高新技术企业系统与一般企业系统的异同；剖析了高新技术企业在生命周期各阶段的特点及衰退的管理根源，探讨了高新技术企业生命周期与一般企业生命周期、产业生命周期，产品生命周期和生物生命周期的异同；研究了高新技术企业生命周期各阶段的功能耦合，提出了实现高新技术企业系统内部耦合及系统与外部环境耦合的途径：以耗散结构理论的基本概念为基础，总结归纳出系统演化的六大内在规律，据此提出了高新技术企业生命周期管理的六个原则；提出了高新技术企业系统的四个序参量，剖析了生命周期各阶段序参量的协同与竞争，进而提出了高新技术企业管理的四大原则；研究了高新技术企业中的各种循环，从超循环理论的角度提出了高新技术企业管理的五大措施；研究了高新技术企业创新系统中各种创新的关系，建立了创新动力和创新阻力模型，剖析了生命周期各阶段创新动力与阻力的变化规律，提出了增强创新动力与减小创新阻力的措施，从耗散结构理论的角度研究了高新技术企业创新管理的相关问题；研究了高新技术企业核心竞争力的定位、识别、培养及保护，剖析了生命周期各阶段核心竞争力管理的要点，从协同理论的角度研究了高新技术企业的核心竞争力管理的几个问题；剖析了成功的高新技术企业文化的七个共同特点，提出了培养和创新高新技术企业文化的途径及措施，研究了生命周期各阶段企业文化的特征，从超循环理论的角度探讨了高新技术企业文化管理的相关问题；研究了高新技术企业系统与环境的交互作用，探讨了高新技术企业生态系统的开拓与管理，剖析了高新技术企业战略联盟的组建与解体。

The United Kingdom has pledged to provide technical assistance to the peacekeeping effort in Darfur, including airlifting supplies and equipment to assist the African peacekeepers.

英国承诺为达佛的維和努力提供技术帮助，包括提供非洲的維和部队空运补給和裝备。

Results: The level of ET-1mRNA in placental villus was significantly higher in pre-eclamptic women than that in control group.

结果：妊高征组患者胎盘绒毛组织ET-1 mRNA的表达较正常妊娠组明显增高。