黄原胶对消失模铸造涂料性能的影响

为提高消失模铸造水基涂料的质量,探讨了黄原胶作为微量添加剂对涂料性能的影响.试验研究表明,铸造涂料中加入适量的黄原胶可提高悬浮性、显著增大涂料粘度和涂挂性、改善涂料的流变行为.黄原胶还可显著提高涂层的强度,但使涂层透气性略有降低.鉴于黄原胶的优异性能,可望在消失模铸造水基涂料中获得应用.     

消失铸造用涂料的研制及应用

针对消失模铸造涂料特点;选择了合适的原材料配比试验,并通过性能检测,找出了一种适于铸造生产使用的涂料配比。     

有机膨润土及其在醇基涂料中的应用

简要介绍了醇基铸造涂料用有机膨润土制备方法,比较了有机粘土及无机矿物凝胶两类悬浮剂在醇基铸造涂料中应用性能,推荐了有机膨润土在醇基铸造涂料中应用的分散方法。     

消失模铸造涂料高温性能测试仪的研制

针对消失模铸造涂料的高温行为,提出了消失模铸造涂料高温性能的测试方法,研制出院了消失模铸造涂料高温性能测试仪。用该仪器测定了消失模铸造涂料的高温透气性、高温强度、EPS热解产物排出涂层的过程。试验结果表明：该仪器自动化程度高、操作简单,具有较高的可靠性和灵敏度。     

铸造涂料生产过程与检测指标标准化探索

基于对铸造涂料性质和使用范围的分析、对生产过程自动化控制和工艺流程的试验,以及性能指标的不确定度分析,提出了企业运行、生产过程控制和检测指标三方面的标准化建设设想。提出的铸造涂料的标准化建设将会更好地推进铸造涂料性能和过程控制工作的开展。     

凹凸棒粘土在铸造涂料中的应用

本文介绍了凹凸棒粘土矿物的特性,对凹凸棒土在醇基涂料中的应用进行了研究,试验结果表明,凹凸棒土能提高铸造醇基涂料悬浮性.     

消失模铸造涂料透气性研究状况的评述

分析了消失模铸造涂料透气性的重要性,评述了消失模铸造涂料透气性测试方法,总结分析了影响消失模铸造涂料透气性的因素,最后提出了消失模铸造涂料透气性的研究方向。     

砂型铸造涂料研究与应用的几个新进展

介绍了砂型铸钢用烧结剥离型防气孔和防增碳涂料、新型浅色烧结剥离型铸铁涂料、粘土湿型砂铸造醇基喷涂涂料、代替锆英粉涂料生产中大型碳钢和合金钢铸件的铬铁矿粉涂料、防止铸件脉纹缺陷的激冷涂料和绝热涂料、高压无气喷涂机等的性能特点及应用实例,简要探讨了国内砂型铸造涂料领域的发展方向.     

消失模铸造凸轮轴涂料的研制与应用

在消失模铸造中，涂料是关键的基础技术之一，针对凸轮轴生产的需要，研制了一种消失模铸造涂料，该涂料具有较高的强度和透气性，生产应用表明，使用该涂料可获得满意的铸件表面质量和尺寸精度。     

铸造涂料在大型汽轮机铸件中的应用

介绍了几种适用于汽轮机铸件的铸造涂料及其主要原材料,并研究了铸造涂料的性能和使用工艺。通过采用醇基涂料和水基涂料配合使用的涂刷工艺,有效地提高汽轮机铸件的表面质量。     

V法铸造涂料在耐磨铸件上的应用

针对V法铸造工艺的特殊性,分析了V法铸造涂料快干性、粘附性、致密性、透气性和涂挂性的影响因素,介绍了涂料性能的测试方法.将研制的V法铸造涂料用于高锰钢铸件,试用结果表明,涂料具有较快的干燥速度、与薄膜较好的粘附性、合理的透气性和致密性及良好的涂挂性,可满足V法铸造耐磨铸件的工艺要求,有效提高耐磨铸件的质量.     

锂基膨润土的制备及其在铸造涂料中的应用

概述了锂基膨润土的制备过程。通过X射线衍射、差热分析及热失重分析,对钙基膨润土和锂基膨润土的矿物结构和失水特征进行了分析,并测试了膨润土的悬浮度;同时介绍了采用锂基膨润土作悬浮剂所制铸造涂料的配制工艺、性能和使用效果。结果表明,制备的锂基膨润土在醇溶剂中悬浮性良好,可缩短铸造涂料的生产周期,并降低生产成本。     

New sol-gel refractory coatings on chemically-bonded sand cores for foundry applications to improve casting surface quality

Foundry refractory coatings protect bonded sand cores and moulds from producing defective castings during the casting process by providing a barrier between the core and the liquid metal. In this study, new sol-gel refractory coating on phenolic urethane cold box (PUCB) core was examined. The coating density, viscosity, moisture content and wet and dry weight of the coating were evaluated on cores that had been coated at three different dip-coating times. The coating coverage, surface appearance and depth of penetration into the cores were examined with a Stereomicroscope. Gray iron castings were produced with sol-gel coated and uncoated cores and the results were related to the coating properties. The casting results were also compared with castings made with cores coated with commercial alcohol-based and water-based foundry coatings. The analyses show that castings produced with sol-gel coated cores have better surface quality than those from uncoated cores and comparable surface quality with the commercial coatings. Therefore, the new sol-gel coating has a potential application in the foundry industry for improving the surface finish of castings thereby reducing the cost of fettling in the foundry industry since the raw materials and technology are easily affordable.     

意大利Corefon涂料在中国的应用

分析意大利corefon涂料的特性,研究在不同铸件应用中的典型案例。结果表明,corefon涂料可以提升汽车发动机缸体缸盖内腔清洁度、解决工程液压阀体内腔油道粘砂烧结问题、提高增压器零部件涡轮涡壳气道光洁度。铁型覆膜砂外型喷涂corefon涂料后,浇铸的铸件表面光滑,无粘砂、无烧结,不需要人工打磨和特别抛丸处理。充分体现了corefon涂料在性能上的优越性,可以解决铸造厂铸件内腔粘砂、烧结、表面粗糙的问题。     

铸造涂料性能检测不确定度分析

介绍了铸造涂料波美度、密度和悬浮性的检测方法,对涂料性能检测的不确定度进行了计算。分析结果表明,波美度指标的不确定度来源于重复检测误差和波美计刻度误差,密度指标的主要不确定度来源于量筒刻度误差,而悬浮性指标的主要不确定度来源于检测数据的重复性误差。密度和悬浮性适合作为涂料产品的出厂和验收指标,波美度只适合作为生产或使用时的控制指标。     

Moisture diffusion coefficients determination of furan bonded sands and water based foundry coatings

Moisture content in furan bonded sand and water based coatings can be one of the main causes for gas related defects in large cast iron parts. Moisture diffusion coefficients for these materials are needed to precisely predict the possible moisture levels in foundry moulds. In this study, we first compare two different experimental methods that can be used to determine moisture diffusion coefficients. Then, we determine diffusion coefficients for water based coatings and for different types of furan binders and we investigate the effects of compaction, dust levels and temperature. Finally, we provide an example on how it is possible to apply this knowledge to estimate moisture variation in a sand mould during production.     

Vergleichende Versuche zwischen thixotropen 2-schichtigen und konventionellen 4-schichtigen Korrosionsschutz-Anstrichstoffen in einem Hütten- und Gießereibetrieb

Comparative tests with thixotropic two-coat and conventional four-coat anticorrosive paints in a smelting plant and foundry The protection of steel structures by two-coat thixotropic coatings has assumed increasing importance in practice. As there has been, so far, no precise experience about the durability of such coatings in the atmosphere of a smelting plant and foundry, extensive comparative tests have been carried out with two-coat thixotropic and conventional four-coat paint systems. The purpose of the investigations, viz. to collect experience on the broadest possible basis, has been achieved by adopting an elaborate testing arrangement.     

价值工程在铸造工艺改进中的应用

结合我国目前铸造企业的现状,提出了推广应用现代管理技术--价值工程是提高企业经济效益的捷径的观点.首先介绍了价值工程的基本概念,然后结合涂料配制工艺的改进论述了应用价值工程的具体方法.最后提出在铸造行业推广应用价值工程,提高铸造行业经济效益的建议.     

Jinan Shengquan Group Share-holding Co., LTD.

Established in 1979, Shengquan Group is an enterprise operating with modern management systems. Combining advanced chemical industrial technology with the specific needs of the foundry industry, Shengquan Group has the capacity to develop and produce all kinds of resins, refractory coatings,ceramic filters, auxiliary materials and phenolic adhesive, for the foundry industry.