JPS61261405A - Method for refining metallic powder for producing germanium therapeutic die - Google Patents

Abstract

PURPOSE:To smooth the surface of a Ge therapeutic die which is cast by melting Ge metallic powder for casting the Ge therapeutic die by removing the Fe- component in said powder by magnetic sepn. CONSTITUTION:A Ge ingot is ground with a mill, etc. to produce Ge powder and said powder is used as the raw material for melting in the stage of melting the Ge powder and casting the Ge therapeutic die having about 3-5mm diameter and 1.5-2.5mm thickness. The iron powder generated by the wear of a grinding machine in the stage of grinding intrudes into the powder and the surface of the Ge therapeutic die melted and cast of such powder as the raw material is roughened by the Fe deposited on the surface. The surface of the Ge therapeutic die to be adhered to the human skin is required to have smoothness and therefore the iron powder contained therein is removed by the magnetic sepn. method for the Ge powder after grinding. The Ge powder without contg. the iron powder is melted and cast as the raw material by which the Ge therapeutic die having the smooth surface comfortable to the skin is produced.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for purifying germanium metal powder before casting in the process of forming germanium treatment pieces that are applied to the skin to treat stiffness and pain.

In the present invention, the book referred to as germanium treatment piece has a diameter of about 3 to 511111 mm and a thickness of about 1.5 to 2.511 mm.
A granular molded body of pure gel manicum metal of grade I,
One or several pieces are pasted in a row on meridian lines that connect to acupuncture points called acupuncture points on the body through an adhesive cloth like a bandage. , acupressure and acupuncture treatment for stiffness and pain.

Because the treatment pieces are small as mentioned above, many molds are carved on a molding jig, pure germanium metal particles or tablets are placed inside these molds, and then melted and cast at a high temperature of 1100 degrees Celsius. It is then molded.

Therefore, in order to obtain pure germanium metal powder or tablets, a pure germanium metal ingot must be crushed into soybean-sized pieces using a crusher, and then crushed into powder using a mill.

This powder or tablet is put into a mold and melted and cast, but the molded pieces come into direct contact with the skin during treatment, and are not adhesive. The surface of the piece must be smooth in order to be pressed with a cloth, and for this reason, the pieces were formed to have a smooth surface by polishing the surface to remove burrs and irregularities caused by the molding.

However, even with careful polishing, the rough surface cannot be removed, and products are usually sold with this rough surface remaining.

The applicant carefully observed the surface of this piece in order to determine the cause of the roughness remaining on the surface and discovered that this was a mixture of impurities, and further extracted and detected this impurity and found that it was iron powder. There was found. An enlarged photograph of this rough surface is attached for reference. This photo shows a portion of the surface of the treatment piece magnified 200 times; the top photo is taken diagonally above, and the bottom photo is taken from directly above. According to this, an object embedded like a magnet in the crater-shaped depression can be clearly observed, and this object is iron powder. This type of formation continued to appear from below even after the surface was polished, and after further investigation into the cause, it was discovered that this was due to iron powder being mixed in due to wear of the crusher. This appears on the surface due to the difference in melting temperature and specific gravity between iron and germanium.

The present invention is to remove iron powder from this germanium metal powder, and considering the fact that germanium metal fortunately does not adhere to a magnet, only the mixed iron powder is removed by using a magnet.

To explain this method, nine germanium metal powder formed into powder by a crusher or mill is spread uniformly on a non-magnetic plate, such as a smooth synthetic resin plate, and then a bar-shaped magnet is placed on top of it. It is used to magnetically attract iron powder by rolling it all over the place.

When a treatment piece is molded from pure germanium metal powder after iron powder has been removed in this way, some particles remain immediately after being removed from the deaf, but when the particles are removed by polishing, the piece is unique to germanium metal. It has a white silver shine, and is much more beautiful than the rough-surfaced pieces that have existed up until now, and its product value has also increased.
Furthermore, a germanium treatment piece that feels good when it comes in contact with the skin can be obtained.

[Brief explanation of the drawing]

The attached photographs are 200x magnified photographs of the surface for reference; (1) is a photograph taken from above, and (2) is a photograph taken from directly above.

Claims (1)

[Claims] In manufacturing germanium treatment pieces, an ingot is formed into powder using a crusher and a mill, and iron powder as impurities contained in the powder is removed using a magnet. Metal powder refining method.