A standard sample preparation method for checking the uniformity of steel for hole reaming and the performance of punching and reaming devices
A technology of performance and standard samples, which is applied in the preparation of test samples, the use of stable tension/compression to test the strength of materials, and measuring devices. Unable to use the hole reaming test for long-term stability quality control and other issues, to achieve the effect of improving stability and pass rate, stabilizing test results, and reducing scrap rate
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Embodiment 1
[0037] A method for preparing a standard sample for checking the uniformity of steel for hole reaming and the performance of punching and reaming devices, the steps of which are:
[0038] 1) Select the steel plate for preparing the standard sample; it should be noted that the steel coil head is not taken within the 5m length range, and the two sides of the standard sample steel plate should be cut off to a width of 100mm;
[0039] 2) Preparation of the steel plate tensile test sample: at the four edge positions on the selected steel plate, cut 2 tensile test samples on each side to carry out room temperature tensile test samples, and mark them;
[0040]The remaining position of the selected steel plate is used to prepare samples for the hole expansion test. The number of samples for the hole expansion test is 60; each size is a 90mm×90mm square block, and it is marked on the steel plate where it is located with a high temperature resistant oil-based pen The location of the row...
Embodiment 2
[0058] A method for preparing a standard sample for checking the uniformity of steel for hole reaming and the performance of punching and reaming devices, the steps of which are:
[0059] 1) Select the steel plate for preparing the standard sample; it should be noted that the steel coil head is not taken within the 5m length range, and the two sides of the standard sample steel plate should be cut off to a width of 100mm;
[0060] 2) Preparation of steel plate tensile test samples: at the four edge positions on the selected steel plate, cut 2 tensile test samples on each side for room temperature tensile test samples, and mark them;
[0061] The remaining position of the selected steel plate is used to prepare samples for the hole expansion test. The number of samples for the hole expansion test is 80; each size is a 100mm×100mm square block, and it is marked on the steel plate where it is located with a high temperature resistant oil-based pen The location of the row and colu...
Embodiment 3
[0080] A method for preparing a standard sample for checking the uniformity of steel for hole reaming and the performance of punching and reaming devices, the steps of which are:
[0081] 1) Select the steel plate for preparing the standard sample; it should be noted that the steel coil head is not taken within the 5m length range, and the two sides of the standard sample steel plate should be cut off to a width of 100mm;
[0082] 2) Preparation of the steel plate tensile test sample: at the four edge positions on the selected steel plate, cut 2 tensile test samples on each side to carry out room temperature tensile test samples, and mark them;
[0083] The remaining position of the selected steel plate is used to prepare samples for the hole expansion test. The number of samples for the hole expansion test is 65; each size is a 120mm×120mm square block, and the high temperature resistant oil-based pen is used to mark the steel plate where it is located. The position of the ro...
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