CN116174669A

CN116174669A - Alloy casting method and apparatus

Info

Publication number: CN116174669A
Application number: CN202111432933.4A
Authority: CN
Inventors: 吴信廷; 陈盛勇; 黄菀筠
Original assignee: Metal Industries Research and Development Centre
Current assignee: Metal Industries Research and Development Centre
Priority date: 2021-11-29
Filing date: 2021-11-29
Publication date: 2023-05-30

Abstract

The invention provides an alloy casting method and device, which are used for solving the problem that alloy segregation is easy to occur in the existing alloy casting method. Comprising the following steps: introducing a molten metal into a forming channel such that a liquid surface of the molten metal is covered by a graphite layer; and controlling the molten metal to flow in the forming channel and advance towards a conveying path extending axially, and cooling the molten metal to be formed into an alloy material.

Description

Alloy casting method and apparatus

Technical Field

The present invention relates to a casting method and apparatus, and more particularly, to an alloy casting method and apparatus.

Background

In the conventional alloy casting method, a molten metal is cast into a mold, and the molten metal is cooled to obtain an ingot. However, when the molten metal is an alloy composed of a plurality of different metals, the alloy segregation tends to occur in each alloy due to uneven distribution of each element during crystallization, and the subsequent application of the alloy is affected.

In view of the above, there is a need for improvement in the existing alloy casting methods.

Disclosure of Invention

In order to solve the above problems, an object of the present invention is to provide an alloy casting method and apparatus capable of reducing the occurrence of alloy segregation.

The invention further aims to provide an alloy casting method and device which can improve the product quality.

It is still another object of the present invention to provide an alloy casting method and apparatus that can enhance process convenience.

It is still another object of the present invention to provide a method and apparatus for casting an alloy that can enhance applications in a variety of fields.

Throughout this disclosure, directional or approximate terms, such as "front", "back", "left", "right", "upper (top)", "lower (bottom)", "inner", "outer", "side", etc., refer primarily to the direction of the drawings and are used merely to aid in the description and understanding of various embodiments of the present invention and are not intended to be limiting.

The use of the terms "a" or "an" for the components and members described throughout this disclosure is for convenience only and provides a general sense of the scope of the invention; it should be understood that the present invention includes one or at least one, and that the singular concept also includes the plural unless it is obvious that it is meant otherwise.

The terms "coupled," "assembled," or "assembled" as used throughout this disclosure, generally include those that are separated without damaging the components after connection, or that are not separated after connection, and may be selected by one skilled in the art based on the materials or assembly requirements of the components to be connected.

The alloy casting method of the invention comprises the following steps: introducing a molten metal into a forming channel such that a liquid surface of the molten metal is covered by a graphite layer; and controlling the molten metal to flow in the forming channel and advance towards a conveying path extending axially, and cooling the molten metal to be formed into an alloy material.

The alloy casting device of the invention comprises: a first mold unit having a first molding member; and the second die unit is provided with at least one second molding piece relative to the first die unit, the second molding piece moves along the conveying path and is divided into a preparation area and a working area, the second molding piece is abutted with the first molding piece in the working area to surround the molding channel, and the graphite layer is positioned on the abutted surface of the first molding piece and the second molding piece.

Therefore, the alloy casting method and the device can take away heat in the forming channel more quickly by utilizing the graphite layer in the forming channel to contact the molten metal so that the molten metal can be cooled quickly, the generation of alloy segregation can be reduced effectively, the next operation and application can be carried out, and the effect of improving the product quality can be achieved.

Wherein the conveying speed of the molten metal in the forming channel can be 4-25 m/min. Thus, the alloy material can be formed in enough time, and the effect of maintaining the optimal state of the product quality is achieved.

The first molding member may be a steel strip rotating relative to the second mold unit, and the graphite layer may be bonded to the surface of the steel strip. Therefore, the structure is simple and convenient to manufacture, and has the effect of improving the process convenience.

The first shaping member may be a graphite plate, which is disposed in the working area and is used for abutting against the second shaping member. Therefore, the structure is simple and convenient to manufacture, and has the effect of improving the process convenience.

The second molding piece can be a plurality of copper molds, a plurality of copper alloy molds, a plurality of steel molds or a plurality of other alloy molds. Thus, the heat conduction is improved.

Wherein the second mold unit may have a cooling module facing the second molding. Therefore, the molten metal is cooled and shaped to strengthen the structure, and the effect of improving the product quality is achieved.

The first molding piece can be formed by a graphite plate and a fixed plate which are abutted together, the first molding piece is arranged in the working area, and a cooling pipeline can be arranged in the fixed plate in a penetrating mode. Therefore, the cooling pipeline can be used for cooling the graphite plate, so that the molten metal is cooled and shaped to strengthen the structure, and the effect of improving the product quality is achieved.

The cross section of the forming channel can be round, triangular, square or trapezoidal. Therefore, alloy materials with different cross-sectional shapes can be produced, and the effect of improving the application of the alloy materials in multiple fields is achieved.

The alloy casting device of the invention can further comprise a trimming unit, the forming channel defines an inlet and an outlet in the working area, the outlet is positioned between the inlet and the trimming unit, the trimming unit is provided with an adjusting wheel and a cutting piece, and the adjusting wheel is positioned between the outlet and the cutting piece. Therefore, the trimming unit can be used for trimming the alloy material, and the cutting piece can be used for cutting the alloy material to obtain an alloy ingot, so that the effect of improving the process convenience is achieved.

Drawings

Fig. 1: a plan view of a preferred embodiment of the present invention;

fig. 2: a cross-sectional view taken along line A-A of fig. 1;

fig. 3: in a preferred embodiment of the present invention, a partial structure of the first mold unit and the second mold unit is enlarged;

fig. 4: a preferred embodiment of the present invention comprises a partial construction cross-sectional view of the whole cutting unit;

fig. 5: in a preferred embodiment of the present invention, the first molding member is a plan view of a graphite plate and a fixed plate that are abutted against each other;

fig. 6: an enlarged view of B as in fig. 5;

fig. 7: a cross-sectional view along line C-C of fig. 5.

Description of the reference numerals

[ present invention ]

1 first die unit

11 first shaping piece

11a steel strip

11b graphite plate

11c fixing plate

12 tension pulley

13 cooling pipeline

2 second die unit

21 second shaping piece

22 rotating wheel

23 series connection piece

24 Cooling Module

3 integral cutting unit

31 adjusting wheel

32 cutting member

F: conveying path

F1 preparation zone

F2 working area

L molten metal

L1 alloy material

L2 alloy ingot

P shaping channel

P1:introduction port

P2:export

Q is a graphite layer.

Detailed Description

In order to make the above and other objects, features and advantages of the present invention more comprehensible, preferred embodiments accompanied with figures are described in detail below; in addition, the same symbols in different drawings are regarded as the same, and the description thereof will be omitted.

Referring to fig. 1 and 3, a preferred embodiment of the alloy casting method of the present invention comprises the following steps:

a molten metal L is introduced into a forming passage P so that a liquid surface of the molten metal L is covered with a graphite layer Q, and then the molten metal L is controlled to flow in the forming passage P and advance toward a conveying path F extending in an axial direction thereof, and the molten metal L is cooled to be shaped to form an alloy material L1.

The molten metal L may be formed by mixing a main metal raw material with a secondary element, the main metal raw material is placed in a melting furnace, which may be a low-frequency furnace or any furnace body capable of melting an alloy, the secondary element is added as required, and the main metal raw material and the secondary element are uniformly mixed by heating to form the molten metal L. The molten metal L may be aluminum, copper, iron, titanium, magnesium, and alloys thereof, and the main metal raw materials and the corresponding common additive elements thereof are selected as the secondary elements according to the requirements, which will be understood by those skilled in the art and will not be described again.

The forming channel P may have an inlet P1 and an outlet P2, the conveying path F is defined between the inlet P1 and the outlet P2, the molten metal L may be introduced into the forming channel P through the inlet P1, and the graphite layer Q in the forming channel P may cover the molten metal L, so that the heat in the forming channel P may be taken away more quickly by the graphite having good heat conductivity, lubricity, plasticity, etc., so that the molten metal L may be cooled quickly, and the alloy segregation may be effectively reduced.

Then, the molten metal L is controlled to flow in the forming passage P and advance toward the conveying path F, and the conveying speed of the molten metal L is preferably 4-25 m/min, and the molten metal L is cooled simultaneously, and the cooling manner may be liquid cooling or air cooling, which is not limited in the invention, so that the molten metal L can be cooled to be shaped to form an alloy material L1.

Referring to fig. 1 and 2, an alloy casting apparatus for implementing the alloy casting method according to the present embodiment includes: a first mould unit 1 and a second mould unit 2, the second mould unit 2 being opposite to the first mould unit 1.

The first mold unit 1 has a first molding member 11, the first molding member 11 may be a steel belt 11a rotating relative to the second mold unit 2, the graphite layer Q is bonded to the surface of the steel belt 11a, the first mold unit 1 may have a plurality of tension wheels 12, and the inner surface of the first molding member 11 may be bonded to the plurality of tension wheels 12, so that the plurality of tension wheels 12 may adjust tightness of the first molding member 11.

Referring to fig. 1, 2 and 3, the second mold unit 2 has at least one second molding member 21, the second molding member 21 may be made of copper, and the second molding member 21 moves along the conveying path F and divides the conveying path F into a preparation area F1 and a working area F2. In detail, the second mold unit 2 may have a plurality of rotating wheels 22 and a serial connection member 23, the serial connection member 23 may be, for example, a chain, the serial connection member 23 is connected to the plurality of rotating wheels 22, the number of the second molding members 21 may be a plurality of, for example, copper molds, copper alloy molds, steel molds or other alloy molds, which can have a material with a better metal liquid cooling effect, the plurality of second molding members 21 may be bound around the serial connection member 23, when the plurality of rotating wheels 22 rotate, the serial connection member 23 may drive the plurality of second molding members 21 to move along the conveying path F, and when the plurality of second molding members 21 and the first molding member 11 are abutted against each other in the working area F2 (as shown in fig. 1), the plurality of second molding members 21 and the first molding member 11 are protruded out of the molding channel P, and the graphite layer Q is located on the second molding member 12 abutted against the first molding member 12.

And, the second die unit 2 may have a cooling module 24, and the cooling module 24 may discharge water toward the plurality of second molding members 21, so that the molten metal L passing through the molding passage P may be cooled to be shaped to form the alloy material L1.

Referring to fig. 1 and 4, the alloy casting apparatus of the present invention may further include a complete cutting unit 3, the forming channel P defines the inlet P1 and the outlet P2 in the working area F2, and the outlet P2 is located between the inlet P1 and the complete cutting unit 3. In detail, the trimming unit 3 may have an adjusting wheel 31 and a cutting member 32, the adjusting wheel 31 may be located between the outlet P2 and the cutting member 32, the adjusting wheel 31 may be used for shaping the alloy material L1, and the cutting member 32 may be used for cutting the alloy material L1 to obtain an alloy ingot L2.

Referring to fig. 5 and 6, it is specifically described that, in other embodiments, the first molding member 11 may be formed by a graphite plate 11b (i.e. the graphite layer Q) and a fixed plate 11c that are abutted together, the first molding member 11 may be disposed in the working area F2, and the graphite plate 11b (i.e. the graphite layer Q) is used to abut against the plurality of second molding members 21, so that the plurality of second molding members 21 and the first molding member 11 surround the molding channel P when the plurality of second molding members 21 abut against the first molding member 11. A cooling pipe 13 may be disposed in the fixing plate 11c, and the cooling pipe 13 may be used to cool the graphite plate 11b (i.e. the graphite layer Q) so as to cool and shape the molten metal L to strengthen the structure.

Referring to fig. 7, the forming channel P can be formed by replacing the first molding member 11 and the second molding member 21, so that the cross section of the forming channel P can be circular, triangular, square or trapezoidal, thereby controlling the size and shape of the wire diameter of the alloy material L1 (as shown in fig. 3), producing alloy materials L1 with different cross section shapes, and being directly applicable to applications in multiple fields.

In summary, according to the alloy casting method and apparatus of the present invention, the graphite layer in the forming channel is used to contact the molten metal, so that heat in the forming channel can be taken away more quickly, the molten metal can be cooled rapidly, and the generation of alloy segregation can be reduced effectively, so that the next operation and application can be performed, and the product quality can be improved.

Claims

1. A method of casting an alloy, comprising:

introducing a molten metal into a forming channel such that a liquid surface of the molten metal is covered by a graphite layer; a kind of electronic device with high-pressure air-conditioning system

The molten metal is controlled to flow in the forming channel and advance towards a conveying path extending axially, and the molten metal is cooled to be shaped to form an alloy material.

2. The alloy casting method as claimed in claim 1, wherein a conveying speed of the molten metal in the forming passage is 4 to 25 m/min.

3. An alloy casting apparatus for carrying out the alloy casting method according to claim 1 or 2, comprising:

a first mold unit having a first molding member; a kind of electronic device with high-pressure air-conditioning system

The second mould unit is provided with at least one second shaping piece relative to the first mould unit, the second shaping piece moves along the conveying path and is divided into a preparation area and a working area, the second shaping piece is abutted with the first shaping piece in the working area to surround the shaping channel, and the graphite layer is positioned on the abutted surface of the first shaping piece and the second shaping piece.

4. An alloy casting apparatus according to claim 3, wherein the first shaping member is a steel strip rotating relative to the second die unit, and the graphite layer is bonded to the surface of the steel strip.

5. The alloy casting apparatus according to claim 3, wherein the first molding member is a graphite plate disposed in the working area for abutting the second molding member.

6. The alloy casting apparatus according to claim 3, wherein the second molding member is a plurality of copper molds, a plurality of copper alloy molds, a plurality of steel molds, or a plurality of other alloy molds.

7. An alloy casting apparatus according to claim 3, wherein the second mould unit has a cooling module facing the second shaping member.

8. The alloy casting device according to claim 3, wherein the first molding member is formed by a graphite plate and a fixing plate which are abutted together, the first molding member is arranged in the working area, and a cooling pipeline is arranged in the fixing plate in a penetrating manner.

9. An alloy casting apparatus according to claim 3, wherein the cross section of the forming passage is circular, triangular, square or trapezoidal.

10. The alloy casting apparatus of claim 3, further comprising a finishing unit, the forming tunnel defining an inlet and an outlet in the working area, the outlet being located between the inlet and the finishing unit, the finishing unit having an adjustment wheel and a cutting member, the adjustment wheel being located between the outlet and the cutting member.