Production method of full-conduction high-flexibility metal foil strip and a kind of high-flexibility metal foil strip
A technology of metal foil tape and production method, which is applied to metal layered products, chemical instruments and methods, layered products, etc., can solve the problems of irreversible metal ductility, leakage of electromagnetic waves from gaps, and easy penetration of electromagnetic waves, so as to achieve guarantee Data masking performance, reducing warping deformation and gaps, avoiding the effect of signal data attenuation loss
Active Publication Date: 2020-10-02
DONGGUAN LANMU MATERIAL TECH
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] At present, the common shielding materials are metal foil materials, such as copper foil, aluminum foil, silver foil, etc. Although they have good shielding effect, they have a certain hardness, and the metal ductility is irreversible and irreversible. Once the cable is bent, it will warp, When it becomes hard, the electromagnetic wave leaks from the gap; the metal foil has good ductility and deformation reversibility after it is attached to the film. Since the film is generally an insulating layer, whether it is longitudinally wrapped or wrapped, electromagnetic waves will leak from the insulating layer, resulting in energy loss and EMI. Not good, external electromagnetic waves can easily enter the transmission channel and cause interference
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0022] Attached below figure 1 , 2 The present invention is described further:
[0023] The production method of the full-conduction highly flexible metal foil strip includes the following production process steps:
[0024] a. Material selection: plastic film is selected as the base tape, and a composite metal foil material tape that is composited with metal foil with good ductility on both sides, the thickness of the base tape is: 2-25 μm; the thickness of the metal foil is: 5-50 μm; The above size selection is based on data analysis. For metal materials with good ductility, such as copper, aluminum, silver and other metals, two-way extrusion and shearing can be achieved within the above dimensions. Realize overall composite foil conduction;
[0025] b. Two-way extruding and shearing: pass the composite metal foil strip in step a through the extruding machine, and the extruding machine will use two or more sets of two-way extruding scissors in series to make the originally...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
| Property | Measurement | Unit |
|---|---|---|
| thickness | aaaaa | aaaaa |
| thickness | aaaaa | aaaaa |
Login to View More
Abstract
The invention relates to the technical field of electromagnetic shielding materials, in particular to a production method of a fully-conducting highly-flexible metal foil belt and a highly-flexible metal foil belt. The outer layer of the highly-flexible metal foil belt is covered by a metal foil material belt. The conduction of current is realized in the outer ring of the cross section of the fully-conducting highly-flexible metal foil belt. Two or more sets of two-way extrusion-shear tools are adopted to extrude and shear metal foil belts with good ductility on the two sides to an inner thinplastic base belt. During extrusion-shear, the metal foil belts extend and deform towards the base belt, the metal foil belts on the two sides are overlapped under the action of the extrusion-shear force, so that the integral metal layers on both sides of the highly-flexible metal foil belt are connected. By using the fully-conducting highly-flexible metal foil belt of the invention, the inductance caused by the annular path formed by plastic insulation partition during wrapping or longitudinal towing of cables can be reduced or eliminated, the attenuation loss of signal data can be avoided, the impedance on the circumference of the shielding layer can be kept consistent, the leakage of electromagnetic waves can be avoided, and the shielding efficiency can be improved.
Description
technical field [0001] The invention relates to the technical field of electromagnetic shielding materials, in particular to a production method of a full-conduction high-flexibility metal foil strip and a high-flexibility metal foil strip. The outer layer of the high-flexibility metal foil strip is covered by a metal foil strip, and the current The conduction is realized in the outer ring of the full-conduction high-flexibility metal foil cross-section, and the high-modulus film base tape is used for toughening inside. Background technique [0002] In the production of transmission cables, in order to improve the anti-interference performance, it is generally necessary to set up a shielding layer for the realization of circuit composition and electromagnetic shielding. [0003] The shielding layer is usually in the form of tape, braid, winding, corrugated tube or a combination of these forms, and the most common form of tape shielding layer is copper foil or aluminum foil o...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H05K9/00B32B15/20B32B15/08
CPCB32B15/08B32B15/20B32B2307/212H05K9/0084
Inventor 魏代利
Owner DONGGUAN LANMU MATERIAL TECH