9 results about "Physical performance testing" patented technology

This utility model discloses a door and window physical performance testing device that facilitates the fastening of doors and windows in the field of door and window testing equipment technology. It includes a support frame, with physical testing components arranged on the top and sides of the support frame. Door and window panels are placed on one side of each physical testing component. The physical testing component includes a stamping testing part installed on the top of the support frame. Placement adjustment parts are arranged on both sides of the support frame. This door and window testing device, through the coordinated work of the support frame and the physical testing components (which include identically constructed stamping testing parts and placement adjustment parts), utilizes a hydraulic cylinder to adjust the distance between two sets of stamping positioners. This allows for flexible adaptation to door and window panels of different lengths and specifications. This flexible adjustment mechanism not only meets diverse testing needs and reduces time and labor costs associated with frequent parts replacement, but also achieves high efficiency and convenience in the testing process.

The invention relates to the technical field of physical performance testing, in particular to a motor controller detection device which comprises a testing frame, the output end of a motor body is connected with a testing shaft through a coupler, a friction disc is arranged on the testing shaft, a load disc is installed on the testing frame, the load disc and the friction disc are oppositely arranged, and when the motor body rotates at a low speed, the friction disc is driven to rotate. The detection device further comprises a power-off unit, a relay is connected between the power-off unit and the controller body, the power-off unit is used for automatically cutting off power supply of the controller body when it is detected that the motor body is continuously in a low-speed on-load state, and the power-off unit based on optical and thermal mechanical linkage works cooperatively through the load disc with the switchable friction face. An intelligent sensor concept is fused, the device can simulate on-load starting working conditions of motors with different power levels, and can cut off power supply of a controller in a delayed manner through a bimetallic strip without an external power supply when abnormal states such as continuous low-speed stalling are detected, so that the test safety is improved, and the application range is widened.

The invention discloses a building material physical performance testing device for building engineering, and relates to the technical field of building engineering material detection.The building material physical performance testing device comprises a testing platform, an experiment shell is fixedly installed on the top face of the testing platform, a stretching assembly is installed in the experiment shell and comprises a movable support, and a fixed support is fixedly installed on the top face of the testing platform; according to the steel bar tensile testing device, an impact plate is impacted when the steel bar is broken, so that a trigger striker ejects a second ball valve open, and high-pressure hydraulic oil in a lifting cylinder is guided into a pressure relief cylinder and a corrugated sleeve through a pressure relief pipe; meanwhile, a plurality of second springs are used for driving a movable piston, a lifting ring and an inner wedge-shaped sleeve to reset, and a plurality of sliding clamping jaws automatically loosen at the moment of breakage, so that reverse impact force is prevented from interfering sensor signals, and the judgment precision of breakage points and the stability of test data are improved.

The invention relates to the technical field of physical performance testing of high polymer materials, and particularly discloses a method and a system for testing lubricant to improve melt flowability, and the method comprises the following steps: acquiring motion state parameters and microstructure image data of a melt under the superposition action of rotary shearing and axial oscillation in real time; a sequence polarization image is collected, a synchronous data pair is generated through time alignment, and structural evolution parameters such as the molecular orientation relaxation rate and the interface slip layer thickness are quantized; a polarization intensity attenuation curve is fitted based on a single exponential attenuation model, and the effect of improving the internal friction of the melt body by the lubricant is directly represented; the difference between the apparent shear rate and the real shear rate is combined to deduce the thickness of an interface slip layer, and the efficiency of the lubricant for reducing external friction is quantified; and finally, a fluidity prediction report containing a multi-dimensional improvement degree index is generated, the efficiency change of the lubricant under different process parameters is revealed, and a scientific basis is provided for new material research and development and processing technology optimization.

The invention discloses a method and system for testing ice resistance of a super-hydrophobic surface structure of energy equipment, and belongs to the field of material physical performance tests.The method comprises the steps that a working electrode pattern is prepared on a super-hydrophobic surface test piece, and a physical connection loop is established; cooling control is executed, spraying is started to form an ice layer, alternating-current potential disturbance is applied, and a complex impedance data sequence is calculated; performing iterative fitting on the complex impedance data sequence to extract characteristic values of the electric double layer capacitance and the charge transfer resistance; the centrifugal rotating table is driven to perform uniform acceleration rotation, and the ice layer stripping critical rotating speed and the icing area are captured; three-dimensional point cloud data are collected to calculate structural damage characteristic values, and a multi-dimensional coupling attenuation model is established. According to the technical scheme, electrochemical impedance spectroscopy on-line monitoring, centrifugal mechanical stripping and laser confocal microscope morphology characterization are combined, and multi-dimensional, dynamic and quantitative coupling analysis of the ice resistance of the super-hydrophobic surface from a microscopic interface to macromechanics can be achieved.

The invention relates to the technical field of material physical performance testing equipment, and discloses a material science and engineering sample physical performance testing device which comprises a base, a detection box is arranged on one side of the top of the base, a moving mechanism is arranged on the upper surface of the base, and the moving mechanism penetrates through the interior of the detection box. A fixing mechanism is arranged at the top of the moving mechanism, a material frame and a cleaning mechanism are arranged on the other side of the base and located on the left side and the right side of the fixing mechanism, a portal frame is arranged on the front side of the detection box, and an impact mechanism is arranged on the side wall of the portal frame. Through cooperative work of the moving mechanism, the fixing mechanism and the cleaning mechanism, automation of the whole process from sample clamping, surface cleaning, transferring to a testing station, impact testing and finally feeding into a detection box is achieved, the single-time testing period is greatly shortened, and the overall testing efficiency is improved.

The invention relates to the technical field of textile physical performance testing, and discloses a textile physical performance testing method based on a sensor, and the method comprises the following steps: S1, processing before inspection, S2, preliminary information collection, S3, washing, and S4, low-tension extraction. S5, drying; S6, data processing; and S7, calculating the shrinkage rate. According to the technical scheme, the sample is lifted out of water in a horizontal lifting mode through the tray with the plane, the problem that after the sample is just washed, due to the fact that the self weight of the sample with water is large, the sample is prone to being pulled, and then irreversible deformation is generated is effectively solved, the operation mode is optimized, and the testing precision is effectively improved. By means of the tray with the pressure sensor matrix, whether the position of the sample is correct or not can be tested in the preliminary sample information collection process, it is guaranteed that the initial spreading state of the sample is qualified from the source, and follow-up test errors caused by improper sample spreading are avoided.

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.

This invention discloses a packaging box printing surface defect detection device, belonging to the field of printing surface physical performance testing technology. It includes a gantry inspection frame, with bidirectional centering reset units fixedly installed at the middle positions of both sides of the inner wall of the open end of the gantry inspection frame. A first detection unit and a second detection unit, positioned one above the other, are assembled through these bidirectional centering reset units. The bidirectional centering reset units ensure that the first and second detection units always maintain a centered, close-fitting movement to clamp the packaging box panel. Through dynamic torsion detection, the physical integrity of the packaging box printing surface coating is detected online under simulated bending conditions. This differs from existing technologies that rely on static optical measurements and cannot capture cracking defects in the coating during subsequent molding processes. The device uses a detection camera and lightbox inside a high-transparency cylinder to observe the coating in real time during the torsion process.