CATEGORIES

    Ring Sampler

    Overview Knowledge Standards Terms
    The ring sampler obtains circular samples from the material surface through a rotary cutting method, used for testing properties such as the thickness and adhesion of coatings and inks. During operation, the cutter is pressed vertically into the material and rotated for cutting, making it suitable for standardized sampling of coatings and films in laboratory settings.
    Selection
    When selecting, consider the sampling diameter to match the testing standards. The blade material should be suitable for the hardness of the sample. Choose between manual or electric models based on the sampling frequency. The fixed-depth function ensures consistency in cutting. Pay attention to the sampler's weight, as it affects operational stability. The cleaning design facilitates maintenance.
    type

    Terms

    Ring Crush Sampler

    Standards

    Active GB/T 45771-2025
    Fine ceramics—Methods for evaluating wear and friction characteristics of ceramic thin films under dry and humid conditions
    Active GB/T 12007.6-1989
    Epoxide resins--Determination of softening point--Ring and ball method
    Active GB/T 12007.7-1989
    Determination of gelation time of epoxide resins
    Active GB/T 12007.2-1989
    Epoxide resins--Determination of sodium ion
    Active GB/T 41931-2022
    Plastics/rubber—Polymer dispersions and synthetic rubber latices—Freeze-thaw cycle stability test
    Active GB/T 31125-2014
    Test method of adhesive tapes—Loop tack
    Active GB/T 2423.20-2014
    Environmental testing—Part 2：Test methods—Test Kd: Hydrogen sulphide test for contacts and connections
    Active GB/T 36264-2018
    Test method for tensile strength of fiber composites under ultrahigh temperature and oxidizing environment
    Active GB/T 2423.5-2019
    Environmental testing - Part 2: Test methods - Test Ea and guidance: Shock
    Active GB/T 13477.14-2019
    Test method for building sealants－Part 14：Determination of resistance to prolonged exposure to water
    Active GB/T 38924.6-2020
    Environmental test methods for civil small and light unmanned aircraft system—Part 6: Vibration test
    Active GB/T 38924.7-2020
    Environmental test methods for civil small and light unmanned aircraft system—Part 7: Humidity test
    Active GB/T 38924.3-2020
    Environmental test methods for civil small and light unmanned aircraft system—Part 3: High-temperature test
    Active GB/T 38924.5-2020
    Environmental test methods for civil small and light unmanned aircraft system—Part 5: Shock test
    Active GB/T 38924.9-2020
    Environmental test methods for civil small and light unmanned aircraft system—Part 9: Waterproofness test

    Articles

    Application of Gravure Printing Proofer in Water-based Ink Proofing and Pinhole Defect Evaluation
    This article introduces how the gravure printability tester is used for water-based ink proofing and pinhole defect evaluation. Water-based inks are environmentally friendly but prone to tiny pinhole defects. The instrument enables standardized sample preparation and reduces human interference by controlling parameters such as cell depth and doctor blade angle.
    How is a high-temperature muffle furnace applied in ash determination?
    This article introduces the application of high-temperature muffle furnaces in ash determination. The principle of ash determination involves completely burning the sample at high temperatures, leaving behind inorganic mineral residues. The muffle furnace provides a stable and controllable thermal environment, ensuring accurate results.
    Application of High-Frequency Fatigue Testing Machine in Infinite Life Testing of Valve Springs
    This article discusses the application of high-frequency fatigue testing machines in the infinite life testing of valve springs. The test simulates the long-term working stress of the spring through high-frequency cyclic loading, with parameters such as preload, amplitude, and cycle count set according to international standards.
    Constant temperature bath selection: circulation method and temperature control range.
    This article on thermostatic bath selection primarily analyzes two core factors: circulation mode and temperature control range. The circulation mode is divided into natural convection and forced circulation, where the former is suitable for simple static experiments, while the latter offers higher precision and is better suited for multiple samples or integration with external devices.
    Transverse Burst Strength Tester for the Evaluation of Impact Resistance of Corrugated Cardboard
    This article explains how a lateral bursting strength tester is used to evaluate the impact resistance of corrugated cardboard. It measures the energy absorbed by the cardboard at the point of rupture using the pendulum impact principle, requiring the preparation of specimens according to standards and the control of environmental conditions during testing.
    Rapid temperature change high and low temperature test chamber for thermal fatigue evaluation of PCB board solder joints.
    This paper discusses the application of rapid temperature change high and low temperature test chambers in evaluating the thermal fatigue of PCB board solder joints. Solder joint fatigue is primarily caused by differences in material thermal expansion, and the test chamber simulates thermal stress through temperature cycling to accelerate the fatigue process.
    Application of Three-Chamber High and Low Temperature Test Chambers in Rapid Temperature Cycling for Electronic Products
    The three-chamber high-low temperature test chamber is used for reliability testing of electronic products, enabling rapid temperature transitions through independent high temperature, low temperature, and test zones. Compared to traditional single-chamber equipment, it reduces temperature change time and enhances testing efficiency.
    Sensitivity Enhancement of Dark Box UV Analyzers in Thin-Layer Chromatography Fluorescence Detection
    This article explores how to enhance the sensitivity of dark box ultraviolet analyzers in fluorescence detection for thin-layer chromatography. Sensitivity is influenced by factors such as light source stability, wavelength accuracy, sample background, and ambient light.
    Application of Transparent Constant Temperature Water Bath in Visualization of Material Thermal Deformation
    The constant temperature water bath provides a stable environment for observing the deformation of materials after heating by maintaining a constant and uniform temperature of the liquid medium.
    The Impact of Cooling Circulating Water Chillers on the Temperature Stability of Digesters
    The cooling circulator helps maintain a stable temperature for the digester by circulating the cooling medium, thereby improving the repeatability of experiments. Its working principle involves using a refrigeration system to lower the water temperature, and then circulating the cooled water to the digester through a circulation pump to absorb excess heat.
    Temperature-controlled Rotational Viscometer Simulates Coating Rheology in Construction Environments
    This article introduces how to use a temperature-controlled rotational viscometer to simulate construction environments in order to study the flow characteristics of coatings. The viscosity of coatings changes under different temperatures and shear conditions, which affects their application performance.
    Effect of Rapid Temperature Change Aging Chamber on Thermal Cycling of Composite Materials
    This article primarily explores how rapid thermal cycling chambers affect the performance of composite materials during thermal cycling. It explains that thermal cycling can induce internal stresses in composite materials due to differences in the thermal expansion coefficients of their components, potentially leading to microcracks or performance degradation.
    Salt spray aging test chamber for cyclic corrosion evaluation of coating weatherability.
    This article introduces the method of using a salt spray aging test chamber to conduct cyclic corrosion tests for evaluating the weather resistance of coatings.
    High-temperature aging test chamber accelerates life testing of electronic components.
    The high-temperature aging test chamber accelerates the physical and chemical changes within electronic components by simulating high-temperature environments, thereby predicting their long-term performance and failure modes.
    Application of Xenon Lamp Aging Test Chamber in Automotive Coatings ASTM G155
    Xenon lamp aging test chambers simulate environmental conditions such as solar radiation, temperature, and humidity to evaluate the weather resistance of automotive coatings under the ASTM G155 standard.