长钢一炼钢1^#,4^#小方坯连铸机高效化改造

主要介绍长钢一钢厂与武汉大西洋冶金工程技术有限公司合作，对小方坯连铸机进行高效化改造的情况，改造中采用了连续锥度结晶器、半板簧振动装置等，改造后效果显。     

长钢—炼钢1~#、4~#小方坯连铸机高效化改造

主要介绍长钢一钢厂与武汉大西洋冶金工程技术有限公司合作,对小方坯连铸机进行高效化改造的情况,改造中采用了连续锥度结晶器、半板簧振动装置等,改造后效果显著。     

南钢4^#连铸机的高效化改造

阐述了南京钢铁股份有限公司炼钢厂4^#连铸机的高效化改造原因，介绍了高效化改造的主要内容，改造采用了多锥度窄水缝结晶器、全板簧振动装置、高强度高密度冷却及连续矫直等技术，并取得了明显的效果。     

南钢4~#连铸机的高效化改造

阐述了南京钢铁股份有限公司炼钢厂4~#连铸机的高效化改造原因,介绍了高效化改造的主要内容,改造采用了多锥度窄水缝结晶器、全板簧振动装置、高强度高密度冷却及连续矫直等技术,并取得了明显的效果。     

济钢1#方坯连铸机的高效化改造

以济钢１＃连铸机高效化为例，分析总结板簧式振动装置，自动配水，氢氧焰切割机等在连铸机上的应用。     

圆坯连铸机的高效化改造与生产实践

通过开发和应用高拉速抛物线锥度结晶器，采用结晶器电磁搅拌和高精度板簧振动装置等工艺技术，对天津钢管公司Ф210-310mm圆坯连铸机二冷配水及拉矫机、冷床和计算机自动化系统进行了相应的改造，使连铸机拉速提高了30％，年产量由60万t提高到90万t，铸坯的综合合格率为99．66％。     

方坯连铸机高效化改造实践及其影响

介绍了新钢公司第三炼钢厂方坯连铸机高效化改造的基本情况。改造中采用了连续锥度结晶器、板簧导向振动装置、连续矫直拉矫机,自动火焰切割机等设备与技术措施。改造后,方坯连铸机主要技术经济指标和到了提高,并实现了转炉钢全连铸,消灭了普钢、低合金钢二火成材;消灭了二次化铁;初步实现了方坯热装热送;引发了新钢公司板坯机改造。     

R6m达涅利小方坯连铸机的改造

为调整产品结构,增强生产合金钢的能力,石横特殊钢厂将Ｒ６ｍ达涅利链式引锭杆三机三流小方坯连铸机改造为Ｒ８ｍ拉矫机两点矫直的连铸机,并将振动装置由凸轮杠杆式改为板簧式短臂四连杆振动机构,采用了二冷室活动导板和汽－水喷嘴冷却方式,改引锭杆存放形式为下藏式,从而适应了高效率生产高质量铸坯的要求。     

方坯连铸机振动装置优化改造

介绍了对方坯结晶器半板簧振动装置所进行的优化改造.改造后的振动装置运行平稳,在实际应用中取得了良好效果.     

宣钢新连铸机顺利投产

宣钢原有 5座转炉及 3台连铸机 ,转炉钢生产能力大于连铸机生产能力。新建的 4号、5号连铸机已陆续投产 ,每台连铸机设计年产能力为 16万 t。采用抛物线型高效结晶器、半板簧振动装置、二冷段密集高效率冷却等先进高效连铸技术。目前 ,两台连铸机平均日产已达 5 0 0 t以上 ,超过了设计能力宣钢新连铸机顺利投产@毛征     

Response of lymphoepithelial parotid cysts to antiretroviral treatment in HIV-infected adults

Authors have presented results of vibratory stimulation in 20 anejaculatory spinal cord injury men. In 17 of 20 patients who had not ejaculated since their injuries, application of a vibrator to the penis caused ejaculation. Three of them had retrograde ejaculation. All patients with upper thoracic lesions received nifedipin. Side effects of vibratory stimulation were not reported. Semen can be used for assisted reproductive techniques.     

Multiparameter analysis of dysphonia using the equipment Physiologia

The purpose of the multiparametric analysis of the vocal phenomenon is to evidence the instability of the signal in amplitude and in frequency, together with the aerodynamic phenomena related to the glottic air leakage. Statistical analysis has made it possible to establish a correlation between the data of the apparatus, as from 9 variables, and the clinical classification. The main diagnostic categories are relatively close, evidencing the various biomechanical anomalies of the laryngeal vibrator. A certain number of issues remain to be addressed: the physiopathology of the vibrator, the choice of the phonetic sample, and the different methods of instrumental analysis.     

振动给料机支撑方式的改造

文章结合包钢巴润矿业分公司生产实际和干选车间现场存在在的问题及振动给料机运行情况,对振动给料机的支撑方式进行了改造,使振动给料机能为干选机提供可控稳定的给矿。     

The action of perchlorate on malignant-hyperthermia-susceptible muscle

We developed two types of implantable hearing aids, a totally implantable hearing aid (TIHA) and a partially implantable hearing aid (PIHA) in 1983. In both types a piezoelectric ceramic bimorph was used as an ossicular vibrator which was coupled to the stapes to transmit sound signals to the inner ear efficiently. Due to technological immaturities, clinical application of the TIHA has not yet been realized. But the PIHA is available for clinical use at present. In the PIHA only the ossicular vibrator is implanted with inner link coil. The rest of components such as microphone, amplifier, battery, and outer link coil remain in their usual location behind the auricle. Since 1984, we have applied the PIHA to 37 patients with mixed deafness. Careful follow-up studies have been conducted on all of them to assess clinical and audiological results. We have confirmed that the device could function safely for more than 10 years affording natural quality of hearing without howling and wearing discomforts. Our studies suggest that the PIHA can be a choice of rehabilitation for mixed deafness due to middle ear diseases which cannot be rehabilitated satisfactorily by either surgical means or a conventional hearing aid. Functional principle of device, indications and surgical methods of implantation were described. Failures and delayed problems we experienced were also presented together with the preventive measures. We believe that an implantable hearing aid of this type will be an otologic breakthrough if substantial technological difficulties are cleared.     

VIBRATORY COMPACTING OF METAL POWDERS

Abstract

The vibratory compacting of copper powder has been studied using a mechanical vibrator. The major factors influencing the green density of the compacts were the amplitude and frequency of vibration, and the applied pressure. A minimum time of 10 sec on the vibrator was necessary to achieve the maximum density value. Other factors examined were the effects of vibration on blended powders with constituents of widely different densities, and the suitability of this method to compact various materials. Vibratory compacting produced compacts of improved uniformity and green density.     

烧结工程中几个典型控制问题的PLC程序编制方法

对烧结厂重油点火炉控制问题、电除尘振打时序控制问题进行了分析，并提出了解决这类问题的PLC程序编制方法。     

Characterization of human p33/41 (annexin IV), a Ca2+ dependent carbohydrate-binding protein with monoclonal anti-annexin IV antibodies, AS11 and AS17

A non-invasive method of assessing the status of the temporomandibular joint is presented. The method involves placing a computer-controlled vibrator against a lower incisor, and microphones over the temporal bones. The amplitude of the signal transmitted is shown to be a function of the input frequency, the position of the mandible and the loading on the joint.     

涟钢转炉小方坯连铸机的高效化改造

介绍我厂在结晶器、振动器、二冷及其冷床系统进行的高效化改造，以及达到转炉与连铸匹配、高效，改善铸坯质量的效果。     

气门弹簧及悬架弹簧用线材现状与发展方向

简述气门弹簧、悬架弹簧用线材使用现状,指出国内弹簧钢的不足及提高其强度的发展方向,对最先进的日本弹簧钢线材的生产工艺及实物质量进行了综述,为国内开发生产高质量弹簧钢线材提供参考。     

振动时效原理与机械式激振器锁相调速系统

本文介绍了振动时效（ＶＳＲ）技术原理和采用双闭环数字锁相调速系统，用于ＶＳＲ技术的机械式激振器直流电机调速单元，显著提高了在强烈振动状态下，具有谐振型负荷的直流电机的稳频精度，其精度在０．１Ｈｚ以上。