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- gas cured resin sand 气硬树脂砂
- Birefringence of the cured resin was measured with a senarmont compensator. 用塞拿蒙补偿器测定固化树脂的双折射率。
- 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;
- Objective:The clinical effect of light cured resin in treating front interdental spaces was studied. 目的:观察光敏树脂修复前牙列稀疏的临床效果。
- Before that point the specific heat of uncured resin was linearly lessening to the value of cured resin, whi... 模拟的结果与实测值具有良好的一致性。
- 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。
- The oxidative decomposition of BPPDPS modified bismaleimide resin was studied.The cured resin shows good oxidation resistance with low hydrolysis rate. 本文分析了BPPDPS改性双马来酰亚胺树脂的热氧化性分解特性,固化树脂分解速率低,有优良的抗氧化性;
- 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。
- 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 progress of UV-curable acrylate polyurethane (PUA) was reviewed .The synthesis method of PUA,the photocuring mechanism and the performance of the cured resin were discussed. 综述了紫外光固化聚氨酯丙烯酸酯树脂的研究,讨论了其合成方法、固化机理以及性能。
- 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。
- AIM:To compare the clinical effects of glass iomer cement FX and light cure resin in restoring the dental wedge-shaped defects. 目的:比较FX玻璃离子水门汀(以下简称FX)与光固化复合树脂修复前磨牙楔形缺损的临床效果。
- 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。
- 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。
- Dissertate and extend the necessity of usiny the new technology and the new crafts of resin sand from quality cost and efficiency aspects. 从质量、成本、效率三方面论述推广、使用树脂砂新技术、新工艺的必要性。
- A new process using alkaline resin sand mould is introduced and the cause for the improvement of quality by this new process is discussed. 介绍了用碱性酚醛树脂自硬砂工艺代替呋喃树脂自硬砂工艺后消除缺陷、提高球铁曲轴品质的机理。
- Abstract Furan resin sand is poor in collapsibility when it is used for Al alloy casting,specially for some large、thin section castings. 呋喃树脂砂用于铝合金铸造时,特别是对于一些大型、薄壁铝合金铸件,型芯的溃散性较差。
- In the excess of cyanate functional groups,the main structures are triazine ring and oxazolidinone structures in the cured resin,and the polyether structure is of minor importance. 在氰酸脂适量或过量条件下 ;固化树脂主要是三嗪环和唑烷酮结构 ;聚醚结构很少.
- Authors introduces an example of applying no-bake furan resin sand technology to large-scale and high-efficient molding line. 介绍了一种把呋喃树脂自硬砂工艺应用于大批量、高效率造型线的实例。
- This paper outlines the basic principles,processes and equipments commonly used in V-process,green sand and resin sand moldings. 文章介绍了目前常用的真空V法造型、湿砂造型和树脂砂造型的基本原理、工艺过程以及所使用的设备,列举了它们的优缺点和经济的适用范围。