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An automatic proportioning system for boron carbide grinding liquid

An automatic proportioning, boron carbide technology, applied in mixer accessories, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of difficult proportioning, poor pertinence, complicated measurement and calculation work, etc. The effect of saving resources

Active Publication Date: 2020-12-22
CHONGQING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the grinding process of LED sapphire substrate wafers, in order to realize the recycling of resources, the materials (the components are boron carbide and water) are obtained through the recycling system, and then the grinding liquid is mixed. The measurement and calculation work is complicated and the mixing ratio is difficult.
At the same time, although there are many researches on automatic proportioning methods in other technological fields, the reference and application value for the proportioning of boron carbide grinding fluid is not high and the pertinence is not strong

Method used

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  • An automatic proportioning system for boron carbide grinding liquid
  • An automatic proportioning system for boron carbide grinding liquid
  • An automatic proportioning system for boron carbide grinding liquid

Examples

Experimental program
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Embodiment 1

[0039] see figure 2 , This embodiment discloses an automatic proportioning system for boron carbide grinding fluid, including a stirring and proportioning device 1 , a boron carbide adding device 2 , a water adding device 3 , a suspension adding device 4 and a control system 5 .

[0040] The control system 5 includes a control panel, a PLC controller 501 , a distance measuring instrument 502 and two weighing instruments 503 . The weighing instrument 503 is an S-type tension pressure sensor load cell. The PLC controller 501 communicates with the control panel through a circuit system. The control panel has a touch display.

[0041] see figure 1 , the PLC controller 501 is equipped with an M-V (mass-volume) ratio algorithm. The M-V proportioning algorithm refers to measuring the total mass of the material after removing the barrel skin and The total volume; thus the respective mass and volume of water and boron carbide in the device can be calculated and deduced; then the ...

Embodiment 2

[0066] This embodiment discloses a basic boron carbide grinding liquid automatic proportioning system, including a stirring and proportioning device 1 , a boron carbide adding device 2 , a water adding device 3 , a suspension adding device 4 and a control system 5 .

[0067] The control system 5 includes a control panel, a PLC controller 501 , a distance measuring instrument 502 and two weighing instruments 503 . The PLC controller 501 communicates with the control panel through a circuit system. The PLC controller 501 has a built-in M-V ratio algorithm.

[0068] The stirring and batching device 1 includes a batching bucket 101 placed on a weighing instrument 503 , a stirrer 103 and a stirring motor 102 . The top of the batching barrel 101 is provided with a feed port. The stirring motor 102 is installed above the batching barrel 101 . The rangefinder 502 is arranged above the batching bucket 101 . The rangefinder 502 measures the height of the inner space of the batching ...

Embodiment 3

[0074] The main structure of this embodiment is the same as that of Embodiment 2, wherein the control panel has a touch screen.

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Abstract

The invention provides an automatic proportioning system for boron carbide grinding liquid. It solves the problems of low efficiency and low precision of manual proportioning of traditional boron carbide grinding fluid. The system mainly includes a mixing and batching device, an automatic boron carbide adding device, an automatic water adding device, an automatic suspension adding device and a control system. The weighing instrument and range finder of the mixing and batching device (the volume is estimated by the empty height distance) will measure and transmit the data to the control system. , add a certain amount of water through the automatic water adding device; if the concentration is low, add quantitative boron carbide through automatic adding boron carbide; then add quantitative suspension through the automatic adding suspension device to realize boron carbide, water and suspension Quantitative addition, and finally realize the proportioning mixing and stirring of materials by controlling the stirring motor, and complete the automatic proportioning of boron carbide grinding liquid.

Description

technical field [0001] The invention relates to the technical field of boron carbide grinding technology for LED sapphire substrates, in particular to an automatic proportioning system for boron carbide grinding liquid. Background technique [0002] Boron carbide grinding fluid is mainly used as a mixed fluid in the grinding process of LED sapphire substrate wafers. Boron carbide grinding liquid is usually composed of three parts: boron carbide, water, suspension (the main components are diethanolamine, triethanolamine and propylene glycol, etc.). [0003] The traditional method of proportioning boron carbide grinding liquid is completed through steps such as manual weighing and calculation, which has low efficiency and large errors. There are relatively few studies on the automatic proportioning method of boron carbide grinding liquid in the prior art. In the grinding process of LED sapphire substrate wafers, in order to realize the recycling of resources, the materials (...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01F15/04B01F15/00B01F3/12
CPCB01F23/53B01F35/2202B01F35/2132B01F35/832B01F35/82B01F35/833
Inventor 曹华军刘虎葛威威刘龙万银忠宋丹丹邱德贵朱林全刘康
Owner CHONGQING UNIV