A hard disk repair method and apparatus

Abstract

This application provides a hard drive repair method and apparatus. The hard drive includes platters with molten foreign matter adhered to them. The molten foreign matter includes polyoxymethylene. The method includes: heating a target solvent to a preset temperature; placing the platter in the target solvent, maintaining the preset temperature for a preset time, and then removing it to obtain a platter free of molten foreign matter. The target solvent is used to dissolve the polyoxymethylene without dissolving the platter. The method provided by this application can dissolve foreign matter on the platter without damaging its integrity, allowing the data on the platter to be parsed and read normally, thus successfully repairing the hard drive.

Description

Technical Field

[0001] This application relates to the field of computer hardware maintenance technology, and in particular to a hard disk repair method and device. Background Technology

[0002] Mechanical hard drives have a complex structure and are manufactured with precision, making them susceptible to failure due to various reasons, thus requiring repair. The platters are one of the most important and delicate components of a hard drive; even the smallest particles cannot be present on them, otherwise, the read / write heads may be crushed or the platters may be scratched, ultimately damaging the hard drive.

[0003] When a hard drive is exposed to high temperatures, it may damage its motherboard, components, read / write heads, and platters. Current repair techniques primarily involve replacing the faulty motherboard, read / write heads, and other faulty components to restore the hard drive. For damage caused by melted foreign matter contaminating the platters, mechanical separation is mainly used to remove the foreign matter.

[0004] However, mechanical separation methods can easily cause secondary damage to the disks and require a high level of technical expertise. Summary of the Invention

[0005] The first aspect of this invention provides a hard disk repair method and device to solve the technical problem that mechanical separation methods for removing foreign objects from disks can easily cause secondary damage to the disks.

[0006] This invention provides a hard drive repair method, the hard drive including platters, on which molten foreign matter is adhered, the molten foreign matter including polyoxymethylene, the method comprising:

[0007] Heat the target solvent to a preset temperature;

[0008] The disk is placed in the target solvent and soaked at the preset temperature for a preset time before being removed to obtain a disk without melted foreign matter. The target solvent is used to dissolve the polyoxymethylene without dissolving the disk.

[0009] According to one embodiment of the present invention, the target solvent includes one or more of dichloromethane, dimethylformamide, trichloroethylene, tetrahydrofuran, ammonium hydroxide, and dimethyl sulfoxide.

[0010] According to one embodiment of the present invention, the preset temperature is 120℃~135℃.

[0011] According to one embodiment of the present invention, the preset time is 10 min to 20 min.

[0012] According to an embodiment of the present invention, the step of placing the disk in the target solvent, maintaining the preset temperature for a preset immersion time, and then removing it includes:

[0013] The disc is placed in dimethylformamide and soaked at the preset temperature for a preset time before being removed. Then the disc is placed in dimethyl sulfoxide and soaked at the preset temperature for a preset time before being removed.

[0014] According to an embodiment of the present invention, the method further includes:

[0015] The disk without melted foreign matter was transferred to a cleanroom, cleaned with anhydrous ethanol and dried with a clean cloth to obtain the repaired disk.

[0016] The repaired disk is then reinstalled into the hard drive's disk cavity.

[0017] According to an embodiment of the present invention, before heating the target solvent to a preset temperature, the method further includes:

[0018] Obtain the mass of the molten foreign object;

[0019] The mass of the target solvent added is determined based on the mass of the molten foreign matter; the mass of the target solvent added is greater than the mass of the target solvent required to completely dissolve the molten foreign matter.

[0020] According to one embodiment of the present invention, the hard disk further includes a head landing frame, and the molten foreign matter is a substance that adheres to the disk platter after the head landing frame has been baked and melted.

[0021] According to an embodiment of the present invention, the method further includes:

[0022] Remove the molten foreign matter from the disk;

[0023] The composition of the molten foreign matter was determined by infrared spectroscopy.

[0024] A second aspect of the present invention provides a hard disk repair device, comprising: a controller, and a picking component and a heating component connected to the controller;

[0025] The heating component is used to heat the target solvent to a preset temperature under the control of the controller;

[0026] The picking component is used to pick up the disk under the control of the controller and place it in the target solvent; the target solvent is used to dissolve the polyoxymethylene without dissolving the disk.

[0027] The picking component is also used to remove the disk after the heating component heats the target solvent at a preset temperature for a preset time, and the removed disk is a disk without melted foreign matter.

[0028] This invention provides a hard drive repair method and device. The hard drive includes platters with molten foreign matter, including polyoxymethylene, adhered to them. The method includes immersing the platter in a target solvent and heating it at a preset temperature for a preset time, then removing it to obtain a platter free of molten foreign matter. The target solvent dissolves the polyoxymethylene without dissolving the platter itself. By immersing the platter with molten foreign matter in the target solvent and controlling the time and temperature, the target solvent melts the foreign matter without damaging the platter's structure. The resulting platter free of molten foreign matter can be normally read and analyzed, thus repairing the hard drive. Compared to mechanical separation methods for removing molten foreign matter, this method is less likely to cause secondary damage to the platter and is more convenient and faster. Attached Figure Description

[0029] Figure 1 A flowchart illustrating a hard drive repair method provided in this application;

[0030] Figure 2 A schematic diagram of a hard drive repair device provided in this application. Detailed Implementation

[0031] To enable those skilled in the art to better understand the present invention, the present invention will be further described in detail below. The specific embodiments listed below are merely descriptions of the principles and features of the present invention, and the examples are only for explaining the present invention and are not intended to limit the scope of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0032] The first aspect of this invention provides a hard disk repair method, the hard disk including platters, on which molten foreign matter is adhered, the molten foreign matter including polyoxymethylene, such as... Figure 1 As shown, the method includes the following steps:

[0033] S101. Heat the target solvent to a preset temperature;

[0034] S102. Place the disk in the target solvent, maintain the preset temperature and soak for a preset time, then remove it to obtain a disk without melted foreign matter. The target solvent is used to dissolve polyoxymethylene without dissolving the disk.

[0035] The disk platter can be made of aluminum-magnesium alloy.

[0036] The preset temperature refers to the temperature at which the target solvent is heated and maintained, such as 120°C or 130°C. It can be adjusted according to the actual situation, and this embodiment does not limit it.

[0037] The preset time refers to the time the disk is in the target solvent at a preset temperature, such as 10 minutes, 20 minutes, etc., which can be adjusted according to the actual situation. This embodiment does not limit this.

[0038] Optionally, the preset time and preset temperature can be adjusted adaptively according to the type of target solvent used.

[0039] It should be noted that polyoxymethylene groups in the molten foreign matter can be identified through analysis using an infrared spectrometer.

[0040] Hard drives, when exposed to high temperatures, can develop molten foreign matter adhering to their platters, causing damage. Mechanical separation methods to remove this foreign matter may cause further damage to the platters, rendering the hard drive unrepairable. This invention addresses this issue by focusing on the composition of the molten foreign matter, which includes polyoxymethylene (POM). To remove this molten foreign matter from the platters, a solvent capable of dissolving POM is selected. This solvent must be able to dissolve POM while preserving the platter structure. By controlling the temperature and time, the foreign matter on the platter is cleaned, successfully repairing hard drive damage caused by foreign matter on the platters.

[0041] Therefore, the hard drive repair method provided by this invention includes a hard drive comprising platters with molten foreign matter adhered to them, the molten foreign matter including polyoxymethylene. The method includes: heating a target solvent to a preset temperature; placing the platter in the target solvent, maintaining the preset temperature for a preset time, and then removing it to obtain a platter free of molten foreign matter. The target solvent is used to dissolve the polyoxymethylene without dissolving the platter. By immersing the platter with molten foreign matter in the target solvent and controlling the time and temperature, the target solvent melts the foreign matter without damaging the platter's structure. The resulting platter free of molten foreign matter can be normally parsed and read to achieve hard drive repair. Compared with mechanical separation methods to remove molten foreign matter, this method is less likely to cause secondary damage to the platter and is more convenient and faster.

[0042] In one specific embodiment, the target solvent includes one or more of dichloromethane, dimethylformamide, trichloroethylene, tetrahydrofuran, ammonium hydroxide, and dimethyl sulfoxide. Preferably, the target solvent is one or more of dimethylformamide or dimethyl sulfoxide. Using the above-mentioned solvent as the target solvent to soak the disk provides better dissolution of molten foreign matter on the disk without damaging the disk structure, successfully achieving hard drive repair for hard drive damage caused by foreign matter adhering to the disk.

[0043] In one specific implementation, the preset temperature is 120℃~135℃. For example, the preset temperature can be 120℃, 122℃, 124℃, 126℃, 128℃, 130℃, 132℃, 135℃, or any combination of two of these values. By controlling the target solvent to be heated within the above range, all molten foreign matter on the disk immersed in the target solvent is dissolved into the target solvent, ensuring that the disk structure is not damaged, thus improving the efficiency and success rate of hard drive repair.

[0044] In one specific implementation, the preset time is 10 to 20 minutes. For example, the preset time can be 10 minutes, 12 minutes, 14 minutes, 16 minutes, 18 minutes, 20 minutes, or any combination of two of these values. By controlling the time the disk is in the target solvent within the above range, all molten foreign matter on the disk can be dissolved into the target solvent, ensuring successful hard drive repair while improving repair efficiency.

[0045] For example, the type of target solvent, the range of preset temperature, and the range of preset time can be determined by a melting foreign matter dissolution experiment and a disk heating experiment, respectively. Specifically, the melting foreign matter, including polyoxymethylene, is immersed in the target solvent, and the temperature is increased in steps. The state of the melting foreign matter in the target solvent is observed. When bubbles begin to appear on the surface of the melting foreign matter, it indicates that the melting foreign matter has begun to dissolve. The current temperature is maintained, and the time of the melting foreign matter in the target solvent is extended until the melting foreign matter is completely dissolved; or the temperature is increased until the melting foreign matter is completely dissolved, in order to determine the range of preset temperature and preset time. The above steps are repeated with a different type of target solvent to determine the type of target solvent. To ensure that the determined type of target solvent, preset temperature, and preset time range will not damage the disk, a test disk containing data was selected. The target solvent selected for the dissolution experiment was heated to the preset temperature, and the test disk was immersed in the target solvent for a preset time. After that, it was removed, cleaned, and reassembled into the hard drive. A special inspection tool was then used to extract the image file of the data in the test disk and restore the data in the disk. This confirmed that the type of target solvent, preset temperature, and preset time range determined in the dissolution experiment can ensure that the melted foreign matter is dissolved without damaging the integrity of the disk.

[0046] Understandably, to further verify the feasibility of this method, a simulation experiment can be conducted. For example, a simulation disk and a test disk of the same model are selected, and the same files are stored on both disks. A substance containing polyoxymethylene is placed on the simulation disk. Both the simulation disk and the test disk are simultaneously placed in an electric heating chamber, and the temperature and time are adjusted until the polyoxymethylene substance melts. For example, the heating temperature is set to 180℃ and the heating time to 20 minutes. After cleaning the test disk in a cleanroom, no damage is observed under a microscope. A special inspection tool is used to extract the mirror image data from the test disk and compare it with the stored file to confirm that the heating temperature and time in the electric heating chamber do not damage the disk. The simulation disk is then processed according to the type of target solvent, preset temperature, and preset time range determined in the dissolution experiment to obtain a disk free of foreign matter. After cleaning the disk free of foreign matter, a special inspection tool is used to extract the mirror image data from the disk and compare it with the stored file to further verify the feasibility of this method.

[0047] In a preferred embodiment, placing the disk in a target solvent, maintaining a preset temperature for a preset immersion time, and then removing it includes: placing the disk in dimethylformamide, maintaining a preset temperature for a preset immersion time, and then removing it; then placing the disk in dimethyl sulfoxide, maintaining a preset temperature for a preset immersion time, and then removing it. Specifically, after heating the dimethylformamide to a preset temperature, the disk is placed in and maintained for a preset time before being removed; then the disk is immersed in dimethyl sulfoxide at a preset temperature and maintained for a preset time before being removed.

[0048] It should be noted that the preset temperatures for the DMF and DMSO solutions and the preset immersion times for the disks can be the same or different, and can be adjusted according to the solvent concentration, dosage, and other adaptability factors. Immersing the disks with two different target solvents can make the molten foreign matter on the disks dissolve more cleanly and thoroughly, thereby improving the integrity of the data on the disks.

[0049] In one specific embodiment, the method further includes: transferring the disk without melted foreign matter to a cleanroom, cleaning it with anhydrous ethanol and drying it with a clean cloth to obtain a repaired disk; and installing the repaired disk back into the hard disk cavity.

[0050] Specifically, after obtaining a clean disk free of foreign objects, it is transferred to a cleanroom. The disk is placed flat on the disk holding device of the disk cleaning machine. The control panel rotates the disk clockwise, and the rinsing head drips anhydrous ethanol onto the surface of the disk. After a few seconds, a Class 100 cleanroom cloth above the disk continuously wipes the surface under the control of the silicone pressure roller cleaning module. The disk holding device moves slowly forward under the control of the advance and retractable slider unit, allowing the Class 100 cleanroom cloth to complete the wiping of the entire disk. The cleanliness of the disk is checked through the disk cleanliness observation module of the disk cleaning machine. The steps of dripping anhydrous ethanol and wiping with a Class 100 cleanroom cloth are repeated until the disk is clean, resulting in a repaired disk. Finally, the repaired disk is installed back into the hard drive cavity, completing the hard drive repair. Transferring the clean disk free of foreign objects to a cleanroom for subsequent operations ensures that the disk will not be subject to secondary contamination. Using anhydrous ethanol for cleaning and wiping with a cleanroom cloth ensures that there are no foreign objects remaining on the disk, thereby improving the success rate of hard drive repair.

[0051] In a preferred embodiment, before heating the target solvent to a preset temperature, the method further includes: obtaining the mass of the molten foreign matter; determining the mass of the target solvent to be added based on the mass of the molten foreign matter; and ensuring that the mass of the target solvent to be added is greater than the mass of the target solvent required to completely dissolve the molten foreign matter.

[0052] Specifically, the mass of the disc with the molten foreign matter adhering to it is weighed using an analytical balance, and the mass of the same model disc without the molten foreign matter adhering to it is also weighed using the same analytical balance. The mass of the molten foreign matter is obtained by subtracting the mass of the disc without the molten foreign matter from the mass of the disc with the molten foreign matter adhering to it. The amount of target solvent to be added is determined based on the mass of the molten foreign matter, such as by adding it in a ratio of 1:2 or 1:3, so that the mass of the target solvent added is greater than the mass of the target solvent required to completely dissolve the molten foreign matter. This ensures that the target solvent can completely dissolve the molten foreign matter and that the concentration of molten foreign matter in the target solvent is not too high due to insufficient addition of the target solvent, which would cause it to re-adhere to the disc.

[0053] In one specific embodiment, the hard drive also includes a head landing frame, and the melted foreign matter is the material that adheres to the disk platter after the head landing frame has been baked and melted. Specifically, the hard drive also includes a head landing frame, which is easily melted by high temperatures. After being baked and melted, the head landing frame adheres to the disk platter. This method can also effectively remove the material that has fallen onto the disk platter after the head landing frame has been burned and is adhered to it.

[0054] In a preferred embodiment, the method further includes: obtaining molten foreign matter from the disk platter; and determining the composition of the molten foreign matter using infrared spectroscopy. Before repairing the hard drive, the molten foreign matter on the disk platter is extracted and its composition is determined using infrared spectroscopy, thereby accurately determining the type of target solvent, as well as the preset temperature and preset time, to improve the efficiency of hard drive repair.

[0055] A schematic diagram of a hard disk repair device 20 provided in the second aspect of the present invention is shown below. Figure 2 As shown, it includes: a controller 201, and a pick-up component 202 and a heating component 203 connected to the controller 201; the heating component is used to heat the target solvent to a preset temperature under the control of the controller; the pick-up component is used to pick up the disc and place it in the target solvent under the control of the controller; the target solvent is used to dissolve the polyoxymethylene without dissolving the disc; the pick-up component is also used to remove the disc after the heating component heats the target solvent at the preset temperature for a preset time, and the removed disc is a disc without melted foreign matter.

[0056] Specifically, after receiving the instruction to repair the hard drive, the controller 201 controls the pick-up component 202 to place the container containing the target solvent onto the heating component 203. The controller 201 then controls the heating component 203 to start heating until the target solvent reaches the preset temperature. The controller 201 then controls the pick-up component 202 to place the disk into the container containing the target solvent and starts timing. After the preset time is reached, the controller 201 and the pick-up component 202 remove the disk from the container containing the target solvent to obtain a disk without melted foreign matter. It should be noted that during the timing period, the controller 201 controls the heating component 203 to continue heating to maintain the preset temperature.

[0057] Optionally, the hard drive repair device 20 may also include an identification component and a placement component. The identification component is used to identify the container containing the target solvent, the disk, and the position of the heating component 203, so that the retrieval component 202 can successfully complete the command issued by the controller 201 to retrieve the target object or place the target object in a designated position. The placement component may be located on the heating component 203 and is used to place the target object and also has a heat insulation function. The identification component may be a camera, an infrared device, etc., and the placement component may be a platform, a heat insulation pad, etc. This embodiment does not limit the specific components.

[0058] It is understood that a temperature sensor may also be included to collect the temperature of the target solvent and send the temperature of the target solvent to the controller 201, so that the controller 201 determines that the target solvent has reached the preset temperature, and then controls the pick-up component 202 to put the disk into the container containing the target solvent and start timing.

[0059] The preset time and preset temperature are both preset in the controller 201.

[0060] Optionally, after receiving the instruction to repair the hard drive, the controller 201 controls the pick-up component 202 to place the container containing dimethylformamide on the heating component 203. The controller 201 then controls the heating component 203 to start heating until the dimethylformamide reaches a preset temperature. The controller 201 then controls the pick-up component 202 to place the disk into the container containing dimethylformamide and starts timing. After the preset time is reached, the controller 201 controls the pick-up component 202 to remove the disk from the container containing dimethylformamide. Then, the controller 201 controls the pick-up component 202 to place the disk into a container containing dimethyl sulfoxide and starts timing again. After the preset time is reached, the controller 201 controls the pick-up component 202 to remove the disk from the container containing dimethyl sulfoxide, thus obtaining a disk without melted foreign matter. It should be noted that during the timing period, the controller 201 controls the heating component 203 to continuously heat to maintain the preset temperature.

[0061] Optionally, the hard drive repair device 20 may also include a moving component connected to the controller 201. After obtaining a platter free of foreign objects, the controller 201 controls the picking component 202 to place the platter free of foreign objects onto the placement component of the hard drive repair device 20, and controls the moving component to move to the cleanroom according to the path from the current position. The controller 201 controls the picking component 202 to pick up the platter and place it flat on the platter fixing device of the platter cleaning machine. The controller 201 controls the platter cleaning machine to start running, causing the platter to rotate clockwise and dripping anhydrous ethanol onto the surface of the platter. After a few seconds, the controller 201 controls the Class 100 cleanroom cloth above the platter to continuously wipe the surface of the platter until there are no foreign objects on the platter. Understandably, the user can check the cleanliness of the platter through the observation window of the hard drive repair device 20. Finally, the controller 201 obtains the location of the hard drive cavity from the identification component and controls the picking component 202 to install the repaired platter into the hard drive cavity.

[0062] Optionally, the hard drive repair device 20 may also include a weighing component and a calculation module, such as an analytical balance. After receiving a hard drive repair command, the controller 201 controls the picking component 202 to pick up the disk with the molten foreign matter adhering to it and place it on the weighing component for weighing. The calculation module receives the weighing result returned by the weighing component. The controller 201 controls the picking component 202 to pick up the same type of disk without the molten foreign matter adhering to it and place it on the weighing component for weighing. The weighing component returns the weighing result to the calculation module. The calculation module calculates the difference between the two to obtain the mass of the molten foreign matter, and then calculates the amount of target solvent to be added based on the mass of the molten matter. The amount of target solvent to be added is sent to the weighing component. The controller 201 controls the picking component 202 to place the container on the weighing component, and then controls the picking component 202 to pick up the target solvent and pour it into the container placed on the weighing component until the mass reaches the amount of target solvent to be added received by the weighing component. The controller 201 then controls the picking component 202 to stop pouring.

[0063] Optionally, the hard drive repair device 20 may also include a detection component, such as an infrared spectrometer. Before starting hard drive repair, the controller 201 controls the pick-up component 202 to pick up the platter with the molten foreign matter adhering to it, and controls the pick-up component 202 to acquire the molten foreign matter on the platter. Then, the controller controls the moving component to move to the detection component along the path from its current position, places the acquired molten foreign matter in the test chamber of the detection component, and controls the detection component to start detection to determine the composition of the molten foreign matter. The following will provide a detailed description of a hard drive repair method and device provided by the present invention through specific embodiments.

[0064] Unless otherwise specified, the reagents, materials and instruments used in the following examples are all conventional reagents, materials and instruments in the art, and can be obtained commercially. The reagents involved can also be synthesized by conventional methods in the art.

[0065] Example 1

[0066] 1) The disk 1 containing polyoxymethylene material is heated in an electric heating box until the polyoxymethylene material melts to obtain a disk 1 with molten foreign matter adhering to it; the disk 1 with molten foreign matter adhering to it is placed in DMF at 125°C, immersed for 15 minutes and then removed to obtain a disk without molten foreign matter.

[0067] 2) Transfer the disk without melted foreign matter to a cleanroom, place the disk flat on the disk fixing device of the disk cleaning machine, drip anhydrous ethanol onto the surface of the disk, delay for a few seconds, and then continuously wipe the surface of the disk with a Class 100 cleanroom cloth. Observe the cleanliness of the disk, repeat the steps of dripping anhydrous ethanol and wiping with a Class 100 cleanroom cloth to obtain the repaired disk. Put the repaired disk back into the hard drive cavity to obtain the repaired hard drive.

[0068] Example 2

[0069] The difference between this embodiment and embodiment 1 is that in step 1), the disk with the molten foreign matter bonded to it is placed in dimethyl sulfoxide, while the other conditions are the same as in embodiment 1.

[0070] Example 3

[0071] The difference between this embodiment and Embodiment 1 is that in step 1), the disk with the molten foreign matter adhering to it is placed in a mixture of dimethylformamide and dimethyl sulfoxide, while the other conditions are the same as in Embodiment 1.

[0072] Example 4

[0073] The difference between this embodiment and embodiment 1 is that the temperature of DMF in step 1) is 120°C, while the other conditions are the same as in embodiment 1.

[0074] Example 5

[0075] The difference between this embodiment and embodiment 1 is that the temperature of DMF in step 1) is 135°C, while the other conditions are the same as in embodiment 1.

[0076] Example 6

[0077] The difference between this embodiment and embodiment 1 is that the temperature of DMF in step 1) is 110°C, while the other conditions are the same as in embodiment 1.

[0078] Example 7

[0079] The difference between this embodiment and embodiment 1 is that the temperature of DMF in step 1) is 150°C, while the other conditions are the same as in embodiment 1.

[0080] Example 8

[0081] The difference between this embodiment and embodiment 1 is that the soaking time in step 1) is 10 minutes, while the other conditions are the same as in embodiment 1.

[0082] Example 9

[0083] The difference between this embodiment and embodiment 1 is that the soaking time in step 1) is 20 minutes, while the other conditions are the same as in embodiment 1.

[0084] Example 10

[0085] The difference between this embodiment and embodiment 1 is that the soaking time in step 1) is 5 minutes, while the other conditions are the same as in embodiment 1.

[0086] Example 11

[0087] The difference between this embodiment and embodiment 1 is that the soaking time in step 1) is 30 minutes, while the other conditions are the same as in embodiment 1.

[0088] Example 12

[0089] The difference between this embodiment and embodiment 1 is that in step 1), the disk 1 with the molten foreign matter adhering to it is placed in DMF at 125°C, soaked for 10 minutes and then taken out, and then soaked in dimethyl sulfoxide at 120°C for 10 minutes and then taken out, so as to obtain a disk without molten foreign matter. The other conditions are the same as in embodiment 1.

[0090] Comparative Example 1

[0091] The difference between this comparative example and Example 1 is that in step 1), a mechanical separation method is used to remove the molten foreign matter adhering to the disk, while the other conditions are the same as in Example 1.

[0092] Test case

[0093] I. The following performance tests were performed on the repaired hard drives obtained from the above embodiments and comparative examples:

[0094] 1. Image file extraction

[0095] Test method: Use an image tool to read the data from the repaired hard drive and save it to an image file.

[0096] Table 1

[0097]

[0098]

[0099] As shown in Table 1, a comparison of Examples 1-3 with Comparative Example 1 shows that the method provided in this application can effectively remove molten foreign matter without damaging the integrity of the disk, allowing the image file to be extracted. From Examples 4-7 and Example 1, it can be seen that when the preset temperature is 120-135℃, the disk can be successfully repaired and the image file can be extracted. From Examples 8-12 and Example 1, it can be seen that when the preset time is in the range of 10-20 minutes, the molten foreign matter on the disk is effectively removed and the efficiency of hard drive repair is improved.

[0100] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A hard drive repair method, characterized in that, The hard disk includes platters, and molten foreign matter is bonded to the platters, the molten foreign matter including polyoxymethylene, the method comprising: Heat the target solvent to a preset temperature; The disk is placed in the target solvent and soaked at the preset temperature for a preset time before being removed to obtain a disk without melted foreign matter. The target solvent is used to dissolve the polyoxymethylene without dissolving the disk.

2. The method according to claim 1, characterized in that, The target solvent includes one or more of dichloromethane, dimethylformamide, trichloroethylene, tetrahydrofuran, ammonium hydroxide, and dimethyl sulfoxide.

3. The method according to claim 1, characterized in that, The preset temperature is 120℃~135℃.

4. The method according to claim 1, characterized in that, The preset time is 10 min to 20 min.

5. The method according to claim 1, characterized in that, The step of placing the disk in the target solvent, maintaining the preset temperature for a preset immersion time, and then removing it includes: The disc is placed in dimethylformamide and soaked at the preset temperature for a preset time before being removed. Then the disc is placed in dimethyl sulfoxide and soaked at the preset temperature for a preset time before being removed.

6. The method according to claim 1, characterized in that, The method further includes: The disk without melted foreign matter was transferred to a cleanroom, cleaned with anhydrous ethanol and dried with a clean cloth to obtain the repaired disk. The repaired disk is then reinstalled into the hard drive's disk cavity.

7. The method according to claim 1, characterized in that, Before heating the target solvent to the preset temperature, the method further includes: Obtain the mass of the molten foreign object; The mass of the target solvent added is determined based on the mass of the molten foreign matter; the mass of the target solvent added is greater than the mass of the target solvent required to completely dissolve the molten foreign matter.

8. The method according to claim 1, characterized in that, The hard drive also includes a head landing frame, and the molten foreign matter is a substance that adheres to the disk platter after the head landing frame has been baked and melted.

9. The method according to claim 1, characterized in that, The method further includes: Remove the molten foreign matter from the disk; The composition of the molten foreign matter was determined by infrared spectroscopy.

10. A hard disk repair device, characterized in that, include: A controller, and a picking component and a heating component connected to the controller; The heating component is used to heat the target solvent to a preset temperature under the control of the controller; The picking component is used to pick up the disk under the control of the controller and place it in the target solvent; the target solvent is used to dissolve the polyoxymethylene without dissolving the disk. The picking component is also used to remove the disk after the heating component heats the target solvent at a preset temperature for a preset time, and the removed disk is a disk without melted foreign matter.

Images