湿磨干烧预分解窑生产线的设计与试生产

渠江水泥厂建成一条1000t/d湿磨干烧二级旋风预分解窑生产线。本文对该生产线最初方案的确定及设计进行了介绍。还对该生产线在试生产中,所出现的各种问题和解决的方法作了系统地分析、总结。笔者参与了该生产线的设计、试生产全过程后,认为湿磨干烧工艺颇具生命力。     

球磨制备超细硅酸锆新工艺

概述了球磨机湿法制备超细硅酸锆的生产线,对该生产线球磨各项工艺参数的确定进行了详细的阐述。生产实践证明:该生产线工艺设计合理、设备性能优良、生产成本低。生产的超细硅酸锆达到了国内高档陶瓷釉料乳浊剂所要求的质量品级。     

球磨制备超细硅酸锆新工艺

概述了球磨机湿法制备超细硅酸锆的生产线，对该生产线球磨各项工艺参数的确定进行了详细的阐述。生产实践证明，该生产线工艺设计合理、设备性能优良、生产成本低，生产的超细硅酸锆达到了国内高档陶瓷釉料乳浊剂所要求的质量品级。     

300mm纤维（聚酯）帘线挤出法覆胶生产线

首先对300mm纤维（聚酯）帘线挤出法覆胶生产线的研制情况、基本组成和主要技术参数等进行了简要说明,其次对该生产线的技术性能以及突出优点进行了阐述,该生产线的成功研制,不仅为挤出成型家族增添了新成员,而且也为中国橡胶工业的技术进步注入了新的血液。     

我国首条A仿英C型陶瓷盘类成型生产线在九江建成

我国首条陶瓷盘类成型干燥生产线在江西九江船舶工业公司建成,最近通过了部级技术鉴定。该生产线是由该公司在消化吸收英国C型生产线基础上建成的。生产线设计     

微机监测控制系统在德国FDY生产线卷绕设备上的应用

介绍了黑龙江涤纶厂在从德国引进的FDY生产线卷绕设备上加装自行研制的微机监测控制系统的经验。该系统设计思想先进、技术性能良好、设备运行可靠,改善和增加了该生产线的功能,实现了微机对FDY卷绕现场的现代化管理,可供国内拥有类似生产线的厂家参考。     

奥地利SML将建世界最大产能拉伸薄膜生产线

<正>据悉,奥地利SML兰精机械有限公司的Master Cast生产线的产能高于市场上任何一款拉伸薄膜生产线,此拉伸薄膜生产线提供了6 m可用的薄膜宽度,每小时的产能输出在4 500 kg左右。由于该生产线的宽泛的尺寸,该生产线可生产厚的拉伸薄膜、托盘包装薄膜产品。该公司的相关人员表示:Master Cast生产线采用了     

全钢巨型工程子午线轮胎生产线成套专用设备通过科技成果鉴定

日前,中国石油和化学工业协会在天津主持召开了“全钢巨型工程子午线轮胎生产线成套专用设备”科技成果鉴定会。鉴定委员会由国内轮胎行业的专家组成,一致同意该项目通过科技成果鉴定,并对该项目给予高度评价。近两年,天津赛象科技股份有限公司根据国内外橡机发展的趋势和子午线轮胎市场的需求,结合全钢工程子午线轮胎工艺特点和使用性能要求,对“全钢巨型工程子午线轮胎生产线成套专用设备”进行了创新结构设计和自动控制系统的研制开发和生产。该生产线成套专用设备由天津赛象公司独家生产。包括:“工程子午线轮胎六角形钢丝缠绕生产线”…     

湿磨干烧预分解窑生产互的设计与试生产

渠江水泥厂建一条１０００ｔ／ｄ湿磨干烧二级风预分解窑生产线。本文对该生产线最初方案的确定及设计进行了介绍，还对该生产线生产中，所出现的各种问题和解决 系统地分析，总结，笔者参与该生产互的设计、生产全过程后，认为湿磨干烧工艺颇具生命力。     

亚洲水泥公司花莲水泥厂3000t／dSP窑带余热发电生产线简介

本文作者张才雄先生是台湾亚洲水泥公司的总经理,亦是该公司花莲水泥厂~#窑带余热发电生产线的总规划。文章对该生产线的工艺配置及运行实绩作了介绍,并对水泥窑余热发电技术进行了讨论。本刊将对来稿分两次刊发,本期刊发该生产线的简介,1997年第1期刊发张才雄先生对余热发电技术的见解,供读者参考。文中有关专业述语已按内地习惯编辑,特此说明。     

Insect antifeedant properties of anthranoids from the genusVismia

Vismiones and ferruginins, representatives of a new class of lypophilic anthranoids from the genusVismia were found to inhibit feeding in larvae of species ofSpodoptera, Heliothis, and inLocusta migratoria.     

Direct observation of freeze-thaw instability of latex coatings via high pressure freezing and cryogenic SEM

Despite its industrial importance, the subject of freeze-thaw (F/T) stability of latex coatings has not been studied extensively. There is also a lack of fundamental understanding about the process and the mechanisms through which a coating becomes destabilized. High pressure (2100 bar) freezing fixes the state of water-suspended particles of polymer binder and inorganic pigments without the growth of ice crystals during freezing that produce artifacts in direct imaging scanning electron microscopy (SEM) of fracture surfaces of frozen coatings. We show that by incorporating copolymerizable functional monomers, it is possible to achieve F/T stability in polymer latexes and in low-VOC paints, as judged by the microstructures revealed by the cryogenic SEM technique. Particle coalescence as well as pigment segregation in F/T unstable systems are visualized. In order to achieve F/T stability in paints, latex particles must not flocculate and should provide protection to inorganic pigment and extender particles. Because of the unique capabilities of the cryogenic SEM, we are able to separate the effects of freezing and thawing, and study the influence of the rate of freezing and thawing on F/T stability. Destabilization can be caused by either freezing or thawing. A slow freezing process is more detrimental to F/T stability than a fast freezing process; the latter actually preserves suspension stability during freezing. Presented at the 82nd Annual Meeting of the Federation of Societies for Coatings Technology, October 27–29, 2004 in Chicago, IL. Tied for first place in The John A. Gordon Best Paper Competition.     

Ethanol and (−)-α-Pinene: Attractant Kairomones for Bark and Ambrosia Beetles in the Southeastern US

In 2002–2004, we examined the flight responses of 49 species of native and exotic bark and ambrosia beetles (Coleoptera: Scolytidae and Platypodidae) to traps baited with ethanol and/or (−)-α-pinene in the southeastern US. Eight field trials were conducted in mature pine stands in Alabama, Florida, Georgia, North Carolina, and South Carolina. Funnel traps baited with ethanol lures (release rate, about 0.6 g/day at 25–28°C) were attractive to ten species of ambrosia beetles (Ambrosiodmus tachygraphus, Anisandrus sayi, Dryoxylon onoharaensum, Monarthrum mali, Xyleborinus saxesenii, Xyleborus affinis, Xyleborus ferrugineus, Xylosandrus compactus, Xylosandrus crassiusculus, and Xylosandrus germanus) and two species of bark beetles (Cryptocarenus heveae and Hypothenemus sp.). Traps baited with (−)-α-pinene lures (release rate, 2–6 g/day at 25–28°C) were attractive to five bark beetle species (Dendroctonus terebrans, Hylastes porculus, Hylastes salebrosus, Hylastes tenuis, and Ips grandicollis) and one platypodid ambrosia beetle species (Myoplatypus flavicornis). Ethanol enhanced responses of some species (Xyleborus pubescens, H. porculus, H. salebrosus, H. tenuis, and Pityophthorus cariniceps) to traps baited with (−)-α-pinene in some locations. (−)-α-Pinene interrupted the response of some ambrosia beetle species to traps baited with ethanol, but only the response of D. onoharaensum was interrupted consistently at most locations. Of 23 species of ambrosia beetles captured in our field trials, nine were exotic and accounted for 70–97% of total catches of ambrosia beetles. Our results provide support for the continued use of separate traps baited with ethanol alone and ethanol with (−)-α-pinene to detect and monitor common bark and ambrosia beetles from the southeastern region of the US.     

Methyl 2,4,6-decatrienoates Attract Stink Bugs and Tachinid Parasitoids

Halyomorpha halys (Stål) (Pentatomidae), called the brown marmorated stink bug (BMSB), is a newly invasive species in the eastern USA that is rapidly spreading from the original point of establishment in Allentown, PA. In its native range, the BMSB is reportedly attracted to methyl (E,E,Z)-2,4,6-decatrienoate, the male-produced pheromone of another pentatomid common in eastern Asia, Plautia stali Scott. In North America, Thyanta spp. are the only pentatomids known to produce methyl 2,4,6-decatrienoate [the (E,Z,Z)-isomer] as part of their pheromones. Methyl 2,4,6-decatrienoates were field-tested in Maryland to monitor the spread of the BMSB and to explore the possibility that Thyanta spp. are an alternate host for parasitic tachinid flies that use stink bug pheromones as host-finding kairomones. Here we report the first captures of adult and nymph BMSBs in traps baited with methyl (E,E,Z)-2,4,6-decatrienoate in central Maryland and present data verifying that the tachinid, Euclytia flava (Townsend), exploits methyl (E,Z,Z)-2,4,6-decatrienoate as a kairomone. We also report the unexpected finding that various isomers of methyl 2,4,6-decatrienoate attract Acrosternum hilare (Say), although this bug apparently does not produce methyl decatrienoates. Other stink bugs and tachinids native to North America were also attracted to methyl 2,4,6-decatrienoates. These data indicate there are Heteroptera in North America in addition to Thyanta spp. that probably use methyl 2,4,6-decatrienoates as pheromones. The evidence that some pentatomids exploit the pheromones of other true bugs as kairomones to find food or to congregate as a passive defense against tachinid parasitism is discussed.     

2007～2008年世界塑料工业进展

收集了2007年7月～2008年6月世界塑料工业的相关资料,介绍了2007～2008年国外塑料工业的发展情况,提供了世界塑料产量、消费量及全球各类树脂的需求量及产能情况.按通用热塑性树脂(聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂)、工程塑料(尼龙、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚)、特种工程塑料(聚苯·硫醚、液晶聚合物、聚醚醚酮)、通用热固性树脂(酚醛、聚氨酯、不饱和聚酯树脂、环氧树脂)不同品种的顺序,对树脂的产量、消费量、供需状况及合成工艺、产品应用开发、树脂品种的延伸及应用的进一步扩展等技术作了详细介绍.     

2005～2006年国外塑料工业进展

收集了2005年7月～2006年6月国外塑料工业的相关资料,介绍了2005—2006年国外塑料工业的发展情况。提供了世界塑料产量、消费量及全球各类树脂生产量以及各国塑料制品的进出口情况。作为对比,介绍了中国塑料的生产情况。按通用热塑性树脂（聚乙烯、聚丙烯、聚苯乙烯、聚氯乙烯、ABS树脂）、工程塑料（聚酰胺、聚碳酸酯、聚甲醛、热塑性聚酯、聚苯醚）、通用热固性树脂（酚醛、聚氨酯、不饱和树脂、环氧树脂）、特种工程塑料（聚苯硫醚、液晶聚合物、聚醚醚酮）的品种顺序,对树脂的产量、消费量、供需状况及合成工艺、产品开发、树脂品种的延伸及应用的扩展作了详细的介绍。