Ferritic heat-resistant steel having excellent high temperature strength
and process for producing the same
    73.
    发明授权
    Ferritic heat-resistant steel having excellent high temperature strength and process for producing the same 失效
    具有优异的高温强度的铁素体耐热钢及其制造方法

    公开(公告)号:US6136110A

    公开(公告)日:2000-10-24

    申请号:US836446

    申请日:1997-08-18

    CPC分类号: C22C38/32 C22C38/22 C22C38/24

    摘要: This invention provides a ferritic heat-resistant steel suitable for a pressure-resistant member to be used at a temperature of 400 to 550.degree. C. The ferritic heat-resistant steel having an excellent high temperature strength contains, in terms of wt %, 0.05 to 0.15% of C, 0.10 to 0.08% of Si, 0.20 to 1.5% of Mn, 0.5 to 1.5% of Cr, 0.10 to 1.15% of Mo, 0.005 to 0.30% of V, 0.005 to 0.05% of Nb, 0.0002 to 0.0050% of B, and if necessary, 0.005 to 0.05% of Ti and 0.4 to 1.0% of W, either alone or in combination, and having a structure comprising not greater than 15% of pro-eutectoid ferrite, in terms of a metallic structural area ratio, and the balance of bainite. The present invention provides also a process for producing a ferritic heat-resistant steel having an excellent high temperature strength, comprising tempering the steel having the composition at a temperature within the range 950 to 1,010.degree. C., and conducting tempering while keeping a T.P. value within the range of 18.50.times.10.sup.3 to 19.90.times.10.sup.3.

    摘要翻译: PCT No.PCT / JP96 / 02249 Sec。 371日期:1997年8月18日 102(e)日期1997年8月18日PCT提交1995年11月2日PCT公布。 出版物WO96 / 14445 日期1996年5月17日本发明提供一种适用于在400-550℃的温度下使用的耐压构件的铁素体耐热钢。具有优异的高温强度的铁素体耐热钢包含以下 ,0.05〜0.15%的C,0.10〜0.08%的Si,0.20〜1.5%的Mn,0.5〜1.5%的Cr,0.10〜1.15%的Mo,0.005〜0.30%的V,0.005〜 Nb,0.0002〜0.0050%的B,如果需要,0.005〜0.05%的Ti和0.4〜1.0%的W,单独或组合,并且具有不大于15%的共析共析铁素体的结构, 金属结构面积比的术语,以及贝氏体的平衡。 本发明还提供一种具有优异的高温强度的铁素体系耐热钢的制造方法,其特征在于,将组成在950〜1010℃的温度范围内进行回火,同时保持T.P。 值在18.50×103〜19.90×103的范围内。

    Heat-resistant, austenitic cast steel and exhaust equipment member made
thereof
    74.
    发明授权
    Heat-resistant, austenitic cast steel and exhaust equipment member made thereof 失效
    耐热奥氏体铸钢及其制造的排气设备构件

    公开(公告)号:US5501835A

    公开(公告)日:1996-03-26

    申请号:US350145

    申请日:1994-11-29

    IPC分类号: C22C38/48

    CPC分类号: C22C38/48

    摘要: Exhaust equipment members are made of a heat-resistant, austenitic cast steel with excellent castability and machinability having a composition consisting essentially, by weight, of 0.2-1% of C, 2% or less of Si, 2% or less of Mn, 8-20% of Ni, 15-30% of Cr, 0.5-6% of Nb, 1-6% of W, 0.01-0.3% of N, optionally 0.01-0.5% of S, C--Nb/8 being 0.05-0.6% and the balance being Fe and inevitable impurities.

    摘要翻译: 排气设备构件由具有优异的铸造性和可切削性的耐热奥氏体铸钢制成,其组成基本上由C组成为0.2-1%,Si为2%以下,Mn为2%以下, 8-20%的Ni,15-30%的Cr,0.5-6%的Nb,1-6%的W,0.01-0.3%的N,任选的0.01-0.5%的S,C-Nb / 8是0.05 -0.6%,余量为Fe和不可避免的杂质。

    Process for preparing rubber-modified styrene resins
    75.
    发明授权
    Process for preparing rubber-modified styrene resins 失效
    制备橡胶改性苯乙烯树脂的方法

    公开(公告)号:US5349012A

    公开(公告)日:1994-09-20

    申请号:US82506

    申请日:1993-06-25

    摘要: Rubber-modified styrene resins with excellent impact resistance are prepared by formulating a feed from a styrene-based monomer, or a mixture thereof with comonomers and high-viscosity rubber, an organic peroxide, and, if necessary, all inert organic solvent, preheating and continuously supplying the feed to one end of a plug flow type reactor equipped with an agitator, performing the preliminary polymerization to a conversion sufficiently high for the transformation of the rubber in the feed into particles while controlling the weight average particle diameter of the rubber particles to 0.8 to 5 .mu.m, withdrawing the prepolymerized feed from the other end of the reactor, and supplying it to a following plug flow type reactor for continuous enhancement of tile conversion.

    摘要翻译: 通过配制来自苯乙烯基单体或其与共聚单体和高粘度橡胶,有机过氧化物的混合物以及如果需要的话,将所有惰性有机溶剂预热和加热,制备具有优异耐冲击性的橡胶改性苯乙烯树脂 将进料连续地供给到装有搅拌器的活塞式流动反应器的一端,进行预聚合,以足够高的转化率将进料中的橡胶转化成颗粒,同时将橡胶颗粒的重均粒径控制在 从反应器的另一端取出预聚合的原料,并将其供给到用于连续地提高瓦片转化率的随后的活塞流式反应器中。

    Instrument for measuring film thickness
    76.
    发明授权
    Instrument for measuring film thickness 失效
    测量膜厚度的仪器

    公开(公告)号:US4715007A

    公开(公告)日:1987-12-22

    申请号:US698471

    申请日:1985-02-05

    CPC分类号: G01B7/105

    摘要: An instrument for measuring a thickness of a surface processing film on a metal includes a plurality of instruction executing keys, an enclosed recording apparatus, a terminal for connecting a probe to detect an electrical signal corresponding to the film thickness when the probe is pressed onto the metal, a circuit for converting the electrical signal obtained from the probe to a digital value indicative of the film thickness, and a circuit for arithmetically processing the digital value in accordance with instructions by the instruction executing keys. The results of the processing are outputted to the recording apparatus.

    摘要翻译: 用于测量金属上的表面处理膜的厚度的仪器包括多个指令执行键,封闭的记录装置,用于连接探针的端子,用于当探针被按压到探针上时检测对应于膜厚度的电信号 金属,用于将从探头获得的电信号转换为指示膜厚度的数字值的电路,以及用于根据指令执行键的指令对数字值进行算术处理的电路。 处理结果被输出到记录装置。

    Ferritic heat-resisting steel with an excellent toughness
    77.
    发明授权
    Ferritic heat-resisting steel with an excellent toughness 失效
    铁素体耐热钢具有优异的韧性

    公开(公告)号:US4405369A

    公开(公告)日:1983-09-20

    申请号:US288397

    申请日:1981-07-30

    CPC分类号: C22C38/22

    摘要: A ferritic heat-resisting steel with an excellent toughness comprises0.03 to 0.10% by weight of carbon,0.1 to 1.0% by weight of silicon,1.5% by weight or less of manganese,1.5% to 2.7% by weight of molybdenum,7.0% to 10.0% by weight of chromium,0.01 to 0.1% by weight of niobium,0.02 to 0.12% by weight of vanadium,0.01 to 0.10% by weight of alloying element consisting of at least one member selected from the group consisting of rare earth elements having atomic numbers 57 through 71 and yttrium, andthe balance consisting of iron and unavoidable impurities, in which steel the ratio of the sum of the numbers of niobium and vanadium atoms to the number of carbon atoms is in the range of from 0.35 to 0.80; and the quantity (Cr%/30+Mo%/10-C%) and the content in percent of said alloying element fall on or within an irregular pentagon indicated in FIG. 1, the irregular pentagon being defined by the following points of A, B, C, P and D,______________________________________ Coordinate ##STR1## and Y content) (%)(The Sum of REMAlloying element ______________________________________ A 0.28 0.10 B 0.28 0.01 C 0.52 0.01 P 0.57 0.055 D 0.52 0.10 ______________________________________

    摘要翻译: 具有优异韧性的铁素体耐热钢含有0.03〜0.10重量%的碳,0.1〜1.0重量%的硅,1.5重量%以下的锰,1.5〜2.7重量%的钼,7.0重量% 至10.0重量%的铬,0.01〜0.1重量%的铌,0.02〜0.12重量%的钒,0.01〜0.10重量%的合金元素,由选自稀土元素 原子序数57〜71和钇,余量由铁和不可避免的杂质组成,其中铌和钒原子数之和与碳原子数之比的比例在0.35至0.80的范围内 ; 并且所述合金元素的含量(Cr%/ 30 + Mo%/ 10-C%)和所述合金元素的含量落在图5所示的不规则五边形之上或之内。 1,不规则五边形由以下A点,B,C,P和D点所定义, - - 中和< IMAGE>和Y含量)(%)(REMAlloying元素总和-A 0.28 0.10 -B 0.28 0.01 - C 0.52 0.01 -P 0.57 0.055 -D 0.52 0.10 -

    Low temperature calcined porcelain and process for preparation thereof
    79.
    发明授权
    Low temperature calcined porcelain and process for preparation thereof 失效
    低温煅烧瓷及其制备方法

    公开(公告)号:US4160673A

    公开(公告)日:1979-07-10

    申请号:US865947

    申请日:1977-12-30

    CPC分类号: C04B33/24 C04B33/13 C04B33/32

    摘要: A low temperature calcined porcelain composed mainly of a vitreous substance and including aluminum oxide, a clay component, a binder and, if necessary, a coloring agent is disclosed. This porcelain is prepared according to a process comprising adding water to a mixture composed mainly of a vitreous substance and including alumina, silica or a naturally occurring composition of alumina and silica, a binder and, if necessary, a coloring agent, molding the mixture into an optional form by compression molding or by kneading molding, and calcining (heating and hardening) the molded article at a relatively low temperature.

    摘要翻译: 公开了一种主要由玻璃质物质组成并包括氧化铝,粘土组分,粘合剂和必要时的着色剂的低温煅烧瓷。 该瓷器根据包括向主要由玻璃质物质组成的混合物中加入水并包括氧化铝,二氧化硅或天然存在的氧化铝和二氧化硅组合物,粘合剂和必要时的着色剂的方法制备,将该混合物成型为 通过压缩成型或捏合成型的可选形式,并且在相对低的温度下煅烧(加热和硬化)模塑制品。

    Method of adjusting two concentric windings in electrical induction
devices
    80.
    发明授权
    Method of adjusting two concentric windings in electrical induction devices 失效
    调整电感器件两个同心绕组的方法

    公开(公告)号:US4010536A

    公开(公告)日:1977-03-08

    申请号:US625158

    申请日:1975-10-23

    IPC分类号: H01F27/28 H01F27/38 H01F41/00

    摘要: In an induction machine having power windings disposed coaxially about the iron core thereof, means for reducing an axial mechanical force produced in any given winding by the interaction of the radial components of leakage flux produced at a time of short-circuiting and an electric current flowing in the given winding at that time. The reducing means includes a plurality of loops mounted respectively at the ends of the given winding and adapted to link the radial components of leakage flux produced at the ends of the given winding at the short-circuiting to generate induced currents in said loops. These currents produce magnetic flux for cancelling the radial components of leakage flux, respectively. In order to equalize the quantities of the radial flux components having the given winding to each other to reduce the axial force, a pair of search coils are mounted at the ends of the given winding so as to link the radial flux components, respectively and then the windings are axially relatively moved till the difference between the electromotive forces induced in the search coils becomes zero.

    摘要翻译: 在具有围绕其铁芯同轴设置的功率绕组的感应电机中,用于通过在短路时产生的漏磁通的径向分量与流过电流的相互作用减小任何给定绕组中产生的轴向机械力的装置 在当时的给定的绕组。 减小装置包括分别安装在给定绕组的端部处的多个环,并且适于在短路时将给定绕组端部产生的漏磁通的径向分量连接,以在所述环路中产生感应电流。 这些电流分别产生用于抵消漏磁通径向分量的磁通量。 为了使具有给定绕组的径向通量分量的量相互相等以减小轴向力,一对搜索线圈安装在给定绕组的端部处以分别连接径向通量分量,然后 绕组轴向相对移动,直到搜索线圈中感应的电动势之间的差成为零。