作业帮英语翻译
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/17 04:50:42
英语翻译
英语翻译
英语翻译
foaming techniques / foaming technology
以下这篇文章的摘要有中英对照,可查照.
本篇文章论述了一种新型的发泡工艺.该工艺采用一个可加压的模具.它可以消除HFC-134a发泡过程中产生的泡沫空洞.这种技术可降低导热系数7%左右.泡沫的流动性也得到大幅度的改善,恰填量可降低10%左右.这主要是因为留在泡孔内的HFC-134a增加了.测试表明,留在最终泡孔内的HFC-134a增加了20%.实验结果同时表明,采用HFC-245fa或异丁烷发泡时,也可得出类似的结果.
This paper describes a processing technique that provided improved foam properties when compared to standard foaming techniques.The process innovation involved the use of a pressurized foam mold.This technique eliminated the blowholes from foam blown with HFC-134a.When using polyol blends that have been optimized for HFC-134a,the improvement in foam quality resulted in k-factor improvements of about 7%,or 0.01 BTU-in/hr-°F-ft².Minimum fill weights showed reductions of 10%.These improvements are due to the increased retention of the HFC-134a.Measurements confirmed a 20% increase in the amount of HFC-134a that remained in the final foam.Similar improvements were seen with HFC-245fa,as well as isobutane systems.
sparkle technic