In the fields of chemical engineering, pharmaceuticals, food, printing, textiles, cosmetics, and even cutting-edge scientific research, the flow characteristics of liquids - viscosity - are key parameters that determine product quality, process efficiency, and performance. The petroleum product kinematic viscosity automatic measuring instrument is a modern precision instrument designed and manufactured in accordance with the national standard GB/T 265-88 Petroleum Product Kinematic Viscosity Measurement Method, providing an efficient and accurate automated solution for viscosity measurement of Newtonian liquids.
Core Principle: The Science of Gravity and Time
The core measurement principle of the instrument is scientifically rigorous: it measures a certain volume of liquid sample in a precisely controlled constant temperature environment, and the time required for it to flow through a rigorously calibrated glass capillary viscometer (such as a Pin or Ubbelohde viscometer) under the action of gravity. Its core formula is concise and powerful:
Kinematic viscosity (ν)=capillary viscometer constant (C) x flow time (t)
The measured kinematic viscosity (in mm ²/s, which is a commonly used practical unit for m ²/s) is multiplied by the density of the liquid at that temperature (ρ) to obtain the dynamic viscosity (η): η=957 × ρ. This process perfectly transforms physical phenomena into quantifiable and comparable data.
Intelligent automation: a leap in efficiency and accuracy
Compared to traditional manual measurements, the core advantage of this instrument lies in its high level of intelligence and automation
Accurate timing: Automatically detect and record the time of liquid flow through the capillary tube with high precision, eliminating human timing errors.
Automatic calculation: The built-in program instantly calculates the kinematic viscosity based on the preset capillary constant and measured flow time, and can further calculate the dynamic viscosity as needed.
Constant temperature control: ensuring that the entire testing process is in a constant temperature environment that strictly meets standard requirements, which is the cornerstone of viscosity measurement accuracy.
Simplified operation: greatly reducing the labor intensity and technical threshold of operators, improving testing efficiency, especially suitable for large-scale sample testing.
Widely applicable: running through the lifeline of modern industry
The application scope of the automatic viscosity analyzer for petroleum products far exceeds its name limit, and its tentacles extend to almost all important industries involving liquid flow characteristics:
Chemical industry: Accurately measure the viscosity of polymer solutions such as organic/inorganic solvents, polyvinyl alcohol (PVA), polyacrylamide (PAM), etc., to guide synthesis processes and formula adjustments.
In the pharmaceutical industry, ensuring the spreadability of ointments, the palatability of oral liquids, and the fluidity of injections (such as ensuring smooth injection) are key aspects of quality control for pharmaceutical formulations.
Food industry: monitoring the effectiveness of thickeners and stabilizers; Optimize the taste and texture of fruit juice, carbonated beverages, and dairy products (such as yogurt and cream); Control the processing characteristics and final consistency of products such as corn syrup and high fructose corn syrup.
Printing industry: Evaluate the printability (transferability, dryness) of water-based inks and solvent based inks; Test the bonding performance and construction convenience of printing adhesives and binders.
Textile industry: Control the leveling, permeability, and coloring uniformity of textile dyes and printing pastes.
Cosmetics industry: optimize the skin feeling and stability of face cream and lotion; Adjust the fluidity and user experience of shampoo and shower gel.
Research institutions: as basic research tools, explore the physical properties of liquids; Assist in the development of advanced materials such as polymers and nanofluids for performance characterization.
The automatic viscosity analyzer for petroleum products has become an indispensable quality control and research and development tool in modern industrial production and scientific research, thanks to its rigorous design that meets national standards, intelligent automated operation process, and excellent measurement accuracy. It not only efficiently solves the standardized measurement problem of Newtonian liquid viscosity, but also releases manpower through automation technology, improving the reliability and consistency of data. From raw material testing to product development, from process optimization to quality assurance, this instrument silently provides solid data support for improving the performance and quality of liquid products in various industries, driving the continuous leap of industrial quality.
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