Drop penetration tests were perform

Drop penetration tests were performed using a single droplet of
water-based binder (ZB7, Z Corporation, UK) falling and subsequently
penetrating on to the powder bed.To facilitat the mimicking of a typical
test powder bed, each powder bed was prepared by running the actual
3DP process. After the process, the reservoir in the build area was
removed from the 3D printer and subsequently used for the drop pene-
tration test. A digital syringe was positioned 8 mm above the powder
bed to minimize the occurrence of droplet impact on the powder bed
and also allow the droplet to fully discharge from the syringe. A droplet
volume of 30 μL was used and five replicates were preformed for each
composite powder. Thepenetration site for each droplet on the powder
bed was carefully chosen to ensure that there was no interference from
other pre-formed granules or reservoir walls. A high-speed particle
image velocimetry system (LaVision, Germany) was used to track the
complete drop penetration process (Fig. 1). The image velocimetry sys-
tem recorded each test at a rate of 60 frames s −1 . Following each test,
the drop penetration process was studied frame by frame to determine
the drop penetration time. The starting point was denoted as the in-
stance when the droplet first came into contact with the powder bed
surface, and thereafter the end point was defined as the time when all
the liquid was drained below the surface of the powder bed.

結果 (中文) 1:

使用一个单一的液滴的进行了滴渗透试验水性粘合剂 （ZB7、 Z 公司、 英国） 下降，随后穿透至粉床。根据典型的模仿到测试粉床，每个粉床制得运行的实际3DP 过程。这个过程中，生成地区储层后，从 3D 打印机上卸下，随后用于滴佩内-过滤试验。一个数字的注射器被安置了 8 毫米以上的粉末床上尽量减少熔滴冲击粉床上发生并且还允许液滴从注射器中完全排出。一滴采用 30 μ L 卷和每个手术治疗输卵管妊娠五个复制复合粉末。每个液滴对粉末的贯通性网站床是仔细的选择，以确保从无干扰其他预成型的颗粒或储层墙。高速粒子图像测速系统 （LaVision，德国） 被用来追踪完成滴侵彻过程 （图 1）。图像测速系统-瞬变电磁法在记录每个测试 s − 1 60 帧的速度。以下每个测试，滴侵彻过程进行了研究帧来确定滴穿透时间。作为在-表示起始点当液滴第一次接触粉末床的立场表面上，并在其后终结点被定义为时间当所有下面的粉床表面耗尽了液体。

結果 (中文) 3:

水滴渗透测试使用一滴
水基粘结剂进行（zb7，Z公司，英国）的下降和随后
渗透到粉床。方便制作模拟一个典型的
测试粉床，通过实际运行
3DP工艺制备各粉床。之后的过程，在建立地区储层是
从3D打印机和随后用于降准
牵引试验。数字注射器定位8毫米的粉
床之上减少水滴在粉床
冲击的发生也让液滴完全排出注射器。一个30μl滴
体进行五次重复进行一
复合粉。在粉
床各液滴渗透网站经过精心挑选，确保没有其他
预干扰形成颗粒或水库的墙壁。高速粒子图像测速系统
（lavision，德国）进行跟踪
完整滴渗透过程（图1）。图像测速系统
TEM记录每个测试在60帧的速率−1。以下各试验研究，
帧确定
下降渗透时间下降渗透过程。出发点是指在
立场当滴第一次接触到
粉床表面，然后终点被定义为时间时，所有的
液体排在粉床表面。