Cooling liquid dispersing performance evaluation device

Abstract

The utility model provides a cooling liquid dispersing performance evaluation device, belongs to the technical field of machinery, and solves the problem that an existing cooling liquid detection evaluation device is inconvenient to detect. The device for evaluating the dispersion performance of the cooling liquid comprises a workbench, a magnetic stirrer is placed on the workbench, a row of sample pools are uniformly distributed on the magnetic stirrer, mixed liquid containing the cooling liquid is added into the sample pools, and the magnetic stirrer drives the mixed liquid in the sample pools to stir through magnetons; a laser emission window is arranged on the end face, facing the magnetic stirrer, of the laser emitter; a plurality of detection windows are formed in the end face, facing the magnetic stirrer, of the integrated detector, and one detection window can receive laser emitted by the laser emission window and penetrating through the sample pools; the display is located at one end of the magnetic stirrer, the display is communicated with the integrated sensor, and each detection window can feed back detected data to the display. The utility model has the characteristic of convenient operation.

Description

Technical Field

[0001] The utility model belongs to the field of mechanical technology and relates to a cooling liquid dispersion performance evaluation device, in particular to a cooling liquid dispersion performance evaluation device capable of performing multi-index detection. Background Art

[0002] Coolant is an industrial liquid generally used in the process of metal cutting and grinding to cool and lubricate tools and workpieces. It is used in the multi-wire cutting process of precision materials such as silicon wafers, crystals, quartz, glass, and ceramics. It plays the role of suspension, cooling, and lubrication during the cutting process to ensure that the cutting process proceeds smoothly.

[0003] As an auxiliary consumable product used in the process of diamond wire cutting silicon wafers, the demand for coolant is gradually increasing with the development of the photovoltaic solar energy industry and the silicon wafer processing industry. In order to meet the efficient and high-quality production of silicon wafers, one of the characteristics that the coolant must have is better dispersibility. The excellent dispersibility of the coolant means that it can fully disperse the silicon powder produced by cutting, greatly reduce the agglomeration of silicon powder on the silicon wafer, and thus reduce the proportion of abnormal hanging wires. And reducing the agglomeration of silicon powder can also solve the abnormality of difficult insertion of wafers in the subsequent cleaning process, reduce the proportion of dirty wafers, and thus improve the qualified rate of the finished coolant in one inspection.

[0004] Most of the existing coolant detection devices can only perform corresponding detection on the coolant through a certain indicator, and it is necessary to pass multiple other tests before evaluation. The detection is inconvenient and difficult to meet the needs of actual detection work.

[0005] In summary, in order to solve the shortcomings of existing coolant detection and evaluation devices, the utility model designs a coolant dispersion performance evaluation device with reasonable structure and convenient operation. Summary of the invention

[0006] The utility model provides a cooling liquid dispersion performance evaluation device with reasonable structure and convenient operation to solve the problems existing in the prior art.

[0007] The purpose of the utility model can be achieved through the following technical solutions: A coolant dispersion performance evaluation device, comprising:

[0008] A workbench is provided with a magnetic stirrer, a row of sample pools are evenly distributed on the magnetic stirrer, and a mixed liquid containing a coolant is added to the sample pools, and the magnetic stirrer drives the mixed liquid in each sample pool to stir through a magnet;

[0009] A laser emitter is located on one side of the magnetic stirrer, and a laser emission window is provided on the end surface of the laser emitter facing the magnetic stirrer;

[0010] An integrated detector is located at the other side of the magnetic stirrer, and a plurality of detection windows are provided on the end surface of the integrated detector facing the magnetic stirrer, wherein one detection window is capable of receiving the laser emitted by the laser emission window and passing through each sample cell;

[0011] The display is located at one end of the magnetic stirrer. The display is connected to the integrated sensor, and each detection window can feed back the detected data to the display.

[0012] As a further improvement of the present invention, two operating knobs are provided at the end of the magnetic stirrer, and a display screen is provided between the two operating knobs.

[0013] As a further improvement of the present invention, a plurality of magnetic circles are arranged on the panel of the magnetic stirrer, and a sample pool can be placed on each magnetic circle.

[0014] As a further improvement of the present case, the above-mentioned detection windows are respectively a transmittance detection window, a turbidity detection window and a liquid level detection window, and the transmittance detection window is arranged corresponding to the above-mentioned laser emission window.

[0015] As a further improvement of the present invention, the above-mentioned detection windows are respectively a dual detection window and a liquid level detection window, and the dual detection window can simultaneously detect the light transmittance and turbidity of the mixed liquid.

[0016] As a further improvement of the present invention, a plurality of number identifications corresponding to each sample pool are displayed on the display, and a plurality of category identifications corresponding to each detection window are also displayed on the display.

[0017] As a further improvement of the present invention, the ratio of the coolant to the mixed liquid in each sample cell is consistent.

[0018] Compared with the prior art, the utility model has a reasonable structural arrangement. Through the coordinated arrangement of the laser emitter and the integrated detector, it can simultaneously perform multiple index tests on the mixed liquid containing the coolant. At the same time, the arrangement of the magnetic stirrer can detect multiple sample pools, greatly improving the detection efficiency. In addition, the arrangement of the display facilitates the operator to intuitively observe the conditions of each sample pool and record various data in real time. The operation is convenient and the use effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the utility model.

[0020] Figure 2 yes Figure 1 Schematic diagram of the structure from another perspective.

[0021] Figure 3 It is a structural schematic diagram of the second embodiment of the present utility model.

[0022] In the figure, 10, magnetic stirrer; 11, magnetic coil; 12, operating knob; 13, display screen; 20, laser emitter; 21, laser emission window; 30, integrated detector; 31, transmittance detection window; 32, turbidity detection window; 33, liquid level detection window; 34, double detection window; 40, display; 41, number identification; 42, category identification; 50, sample pool. DETAILED DESCRIPTION

[0023] The technical solution of the utility model is further described below in conjunction with the embodiments and drawings.

[0024] like Figure 1 and Figure 2 As shown, the coolant dispersion performance evaluation device comprises:

[0025] A workbench is provided with a magnetic stirrer 10, a row of sample pools 50 are evenly distributed on the magnetic stirrer 10, and a mixed liquid containing a coolant is added to the sample pools 50. The magnetic stirrer 10 drives the mixed liquid in each sample pool 50 to stir through a magnet (not shown in the figure);

[0026] The laser emitter 20 is located at one side of the magnetic stirrer 10, and a laser emission window 21 is provided on the end surface of the laser emitter 20 facing the magnetic stirrer 10;

[0027] The integrated detector 30 is located at the other side of the magnetic stirrer 10. The end surface of the integrated detector 30 facing the magnetic stirrer 10 is provided with a plurality of detection windows, one of which can receive the laser emitted by the laser emission window 21 and passing through each sample cell 50;

[0028] The display 40 is located at one end of the magnetic stirrer 10 . The display 40 is connected to the integrated sensor, and each detection window can feed back the detected data to the display 40 .

[0029] Most of the existing coolant detection devices can only perform corresponding detection on the coolant through a certain indicator, and it is necessary to pass multiple other tests before evaluation. The detection is inconvenient and difficult to meet the needs of actual detection work.

[0030] To this end, the utility model provides a coolant dispersion performance evaluation device, which can simultaneously perform multiple index tests on a mixed liquid containing coolant through the coordinated arrangement of a laser emitter 20 and an integrated detector 30; at the same time, the arrangement of a magnetic stirrer 10 can detect multiple sample pools 50, greatly improving the detection efficiency; in addition, the arrangement of a display 40 facilitates the operator to intuitively observe the conditions of each sample pool 50 and record various data in real time, and the operation is convenient and the use effect is good.

[0031] Specifically, according to actual needs, a magnetic stirrer 10 of appropriate specifications is selected to facilitate the setting of an appropriate number of sample pools 50 (beakers). In this embodiment, the preferred magnetic stirrer 10 is a constant temperature magnetic stirrer 10, which stirs the mixed liquid at a set temperature to facilitate rapid mixing. At the same time, different temperatures can be adjusted for detection, and the operability is strong.

[0032] When the test begins, a certain amount of pure water is first added to each sample pool 50, and silicon powder particles and different types of coolants are added in a certain proportion, so as to conduct a comparative test and detect the dispersion of different coolants.

[0033] Preferably, the liquid level height of each sample pool 50 in the initial state is consistent, and there is no overflow during the stirring process. Here, the ratio of coolant to mixed liquid in each sample pool 50 is consistent, that is, the content of coolant in the sample pool 50 remains consistent, which is convenient for comparative detection.

[0034] The magnetic particles are first added to the sample pool 50, and the magnetic stirrer 10 drives the magnetic particles in each sample pool 50 to rotate, thereby driving the mixed liquid in each sample pool 50 to stir. The magnetic particles themselves will not affect the solubility of the mixed liquid in the sample pool 50, and will not affect the experimental results.

[0035] During operation, the magnetic stirrer 10 is first started to stir each sample pool 50. After a certain period of time, the magnetic stirrer 10 is turned off, and the sample pool 50 is left to stand for a period of time. Then, the laser transmitter 20 is turned on, and the emitted laser passes through each sample pool 50 and reaches the integrated detector 30. At this time, the corresponding detection window on the integrated detector 30 receives the laser signal and transmits the corresponding data to the display 40 for display, thereby realizing the detection of relevant indicators.

[0036] In this embodiment, it is preferred that each window is arranged in a strip shape, and the working range can cover each sample pool 50 .

[0037] Preferably, two operating knobs 12 are provided at the end of the magnetic stirrer 10 , and a display screen 13 is provided between the two operating knobs 12 .

[0038] Furthermore, a plurality of magnetic rings 11 are disposed on the panel of the magnetic stirrer 10 , and a sample pool 50 can be placed on each magnetic ring 11 .

[0039] In this embodiment, a magnetic coil 11 is preferably provided on the panel of the magnetic stirrer 10. The magnetic coil 11 generates a magnetic field, thereby driving the magnets in each sample pool 50 to rotate under the action of the magnetic field (magnetic force), thereby stirring the mixed liquid in the sample pool 50. The specific number of magnetic coils 11 is not limited here.

[0040] Among them, the rotation speed and stirring time of the magnetic stirrer 10 can be adjusted by turning the operating knob 12 and displayed on the display screen 13, and can be set according to different situations. In this embodiment, by adjusting the variables, the dispersion conditions under various states can be detected, and more detection data can be obtained, which is convenient for selecting a suitable coolant at a later time.

[0041] Preferably, the detection windows are respectively a transmittance detection window 31 , a turbidity detection window 32 and a liquid level detection window 33 , and the transmittance detection window 31 is arranged corresponding to the laser emission window 21 .

[0042] In this embodiment, the detection windows are preferably a transmittance detection window 31, a turbidity detection window 32 and a liquid level detection window 33 from top to bottom, and the integrated detector 30 is provided with a transmittance detector (not shown in the figure), a turbidity sensor (not shown in the figure) and a liquid level sensor (not shown in the figure) corresponding to each detection window, and the laser transmitter 20 is provided with a laser instrument (not shown in the figure). The laser instrument can automatically correct the optical path, so that the detection window can receive the laser signal.

[0043] After the sample pool 50 has been standing for a period of time, some of the silicon powder particles inside will settle, so that the mixed liquid in the sample pool 50 will have an obvious upper and lower layer dividing line. The silicon powder concentration in the upper layer of liquid is relatively low, and the laser penetration is relatively good. Therefore, the dispersion of silicon powder particles in the coolant can be known by detecting the light transmittance of the upper layer of liquid.

[0044] The greater the transmittance, the clearer the upper liquid is, and the less silicon powder is dispersed in the coolant, that is, the worse the ability of the coolant to disperse silicon powder particles is. Conversely, the better the ability of the coolant to disperse silicon powder particles is.

[0045] Preferably, the laser emission window 21 and the transmittance detection window 31 are arranged correspondingly, and are both arranged to be aligned with the upper liquid of the sample pool 50, so as to facilitate the detection of transmittance.

[0046] It is worth mentioning that the amount of silicon powder dispersed in the coolant can also be determined by detecting the turbidity of the upper liquid. Preferably, the turbidity detection window 32 is also arranged to align with the upper liquid of the sample pool 50 .

[0047] The smaller the turbidity, the clearer the upper liquid, and the less silicon powder is dispersed in the coolant, that is, the worse the ability of the coolant to disperse silicon powder particles is. Conversely, the better the ability of the coolant to disperse silicon powder particles is.

[0048] In addition, the detection can also be carried out by detecting the stratification of the mixed liquid. The more silicon powder is dispersed in the coolant, the less sedimentation occurs, and the height of the upper and lower liquid stratifications in the sample pool 50 is closer to the bottom of the sample pool 50. At this time, the height of the upper and lower dividing lines of the sample pool 50 can be detected through the liquid level detection window 33. Preferably, the liquid level detection window 33 is aligned with the lower liquid position of the sample pool 50.

[0049] The higher the height of the upper and lower dividing lines, the more silicon powder particles settle, and the less silicon powder particles are dispersed in the coolant, that is, the coolant's ability to disperse silicon powder particles is worse. Conversely, the coolant's ability to disperse silicon powder particles is better.

[0050] In actual operation, a comprehensive judgment can be made based on the transmittance of the mixed liquid in the sample pool 50, the size of the turbidity, and the height of the liquid level boundary line to select a suitable coolant.

[0051] like Figure 3 It is a schematic diagram of the structure of the second embodiment of the present invention. Furthermore, the detection windows are respectively a double detection window 34 and a liquid level detection window 33. The double detection window 34 can detect the transmittance and turbidity of the mixed liquid at the same time.

[0052] Since the objects of light transmittance and turbidity detection are both the upper layer of liquid in the sample pool 50, in actual operation, the light transmittance detector and the turbidity sensor can be installed together, and the upper layer of liquid in the sample pool 50 can be tested for relevant indicators by the double detection window 34. The liquid level detection window 33 is still aimed at the lower layer of liquid in the sample pool 50 to detect the height of the boundary between the upper and lower layers.

[0053] Preferably, a plurality of number identifications 41 corresponding to each sample pool 50 are displayed on the display 40 , and a plurality of category identifications 42 corresponding to each detection window are also displayed on the display 40 .

[0054] In actual work, the data obtained by the detection is transmitted to the display 40 by the transmittance detector, turbidity sensor and liquid level sensor. The display 40 indicates the corresponding sample pool 50 serial number by setting the label corresponding to the sample pool 50, and further indicates the corresponding transmittance, turbidity and boundary height data by the category mark 42, so that the operator can intuitively observe the detection data of each sample pool 50, which is convenient for the subsequent selection of the appropriate coolant product. The specific position setting of the number mark 41 and the category mark 42 can be displayed according to the actual usage habits, and is not limited here.

[0055] It is worth mentioning that after the coolant and silicon powder particles are stirred for a period of time, the silicon powder particles will gradually settle. The utility model actually detects relevant indicators of the mixed liquid during this period, detects and records data in real time, and evaluates the ability of different coolants to disperse silicon powder particles based on the detected data. As time goes by, the silicon powder particles will eventually settle to the bottom of the sample pool 50.

[0056] The coolant dispersion performance evaluation device has a reasonable structure. Through the coordinated arrangement of the laser emitter 20 and the integrated detector 30, it can simultaneously perform multiple index tests on the mixed liquid containing the coolant. At the same time, the arrangement of the magnetic stirrer 10 can detect multiple sample pools 50, greatly improving the detection efficiency. In addition, the arrangement of the display 40 facilitates the operator to intuitively observe the conditions of each sample pool 50 and record various data in real time, which is convenient to operate and has a good use effect.

[0057] The preferred embodiments of the present invention are described herein, but the protection scope of the present invention is not limited thereto. Any modification or supplement or replacement of the specific embodiments described by technicians in the field of the present invention shall be included in the protection scope of the present invention.

Claims

1. A coolant dispersion performance evaluation device, characterized in that: include: A workbench is provided with a magnetic stirrer, a row of sample pools are evenly distributed on the magnetic stirrer, and a mixed liquid containing a coolant is added to the sample pools, and the magnetic stirrer drives the mixed liquid in each sample pool to stir through a magnet; A laser emitter is located on one side of the magnetic stirrer, and a laser emission window is provided on the end surface of the laser emitter facing the magnetic stirrer; An integrated detector is located at the other side of the magnetic stirrer, and a plurality of detection windows are provided on the end surface of the integrated detector facing the magnetic stirrer, wherein one detection window is capable of receiving the laser emitted by the laser emission window and passing through each sample cell; The display is located at one end of the magnetic stirrer. The display is connected to the integrated sensor, and each detection window can feed back the detected data to the display.

2. A coolant dispersion performance evaluation device according to claim 1, characterized in that: Two operating knobs are arranged at the end of the magnetic stirrer, and a display screen is arranged between the two operating knobs.

3. The coolant dispersion performance evaluation device according to claim 1, characterized in that: A plurality of magnetic circles are arranged on the panel of the magnetic stirrer, and a sample pool can be placed on each magnetic circle.

4. The coolant dispersion performance evaluation device according to claim 1, characterized in that: The above-mentioned detection windows are respectively a transmittance detection window, a turbidity detection window and a liquid level detection window, and the transmittance detection window is arranged corresponding to the above-mentioned laser emission window.

5. The coolant dispersion performance evaluation device according to claim 1, characterized in that: The above-mentioned detection windows are respectively a double detection window and a liquid level detection window, and the double detection window can simultaneously detect the light transmittance and turbidity of the mixed liquid.

6. The coolant dispersion performance evaluation device according to claim 1, characterized in that: A plurality of number identifications corresponding to each sample pool are displayed on the display, and a plurality of category identifications corresponding to each detection window are also displayed on the display.

7. The coolant dispersion performance evaluation device according to claim 1, characterized in that: The ratio of coolant to mixed liquid in each sample cell is consistent.

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