YU HONGWEI (Total 4174 Patents Found)

The invention discloses a soft and weak wall rock tunnel advance reinforced support construction method. When a pipe roof advance support construction is carried out on one segment of the constructed tunnel, the construction method comprises the following steps: (1) support arch and guide pipe construction, wherein a p...
一种屈服强度≥550MPa的低温工程用钢,其组分及含量:C:0.04~0.18%、Si:0.15~0.50%、Mn:1.63~2.00%、P≤0.015%、S≤0.008%、Nb+Ti:0.05~0.12%、Mo+Cr:0.20~0.4%、Als:0.015~0.05%;生产步骤:冶炼并连铸成坯;对铸坯加热;采用TMCP分段轧制;冷却;矫直;待用...
The utility model discloses a multistage protection device that adaptation vertical shaft hoisting system container falls, including main jib, the container, drive mechanism, the manipulator, the driving spring, be equipped with the spacing hole of manipulator on the container lateral wall, the container top is equippe...
本实用新型涉及一种螺杆钻具用轴承,包括内套和套装于内套外部的外套,所述内套的外圆周面上和外套的内圆周面上分别设置有涂层;涂层通过涂镀工艺进行加工,加工工艺减低,成品率高,成本低,涂层具有良好的耐磨性和耐冲蚀性,使...
The invention discloses a continuous punching device. The continuous punching device comprises a movable die plate, an upper padding plate, a fixed plate, male die puncher pins, guide columns, positioning nails, a lower die plate, a lower padding plate, a fixed die plate, positioning holes, forming female dies and guid...
一种化合物氟硼酸钡和氟硼酸钡非线性光学晶体及制备方法和用途,化合物氟硼酸钡及其非线性光学晶体化学式均为Ba3B6O11F2,晶体属单斜晶系,空间群P2(1),晶胞参数为beta=101.351(4)deg.,分子量690.88。其粉末倍频效应达到KDP(KH2PO4)的3倍,化合...
Engineering steel with a drop hammer fracture fiber rate being more than 95% comprises the following components by weight: 0.04-0.07% of C, 0.10-0.30% of Si, 1.40-1.65% of Mn, 0.04-0.06% of Nb, 0.008-0.025% of Ti, 0.15-0.30% of Mo, 0.20-0.40% of Ni, not more than 0.012%% of P, and not more than 0.0015% of S; the produc...
The utility model relates to a cassava crushing device. The cassava crushing device comprises a motor, a device body, a coupling, a main shaft and a bearing, wherein the main shaft is fixedly provided with a flying disc; the flying disc is provided with a flying hammer sheet; three screens are fixed on the device body;...
L'invention concerne un milieu de culture spécialisé capable d'améliorer la production d'alginate par des souches bactériennes mucoïdes stables de Pseudomonas aeruginosa et des procédés de production et de purification d'alginate de qualité industrielle, commerciale et pharmaceutique par des s...
The utility model relates to a starch milk and dreg separating system for potatoes, particularly for cassava. The starch milk and dreg separating system comprises equipment including a raw material cleaning machine, a crushing machine, a dreg milk pool, a vertical sieve, a cleaning sieve, a press filter and the like. R...
本发明涉及一种锂铷钡铝硼氧氟和锂铷钡铝硼氧氟非线性光学晶体及制备方法和用途,锂铷钡铝硼氧氟的化学式为Rb3Ba3Li2Al4B6O20F,分子量1194.09,采用固相反应法制成,锂铷钡铝硼氧氟非线性光学晶体的化学式均为Rb3Ba3Li2Al4B6O20F,分子量905.82,...
The invention relates to an ursodeoxycholic acid capsule and a preparation method thereof and belongs to the technical field of pharmaceutical preparations. The ursodeoxycholic acid capsule comprises content and a capsule shell, wherein the content comprises ursodeoxycholic acid, hydroxypropyl methyl cellulose and micr...
The utility model relates to an acceleration transducer, specifically discloses a smart piezoelectric type acceleration transducer with ultra-low phase difference. The smart piezoelectric type acceleration transducer comprises a micro charge amplifier, a Q/V conversion circuit, a first one-way isolating diode, a micro ...
本发明涉及一种化合物一氟三硼酸五钡和一氟三硼酸五钡非线性光学晶体及制备方法和用途,该化合物化学式为Ba5(BO3)3F,分子量882.13,采用固相反应法合成化合物;所述一种一氟三硼酸五钡非线性光学晶体,该晶体的化学式为Ba5(BO3)3F,分子量...
本发明公开了一种高压多相流体密度测量装置及其测量计算方法,测量装置包括内模型和外模型,所述内模型设置在外模型内,所述内模型包括:分析筒,其上、下部分别设有顶活塞和底活塞,顶活塞内设有用于放置电磁铁的磁铁孔,顶活塞...
本发明提供一种高含硫加压变换气湿法脱硫工艺,包括以下流程:变换气进入进口分离器,分离水后的变换气进入管道混合器,与脱硫液混合脱除变换气中部分硫化氢后进入1#脱硫塔,与脱硫液接触进一步脱除变换气中硫化氢,变换气进入2#脱...
The present invention relates to an inferior coker gas oil hydrotreatment method. The catalyst is prepared by successively loaded a protection agent, a demetallization agent, a desulfurization agent and a denitrification agent from top to bottom with a volume ratio of 0.1-10:0.5-20:0.5-20:5-60. The catalyst is in accor...
本实用新型公开了一种可控式高效率非隔离升压电源模块,包括光耦U1、输入正端串联一只P沟道的开关管Q1、开关管Q2、控制芯片IC1、储能电感L1,所述光耦U1的三极管的发射极与开关管Q1的栅极相连接,开关管Q1的漏极和光耦U1的三极管的集电极...
The invention relates to the field of high-voltage electromechanical control, in particular to a protection device for a high-voltage power switch. The protection device for the high-voltage power switch is characterized in that an anode VDD of a high-voltage power supply is grounded after being connected with the high...
本发明提供了鸭出血性卵巢炎灭活疫苗的血清学效力检验方法,该方法使用鸭出血性卵巢炎灭活疫苗免疫鸭,免疫2次,首免后2周进行二免,采集二免后3~5周的鸭血清进行ELISA抗体检测,非免疫组ELISA抗体阳性率为0%,免疫组ELISA抗体阳性率为不...
The invention provides a displacement experiment fluid control method and a displacement experiment device. The displacement experiment fluid control method comprises the steps that saturated fluid is poured into an inner model hole channel through an inlet connecting pipe communicated with an inner model of the displa...
本发明涉及一种劣质焦化蜡油加氢处理的方法,催化剂的级配装填按照由上至下依次为保护剂、脱金属剂、脱硫剂和脱氮剂,按体积比为0.1~10∶0.5~20∶0.5~20∶5~60;催化剂按粒度级配和活性级配;将镁铝尖晶石-大孔氧化铝载体经过有机硅...
The utility model discloses a naval vessel is with portable laser cladding robot, including the robot, be provided with the laser head at the manipulator tip of robot, be provided with in the fuselage bottom of robot and remove strutting arrangement, should remove strutting arrangement and include: the supporting seat,...
A specialized culture medium for the promotion of alginate production by stable mucoid Pseudomonas aeruginosa bacterial strains and methods for the production and purification of industrial, commercial, and pharmaceutical grade alginate from bacteriological sources are provided herein. Alginate produced using the med...
La présente invention concerne des compositions et des procédés permettant de détecter et de lutter contre la conversion mucoïde dans le Pseudomonas aeruginosa. La présente invention permet de détecter le passage d'un état mucoïde à un état non mucoïde du P. aeruginosa en mesurant l'expression du mu...
本实用新型公开了一种舰船用激光熔覆与精密加工一体化机器人作业头快换装置,该快换装置包括:固定安装在机器人的机械手端部的安装底板和固定于安装底板上的作业头夹持部件;作业头夹持部件包括弧形底座和弧形压盖,弧形底座的背...
一种碱木素氧化淀粉改性酚醛胶,由下列原料及其重量份配比而成:210-240份纯度为37%的工业用甲醛、140-160份熔化的工业苯酚、80-90份浓度为30%的NaOH溶液和300-315份碱木素氧化淀粉改性剂;本改性胶呈深棕色胶状液,25℃涂4杯粘度35-45S,密度1...
一种提高疫苗生产中鸡毒支原体增殖能力的方法,所述疫苗经种子制备、鸡毒支原体培养基配制、制苗菌液制备及灭活疫苗制备工序制成,改进后,加大了PPLO肉汤、猪血清和葡萄糖含量,去掉了MEM成份,调整后的培养基成份配比更科学、营养...
本实用新型公开了一种蓝宝石晶锭定向装置,包括基座,基座底部活动连接有支架,基座一侧设置有带有手轮Ⅰ的丝杠传动装置Ⅰ,所述丝杠传动装置Ⅰ通过齿轮Ⅰ与齿轮Ⅱ啮合连接,所述齿轮Ⅱ与基座上设置的工作台轴连接;所述基座另一...
The present invention provides an effect testing method for a duck hemorrhagic ovaritis inactivated vaccine. According to the method, a duck hemorrhagic ovaritis inactivated vaccine is adopted to vaccinate ducks twice, the second time vaccination is performed after the first time vaccination is performed two weeks, duc...
本发明涉及到一种等位移恒压控制方法和等位移恒压阀门,其中,所述阀门具有阀体,阀体的中空部形成阀杆通道,阀杆能移动地穿设于所述阀杆通道内,阀杆上设有两个能密封阀杆通道的密封装置,两密封装置之间形成一封闭区间,该封闭...
The utility model discloses a material receiving plate is used in electric capacity production, including rotating chassis and material receiving plate, chassis and material receiving plate swing joint rotate, chassis A disc -shaped rotates, be provided with the material receiving plate standing groove on the rotation ...
The invention provides an FSAA mutant with remarkably increased catalytic activity, a nucleotide sequence thereof, a recombinant expression vector containing a corresponding mutant gene and a genetically engineered bacterium. A chiral product with high optical purity can be prepared by aldol condensation reaction in wh...
本发明提供了一种可视化全封闭真实岩心模型的制造方法及岩心模型,该制造方法包括首先制造真实岩心薄片(12),再将上玻璃片(11)、真实岩心薄片(12)、下玻璃片(13)和载物垫板(14)放置在加热装置中加热至上玻璃片(11)和下玻...
一种含硅酸锂高强度耐水加气砖,由下列重量份的原料制成:煤矸石粉4-5、可再分散乳胶粉0.7-1、甲酸钙0.3-0.5、石膏7-9、粉煤灰50-60、加气铝粉6-7、水泥8-9、高炉灰4-6、生石灰9-11、改性煤灰7-8、硅粉6-8、硬脂酸0.6-1、硅酸锂0.8-1.2、水适量;本发...