Manufacturing method for bonding silicon steel sheets

Abstract

The present invention discloses a method for manufacturing silicon steel sheets, which sequentially includes a material preparation step, a heating step, and a stacking and bonding step. The material preparation step involves having a plurality of silicon steel sheets, each of which has a thin adhesive film. Then, using a heater provided in the heating step, part or all of the adhesive film on each silicon steel sheet is heated, causing the heated portion of the adhesive film to become sticky. The heated silicon steel sheets are then stacked one by one (i.e., the stacking and bonding step), so that any two silicon steel sheets are tightly bonded together through the adhesive film, thus forming a silicon steel sheet core. Therefore, the heater allows for rapid and uniform heating and stacking and bonding of each silicon steel sheet, ensuring the bonding quality of the stacked silicon steel sheets and effectively reducing energy consumption.

Description

Technical Field

[0001] The present invention relates to a silicon steel sheet stacking, and in particular to a silicon steel sheet bonding manufacturing method. Prior Art

[0002] It is found that the silicon steel sheet core is one of the indispensable main components in motor or transformer products. It is mainly used as a medium for transmitting magnetic force in motors or transformers. The silicon steel sheet core is made of multiple silicon steel sheets of the same shape stacked on top of each other.

[0003] Referring to FIG. 1 and FIG. 2, a conventional method 1 for manufacturing a silicon steel sheet core includes a material preparation step 11, a stacking step 12 and a heating and bonding step 13; wherein the material preparation step 11 is provided with a plurality of silicon steel sheets, each of which has a metal body and a plurality of adhesive films disposed on the metal body, and the adhesive films are hard at room temperature and need to be heated to produce viscosity; in addition, the stacking step 12 is to stack the silicon steel sheets one by one to a required thickness; finally, the heating and bonding step 13 is provided with a heating furnace, which can be used for placing the stacked silicon steel sheets, and at this time, the heating furnace is used for heating so that the adhesive films in the silicon steel sheets are heated to produce viscosity, so that any two silicon steel sheets are bonded and fixed through the adhesive films to form a whole silicon steel sheet core.

[0004] However, after actual implementation, it is found that since the stacking step 12 is to stack the plurality of silicon steel sheets to a certain thickness, and finally use the heating furnace to heat and bond the silicon steel sheets, however, because the silicon steel sheets are stacked and then heated, in order to ensure that the silicon steel sheets are evenly heated and tightly bonded, the heat conduction of the silicon steel sheets will inevitably cause the outermost silicon steel sheet and the inner silicon steel sheet to have different temperature differences, that is, the temperature of the silicon steel sheet located in the outer layer will be higher, while the temperature of the silicon steel sheet in the inner layer will be lower, so that it is impossible to bond and fix evenly, resulting in poor bonding effect and quality, and affecting the subsequent conduction of magnetic force of the silicon steel sheet core. In addition, the heating and bonding step 13 is to use the heating furnace for heating, which cannot heat each silicon steel sheet evenly, and generates a lot of unnecessary waste heat, which will also cause consumption of heating energy, resulting in poor energy efficiency, which really needs to be improved. Summary of the invention

[0005] Therefore, the purpose of the present invention is to provide a manufacturing method for bonding silicon steel sheets, which can improve the bonding quality of silicon steel sheets and improve energy efficiency.

[0006] Therefore, the present invention provides a manufacturing method for combining silicon steel sheets, which includes a material preparation step, a heating step and a stacking and bonding step; wherein the material preparation step is provided with a plurality of silicon steel sheets, and each silicon steel sheet has a metal body and a coating film disposed on the surface of the metal body; in addition, the heating step is performed through a heater to heat the coating film of the silicon steel sheet through the heater so that the coating film is heated to generate viscosity, and as for the stacking and bonding step, The silicon steel sheets are stacked one by one after being heated, so that any two silicon steel sheets in the silicon steel sheet core are tightly bonded through the adhesive film, and the manufacture of a silicon steel sheet core is completed; therefore, each silicon steel sheet is first heated by the heater, so that the temperature of each silicon steel sheet can be evenly heated to the required heating temperature, and then the silicon steel sheets are stacked one by one, which can ensure the bonding quality of the silicon steel sheet core and avoid excessive heating energy consumption, thereby improving energy utilization efficiency. Simple diagram description

[0007] FIG. 1 is a flow chart of a first preferred embodiment of the prior art. FIG. 2 is a flow chart of a first preferred embodiment of the present invention. Implementation

[0008] The above-mentioned and other technical contents, features and effects of the present invention will be clearly understood in the following detailed description of the preferred embodiments with reference to the drawings.

[0009] Referring to FIG. 1 , a preferred embodiment of the present invention, the silicon steel sheet bonding manufacturing method 3 includes a material preparation step 31, a heating step 32, and a stacking and bonding step 33; wherein the material preparation step 31 is provided with a plurality of silicon steel sheets, each of which has a metal body, and a plurality of adhesive films disposed on the metal body, and the adhesive films are hard and non-sticky at room temperature, and become sticky after being heated to a certain temperature.

[0010] Still continuing with the above, the heating step 32 has a heater, which irradiates and heats the silicon steel sheet one by one, so that the glue film on the silicon steel sheet is heated to generate viscosity. In this embodiment, the heater heats the silicon steel sheet to between 145 and 155°C, and the optimal temperature is 150°C as an example. In this embodiment, the heater can be a laser heater, which can accurately heat the glue film on the silicon steel sheet by irradiation, and can accurately control the heating position, thereby avoiding excessive heating energy consumption, thereby improving energy efficiency.

[0011] Finally, the stacking and bonding step 33 is to stack each of the heated silicon steel sheets to a desired thickness, so that when each silicon steel sheet is kept at a temperature after the heating step 32, the coating film of each silicon steel sheet becomes sticky, and the heated silicon steel sheets are immediately stacked one by one, so that the coating film of each silicon steel sheet is bonded to the coating film of another silicon steel sheet to form a silicon steel sheet core of a desired thickness, and the manufacturing of the silicon steel sheet core is completed; therefore, through the manufacturing method 3 of combining the silicon steel sheets, since the silicon steel sheet is a First, the heater is used for irradiation and heating, so that each silicon steel sheet can be evenly heated to a certain temperature, which can avoid the influence of heat conduction of the conventional method of first stacking and then heating, so that the subsequent silicon steel sheets can be bonded more evenly, and the bonding effect and bonding quality are improved; at the same time, the heater can heat one by one and use the laser heater to heat the area irradiated by light, which can accurately heat the required heating position, avoid unnecessary heating energy consumption, and will not generate unnecessary waste heat like the conventional heating furnace, which can effectively improve the energy efficiency.

[0012] To summarize the above, the manufacturing method of combining silicon steel sheets of the present invention mainly lies in that the coating film of each silicon steel sheet is first heated by a heater to make the coating film produce viscosity (i.e., the heating step), and then each heated silicon steel sheet is stacked one by one, so that any two silicon steel sheets in the silicon steel sheet core are tightly bonded through the coating film, thereby completing the manufacturing process of a silicon steel sheet core. The silicon steel sheets are bonded after being uniformly heated by the heater one by one, which can ensure the bonding quality of the silicon steel sheet core and avoid excessive heating energy consumption, thereby improving energy utilization efficiency, so the purpose of the present invention can be achieved.

[0013] However, what has been described above is only to illustrate the preferred embodiment of the present invention, and should not be used to limit the scope of implementation of the present invention. That is, all simple equivalent changes and modifications made according to the scope of the patent application of the present invention and the content of the invention specification should still fall within the scope covered by the patent of the present invention.

[0014] [customary knowledge] 1: Manufacturing method of silicon steel sheet core 11: Preparation steps 12: Overlay Steps 13: Heating and bonding steps [The present invention] 3: Manufacturing method of silicon steel sheet bonding 31: Preparation steps 32: Heating step 33: Overlay bonding steps

Claims

1. A method for manufacturing a silicon steel sheet assembly, comprising, in sequence: a material preparation step, comprising a plurality of silicon steel sheets, each silicon steel sheet having a metal body and an adhesive film disposed on the metal body; a heating step, comprising a heater, wherein each silicon steel sheet is separately conveyed, wherein, The heater is a laser heater, which allows the heater to heat each silicon steel sheet by irradiation with light, so that the adhesive film on each silicon steel sheet becomes sticky due to heat; and a stacking and bonding step, in which one of the aforementioned heated silicon steel sheets, when its adhesive film becomes sticky due to heat, is stacked onto another heated silicon steel sheet whose adhesive film also becomes sticky due to heat, so that the heated parts of the adhesive films on the two silicon steel sheets are bonded together, so that the two silicon steel sheets are in a stacked and bonded state, so that after stacking multiple silicon steel sheets, the stacked silicon steel sheets are formed into a whole silicon steel core with the required thickness.

2. The manufacturing method of the silicon steel sheet bonding according to claim 1, wherein, The heater operates at temperatures between 145 and 155°C.

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