Iron plate glue electromagnetic degumming method
Through the electromagnetic degumming method, the heating and cleaning of iron plate glue is automatically controlled, which solves the problems of environmental pollution, time-consuming, low efficiency and high water consumption in the boiling and degumming process, and achieves rapid, efficient and safe removal of iron plate glue.
Patent Information
- Application Number
- CN202510511215.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-23
- Publication Date
- 2025-08-01
AI Technical Summary
The existing boiling and degumming process has problems such as high environmental pollution, long time consumption, low efficiency, low safety and high water consumption, and manual glue removal requires manpower.
The electromagnetic degumming method is adopted, and the heating temperature and travel speed of the iron plate glue are controlled through the electromagnetic heating device. The residual glue is automatically cleaned by a robotic arm, combined with blow-drying treatment to achieve automatic degumming.
It achieves no manual handling, reduces employee labor intensity, improves degumming efficiency, reduces water consumption, improves the cleanliness of iron plate surfaces, and reduces the risk of environmental pollution.
Smart Images
Figure CN120394467A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of electromagnetic degumming, and in particular to an electromagnetic degumming method for iron plate glue. Background Art
[0002] Multi-wire cutting involves wrapping a diamond wire around the guide wheel grooves, restricting the wire's horizontal movement and maintaining a constant cutting position. Multiple diamond wires are then wound in coils to form a wire mesh. Silicon ingots are mounted on a worktable, which advances toward the wires at a set feed rate. The diamond wire slicer simultaneously circulates the wire in either a unidirectional or reciprocating motion, creating a relative grinding motion between the wire and the object being cut, ultimately achieving silicon wafer slicing.
[0003] In order to achieve the above-mentioned cutting process, it is necessary to first glue the plastic plate to the crystal support iron plate with iron plate glue, and then glue the single crystal square rod to the plastic plate with rod glue. After that, the single crystal square rod is fixed in the cutting chamber of the cutting machine through the crystal support iron plate for cutting. Therefore, after the silicon wafer cutting is completed, the silicon wafer and the plastic plate need to be debonded to remove the silicon wafer from the plastic plate without damage, so as to enter the next process.
[0004] The silicon wafer degumming process is generally divided into three steps: spray degumming, ultrasonic cleaning and high-temperature degumming. By adding degumming agent into the degumming tank, the silicon wafer and the iron plate can be separated, thereby realizing silicon wafer degumming.
[0005] After the separation, the iron plates are boiled in water to debond the metal and plastic plates. This process involves boiling and debonding the wafer trays after the slicer has sliced the silicon wafers, separating the iron and plastic plates. First, the pure steel wafer trays are placed in the debonding machine. The debonding water temperature is set at approximately 95-99°C, and the process is boiled for approximately 1200 seconds, with eight trays being processed at a time, taking 150 seconds per tray. After boiling, the hot wafer trays are manually removed from the hot water. After cooling to room temperature, any residual adhesive is scraped off with a spatula. After polishing, the trays are reused.
[0006] The existing water boiling degumming process has the following problems:
[0007] 1. The glue has a pungent smell when it is boiled in water, which causes serious environmental pollution;
[0008] 2. After degumming, glue remains on the iron plate, which requires manual degumming, which consumes manpower and is inefficient.
[0009] 3. The high temperature of the iron plate can easily burn the operator, which is unsafe.
[0010] 4. It takes a long time, 30 minutes to remove the glue, and the efficiency is low.
[0011] 5. High water consumption. In the water-boiling degumming process, water is changed every 12 hours, and a large amount of water is also needed for rinsing during cooling, resulting in water waste. Summary of the Invention
[0012] The object of the present invention is to provide an electromagnetic degumming method for iron plate glue, which includes the following steps:
[0013] Based on the conveyor line, set the traveling speed to control the uniform movement of the product to be degummed;
[0014] Based on the electromagnetic heating plate, set the degumming process parameters, and heat the iron plate glue to the set degumming temperature according to the degumming process parameters;
[0015] Carry out degumming treatment on the product to be degummed based on electromagnetic high-temperature heating;
[0016] Set the degumming time. When the degumming time is reached, take out the plastic plate through the robotic arm, and clean and remove the residual glue on the surface of the iron plate;
[0017] Dry the iron plate after cleaning.
[0018] Further, the traveling speed is 0.02m / s - 0.03m / s.
[0019] Further, the degumming process parameters include electromagnetic degumming current and degumming frequency. The electromagnetic degumming current is 100 - 110A, and the frequency is 18 - 22kh / z.
[0020] Further, the set degumming temperature is 200 - 250°C.
[0021] Further, the degumming time is 20 - 40S.
[0022] Further, the product to be degummed is a product formed by an iron plate and a plastic plate adhered to one side of the iron plate.
[0023] Further, set the degumming process parameters, analyze the components of the thermosensitive iron plate glue, and set the degumming process parameters according to the components of the thermosensitive iron plate glue. The components of the thermosensitive iron plate glue include component A and component B.
[0024] Further, component A contains modified epoxy resin, filler, and diluent; component B contains curing agent, accelerator, and filler, where the filler is calcium carbonate.
[0025] Further, component B includes 30 - 65% sulfur-based adduct, 6 - 8% 2,4,6-tris(dimethylaminomethyl)phenol, 25 - 35% calcium carbonate, and 3 - 8% leveling agent.
[0026] Due to the application of the above technical solutions, the present invention has the following advantages compared with the prior art:
[0027] 1. The present invention uses an electromagnetic degumming device to automatically degum without manual handling, and adjusts the glue properties to achieve the effect that no glue remains on the iron plate after degumming, reaching the effect of eliminating the need for employees to wipe the glue, removing the glue wiping operation step, and reducing the labor intensity of employees.
[0028] 2. Improve the degumming efficiency. By optimizing the electromagnetic degumming process parameters, temperature and traveling speed, the degumming time of the iron plate can be reduced to 30 s, a decrease of 400%, thus achieving the effect of rapid and efficient degumming.
[0029] 3. Improve the cleanliness of the iron plate surface. Use a scraper + brush to clean the residual glue on the surface and sides of the iron plate, and the cleanliness reaches the effect that it can be directly used.
[0030] 4. Reduce water consumption. The degumming completely relies on electromagnetic sheet heating without using water. When finally rinsing the iron plate surface, circulating water can be used for cooling and rinsing to improve the cleanliness of the iron plate surface. Brief Description of the Drawings
[0031] Figure 1 Shows the flowchart of the electromagnetic degumming method for iron plate glue provided by the embodiment of the present invention;
[0032] Figure 2 Shows the structure diagram of the product to be degummed in the embodiment of the present invention. Detailed Embodiments
[0033] In order to enable those skilled in the art to better understand the solution of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present application.
[0034] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily need to be used to describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances for the embodiments of the present application described herein. In addition, the terms "comprising" and "having" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, device, product or equipment that includes a series of steps or units does not necessarily need to be limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or are inherent to these processes, methods, products or equipment.
[0035] It should be noted that, without conflict, the embodiments in the present application and the features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.
[0036] As Figure 1 shown, an electromagnetic degumming method for iron plate glue provided by an embodiment of the present invention includes the following steps:
[0037] S101, set the traveling speed based on the conveyor line, and control the product to be degummed to move at a constant speed; wherein the traveling speed is 0.02 m / s - 0.03 m / s, and 0.025 m / s can also be selected. As long as the traveling speed is within the set range, it meets the requirements;
[0038] S102, set the degumming process parameters based on the electromagnetic heating plate, and heat the iron plate glue to the set degumming temperature based on the degumming process parameters;
[0039] S103, perform degumming treatment on the product to be degummed based on electromagnetic high-temperature heating;
[0040] S104, set the degumming time. When the degumming time is reached, take out the plastic plate through the robotic arm, clean and remove the residual glue on the surface of the iron plate;
[0041] S105, blow-dry the iron plate after cleaning.
[0042] Specifically, the first and second tanks are arranged in sequence as ultrasonic cleaning tanks, which mainly clean the silicon wafers meticulously through ultrasonic cleaning technology to remove stubborn dirt on the silicon wafers. The third, fourth, and fifth tanks are high-temperature degumming tanks for degumming agents, which use degumming agents to perform high-temperature degumming on the silicon wafers to separate the silicon wafers from the crystal carriers.
[0043] For the separation of the iron plate and the plastic plate, an electromagnetic degumming device is used to replace the water-boiling degumming machine. The electromagnetic degumming device includes a support module, a degumming module, and a cooling module. The operation process includes: conveyor assembly line - electromagnetic heating plate heating for degumming - robotic arm taking the plastic plate - scraper removing the residual glue - brush cleaning the surface of the iron plate - compressed air blowing dry for standby.
[0044] The electromagnetic degumming device conveys the iron plate in a flowing manner through the conveyor line and replaces manual degumming with the electromagnetic degumming machine, improving the degumming efficiency and reducing the labor cost at the same time. The electromagnetic degumming device evacuates waste gas and smoke during the operation of the electromagnetic degumming machine through an air extraction system, reducing the harm of the waste gas and smoke during the iron plate degumming to the environment and operators. The temperature of the heating plate is reduced through the cooling module, increasing the continuous working time of the heating plate, improving the degumming efficiency, extending the working time of the heating plate, and reducing the production cost.
[0045] According to the embodiments of the present invention, the degumming process parameters include electromagnetic degumming current and degumming frequency. The electromagnetic degumming current is 100 - 110 A, and the frequency is 18 - 22 kHz.
[0046] According to the embodiments of the present invention, the degumming temperature is set to 200 - 250 °C.
[0047] According to the embodiments of the present invention, the degumming time is 20 - 40 S.
[0048] It should be noted that the electromagnetic degumming process is optimized to improve the degumming efficiency and reduce energy consumption. During degumming, electromagnetic heating is used, with an electromagnetic frequency of 20 KHZ and a current of 20 A. It takes 30 s for the iron plate to be heated from the start to the end of heating. Boiling water degumming takes 150 s, and the time is reduced by 120 s. The plate bends and deforms during the heating process, peels off from the surface of the iron plate, and the glue on the iron plate is also peeled off from the surface of the iron plate, achieving minimal residual glue on the iron plate.
[0049] As Figure 2 shown, the product to be degummed is a product formed by an iron plate and a plastic plate adhered to one side of the iron plate.
[0050] Removal of residual glue on the iron plate and surface cleaning: After degumming, the iron plate enters the iron plate grinding device. Using a spatula and a brush, the surface of the iron plate is cleaned, and it is synchronously spray-cleaned and dried to achieve the goal of recycling the iron plate.
[0051] According to the embodiments of the present invention, the degumming process parameters are set, and the components of the thermosensitive iron plate glue are analyzed. According to the components of the thermosensitive iron plate glue, the degumming process parameters are set. The components of the thermosensitive iron plate glue include component A and component B.
[0052] According to the embodiments of the present invention, component A contains modified epoxy resin, filler, and diluent; component B contains curing agent, accelerator, and filler, where the filler is calcium carbonate.
[0053] According to the embodiments of the present invention, component B includes 30 - 65% sulfur-based adduct, 6 - 8% 2,4,6-tris(dimethylaminomethyl)phenol, 25 - 35% calcium carbonate, and 3 - 8% leveling agent.
[0054] It should be noted that the thermosensitive iron plate glue is used to improve the adhesion to the plastic plate and reduce the adhesion performance to the iron plate. The iron plate glue is composed of component A and component B. Component A contains modified epoxy resin, filler, and diluent; component B contains curing agent, accelerator, and filler, where the filler is calcium carbonate. In this case, the performance of the glue is improved by increasing 5% of high-strength resin to enhance the glue strength and the adhesion to the plastic plate. At the same time, 3% of leveling agent is added to make the glue have better fluidity, reduce the void glue between the iron plate and the plate, thereby reducing the residue of the glue on the surface of the iron plate and achieving the effect of glue-free cleaning.
[0055] Boiling degumming mainly makes the glue layer soft through high-temperature hot water at 100 °C. The adhesive force of the glue rapidly decreases, the glue absorbs water and swells, causing the glue surface to separate; the thermosensitive iron plate glue mainly relies on the heating plate to instantaneously heat to 200 °C, causing the plastic plate to deform due to heat. At the same time, the surface temperature of the iron plate reaches 130 °C, making the glue layer soft due to heat, the adhesive force decreases, and the glued surface separates.
[0056] After the bonded silicon rod is cured for ≥2H, it is transported to the slicing machine, and the silicon wafer is cut using a diamond wire. The silicon rod is cut for about 130 minutes to complete the cutting, and the silicon rod is cut into about 4500 silicon wafers with a thickness of 130um. The iron plate is fed into the degumming tooling and transported to the degumming process for degumming.
[0057] In summary, through the electromagnetic degumming device of the present invention, automatic degumming is achieved without manual handling, and the performance of the glue is adjusted to ensure that no glue remains on the iron plate after degumming, achieving the effect of employees not having to wipe the glue, removing the glue-wiping operation step, and reducing the labor intensity of employees.
[0058] Improve the degumming efficiency. By optimizing the electromagnetic degumming process parameters, temperature and traveling speed, the iron plate degumming time can be reduced to 30s, a decrease of 400%, thus achieving the effect of fast and efficient degumming.
[0059] Improve the cleanliness of the iron plate surface. Use a spatula + brush to clean the residual glue on the surface and side of the iron plate, and the cleanliness reaches the effect that it can be directly used.
[0060] Reduce water consumption. Degumming completely relies on electromagnetic sheet heating without using water. When finally rinsing the iron plate surface, circulating water can be used for cooling and rinsing to improve the cleanliness of the iron plate surface.
[0061] The technical features of the above embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.
[0062] The above is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention can easily think of changes or substitutions, which should all be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims
1. An electromagnetic debonding method for iron plate glue, characterized in that, It includes the following steps: Based on the conveyor line, set the traveling speed and control the product to be degummed to move at a constant speed; Based on the electromagnetic heating plate, set the degumming process parameters, and heat the iron plate glue to the set degumming temperature based on the degumming process parameters; Carry out degumming treatment on the product to be degummed based on electromagnetic high-temperature heating; Set the degumming time. When the degumming time is reached, take out the plastic plate through the robotic arm, clean and scrape the residual glue on the surface of the iron plate; Blow-dry the iron plate after cleaning is completed.
2. The electromagnetic debonding method of iron plate glue according to claim 1, characterized in that, The traveling speed is 0.02m / s - 0.03m / s.
3. The electromagnetic debonding method of iron plate glue according to claim 2, characterized in that, The degumming process parameters include electromagnetic degumming current and degumming frequency. The electromagnetic degumming current is 100 - 110A, and the frequency is 18 - 22kh / z.
4. The electromagnetic degumming method of iron plate glue according to claim 2, characterized in that, The set degumming temperature is 200 - 250°C.
5. The electromagnetic debonding method of iron plate glue as described in claim 1, characterized in that, The degumming time is 20 - 40S.
6. The electromagnetic degumming method of iron plate glue according to claim 1, characterized in that, The product to be degummed is a product formed by an iron plate and a plastic plate adhered to one side of the iron plate.
7. The electromagnetic debonding method of iron plate glue as described in claim 1, characterized in that, Set the degumming process parameters, analyze the components of the thermosensitive iron plate glue, and set the degumming process parameters according to the components of the thermosensitive iron plate glue. The components of the thermosensitive iron plate glue include component A and component B.
8. The electromagnetic debonding method of iron plate glue according to claim 1, characterized in that, Component A contains modified epoxy resin, filler, and diluent; Component B contains curing agent, accelerator, and filler, where the filler is calcium carbonate.
9. The electromagnetic debonding method of iron plate glue according to claim 1, characterized in that, Component B includes 30 - 65% sulfur-based adduct, 6 - 8% 2,4,6-tris(dimethylaminomethyl)phenol, 25 - 35% calcium carbonate, and 3 - 8% leveling agent.