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Hefei electronic universal tensile testing machine shares tips for doing various tear tests_Hefei Boyi Instrument Equipment Co., Ltd.

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Hefei electronic universal tensile tester shares tips for doing various tear tests

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Hefei electronic universal tensile tester shares tips for doing various tear tests

万能试验机 在现今的社会工业发展中有着不可代替的作用,而电子万能拉力试验机 的撕裂实验是为了求出撕裂强度值,使用电子万能 试验机 对有割口或无割口的橡胶制品在规定的速度下进行连续拉伸,直到橡胶式样被撕断为止,这样即可得到撕裂强度值。 The electronic universal testing machine has an irreplaceable role in the development of today's social industry, and the tear test of the electronic universal tensile testing machine is to obtain the tear strength value. The electronic universal testing machine is used for the test with or without the cut. The rubber product is continuously stretched at a predetermined speed until the rubber pattern is torn, so that the tear strength value can be obtained. The tear strength value is generally related to the sample shape, tensile speed, and test temperature. 合肥电子万能拉力试验机分享做各种撕裂试验小窍门。 Today I will give you a brief introduction to the Hefei electronic universal tensile testing machine to share tips for doing various tear tests.

选用无割口直角形试样:无割口直角形试样是撕裂开始和撕裂扩展的综合。 1. Select the right-angled specimen without cut: The right-angled specimen without cut is a combination of the beginning of tearing and the expansion of tearing. The stress at the right-angle point was increased enough to cause initial tearing, and then the stress was further increased until the specimen was torn. However, only the total force required to break the specimen can be determined. Therefore, the measured force cannot be decomposed into two component forces that produce tear initiation and tear propagation.
电子万能试验机 选用新月形试样:新月形试样是将试样预先割口,测定其扩展撕裂所需的力,试样割口、测量和试验应连续进行,如果不能连续进行试验时,应根据具体情况,将试样在规定的温试下保存至试验。 2. The crescent-shaped sample is selected for the electronic universal testing machine : The crescent-shaped sample is a slit of the sample in advance, and the force required for its extended tearing is measured. The slit, measurement and test of the sample should be performed continuously. When the test is performed continuously, the sample should be stored under the specified temperature test until the test. The interval between the cut and the test should not exceed 24 hours, and when the aging test is performed, the cut and the cut should be performed after aging. The electronic universal testing machine should pay attention to making samples. The samples should be cut from test pieces with uniform thickness. The thickness of the test piece is (2.0 ± 0.2) mm. The test piece can be molded or cut and polished by the product.

3. Select trouser-shaped samples: The trouser-shaped samples are not sensitive to the length of the incision, and the cuts of the other two samples require strict control. In addition, the obtained results are more likely to be related to the basic tearing capacity of the material, and are less affected by the elongation stress (generally ignored), and the tear propagation speed is directly related to the gripper stretching speed.
4. The electronic universal testing machine uses a cut-off right-angled specimen: a cut-off right-angled specimen is a specimen that is cut in advance to determine the force required for its extended tearing, but it should be noted that the direction of the tearing cutout It should be consistent with the rolling direction, because the expansion speed is not directly related to the stretching speed, and has a relationship with the cutting method of the sample and the rolling direction.
合肥电子万能拉力试验机分享做各种撕裂试验小窍门 小知识,希望可以给大家带来帮助,如果你想要了解更多试验机详细信息,欢迎质询本公司。 The above is the Hefei electronic universal tensile testing machine introduced to everyone . Share the tips of making various tearing tests . I hope it can help everyone. If you want to know more about the testing machine, please contact us.

Hefei Boyi Instrument Equipment Co., Ltd. Ma'anshan tensile testing machine, Suzhou tensile testing machine, Huaibei tensile testing machine, Fuyang tensile testing machine, Bengbu tensile testing machine, Huainan tensile testing machine, Luzhou tensile testing machine, Liu'an tensile testing machine, Chaohu Tensile testing machine, Wuhu tensile testing machine, Luzhou tensile testing machine, Anqing tensile testing machine, Chizhou tensile testing machine, Tongling tensile testing machine, Xuancheng tensile testing machine, Huangshan tensile testing machine, and other cities around Anhui. On-site, on-site training guidance!

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