WO2010016744A2

WO2010016744A2 - Method for manufacturing a fragrance-emitting sintered sheet

Info

Publication number: WO2010016744A2
Application number: PCT/KR2009/004416
Authority: WO
Inventors: 주학식
Original assignee: Joo Hak Sik
Priority date: 2008-08-07
Filing date: 2009-08-07
Publication date: 2010-02-11
Also published as: WO2010016744A3; KR100918593B1

Abstract

Disclosed is a method for manufacturing a fragrance-emitting sintered sheet. A fragrance-emitting sintered sheet of the present invention is manufactured by a method comprising: a filling step for filling the inside of a mold with solid powder; a primary sintered body molding step for heating the solid powder at at least a melting temperature to mold a porous sintered body; a press molding step for repeatedly pressing the primary sintered body to a desired thickness, under a low temperature atmosphere that is 20-40% lower than the melting temperature; a fragrance-emitting sintered sheet molding step for secondarily sintering the primary press-molded sintered body under a low temperature atmosphere that is 20-80% lower than the melting temperature for 3-45 minutes; a polishing step for polishing the surface of the secondary sintered, fragrance-emitting sintered sheet; and an impregnating step for impregnating a fragrance into the surface-polished fragrance-emitting sintered sheet. As it can be manufactured in a slim sheet form, the thusly manufactured invention can substantially increase the degree of freedom for a target product as well as reduce breakage and damage on the sintered body through the improved durability and elasticity, and consequently industrially advantageous effects are expected to increase the degree of consumer satisfaction of the target product and the product value thereof.

Description

Manufacturing method of thin film sintered fragrance

The present invention relates to a method for producing a directional multi-porous sintered flavoring body using a sintered body made of metal powder. More particularly, the present invention is applied to various articles by molding a sintered body obtained by sintering metal powder to a slim thickness by a simple process. The present invention relates to a method for manufacturing a thin film sintered fragrance body to increase the product value of the product.

In general, the oriented metal is gradually scented by injecting a certain amount of fragrance into the porous metal sintered body to be impregnated therein, and is mainly used as a material for fancy products, accessories, stationery, etc. to give visual satisfaction to consumers. do.

The porous metal sintered body according to the prior art is a preliminary sintered body by pressing a metal powder having an average particle size of 100 ㎛ or more at room temperature under a pressure of 100 ~ 600Mpa, at this time 120 at a temperature in the range of 900 ℃ to 1400 ℃ to have a porosity of 10 to 20% The porous metal sintered body was formed by sintering for less than a minute.

The aromatic metal was manufactured through a process of forcibly penetrating the perfume in a vacuum state into the pores of the porous metal sintered body thus formed.

However, the porous metal sintered body according to the prior art is difficult to manufacture a product having a beautiful surface due to the metal powder having a large particle size by pressurizing and sintering the metal powder having an average particle size of 100㎛ or more as a raw material has a limit in improving the commerciality There was a downside.

In addition, the sintered compact formed by pressurizing and sintering the metal powder has a porosity of 20% or less, and the work for infiltrating the fragrance into the metallic sintered body having such a porosity must be performed in a vacuum state to enable efficient penetration of the fragrance. It is impossible to penetrate the fragrance within a short time and also due to the disadvantage that the fragrance refill (refell) during use is not easy, as a result there was a limit to meet the various needs of consumers.

In particular, the conventional sintered body not only has a disadvantage that it is easily broken even under a light impact, and due to the disadvantage that the current technology cannot produce the thickness of the sintered body less than 10mm, the application target is limited, such as accessories or relatively bulky products. There was a problem of low marketability.

In addition, in the case of the sintered body applied to the product has a problem that the surface is rough and poor durability due to the disadvantage that it is easily damaged even by the impact from a small impact or drop from the outside as a result of the consumer's dissatisfaction with the product.

The present invention was created to solve the problems of the prior art as described above, an object of the present invention is to pressurize the sintered body sintered metal powder to a predetermined pressure to adjust the density and thickness of the thin film sintered body having elasticity and durability It is to provide a method for producing a thin film sintered fragrance that can enable the production of furnaces.

Another object of the present invention is to enable the manufacture of a sintered body having a thickness of less than 0.5mm to be applied to products in the form of cards, stationery, accessories, electronics and sheet paper of a slim thickness product value for the applied product It is to provide a method for producing a thin film sintered fragrance.

According to an aspect of the present invention, there is provided a method of manufacturing a thin film sintered fragrance, including a filling step of filling a solid powder into a tray; Forming a porous sintered body by heating the solid powder above a melting temperature; Press molding step to pressurize the primary sintered body several times at low pressure until the desired thickness (must be compression molding several times at low pressure. In case of compression molding at high pressure, crack inside / outside of primary sintered body) crack) occurrence); Forming a thin film sintered fragrance by sintering the press-molded primary sintered body for 2 to 3 to 45 minutes at a temperature of 20 to 80% lower than a melting temperature; Polishing a surface of the second sintered thin film sintered fragrance; Characterized in that it comprises a penetration step of penetrating the fragrance to the surface polished thin film sintered fragrance.

As a preferred feature of the present invention, in the press molding step for the primary sintered body, it is characterized in that the pressure is repeatedly formed 3 to 18 times at a pressure of 30 ~ 300MPA.

According to another preferred feature of the present invention, the surface polishing step further includes the step of performing printing or stamping on the surface of the thin film sintered flavoring body.

Another desirable feature of the present invention, after the surface polishing step further comprises a plating step of performing a plating to prevent oxidation and discoloration on the surface of the thin film sintered flavoring body.

In another preferred embodiment of the present invention, in the filling step, the solid powder filled in the tray is any one of a metal material, a synthetic resin material, a mineral material, and a nonferrous metal material.

As another preferred feature of the invention, in the forming step, the solid powder is to be heated at a temperature 20 to 80% lower than the melting point.

The features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. Prior to this, the terms or words used in the present specification and claims should not be interpreted in the ordinary and dictionary sense, and the inventors may appropriately define the concept of terms in order to best explain the invention of their own. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that the present invention.

The method for manufacturing a thin film sintered fragrance body according to the present invention can increase the durability and elasticity of the sintered body by adjusting the density and thickness by pressing the sintered body sintered to a predetermined shape in a predetermined temperature atmosphere, so that not only conventional accessories However, it can be applied to various types of card and sheet paper products with slim thickness.

Therefore, the degree of freedom of the applied product can be greatly increased, and the breakage and damage of the sintered body can be reduced through increased durability and elasticity, and as a result, the satisfaction and product value of the applied product can be improved. Industrially useful effects are expected.

1 is a schematic diagram for explaining a method for manufacturing a thin film sintered fragrance body according to the present invention;

Figure 2 is a block diagram showing a method of manufacturing a thin film sintered fragrance body according to the present invention.

Figure 3 is a perspective view showing an application example of the thin film sintered body produced by the present invention.

10: Mold

20: primary sintering

20 ′: thin film sintered fragrance

25: Powder

40: perfume liquid

Hereinafter, a manufacturing method of the thin film sintered fragrance according to the present invention will be described with reference to the accompanying drawings.

First, it should be noted that like elements or parts in the drawings are denoted by the same reference numerals as much as possible. In the following description of the present invention, detailed descriptions of well-known functions or configurations will be omitted in order not to obscure the subject matter of the present invention.

1 is a flow chart illustrating a method of manufacturing a multi-porous flavoring body according to the present invention, Figure 2 is a perspective view showing a multi-porous flavoring body according to the present invention. 3 is an exploded perspective view of the porous porous body of FIG. 2.

As shown therein, the method for manufacturing a thin film sintered fragrance body according to the present invention includes a filling step (S10) of filling a solid powder 25 into a mold 10 and a solid filled in the mold 10. The first sintering step (S20) of forming the porous sintered body, that is, the primary sintered body 20 by heating the powder 25 to the melting temperature or more, and the primary sintered body 20 at a low pressure until the desired thickness is reached. Pressurizing step 3 to 18 times at 30 ~ 300MPA (S30) and the second sintering the press-formed primary sintered body (20) for 3 to 45 minutes at a temperature of 20 to 80% lower than the melting temperature The second sintering step (S40) to form a thin film sintered fragrance 20 ', the surface polishing step (S50) and the surface polished to polish the surface of the second sintered thin film sintered fragrance 20' Plating step (S60) and the plating step of performing a wet or dry plating on the surface of the thin film sintered fragrance 20 ', The surface forming step (S70) of recording the product information through the printing or stamping on the surface of the thin film sintered fragrance 20 ', and the penetration step (S80) to penetrate the fragrance into the thin film sintered fragrance 20'. .

In the filling step (S10), the mold 10 is a member having a container shape with at least one surface exposed to the outside, is formed of a material that does not undergo thermal deformation during melting of the solid powder 25. The mold 10 can be manufactured in various shapes and sizes. However, in the present invention, since the mold 10 is used to form a thin film sintered compact, that is, a thin film sintered flavoring body 20 ', the pressure of the press press p to be described later is uniform. The bottom surface of the accommodation space should be provided to be able to work.

In addition, the solid powder 25 may be various materials may be used as long as it has a feature capable of forming a shape such as a metal material, nonferrous metal material, mineral material, synthetic resin, and the like, and is widely used as a noble metal material in the present invention. This easy silver, gold, tin, sapphire, stainless powder can be used, and in addition to these metals and non-metal materials, synthetic resins may be used urethane, silicon, ABS, polycarbonate, plastic powder. Also glass powder or mineral powder and nonferrous metal powder can be used.

The solid powder 25 is heated by a predetermined time under conditions of high temperature, that is, the solid powder 25 is not completely melted in a state filled in an appropriate amount so as not to overflow in the cavity which is the molding space of the mold 10. The vehicle sintered body 20 is formed.

In the forming step (S20) of the primary sintered body 20, the molding conditions are characterized in that the heating for a predetermined time at a temperature 20 to 80% lower than the melting point for each characteristic of the material of the solid powder 25.

When the solid powder 25 is heated under these conditions, the solid powders 25 form pores s by being bonded while forming pores with each other.

On the other hand, the molding conditions preferably satisfy the following conditions.

First, the mold 10 should not be deformed when the solid powder 25 is heated.

Second, the solid powder and the solid powder should be fused enough to form pores.

Third, the primary sintered body 20 made of the fused solid powder 25 should be maintained in a single molded body.

Fourth, the porosity of the primary sintered body 20 is determined through the heating temperature and the heating time for the solid powder 25.

The molding conditions of synthetic resins (polycarbonate, urethane), which are widely used as accessories and fancy goods, are widely used as a representative precious metal material and have good moldability.

In the case of sintering by putting silver (Ag) powder in the silver (Ag) or silver alloy product frame 10, the primary sintered body (by sintering at a low temperature of 25-30% based on the melting point for 5 minutes) 20) can be obtained. In this case, when extending the time for sintering, it can be confirmed through experiments that the porosity is lowered.

It was confirmed that the primary sintered body 20 could be obtained by sintering at least 5 minutes at a low temperature of 10 to 20% based on the melting point in the case of a powder made of polycarbonate or a synthetic resin made of urethane. Like the silver powder, the synthetic resin material also confirmed through experiments that the porosity is lowered when the sintering time is extended.

In the press-molding step (S30) for the primary sintered primary sintered body 20, the primary sintered body 20 is formed by repeatedly pressing at a low pressure several times until a desired thickness is achieved. The size of the pressure for the primary sintered body is preferably 30 ~ 300MPA, the number of times is preferably 3 to 18 times.

That is, the pressure on the primary sintered body 20 must be low pressure (30 ~ 300MPA), and must be repeatedly compressed several times (3 to 18 times). This is because cracks occur inside and outside the primary sintered body 20 when a pressure is applied to the primary sintered body at high pressure (300 MPA or more).

Here, the press press (p) is a known equipment capable of press molding the object, such as a rolling machine, rolling mill, etc. is used, the present invention proposes that the press is used.

That is, in the present invention, it is preferable that the pressing press p has a flat contact surface in contact with the upper surface of the primary sintered body 20 so as to pressurize at a uniform pressure on the primary sintered body 20. On the other hand, the pressure press (p) may be used a well-known pressure press using a hydraulic pressure, so detailed description thereof will be omitted.

On the other hand, the primary sintered body 20 pressurized by a predetermined pressure by the pressing press p is compressed to a predetermined thickness, the pore density is increased. When the primary sintered primary sintered body 20 is pressed, the space between the solid powders, i.e., the pores (s) are narrowed, and as the bonding force between the solid powders increases, durability and elasticity are increased.

In the second sintering step (S40) for the primary sintered body 20 compressed by the pressure press p, the primary sintered body 20 compressed to a predetermined thickness by the pressure press p has a melting temperature. By sintering for 3 to 45 minutes at a temperature lower than 20 to 80%, the thin film sintered flavoring body 20 'is formed.

That is, the primary sintered body 20 compressed by the pressing press p has a high density due to a decrease in thickness, resulting in high elasticity and durability, and a relatively small pore size. As such, the primary sintered body 20 compressed by the press press (p) may stabilize its shape through a second sintering process since shape restoration may be performed after time passes.

At this time, in the secondary sintering process, the temperature quantum condition should satisfy that the solid powder 25 is heated to a temperature below the melting point. That is, the secondary sintering process is to perform the re-sintering of the primary sintered body 20 which has already undergone the first sintering process and the pressurizing process. In this case, since the solid powders form pores and are bonded to each other, they are heated to a melting temperature. If the pores become very difficult to maintain. Therefore, it is preferable to sinter in the atmosphere before a melting temperature according to the kind of solid powder 25. FIG.

In the surface polishing step S50 of the thin film sintered flavoring body 20 'which has undergone the second sintering process, the secondary sintered thin film sintering flavoring body 20' is processed by a grinding tool such as a grinder. It is preferable. This is not a necessary process, but when the thin film sintered flavoring body 20 'manufactured by the above process is provided to be exposed on the surface, it may be performed to enhance the beauty of the appearance and the contact feeling upon contacting the user's body.

In the plating step (S60) in which the surface of the surface-polished thin film sintered flavoring body 20 'is plated, the plating method is roughly classified into dry, wet, and wet and dry methods.

That is, the present invention makes the appearance of the thin film sintered flavoring body 20 'obtained by heating the solid powder 25 at a predetermined temperature first and second at a predetermined temperature to prevent oxidation and discoloration, thereby making it commercially available as an accessory or fancy goods. In order to maintain the plating, a plating film is formed on the outer surface of the thin film sintered flavoring body 20 ', and the plating conditions are briefly described as follows.

First, the plating should be made so as not to block or close the pores of the porous fragrance 20.

Second, depending on the type of material of the solid powder 25, the plating is performed in three ways: wet or dry or wet and dry.

In this case, it is most important that the wet plating prevents the plating solution from penetrating into the pores.

To this end, the present invention preferably applies a material (typically, paraffin series, etc.) that melts at a temperature of 80 ° C. or lower in advance, impregnates the pores of the thin film sintered flavoring body 20 ′, and then washes and dries. The method of wet plating, followed by increasing the strength of the plating through a low temperature heat treatment of 80 ° C. or lower, and simultaneously maintaining the fine pores by removing the material (paraffin-based) impregnated into the pores of the porous fragrance 20. Suggest.

Dry plating also needs to be considered as a top priority to keep the plating film from blocking the pores of the thin film sintered fragrance 20 '.

To this end, the present invention proposes a method of spraying the plated particles forming the plated film at high temperature and high pressure on the outer surface of the thin film sintered flavoring body 20 '. In this case, when the thickness of the plating film is 2 μm or more, it is difficult to smoothly penetrate the fragrance liquid due to the phenomenon that pores are blocked or narrowed as compared with before plating, so that the plating is preferably performed at 1 μm or less.

Such a plating process may be carried out by various known plating methods according to the type of the solid powder 25.

In the surface forming step (S70) of printing or stamping product information on the surface of the thin film sintered flavoring body 20 ′ that has undergone the plating step, the printing and marking marks pores of the thin film sintering flavoring body 20 ′. It may be formed of letters or images containing patterns or product information so as not to be shielded.

In the penetrating step (S80), when the fragrance 40 or perfume is sprinkled or dropped on the outer surface of the thin film sintered fragrance 20 ', that is, the fragrance liquid flows into the pores of the thin film sintered fragrance 20'. It penetrates into the pores by capillary action, and the fragrance is penetrated naturally.

Here, if you want to use a different fragrance, when the heat is applied to the thin film sintered fragrance 20 'by using a hair dryer, the existing fragrance is lost in fragrance, the desired fragrance 40 or perfume is thin film sintered fragrance You can spray or drop it at (20 ').

On the other hand, the present invention is not limited to the described embodiments, it is obvious to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such modifications or variations will have to belong to the claims of the present invention.

Claims

A filling step of filling the inside of the mold with the solid powder;

Forming a porous sintered body by heating the solid powder above a melting temperature;

A press molding step of repeatedly pressurizing the primary sintered body under conditions of a temperature atmosphere of 20 to 40% lower than a melting temperature;

Forming a thin film sintered fragrance by sintering the pressure-molded primary sintered body for 2 to 3 minutes at a temperature of 20 to 80% lower than a melting temperature;

Polishing a surface of the second sintered thin film sintered fragrance;

A penetration step of penetrating the fragrance into the surface polished thin film sintered fragrance;

Method for producing a thin film sintered flavoring body, characterized in that consisting of.
The method of manufacturing a thin film sintered fragrance body according to claim 1, further comprising performing repeated press molding for 3 to 18 times at a pressure of 30 to 300 MPA in the press molding step for the primary sintered compact.
The method of claim 1, further comprising printing or stamping the surface of the thin film sintered flavoring body after the surface polishing step.
The method of claim 1, further comprising a plating step of plating the surface of the thin film sintered perfume body to prevent oxidation and discoloration after the surface polishing step.
The method of claim 1, wherein in the filling step,

The solid powder filled in the product frame is any one of a metal material, synthetic resin material, mineral material, non-ferrous metal material.