Waterproof roll tensile test sample preparation device
By designing a waterproof coil tensile test sample preparation device, using sample templates, clamping joints and gauge joints, the problem of long manual cutting time and low accuracy in the prior art is solved, and fast and accurate sample preparation is achieved, which improves the test efficiency and reliability of results.
Patent Information
- Application Number
- CN202422121067.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-30
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-30
AI Technical Summary
In the existing tensile test methods of waterproof coils, the preparation and cutting of rectangular specimens usually relies on manual ruler positioning, resulting in a long time, low craftsmanship and inaccurate cutting size, which affects the accuracy of the test results.
A waterproof coil tensile test sample preparation device is designed, including a sample template, clamping joint and gauge joint. The frame shape of the sample template is determined according to the shape of the target test sample. A midline seam is provided at the center, and the clamping seam and gauge seam are used to mark the clamping position and the extensometer installation position.
Through this device, samples that meet the test requirements can be cut quickly and accurately, which improves the accuracy of test speed and sample size and ensures the reliability of test results.
Smart Images
Figure CN223021763U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sample preparation, in particular to a waterproof coiled material tensile test sample preparation device. Background Art
[0002] Waterproofing membrane is one of the most important materials in engineering construction. It is used to prevent water penetration and protect buildings from water damage. It can effectively waterproof the roof, basement, bathroom and other areas of the building. The tensile strength and elongation obtained from the tensile test are important indicators of its quality and performance. The tensile test requires cutting at least 5 specimens in the longitudinal and transverse directions on a representative sample without folds, creases or wrinkles. Method A uses rectangular specimens. The size of each specimen is (50±0.5)mm×200mm, the specimen clamping spacing is 120mm, and the marking spacing is 100±5mm.
[0003] When clamping the specimen, align the center line of the specimen length with the center line of the test machine fixture, and in order to prevent any relaxation of the specimen, it is recommended to load a force not exceeding 5N for pre-tensioning. After the specimen is clamped and the extensometer is installed, start the tensile tester, the constant speed of the fixture movement is (100±10)mm / min, and the load is applied until the specimen breaks.
[0004] At present, the preparation and cutting of rectangular specimens in the tensile test method A generally adopts manual measurement and positioning, which not only takes a long time and has low efficiency, but also has inaccurate cutting dimensions, affecting the accuracy of the test results. Utility Model Content
[0005] The technical problem to be solved by the utility model is: in view of the above-mentioned existing problems, a device for preparing samples for tensile test of waterproof coiled material is provided.
[0006] The technical solution adopted by the utility model is: a waterproof coiled material tensile test sample preparation device, characterized in that it includes:
[0007] A sample template, wherein the frame shape of the sample template is determined by the shape of the target test sample, a centerline seam is provided in the middle of the sample template, and the sample template is symmetrical along the centerline seam;
[0008] A clamping seam is provided on the sample template, the clamping seam is parallel to the center seam and symmetrically arranged along the center seam, and the clamping seam is used to mark the position of the clamp of the tensile testing machine to clamp the sample;
[0009] A gauge seam is provided on the sample template, the gauge seam is located between the clamping seam and the centerline seam, the gauge seam is parallel to the centerline seam and is symmetrically arranged along the centerline seam, and the gauge seam is used to mark the installation position of the extensometer.
[0010] By means of the above technical means, the specimen template is placed on the representative test sample, and the test sample is quickly segmented according to the shape of the outer frame of the specimen template. The clamping position of the fixture of the tensile testing machine for clamping the specimen is depicted by the clamping slot, and the installation position of the extensometer is depicted by the gauge slot. Therefore, by using this device, not only the clamping and installation accuracy can be improved, but also the preparation efficiency of the test sample can be improved.
[0011] In some embodiments, the shape of the target test sample is rectangular, the shape of the specimen template is rectangular, and the center line slot is provided at the 1 / 2 position of the long side of the specimen template and is perpendicular to the long side.
[0012] In some embodiments, the size of the specimen template is determined by the size of the target test sample, and the spacing between the clamping slot and the gauge slot is determined by the test requirements of the target test sample.
[0013] In some embodiments, the length of the specimen template is 200 mm, the width is 50 mm, and the thickness is 2 mm.
[0014] In some embodiments, the spacing between the clamping slots is 120 mm, the spacing between the gauge slots is 100 mm, and the widths of the center line slot, the clamping slot and the gauge slot are all 1 mm.
[0015] In some embodiments, the specimen template is made of plexiglass or plastic.
[0016] In some embodiments, a handle is provided on the specimen template.
[0017] The beneficial effects of the present utility model are as follows:
[0018] 1. By determining the frame shape of the specimen template according to the shape of the target test sample, the specimen template can be used to quickly cut out the specimen that meets the test requirements from the representative test sample. Compared with the traditional manual ruler measurement and positioning, a large amount of cutting time is saved. And the clamping line depicted according to the clamping slot can facilitate the quick calibration of the clamping position of the tensile testing machine, and the gauge line depicted according to the gauge slot can facilitate the determination of the installation position of the extensometer. By using this device, the test speed is increased and the accuracy of the sample size is ensured. Description of the Drawings
[0019] Figure 1 It is a schematic structural diagram of the present application.
[0020] Description of the reference numerals:
[0021] 1. Specimen template; 2. Center line slot; 3. Clamping slot; 4. Gauge slot; 5. Handle.
[0022] This specification includes references to "one embodiment" or "embodiments". The appearances of the phrases "in one embodiment" or "in embodiments" do not necessarily refer to the same embodiment. Specific features, structures, or characteristics may be combined in any suitable manner consistent with the present disclosure.
[0023] "Comprising" is an open - ended term. As used in the appended claims, this term does not exclude additional structures or steps.
[0024] "First", "second", etc. As used herein, these terms serve as labels for the nouns preceding them and do not imply any type of ordering (e.g., spatial, temporal, logical, etc.). Detailed Description
[0025] To enable those skilled in the art to better understand the solution of the present utility model, the technical solution of the present utility model will be further described below in conjunction with specific embodiments.
[0026] Embodiment 1:
[0027] Combined with Figure 1 As shown, this embodiment is a device for preparing a waterproof coiled material tensile test sample, including a specimen template 1, a clamping seam 3, and a gauge length seam 4. The frame shape of the specimen template 1 is determined by the shape of the target test sample. A center line seam 2 is provided at the middle position of the specimen template 1, and the specimen template 1 is symmetric along the center line seam 2. The clamping seam 3 penetrates through the specimen template 1. The clamping seam 3 is parallel to the center line seam 2 and is symmetrically arranged on both sides of the center line seam 2. The clamping seam 3 is used to mark the position where the fixture of the tensile testing machine clamps the specimen. Two gauge length seams 4 penetrate through the specimen template 1. The gauge length seams 4 are parallel to the center line seam 2. The two gauge length seams 4 are respectively arranged between the corresponding clamping seam 3 and the center line seam 2, and the two gauge length seams 4 are symmetrically arranged along the center line seam 2. The gauge length seams 4 are used to mark the installation position of the extensometer.
[0028] In some embodiments, in this embodiment, the tensile test method A uses a rectangular specimen. The shape of the target test sample is rectangular, the shape of the specimen template 1 is rectangular, and the center line seam 2 is provided at the 1 / 2 position of the long side of the specimen template 1 and is perpendicular to the long side. Specifically, the length of the specimen template 1 is 200 mm, the width is 50 mm, and the thickness is 2 mm.
[0029] In some embodiments, the size of the specimen template 1 is determined by the size of the target test sample, the spacing between the clamping seam 3 and the gauge length seam 4 is determined by the test requirements of the target test sample, and both ends of the center line seam 2, the clamping seam 3, and the gauge length seam 4 do not intersect with the long side of the specimen template 1. Specifically, the spacing between the two clamping seams 3 is 120 mm, the spacing between the two gauge length seams 4 is 100 mm, and the widths of the center line seam 2, the clamping seam 3, and the gauge length seam 4 are all 1 mm.
[0030] In some embodiments, the specimen template 1 is made of plexiglass or plastic.
[0031] In some embodiments, a handle 5 is provided at the middle position of the specimen template 1.
[0032] Embodiment 2:
[0033] This embodiment is a method of using a device for preparing a waterproof coiled material tensile test sample. In this embodiment, a rectangular specimen is used according to tensile test method A, so the specimen template 1 is a square plate, and there is a center line seam 2, two clamping seams 3, and two gauge length seams 4 on the square plate.
[0034] First, place the taken representative waterproof coiled material sample flat on the workbench. The specimen should be flat and have no obvious appearance defects such as creases, holes, stains, etc. Place this device flat on the representative sample, hold the handle 5 with one hand, and hold a marker pen in the other hand to draw lines along the four sides of the square plate, then draw two clamping lines along the two clamping seams 3, two gauge length lines along the two gauge length seams 4, and a center line along the center line seam 2.
[0035] Secondly, move this device away and use scissors or a craft knife to cut the sample along the drawn frame line of the square plate.
[0036] Then, install the cut sample specimen on the tensile testing machine, and use the jaws of two clamps to clamp the specimen along the lines drawn by the clamping lines. When clamping the specimen, try to make the two gauge length lines coincide with the edges of the upper and lower clamp jaws as much as possible, and then install the extensometer at the two gauge length lines.
[0037] This device can quickly and accurately cut the tensile test sample, greatly improving the test speed, ensuring the accurate size of the sample, and ensuring the authenticity and reliability of the test results.
[0038] The above are all the preferred embodiments of the present utility model, and the protection scope of the present utility model is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present utility model should be covered within the protection scope of the present utility model.
Claims
1. A waterproof coiled material tensile test sample preparation device, characterized in that: include: A sample template (1), wherein the frame shape of the sample template (1) is determined by the shape of the target test sample, a centerline seam (2) is provided in the middle of the sample template (1), and the sample template (1) is symmetrical along the centerline seam (2); A clamping seam (3) is provided on the sample template (1) through the clamping seam (3) and is parallel to the center seam (2) and symmetrically arranged along the center seam (2). The clamping seam (3) is used to mark the position of the clamp of the tensile testing machine for clamping the sample; A gauge seam (4) is provided on the sample template (1) and is located between the clamping seam (3) and the centerline seam (2). The gauge seam (4) is parallel to the centerline seam (2) and is symmetrically arranged along the centerline seam (2). The gauge seam (4) is used to mark the installation position of the extensometer.
2. A waterproof coiled material tensile test sample preparation device according to claim 1, characterized in that: The target test sample is in the shape of a rectangle, the sample template (1) is in the shape of a rectangle, and the centerline seam (2) is located at 1 / 2 of the long side of the sample template (1) and is perpendicular to the long side.
3. A waterproof coiled material tensile test sample preparation device according to claim 2, characterized in that: The size of the sample template (1) is determined by the size of the target test sample, and the spacing between the clamping slit (3) and the gauge slit (4) is determined by the test requirements of the target test sample.
4. A waterproof coiled material tensile test sample preparation device according to claim 3, characterized in that: The sample template (1) has a length of 200 mm, a width of 50 mm and a thickness of 2 mm.
5. The waterproof coiled material tensile test sample preparation device according to claim 3, characterized in that: The spacing of the clamping seams (3) is 120 mm, the spacing of the gauge seams (4) is 100 mm, and the widths of the centerline seams (2), the clamping seams (3) and the gauge seams (4) are all 1 mm.
6. The waterproof coiled material tensile test sample preparation device according to claim 1, characterized in that: The sample template (1) is made of organic glass or plastic.
7. A waterproof coiled material tensile test sample preparation device according to any one of claims 1 to 6, characterized in that: The sample template (1) is provided with a handle (5).