35 results about "Sclerometer" patented technology

The invention relates to the technical field of material mechanical property testing, and discloses a material indentation and scratch testing device and method under a composite energy field, and the device comprises a supporting experiment table, a vertical micro-motion platform, a horizontal micro-motion platform, a high-definition optical microscope, a force sensor, a displacement sensor and an additional energy field generation system. According to the method, a controllable additional energy field is synchronously applied while a mechanical indentation or scratch load is applied to a hard and brittle material sample, and load displacement data is collected in real time. In the data processing stage, the real hardness is calculated by adopting a corrected proportion sample resistance model, the elastic modulus is calculated based on the Oliver-Pharr theory, and the fracture toughness of the material is analyzed and calculated according to the size of the indentation tip crack. The problem that in-situ mechanical property characterization cannot be carried out in a composite energy field in a traditional test is solved, the hardness calculation precision is improved, the fracture toughness measurement function is expanded, and the experimental device and method are provided for research of a hard and brittle material composite machining mechanism.

The invention provides a method for measuring the position of a welding seam by using a Leeb hardness tester. Comprising the following steps that firstly, a theoretical position line of the center of a welding bead is drawn according to a reference positioning datum; secondly, two datum lines parallel to the theoretical position line of the center of the welding bead are drawn out; thirdly, weld bead excess weld metal or protrusions at the measuring positions on the two sides of the center line are polished and removed; step 4, a measurement position line is drawn between the two datum lines, the measurement position line is perpendicular to the two datum lines, and a measurement point is drawn on the measurement position line every 3mm; step 5, measuring the hardness of each measuring point by using a Leeb hardness tester, wherein each measuring point is measured for more than three times; analyzing an average value of measurement data of each measurement point, and drawing a hardness-position curve graph according to a position corresponding relation; obtaining the position and boundary dimension information of the welding seam according to the measurement position point by comparing the hardness change area; and more accurate position and boundary dimension information of the weld joint is obtained in a measurement point encryption mode.

The present application relates to the field of metal material processing, and particularly relates to a low alloy steel resistance spot welding nugget hardness prediction method, which comprises obtaining a Vickers hardness detection value of a steel plate; obtaining a hardness calculation value of the steel plate through chemical composition, a hardness related value of spot welding parameters; and calculating a welding spot nugget hardness prediction value.The present application has the following advantages: the hardness value is calculated and predicted, the welding piece is not damaged, the detection time and workload are greatly reduced; the hardness of the welding spot nugget can be quickly predicted before or during welding, potential quality problems can be found in time, and production efficiency is improved; the present application comprehensively considers the Vickers hardness detection value of the original steel plate, the hardness calculation value of the steel plate obtained through chemical composition, and the hardness related value of the spot welding parameters, and the welding spot nugget hardness prediction value is calculated and predicted, so that the actual hardness of the welding spot nugget can be comprehensively and accurately reflected.

1. Name of the design product: Microhardness tester. 2. Use of the design product: Used for measuring the hardness of objects. 3. Design key points of the design product: Lies in the shape of the product. 4. Picture or photograph that best shows the design key points: Perspective view 1.

The invention relates to the technical field of hardness detection, in particular to a wear-resistant material hardness detection method and system. The method comprises the following steps: in a loading and pressure maintaining stage, irradiating an indentation area by using a multi-angle discrete spectrum light source and synchronously acquiring an image sequence; identifying a microstructure heterogeneous area based on the reflectivity difference of the image to obtain a material microstructure heterogeneous degree parameter; reconstructing the three-dimensional surface topography of the indentation area, calculating the spatial deviation between the three-dimensional surface topography and the ideal indenter model so as to determine an asymmetric distortion parameter, and obtaining a corrected indentation projection area considering the influence of the heaving or sinking of the material; a hardness value is calculated by using a hardness calculation model, a weight coefficient of the model is adjusted according to a heterogeneity parameter, and input comprises correction of an indentation projection area and an asymmetric distortion parameter. According to the scheme provided by the invention, the accuracy and representativeness of hardness detection can be improved by comprehensively quantifying the three-dimensional shape distortion and the microscopic heterogeneity.

The detection tool comprises a Rockwell surface hardness tester, a hand wheel is installed in the middle of the outer surface of the upper end of the Rockwell surface hardness tester, a lead screw is arranged on the upper portion of the hand wheel, and a material table is connected to the outer surface of the upper end of the lead screw. A display dial plate is arranged on the upper portion of the outer surface of the front end of the Rockwell surface hardness tester, a measuring needle is arranged above the material table, and ejector sleeve lifting and limiting assemblies are fixedly installed in the middles of the outer surfaces of the two sides of the material table. According to the detection tool for ejector sleeve inspection, the ejector sleeve body can be conveniently supported and limited through the arranged ejector sleeve lifting and limiting assembly and the arranged supporting block and the arranged limiting groove, the situation that the ejector sleeve body needs to be manually supported in the detection process is avoided, the arranged ejector sleeve lifting and limiting assembly and the arranged ejector sleeve lifting and limiting assembly are detachably assembled, and the detection efficiency is improved. And the supporting blocks with the limiting grooves of different sizes can be conveniently replaced according to the ejector sleeve bodies of different sizes.

The invention discloses automatic verification equipment for multiple types of Shore durometers, and belongs to the technical field of durometer verification, the automatic verification equipment comprises a workbench, a base and an adjusting mechanism, the base is arranged on the workbench, the adjusting mechanism is located on the front side of the base, and a clamping assembly capable of fixing the durometers is arranged on the adjusting mechanism; a driving mechanism capable of driving the adjusting mechanism to operate is arranged on the rear side of the base, a detection frame is arranged at the coaxial position of the clamping assembly, a plurality of measuring pieces for simulation measurement of a hardness meter are arranged on the detection frame and surround the clamping assembly, and a CCD monitor is arranged on the front side of the detection frame. According to the shore durometer multi-angle measurement automatic verification device, multi-angle measurement automatic verification can be carried out on the shore durometer, whether the accuracy of a measurement result can be ensured or not in the state that the shore durometer is shaken and in the different-angle measurement state is simulated, verification data of the shore durometer are richer, and the defects existing in a conventional verification mode are effectively overcome.

The invention discloses a stack type auto-encoder-based cold rolled steel hardness electromagnetic nondestructive testing method, which comprises the following steps of: firstly, acquiring the content of martensite in a material based on electron backscatter diffraction (EBSD), and acquiring the hardness of the material based on a Vickers hardness tester; the method comprises the following steps: carrying out electromagnetic nondestructive testing on a ferromagnetic material based on a multi-magnetic testing device to obtain electromagnetic parameters representing the magnetic characteristics of the material, then analyzing the relationship between hardness and martensite content, explaining the principle that the electromagnetic characteristics represent the hardness, and then extracting deep characteristics of electromagnetic signals by using a stack type auto-encoder; the material surface hardness is classified by taking the electromagnetic characteristic parameters of the material as input and the material surface hardness as output, so that the online nondestructive testing of the hardness of the cold rolled steel is realized. The invention provides a digital and rapid evaluation means for detecting the surface hardness of the ferromagnetic steel and iron material, so that the detection efficiency is improved, and the detection cost is reduced.

1. The name of the design product: hardness tester (DHVK-1000A). 2. The use of the design product: for detecting the hardness of an object. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

1. The name of the design product: hardness tester (HVR-150). 2. The use of the design product: for detecting the hardness of an object. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The utility model discloses an easy-to-clean durometer with a limit buckling mechanism, which comprises a machine body, the machine body is C-shaped, the outer surface of the machine body is provided with a lifting platform in a sliding manner, one end of the machine body far away from the lifting platform is provided with a rotating and sliding mechanism, and the other end of the machine body far away from the lifting platform is provided with a limit buckling mechanism. The material can be clamped and fixed by rotating the sliding mechanism, so that the to-be-measured material cannot move around to cause measurement deviation. According to the easy-to-clean durometer provided with the limiting buckling mechanism, a worm can be rotated to drive a worm gear to rotate, the worm gear rotates to drive a screw rod to rotate together, clamping plates on the two sides can be drawn close to the center or move to the two sides along with rotation of the screw rod, the clamping plates can drive clamping heads to clamp a material needing to be detected, and the material needing to be detected can be conveniently detected. And through the self-locking property of the worm and the worm gear, the chuck cannot be automatically loosened after clamping the material, and the material cannot move when being in contact with the measuring head, so that the accuracy of data obtained during detection is improved.

1. The name of the design product: hardness tester. 2. The use of the design product: for hardness measurement of metal materials and metal coating, plating, hardening layer. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1.

The utility model discloses a positioning mechanism of a portable durometer. The positioning mechanism comprises a mounting module and a positioning module arranged on the mounting module, the mounting module is used for being mounted and fixed on a detected surface; the positioning module is provided with a positioning groove, and the positioning groove is used for positioning and installing hardness detection equipment, so that a detection head of the hardness detection equipment is perpendicular to a detected surface. The positioning mechanism of the portable durometer, disclosed by the utility model, is ingenious in structural design, and ensures that a detection head on hardness detection equipment can be vertical to a detected surface when the hardness detection equipment is mounted in the positioning groove through accurate geometric structure design and angle design, so that rapid positioning is realized; the method has the advantages of simple operation and accurate positioning, and can significantly improve the accuracy and efficiency of hardness detection.

Portable hardness tester (1) for standard-compliant hardness testing according to the Rockwell, Vickers and / or Brinell methods, comprising: -a beak-like clamping system (2) for clamping an object to be measured, consisting of a hold-down device (26), a counter-holder (22) and an approach device (10, 12, 14, 16, 18, 20); -a unit (3) pivotably attached to the clamping system by means of a solid or leaf spring joint (20a), consisting of a spring body (36), a reference structure (34) and an indenter (48), as well as a measuring means (4) for determining the displacement of the indenter relative to the surface of the object to be measured; - a device (50, 50a, 50b) attached to the clamping system for applying a load to the spring body, which the spring body transfers to the indenter and thereby deforms the spring body relative to the reference structure; and a load determination means (5) which indicates the load exerted on the indenter by measuring the displacement of a point of the spring body relative to the reference structure;

1. The name of the design product: ultrasonic hardness tester. 2. The use of the design product: the design product is a portable hardness detection device based on ultrasonic contact impedance method, which is widely used in hardness measurement of metal materials. 3. The design points of the design product: in shape. 4. The picture or photo that best indicates the design points: reference drawing in use. 5. Assembly description if necessary: the design product is an assembly product, component 1 is the handle of the ultrasonic hardness tester, and component 2 is the handset of the ultrasonic hardness tester.

The utility model discloses a multi-specification durometer which comprises a Rockwell durometer base and a detection table, the upper end of the Rockwell durometer base is connected with a detection assembly, the lower end of the detection table is connected with an adjusting assembly, and the interior of the detection table is connected with a temperature compensation assembly. The temperature of the detection table is detected by utilizing a thermometer on the detection table and is compared with detection temperatures required by different detection materials, if the temperature difference is large, temperature compensation is performed, and if the temperature of the detection table is lower than the detection temperatures required by the detection materials, a valve I is opened, and a thermal medium is introduced into a medium inlet hose by utilizing a conveying pump body and the like; and the temperature of the detection table is detected by using the thermometer until the temperature is basically equal to the detection temperature required by the detection material, so that the temperature can be prevented from influencing the detection result of the material hardness.

The utility model discloses a hardometer lever group structure, which belongs to the technical field of hardometers and comprises a base, a lever group, a lever group, a lever group, a lever group and a lever group, one end of the lever is hinged in the mounting cavity, and the other end of the lever extends out of the base; the top sleeve is installed in the graphite copper sleeve in a sliding mode, a flange is arranged at the end, located in the installation cavity, of the top sleeve, and a spring is arranged on the top sleeve between the flange and the graphite copper sleeve in a sleeving mode; and the positioning disc is fixed at one end, extending out of the graphite copper sleeve, of the top sleeve. According to the utility model, the graphite copper sleeve is used, and the self-lubricating property of the graphite copper sleeve is utilized, so that the ejector sleeve moves in the graphite copper sleeve, stable and accurate guidance can be provided for the measuring part and the ejector rod, the problem of shaking generated by using a ball bearing in the past is avoided, the influence of abrasion on precision is effectively reduced, and the accuracy and the stability of measurement are improved.

The invention provides an inspection method for a tufftriding infiltrated layer of a workpiece. The inspection method comprises the following steps: carrying out tufftriding treatment on the workpiece; inlaying a conductive hot inlaying material into the tufftriding permeation layer; embedding the solid phase type embedding material into the tufftriding permeation layer; the workpiece is ground; the workpiece is polished; the workpiece is cleaned; and observing and measuring the thickness and hardness of the tufftriding infiltrated layer through a micro Vickers hardness tester, and if the thickness of the tufftriding infiltrated layer is greater than a thickness threshold value preset by an operator and the hardness of the tufftriding infiltrated layer is greater than a hardness threshold value preset by the operator, listing the corresponding workpieces as qualified products. By the adoption of the technical scheme, after the conductive type hot inlay material is inlaid, the edge of the workpiece is protected and prevented from being damaged, after the solid-phase type inlay material is inlaid, the significance of a boundary between a nitriding layer and a workpiece base body is improved, and inspectors are promoted to make accurate judgment and obtain accurate actual measurement data of the thickness and hardness of the nitriding layer.

The application discloses an impact-resistant liquid-gas combined breaking hammer and a use method thereof, and relates to the technical field of breaking hammers.The breaking hammer comprises a data acquisition module, the data acquisition module comprises a camera and a structured light sensor, the camera is used for acquiring the color and texture of the broken material, and the structured light sensor is used for acquiring the deformation and displacement data of the broken material in the stress process.The camera can acquire the color and texture of the broken material, and then the local database is used to acquire the related data of the broken material, so that the impact force required for breaking can be adjusted.For the broken material that cannot be recognized by the camera, the structured light sensor is used to acquire the deformation and displacement data of the broken material in the stress process, the hardness of the broken material is calculated according to a hardness calculation model, the required impact force is adjusted, and then the breaking efficiency and service life are improved.

The utility model relates to a double-objective double-pressure-head Brinell hardness tester which comprises a shell, a turntable housing is arranged at the inner top of the shell, and a rotatable four-functional-position turret mechanism is arranged in the turntable housing. By adopting the four-functional-position turret mechanism, different testing functions can be quickly switched in the same equipment, the whole testing head does not need to be replaced or the equipment does not need to be recalibrated, meanwhile, the platform lifting mechanism is introduced, so that a testing sample can be accurately adjusted to the optimal testing position, and the testing efficiency is improved. The display screen embedded in the laminated board provides an intuitive user interface, so that an operator can easily check test parameters, test results and state information, the hardness tester can observe indentations under different magnification times due to the design of the double objective lenses, and the measurement accuracy and flexibility are improved; due to the design of the double detection pressure heads, the durometer can easily meet different test requirements.

Provided is a glass powder having a D50 of 1 [mu] m or more and 15 [mu] m or less and a D50 / 2 of 8% or more. The present invention also provides a glass powder having a hardness A of 1.5 or more as measured after being molded into a cylindrical press-molded body having a height of 5 mm. D50 / 2 is the ratio of volume accumulation when the volume accumulation in the particle size distribution measured by the laser diffraction / scattering method is 1 / 2 of the particle size of D50. The press-molded article is a molded article obtained by applying a pressure of 4 MPa, and the hardness (A) is a hardness measured using a Type A durometer specified in JISK 6253-2012.

The invention belongs to the technical field of durometer auxiliary measurement, and particularly relates to a durometer auxiliary measurement tool. The auxiliary measuring tool of the durometer comprises a placing seat and an auxiliary device, the auxiliary device comprises a hardness component, a supporting component and a pressure-bearing adapter, the placing seat is provided with a measuring platform, the hardness component is connected to the measuring platform of the placing seat, the supporting component is also connected to the measuring platform of the placing seat, and the pressure-bearing adapter is arranged on the supporting component. The pressure-bearing adaptive part is connected to the supporting component, the supporting component is used for driving the pressure-bearing adaptive part to ascend and descend, the hardness component is provided with a measuring part, the pressure-bearing adaptive part and the measuring part of the hardness component are vertically and oppositely arranged, and a camshaft workpiece is arranged between the pressure-bearing adaptive part and the measuring part of the hardness component. The pressure-bearing adapter is attached to the complex contour shape of the camshaft workpiece, and a stable customized supporting face is formed.

Portable hardness tester (1) for standard-compliant hardness testing according to the Rockwell, Vickers and / or Brinell methods, comprising: - a beak-like clamping system (2) for clamping an object to be measured, consisting of a hold-down device (26), a counter-holder (22) and a feed device (10, 12, 14, 16, 18, 20); - a unit (3) pivotably attached to the clamping system by means of a solid-state or leaf spring joint (20a), consisting of a spring body (36), a reference structure (34) and an indenter (48), as well as a measuring means (4) for determining the displacement of the indenter relative to the surface of the object to be measured; - a device (50, 50a, 50b) attached to the clamping system for applying a load to the spring body, which the spring body transmits to the indenter and thereby deforms the spring body relative to the reference structure;as well as a load determination device (5) which indicates the load exerted on the indenter by measuring the displacement of a point of the spring body relative to the reference structure;

This invention relates to the technical field of benchtop hardness testers, and more particularly to a benchtop hardness tester encompassing multiple rubber hardness testing methods. The tester includes a frame assembly, a material lifting assembly, a probe drive assembly, a guide and limiting assembly, a modular probe mounting assembly, and a safety locking assembly. The frame assembly includes a base plate and a guide rail mounting base fixed to the base plate. The material lifting assembly includes a material platform, which is vertically and flexibly mounted on the guide rail mounting base. This benchtop hardness tester, encompassing multiple rubber hardness testing methods, achieves compatibility with various rubber hardness testing methods such as Shore, IRHD, and capsule impingement through a modular probe mounting structure and integrated design. This eliminates the need to purchase multiple single-function instruments, significantly reducing user procurement and maintenance costs, saving laboratory space, and avoiding testing errors caused by repeated sample clamping across different devices, thus improving the consistency and accuracy of test results.

The utility model discloses a constant-temperature shore durometer, which comprises a mounting seat, a placing platform for placing a to-be-tested material is arranged above the mounting seat; a stand column is further arranged above the mounting seat; a cross beam is adjustably mounted on the upright post; a durometer clamping rod for mounting a durometer for pressing a to-be-detected material to detect the hardness of the to-be-detected material is slidably mounted on the cross beam in the vertical direction; a constant load weight is mounted above the hardness meter clamping rod in a sleeving manner; a locking screw for locking the mounting position of the constant load weight is mounted at the top of the hardness meter clamping rod in a threaded manner; an operating handle for controlling the lifting of the hardness meter clamping rod is rotationally mounted on the cross beam; a constant-temperature box is arranged in the mounting seat; and a heating wire for performing constant-temperature heating on the placing platform above the constant-temperature box is arranged in the constant-temperature box. The constant-temperature shore durometer disclosed by the utility model can reduce the influence of the change of environment temperature on the hardness of a material to be detected, so that the hardness detection precision of the material to be detected is ensured.

The utility model provides a surface hardness testing system which comprises a surface hardness meter and a base, the base comprises a first surface and a second surface opposite to the first surface, the first surface is a plane, and the second surface is provided with a V-shaped groove for accommodating an object to be tested. According to the surface hardness testing system disclosed by the utility model, the to-be-tested object is accommodated in the V-shaped groove of the base, so that the to-be-tested object can be better stabilized, and the probe of the surface hardness tester is more reliably contacted with the surface of the to-be-tested object; and the measurement accuracy of the surface hardness of the to-be-measured object, especially a small-diameter curved-surface object (such as a round roller or a round ball), is further improved.

A steel ball hardness detector comprises a detection table and durometers, the detection table is in a concave shape, the bottom face of the middle of the detection table is a detection station used for containing a to-be-detected steel ball, the durometers are placed on platforms on the two sides of the detection table, and the detection ends of the durometers are located on the bottom face and right face the detection station. The hardness meter magnetic switch is in magnetic attraction with the detection table platform after being turned on, a handle of the hardness meter is rotated clockwise, a pressure head of the hardness meter is in contact with the surface of the steel ball under the hydraulic action, dents with different diameters and depths are formed along with different loading forces of a dial plate, and corresponding hardness values are obtained through optical measurement. The field steel ball hardness detection is effectively realized.

The present application provides a device for testing the strength and plasticity of bulk and thin film metal materials, a collaborative robot is used to grab a sample tray from a sample library and send it to a designated position of a laser marking machine, move the sample tray from the laser marking machine to a sample table of a hardness tester, and put the sample tray after completing the sample test back to the sample library; the laser marking machine is used for laser marking treatment on the surface of the sample; the hardness tester is used for moving a light mirror to the laser marking position of the sample and completing sample focusing, and performing point-by-point indentation test on the sample and collecting indentation morphology; wherein, a tray base coupled and fixed with the sample tray is arranged on the sample table of the hardness tester; a plurality of sample trays are provided with a positioning device which can be coupled and fixed with the tray base on the sample table of the hardness tester; the sample library is used for storing a plurality of sample trays on which samples to be tested are placed. A control system is used to distribute corresponding control instructions to control other parts to work cooperatively until the sample test is completed.

The utility model relates to building detection instrument technical field, and disclose a kind of wall hardness detector for assembly type building engineering detection, including connecting rod and detector, the both ends of connecting rod are movably connected with detector, connecting rod has telescopic function, the spacing of both ends detector is adjusted, so that both ends detector is attached on the two sides of wall, realize the hardness detection of the two sides of wall simultaneously, detector is by protection cylinder and hardness gauge, protection cylinder is movably connected with hardness gauge, release button of hardness gauge is installed with connecting plate, both ends of connecting plate are fixed with side plate, sliding block is fixed on side plate. The right-angle plate installed on the both sides of protection cylinder is used as supporting structure, two abutting plates are attached on the edge of the detected position of wall surface, when pushing protection cylinder, the probe of hardness detector can be stably attached on wall surface, so compared with single handheld mode, the stability of wall hardness detection is effectively improved.

This invention provides a leveling device and method for Vickers hardness testing of high-hardness ceramic materials. The device aims to solve the problems of irregular indentations, inaccurate data, and indenter damage caused by insufficient machining precision leading to non-parallelism of the upper and lower surfaces in Vickers hardness testing. The device includes a base plate for fixing to the original sample stage of the hardness tester, a floating plate connected above the base plate via a ball joint assembly, and three leveling knobs arranged in a triangle, screwed into the floating plate with their lower ends resting against positioning holes in the base plate. By adjusting the leveling knobs, the floating plate can be driven to make omnidirectional micro-motion around the center of the ball joint, thereby directly adjusting the pitch and deflection angles of the sample to be tested, which is fixed to the upper surface of the floating plate. This invention has a compact and low-profile structure, does not interfere with the original function of the hardness tester, and ensures strict parallelism between the test surface and the indenter by "directly leveling the upper surface of the sample," significantly improving testing accuracy and reliability.