A low-pressure casting crucible holding furnace facilitating aluminum addition

Abstract

The utility model provides a kind of low-pressure casting with convenient aluminum adding crucible heat preservation furnace, including heat preservation pot body, graphite crucible is equipped in the heat preservation pot body, heat preservation furnace cover is equipped in the upper end of heat preservation pot body, small furnace cover is arranged on the heat preservation furnace cover, opening is equipped on the small furnace cover, aluminum adding port bushing is installed in the opening, aluminum adding port cover is hinged on the top surface of small furnace cover outside, aluminum adding port cover is installed in one side of opening, the other side of opening is equipped with port cover locking block.This crucible furnace is opened hole on small furnace cover, and installs the aluminum adding port bushing of silicon carbide material, by aluminum adding port bushing, pour aluminum liquid into heat preservation furnace, convenient and fast;While, the inside volume of crucible is separated into two parts before and after by setting the silicon carbide material's slag baffle in crucible, and the impurity and surface oxide in aluminum liquid are blocked, when slag and oxide in crucible are more, it can be cleaned by regularly opening small furnace cover mode.This structure is more convenient and fast compared with current conventional aluminum liquid adding mode.

Description

Technical Field

[0001] This utility model relates to the field of aluminum die casting technology, specifically to a low-pressure casting crucible holding furnace that facilitates aluminum addition. Background Technology

[0002] Aluminum die castings are a type of pressure-casting part. They are made by using a pressure casting machine equipped with a casting mold. Molten aluminum or aluminum alloy is poured into the feed port of the die casting machine and then die-cast to produce aluminum or aluminum alloy parts with shapes and sizes limited by the mold. Such parts are usually called aluminum die castings. The melting of aluminum alloy mainly involves an aluminum alloy melting furnace followed by a holding furnace. The aluminum alloy is first placed in the aluminum alloy melting furnace for melting, and after melting, the molten aluminum is transferred to the aluminum alloy holding furnace for later use.

[0003] The current industry standard for adding molten aluminum involves: unscrewing the fixing bolts on the lower furnace cover locking block, using lifting equipment to move the small furnace cover and the riser pipe together to the riser pipe holding furnace for heat preservation; after the molten aluminum in the crucible is filled, the small furnace cover is reattached, hoisted onto the furnace body, and the locking block is re-fixed. This process is complex, inefficient, and consumes a lot of resources, which violates the principles of green energy conservation.

[0004] This case arose in order to resolve the aforementioned issues. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] The purpose of this invention is to provide a low-pressure casting crucible holding furnace that facilitates aluminum addition, in order to solve the problems mentioned in the background art.

[0007] (II) Technical Solution

[0008] To achieve the above objectives, this utility model is implemented through the following technical solution: a low-pressure casting crucible heat preservation furnace for easy aluminum addition, comprising a heat preservation pot body, a graphite crucible disposed inside the heat preservation pot body, a heat preservation furnace cover disposed at the upper end of the heat preservation pot body, a small furnace cover disposed on the heat preservation furnace cover, an opening disposed on the small furnace cover, an aluminum addition port liner installed in the opening, an aluminum addition port cover hinged to the outer top surface of the small furnace cover, the aluminum addition port cover being installed on one side of the opening, and a port cover locking block disposed on the other side of the opening.

[0009] Preferably, a perforation is provided at the center of the bottom inner side of the small furnace cover, and a liquid riser is installed in the perforation. One end of the liquid riser is located outside the small furnace cover, and the other end extends into the graphite crucible.

[0010] Preferably, the inner bottom surface of the small furnace cover is provided with an installation hole, which is located between the aluminum inlet liner and the liquid riser. A vertical slag baffle is installed in the installation hole, and an auxiliary fixing plate is provided on the outside of the installation hole.

[0011] Preferably, the slag-blocking plate extends into the interior of the graphite crucible, and the lower end of the slag-blocking plate does not contact the bottom surface of the interior of the graphite crucible. The lower end of the slag-blocking plate is positioned lower than the lower end of the riser pipe.

[0012] Preferably, a graduated sleeve is provided on the outer side of the upper end of the riser pipe, the graduated sleeve is fitted on the upper end of the riser pipe, and the lower end of the graduated sleeve is fixedly connected to the upper surface of the small furnace cover.

[0013] (III) Beneficial Effects

[0014] By adopting the above technical solution, this utility model has the following advantages compared with the prior art: This utility model provides a low-pressure casting crucible holding furnace that facilitates aluminum addition. The crucible furnace has an opening in the small furnace lid and is fitted with a silicon carbide aluminum-adding liner. Molten aluminum is added into the holding furnace through the aluminum-adding liner, which is convenient and quick. Simultaneously, a silicon carbide baffle plate is installed inside the crucible to divide the internal volume into two parts, blocking impurities and surface oxides in the molten aluminum. When there is a large amount of slag and oxides in the crucible, it can be cleaned by periodically opening the small furnace lid. This structure is more convenient and faster than the current conventional method of adding molten aluminum. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the present invention;

[0016] In the diagram: 1. Insulating pot body, 2. Graphite crucible, 3. Insulating furnace lid, 4. Small furnace lid, 5. Aluminum inlet liner, 6. Aluminum inlet cover, 7. Cover locking block, 8. Mounting hole, 9. Slag baffle plate, 10. Auxiliary fixing plate, 11. Liquid liter pipe, 12. Scale sleeve. Detailed Implementation

[0017] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0018] This utility model provides a low-pressure casting crucible holding furnace that facilitates aluminum addition, such as... Figure 1 As shown, the device includes a heat-insulating pot body 1, a graphite crucible 2 inside the heat-insulating pot body 1, a heat-insulating furnace cover 3 at the upper end of the heat-insulating pot body 1, a small furnace cover 4 on the heat-insulating furnace cover 3, an opening on the small furnace cover 4, an aluminum-filling liner 5 installed in the opening, an aluminum-filling liner 6 hinged to the outer top surface of the small furnace cover 4, the aluminum-filling liner 6 is installed on one side of the opening, and a liner locking block 7 is provided on the other side of the opening for locking the aluminum-filling liner 6. It should be noted that a small furnace cover locking block is provided on the other side for locking the small furnace cover.

[0019] Reference Appendix Figure 1A perforation is provided at the center of the inner bottom surface of the small furnace cover 4, through which a riser pipe 11 is installed. One end of the riser pipe 11 is located on the outside of the small furnace cover 4, and the other end extends into the graphite crucible 2. An installation hole 8 is provided on the inner bottom surface of the small furnace cover 4, located between the aluminum inlet liner 5 and the riser pipe 11. A vertical slag baffle 9 is installed in the installation hole 8, and an auxiliary fixing piece 10 is provided on the outside of the installation hole 8. The slag baffle 9 extends into the graphite crucible 2, but its lower end does not contact the bottom surface of the graphite crucible 2, and its lower end is lower than the lower end of the riser pipe 11. The slag baffle 9 is made of silicon carbide and divides the internal volume of the crucible into two parts, blocking impurities and surface oxides in the molten aluminum. When there is a large amount of slag and oxides in the crucible, it can be cleaned by periodically opening the small furnace cover.

[0020] It should be noted that a graduated sleeve 12 is provided on the outer side of the upper end of the riser pipe 11. The graduated sleeve 12 is fitted on the upper end of the riser pipe 11, and the lower end of the graduated sleeve 12 is fixedly connected to the upper surface of the small furnace cover.

[0021] This invention relates to a low-pressure casting crucible holding furnace for easy aluminum addition. The furnace has an opening in the small furnace lid, through which a silicon carbide aluminum-adding liner is installed. Molten aluminum is added to the holding furnace via this liner, making the process convenient and quick. Simultaneously, a silicon carbide baffle plate inside the crucible divides the internal volume into two parts, blocking impurities and surface oxides from the molten aluminum. When there is a large amount of slag and oxides in the crucible, it can be cleaned by periodically opening the small furnace lid. This structure is more convenient and faster than conventional methods of adding molten aluminum.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A low-pressure casting crucible holding furnace for easy aluminum addition, characterized in that: The device includes a heat-insulating pot body (1), a graphite crucible (2) inside the heat-insulating pot body (1), a heat-insulating furnace cover (3) at the upper end of the heat-insulating pot body (1), a small furnace cover (4) on the heat-insulating furnace cover (3), an opening on the small furnace cover (4), an aluminum-filled liner tube (5) installed in the opening, an aluminum-filled liner (6) hinged to the top surface of the outer side of the small furnace cover (4), the aluminum-filled liner (6) is installed on one side of the opening, and a liner locking block (7) is provided on the other side of the opening.

2. The low-pressure casting crucible holding furnace for easy aluminum addition according to claim 1, characterized in that: A perforation is provided at the center of the bottom surface of the inner side of the small furnace cover (4), and a liquid riser (11) is installed in the perforation. One end of the liquid riser (11) is located outside the small furnace cover (4), and the other end extends into the graphite crucible (2).

3. A low-pressure casting crucible holding furnace for easy aluminum addition according to claim 2, characterized in that: The inner bottom surface of the small furnace cover (4) is provided with an installation hole (8), which is located between the aluminum inlet liner (5) and the liquid riser (11). A vertical slag baffle (9) is installed in the installation hole (8), and an auxiliary fixing piece (10) is provided on the outside of the installation hole (8).

4. A low-pressure casting crucible holding furnace for easy aluminum addition according to claim 3, characterized in that: The slag baffle (9) extends into the graphite crucible (2), and the lower end of the slag baffle (9) does not contact the bottom surface of the graphite crucible (2). The lower end of the slag baffle (9) is lower than the lower end of the riser pipe (11).

5. A low-pressure casting crucible holding furnace for easy aluminum addition according to claim 2, characterized in that: The upper outer side of the riser tube (11) is provided with a graduated sleeve (12), which is sleeved on the upper end of the riser tube (11), and the lower end of the graduated sleeve (12) is fixedly connected to the upper surface of the small furnace cover.

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