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1)  furan resin technology
呋喃树脂工艺
1.
By improving equipment and arranging technical process properly, we enable specific products to strip within 3 minutes from normal 15~45 min by using furan resin technology.
通过实践,使特定产品使用呋喃树脂工艺的起模时间由常规的15~45min变成了3min,从而大大提高了生产效率,实现了大批量产品的机械化、自动化生产。
2)  furane resin
呋喃树脂
1.
A study of no-bake furane resin sand technological properties;
自硬呋喃树脂砂工艺性能研究
2.
Through the analysis of the causes of furane FRP internal lining of knock-out drum V209 and laboratory testing of several linings, the acid-resistant ceramic bricks lined with YJ furane resin daub was selected as the internal lining for the drum.
通过对V2 0 9罐“六布八油”呋喃玻璃钢内衬失效原因分析 ,和对几种内衬方案的实验室浸泡试验 ,最后选出用YJ呋喃树脂胶泥贴耐酸瓷砖作为V2 0 9罐内壁的防护
3.
Shell carbon black can be used to modify furane resin for significantly enhancing its electrostatic resistance and impact resistance,so that it is of greater suitability value.
采用谢尔炭黑改性呋喃树脂,能显著提高其抗静电、抗冲击性能,具有较大实用价值。
3)  furan resin
呋喃树脂
1.
Synthesis of furan resin with high strength and weak smell for foundry;
铸造用高强度低气味呋喃树脂合成工艺
2.
Study on novel furan resin with high bonding strength;
高粘结强度新型呋喃树脂的研制
3.
Mechanical properties and applications of furan resin concrete;
呋喃树脂混凝土的力学性能及其应用
4)  furan resin sand
呋喃树脂砂
1.
when producing ductile castings with furan resin sand, the C and S resulted from decomposition of resin and catalyst penetrated into molten iron and caused large quantities of fine flake and dot-shaped supercooling graphites in some areas of the casting which are appearing as dark color defects on the machined surfaces.
采用呋喃树脂砂型铸造球铁件时,由于树脂和硬化剂分解产生的C、S渗入铁液使铸件表层局部区域形成大量密集的细片状和点状过冷石墨,这些区域加工表面上呈灰暗色。
2.
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。
3.
The variaion pattern of solidification of furan resin sand with the addition of solidifying agents is inquired experimentally and the relationship of proper additive amount of solidifying agents to the temperatures of sand and environment.
通过试验探讨了呋喃树脂砂中固化剂随温度变化的规律 ,得出固化剂的加入量随砂温和环境温度变化的关系式 。
5)  new type furan resin
新呋喃树脂
6)  Phenol-furfural resin PFF
酚呋喃树脂
补充资料:呋喃树脂
      分子结构中含呋喃环的一类热固性树脂。在酸碱催化剂存在下,由糠醛、糠醇或其他起始原料,经缩聚反应制得。主要产品有糠醇树脂及改性糠醇树脂(糠醇-糠醛树脂、糠醇改性脲醛树脂、糠醇-甲醛树脂等)、 糠醛-丙酮树脂、糠醛-苯酚树脂等。树脂固化时收缩小,固化物为不溶不熔的黑色脆性固体,其优点为耐热和耐化学腐蚀性均优于酚醛树脂和环氧树脂。 糠醇树脂和糠醛-丙酮树脂耐酸(不包括氧化性酸)、碱、盐溶液和有机溶剂,在防化学腐蚀方面获得广泛应用。
  
  糠醇树脂是呋喃树脂最主要的品种,是糠醇在酸性催化剂存在下,于90~100℃缩聚至所需程度,用氢氧化钠溶液中和后,再经真空脱水制得。改变反应条件,可制得粘稠状液体或可熔脆性固体树脂。在中性条件下,树脂十分稳定,贮存期可达几年,遇强酸则迅速转化为不溶不熔的固体,因此树脂酸化后能室温固化。糠醇树脂和糠醇-甲醛树脂主要用于制造以石英、炭黑、石墨等作填料的耐化学腐蚀胶泥和可低压成型的石棉增强设备。糠醇改性的脲醛树脂是由甲醛和尿素先在碱性催化剂存在下制成二甲醇脲,用乙醇醚化后,再用糠醇进行醚交换而制得,可作胶粘剂和家具填缝胶。
  
  糠醛-丙酮树脂是由糠醛和丙酮在碱催化剂作用下,制成预缩聚物,使用时加入对甲苯磺酸等催化剂而交联固化,其耐热(可达300℃)和耐化学腐蚀性能优异。主要用于以石英等作填料的防腐蚀胶泥和制造以玻璃纤维、石棉纤维增强的防化学腐蚀设备。
  
  糠醛-苯酚树脂是用糠醛和苯酚为原料,在苯酚过量的条件下,用碱(除氨外)作催化剂,经缩聚而得。也是一种热塑性酚醛树脂。可作胶粘剂和流动性好的压塑粉。
  

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