Иш кетма-кетлиги
Download 0.83 Mb. Pdf ko'rish
|
МАТБАА МАТЕРИАЛЛАРИ INGLIZCHA
- Bu sahifa navigatsiya:
- Method and sequence of work
MACHINE AXIS.
The purpose of the work: to study the specific structural properties of paper as a porous capillary material. In addition, to create an understanding of anisotropy. YG002C Computer System for Paper Fiber Structure Analysis is a new generation of equipment, used to analyze animal skin fiber, artificial fiber, cotton fiber, hemp fiber, etc. This system consists of camera, microscope and software, and as an option, PC and PC can be provided for this system. The system processes the digital image through advanced computer technology, the operator follows the shape of the fibers on the screen, which makes fiber inspection easy, accurate and efficient Method and sequence of work: It is formed in the form of a sheet on the web of a paper injection machine. The direction parallel to the axis of the paper injection machine is called the machine direction, and the perpendicular position is the transverse direction. To determine these indicators, the mechanical properties of the paper are sharply different in these two directions. Several methods can be used to determine these indicators. 1. When looking closely at the surface of a paper sheet, it can be determined that the main plant fibers are oriented in one direction. This direction is considered as the direction of the car axis. 2. Using two strips of paper. Two 200x15 mm strips are cut from a sample of unknown paper direction in a direction perpendicular to each other. These strips are placed on top of each other and are tightened with fingers on one side, leaving the other end free. A drooping strip is taken along the machine axis, because between the fibers parallel to the machine axis, hydrogen and intermolecular forces dominate, resisting the bending of the strip, and this strip is less stretched. If we rotate the straps 180 degrees and observe: the less bent strap keeps the transverse strap from sagging. Each strip is routed and the results used in subsequent tests. 1. Based on mechanical strength. Strips sheared in two mutually perpendicular directions are tested on a dynamometer. A sample cut with greater force is assumed to be cut along the axis of the machine. The hydrogen and intermolecular bonds between cellulose chains parallel to each other are closer, as their total number is large, the mechanical strength in this direction is high. Download 0.83 Mb. Do'stlaringiz bilan baham: |
Ma'lumotlar bazasi mualliflik huquqi bilan himoyalangan ©fayllar.org 2024
ma'muriyatiga murojaat qiling
ma'muriyatiga murojaat qiling