9 results about "Scratch test" patented technology

A scratch resistance testing device for decorative panels relates to the field of PET film-faced artificial board testing technology. It includes a test platform, a sliding mounting frame on the base, and a partitioned pressure testing component within its groove. This component includes a movable seat, a pressure testing frame, a support rod, a support plate, and a scratching head. It works in conjunction with a pressure-dividing return assembly to achieve segmented pressure scratching. A telescopic scraping component is installed in the bottom through-hole of the lower empty-stroke scraping component for chip removal, and a negative pressure impurity removal component is also provided. The scheme includes three pressure blocks that cooperate with the pressure testing frame, allowing the scratching head to automatically complete three segments of scratches with different pressures during continuous movement. Blank intervals are left between segments to avoid interference, enabling multiple tests per scratch and segmented comparison. Multiple elastic telescopic scraping heads remove debris, fibers, and dust adhering to the scratching head in the blank areas. Simultaneously, an elastic pull rope and piston drive a negative pressure cylinder to precisely extract residue from within the scratch, avoiding obscuring the true morphology. This ensures the efficiency, consistency, and accuracy of the scratch resistance testing of PET film-faced artificial boards.

The present invention provides a laminate containing a surface layer that exhibits excellent mattifying properties and yields good results in both needle scratch tests and fingernail scratch tests, as well as a surface coating composition capable of preparing such a surface layer. [Solution] The laminate of the present disclosure includes a substrate, and a surface layer having scratch resistance and matte finish, which contains resin beads having an average particle size of 1 micrometer or more and 20 micrometers or less, and a glass transition temperature greater than -30°C and less than 34°C, and a binder, wherein the surface layer contains less than 75% by mass of resin beads based on the total weight of the surface layer, and when the elastic modulus of the surface layer is measured with an atomic force microscope, the region of the surface layer other than the resin beads exhibits an elastic modulus of 65 MPa or less.

The application belongs to the technical field of material surface performance testing, and discloses an ultrasonic vibration assisted scratch test bench and method. The test bench comprises: an X-axis transmission component directly connected with an X-axis ultrasonic module through mechanical structure, which simplifies the vibration transmission path, directly transmits the vibration energy to the workpiece, and controls the speed of the scratch through the X-axis transmission component; a Y-axis transmission component directly connected with a Y-axis ultrasonic module through mechanical structure, which simplifies the vibration transmission path, directly transmits the vibration energy to the workpiece, and realizes the scratch at different positions in the Y-axis through the Y-axis transmission component; and a Z-axis transmission component directly connected with a Z-axis ultrasonic module through mechanical structure, which simplifies the vibration transmission path, directly loads the vibration energy to the workpiece, and completes the loading in the Z-axis direction through the Z-axis transmission component. The application provides guidance for the application of ultrasonic vibration machining technology in difficult-to-machine materials and brittle and hard materials.

This invention discloses a production line for processing wood-plastic composite sound-absorbing panels, comprising: a raw material pretreatment system, a plasticizing extrusion system, a cooling and shaping system, a cutting system, and a testing system, sequentially connected and controlled by a central control system. The testing system includes: an appearance inspection module, a size inspection module, a physical performance testing module, an automatic rejection device, and a data traceability system. The friction and wear testing device includes: a base shell, a cover shell, a sub-controller, a friction testing mechanism, a first vision sensor, a handling robotic arm, a mounting groove, and a scratch testing mechanism. This production line for processing wood-plastic composite sound-absorbing panels, through optimized collaboration between production and testing, enables long-term continuous batch production and solves the problems of low accuracy, strong subjectivity, and low efficiency in testing the physical performance of wood-plastic composite sound-absorbing panels. It can accurately capture the wear rate, scratch resistance durability, and coating peeling of samples.

The application discloses a kind of liquid environment in ultrasonic auxiliary scratch test device and method, it uses ultrasonic vibration auxiliary technology, combines motion control platform and electric two-dimensional sliding table system, realizes the high-precision simulation of tool in liquid immersion condition and the accurate regulation and control of scratch process parameter.By accurate force measurement, the mechanical evolution process of burr formation under liquid immersion condition is collected in real time, a new experimental research method is constructed for revealing material removal mechanism and liquid immersion burr formation law, which significantly improves the experimental controllability and data reliability of burr formation mechanism research under liquid immersion condition.

The present application relates to a kind of laser-vibration coupling auxiliary micro / nano scratch test device, belong to multi-energy field coupling auxiliary scratch test technical field.The device mainly includes X / Y direction precision positioning platform, microscopic observation unit, Z direction precision positioning platform, laser light path adjusting unit, Z direction vibration generation unit and X / Y direction vibration generation unit.X / Y direction vibration generation unit is installed on X / Y direction platform, and the platform is fixed on marble base and gantry with Z direction vibration generation unit respectively.Laser light path adjusting unit is installed on Z direction platform, and laser focal point position is adjusted by X, Y direction adjusting knob.The device is equipped with X, Y, Z direction force sensor and displacement sensor for signal acquisition, and microscopic observation unit is used for real-time observation.The device can realize from single dimension to multidimensional vibration assistance, laser-vibration assistance and vibration in situ laser assistance scratch test.

1. The name of the design product: multifunctional building paint detector. 2. The use of the design product: scratch test, pull-off method (adhesion test) and bending test on building coating. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: perspective view. 5. The right view is the same as the left view, and the right view is omitted; the rear view is the same as the front view, and the rear view is omitted.

The application provides a different orientation fiber material abrasion testing device and method, and belongs to the field of material performance testing. The device comprises a base, an X-Y axis two-dimensional moving platform, a sample clamp, a vertical beam, a fixed beam, a loading beam, a loading device and a testing indenter device; the sample clamp comprises a rotating table with an angle scale, which can accurately adjust the included angle between the fiber orientation and the scratch direction. The method comprises: sample pretreatment and fiber orientation pre-marking; clamping and calibrating the orientation angle; applying a constant load by driving the diamond indenter through the loading motor, and completing the scratch test by cooperating with the moving platform; and changing the angle to complete the comparison test of different orientations. The application effectively solves the problems that the existing technology cannot accurately match the influence of fiber orientation on abrasion behavior and the controllability of test variables is poor, realizes multi-dimensional and standardized abrasion testing, and has good data repeatability and high reliability.