Method for testing striking-splashing performance of liquid on surface of inclined rotating disc

Abstract

The invention relates to a method for testing striking-splashing performance of liquid on the surface of an inclined rotating disc and belongs to the technical field of solid surface wetting. According to the method, an included angle between the rotation shaft of the rotating disc and the gravity direction can be adjusted within 0-90 degrees, drops strike the surface of the rotating disc, rotating around a central shaft, in a certain speed, a certain included angle is formed between the gravity of the drops and the surface of the rotating disc, and the drops fly away from the rotating disc under the common action of an adhesive force, a centrifugal force and the gravity. The method comprises the following steps: recording a spatial three-dimensional coordinate of a drop point of the splashing drop by taking the striking point on the rotating disc as an original point; and calculating a distance s from the drop point of the splashing drop to a descent line of the drop, testing the influence caused by an inclined angle of the rotating disc to the distance s, and representing the influence caused by the solid surface wetting performance to a solid-liquid striking-splashing process. According to the method, the optima striking angle of the drop is obtained by setting the inclined angle of the rotating disc, so that the product quality stability in the production of rapid-quenching amorphous alloy ribbons is improved.

Description

Technical field [0001] The invention belongs to the technical field of solid surface wetting, and specifically relates to a solid-liquid impact-splash performance test method. Background technique [0002] During the flight, the wing of an aircraft collides with water droplets in the air. After the collision, the water droplets may spread on the surface of the wing or fly off the surface of the wing. The water spreading on the surface of the wing will increase the mass of the aircraft, and icing will occur when the temperature is right, which will affect flight safety. The splashed droplets may hit weak parts of the aircraft. [0003] Single roll rapid quenching method, also known as solution cold roll spin coagulation method, continuous casting thin strip method (see image 3 ). The metal solution is sprayed on the surface of the high-speed rotating cooling roll and spreads under the action of gravity and wetting to form a molten pool; the interface layer between the molten pool ...

AI Technical Summary

Problems solved by technology

The liquid in the molten pool sometimes breaks away from the cooling roller during high-speed movement, and the splashed liquid droplets cool and crystallize, which reduces production efficiency and increases production costs

Some high-viscosity, non-wetting alloy liquids exhibit severe splashing, making it difficult to form amorphous metal ribbons

Images