Device for preliminary flattening of magnetic metal powder
A magnetic metal powder, flattening technology, applied in stamping, can solve the problems of less impact points, lower proportion of flat powder, large impact force, etc., to achieve the effects of fast processing, stable powder quality, and high powder flattening rate
Active Publication Date: 2016-04-13
江苏宝纳电磁新材料有限公司
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Problems solved by technology
The disadvantage is: the impact between the ball and the ball is a point-to-point impact, and the impact points are few and the impact force is large.
With the increase of ball milling time, the thickness of the powder decreases, and the ability to withstand impact decreases, and the violent impact will cause the flake powder to become fragments, resulting in a decrease in the proportion of flat powder
Method used
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[0013] In order to make the object, technical solution and advantages of the present invention clearer, preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0014] Such as figure 1 As shown, a device for preliminary flattening of magnetic metal powder includes a drum 1, an inner drum 2, a roller 3 and a sealing assembly 4; the drum 1 is a cylindrical structure with a closed end and a circular cross section, and the sealing The component 4 seals the inner drum 2 and the roller 3 inside the drum 1; the cross section of the inner drum 2 is an elliptical structure, and the outer wall of the inner drum 2 in the longitudinal direction is tangent to the inner wall of the drum 1 and fixed together; The rollers 3 are located inside the inner drum 2 . The sealing assembly 4 includes a sealing end cover 41 , fastening bolts 42 and a fixing bracket 43 , and the fastening bolts 42 pass through threaded holes on t...
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Abstract
The invention discloses a device for preliminarily flattening magnetic metal powder. The device comprises a drum, an inner drum, a grinding roller and a sealing component, wherein the drum has a tubular structure with a round section, and one end of the drum is closed; the inner drum and the grinding roller are sealed in the drum through the sealing component; the section of the inner drum has an elliptical structure; the outer wall of the inner drum in a long axis direction is tangent to the inner wall of the drum, and is fixed together with the inner wall of the drum; the grinding roller is arranged in the inner drum. When the grinding roller elliptically moves along the inner wall of the inner drum, the magnetic metal powder is ground and pressed by means of gravity of the grinding roller, so that the aim of preliminary flattening is fulfilled. The device has the beneficial effects that the processed magnetic metal powder is high in flattening rate, the preliminarily flattened powder is stable in quality, and the device is higher in processing speed and efficiency.
Description
technical field [0001] The invention relates to a device for rolling and stamping spherical, ellipsoidal, massive and irregular magnetic metal powders to make them preliminarily flattened. The flaky magnetic metal micropowder through subsequent processing is mainly used to make magnetic materials for flexible electromagnetic interference wave absorbing magnetic sheets. The flexible magnetic sheets are preferably used in RFID (Radio Frequency Identification: Radio Frequency Identification) technology electronic tags and EMC (Electromagnetic Compatibility: Electromagnetic Compatibility or It is called EMI (anti-electromagnetic interference: Electromagnetic Interference) and so on. Background technique [0002] Radio frequency identification technology (RFID) is the core link to realize the identification of items in the Internet of Things, and the electronic tags of items must use flexible magnetic sheets. It is made of very thin (less than 1μm) scaly metal powder, which can ...
Claims
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IPC IPC(8): B22F9/04
Inventor 阳开新戴少银瞿卫俊
Owner 江苏宝纳电磁新材料有限公司