Mooney Vicometer in the application of varnish coating
Mooney Vicometer is a common measuring instrument used in industrial production and scientific research to measure the viscosity of fluids (liquid and gas). Viscosity is the physical quantity that represents internal friction in the fluid when the fluid is flowing. It is the ability of the fluid to resist deformation and is an important indicator used to identify certain finished or semi-finished products. The Mooney Vicometer manufacturer tells you that the viscosity varies with different fluids and varies with temperature.
When the liquid flows, the property of internal friction between its molecules is called the viscosity of the liquid. The viscosity is expressed by the viscosity, which is used to characterize the resistance factor related to the properties of the liquid.
The varnish coating is designed to protect PCB and equipment from environmental factors. The Mooney Vicometer manufacturer tells you that the coating can provide excellent protection and coverage to maximize the life of the PCB. Features such as low humidity, permeability and strong chemical/mechanical resistance can enhance varnish performance.
The Mooney Vicometer manufacturer tells you that the properties of solvent-based varnishes (acrylic, silicon, epoxy, polyurethane) come from the base resin and additives. Organic solvents reduce the viscosity of the base resin, allowing people to apply varnishes by dipping, dipping, spraying and brushing.
The manufacturer of Mooney Vicometer tells you that if the varnish coating of the electronic components is not uniform, it will not only cause direct economic losses, but also affect the company's reputation due to poor product quality. In order to make the varnish have good uniformity, it is necessary to precisely adjust the amount of solvent used. The manufacturer of Mooney Vicometer tells you that the uniformity of the varnish is the flow characteristic of the coating solution, which can be adjusted by maintaining a constant viscosity. Therefore, it is very necessary to monitor the viscosity of the varnish.
The Mooney Vicometer manufacturer tells you that the only reliable solution to control the uniformity of the varnish is online viscosity control. The Mooney Vicometer is installed on the coating process circulation loop related to the electronic signal and the controller, and a certain amount of solvent can be injected into the base resin in time during the entire production batch/process. The temperature of the coating solution can be controlled as needed to maintain stable viscosity conditions.