Device and method for obtaining strength of valve made of a105 material through hardness

Abstract

The present application relates to the technical field of valve hardness testing, and particularly relates to a device and method for obtaining A105 material valve strength through hardness; the technical scheme: a device and method for obtaining A105 material valve strength through hardness, comprising a valve strength testing method and an official hardness testing method; compared with a traditional A105 material valve strength measuring device, the valve structure needs to be damaged, a sample is taken out from the valve body through mechanical processing, then the yield strength and tensile strength of the material are obtained through inspection, and the valve product is easily damaged and wasted; the A105 material valve strength measuring device indirectly obtains the strength of the valve through hardness testing, does not need to damage the valve structure, can quickly and accurately obtain the strength information of the valve, greatly improves the detection efficiency, and does not cause damage to the valve structure.

Description

Technical Field

[0001] This invention relates to the field of valve hardness testing technology, and in particular to an apparatus and method for obtaining the strength of A105 material valves by hardness testing. Background Technology

[0002] A105 material valves are widely used in oil and gas fields. During use, because the valves are in service, the strength of the valve material cannot be measured, which makes it impossible to verify the strength characteristics of the valve products during the inspection of in-service equipment, resulting in certain safety hazards for in-service valves.

[0003] Existing valve strength measurement devices for A105 material require damaging the valve structure, machining the sample from the valve body, and then testing to obtain the yield strength and tensile strength of the material, which can easily lead to damage and waste of valve products.

[0004] To address the problem that existing A105 material valve strength measuring devices easily cause damage and waste to valve products, this new A105 material valve strength measuring device indirectly obtains the valve strength through hardness testing. It does not require damaging the valve structure, and can quickly and accurately obtain the valve's strength information, greatly improving testing efficiency without causing damage to the valve structure. Summary of the Invention

[0005] To overcome the problem that existing A105 material valve strength measurement devices require damaging the valve structure, removing the sample from the valve body through machining, and then testing to obtain the material's yield strength and tensile strength, it is easy to cause damage and waste to valve products.

[0006] The technical solution of this invention is: a method for obtaining the strength of an A105 material valve by hardness, comprising the following methods: S11: First, prepare and calibrate the device to ensure it can operate normally; S12: Treat the valve surface to prevent dirt residue from affecting the inspection operation; S13: Install and debug the pressure head to ensure stability and ease of operation; S14: Pre-testing and calibration should be performed before formal testing; S15: Perform a formal hardness test on the valve's test area; S16: Record and process the test results; S17: Calculate valve strength using the formula; S18: Verify and check the calculation results.

[0007] Preferably, the device preparation and calibration process includes the following steps: S21; Ensure the testing device, including but not limited to the force loading component, force measuring component, test indenter, indentation depth measuring system, frame, matching arc-shaped clamp, matching chain clamp, display panel, and external power cord, is intact and undamaged; S22: Preheat and calibrate the device to ensure the accuracy of the force loading and measurement system; S23: Check the wear condition of the test head. If a malfunction is found, it needs to be replaced or repaired.

[0008] Preferably, the valve surface treatment includes the following steps: S31: Use 100# sandpaper to preliminarily polish the valve part to be tested to remove the surface oxide layer and stains; S32: Use 240#, 400#, 800#, and 1200# sandpaper in sequence for fine sanding until the surface is smooth and free of scratches; S33: Clean the polished surface with organic solvents such as alcohol or acetone to remove residual abrasive and stains.

[0009] Preferably, the installation and commissioning of the pressure head includes the following steps: S41: Select the appropriate test head and fixture according to the shape and size of the valve part to be tested; S42: Install the indenter onto the device and adjust its position to ensure that the tip of the indenter is 2mm to 3mm above the sample plane; S43: Use matching arc-shaped clamps or chain clamps to fix the valve sample to the device to ensure stability and ease of operation.

[0010] Preferably, the pre-testing and calibration process includes the following steps: S51: Before the formal test, conduct several pre-tests to familiarize yourself with the operating procedures and adjust the device parameters; S52: Observe and record the results of each pre-test until the error of the measured result is no greater than 5 HBW; S53: Based on the preliminary test results, make necessary fine adjustments to the device to ensure the accuracy of the test results.

[0011] Preferably, the following steps are included when conducting a formal hardness test: S61: Start the device to begin hardness testing of the valve's test area; S62: Observe and record parameters such as force loading, force measurement, and compression depth during the test; S63: Ensure there is no abnormal noise or vibration during the test to avoid affecting the test results.

[0012] Preferably, the data recording and processing includes the following steps: S71: Record the hardness values ​​obtained from the test in a dedicated data table; S72: The three measurement results are averaged to obtain the final hardness value.

[0013] Preferably, when calculating the valve strength using the formula, the following steps are included: S81: Substitute the measured hardness value into the material yield strength formula Rp0.2=178.3+1.06*HBW and the material tensile strength formula Rm=346.2+1.42*HBW; S82: The yield strength Rp0.2 and tensile strength Rm of the valve made of A105 material were calculated; S83: Record the calculation results in a dedicated report or data table.

[0014] Preferably, the verification and validation of the results include the following steps: S91: Verify the calculation results to ensure there are no calculation errors or data input errors; S92: Compare the calculation results with known strength data of valves made of the same material to verify their rationality and accuracy; S93: Prepare a detailed test report based on the test results and calculation results; S94: Archive and save the test report for future review and comparison.

[0015] A device for obtaining the strength of an A105 material valve by hardness measurement includes a force loading component, a force measuring component, a test head, a pressure depth measuring system, a frame, a matching arc-shaped clamp, a matching chain clamp, a display panel, and an external power cord. The force loading component has a force measuring component at its bottom end, the pressure depth measuring system is located on the bottom surface of the force measuring component, the test head is located at the bottom end of the pressure depth measuring system, the frame is located on the outside of the force measuring component, the matching arc-shaped clamp is located at the bottom end of the frame, the matching chain clamp is located below the matching arc-shaped clamp, the display panel is located on one side of the force loading component, and the external power cord is located on the other side of the force loading component.

[0016] The beneficial effects of this invention are: 1. Compared to traditional A105 material valve strength measuring devices, which require damaging the valve structure and machining samples from the valve body to obtain the yield strength and tensile strength of the material, easily causing damage and waste to the valve product, this A105 material valve strength measuring device indirectly obtains the valve strength through hardness testing. It does not require damaging the valve structure, can quickly and accurately obtain the valve strength information, greatly improves the testing efficiency, and does not damage the valve structure. 2. The strength of the valve can be indirectly obtained through hardness testing without damaging the valve structure. At the same time, the device integrates multiple systems such as force loading, force measurement, test head, and pressure depth measurement, which can accurately perform hardness testing. In addition, the testing device is also equipped with matching arc-shaped clamps and chain clamps, which can adapt to valve samples of different shapes and sizes, improving the flexibility and applicability of the test. Attached Figure Description

[0017] Figure 1 The diagram illustrates a process flow of a method for obtaining the strength of an A105 material valve by hardness according to the present invention. Figure 2 The diagram shown is a three-dimensional structural schematic of a device for obtaining the strength of an A105 material valve by hardness according to the present invention. Figure 3 The diagram shown is a plan view of a device for obtaining the strength of an A105 material valve by hardness according to the present invention. Explanation of reference numerals in the attached drawings: 1. Force loading component; 2. Force measuring component; 3. Test indenter; 4. Indentation depth measuring system; 5. Frame; 6. Matching arc-shaped clamp; 7. Matching chain clamp; 8. Display panel; 9. External power cord. Detailed Implementation

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Please see Figure 1 This invention provides an embodiment: a method for obtaining the strength of an A105 material valve by hardness, comprising the following methods: S11: First, prepare and calibrate the device to ensure it can operate normally; S12: Treat the valve surface to prevent dirt residue from affecting the inspection operation; S13: Install and debug the pressure head to ensure stability and ease of operation; S14: Pre-testing and calibration should be performed before formal testing; S15: Perform a formal hardness test on the valve's test area; S16: Record and process the test results; S17: Calculate valve strength using the formula; S18: Verify and check the calculation results.

[0020] Preferably, the device preparation and calibration process includes the following steps: S21: Ensure the testing device, including but not limited to the force loading component 1, force measuring component 2, test indenter 3, indentation depth measuring system 4, frame 5, matching arc-shaped clamp 6, matching chain clamp 7, display panel 8, and external power cord 9, is intact and undamaged; S22: Preheat and calibrate the device to ensure the accuracy of the force loading and measurement system; S23: Check the wear condition of the test head. If a malfunction is found, it needs to be replaced or repaired.

[0021] Preferably, the valve surface treatment includes the following steps: S31: Use 100# sandpaper to preliminarily polish the valve part to be tested to remove the surface oxide layer and stains; S32: Use 240#, 400#, 800#, and 1200# sandpaper in sequence for fine sanding until the surface is smooth and free of scratches; S33: Clean the polished surface with organic solvents such as alcohol or acetone to remove residual abrasive and stains.

[0022] Preferably, the installation and commissioning of the pressure head includes the following steps: S41: Select the appropriate test head and fixture according to the shape and size of the valve part to be tested; S42: Install the indenter onto the device and adjust its position to ensure that the tip of the indenter is 2mm to 3mm above the sample plane; S43: Use matching arc-shaped clamps or chain clamps to fix the valve sample to the device to ensure stability and ease of operation.

[0023] Preferably, the pre-testing and calibration process includes the following steps: S51: Before the formal test, conduct several pre-tests to familiarize yourself with the operating procedures and adjust the device parameters; S52: Observe and record the results of each pre-test until the error of the measured result is no greater than 5 HBW; S53: Based on the preliminary test results, make necessary fine adjustments to the device to ensure the accuracy of the test results.

[0024] Preferably, the following steps are included when conducting a formal hardness test: S61: Start the device to begin hardness testing of the valve's test area; S62: Observe and record parameters such as force loading, force measurement, and compression depth during the test; S63: Ensure there is no abnormal noise or vibration during the test to avoid affecting the test results.

[0025] Preferably, the data recording and processing includes the following steps: S71: Record the hardness values ​​obtained from the test in a dedicated data table; S72: The three measurement results are averaged to obtain the final hardness value.

[0026] Preferably, when calculating the valve strength using the formula, the following steps are included: S81: Substitute the measured hardness value into the material yield strength formula Rp0.2=178.3+1.06*HBW and the material tensile strength formula Rm=346.2+1.42*HBW; S82: The yield strength Rp0.2 and tensile strength Rm of the valve made of A105 material were calculated; S83: Record the calculation results in a dedicated report or data table.

[0027] Preferably, the verification and validation of the results include the following steps: S91: Verify the calculation results to ensure there are no calculation errors or data input errors; S92: Compare the calculation results with known strength data of valves made of the same material to verify their rationality and accuracy; S93: Prepare a detailed test report based on the test results and calculation results; S94: Archive and save the test report for future review and comparison.

[0028] Please see Figure 2-3 In this embodiment, a device for obtaining the strength of an A105 material valve by hardness includes a force loading component 1, a force measuring component 2, a test pressure head 3, a pressure depth measuring system 4, a frame 5, a matching arc-shaped clamp 6, a matching chain clamp 7, a display panel 8, and an external power cord 9. The force loading component 1 is provided with the force measuring component 2 at its bottom end. The pressure depth measuring system 4 is provided on the bottom surface of the force measuring component 2. The test pressure head 3 is provided at the bottom end of the pressure depth measuring system 4. The frame 5 is provided on the outside of the force measuring component 2. The matching arc-shaped clamp 6 is provided at the bottom end of the frame 5. The matching chain clamp 7 is provided below the matching arc-shaped clamp 6. The display panel 8 is provided on one side of the force loading component 1, and the external power cord 9 is provided on the other side of the force loading component 1.

[0029] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A method for obtaining the strength of an A105 material valve by hardness; characterized in that: The methods include the following: S11: First, prepare and calibrate the device to ensure it can operate normally; S12: Treat the valve surface to prevent dirt residue from affecting the inspection operation; S13: Install and debug the pressure head to ensure stability and ease of operation; S14: Pre-testing and calibration should be performed before formal testing; S15: Perform a formal hardness test on the valve's test area; S16: Record and process the test results; S17: Calculate valve strength using the formula; S18: Verify and check the calculation results.

2. The method for obtaining the strength of an A105 material valve by hardness according to claim 1, characterized in that: The following steps are included in the preparation and calibration of the device: S21: Ensure that the testing device, including but not limited to the force loading component (1), force measuring component (2), test indenter (3), indentation depth measuring system (4), frame (5), matching arc clamp (6), matching chain clamp (7), display panel (8), and external power cord (9), is intact and undamaged; S22: Preheat and calibrate the device to ensure the accuracy of the force loading and measurement system; S23: Check the wear condition of the test head. If a malfunction is found, it needs to be replaced or repaired.

3. The method for obtaining the strength of an A105 material valve by hardness according to claim 1, characterized in that: The surface treatment of valves includes the following steps: S31: Use 100# sandpaper to preliminarily polish the valve part to be tested to remove the surface oxide layer and stains; S32: Use 240#, 400#, 800#, and 1200# sandpaper in sequence for fine sanding until the surface is smooth and free of scratches; S33: Clean the polished surface with organic solvents such as alcohol or acetone to remove residual abrasive and stains.

4. The method for obtaining the strength of an A105 material valve by hardness according to claim 1, characterized in that: The installation and commissioning of the pressure head includes the following steps: S41: Select the appropriate test head and fixture according to the shape and size of the valve part to be tested; S42: Install the indenter onto the device and adjust its position to ensure that the tip of the indenter is 2mm to 3mm above the sample plane; S43: Use matching arc-shaped clamps or chain clamps to fix the valve sample to the device to ensure stability and ease of operation.

5. The method for obtaining the strength of an A105 material valve by hardness according to claim 1, characterized in that: The pre-testing and calibration process includes the following steps: S51: Before the formal test, conduct several pre-tests to familiarize yourself with the operating procedures and adjust the device parameters; S52: Observe and record the results of each pre-test until the error of the measured result is no greater than 5 HBW; S53: Based on the preliminary test results, make necessary fine adjustments to the device to ensure the accuracy of the test results.

6. The method for obtaining the strength of an A105 material valve by hardness according to claim 1, characterized in that: The formal hardness test includes the following steps: S61: Start the device to begin hardness testing of the valve's test area; S62: Observe and record parameters such as force loading, force measurement, and compression depth during the test; S63: Ensure there is no abnormal noise or vibration during the test to avoid affecting the test results.

7. The method for obtaining the strength of an A105 material valve by hardness according to claim 1, characterized in that: The following steps are included in data recording and processing: S71: Record the hardness values ​​obtained from the test in a dedicated data table; S72: The three measurement results are averaged to obtain the final hardness value.

8. The method for obtaining the strength of an A105 material valve by hardness according to claim 1, characterized in that: When calculating valve strength using formulas, the following steps are included: S81: Substitute the measured hardness value into the material yield strength formula Rp0.2=178.3+1.06*HBW and the material tensile strength formula Rm=346.2+1.42*HBW; S82: The yield strength Rp0.2 and tensile strength Rm of the valve made of A105 material were calculated; S83: Record the calculation results in a dedicated report or data table.

9. The method for obtaining the strength of an A105 material valve by hardness according to claim 1, characterized in that: The verification and validation of the results include the following steps: S91: Verify the calculation results to ensure there are no calculation errors or data input errors; S92: Compare the calculation results with known strength data of valves made of the same material to verify their rationality and accuracy; S93: Prepare a detailed test report based on the test results and calculation results; S94: Archive and save the test report for future review and comparison.

10. A method for obtaining the strength of an A105 material valve by hardness according to claims 1-9, characterized in that: A device for obtaining the strength of an A105 material valve by hardness includes a force loading component (1), a force measuring component (2), a test head (3), a pressure depth measuring system (4), a frame (5), a matching arc-shaped clamp (6), a matching chain clamp (7), a display panel (8), and an external power cord (9). The force loading component (1) is provided with a force measuring component (2) at its bottom end. The pressure depth measuring system (4) is provided on the bottom surface of the force measuring component (2). The test head (3) is provided at the bottom end of the pressure depth measuring system (4). The frame (5) is provided on the outside of the force measuring component (2). The matching arc-shaped clamp (6) is provided at the bottom end of the frame (5). The matching chain clamp (7) is provided below the matching arc-shaped clamp (6). The display panel (8) is provided on one side of the force loading component (1), and the external power cord (9) is provided on the other side of the force loading component (1).

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