Method for preparing electrochemical metal corrosion sample by using ultrasonic welding technology

Abstract

The invention relates to the technical field of preparation of electrochemical metal corrosion samples, and particularly discloses a method for preparing an electrochemical metal corrosion sample by using an ultrasonic welding technology, which comprises the following steps of: 1, placing a metal sample to be welded in a welding fixture specially designed for ultrasonic welding in a high-precision manner, the sample position is accurate, stable and reliable; 2, generating vibration excitation with a specific frequency by using an ultrasonic generator; the ultrasonic welding technology is adopted, excessive professional technologies and operation experience are not needed, and the welding process can be simply and rapidly completed; compared with a traditional welding method, the ultrasonic welding technology is lower in equipment cost and higher in welding efficiency, and the cost for preparing the electrochemical metal corrosion sample can be effectively reduced; an ultrasonic welding technology is adopted, so that the sample preparation period can be effectively shortened, and the experiment efficiency is improved; the ultrasonic welding technology is adopted, noise and pollution are avoided, and the characteristics of environmental protection and energy conservation are achieved.

Description

Technical Field

[0001] The invention belongs to the technical field of preparing electrochemical metal corrosion samples, and in particular relates to a method for preparing electrochemical metal corrosion samples by using ultrasonic welding technology. Background Art

[0002] After polishing, the surface of metal samples is usually relatively flat, and different tissues are difficult to distinguish under a microscope. The preparation of metal corrosion samples, especially the corrosion steps, can produce corrosion differences between different phases or tissues in the metal samples, so that the microstructure can be clearly displayed under a microscope. This is crucial for studying the relationship between the organizational structure and performance of materials, and helps to understand the composition, phase composition, grain size, morphology, defects and other information of the materials. The preparation of metal corrosion samples is an important means to evaluate the corrosion resistance of materials. By observing and analyzing the prepared corrosion samples, the corrosion rate, corrosion morphology and the impact of corrosion on material properties under specific environments can be evaluated, which is of great significance for material selection, design and service life prediction.

[0003] Currently, common methods for preparing electrochemical metal corrosion samples include traditional welding methods such as electric welding, brazing, and gas shielded welding. However, these methods have problems such as cracks and oxidation that are prone to occur at the welding joints, thereby affecting the stability of the sample state and the credibility of the test data. The present invention provides a method for preparing electrochemical metal corrosion samples using ultrasonic welding technology.

[0004] The present invention uses ultrasonic welding technology to generate stronger pressure and temperature on the surface of the welding joint. Compared with traditional welding methods, the risk of cracking of the welding joint is reduced and the quality of welding is improved.

[0005] At the same time, the ultrasonic welding technology used in the present invention does not require too much professional technology and operating experience, and can simply and quickly complete the welding process; compared with traditional welding methods, the ultrasonic welding technology has lower equipment costs and higher welding efficiency, which can effectively reduce the cost of preparing electrochemical metal corrosion samples; the ultrasonic welding technology can effectively shorten the sample preparation cycle, thereby improving the efficiency of the experiment; the ultrasonic welding technology does not generate noise and pollution, and has the characteristics of environmental protection and energy saving.

[0006] The present invention applies ultrasonic welding technology to the process of preparing electrochemical metal corrosion samples. The device formed by the welding fixture, ultrasonic generator, and ultrasonic welding head combination used can significantly improve the material strength at the welding joint, and produce a more solid and stable welding effect. At the same time, the equipment is easy to operate, efficient, and low in cost. It has good practical value and can effectively solve the problem in the prior art that cracks and oxidation are prone to occur at the welding joints of electrochemical metal corrosion samples, thereby affecting the stability of the sample state and the credibility of the test data. Summary of the invention

[0007] The object of the present invention is to provide a method for preparing an electrochemical metal corrosion sample using ultrasonic welding technology to solve the problems raised in the above background technology.

[0008] To achieve the above object, the present invention provides the following technical solutions:

[0009] A method for preparing an electrochemical metal corrosion sample using ultrasonic welding technology, comprising:

[0010] Step 1: Place the metal sample to be welded in a welding fixture designed for ultrasonic welding with high precision, and ensure that the sample is positioned accurately and firmly.

[0011] Step 2: Use an ultrasonic generator to generate vibration excitation of a specific frequency. After precise control, the excitation signal is efficiently converted into ultrasonic energy by the ultrasonic oscillator and accurately transmitted to the contact interface of the metal sample by the ultrasonic welding head, achieving local rapid heating and precise extrusion effects to promote metallurgical bonding between metals.

[0012] Step 3: Utilize the mechanical and thermal energy effects generated by ultrasonic vibration to form a tight and strong bond between the welding units, thereby efficiently and accurately completing the ultrasonic welding preparation process of the electrochemical metal corrosion sample.

[0013] Preferably, the welding device comprises:

[0014] A welding fixture, wherein the welding fixture is made of high-strength and wear-resistant material and is used to stably and accurately clamp the metal sample to ensure position stability during the welding process;

[0015] An ultrasonic generator, the ultrasonic generator is used to generate a high-frequency electrical signal, the high-frequency electrical signal has a stable frequency and amplitude to ensure a stable output of ultrasonic energy;

[0016] An ultrasonic oscillator, which is used to efficiently convert the electrical signal generated by the ultrasonic generator into ultrasonic vibration, so that the conversion efficiency is high and the loss is small;

[0017] Ultrasonic welding head, which is made of alloy material, has excellent wear resistance and thermal conductivity, can directly act on the metal sample, produce the required vibration effect, and promote the metallurgical bonding of the welding section;

[0018] A power supply, which is used to provide a stable and reliable power supply to the entire system to ensure the continuity and stability of the welding process;

[0019] It should be noted that the sample is precisely placed in the welding fixture, and the ultrasonic vibration is accurately transmitted to the welding section through the welding head to achieve local heating and extrusion, ensuring a strong and high-quality weld under the preset time and temperature conditions.

[0020] Through the setting of the above technical solution, the present invention uses ultrasonic welding technology to generate stronger pressure and temperature on the surface of the welding joint. Compared with traditional welding methods, the risk of cracking of the welding joint is reduced and the quality of welding is improved.

[0021] At the same time, the ultrasonic welding technology used in the present invention does not require too much professional technology and operating experience, and can simply and quickly complete the welding process; compared with traditional welding methods, the ultrasonic welding technology has lower equipment cost and higher welding efficiency, which can effectively reduce the cost of preparing electrochemical metal corrosion samples; the ultrasonic welding technology can effectively shorten the sample preparation cycle, thereby improving the efficiency of the experiment; the ultrasonic welding technology does not generate noise and pollution, and has the characteristics of environmental protection and energy saving;

[0022] The present invention places the metal sample in a welding fixture specially designed for ultrasonic welding with high precision, and ensures that the sample position is accurate, stable and reliable, thereby effectively avoiding sample displacement or deformation during the welding process, and improving the accuracy and stability of welding; an ultrasonic generator is used to generate vibration excitation of a specific frequency, and the ultrasonic oscillator is used to efficiently convert it into ultrasonic energy, which is accurately transmitted to the contact interface of the metal sample by the ultrasonic welding head, thereby achieving local rapid heating and precise extrusion effects, promoting metallurgical bonding between metals, and improving welding quality and efficiency; by adjusting parameters such as ultrasonic frequency, power, welding time and applied pressure, the present invention can flexibly adapt to the welding requirements of different metal materials, ensure that the energy input in the welding process matches the thermal conductivity of the metal, and improve Improve the versatility and applicability of welding; use a closed-loop control system to monitor the temperature and pressure changes of the welding section in real time, ensuring that the welding parameters are always kept within the preset range, further improving the welding quality and stability; use non-destructive testing technology to detect the welding joints to ensure that the welding quality meets the standard requirements of the electrochemical corrosion test; at the same time, introduce intelligent welding algorithms to adjust the parameters of the type, thickness and welding requirements of metal materials, improving the intelligence level and automation of welding; use an efficient cooling system to achieve green welding, improve welding efficiency and reduce energy consumption; at the same time, use a non-contact cooling device to quickly cool the welding sample after welding, reduce the welding heat affected zone, and improve the accuracy of the electrochemical corrosion test of the sample;

[0023] In summary, the present invention applies ultrasonic welding technology to the process of preparing electrochemical metal corrosion samples. The device formed by the welding fixture, ultrasonic generator, and ultrasonic welding head combination used can significantly improve the material strength at the welding joint, and produce a more solid and stable welding effect. At the same time, the equipment is easy to operate, efficient, and low in cost. It has good practical value and can effectively solve the problem in the prior art that cracks and oxidation are prone to occur at the welding joints of electrochemical metal corrosion samples, thereby affecting the stability of the sample state and the credibility of the test data.

[0024] Preferably, the ultrasonic frequency range is 20kHz to 50kHz to balance welding efficiency and precision while avoiding unnecessary thermal damage to the metal sample; the ultrasonic power is 100W to 1kW to meet the welding requirements of different metal materials and ensure that the energy input during welding matches the thermal conductivity of the metal; the pressure applied during welding is 10N / cm 2 Up to 50N / cm 2 range to ensure close contact of the welding section and promote metallurgical bonding between metals; the welding time is 0.1 second to 30 seconds to optimize welding quality and process control and ensure the integrity and strength of the welding section.

[0025] Preferably, during the welding process, a closed-loop control system is used to monitor the temperature and pressure changes of the welding cross section in real time to ensure that the welding parameters are always kept within a preset range, thereby further improving the welding quality and stability.

[0026] Preferably, the welding joint is inspected by adopting non-destructive testing technology, which is any one of ultrasonic flaw detection or X-ray detection, to ensure that the welding quality meets the standard requirements of electrochemical corrosion testing.

[0027] Preferably, the method of adjusting the parameters of the type, thickness and welding requirements of the metal material is to introduce an intelligent welding algorithm.

[0028] Preferably, the welding device adopts an efficient cooling system to achieve green welding, improve welding efficiency and reduce energy consumption.

[0029] Preferably, after the welding is completed, a non-contact cooling device is used to quickly cool the welded sample to reduce the heat impact during welding and improve the accuracy of the electrochemical corrosion test of the sample.

[0030] Compared with the prior art, the present invention has the following beneficial effects:

[0031] The present invention uses ultrasonic welding technology to generate stronger pressure and temperature on the surface of the welding joint. Compared with traditional welding methods, the risk of cracking of the welding joint is reduced and the quality of welding is improved.

[0032] At the same time, the ultrasonic welding technology used in the present invention does not require too much professional technology and operating experience, and can simply and quickly complete the welding process; compared with traditional welding methods, the ultrasonic welding technology has lower equipment costs and higher welding efficiency, which can effectively reduce the cost of preparing electrochemical metal corrosion samples; the ultrasonic welding technology can effectively shorten the sample preparation cycle, thereby improving the efficiency of the experiment; the ultrasonic welding technology does not generate noise and pollution, and has the characteristics of environmental protection and energy saving.

[0033] The present invention places the metal sample in a welding fixture specially designed for ultrasonic welding with high precision, and ensures that the sample position is accurate, stable and reliable, thereby effectively avoiding sample displacement or deformation during the welding process, and improving the accuracy and stability of welding; an ultrasonic generator is used to generate vibration excitation of a specific frequency, and the ultrasonic oscillator is used to efficiently convert it into ultrasonic energy, which is accurately transmitted to the contact interface of the metal sample by the ultrasonic welding head, thereby achieving local rapid heating and precise extrusion effects, promoting metallurgical bonding between metals, and improving welding quality and efficiency; by adjusting parameters such as ultrasonic frequency, power, welding time and applied pressure, the present invention can flexibly adapt to the welding requirements of different metal materials, ensure that the energy input in the welding process matches the thermal conductivity of the metal, and improve The versatility and applicability of welding are improved; a closed-loop control system is used to monitor the temperature and pressure changes of the welding section in real time, ensuring that the welding parameters are always kept within the preset range, further improving the welding quality and stability; the welding joints are inspected through non-destructive testing technology to ensure that the welding quality meets the standard requirements of the electrochemical corrosion test; at the same time, an intelligent welding algorithm is introduced to adjust the parameters of the type, thickness and welding requirements of the metal material, thereby improving the intelligence level and automation level of welding; an efficient cooling system is used to achieve green welding, which improves welding efficiency and reduces energy consumption; at the same time, a non-contact cooling device is used to quickly cool the welding sample after welding, reducing the welding heat affected zone and improving the accuracy of the electrochemical corrosion test of the sample.

[0034] In summary, the present invention applies ultrasonic welding technology to the process of preparing electrochemical metal corrosion samples. The device formed by the welding fixture, ultrasonic generator, and ultrasonic welding head combination used can significantly improve the material strength at the welding joint, and produce a more solid and stable welding effect. At the same time, the equipment is easy to operate, efficient, and low in cost. It has good practical value and can effectively solve the problem in the prior art that cracks and oxidation are prone to occur at the welding joints of electrochemical metal corrosion samples, thereby affecting the stability of the sample state and the credibility of the test data. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 It is a flow chart of the steps of the present invention. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0037] like Figure 1 As shown, a method for preparing an electrochemical metal corrosion sample using ultrasonic welding technology comprises:

[0038] Step 1: Place the metal sample to be welded in a welding fixture designed for ultrasonic welding with high precision, and ensure that the sample is positioned accurately and firmly.

[0039] Step 2: Use an ultrasonic generator to generate vibration excitation of a specific frequency. After precise control, the excitation signal is efficiently converted into ultrasonic energy by the ultrasonic oscillator and accurately transmitted to the contact interface of the metal sample by the ultrasonic welding head, achieving local rapid heating and precise extrusion effects to promote metallurgical bonding between metals.

[0040] Step 3: Utilize the mechanical and thermal energy effects generated by ultrasonic vibration to form a tight and strong bond between the welding units, thereby efficiently and accurately completing the ultrasonic welding preparation process of the electrochemical metal corrosion sample.

[0041] Preferably, the welding device comprises:

[0042] A welding fixture, wherein the welding fixture is made of high-strength and wear-resistant material and is used to stably and accurately clamp the metal sample to ensure position stability during the welding process;

[0043] An ultrasonic generator, the ultrasonic generator is used to generate a high-frequency electrical signal, the high-frequency electrical signal has a stable frequency and amplitude to ensure a stable output of ultrasonic energy;

[0044] An ultrasonic oscillator, which is used to efficiently convert the electrical signal generated by the ultrasonic generator into ultrasonic vibration, so that the conversion efficiency is high and the loss is small;

[0045] Ultrasonic welding head, which is made of alloy material, has excellent wear resistance and thermal conductivity, can directly act on the metal sample, produce the required vibration effect, and promote the metallurgical bonding of the welding section;

[0046] A power supply, which is used to provide a stable and reliable power supply to the entire system to ensure the continuity and stability of the welding process;

[0047] It should be noted that the sample is precisely placed in the welding fixture, and the ultrasonic vibration is accurately transmitted to the welding section through the welding head to achieve local heating and extrusion, ensuring a strong and high-quality weld under the preset time and temperature conditions.

[0048] Specifically, the ultrasonic frequency range is 20kHz to 50kHz to balance welding efficiency and precision while avoiding unnecessary thermal damage to the metal sample; the ultrasonic power is 100W to 1kW to meet the welding requirements of different metal materials and ensure that the energy input during welding matches the thermal conductivity of the metal; the pressure applied during welding is 10N / cm 2 Up to 50N / cm 2 range, ensuring close contact of the welding section and promoting metallurgical bonding between metals; the welding time is 0.1 second to 30 seconds to optimize welding quality and process control, ensure the integrity and strength of the welding section, and during the welding process, a closed-loop control system is used to monitor the temperature and pressure changes of the welding section in real time to ensure that the welding parameters are always kept within the preset range, further improving the welding quality and stability, and non-destructive testing technology is used to detect the welding joint, and the non-destructive testing technology is any one of ultrasonic flaw detection or X-ray detection to ensure that the welding quality meets the standard requirements of the electrochemical corrosion test, and the method of adjusting the parameters of the type, thickness and welding requirements of the metal material is to introduce an intelligent welding algorithm, and the welding device adopts an efficient cooling system to achieve green welding, improve welding efficiency and reduce energy consumption. After the welding is completed, a non-contact cooling device is used to quickly cool the welding sample to reduce the heat impact during welding and improve the accuracy of the electrochemical corrosion test of the sample.

[0049] As can be seen from the above, the specific preparation method is as follows:

[0050] 1. Select the metal sample to be prepared and cut it into the required shape and size;

[0051] 2. Place the sample in the welding fixture and fix its position so that it can stably receive the effect of ultrasonic waves;

[0052] 3. Turn on the ultrasonic generator, select the appropriate frequency and power, the generator will release high-frequency energy of a specific frequency, drive the ultrasonic frequency vibration, and produce a local focused hot spot;

[0053] 4. According to the specific metal material and welding parameters, set the appropriate time. Generally, the ultrasonic frequency used in welding is between 20kHz and 50kHz; the ultrasonic power is between 100W and 1kW; the pressure during welding is between 10N / cm2 and 50N / cm2; the welding time is between 0.1 seconds and 30 seconds;

[0054] 5. After welding is completed, remove the sample from the fixture and clean it with a cleaning solution or oxidant to ensure the cleanliness of the sample surface;

[0055] 6. Perform post-processing on welding samples according to actual test needs, such as polishing, grinding, etc.;

[0056] Through the setting of the above technical solution, the present invention uses ultrasonic welding technology to generate stronger pressure and temperature on the surface of the welding joint. Compared with traditional welding methods, the risk of cracking of the welding joint is reduced and the quality of welding is improved.

[0057] At the same time, the ultrasonic welding technology used in the present invention does not require too much professional technology and operating experience, and can simply and quickly complete the welding process; compared with traditional welding methods, the ultrasonic welding technology has lower equipment cost and higher welding efficiency, which can effectively reduce the cost of preparing electrochemical metal corrosion samples; the ultrasonic welding technology can effectively shorten the sample preparation cycle, thereby improving the efficiency of the experiment; the ultrasonic welding technology does not generate noise and pollution, and has the characteristics of environmental protection and energy saving;

[0058] The present invention places the metal sample in a welding fixture specially designed for ultrasonic welding with high precision, and ensures that the sample position is accurate, stable and reliable, thereby effectively avoiding sample displacement or deformation during the welding process, and improving the accuracy and stability of welding; an ultrasonic generator is used to generate vibration excitation of a specific frequency, and the ultrasonic oscillator is used to efficiently convert it into ultrasonic energy, which is accurately transmitted to the contact interface of the metal sample by the ultrasonic welding head, thereby achieving local rapid heating and precise extrusion effects, promoting metallurgical bonding between metals, and improving welding quality and efficiency; by adjusting parameters such as ultrasonic frequency, power, welding time and applied pressure, the present invention can flexibly adapt to the welding requirements of different metal materials, ensure that the energy input in the welding process matches the thermal conductivity of the metal, and improve Improve the versatility and applicability of welding; use a closed-loop control system to monitor the temperature and pressure changes of the welding section in real time, ensuring that the welding parameters are always kept within the preset range, further improving the welding quality and stability; use non-destructive testing technology to detect the welding joints to ensure that the welding quality meets the standard requirements of the electrochemical corrosion test; at the same time, introduce intelligent welding algorithms to adjust the parameters of the type, thickness and welding requirements of metal materials, improving the intelligence level and automation of welding; use an efficient cooling system to achieve green welding, improve welding efficiency and reduce energy consumption; at the same time, use a non-contact cooling device to quickly cool the welding sample after welding, reduce the welding heat affected zone, and improve the accuracy of the electrochemical corrosion test of the sample;

[0059] In summary, the present invention applies ultrasonic welding technology to the process of preparing electrochemical metal corrosion samples. The device formed by the welding fixture, ultrasonic generator, and ultrasonic welding head combination used can significantly improve the material strength at the welding joint, and produce a more solid and stable welding effect. At the same time, the equipment is easy to operate, efficient, and low in cost. It has good practical value and can effectively solve the problem in the prior art that cracks and oxidation are prone to occur at the welding joints of electrochemical metal corrosion samples, thereby affecting the stability of the sample state and the credibility of the test data.

[0060] Furthermore, this design application is applied to the preparation of electrochemical metal corrosion samples using ultrasonic welding technology. The use of ultrasonic welding technology does not require too much professional technology and operating experience, and the welding process can be completed simply and quickly; compared with traditional welding methods, the use of ultrasonic welding technology has lower equipment costs and higher welding efficiency, which can effectively reduce the cost of preparing electrochemical metal corrosion samples; the use of ultrasonic welding technology can effectively shorten the sample preparation cycle, thereby improving the efficiency of the experiment; the use of ultrasonic welding technology will not generate noise and pollution, and is environmentally friendly and energy-saving.

[0061] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A method for preparing electrochemical metal corrosion samples using ultrasonic welding technology, characterized in that: include: Step 1: Place the metal sample to be welded in a welding fixture designed for ultrasonic welding with high precision, and ensure that the sample is positioned accurately and firmly. Step 2: Using an ultrasonic generator to generate vibration excitation of a specific frequency, the excitation signal is precisely regulated, efficiently converted into ultrasonic energy by an ultrasonic oscillator, and accurately transmitted to the contact interface of the metal sample by an ultrasonic welding head; Step 3: Use the mechanical and thermal energy effects generated by ultrasonic vibration to form a tight and strong bond between the welding units.

2. The method for preparing electrochemical metal corrosion samples using ultrasonic welding technology according to claim 1, characterized in that: The welding device comprises: A welding fixture, wherein the welding fixture is made of high-strength and wear-resistant material and is used to stably and accurately clamp the metal sample to ensure position stability during the welding process; An ultrasonic generator, the ultrasonic generator is used to generate a high-frequency electrical signal, the high-frequency electrical signal has a stable frequency and amplitude; An ultrasonic oscillator, which is used to efficiently convert the electrical signal generated by the ultrasonic generator into ultrasonic vibration; Ultrasonic welding head, wherein the ultrasonic welding head is made of alloy material; A power supply is used to provide a stable and reliable power supply for the entire system.

3. The method for preparing electrochemical metal corrosion samples using ultrasonic welding technology according to claim 2, characterized in that: The ultrasonic frequency range is 20kHz to 50kHz; the ultrasonic power is 100W to 1kW; the pressure applied during welding is 10N / cm 2 Up to 50N / cm 2 The welding time is from 0.1 seconds to 30 seconds.

4. The method for preparing electrochemical metal corrosion samples using ultrasonic welding technology according to claim 2, characterized in that: During the welding process, the temperature and pressure changes of the welding section are monitored in real time using a closed-loop control system.

5. The method for preparing electrochemical metal corrosion samples using ultrasonic welding technology according to claim 2, characterized in that: The welding joint is inspected by using non-destructive testing technology, which is any one of ultrasonic testing or X-ray testing.

6. The method for preparing electrochemical metal corrosion samples using ultrasonic welding technology according to claim 2, characterized in that: The method of adjusting parameters of the type, thickness and welding requirements of the metal material is to introduce an intelligent welding algorithm.

7. The method for preparing electrochemical metal corrosion samples using ultrasonic welding technology according to claim 2, characterized in that: The welding device adopts a high-efficiency cooling system.

8. The method for preparing electrochemical metal corrosion samples using ultrasonic welding technology according to claim 2, characterized in that: After the welding is completed, a non-contact cooling device is used to quickly cool the welding sample.

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