About this deal
The central hole diameter of the plate by the three routes: (a) DDT, undried parts, (b) DDT, dried parts, (c) DDL, undried parts, and (d) DDL, dried parts. 4.1.2 Periphery dimensional accuracies
cycles, in every cycle: −40 to 130°C, 10°C/h, the highest and lowest temperatures were maintained for 4 h, room temperature was maintained for 2 h. The tensile fractured surfaces of the samples treated by the three routes were coated with gold to prevent electrical charging. The surface morphological images of all samples were observed by using scanning electron microscopy (SEM; Sigma 300, Germany) at an acceleration voltage of 5.0 kV. 4 Results and discussion 4.1 Dimensional accuracies of the plate treated by the three routesEffect of flame retardant on properties of glass fibers reinforced polyamide 66. Eng Plast Application. 2002;10:9–11. Search in Google Scholar
The transverse and longitudinal peripheral dimensions of the plate treated by the three routes: (a) I, (b) II, and (c) III.
All metrics apply to room temperature unless otherwise stated. SI units used unless otherwise stated. Injection moulding of long glass fibers reinforced polyamide 66: processing conditions/microstructure/flexural properties relationship. Adv Polym Technol. 2005;24(2):114–31. 10.1002/adv.20035 Search in Google Scholar In this article, three different treatment routes were applied and analyzed after injection molding to study the roles of boiling water bath and re-drying in improving the dimensional accuracies and mechanical properties of a plate that was made of PA66-GF25 FR (RP) by performing size measurements, mechanical property tests, and micro-morphology comparisons. Some conclusions are presented here.
DHL Express is a division of the German logistics company Deutsche Post DHL providing international express mail services. Deutsche Post is the world's largest logistics company operating around the world. DHL is a world market leader in sea and air mail. Performing measurements using a micrometer showed that the dimensional accuracies were improved after the three treatment routes; however, there exist some nonnegligible differences between the accuracies obtained with the three routes. 4.1.1 Dimensional accuracy of the central hole Tecamid® 66 is a registered trademark of Ensinger; Murylon® A is a registered trademark of Murtfeldt; Ertalon® 66 SA is a registered trademark of Quadrant; Sustamid® 66 is a registered trademark of Röchling; Zellamid® 250 is a registered trademark of Zell-Metall;Flame retardant and dielectric properties of glass fibre reinforced nylon-66 filled with red phosphorous. Polym Degrad Stab. 2001;74(2):239–45. 10.1016/S0141-3910(01)00109-4 Search in Google Scholar This work was financially supported by the National Natural Science Foundation of China (51705295 and 51778351), The Shandong Provincial Natural Science Foundation, China (ZR2020KE013 and ZR2018MEE022), and University QingChuang science and technology plan of Shandong (2019KJB015).
