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- The Influence of colophony addition on hot cracking tendency and tensile strcngth at roomtemperature of precoated phenolic resin sand is investigated. 研究了天然树脂(松香)对覆膜砂的常温抗拉强度、热开裂倾向等性能的影响。
- Application of Ester Cured Alkali Phenol Resin Sand in Large Steel Castings 酯硬化碱性酚醛树脂砂在大型铸钢件上的应用
- Research on High-Intensity of Modified Phenol Resin Sand Used for Casting 铸造用高强度改性酚醛树脂的研究
- Improvement of core-making technology was conducted by adopting basic phenolic resin sand for aluminum alloy air guide ring in the turbogenerator produced by Harbin Rlectric Machine Co. 介绍了我公司在应用碱性酚醛树脂砂工艺生产汽轮发电机铝合金铸件导风环的过程中,对制芯工艺进行的改进。
- The technical properties and various kinds of factors affecting alkaline phenolic resin sand areanalyzed in this paper, The production tests to abtain good quality casting were conducted. 试验分析了酯硬化碱性酚醛树脂砂的工艺性能及各种因素的影响,生产浇注出优质铸件。
- phenol resin sand 酚醛树脂砂
- Properties of modified phenol resin, precoated sand preparation and property test have been narrated. 摘要叙述了改性酚醛树脂的性能、及膜砂制备配方及其性能测定。
- Study on Measures to Strengthen-Toughen Precoated Phenolic Resin Sand 酚醛树脂覆膜砂强韧化措施
- Compared with that of furane resin bonded sand,the feasibility of phenol resin bonded sand in forming a uniform coating layer in the inside mould surface is studied as well. 本文分析研究了砂在铸型中的成型条件及光洁内表面的形成机理,并对比研究了覆膜和呋喃自硬砂在铸型内表面形成均匀覆砂层的可行性。
- A new kind of polyacrylate resin sand for warmbox process was studied. 研究了以聚丙烯酸酯树脂为粘结剂,温芯盒固化的树脂砂制芯新工艺;
- Phenol resin was modified by choosing cashew nut shell oil,polysulphone as modifier and adding other assistant. 本文介绍用腰果壳油与苯酚、甲醛反应,在复合催化剂存在下,用一步法制得改性酚醛树脂。
- The structure and curing of the modified phenol resin were investigated by means of IR spectra and DSC methods. 利用红外光谱、差示扫描量热法分析技术对改性树脂的结构及固化反应过程进行了研究。
- A phenolic resin was blended with PBT. 研究了加入聚对苯二甲酸丁二醇酯(PBT)对酚醛塑料的增韧改性。
- The thermorheologic properties of some sorts of thermoplastic phenol resin were introduced. 介绍了几种热塑性酚醛树脂的热态流变特性。
- The reason causing nodularization degeneration in surface layer of furan resin sand nodular iron castings was analyzed. 对呋喃树脂砂球墨铸铁件表层球化衰退原因进行了分析。
- Copper approach gradually enriched the emergence of lost wax casting, resin sand casting, foundry casting. 铜铸方法逐渐丰富,出现了失蜡法铸造,树脂砂铸造,翻砂铸造。
- The rheological behaviors and curing properties of 213# phenol resin were studied using a rheometer and a differential scanning calorimeter. 利用流变仪和热分析仪对213%23酚醛树脂的流变行为和固化反应进行了研究。
- This product is designed for used resin sand with the functions of crushing, screening and demolding. 该系列产品主要用于树脂砂旧砂的再生.;它集破碎、筛分、脱膜多功能于一体。
- The condensation mechanism of resin is ana-lyzed and the technological properties of resin sand is determined. 探讨了该树脂砂的缩合机理,并测定了树脂砂的各项性能。
- Based on physicochemical test of resin film and analysis of resin sand properties, the CO2 gas-hardened mechanism of PANa resin sand was discussed. 通过对树脂膜的理化分析和对树脂砂性能试验,探讨了聚丙烯酸钠树脂砂CO2硬化机理。