The test principle and method of coating 4 cups determine that the fluid has a Newtonian flow and a non-Newtonian flow. The Newtonian flow is a fluid at a certain temperature, within a wide range of shear rate, the viscosity value remains unchanged, non-Newton The shear stress is not proportional to the velocity, and its viscosity changes with the shear stress. Solvent-based varnishes and low-viscosity paints in liquid coatings are Newtonian fluids, so research and discussion on Newtonian fluids should be carried out.
Roughness Tester P>Test Principle
There are many ways to measure the viscosity of a coating. The flow cup method is essentially an industrial vibrometer application for a capillary viscometer. Structurally, the volume between the bar coaters of the start line of the capillary viscometer is enlarged, and the elongated capillary portion is changed to a short short hole. Due to the large volume and the short outflow hole, it is convenient to operate and clean, and can be applied to opaque paint, so it is widely used now. The viscosity measured by the flow cup viscometer is the conditional viscosity, which is usually expressed by the time when a certain amount of sample flows out of the leveling device from the viscosity cup under certain conditions, in units of s. This viscometer is suitable for low viscosity varnishes and lacquers and is not suitable for the determination of non-Newtonian flow coatings such as high viscosity, high pigment dispersion coatings.
The method determined that the varnish used in this test had an outflow time of about 28 s, and 4 cups were suitable for the measurement of the paint with an effluent time of 20 to 150 s. Therefore, the test method was determined to be a coating-4# viscometer method. The specific operation is based on GB/T 1723-1993 "paint viscosity measurement method" stirrer.
For more information on the 4 cups, please visit: http://
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
A bidet seat is a bathroom accessory that is designed to enhance personal hygiene and comfort. It is a seat-like attachment that can be installed on a standard toilet, replacing the existing toilet seat. A bidet seat is equipped with various features and functions to provide a more thorough and convenient cleansing experience.
The primary purpose of a Smart Toilet seat is to provide gentle and effective cleansing after using the toilet. It uses water jets to spray a controlled stream of water onto the user's intimate areas, replacing the need for traditional toilet paper. This not only ensures a more hygienic clean but also reduces irritation and discomfort associated with wiping.
Smart bidet seats often come with adjustable water pressure and temperature settings, allowing users to personalize their cleansing experience according to their preferences. Some models may also offer additional features such as oscillating or pulsating spray modes for a more comprehensive clean.
In addition to cleansing, bidet seats may offer additional functionalities for enhanced comfort. Many models are equipped with a heated seat, providing warmth and comfort during colder seasons. Some bidet seats also feature air dryers that eliminate the need for toilet paper altogether, further reducing waste and promoting environmental sustainability.
The installation of a bidet seat is typically straightforward, requiring only basic plumbing skills. Most bidet seats can be easily attached to the existing toilet bowl using mounting brackets and connecting hoses. Some models may require access to a nearby electrical outlet for certain features like seat heating or air drying.
Bidet Seat,Toilet Seat Cover,Bidet Toilet Seats,Toilet Seat, Smart Toilet Seat
Guangdong Fabia Intelligent Technology Co., Ltd , https://www.fabiaintelligent.com