Fixing clamp for detecting ozone aging resistance of new rubber material test piece
An aging performance, fixing fixture technology, applied in the direction of analyzing materials, using stable tension/pressure to test material strength, measuring devices, etc. Electrical performance, affecting normal use functions, etc.
Inactive Publication Date: 2021-03-12
广州雏鸟信息科技有限公司
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Problems solved by technology
The high-temperature vulcanized silicone rubber material used as an accessory insulation will bear the effects of expansion tensile stress and compressive stress at the same time, resulting in changes in the microstructure of silicone rubber, which will affect the mechanical and electrical properties of polymer insulation materials.
[0003] Aging leads to a great decline in the performance of the material, affecting the normal use function
The traditional aging test device is mainly an aging scheme under single conditions such as light, heat, and temperature, and does not take into account the influence of mechanical stress such as stretching and extrusion on materials during use.
Method used
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[0030] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0031] In describing the present invention, it is to be understood that the terms "opening", "upper", "lower", "thickness", "top", "middle", "length", "inner", "surrounding" etc. Indicating orientation or positional relationship is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the components or elements referred to must have a specific orientation, be constructed and operated in a sp...
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The invention discloses a fixing clamp for detecting ozone aging resistance of a new rubber material test piece, and relates to the technical field of new rubber material development test equipment. The clamp comprises a fixed support and a plurality of clamp assemblies installed on the fixing support. The fixed support comprises a side plate, two mounting bases are symmetrically arranged at the two ends of the side plate respectively, a telescopic motor is arranged on each mounting base, a movable plate is arranged at the end of each telescopic motor, and a fixed rod is arranged on the side face, away from the side plate, of each movable plate; the two ends of any clamp assembly are installed in cooperation with the fixing rods on the two movable plates respectively. The clamp assembly comprises fixing bases located at the two ends and matched with the fixing rods, and two movable bases are arranged between the two fixing bases. The method is improved on the basis of a traditional aging mode, so that the sample can be aged under different tensile stress states; and according to actual test requirements, the distance between the two movable seats is adjusted, and the tensile stressborne by the test piece can be adjusted, so that the elongation of the test piece is changed.
Description
technical field [0001] The invention belongs to the technical field of rubber new material development and test equipment, and in particular relates to a fixing fixture for testing the anti-ozone aging performance of a rubber new material test piece. Background technique [0002] High-temperature vulcanized silicone rubber is widely used in the insulating parts of high-voltage cable terminals and joint accessories due to its excellent mechanical properties and good electrical properties. In order to ensure the efficient and safe operation of the prefabricated cable terminal, a certain interface stress needs to be maintained between the silicone rubber prefabricated stress cone, the epoxy resin sleeve, and the main insulation of the cable. The interface stress of prefabricated cable accessories is mainly composed of two parts: the clamping force generated by the expansion of the silicone rubber stress cone and the mechanical force of the spring compression device. During the...
Claims
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IPC IPC(8): G01N3/04G01N3/08G01N17/00
CPCG01N3/04G01N3/08G01N17/00G01N2203/0003G01N2203/0017G01N2203/005G01N2203/0252G01N2203/0282G01N2203/0423
Inventor 朱艺锚刘雪花
Owner 广州雏鸟信息科技有限公司