Titanium casting air cooling mold

Abstract

The utility model relates to the technical field of casting molds, in particular to a titanium casting air cooling mold which comprises a mold body, a riser and an exhaust hole are formed in the top of the mold body, a cavity used for part forming is formed in the middle of the mold body, a liquid lifting opening is formed in the bottom of the mold body, and the liquid lifting opening, the riser and the exhaust hole all communicate with the cavity. The mold body is provided with a plurality of mutually independent heat exchange areas, the plurality of heat exchange areas are distributed on the outer side of the mold body cavity, and at least one heat exchange channel for gas circulation is arranged in each heat exchange area. According to the embodiment of the invention, the mold body is subjected to partitioned heat exchange cooling, so that forced cooling and partitioned cooling control on the mold body is realized, and the molding effect of an internal casting is also improved on the basis of improving the cooling efficiency.

Description

Technical Field

[0001] The present application relates to the technical field of casting molds, and in particular to an air-cooled titanium casting mold. Background Art

[0002] The casting of titanium or titanium alloys depends on the mold. The mold needs to be preheated before the titanium liquid enters the mold cavity. After the casting is completed, the mold needs to be cooled. In the existing technology, the cooling of the mold mostly relies on the heat exchange between the outer wall of the mold and the external air. The heat exchange cooling efficiency is low, and when it is necessary to cool the casting in the mold cavity in a zoned manner, the mold in the existing technology is difficult to meet the requirements. Utility Model Content

[0003] In response to the shortcomings of the existing technology, the present application provides a titanium casting air-cooled mold. The embodiment of the present application realizes forced cooling and zoned cooling control of the mold body by performing zoned heat exchange cooling on the mold body, thereby improving the molding effect of the internal casting on the basis of improving the cooling efficiency.

[0004] The above-mentioned application objectives of this application are achieved through the following technical solutions:

[0005] A titanium casting air-cooled mold comprises a mold body, wherein the top of the mold body is provided with a riser and an exhaust hole, the middle of the mold body is provided with a cavity for forming a part, and the bottom of the mold body is provided with a liquid riser, wherein the liquid riser, the riser and the exhaust hole are all connected to the cavity;

[0006] The mold body has several independent heat exchange areas, and several heat exchange areas are distributed outside the mold body cavity. Each heat exchange area has at least one heat exchange channel for gas circulation. The heat exchange channel runs through the mold body. The openings at both ends of the heat exchange channel are located on the outer surface of the mold body. The internal space of each heat exchange channel is not connected to the liquid riser, riser and exhaust hole.

[0007] Optionally, the central axis of the heat exchange channel is a straight line.

[0008] Optionally, central axes of the plurality of heat exchange channels are parallel to each other.

[0009] Optionally, a temperature sensor is also provided on the mold body, and a baffle for blocking the liquid rising port and an ejection mechanism for driving the movement of the baffle are provided at the bottom of the mold body. The temperature sensor is arranged outside one of the exhaust holes in the mold body, and the temperature sensor is connected to the ejection mechanism signal.

[0010] Optionally, the ejection mechanism includes an electric-controlled ejector, an ejector rod is movably connected to the electric-controlled ejector, and one end of the ejector rod away from the electric-controlled ejector is fixedly connected to the baffle.

[0011] In summary, the application has the following beneficial technical effects:

[0012] The embodiment of the application realizes forced cooling and partition cooling control of the mold body by partition heat exchange cooling of the mold body, improves the cooling efficiency, and improves the forming effect of the internal casting. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a front view of an embodiment of the application;

[0014] Figure 2 is a cross-sectional view of an embodiment of the application.

[0015] Reference signs: 10, mold body; 11, riser; 12, exhaust hole; 13, cavity; 14, liquid inlet; 20, heat exchange zone; 21, heat exchange channel;

[0016] 30, temperature sensor;

[0017] 40, ejection mechanism; 41, electric control ejection machine; 42, ejection rod; 43, baffle. DETAILED DESCRIPTION

[0018] The following will be further described in combination with the accompanying Figure 1 and the accompanying Figure 2 The application will be further described in detail.

[0019] The embodiment of the application provides a titanium casting air-cooled mold, which comprises a mold body 10, the top of the mold body 10 is provided with a riser 11 and an exhaust hole 12, the middle of the mold body 10 is provided with a cavity 13 for part forming, and the bottom of the mold body 10 is provided with a liquid inlet 14; the liquid inlet 14, the riser 11 and the exhaust hole 12 are all in communication with the cavity 13.

[0020] The mold body 10 is provided with a plurality of independent heat exchange zones 20, the plurality of heat exchange zones 20 are distributed outside the cavity 13 of the mold body 10, the heat exchange zone 20 comprises part of the wall of the mold body 10, each heat exchange zone 20 is provided with at least one heat exchange channel 21 for gas circulation, the heat exchange channel 21 penetrates through the mold body 10, the two ends of the heat exchange channel 21 are both open on the outer side of the mold body 10, and the internal space of each heat exchange channel 21 is not in communication with the cavity 13, the liquid inlet 14, the riser 11 and the exhaust hole 12.

[0021] The following will be further described in combination with specific use scenarios.

[0022] In use, the operator pours liquid titanium into the mold body 10 by vacuum casting method, and then closes the riser 14 for cooling. During pouring, the liquid titanium does not contact the gas in the heat exchange channels 21 because the internal space of each heat exchange channel 21 is not communicated with the cavity 13, the riser 14, the riser 11 and the vent hole 12.

[0023] After pouring is completed, the mold is cooled, and the operator can introduce flowing gas into the heat exchange channels 21 in the heat exchange zones 20, so that the gas exchanges heat with the inner wall of the heat exchange channels 21, and part of the heat is taken away to achieve overall cooling of the mold. In the embodiment, the heat exchange zone 20 should be considered to include the heat exchange channels 21 and part of the mold body 10 outside the heat exchange channels 21. The heat generated by the parts in the cavity 13 of the mold body 10 enters the heat exchange zone 20 through the mold body 10.

[0024] The cooling efficiency of the mold body 10 in the embodiment is higher than that of the passive cooling method in the prior art because the cooling of the mold body 10 in the embodiment is achieved by the stable flowing gas in the heat exchange channels 21.

[0025] It can be found that because the heat exchange channels 21 in the heat exchange zones 20 are independent of each other, the operator can control the air volume and air speed entering each heat exchange channel 21 to achieve the effect that different regions of the mold body 10 have different cooling rates, thereby achieving the purpose of partition cooling of the internal casting of the mold body 10, and significantly improving the forming effect of the internal casting.

[0026] In summary, the embodiment achieves forced cooling and partition cooling control of the mold body 10 by partition heat exchange cooling of the mold body 10, which improves the cooling efficiency and the forming effect of the internal casting.

[0027] The heat exchange channels 21 are essentially flow channels of the cooling medium, which can be gas or liquid. In the embodiment, the openings of the heat exchange channels 21 are located on the outer surface of the mold body 10, so that the cooled cooling medium has a directional inflow and outflow direction. The operator can recycle the outflowing cooling medium to achieve waste heat recovery. In the embodiment, the central axis of the heat exchange channels 21 is a straight line, and the central axes of the heat exchange channels 21 are parallel to each other, which facilitates machining, facilitates the inflow and outflow of the cooling medium, and facilitates recycling of the cooling medium by the operator.

[0028] In a feasible specific implementation method of the embodiment of the present application, a temperature sensor 30 is also provided on the mold body 10, and a baffle 43 for sealing the liquid rising port 14 and an ejection mechanism 40 for driving the movement of the baffle 43 are provided at the bottom of the mold body 10. The temperature sensor 30 is arranged on the outside of one of the exhaust holes 12 of the mold body 10, and the temperature sensor 30 is connected to the ejection mechanism 40 by signal. After the titanium liquid at the bottom enters the mold cavity 13 of the mold body 10 through the liquid rising port 14, the temperature sensor 30 monitors the liquid level in the mold cavity 13 by detecting the temperature of the exhaust hole 12. When the liquid level in the mold cavity 13 reaches a predetermined height, the ejection mechanism 40 receives the signal from the temperature sensor 30 to control the baffle 43 to seal the liquid rising port 14, and there is no need for the operator to manually seal the liquid rising port 14.

[0029] After the ejection mechanism 40 controls the baffle 43 to block the liquid rising port 14, the ejection mechanism 40 outputs a signal to the outside, causing the mold body 10 to quickly enter the cooling step, thereby improving the reaction time between the steps of the casting process, thereby improving the cooling efficiency of the mold body 10 as a whole.

[0030] Among them, the ejection mechanism 40 may include an electric ejector 41, an ejector rod 42 is movably connected to the electric ejector 41, and the end of the ejector rod 42 away from the electric ejector 41 is fixedly connected to the baffle 43. The electric ejector 41 is connected to the temperature sensor 30 signal. When the liquid level inside the cavity 13 reaches a specified height, the electric ejector 41 obtains the signal of the temperature sensor 30, so that the ejector rod 42 controls the baffle 43 to block the liquid rising port 14.

[0031] The embodiments of this specific implementation method are all preferred embodiments of the present application and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.

Claims

1. A titanium casting air-cooled mold, characterized in that: The mold body (10) comprises a mold body (10), wherein the top of the mold body (10) has a riser (11) and an exhaust hole (12), the middle of the mold body (10) has a cavity (13) for forming a part, and the bottom of the mold body (10) has a liquid riser (14), and the liquid riser (14), the riser (11) and the exhaust hole (12) are all connected to the cavity (13); The mold body (10) has a plurality of mutually independent heat exchange areas (20), and the plurality of heat exchange areas (20) are distributed outside the mold cavity (13) of the mold body (10). Each heat exchange area (20) has at least one heat exchange channel (21) for gas circulation, and the heat exchange channel (21) passes through the mold body (10). Both end openings of the heat exchange channel (21) are located on the outer surface of the mold body (10), and the internal space of each heat exchange channel (21) is not connected to the liquid riser (14), the riser (11) and the exhaust hole (12).

2. The titanium casting air-cooled mold according to claim 1, characterized in that: The central axis of the heat exchange channel (21) is a straight line.

3. The titanium casting air-cooled mold according to claim 2, characterized in that: The central axes of the plurality of heat exchange channels (21) are parallel to each other.

4. The titanium casting air-cooled mold according to claim 1, characterized in that: A temperature sensor (30) is also provided on the mold body (10). A baffle (43) for blocking the liquid lifting port (14) and an ejection mechanism (40) for driving the baffle (43) to move are provided at the bottom of the mold body (10). The temperature sensor (30) is provided outside one of the exhaust holes (12) of the mold body (10). The temperature sensor (30) is connected to the ejection mechanism (40) for signal transmission.

5. The titanium casting air-cooled mold according to claim 4, characterized in that: The ejection mechanism (40) includes an electric ejector (41), an ejector rod (42) movably connected to the electric ejector (41), and an end of the ejector rod (42) away from the electric ejector (41) is fixedly connected to a baffle (43).

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