TWI734231B - Metal part manufacturing process equipment and manufacturing method capable of continuously melting metal block in vacuum environment - Google Patents

Abstract

A metal part manufacturing process equipment, including: an extrusion device, including: a accommodating part, an extrusion rod and an extrusion die, wherein when the extrusion rod causes the metal block to flow out of the mold cavity to form at least one extrusion When forming a part, the metal block and the extrusion die will be airtight; a smelting device includes: a vacuum cavity, including an inlet, the inlet is connected to the mold cavity for receiving the extruded part, The airtight effect between the metal block and the extrusion mold will block the diffusion of outside air into the vacuum cavity through the inlet; and a heating unit is arranged in the vacuum cavity to melt the extrusion Forming a molten metal broth; and a forming device arranged in the vacuum chamber for forming the molten metal broth into a metal product.

Description

Metal part manufacturing process equipment and manufacturing method capable of continuously melting metal block in vacuum environment

The invention relates to a process equipment and a manufacturing method for metal parts, and more particularly to a process equipment and a manufacturing method for metal parts that can continuously melt metal blocks in a vacuum environment.

At present, vacuum induction melting gas atomization (VIGA, Vacuum Induction-melting Gas Atomization) equipment can be used to produce metal powder. 1, the conventional method of manufacturing metal powder is as follows: first, a metal material rod located in a melting furnace 98 is subjected to induction heating in a vacuum environment with an induction coil 99, so that the metal material rod is melted into a molten soup 91; The molten broth 91 is poured into a carrying crucible 92; finally, the molten broth 91 passes through a molten broth conveying pipe 93 in a flowing state and enters a nozzle 95, and is impacted and atomized by the high-speed inert gas G and quickly solidified into metal Powder P. However, in the vacuum induction melting gas atomization equipment, the metal material rods must be melted in batches before atomization can be carried out.

Electrode Induction Melting Gas Atomization (EIGA) equipment and plasma melting and atomization process can feed the wire continuously, but the surface quality of the wire is very particular, usually it must be refined for multiple rolling and fine extraction. And then the wire can be melted for atomization and pulverization. However, not all metal materials are suitable for calendering, fine drawing and coiling. For metal materials with no ductility at room temperature, continuous feeding of disk elements cannot be used, resulting in continuous production.

The Chinese Mainland Patent Authorization Announcement No. CN 207222946U discloses a device for producing spherical powder with continuous feeding of rods, including a spindle, a real Cavity, automatic chuck, automatic gripping device, raw material melting rod, connecting guide, transition guide, linear drive, linear guide, heating device, raw material melting rod tray, atomizer; the spindle is assembled in a vacuum The upper end of the chamber; the vacuum chamber includes a main working room, a transition door, a replacement door, a transition room, and a replacement room. The main working room is provided with a transition room, a transition door, a replacement room, and a replacement door in sequence. The transition room is equipped with raw materials For the melting rod tray, there is an automatic chuck at the lower end of the main shaft, and an automatic grabbing device is installed on the wall of the main working room perpendicular to the center of the raw material melting rod tray. In this patent document, the upper end of the raw material melt rod is processed into internal threads, and the lower end is processed into external threads that match the upper internal threads. Then one by one is sent into the vacuum chamber to complete the continuous feeding and continuous atomization of powder. Although the patent document can adopt continuous feeding of rods and continuous atomization to make powder, the metal material must be uniformly prepared into raw material melt rods with internal and external threads at the upper and lower ends, which will increase the cost of the manufacturing process.

Therefore, there is a need to provide a metal part manufacturing equipment and a manufacturing method that can continuously melt metal blocks in a vacuum environment to solve the aforementioned problems.

An object of the present invention is to provide a metal part manufacturing equipment that can continuously melt metal blocks in a vacuum environment, which can achieve continuous feeding of multiple metal blocks.

According to the above objective, the present invention provides a metal part manufacturing equipment, including: an extrusion device, including: an accommodating part for accommodating a metal block; an extrusion rod for extending into the accommodating part , And squeeze the metal block; and an extrusion die, including at least one cavity, the cavity is connected to the accommodating part, wherein when the extrusion rod causes the metal block to flow out of the cavity to form at least one extrusion When forming parts, there will be airtightness between the metal block and the extrusion mold; a smelting device includes: a vacuum cavity whose pressure is lower than atmospheric pressure and includes an inlet connected to the mold cavity for receiving The extruded part, in which the airtight effect between the metal block and the extruding mold will block the diffusion of outside air into the vacuum cavity through the inlet; and a heating unit, which is arranged in the vacuum cavity, for the extruded part Melt into a molten metal soup; and 10% The shape device is arranged in the vacuum chamber to form a metal product from the molten metal.

The present invention further provides a method for manufacturing a metal piece, including the following steps: performing an extrusion process, including: accommodating a metal block; extruding the metal block; and providing an extrusion die, including at least one cavity , Wherein when the extruding rod causes the metal block to flow out of the mold cavity to form at least one extruded part, the metal block and the extrusion die will be airtight; performing a smelting process includes: providing a The vacuum cavity has a pressure lower than atmospheric pressure and includes an inlet communicating with the mold cavity for receiving the extruded part, wherein the airtight effect between the metal block and the extrusion mold will be blocked The outside air diffuses into the vacuum cavity through the inlet; and the extruded part is melted into a molten metal soup; and a forming process is performed to form the molten metal soup into a metal product.

Since the airtight effect between the metal block and the extrusion mold will block the diffusion of outside air into the vacuum cavity, the vacuum degree of the vacuum cavity will not be damaged when the metal block is fed, so that the metal block can be achieved. The continuous feeding.

1‧‧‧Metal parts process equipment

1’‧‧‧Metal parts manufacturing equipment

101‧‧‧Metal block

102‧‧‧Extrusion

103‧‧‧Metal Molten Soup

104‧‧‧Metal products

104’‧‧‧Metal products

11‧‧‧Extrusion device

111‧‧‧Containment Department

112‧‧‧Squeeze rod

113‧‧‧Extrusion mould

1131‧‧‧Mould Cavity

114‧‧‧Preheating unit

12‧‧‧Smelting device

121‧‧‧Vacuum chamber

1211‧‧‧Entrance

1212‧‧‧Carrying crucible

122‧‧‧Heating Unit

13‧‧‧Forming device

13’‧‧‧Forming device

14‧‧‧Atomization unit

141‧‧‧Nozzle outlet

142‧‧‧Inert gas

15‧‧‧Forming die

2‧‧‧Metal parts manufacturing equipment

2’‧‧‧Metal parts manufacturing equipment

201‧‧‧Metal block

202‧‧‧Extrusion

203‧‧‧Metal Molten Soup

204‧‧‧Metal products

204’‧‧‧Metal products

21‧‧‧Extrusion device

211‧‧‧Containing Department

212‧‧‧Squeeze rod

213‧‧‧Extrusion mould

2131‧‧‧Mould Cavity

214‧‧‧Preheating unit

22‧‧‧Smelting device

221‧‧‧Vacuum chamber

2211‧‧‧Entrance

222‧‧‧Heating Unit

23‧‧‧Forming device

23'‧‧‧Forming device

24‧‧‧Atomization unit

241‧‧‧Nozzle outlet

242‧‧‧Inert gas

25‧‧‧Forming mold

91‧‧‧Molten Soup

92‧‧‧Carrying Crucible

93‧‧‧Molten soup delivery catheter

95‧‧‧Nozzle

98‧‧‧Forge

99‧‧‧Induction coil

G‧‧‧Inert gas

P‧‧‧Metal powder

Figure 1 is a schematic cross-sectional view of a conventional metal powder manufacturing equipment.

2 is a schematic cross-sectional view of the metal part manufacturing equipment according to the first embodiment of the present invention.

3 is a schematic cross-sectional view of a metal part manufacturing equipment according to another embodiment of the present invention.

4 is a schematic cross-sectional view of a metal part manufacturing equipment according to a second embodiment of the present invention.

5 is a schematic cross-sectional view of a metal part manufacturing equipment according to a third embodiment of the present invention.

6 is a schematic cross-sectional view of a metal part manufacturing equipment according to a fourth embodiment of the present invention.

In order to make the above-mentioned objectives, features and characteristics of the present invention more obvious and understandable, the relevant embodiments of the present invention are described in detail as follows in conjunction with the drawings.

2 is a schematic cross-sectional view of the metal part manufacturing equipment according to the first embodiment of the present invention. The metal part manufacturing equipment 1 can be a equipment that uses a vacuum induction melting gas atomization (VIGA) process combined with an extrusion process. 1 package of the metal parts manufacturing equipment Including: an extrusion device 11, a smelting device 12 and a forming device 13. The extrusion device 11 includes: a receiving portion 111, an extrusion rod 112 and an extrusion die 113. The accommodating portion 111 is used for accommodating a metal block 101. In one embodiment, the accommodating portion 111 is a bucket for tablets. The squeezing rod 112 is used to extend into the accommodating portion 111 and squeeze the metal block 101. The metal block 101 may be an ingot, such as a round ingot or a square ingot. The material of the metal block 101 can be pure metal materials such as magnesium, aluminum, copper, tin, or their alloy materials. The extrusion die 113 includes at least one cavity 1131, and the cavity 1131 is connected to the accommodating portion 111. When the extrusion rod 112 causes the metal block 101 to flow out of the cavity 1131 to form an extruded part 102, the metal block An air tight seal is formed between 101 and the extrusion die 113. The extrusion 102 can be a single rod or a single wire. The material of the extrusion die 113 can be die steel, carbon steel, stainless steel, etc. The die steel mentioned above refers to the type of steel that can be used to make molds such as cold stamping dies, hot forging dies, or die-casting dies. The extrusion device 11 may further include a preheating unit 114 (such as an induction coil) for preheating the metal block 101 in the containing portion 111.

The melting device 12 includes a vacuum chamber 121 and a heating unit 122. The vacuum cavity 121 has a pressure lower than atmospheric pressure and includes an inlet 1211 connected to the cavity 1131 for receiving the extruded part 102. The airtight effect between the metal block 101 and the extrusion mold 113 will be The outside air is blocked from diffusing into the vacuum chamber 121 via the inlet 1211. The heating unit 122 (such as an induction coil) is disposed in the vacuum chamber 121 to melt the extruded part 102 into a molten metal 103. The vacuum chamber 121 further includes a supporting crucible 1212 for accommodating the extruded part 102. The heating unit 122 surrounds the carrying crucible 1212 to melt the extruded part 102 in the carrying crucible 1212 into a molten metal 103.

The forming device 13 is disposed in the vacuum chamber 121 to form the molten metal 103 into a metal product 104. The forming device 13 may be an atomizing unit 14 for forming the molten metal 103 into a metal product 104, which is a metal powder. The atomizing unit 14 includes a nozzle outlet 141 and an inert gas 142 for impacting and atomizing the molten metal 103 at the position of the nozzle outlet 141 to quickly solidify into the metal powder.

3 is a schematic cross-sectional view of a metal part manufacturing equipment capable of continuously melting metal blocks in a vacuum environment according to another embodiment of the present invention. The extruding rod 112 causes the metal block 101 to flow out from the mold cavity 1131 to form a plurality of extruded parts 102, each of which is a plurality of rods or wires. Compared with the wire diameter of a single rod or a single wire shown in FIG. 2, the multiple rods or wires shown in FIG. 3 have a smaller wire diameter, which is helpful for rapid melting and achieving the purpose of continuous melting.

For example, use the metal part manufacturing equipment of the present invention that can continuously melt metal blocks in a vacuum environment to manufacture magnesium alloy powder:

A. The relevant parameters are as follows: Magnesium alloy composition is AZ91 (Mg: 9%, Al: 0.8%, Zn: 1%), magnesium alloy round ingot (ie metal block 101) with a diameter of 75mm, extruded ingot (ie metal Block 101) Preheating temperature: 410℃, extrusion die temperature: 400℃, container temperature: 410℃, extruded wire (ie extruded part 102) diameter: 10mm, extruded wire (ie extruded part 102) ) Quantity: 5 lines, extrusion pressure: 80kg/mm ² , extrusion speed: 15mm/min, melting/holding temperature (powder making temperature): 750℃, inert gas guide tube inner diameter: 5mm, atomization pressure: 2MPa .

B. The related manufacturing process is as follows: Step 1: First evacuate the vacuum chamber 121 to 10 ^-5 torr, backfill with argon gas to 0.9 atm, and backfill the accommodating portion 111 to 1 atm. Step 2: Start the induction coil (heating unit 122), heat the carrying crucible 1212 to the powder making temperature, and melt the 50 kg magnesium alloy previously placed in the carrying crucible 1212. Step 3: Adjust and control each extrusion condition to the target parameter, put the magnesium alloy round ingot into the accommodating part 111, start the extrusion device, and the extrusion rod 112 extrudes the magnesium alloy round ingot into magnesium alloy wire to load Inside the crucible 1212, the inert gas guide tube is opened, the atomized inert gas and the blower are started, and the metal powder is prepared. Step 4: When the first metal block material (magnesium alloy round ingot) is extruded with a thickness of 10mm, exit the extrusion rod 112, put in the second metal block material (magnesium alloy round ingot), and continue to push in the extrusion rod 112 extrude the second block material into a magnesium alloy wire into the carrying crucible. Step 5: According to the method of step 4, put in the third metal block material, the fourth metal block material, ... to complete the continuous feeding and powder making.

Since the airtight effect between the metal block 101 and the extrusion die 113 will block the diffusion of outside air into the vacuum cavity 121, a plurality of metal blocks are fed When the material 101 is used, the vacuum degree of the vacuum chamber 121 will not be damaged, so that the continuous feeding of a plurality of metal blocks 101 can be achieved.

The present invention has the following effects: 1. The metal part process equipment of the present invention combines the extrusion process and the VIGA process to realize the continuous feed production of the vacuum atomization process, complete the goal of debottlenecking the process, and greatly improve the production efficiency of the powdering operation. 2. The wire extruded by the extrusion device used in the present invention can directly enter the vacuum chamber for induction melting, and then atomize into metal powder, without considering the surface quality of the wire itself and whether the material itself can be coiled. 3. The extrusion-type atomization composite powder making equipment developed by the present invention can extrude wires or rods of various wire diameters, or hollow thin tubes according to atomization requirements to improve atomization efficiency. 4. The metal part manufacturing process equipment of the present invention can extrude multiple wires or bars at one time to improve the melting efficiency.

4 is a schematic cross-sectional view of a metal part manufacturing equipment according to a second embodiment of the present invention. The metal part manufacturing process equipment 2 may be an equipment using an electrode induction melting gas atomization powder (EIGA) process combined with an extrusion process, or an equipment using a plasma melting atomization process combined with an extrusion process. The metal processing equipment 2 includes: an extrusion device 21, a smelting device 22 and a forming device 23. The extrusion device 21 includes a receiving portion 211, an extrusion rod 212 and an extrusion die 213. The accommodating portion 211 is used for accommodating a metal block 201. The squeezing rod 212 is used to extend into the accommodating portion 211 and squeeze the metal block 201. The material of the metal block 201 can be pure metal materials such as magnesium, aluminum, copper, tin, titanium, or their alloy materials. The extrusion mold 213 includes at least one mold cavity 2131, which is connected to the accommodating portion 211, wherein when the extrusion rod 212 causes the metal block 201 to flow out of the mold cavity 2131 to form an extruded part 202, the metal block 201 There will be an air tight seal with the extrusion die 213. The extrusion 202 can be a single round rod or a single round tube. The extrusion device 21 may further include a preheating unit 214 (for example, an induction coil) for preheating the metal block 201 in the containing portion 211.

The melting device 22 includes a vacuum chamber 221 and a heating unit 222. The vacuum cavity 221 has a pressure lower than atmospheric pressure, and includes an inlet 2211 connected to the mold cavity 2131 for receiving the extruded part 202. The airtight effect between the metal block 201 and the extrusion mold 213 will hinder Cut off the outside air through the inlet 2211 to Diffusion in the vacuum cavity 221. The heating unit 222 (such as an induction coil) is disposed in the vacuum cavity 221 to melt the extruded part 202 into a molten metal 203.

In one embodiment, the forming device 23 is disposed in the vacuum chamber 221 for forming the molten metal 203 into a metal product 204. The forming device 23 may be an atomizing unit 24 for forming the molten metal 203 into a metal product 204, which is a metal powder. The atomizing unit 24 includes a nozzle outlet 241 and an inert gas 242 for impacting and atomizing the molten metal 203 at the position of the nozzle outlet 241 to quickly solidify into metal powder.

Since the airtight effect between the metal block 201 and the extrusion mold 213 will block the diffusion of outside air into the vacuum cavity 221, the vacuum degree of the vacuum cavity 221 will not be damaged when the metal blocks 201 are fed. In this way, the continuous feeding of the metal block 201 can be achieved.

The present invention has the following effects: 1. The metal part process equipment of the present invention combines the extrusion process with the EIGA process or the plasma melting and atomization process to realize the continuous feeding and production of the vacuum atomization process and complete the goal of debottlenecking the process, which can greatly Improve the production efficiency of flour milling operations. 2. The wire or bar extruded by the extrusion device used in the present invention can directly enter the vacuum chamber for induction melting, and then atomize into metal powder, without considering the surface quality of the wire itself and whether the material itself can be coiled. 3. The present invention can directly melt and atomize the extruded wire into metal powder, eliminating the need for wire precision control, and can greatly reduce the cost of wire preparation. 4. The extrusion-type atomization composite powder milling equipment developed by the present invention can extrude wires or rods of various wire diameters, or hollow thin tubes according to atomization requirements to improve atomization efficiency. 5. The metal part process equipment of the present invention combines the extrusion process with the EIGA process or the plasma melting and atomization process, and can directly use the original block material for induction melting inert gas atomization, reducing the cost of raw materials.

5 is a schematic cross-sectional view of a metal part manufacturing equipment according to a third embodiment of the present invention. The metal part manufacturing process equipment 1'may be an equipment using a vacuum induction melting gas atomization (VIGA) process combined with a vacuum casting process. The metal part manufacturing equipment 1'of the third embodiment is substantially similar to the metal part manufacturing equipment 1 of the first embodiment, and similar components are marked with similar numbers. The metal part manufacturing process equipment 1'of the third embodiment and the first The difference of the metal part manufacturing equipment 1 of an embodiment is that the forming device 13' is arranged in the vacuum chamber 121 for forming the molten metal 103 into a metal product 104'. The forming device 13' may be a forming mold 15, to which the molten metal 103 is poured, so that the molten metal 103 is formed into a metal product 104'.

Since the airtight effect between the metal block 101 and the extrusion mold 113 will block the diffusion of outside air into the vacuum cavity 121, the vacuum degree of the vacuum cavity 121 will not be damaged when the metal block 101 is fed. In order to achieve the continuous feeding of the metal block 101.

The present invention has the following effects: 1. The metal part process equipment of the present invention combines the extrusion process and the vacuum casting process to realize the continuous feeding production of the vacuum casting process, complete the goal of debottlenecking the process, and greatly improve the production efficiency of casting operations. 2. The wire extruded by the extrusion device used in the present invention can directly enter the vacuum chamber for induction melting, and then cast to form the metal product, regardless of the surface quality of the wire itself and whether the material itself can be coiled. 3. The extrusion casting compound casting equipment developed by the present invention can extrude wires or rods of various diameters, or hollow thin tubes according to casting requirements, to improve casting efficiency. 4. The metal part manufacturing process equipment of the present invention can extrude multiple wires or bars at one time to improve the melting efficiency.

6 is a schematic cross-sectional view of a metal part manufacturing equipment according to a fourth embodiment of the present invention. The metal part manufacturing process equipment 2'may be an equipment using an electrode induction melting gas atomization powder (EIGA) process combined with vacuum casting, or an equipment using a plasma melting atomization process combined with an extrusion process combined with a vacuum casting process. The metal part manufacturing equipment 2'of the fourth embodiment is substantially similar to the metal part manufacturing equipment 2 of the second embodiment, and similar components are marked with similar numbers. The difference between the metal processing equipment 2'of the fourth embodiment and the metal processing equipment 2 of the second embodiment is that the forming device 23' is arranged in the vacuum chamber 221 for forming the molten metal 203 into a metal product 204 '. The forming device 23' may be a forming mold 25, and the molten metal 203 is poured into the forming mold 25, so that the molten metal 203 is formed into a metal product 204'.

Since the airtight effect between the metal block 201 and the extrusion die 213 will block the diffusion of outside air into the vacuum cavity 221, the metal block 201 is fed At this time, the vacuum degree of the vacuum chamber 221 will not be damaged, so that the continuous feeding of the metal block 201 can be achieved.

The present invention has the following effects: 1. The metal part process equipment of the present invention combines the extrusion process and the vacuum casting process to realize the continuous feeding production of the vacuum casting process, complete the goal of debottlenecking the process, and greatly improve the production efficiency of casting operations. 2. The wire or bar extruded by the extrusion device used in the present invention can directly enter the vacuum chamber for induction melting, and then cast to form the metal product, without considering the surface quality of the wire itself and whether the material itself can be coiled. 3. The present invention can directly melt and cast the extruded wire into the metal product, eliminating the need for wire precision control, and greatly reducing the cost of wire preparation. 4. The extrusion casting compound casting equipment developed by the present invention can extrude wires or rods of various wire diameters, or hollow thin tubes according to casting requirements to improve casting efficiency.

In addition, the present invention provides a method for manufacturing metal parts, including the following steps:

Performing an extrusion process includes: accommodating a metal block; extruding the metal block; and providing an extrusion die, including at least one cavity, wherein when the extrusion rod causes the metal block to move from the above When the mold cavity flows out to form at least one extruded part, airtightness will be generated between the metal block and the extrusion die.

Carrying out a smelting process includes: providing a vacuum chamber with a pressure lower than atmospheric pressure and including an inlet, the inlet communicating with the mold cavity for receiving the extruded part, wherein the metal block and the extruded The airtight effect between the molds can block the diffusion of outside air into the vacuum cavity through the inlet; and the extruded part is melted into a molten metal.

A forming process is performed to form a metal product from the above-mentioned molten metal. The aforementioned forming process is an atomization process for forming the aforementioned metal product from the aforementioned molten metal, and the aforementioned metal product is a metal powder. The above-mentioned forming process is a casting process, so that the above-mentioned molten metal is formed into the above-mentioned metal product.

In summary, it is only a description of the preferred implementations or examples of the technical means adopted by the present invention to solve the problem, and is not intended to limit the present invention. Explain the scope of patent implementation. That is to say, all changes and modifications that are consistent with the scope of the patent application of the present invention or made in accordance with the scope of the patent of the present invention are all covered by the scope of the patent of the present invention.

1‧‧‧Metal parts process equipment

101‧‧‧Metal block

102‧‧‧Extrusion

103‧‧‧Metal Molten Soup

104‧‧‧Metal products

11‧‧‧Extrusion device

111‧‧‧Containment Department

112‧‧‧Squeeze rod

113‧‧‧Extrusion mould

1131‧‧‧Mould Cavity

114‧‧‧Preheating unit

12‧‧‧Smelting device

121‧‧‧Vacuum chamber

1211‧‧‧Entrance

1212‧‧‧Carrying crucible

122‧‧‧Heating Unit

13‧‧‧Forming device

14‧‧‧Atomization unit

141‧‧‧Nozzle outlet

142‧‧‧Inert gas

Claims (10)

A metal part manufacturing process equipment, including: an extrusion device, including: an accommodating part for accommodating a metal block; an extruding rod for extending into the accommodating part, and perform Extrusion; and an extrusion die, comprising at least one die cavity connected to the accommodating portion, wherein when the extrusion rod causes the metal block to flow out of the die cavity to form at least one extruded part, The metal block material and the extrusion die will be airtight; a smelting device includes: a vacuum cavity whose pressure is lower than atmospheric pressure and includes an inlet connected to the mold cavity for receiving The extruded part; and a heating unit arranged in the vacuum chamber to melt the extruded part into a molten metal soup; and a forming device arranged in the vacuum chamber to form the molten metal soup A metal product; wherein the air-tight effect between the metal block and the extrusion mold will block the diffusion of outside air into the vacuum cavity through the inlet. As for the metal part manufacturing equipment described in claim 1, wherein the vacuum chamber further includes a carrying crucible for accommodating the extruded part; and the heating unit surrounds the carrying crucible for holding The extruded part in the carrying crucible is melted into the molten metal. The metal part manufacturing equipment described in item 1 or 2 of the scope of patent application, wherein the forming device is an atomizing unit for forming the metal melt into the metal product, and the metal product is metal powder. As described in item 3 of the scope of patent application, the atomizing unit includes a nozzle outlet and an inert gas for impacting and atomizing the molten metal at the nozzle outlet position to quickly solidify into The metal powder. According to the metal part processing equipment described in item 1 or 2 of the scope of patent application, the forming device is a forming mold, and the molten metal is poured into the forming mold, so that the molten metal is formed into the metal product. As described in the first item of the scope of patent application, the metal part manufacturing equipment, wherein the at least one extruded part is a single round rod or a single round tube. As described in the first item of the scope of patent application, the metal part manufacturing equipment, wherein the at least one extruded part is a plurality of bars or a plurality of wires. A method for manufacturing a metal piece includes the following steps: performing an extrusion process, including: accommodating a metal block; extruding the metal block; and providing an extrusion die, including at least one cavity, one of which is When the extruding rod causes the metal block to flow out of the mold cavity to form at least one extruded part, airtightness will be created between the metal block and the extrusion die; performing a smelting process includes: providing a vacuum cavity , Its pressure is lower than atmospheric pressure, and includes an inlet communicating with the mold cavity for receiving the extruded part; and melting the extruded part into a molten metal; and performing a forming process to remove the metal The molten broth forms a metal product; wherein the airtight effect between the metal block and the extrusion mold will block the diffusion of outside air into the vacuum cavity through the inlet. According to the method for manufacturing a metal piece described in item 8 of the scope of patent application, the forming process is an atomization process to form the metal product from the molten metal, and the metal product is metal powder. The method for manufacturing a metal piece as described in item 8 of the scope of patent application, wherein the forming process is a casting process to form the metal product from the molten metal.

Images