47 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 metal material hardness detection device comprises a bottom plate, a first supporting plate is fixedly mounted at the top of the bottom plate, and two conveying belts are rotationally mounted on the two sides of the first supporting plate correspondingly; the sorting mechanism is used for separating the metal materials with the hardness reaching the standard and the metal materials with the hardness not reaching the standard through detection; the sorting mechanism comprises a second supporting plate, the second supporting plate is fixedly mounted at the top of the second supporting plate, and connecting plates are fixedly mounted on the two sides of the second supporting plate; a connecting block drives a fixing block to move, a second electric telescopic rod extends, an output shaft of a fourth motor drives a connecting rod to rotate, the connecting rod is matched with a third electric telescopic rod to enable a Leeb hardness tester to be located at the top of a metal material, and the Leeb hardness tester detects the hardness of the metal material. And qualified metal materials are carried to the top of the initial conveying belt by the fixing blocks, and unqualified metal materials are carried to the top of the other conveying belt by the fixing blocks.

The invention discloses a precise position measurement assistive device for a durometer, and relates to the technical field of auxiliary devices for durometer measurement, the precise position measurement assistive device comprises a mounting base and a sample positioning cylinder, the bottom of the mounting base is provided with a mounting clamping groove, and the precise position measurement assistive device further comprises a measurement position positioning mechanism and a position adjusting mechanism, the measurement position positioning mechanism comprises a positioning steel needle and an adjustable lifting alignment mechanism, and the positioning steel needle is used for positioning a hardness measurement position on the test piece. The positioning steel needle slides along the guide rail through the sliding seat, the first telescopic square rod and the second telescopic square rod stretch out and draw back, the positioning steel needle can be conveniently and rapidly aligned with a measurement position marked on a test piece, and the positioning steel needle and the conical positioning guide sleeve are longitudinally and coaxially aligned, so that the conical positioning guide sleeve is synchronously aligned with the measurement position; and the detection pressure head can be conveniently and quickly inserted into the central position of the conical positioning guide sleeve by means of the guide of the inclined surface on the inner side of the conical positioning guide sleeve, so that the detection pressure head is accurately aligned with the measurement position.

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 utility model discloses a transmission mechanism of a large workpiece durometer. The transmission mechanism comprises a base; the portal frame is arranged at the top of the base; the lifting mechanism is connected with the portal frame and provides driving force for Z-axis movement; the cross beam is connected with the output end of the lifting mechanism and is driven by the lifting mechanism to ascend and descend; the first moving mechanism is connected with the cross beam and provides driving force for Y-axis movement; the mounting seat is connected with the output end of the first moving mechanism; the moving platform is arranged on the base in a guiding and sliding manner; the second moving mechanism is connected with the base and the moving platform and drives the moving platform to move on the base along the X axis. The three-dimensional motion control mechanism ensures that the durometer can comprehensively and accurately detect each part of a large-sized workpiece, and meets the requirement of a complex workpiece on the aspect of hardness detection.

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.

To provide a prediction method for predicting hardness at the time of quenching capable of improving accuracy of a hardness prediction formula by dispensing with simulation software because of the prediction formula dispensing with a martensite ratio.SOLUTION: In a prediction method for predicting the hardness at the time of quenching, an austenite ratio is calculated from the heating temperature and the coefficient corresponding to additive elements (S11), and the hardness at the time of quenching is calculated from the austenite ratio, the cooling temperature, the coefficient corresponding to the additive elements and the hardness of a base metal (S12).SELECTED DRAWING: Figure 1

The utility model discloses a small-specification hardness sample auxiliary device and relates to the technical field of hardness meters. The device comprises a test end and a rigid objective table, and is characterized in that a test pressure head is arranged at the front end of the test end, the lower end of the test pressure head is in clearance fit with the rigid objective table, a circular auxiliary iron plate is placed on the rigid objective table, an auxiliary through hole is formed in the circular auxiliary iron plate, and a side protection frame is mounted at the outer end of the circular auxiliary iron plate; and magnets are arranged at the bottoms of the side edge protection frames. The auxiliary device has the beneficial effects that the auxiliary device can be used only by putting a small-specification sample into a corresponding hole during operation, the operation is convenient, unsafe factors that the sample flies out to hurt people can be effectively eliminated, the safety of testers can be ensured only when the sample is in a controllable range, a gap is reserved around the sample, and the safety of the testers is ensured. And the bottom is in contact with a rigid objective table of the durometer, so that the accuracy of a sample result is ensured.

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 present invention provides a measuring device for measuring the hardness of a rotor blade groove. The measuring device includes: a hardness meter for measuring hardness; a driver for pressing the hardness meter against a measurement object; a camera for photographing an image of a measurement range in the measurement object measured by the hardness meter; a moving mechanism for moving the hardness meter and the camera to a desired position within the measurement range; and a fixing member for fixing the moving mechanism to the measurement object.

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.

A hose with a metal part has a hose 2, a metal part 3 and a sleeve 4. One end portion of the hose 2 is connected to the metal piece cylindrical portion 31 of the metal piece 3. The sleeve (4) covers the hose (2) and the metal tubular section (31). The sleeve (4) has a first cylindrical section (41) that covers the fitting cylindrical section (31) and a second cylindrical section (42) that covers the hose (2). The diameter of the second cylindrical part 42 is smaller than that of the first cylindrical part 41. The second cylindrical part 42 has a length of 8 mm or more. The thickness of the second cylindrical portion 42 is 1 mm or more. The hardness of the second cylindrical part 42 is 70-95 (inclusive) as measured by a Type A durometer in accordance with JIS K6253.

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 utility model discloses a Rockwell hardness tester center point calibration device, and belongs to the technical field of material hardness measurement, the technical scheme is characterized in that the Rockwell hardness tester center point calibration device comprises a sliding block, a connecting assembly and a calibration assembly, an objective table is provided with a sliding groove with an annular cross section, one end of the sliding block extends into the sliding groove and is in sliding connection with the objective table, and the other end of the sliding block extends into the connecting assembly; one end of the connecting assembly is connected with the sliding block, and the other end is connected with the calibration assembly; the calibration assembly comprises a mounting sleeve and a graduated scale, the mounting sleeve is connected with the connecting assembly, the graduated scale is horizontally arranged, the graduated scale is slidably connected with the mounting sleeve, and the graduated scale is not lower than the top of the objective table; the sample comprises a first edge and a second edge, the first edge and the second edge are arranged at an angle, and the calibrated scale can be used for respectively calibrating the distance between the mounting sleeve and the first edge and the distance between the mounting sleeve and the second edge, so that the calibration of the sample is realized, and the effect of more accurately finding a plurality of central points of the sample is achieved.

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.