Influencing hardness and wear during the dynamic tempered microinjection molding process by considering isothermal holding time
Influencing hardness and wear during the dynamic tempered microinjection molding process by considering isothermal holding time
复制标题
通过考虑等温保持时间影响动态回火微注射成型过程中的硬度和磨损
DOI:
10.1002/pen.24394
复制
发表时间:
2017
影响因子:
3.2
通讯作者:
Dietmar
中科院分区:
文献类型:
--
作者:
Fischer;Christopher;Seefried;Andreas;Benoit;Göken;Mathias;Drummer;Dietmar
For semicrystalline thermoplastic parts it is well known that increasing isothermal holding temperature can affect inner component properties, respectively, crystalline structure (e.g., morphology, degree of crystallization, crystal modification, etc.) and, therefore, resulting global component properties such as hardness and wear. Nevertheless, in literature there is no explicit focus on the effect of isothermal holding time during dynamically tempered injection molding process. In this article, semicrystalline microcomponents have been injection molded by varying isothermal holding time within the material's crystallization temperature area. As materials, POM‐C, as a material with relatively high crystallization kinetic, and PA 12, as a material with medium crystallization kinetic, were used. To evaluate the effects on hardness and wear, nanoindentation measurements as well as pin‐on‐disc wear tests were performed. Results show that for fast crystallizing POM‐C an isothermal holding step has no significant influence on inner component and resulting global component properties. For slower crystallizing PA 12, however, the morphology and the degree of crystallization could be influenced and, as a result, hardness could be increased by 21% while wear could be reduced by 30%. POLYM. ENG. SCI., 57:121–128, 2017. © 2016 Society of Plastics Engineers
登录
查看更多内容
DOI:
--
发表时间:
2011
期刊:
影响因子:
--
作者:
G. Menges;E. Haberstroh;W. Michaeli;E. Schmachtenberg
通讯作者:
E. Schmachtenberg
影响因子:
3.2
作者:
I. Kolesov;D. Mileva;R. Androsch
通讯作者:
I. Kolesov;D. Mileva;R. Androsch
DOI:
--
发表时间:
1990
期刊:
影响因子:
--
作者:
F. Schwarzl
通讯作者:
F. Schwarzl
DOI:
--
发表时间:
2014
期刊:
影响因子:
--
作者:
Shaobing Liu;P. Fu;Minying Liu;Zhaopeng Li;Zhenghang Lv;Qingxiang Zhao
通讯作者:
Qingxiang Zhao
DOI:
--
发表时间:
1979
期刊:
影响因子:
--
作者:
K. Nitzsche
通讯作者:
K. Nitzsche