阅读说明：本技术 一种真空凝壳炉离心浇注工装和钛合金离心浇注工艺 (centrifugal casting tool and titanium alloy centrifugal casting process for vacuum skull furnace ) 是由 杨黄政 于 2019-10-18 设计创作，主要内容包括：本发明提供一种真空凝壳炉离心浇注工装和钛合金离心浇注工艺,真空凝壳炉离心浇注工装包括上模、下模、主浇管和三个浇口杯,上模、下模均为上下两端中空状,上模、下模四周侧面分别设置有安装槽A、安装槽B,主浇管与上模固定连接,上模与下模相互叠合在一起并且使安装槽A与安装槽B对接形成安装孔,安装孔以内焊接固定有浇口杯。钛合金离心浇注工艺包括使用真空凝壳炉离心浇注工装浇注熔炼为液态的钛合金金属液的步骤。采用本发明的技术方案,在钛合金离心浇注工艺过程中,使熔炼为液态的钛合金金属液由三个浇口杯分配送入至模壳型腔以内,3个浇口杯分配熔化后的金属液流量适中,瞒住了浇注工艺需求,为提高铸造质量奠定了基础。(The invention provides centrifugal casting tools of a vacuum skull furnace and a titanium alloy centrifugal casting process, wherein the centrifugal casting tools of the vacuum skull furnace comprise an upper die, a lower die, a main casting pipe and three casting cups, the upper die and the lower die are both hollow at the upper end and the lower end, the peripheral sides of the upper die and the lower die are respectively provided with an installation groove A and an installation groove B, the main casting pipe is fixedly connected with the upper die, the upper die and the lower die are mutually overlapped at and the installation groove A and the installation groove B are butted to form an installation hole, and the casting cups are fixedly welded in the installation hole.)

The centrifugal pouring tool for the vacuum skull furnace is characterized by comprising an upper die (1), a lower die (2), a main pouring pipe (3) and three pouring cups (4), wherein the upper end and the lower end of each of the upper die (1) and the lower die (2) are hollow, a mounting groove A is formed in the peripheral side face of the upper die (1), a mounting groove B is formed in the peripheral side face of the lower die (2), the end of the main pouring pipe (3) is fixedly connected with the upper die (1), the other end of the main pouring pipe (3) extends upwards along the vertical direction, the upper die (1) and the lower die (2) are mutually overlapped at , the mounting groove A is butted with the mounting groove B to form a mounting hole, the end of each pouring cup (4) is welded and fixed in the mounting hole, and the other end of each pouring cup (4) extends outwards.

2. The vacuum skull furnace centrifugal casting tool of claim 1, characterized in that: the outline of the overlooking projection of the upper die (1) or the lower die (2) is regular hexagon.

3. The vacuum skull furnace centrifugal casting tool of claim 1, characterized in that: the mounting grooves A are uniformly distributed on the peripheral side surfaces of the upper die (1) according to a circumferential array by taking the central axis of the upper die (1) in the vertical direction as a rotation center.

4. The vacuum skull furnace centrifugal casting tool of claim 1, characterized in that: the mounting grooves B are uniformly distributed on the peripheral side face of the lower die (2) according to a circumferential array by taking the central axis of the lower die (2) in the vertical direction as a rotation center.

5. The vacuum skull furnace centrifugal casting tool of claim 1, characterized in that: the outline of the mounting hole is round.

6. The vacuum skull furnace centrifugal casting tool of claim 1, characterized in that: still fixedly connected with tray (5) on lower mould (2), tray (5) border is provided with fixed orifices (51).

7. The vacuum skull furnace centrifugal casting tool of claim 1, characterized in that: the main pouring pipe (3) is in a shape of a truncated cone.

8. The vacuum skull furnace centrifugal casting tool of claim 1, characterized in that: the upper die (1) or the lower die (2) is made of alloy structural steel.

9, titanium alloy centrifugal casting process, which is characterized by comprising the following steps:

in the process of titanium alloy centrifugal casting, the vacuum skull furnace centrifugal casting tool as claimed in any of claims 1-8 is used, so that molten titanium alloy metal which is melted into liquid state is fed into a mould shell cavity from the main pouring pipe (3) when a crucible is turned over, and then is respectively fed into the mould shell cavity from three pouring cups (4).

Technical Field

The invention relates to the technical field of casting processes, in particular to a centrifugal casting tool and a centrifugal casting process for titanium alloy of vacuum skull furnaces.

Background

In the process of a titanium alloy investment casting process, a vacuum skull furnace is adopted for centrifugal casting production in , molten metal can stably enter a mould shell cavity when a crucible is turned over, and a qualified casting can be cast.

Disclosure of Invention

In order to solve the technical problems, the invention provides centrifugal casting tools of a vacuum skull furnace and a titanium alloy centrifugal casting process.

The invention is realized by the following technical scheme.

The invention provides a vacuum skull furnace centrifugal casting tool which comprises an upper die, a lower die, a main pouring pipe and three pouring cups, wherein the upper die and the lower die are both hollow, the upper end and the lower end of each of the upper die and the lower die are hollow, a mounting groove A is formed in the peripheral side surface of the upper die, a mounting groove B is formed in the peripheral side surface of the lower die, the end of the main pouring pipe is fixedly connected with the upper die, the other end of the main pouring pipe extends upwards along the vertical direction, the upper die and the lower die are mutually overlapped at , the mounting groove A is in butt joint with the mounting groove B to form a mounting hole, the end of each pouring cup is welded and fixed in the mounting hole, and the other end.

The outline of the overlooking projection of the upper die or the lower die is a regular hexagon.

The mounting grooves A are uniformly distributed on the peripheral side surfaces of the upper die according to a circumferential array by taking the central axis of the upper die in the vertical direction as a rotation center.

The mounting grooves B are uniformly arranged on the peripheral side surfaces of the lower die according to a circumferential array by taking the central axis of the lower die in the vertical direction as a rotation center.

The outline of the mounting hole is round.

Still fixedly connected with tray on the lower mould, the tray border is provided with the fixed orifices.

The main casting pipe is in a cone frustum shape.

The upper die or the lower die is made of alloy structural steel.

In addition, the invention also provides an titanium alloy centrifugal casting process, which comprises the following steps:

in the process of the titanium alloy centrifugal casting process, the vacuum skull furnace centrifugal casting tool is used, so that molten titanium alloy metal liquid which is smelted into liquid state is fed from the main pouring pipe when the crucible is turned over, and then is respectively fed into a mould shell cavity from the three pouring cups.

The invention has the beneficial effects that: by adopting the technical scheme of the invention, 3 pouring cups are arranged on the centrifugal pouring tool of the vacuum skull melting furnace, in the process of the titanium alloy centrifugal pouring process, when the crucible is turned over, molten titanium alloy metal liquid which is melted into liquid state is fed by the main pouring pipe and then is respectively fed into the die cavity of the die shell by the three pouring cups, when the appearance specification of the vacuum skull melting furnace is kept constant, the corresponding tool does not need to be manufactured again, the flow of the molten metal which is distributed and melted by the 3 pouring cups is moderate, the requirement of the pouring process is hidden, and the foundation is laid for improving the casting quality.

Drawings

FIG. 1 is a front view of a centrifugal casting tool of a vacuum skull furnace of the invention;

FIG. 2 is a top view of the centrifugal casting tool of the vacuum skull furnace of the invention.

In the figure: 1-upper die, 2-lower die, 3-main pouring pipe, 4-pouring cup, 5-tray and 51-fixing hole.

Detailed Description

The following illustrates the present invention, but the scope of the claims is not limited thereto.

As shown in fig. 1 and 2, the invention provides centrifugal casting tools for vacuum skull furnaces, which comprise an upper die 1, a lower die 2, a main pouring pipe 3 and three pouring cups 4, wherein the upper and lower ends of the upper die 1 and the lower die 2 are both hollow, an installation groove a is arranged on the peripheral side surface of the upper die 1, an installation groove B is arranged on the peripheral side surface of the lower die 2, the end of the main pouring pipe 3 is fixedly connected with the upper die 1, the other end of the main pouring pipe 3 extends upwards along the vertical direction, the upper die 1 and the lower die 2 are mutually overlapped at , the installation groove a is in butt joint with the installation groove B to form an installation hole, the end of the pouring cup 4 is welded and fixed in the installation hole, and the other end of the pouring.

, preferably, the outline of the top projection of the upper die 1 or the lower die 2 is regular hexagon, the mounting grooves A are uniformly arranged on the peripheral side surface of the upper die 1 according to a circumferential array by taking the central axis of the upper die 1 in the vertical direction as the rotation center, the mounting grooves B are uniformly arranged on the peripheral side surface of the lower die 2 according to a circumferential array by taking the central axis of the lower die 2 in the vertical direction as the rotation center, and the outline of the mounting holes is circular.

In addition, a tray 5 is fixedly connected to the lower die 2, and a fixing hole 51 is formed in the edge of the tray 5. The main casting pipe 3 is in a truncated cone shape. The upper die 1 or the lower die 2 is made of alloy structural steel.

In addition, the invention also provides an titanium alloy centrifugal casting process, which comprises the following steps:

in the process of titanium alloy centrifugal casting technology, a vacuum skull furnace centrifugal casting tool according to any of claims 1-8 is used, so that molten titanium alloy metal liquid which is melted into liquid state is fed in from a main pouring pipe 3 when a crucible is turned over, and then is respectively fed into a mould shell cavity from three pouring cups 4.

By adopting the technical scheme of the invention, 3 pouring cups are arranged on the centrifugal pouring tool of the vacuum skull melting furnace, in the process of the titanium alloy centrifugal pouring process, when the crucible is turned over, molten titanium alloy metal liquid which is melted into liquid state is fed through the main pouring pipe and then is respectively fed into the die cavity of the die shell through the three pouring cups, when the appearance specification of the vacuum skull melting furnace is kept constant, the corresponding tool does not need to be manufactured again, the molten metal flow distributed by the 3 pouring cups is moderate, the pouring process requirement is hidden, and the foundation is laid for improving the casting quality.