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高压注浆和传统立浇注浆成形相比以其占地少、作业环境适宜、效率高、劳动强度低、操作简便、制品质量优良等优势而备受青睐。笔者从高压注浆原理以及设备管理、模具管理、原料管理、程序设置、干燥控制、环境控制等方面综合论述了高压注浆工艺控制管理,其多方面的密切协作是达到高压注浆预期目标的关键所在。目前高压注浆已作为一项成熟的生产工艺在国内大量应用普及。 相似文献
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"卫生陶瓷高压注浆成形工艺与控制技术探索"是针对国内卫生陶瓷产品采用传统石膏模具注浆成形方法存在成形时间长、效率低、空间利用率差,且需要配套大量人工、成本高等行业共性问题,通过研究采用带旋转框辅助装置的坐便器高压注浆成形技术,实现主坯体注浆的机械自动辅助高压快速成形,以及无机复合添加剂在坯体注浆的辅助作用等成形控制技术,配套带旋转辅助装置的高压注浆成形分体坐便器连续式生产设备,实现了高压注浆一次成形数量多、用工少、半成品率高、节能减排、提高生产效率和节约占地面积的高效立式高压成形产业化生产的技术创新。 相似文献
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通过高压注浆成形理论、工艺、机械结构等各方面的分析,对高压注浆机输浆、高压注浆、清洗、真空等系统做了认真细致的研究,设计出合理的、能保证产品品质注浆机气液系统。实现了设备的自动化,改善了工作环境。 相似文献
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笔者通过卫生陶瓷柜盆高压注浆成形机,对超大、超薄柜盆的注浆成形工艺及模型结构进行研究,借鉴国外同类产品技术,每套模具可独立旋转、单独设定工艺参数,在实现柜盆高压注浆成形生产的同时,满足不同型号产品的混载生产。柜盆高压注浆成形机电气控制系统以西门子可编程控制器1500系列PLC为核心,人机界面采用西门子触摸屏设计,现场控制采用集成模块和分布式I/O构建设备网络,基于Profinet总线协议实现现场设备与主控单元之间数字通信,实现系统自动控制、自动注浆、自动成形、自动翻转,达到柜盆坯体制造自动化生产的目的。 相似文献
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目前,注浆成形是卫生陶瓷成形的唯一方法。在探讨高压注浆成形的机理及产生背景,提出了高压注浆成形的基本定义,分析了高压注浆与普通石膏模注浆两者之间在机理和工艺上的异同。 相似文献
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分析了高压注浆的加压原理;高压注浆成形工艺对模型和泥浆的要求;高压注浆用石膏模型的加工过程以及镁质强化瓷泥浆的制备工艺. 相似文献
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Silicon carbide test bars were made by a simple wet-processing technique. The pressure casting method used the same equipment as conventional dry-pressing, but with a modified die. This casting technique was employed in order to produce test bars with improved strength and smaller fracture flaws than produced by dry-pressing. This was accomplished by eliminating pore clusters which were present in dry-pressed specimens and identified as a common source of failure in SiC MOR test bars. 相似文献
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以莫来石—刚玉质瓷为材质,采用多熟料配方和热压铸成型方法制备SHF陶瓷衬垫。配方合理,工艺可靠,成本低廉。产品具有优良的机电性能和化学性能,经地面试验及最后正式发射飞行证明,该陶瓷衬垫完全符合卫星上火工装制的要求。 相似文献
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介绍了电磁加热的工作原理、特点及在聚氨酯浇注设备上的应用,比较了电磁直接加热、电磁加热导热油和电热管加热导热油3种加热方法在聚氨酯浇注设备的能耗。实践表明,采用电磁加热导热油比电热管加热能耗降低约42%,而采用电磁直接加热方法比电热管加热方法能耗降低64%左右。 相似文献
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Steel-making and continuous/ingot casting are the key processes of modern iron and steel enterprises. Bilevel programming problems (BLPPs) are the optimization problemswith hierarchical structure. In steel-making production, the plan is not only decided by the steel-making scheduling, but also by the transportation equipment. This paper proposes a genetic algorithmto solve continuous and ingot casting scheduling problems. Based on the characteristics of the problems involved, a genetic algorithm is proposed for solving the bilevel programming problem in steel-making production. Furthermore, based on the simplex method, a new crossover operator is designed to improve the efficiency of the genetic algorithm. Finally, the convergence is analyzed. Using actual data the validity of the proposed algorithm is proved and the application results in the steel plant are analyzed. 相似文献
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V. M. Strelets N. V. Pitak A. I. Kulik M. S. Logachev 《Refractories and Industrial Ceramics》1963,4(3-4):177-179
Conclusions The Chasov-yar Refractories Combine has introduced a technology developed by UNIIO for making zircon nozzles for continuous steel casting equipment. Zircon nozzles possess a high erosion resistance and give a more stable casting for killed and unkilled steels compared with other types of nozzle. Tightening of the nozzles when pouring killed steel depends on a number of factors (amount of reducing agent, casting temperature, chemical composition of the steel, refractory, etc.) and requires further study.T. M. Vysotskaya-Kvitko took part in the work. 相似文献