KR20160023365A - Method for Producing Articles Using Injection Molding of Alloy - Google Patents

Method for Producing Articles Using Injection Molding of Alloy Download PDF

Info

Publication number
KR20160023365A
KR20160023365A KR1020140109669A KR20140109669A KR20160023365A KR 20160023365 A KR20160023365 A KR 20160023365A KR 1020140109669 A KR1020140109669 A KR 1020140109669A KR 20140109669 A KR20140109669 A KR 20140109669A KR 20160023365 A KR20160023365 A KR 20160023365A
Authority
KR
South Korea
Prior art keywords
alloy
mold
injection
injection molding
molding method
Prior art date
Application number
KR1020140109669A
Other languages
Korean (ko)
Inventor
박상준
Original Assignee
박상준
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 박상준 filed Critical 박상준
Priority to KR1020140109669A priority Critical patent/KR20160023365A/en
Publication of KR20160023365A publication Critical patent/KR20160023365A/en

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D17/00—Pressure die casting or injection die casting, i.e. casting in which the metal is forced into a mould under high pressure
    • B22D17/20—Accessories: Details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
    • B22D21/00—Casting non-ferrous metals or metallic compounds so far as their metallurgical properties are of importance for the casting procedure; Selection of compositions therefor
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C1/00—Making non-ferrous alloys
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/12—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials
    • H01F1/14—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of soft-magnetic materials metals or alloys
    • H01F1/147—Alloys characterised by their composition
    • H01F1/153—Amorphous metallic alloys, e.g. glassy metals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Dispersion Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The present invention relates to an injection molding method of an alloy and, more specifically, relates to an injection molding method of an amorphous material, metal, or alloy including an amorphous component. The injection molding method of an alloy comprises: a step of producing an alloy including amorphous alloy or alloy including an amorphous component by melting metal or a nonmetal at a temperature of 600-1200 degrees Celsius; a step of preparing a mold into which the molten alloy is injected; a step of making the alloy into a spherical shape or a similar spherical shape with an average diameter of 1-15 cm, and melting them in a high-frequency application coil at a temperature of 600-1200 degrees Celsius; a step of injecting the molten alloy into the mold; and a step of performing injection-molding in a predetermined shape in the mold, wherein the mold includes a pair of sub-molds having contact faces facing each other and forming an airtight space by contact.

Description

METHOD FOR PRODUCING INJECTION MOLDING OF ALLOY

TECHNICAL FIELD The present invention relates to an injection molding method of an alloy, and more particularly, to a method of injection molding a metal or an alloy containing an amorphous or amorphous component.

Injecting molding refers to the molding method of plastic or metal powder. In the plastic injection, the molding material supplied from the hopper is mixed in a heating cylinder, injected into a closed mold, melted, and injected at a high pressure by an injection cylinder. In addition, the injection of the metal powder can be accomplished by heating the mixture of the powder of the metal and the resin binder and injecting the mixture into the mold to form a certain shape, and then cooling the mixture to remove the binder. The plastic injection has the advantage that it can be mass-produced and the metal powder injection has the advantage that a product having a complicated shape can be produced. However, in the case of metal powder injection, the metal powder and the resin binder must be used together during the injection process. Therefore, the resin binder must be removed separately after molding, and large shrinkage occurs during the cooling process.

Patent Registration No. 10-0768700 discloses that the sum of at least one component selected from the group consisting of Fe, Fe and Co is 40 to 75 wt% and at least one component selected from the group of W, Mo, Cr, Nb, Is 20 wt% or more, and the sum of at least one component selected from the group consisting of B, C, Cu, and Si is 2 to 15 wt%, and other unavoidable impurities; ; Molding the mixture into a shape of a part by injection molding; Removing the binder from the extrudate; Wherein the alloy powder comprises 20 to 35 wt% of Cr, 1 to 2.5 wt% of Si, 0.5 wt% or less of C, Wherein the alloy is 0.1 to 3% by weight of Cu, 2 to 5% by weight of B, 0.1 to 8% by weight of Mo, 14 to 22% by weight of Ni and 4 to 15% by weight of Co.

Japanese Patent Application Laid-Open No. 10-2014-0003069 discloses a honeycomb structure comprising a plurality of shape portions formed in a predetermined shape in a state of being spaced apart from each other by a predetermined distance and a connecting portion connecting adjacent ones of the plurality of shape portions, Internal structure forming mold; A top plate core having an upper plate forming portion corresponding to an upper plate shape of a metal member to be formed; And a lower core corresponding to the upper core and having a lower plate forming portion corresponding to a lower plate shape of a metal member to be formed, and wherein at least one of the upper core and the lower core includes a lower plate formed between the upper plate forming portion and the lower plate forming portion And an auxiliary forming die formed to correspond to the lower plate shape of the metal member to be formed and inserted into the lower plate forming portion.

Patent Publication No. 10-2014-0068246 relates to an injection molding system comprising: a melting zone configured to melt a molten material contained therein; And a plunger rod configured to discharge molten material from the melting zone into the mold, wherein the plunger rod and the molten zone are provided on a horizontal axis in a row, the plunger rod extending horizontally through the molten zone And moving the molten material into the mold in the horizontal direction to form a molded article comprising the bulk amorphous alloy.

For injection molding of a metal or alloy that is not in powder form, the metal or alloy must be melted at a temperature of, for example, 500 to 1200, and the shrinkage level should be low during the cooling process after molding in the mold. A suitable mold should be prepared. The prior art does not disclose such a series of techniques.

The present invention has been made to solve the problems of the prior art and has the following purpose.

Prior Art 1: Patent Registration No. 10-0768700 (published by Pohang University of Science and Technology, October 19, 2007) Method of manufacturing alloy parts using metal injection molding method and alloy parts Prior Art 2: Patent Publication No. 10-2014-0003069 (published by Korea Institute of Industrial Technology, Jan. 09, 2014) Injection molding apparatus for metal member having an internal structure and internal structure forming mold used therefor, and metal member injection using the same Molding method and metal member produced thereby Prior Art 3: Patent Publication No. 10-2014-0068246 (published by CLEVABLE INTELECTRAL PROPERTIES, EL, May 05, 2015) Injection of amorphous alloy using injection molding system

An object of the present invention is to provide an injection molding method of an alloy capable of forming an arbitrary shape of an amorphous metal or a metal or alloy containing an amorphous component made to be capable of low-temperature melting.

According to a preferred embodiment of the present invention, an injection method of an alloy includes melting an alloy of a metal or a non-metal at a temperature of 600 to 1200 to produce an alloy containing an amorphous alloy or an amorphous component; Preparing a mold in which the alloy is melted and injected; Making the alloy into a spherical or pseudo spherical shape having an average diameter of 1 to 15 and melting it at a high frequency applying coil at a temperature of 600 to 1200; Injecting the molten alloy into the mold; And a step of performing injection molding in a predetermined shape in the mold, wherein the mold has a pair of sub-molds having opposing contact surfaces and forming a closed space by the contact of the contact surfaces.

According to another preferred embodiment of the present invention, the molten alloy is injected at the side of the pair of sub-molds, and the pair of sub-molds are relatively moved in the horizontal direction.

According to another preferred embodiment of the present invention, the alloy is made of zirconium, titanium, beryllium, copper, nickel, aluminum and silicon or consists of aluminum, titanium, copper, nickel and beryllium.

According to another preferred embodiment of the present invention, the alloy has a shrinkage ratio of 0.002 to 0.8% during cooling from a temperature of 600 to 1200 to room temperature.

According to another preferred embodiment of the present invention, the pair of molds is made of stainless steel to which carbon, silicon, manganese, chromium, molybdenum and vanadium are added.

The injection molding method according to the present invention can be applied to the manufacture of various industrial parts having complex shapes and strength and elasticity, including automobile parts, computer parts, frames of mobile devices, sporting goods and aircraft parts. Further, the method according to the present invention is not limited to the shape of the parts, but allows mass production of precision parts such as plastic injection molded parts.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1A shows an embodiment of an injection molding method of an alloy according to the present invention.
Figure 1B shows an embodiment of an x-ray diffraction analysis test for an alloy applied to the method according to the present invention.
FIGS. 2A and 2B show an embodiment of a mold that can be applied to the injection molding method according to the present invention.
3A and 3B illustrate an embodiment of an injection apparatus applicable to the injection molding method according to the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the accompanying drawings, but the present invention is not limited thereto. In the following description, components having the same reference numerals in different drawings have similar functions, so that they will not be described repeatedly unless necessary for an understanding of the invention, and the known components will be briefly described or omitted. However, It should not be understood as being excluded from the embodiment of Fig.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1A shows an embodiment of an injection molding method of an alloy according to the present invention.

Referring to FIG. 1A, an injection molding method of an alloy according to the present invention comprises the steps of: (P11) preparing an alloy containing an amorphous alloy or an amorphous component by melting a metal or a non-metallic material at a temperature of 600 to 1200; A step (P12) of preparing a mold to be injected by melting the alloy; (P13) of making the alloy into a spherical or pseudo spherical shape having an average diameter of 1 to 15 and melting at a high frequency applying coil at a temperature of 600 to 1200; Injecting the molten alloy into the mold (P14); And a step (P15) of injection-molding the mold in a predetermined shape, wherein the mold has a pair of sub-molds having opposing contact surfaces and a sealed space formed by the contact of the contact surfaces.

The injection molding method according to the present invention can be applied to an injection molding method of an amorphous alloy containing an amorphous metal or a metal in a crystalline form. In addition, the injection molding method according to the present invention melts an alloy made into a lump shape rather than a powder, and injects the alloy into a mold, thereby molding the product by a process similar to plastic injection. Therefore, no resin binder is used separately. The amorphous metal may include amorphous alloys such as Fe-Based, Fe-Ni-Based, Ni-Based or Co-based. But is not limited thereto. And amorphous metal containing crystalline metal means an amorphous alloy containing amorphous metal as a whole but containing a metal in a partially crystalline state. Crystalline metal-containing amorphous metals have similar properties to amorphous alloys when they are melted.

An alloy serving as a material for injection molding according to the present invention may be prepared (P11). The alloy may be, for example, zirconium (Zr), titanium (Ti), copper (Cu), nickel (Ni), beryllium (Be), aluminum (Al), tin (Sn), silicon (Si), niobium Can be made from a metal selected from the group consisting of gold (Au), silver (Ag), lead (Pb), platinum (Pt) and cobalt (Co). For example, the alloy may include 40 to 50 wt% zirconium; 12 to 16 wt% titanium; 2 to 4 wt% beryllium; 20 to 30 wt% copper; 13 to 18 wt% of nickel; 0.5 to 2 wt% aluminum; And from 0.1 to 1.0 wt% silicon. Or the alloy comprises 34 to 43 wt% zirconium; 32 to 45 wt% titanium; 2 to 4 wt% beryllium; 5-12 wt% copper; 6-12 wt% nickel; 1.0 to 4 wt% aluminum; And 0.2 to 1.0 wt% silicon. The alloy further comprises 3 to 65 wt% aluminum; 10 to 15 wt% titanium; 12 to 18 wt% copper; 10 to 15 wt% of nickel; And 2.0 to 3.0 wt% beryllium. Alternatively, the alloy may include 42 to 55 wt% aluminum; 5 to 12 wt% titanium; 15-25 wt% copper; 15 to 25 wt% of nickel; And 1 to 5 wt% beryllium. Such an alloy may include, for example, dissolving copper, nickel, some zirconium and beryllium at a temperature of 800-1000 to form a melt; Charging a remaining amount of zirconium into the melt to melt the molten zirconium; And charging titanium and aluminum after the remaining zirconium is completely melted. The alloy thus formed may be an amorphous alloy or an amorphous alloy containing a crystal metal. In the case of the alloy made according to the present embodiment, XRD analysis results of the type shown in FIG. 1B can be shown. In Fig. 1 (b), the peak appears as a crystal component.

The alloy made by the method described above can be made, for example, in the form of a spherical or pseudo spherical mass having a diameter of from 1 to 15, and can then be a material for injection molding. However, the alloy can be made in various shapes or sizes and can be made into a suitable shape or size that can be melted, for example, in the high frequency application coil described below.

When the alloy is made (P11), a mold for injection molding can be prepared (P12). The mold may have a structure suitable for the shape of the product to be manufactured. For example, the mold can be made of a pair of mold blocks or sub-molds, and each mold block or sub-mold can have a surface to be in contact with each other, and the contact surfaces are in contact with each other, Can be formed. A molding space can be formed in the closed space and a mold in which the molding space corresponds to the shape of the product can be fixed. The molten metal injected into the closed space can be injected into the mold and molded.

When the mold is ready (P12), the prepared alloy must be melted and injected into the mold. Melting, injection, injection, molding, cooling and discharge of the product of the alloy can be done in the injection apparatus.

The alloy according to the present invention can be, for example, high frequency melting. High-frequency melting refers to, for example, melting an alloy made in the form of a lump by applying high frequency while passing through an induction coil. The frequency to be applied to the induction coil may be, for example, 100 Hz to 500 kHz, the temperature may be 600 to 1200 depending on the type of alloy, and the frequency may be appropriately selected in consideration of the skin effect. The induction coil may be, but is not limited to, a circular coil shape, a square coil shape, an elliptical coil shape, a pancake coil shape, or a helical coil shape.

When the alloy becomes high-frequency melting (P14), it can be injected into the mold (P14). A method of applying pressure to the hydraulic cylinder to inject the molten alloy into the mold may be applied. Specifically, the pair of mold blocks or sub-molds may be composed of a movable mold block and a stationary mold block, and the movable mold block and the stationary mold block may be arranged to face each other in a horizontal direction. An injection hole may be formed on one side of the stationary mold block and a nozzle of the cylinder may be connected to the injection hole. Then, the molten alloy can be injected through the injection hole into the closed space of the mold block described above.

When the molten metal is injected into the mold block and pressure is applied by the moving mold block, the product can be molded inside the closed space (P15). Then, the mold may be cooled to cool the molded product, and then the movable mold block may be moved to discharge the molded product (P16). Thereafter, the product can be completed through a surface finishing process.

The degree of shrinkage during the cooling process is a major factor affecting product performance. Therefore, the level of contraction needs to be adjusted appropriately. On the other hand, the shrinkage level is based on the inherent properties of the alloy itself.

The shrinkage level of the alloy applied to the process according to the present invention can be from 0.002 to 0.8% from the temperature of 600 to 1200 at 10 -4 Torr to 2 atm until cooled to room temperature. Viscosity, flowability, shrinkage and flow rate were measured for alloys to which the method according to the invention was applied.

For the test, the change in fluidity with pressure was measured for tubes of different diameters. The change in viscosity was measured based on the change in shear force and the change in flow rate was measured while varying the diameter of the tube from 10 cm to 10 cm in length. The viscosity was measured while changing the temperature from 600 to 1200, and the shrinkage was measured as the volume change. The measurement temperature range was from 25 to 1200 and the pressure change was measured while varying the pressure applied to the 10 cm diameter tube from 10 -4 Torr to 1620 Torr.

The results of each measurement are shown in the table below.

Viscosity liquidity Shrinkage rate Flow velocity Temperature 5-20 6 ~ 21 0.002-0.8 5 to 15 pressure 5 to 10 5 to 15 0.001 to 0.3 4 to 20

* The temperature was measured in 10 units and the pressure in 10 Torr increments.

* Each value represents the relative deviation in%. For example, viscosity 5 ~ 10 is the lowest temperature change from 600, which corresponds to the lowest temperature, 1200 is the maximum temperature change, and maximum viscosity change is 10% .

The product manufactured by the alloy according to the present invention has a hardness of 280 to 1200 HV, an elastic modulus of 150 to 400 Gpa, a tensile strength of 600 to 3000 MPa and a specific gravity of 3.2 to 5.2. (Thermal Capacity: J / mk) of 2.40 to 3.5 and a thermal capacity (J / cm) of 150 to 200, and a thermal capacity / mol-K) is in the range of 10 to 50.

As you can see from the above results. It can be seen that the injection molding method according to the present invention can be made to have various physical properties depending on the field of application of the product, and precision injection like plastic can be performed regardless of the shape of the product.

Hereinafter, an embodiment of a mold that can be applied to the injection method according to the present invention will be described.

FIGS. 2A and 2B show an embodiment of a mold that can be applied to the injection molding method according to the present invention.

2A and 2B, a mold 100 applied to a method according to the present invention includes a first sub mold 10 having a first contact surface 11 and a second sub mold 10 having a first contact surface 11, The first contact surface 11 and the second contact surface 21 are brought into contact with each other to form a closing space which is sealed by the peripheral portion and a molding which is connected to the closing space. Space can be formed.

The first contact surface 11 and the second contact surface 21 which are in contact with the first sub-mold 10 and the second sub-mold 20, respectively, may be formed. The first contact surface 11 and the second contact surface 21 can be made to have the same or similar size and can be formed to be in close contact with each other on the circumferential surface.

An injection groove 12 having an injection hole 14 is formed in the first contact surface 11 and an engagement groove 22 is formed in the second contact surface 21 to be coupled with the injection groove 12 to form an insertion space . When the first contact surface 11 and the second contact surface 21 are in contact with each other, a filling space having a hexahedron shape can be formed with the injection groove 12 and the coupling groove 22 being in contact with each other. The molten alloy can be injected into the injection space through the injection hole 14, so that the molding shape can be fixed to the injection space. The pressing grooves 13 and the pressing grooves 23 having the same or similar size and depth as those of the forming grooves 13 having a relatively larger depth than the grooves 12 are connected to the injection grooves 12 . When the first contact surface 11 and the second contact surface 21 come into contact with each other, the molding space 13 and the pressure space 23 meet to form a molding space. And the mold of the product to be molded in the molding space can be fixed.

The product can be molded in a mold fixed inside the molding space. When the first contact surface 11 and the second contact surface 21 meet each other, the injection space and the molding space are sealed by the peripheral portion, and the molten alloy can be injected into the mold fixed to the molding space through the injection hole 14 .

The first sub-mold 10 and the second sub-mold 20 are guided in a predetermined direction in the process of contacting the first sub-mold 10 and the second sub-mold 20, And a guide hole 15 and a guide member 25 may be formed in the second sub-mold 20, respectively. A plurality of guide holes 15 may be formed in the direction perpendicular to the first contact surface 11 at the corners of the first sub-mold 10. The guide member 25 may be formed at a position corresponding to the guide hole 15. When the first contact surface 11 and the second contact surface 21 are in contact with each other while the guide member 25 is inserted into the guide hole 15, a closing space and a molding space can be formed. And the formed molding space needs to be fixed at a predetermined position.

At least one position fixing unit 16 can be disposed in the forming groove 13 for fixing the position of the molding space and the fastening and fixing unit 26 fastened to the position fixing unit 16 in the coupling groove 23 . The position fixing unit 16 and the fastening and fixing unit 26 are engaged with each other while the first contact surface 11 and the second contact surface 21 are in contact with each other so that the shape of the molding space can be fixed in the mold 100. And the molding of the product is performed stably. Guide pins and pin holes may be formed in the position fixing unit 16 and the fastening and fixing unit 26, respectively. And the mold can be stably fixed to the inside of the molding space by the combination of the guide pin and the pin hole.

It is necessary to prevent relative movement in a state where the first mold 10 and the second mold 20 are coupled. To this end, a limiting extension groove 17 may be formed in the first contact surface 11 and a sealing extension projection 27 may be formed in the second contact surface 21 to be coupled to the restriction extension groove 17. The limiting extension groove 17 may be formed on the opposite surface of the molding space, for example, and the sealing extension projection 27 may be formed in the corresponding position. Specifically, the restriction extending groove 17 may be formed along one side of the insertion space, and one side may be the opposite side of the position where the position fixing unit 16 is formed. The position fixing unit 16 may have a constant width and at the same time a length corresponding to the length of one side of the insertion space. Also, the restriction extension groove 17 can be formed in a stepped structure. Such a structure can firmly fix the first contact surface 11 and the second contact surface 21 and at the same time improve the sealing performance. Also, the sealing extension protrusion 27 may be made to have a structure in which it is inserted and joined to the restriction extension groove 17. The limiting extension groove 17 and the sealing extension projection 27 may be formed in various numbers in various positions.

A mold 100 having various structures can be applied to the method according to the present invention.

The mold can be placed in the injection apparatus.

3A and 3B illustrate an embodiment of an injection apparatus applicable to the injection molding method according to the present invention.

Referring to FIGS. 3A and 3B, an injection apparatus 30 for an alloy according to the present invention includes a mold module 31 having a pair of molds 312a and 312b arranged such that at least one of the molds is movable left and right; An injection module 34 for injecting material into the upper portion of the mold module 31; A chamber module 33 connected to one side of the mold module 31 and having a high frequency unit 332 and a cooling unit 333 connected to the input module 34 to make the material molten; And a fixing module 32 disposed on the other surface of the mold module 31 so as to face the chamber module 13. [

The mold module 31 may include a cylindrical injection chamber 311 and a pair of molds 312a and 312b disposed in positions symmetrical to each other inside the injection chamber 311. The pair of dies 312a and 312b may have the same or similar structure as the dies described in Figs. 2A and 2B. The injection chamber 311 may be arranged to be horizontal with respect to the paper and at least one of the pair of molds 312a and 312b may be pressed along a direction which is horizontal with respect to the paper and may be moved after molding. Moving left or right or receiving pressure means moving in the horizontal or horizontal approximate direction with respect to the ground and receiving pressure. The structure in which injection molding is performed while the molds 312a and 312b are pressed in a horizontal or horizontal approximate direction is referred to as a horizontal injection casting structure. Horizontal approximation refers to the horizontal direction horizontal level, except for errors caused by installation errors, design errors, or ground errors. The pair of dies 312a and 312b includes a fixed die plate, a moving die plate, and a tie bar. For example, a mold 312a located on the left side is movably installed and a mold 312b located on the right side. A fixed die plate may be provided. And the mold unit 312a located on the left side can be moved to discharge the molded product through the moving conveyor 342. [ The mold units 312a and 312b may include various devices related to injection molding known in the art.

A chamber module 33 for melting the material and injecting the material into the mold module 31 may be disposed on one side of the mold module 31. And the material may be injected from the input module 34 connected to the chamber module 33.

The chamber module 33 includes a vacuum chamber 331 capable of adjusting an internal pressure, a high frequency unit 332 provided inside the vacuum chamber 331 for melting the material to be introduced from the charging module 34, And a cooling unit 333 for controlling. The high frequency unit 332 can generate heat in the vacuum chamber 331 by an induction heating method and melts the material to be injected into the injection cylinder 334. The high frequency unit 332 can be made to be able to heat the interior, for example, from 400 to 1600, and any method known in the art can be employed for induction heating. The cooling unit 333 installed inside the high frequency unit 332 can be made into a jacket structure and can be, for example, air cooling or water cooling, but is not limited thereto. The cooling unit 333 can be made in a manner that surrounds the injection cylinder 334 and can have the function of making the temperature inside the injection cylinder 334 uniform over a given temperature range.

The injection module 34 for injecting the material into the injection cylinder 334 includes a charging tube 341, a transfer unit 343 for transferring the material to the upper side of the charging tube 341, And an opening / closing device 342 for blocking the inflow of air while connecting the chamber 331 so that the inside of the vacuum chamber 341 can be maintained in a vacuum state or a constant pressure.

When the material is injected into the injection cylinder 334, the high-frequency unit 332 can be operated to melt the material. And the cooling unit 33 is operated in the process of melting the material so that the melting temperature can be controlled. When the material is completely melted in the injection cylinder 334, the melt can be injected into the mold by the injection module 35. The injection module 35 may consist of a plunger unit 351 and a pressure tube 352 and the plunger unit 351 may be actuated by a device such as a hydraulic pump and may be actuated by a plunger unit 351 The pressure can be injected into the mold module 31 through the pressurizing tube 352. Movement of the pair of dies 312a and 312b due to the pressure applied during the operation of the injection module 35 can be prevented by the fixing module 32. [

The fixing module 32 includes a main cylinder 321 and fixing means 322 such as a bolster for fixing the weight of the main cylinder 321 to the frame while maintaining the weight thereof and a pressure induction pipe 323 for transferring pressure .

When molding is completed in the mold module 31, the molded product by the discharging module 39 can be discharged. The discharge module 39 may comprise a draw-out unit 391 and a conveying conveyor 392. When the cooling process is completed, one side of the mold module 31 is opened and at least one of the pair of molds 312a and 312b is guided and guided by a guide, for example, a tie bar, . Specifically, the main cylinder 321 is operated by the operation of the pressure control module 36, so that one mold 312a is moved, and the product is moved to be positioned in the drawing unit 391. The product formed by the draw-out unit 391 can be discharged to the outside of the mold module 31 and is positioned in the conveying conveyor 392. [ By the operation of the conveying conveyor 392, the injection-molded product can be moved to a predetermined place.

The pressure control module 36 for controlling the pressure inside the main cylinder 321 may include a hydraulic device 361, a hydraulic control unit 362 and an accumulator 123 for preventing the occurrence of pulsation . The pressure control module 36 operates the main cylinder 321 while stably fixing the mold module 32 during the operation of the injection module 35 so that the molded product can be discharged.

The injection apparatus 30 may include a control unit, and the operation process of each unit may be controlled by the control unit. For example, an infrared camera HC may be installed to monitor the molten state of the material and data related to the temperature inside the vacuum chamber 131 detected by the thermal imaging camera HC may be transmitted to the control unit have. The control unit can determine the operation level of the high frequency unit 332 according to the transmitted information.

The internal pressure of the mold module 31 or the chamber module 33 can be controlled, and for example, the mold module 31 or the chamber module 33 can be made in a vacuum state. A pressure control module 37 may be provided to regulate the pressure inside the mold module 31 or the chamber module 33 and the pressure control module 37 may include first and second vacuum pumps 371a and 371b, There may be provided coolers 372a and 372b for cooling according to the operation of the vacuum pumps 371a and 371b. Each of the vacuum pumps 371a and 371b can regulate the pressures of the mold module 31 or the chamber module 33. The coolers 372a and 372b may have a function of controlling the temperature of the entire injection apparatus 30. [ The injection apparatus 30 has a horizontal structure so that the uniformity of the molten material is improved. The injection cylinder 333 or the chamber module 33 may be rotatably installed.

The method according to the present invention can be applied to an injection apparatus having various structures.

The injection molding method according to the present invention can be applied to the manufacture of various industrial materials having complex shapes and strength and elasticity, including automobile parts, computer parts, frames of mobile devices, sporting goods and aircraft parts. Further, the method according to the present invention is not limited to the shape of the parts, but allows mass production of precision parts such as plastic injection molded parts.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention . The invention is not limited by these variations and modifications, but is limited only by the claims appended hereto.

100: mold 10, 20: sub-mold
11, 21: contact surface 12 injection groove
13: forming groove 14: injection hole
15: Guide hole 16: Position fixing unit
17: Restriction extension groove 22: Coupling groove
23: pressure groove 25: guide member
26: fastening and fixing unit 27: sealing projection
30: Injection device 31: Mold module
32: fixed module 33: chamber module
34: input module 311: injection chamber
312a, 312b: mold 332: high frequency unit
333: cooling unit 334: injection cylinder
341: Input tube

Claims (5)

Melting a metal or non-metallic material at a temperature of 600 to 1200 to produce an alloy including an amorphous alloy or an amorphous component;
Preparing a mold in which the alloy is melted and injected;
Making the alloy into a spherical or pseudo spherical shape having an average diameter of 1 to 15 and melting it at a high frequency applying coil at a temperature of 600 to 1200;
Injecting the molten alloy into the mold; And
And injection-molding the mold in a predetermined shape,
Wherein the mold comprises a pair of sub-molds having opposing contact surfaces and a sealed space formed by the contact of the contact surfaces. The injection molding method of claim 1, wherein the molten alloy is injected at the side of the pair of sub-molds and the pair of sub-molds are relatively moved in the horizontal direction. The injection molding method of claim 1, wherein the alloy is made of zirconium, titanium, beryllium, copper, nickel, aluminum and silicon, or aluminum, titanium, copper, nickel and beryllium. The injection molding method of claim 1, wherein the alloy has a shrinkage ratio of 0.002 to 0.8% during cooling from a temperature of 600 to 1200 at room temperature. The injection molding method of an alloy according to claim 1, wherein the pair of molds is made of stainless steel to which carbon, silicon, manganese, chromium, molybdenum, and vanadium are added.
KR1020140109669A 2014-08-22 2014-08-22 Method for Producing Articles Using Injection Molding of Alloy KR20160023365A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020140109669A KR20160023365A (en) 2014-08-22 2014-08-22 Method for Producing Articles Using Injection Molding of Alloy

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020140109669A KR20160023365A (en) 2014-08-22 2014-08-22 Method for Producing Articles Using Injection Molding of Alloy

Related Child Applications (1)

Application Number Title Priority Date Filing Date
KR1020160053276A Division KR20160053893A (en) 2016-04-29 2016-04-29 Method for Producing Articles Using Injection Molding of Alloy

Publications (1)

Publication Number Publication Date
KR20160023365A true KR20160023365A (en) 2016-03-03

Family

ID=55535365

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020140109669A KR20160023365A (en) 2014-08-22 2014-08-22 Method for Producing Articles Using Injection Molding of Alloy

Country Status (1)

Country Link
KR (1) KR20160023365A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023236719A1 (en) * 2022-06-11 2023-12-14 安徽昊方机电股份有限公司 Needle for warp knitting machine and method for manufacturing needle by means of amorphous alloy injection molding process

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100768700B1 (en) 2006-06-28 2007-10-19 학교법인 포항공과대학교 Fabrication method of alloy parts by metal injection molding and the alloy parts
KR20140003069A (en) 2012-06-29 2014-01-09 한국생산기술연구원 Metal member having inner structure, inner structure molding frame, injection molding method of metal member using the same and metal member manufactured by the same
KR20140068246A (en) 2011-09-30 2014-06-05 크루서블 인텔렉츄얼 프라퍼티 엘엘씨. Injection molding of amorphous alloy using an injection molding system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100768700B1 (en) 2006-06-28 2007-10-19 학교법인 포항공과대학교 Fabrication method of alloy parts by metal injection molding and the alloy parts
KR20140068246A (en) 2011-09-30 2014-06-05 크루서블 인텔렉츄얼 프라퍼티 엘엘씨. Injection molding of amorphous alloy using an injection molding system
KR20140003069A (en) 2012-06-29 2014-01-09 한국생산기술연구원 Metal member having inner structure, inner structure molding frame, injection molding method of metal member using the same and metal member manufactured by the same

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023236719A1 (en) * 2022-06-11 2023-12-14 安徽昊方机电股份有限公司 Needle for warp knitting machine and method for manufacturing needle by means of amorphous alloy injection molding process

Similar Documents

Publication Publication Date Title
EP3075465B1 (en) Device and process for casting forming of amorphous alloy component
KR20070001094A (en) Injection molding device
EP2611558B1 (en) High aspect ratio parts of bulk metallic glass and methods of manufacturing thereof
US20200061878A1 (en) Rotary high speed low compression thermoplastic molding method and apparatus
KR101197419B1 (en) Forming method of thick leading light plate and forming die
EP3075466B1 (en) Device and process for casting forming of amorphous alloy components
EP2860006B1 (en) Method for molding fiber-reinforced plastic, and molding device for same
CN107548341B (en) Method for producing fiber-reinforced plastic molded article
WO2015078210A1 (en) Device for casting forming of amorphous alloy components
JP4011256B2 (en) Vacuum melting injection molding machine for active alloy molding
KR20160053893A (en) Method for Producing Articles Using Injection Molding of Alloy
KR20160023365A (en) Method for Producing Articles Using Injection Molding of Alloy
CN111705234A (en) Preparation process of high-hardness product
KR101578779B1 (en) System and method of forming amorphous material
CN109228201A (en) A kind of injection transfer moulding method
US9895832B2 (en) Method of manufacturing plastic lens, and method for manufacturing mold for forming optical lens
JP2020090035A (en) Injection molding mold, method for manufacturing injection molding mold, injection molding machine, and method for manufacturing resin molding
CN105149584B (en) A kind of powder injecting molding die and its application method
JP2019171629A (en) Mold system
KR102259766B1 (en) Flexible homogeneous press forming device including magnetic rigid gel
WO2000070114A1 (en) Production method for magnesium alloy member
CN104302424B (en) The manufacturing process of amorphous alloy and the formed products being manufactured using this manufacturing process
SI25198A (en) Pressing tool for the manufacture of flat articles of artificial material in conditions of reduced air pressure
KR20190081290A (en) Mold structure for molding amorphous material
KR20150143391A (en) Horizontal Type of Apparatus for Injection Casting of Metal and Method for Injecting Alloy of Meta

Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application