CN-117962451-B - Amorphous adhesive tape and manufacturing method and application thereof

Abstract

The invention relates to an amorphous adhesive tape, a manufacturing method and application thereof, wherein the amorphous adhesive tape comprises at least two layers of amorphous alloy strips which are arranged in a layer-by-layer manner, an adhesive layer is arranged between every two adjacent layers of amorphous alloy strips, and the curvature radius of the amorphous adhesive tape is more than or equal to 95mm. The amorphous adhesive tape provided by the invention realizes the manufacture of the amorphous adhesive tape taking the interlayer as the interval through the arrangement of the interlayer in the manufacturing process, so that the amorphous adhesive tape has the characteristic of convenient preparation and is suitable for industrial production. In addition, the amorphous adhesive tape has a curvature radius of more than or equal to 95mm, can be sold in whole rolls under the condition of not affecting the performance of the amorphous adhesive tape, and is not easy to crack in the storage and transportation processes. The amorphous adhesive tape can be used for stamping or sheet stamping, and the problem that the sheet is too thin in the amorphous alloy stamping process is successfully solved.

Inventors

• WANG ZEFAN
• LI XIAOYU
• PANG JING
• YANG DONG

Assignees

• 青岛云路先进材料技术股份有限公司

Dates

Publication Date

20260505

Application Date

20240222

Priority Date

20230301

Claims (12)

1. 1. A method for manufacturing an amorphous adhesive tape, comprising the steps of: (1) The amorphous alloy strips are coiled, and an interlayer is arranged according to the number of layers of the amorphous alloy strips in the required amorphous adhesive tape in the coiling process, so as to obtain coiled materials; (2) Impregnating and solidifying the coiled material to obtain an adhesive tape roll with an interlayer; (3) Separating the adhesive tape roll with the interlayer to obtain a rolled amorphous adhesive tape; the amorphous adhesive tape comprises at least two layers of amorphous alloy tapes which are arranged in a layer-by-layer manner; an adhesive layer is arranged between two adjacent layers of amorphous alloy strips; the curvature radius of the amorphous adhesive tape is more than or equal to 95mm; the lamination coefficient of the amorphous adhesive tape is 80-95%.
2. 2. The method of claim 1, wherein the amorphous ribbon comprises 2-20 layers of amorphous alloy ribbon in a layer-by-layer arrangement.
3. 3. The method of claim 1, wherein each layer of amorphous alloy ribbon has a thickness of 10-50 μm; The width of each layer of amorphous alloy strip is 5-300mm.
4. 4. The method of claim 1, wherein the material of the barrier layer in step (1) includes, but is not limited to, a mold release agent, a polytetrafluoroethylene film, or a single-layer amorphous alloy strip coated with a mold release agent on both sides.
5. 5. The method according to claim 1, wherein when the material of the interlayer in the step (1) is a mold release agent, the thickness of the interlayer is less than or equal to 50 μm; When the interlayer is made of polytetrafluoroethylene film, the thickness of the interlayer is 0.05-0.2mm; When the material of the interlayer in the step (1) is a single-layer amorphous alloy strip with the release agent coated on both sides, the thickness of the interlayer is 10-100 mu m.
6. 6. The method according to claim 1, wherein the separator is made of polytetrafluoroethylene film and/or a single-layer amorphous alloy strip coated with a release agent on both sides, and the separator is recovered in the step (3) during the step of separating.
7. 7. The method according to claim 1, wherein the impregnating paste used in the impregnation in the step (2) includes, but is not limited to, epoxy resin, silicone or acrylic resin.
8. 8. The method of claim 7, wherein the amorphous adhesive tape has a impregnation residue ratio of 40 to 90%.
9. 9. Use of an amorphous adhesive tape produced by the production method according to any one of claims 1 to 8, characterized in that the amorphous adhesive tape is used for press working.
10. 10. An amorphous adhesive tape roll, characterized in that the amorphous adhesive tape roll is obtained by winding an amorphous adhesive tape produced by the production method according to any one of claims 1 to 8.
11. 11. The roll of amorphous adhesive tape of claim 10, wherein the inner radius of the roll of amorphous adhesive tape is greater than or equal to 150mm.
12. 12. The roll of amorphous adhesive tape of claim 10, wherein the thickness of the amorphous adhesive tape in the roll of amorphous adhesive tape is 0.02-1.6mm.

Description

Amorphous adhesive tape and manufacturing method and application thereof Technical Field The invention belongs to the technical field of amorphous alloy, relates to a manufacturing method of an adhesive tape, and particularly relates to an amorphous adhesive tape, and a manufacturing method and application thereof. Background The amorphous alloy material has excellent electromagnetic properties, has the characteristics of high magnetic permeability and low iron loss, and is widely applied to the fields of transformers, mutual inductors and the like. In these fields of application, when amorphous alloy materials are used for iron cores, they are usually ring-shaped or ring-like and are often shaped by winding. A core that cannot be formed by winding, such as a motor stator, a motor rotor, and a sensor, needs to be manufactured by a sheet-punching method. The difficulty in stamping amorphous alloy materials is mainly due to the thickness of the amorphous ribbon. The amorphous alloy material is formed by throwing high-temperature molten alloy through a single-roller cooling method, the thickness of the amorphous alloy is generally 10-50 mu m due to the characteristics of material characteristics and manufacturing process, and the thickness of a common silicon steel sheet is about 0.2-0.5mm, so that laminated iron cores with the same thickness are manufactured, the number of amorphous punching sheets is 4-20 times that of the silicon steel sheet, the production efficiency is greatly reduced, and the production cost is increased. In addition, the thinner thickness of the amorphous alloy also affects the stamping cost. For example, the clearance between the male film and the female film of the stamping die is generally about 10% of the thickness of the plate, and for amorphous materials with a thin thickness, the die clearance needs to be 1-5 μm, and a small clearance means that higher die machining precision and punching precision are required, which brings about an increase in punching cost, and on the other hand, the punch wear is increased, the service life of the punch is reduced, and the punching cost is increased. Moreover, the amorphous alloy has thinner thickness and lower rigidity, and cannot be fed in a silicon steel feeding mode, so that the stamping difficulty and cost are increased. Because the amorphous alloy strip is thin and low in rigidity, the strip is easy to be adsorbed on a die, and the feeding and blanking procedures are affected. Therefore, in order to reduce the cost of punching the amorphous alloy, it is necessary to increase the thickness of the amorphous alloy punched plate. The method for laminating the strips into the plate with larger overall thickness comprises riveting, welding and bonding, wherein the amorphous alloy is a brittle material with poor ductility, so that the riveting cannot be performed, the adjacent strips are connected through welding spots, the strip layers near the welding spots are firmly connected, interlayer connection cannot be realized in the area without the welding spots, and when the area without the welding spots is punched, the phenomena of dislocation and material jumping easily occur, so that the quality of a punched sheet is influenced. Bonding is one of the effective methods of laminating amorphous alloy strips into thick sheets. In general, the manufacturing process of the multi-layer adhesive tape is online linear adhesion, equipment required by the process occupies large area, production efficiency is low, and manufacturing cost of the multi-layer adhesive tape is high. Meanwhile, the online adhesive tape is straight and has no curvature, after the online adhesive tape is wound, the deformation of each layer is different due to the bending effect, interlayer adhesive is easily damaged due to the stress effect, and the coil is easily cracked in the storage and transportation processes. Therefore, the amorphous multi-layer adhesive tape based on adhesion and convenient for long-term storage and transportation, and the preparation method and application thereof are provided, and have important significance for reducing the cost of stamping amorphous alloy and improving the stamping precision and efficiency of amorphous alloy. Disclosure of Invention The invention aims to provide an amorphous adhesive tape and a manufacturing method and application thereof, in particular to an amorphous adhesive tape convenient for long-term storage and transportation and a manufacturing method and application thereof, and the manufacturing method has simple process and can reduce the manufacturing cost of the amorphous adhesive tape; the finally obtained amorphous adhesive tape has a certain curvature radius, can be sold in whole rolls under the condition of unaffected performance, is not easy to crack in the storage and transportation process, and can be used for stamping or sheet stamping. In order to achieve the aim of the invention, the invention adopts the foll