![]() ![]() Providing data for one is useless without the other. PROBLEM TO BE SOLVED: To obtain an ink with improved flowability regulation, sag-proofness, emulsion stability, pigment dispersibility, film formability. Its viscosity is not only a function of temperature, but also of shear rate. Viscosity is determined in part by the amount of hematocrit, red blood cells, white blood cells, and proteins in the blood. Check with your supplier for specific recommendations.įinally: Solder paste is a non-Newtonian fluid. A typical Helipath test may gather over four hundred data points from start to finish. I usually put a solder paste in refrigerator and take it if i want to use i let it abt 2 hour then i mix with solder paste mixer? Am I doing right? A4: The typical warming or stabilization time for solder paste is four to six hours. To overcome these problems, the Helipath Stand with T-bar spindles is commonly used to test highly viscous heterogeneous materials, gels, pastes, creams, putty and other non-flowing substances where traditional smooth geometries fail. * Too thin (low viscosity) may lead to the paste slumping. Paste that is: * Too thick (high viscosity) may lead to a bad print in the form of an insufficient volume. ![]() ![]() Which one is better, higher viscosity or lower viscosity and what is relation of them to defect of production? A2: Viscosity is important. ASTM D4040-05 "Standard Test Method for Rheological Properties of Paste Printing and Vehicles by the Falling-Rod Viscometer" is a test method that might work. What is recommended viscosity standard? A1: There is no standard. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |