CN211331272U

CN211331272U - Cavity heat conduction heat-resistant mold

Info

Publication number: CN211331272U
Application number: CN201921891291.2U
Authority: CN
Inventors: 黄毅
Original assignee: Beijing Zhongzhu Tongfang Technology Co ltd
Current assignee: Chongqing Bore Intelligent Technology Co ltd
Priority date: 2019-11-05
Filing date: 2019-11-05
Publication date: 2020-08-25
Anticipated expiration: 2029-11-05

Abstract

The utility model discloses a cavity conduction heat-type high temperature resistant mould, including the mould template, be equipped with heat exchange system on the mould template, heat exchange system comprises heat conduction passageway and the cooling body that is located on the mould template, the heat conduction passageway is cellular arranging on the mould type is pulled, just interconnection intercommunication between the heat conduction passageway, cooling body inserts mould template top through the heat-conducting plate to one side. The beneficial effects of the utility model are that the utility model discloses utilize the vacuum heat transfer and conduction chamber to carry out the heat to the template and dredge the setting, utilize the external design of circulating water tank, can effectively improve the heat exchange area with water, improve the temperature control effect.

Description

Cavity heat conduction heat-resistant mold

Technical Field

The utility model relates to a mould manufacturing technology field, especially a cavity conduction heat type high temperature resistant mould.

Background

A casting mold is needed in the production process of the steel ball or other steel castings, and the traditional casting method generally adopts sand mold casting, namely, a sand mold is needed to be firstly cast during casting; when sanding, the mold is moved for a plurality of times, the utilization rate of molten steel is low, the finish degree of finished products is low, the shakeout phenomenon is serious, the pouring time is long, and the pollution problem also exists.

To solve these problems, sand-free casting molds are mostly used at present. However, the existing casting mold generally comprises a left mold plate and a right mold plate, wherein a cavity and a pouring gate are arranged in the middle of the two mold plates, and the two mold plates are closed during pouring, namely, the left mold plate and the right mold plate are closed, and pouring is completed through the pouring gate.

For example, patent document CN103121085A discloses a steel ball casting mold, which comprises two half molds, wherein the parting surfaces of the two half molds are correspondingly provided with a plurality of semicircular ball grooves from top to bottom, and when the two half molds are closed, the two semicircular ball grooves form a complete spherical cavity; the upper spherical cavity and the lower spherical cavity are communicated by an ingate; a sprue is arranged on one side of the spherical cavity, and the sprue is connected with the spherical cavity through a cross gate; the gas outlet of the gas tank and the pouring gate of the pouring gate are arranged at the top of the die. The scheme is the casting mold which is commonly adopted at present, and although the mold has the advantages of simple structure, easy processing and the like, the mold has the following defects:

when taking out the finished product after the casting is accomplished, because bond between finished product and the die cavity is tighter, often need adopt dedicated drawing of patterns instrument just can accomplish, and generally mostly manual operation, artificial intensity of labour is very big, the cost is also very high and cooling efficiency is not high, and product shaping quality is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem, a cavity heat conduction heat-resistant die is designed.

Realize above-mentioned purpose the technical scheme of the utility model be, a cavity conduction heat-type high temperature resistant mould, including the mould template, be equipped with heat exchange system on the mould template, heat exchange system comprises heat conduction passageway and the cooling body that is located on the mould template, the heat conduction passageway is cellular arranging on the mould template, just interconnection intercommunication between the heat conduction passageway, cooling body inserts in mould template top to one side through the heat-conducting plate.

Two the mould template compound die forms one set of complete mould, the mould template outside is equipped with the supported hole, supported hole evenly distributed is regional at mould template center, supported hole bottom is equipped with the heat conduction passageway, the heat conduction passageway run through the mould template and with the supported hole is linked together, the mould top is equipped with the sprue gate, the inside die cavity that is equipped with of mould, the die cavity with the sprue gate is linked together.

The cooling mechanism is composed of a circulating water tank and a heat-conducting plate, and the heat-conducting plate is arranged inside the circulating water tank.

The die is characterized in that push rod holes are formed in the positions of four corners of the die template and penetrate through the die template.

The heat conduction plate is characterized in that a heat conduction pipeline connecting hole is formed in the surface of the heat conduction plate, a heat transfer and conduction cavity is formed in the middle interlayer of the heat conduction plate, and the heat conduction pipeline connecting hole is communicated with the heat transfer and conduction cavity.

The heat transfer and conduction cavity is communicated with a heat conduction channel on the mould template.

And the support holes on the mould template are connected with the outside through heat conducting branch pipes.

The cavity heat conduction type high temperature resistant die manufactured by the technical proposal of the utility model is researched and analyzed to find that the tight bonding is caused by the poor heat dispersion of the template of the die, especially when casting at high temperature, such as when casting molten steel, the temperature of the contact surface of the template and the molten steel is too high, and the bonding with the product can be generated when the molten steel is formed, the utility model utilizes the vacuum heat conduction cavity to conduct heat to the template, utilizes the external design of the circulating water tank to effectively improve the heat exchange area with water and improve the temperature control effect, and utilizes the high heat conductivity of the vacuum heat conduction medium to effectively control the whole thickness of the die, compared with the built-in waterway type die, the whole processing cost and the thickness are effectively controlled, and simultaneously, under high temperature, especially when die assembling and forming, the phase change of the vacuum heat conduction medium in the heat conduction cavity under high temperature presents higher pressure, the pressure difference between the inner side and the outer side of the template is reduced, the strength and the deformation possibility of the template are reduced, and the molding quality of a product is improved.

Drawings

Fig. 1 is a schematic structural view of a cavity heat conduction heat-resistant mold according to the present invention;

fig. 2 is a schematic structural view of a mold plate of a cavity heat conduction heat-resistant mold according to the present invention;

fig. 3 is a front view of a cavity heat conduction heat-resistant mold according to the present invention;

FIG. 4 is a graph of the interfacial heat transfer coefficient as a function of temperature of the plate material under different pressure conditions in accordance with the present invention;

in the figure, 1, a mould template; 2. a heat conducting channel; 3. a cooling mechanism; 4. a heat conducting plate; 5. a mold; 6. a pouring gate; 7. a support hole; 8. a heat conducting channel; 9. a cavity; 10. a circulating water tank; 11. a push rod aperture; 12. a heat conducting pipe support hole; 13. a heat transfer and conduction cavity.

Detailed Description

It is right to combine the attached drawing below to describe the utility model discloses specifically, as shown in fig. 2, a cavity conduction heat type high temperature resistant mould, including mould template 1, be equipped with heat exchange system on the mould template 1, heat exchange system comprises heat conduction passageway 2 and cooling body 3 that are located on mould template 1, heat conduction passageway 2 is cellular arranging on mould template 1, just interconnection intercommunication between heat conduction passageway 2, cooling body 3 inserts in mould template 1 top to one side through heat-conducting plate 4. Two 1 compound dies of mould template form one set of complete mould 5, the 1 outside of mould template is equipped with supported hole 7, supported hole 7 evenly distributed is regional at 1 central point of mould template, the 7 bottom of supported hole is equipped with heat conduction passageway 2, heat conduction passageway 2 run through mould template 1 and with supported hole 7 is linked together, 5 tops of mould are equipped with sprue gate 6, the inside die cavity 8 that is equipped with of mould 5, die cavity 8 with sprue gate 6 is linked together. In this embodiment, the enclosed space is a vacuum cavity, and a vacuum heat-conducting medium is disposed in the enclosed space, that is, no other air exists except the vacuum heat-conducting medium to improve the heat-conducting efficiency, the vacuum heat-conducting medium may be the medium of the existing vacuum heat pipe, or liquid nitrogen or a liquid nitrogen mixture, etc., and the heat of the template is rapidly transferred to the circulating water tank by utilizing the vacuum environment and the phase change thereof along with the temperature, so as to control the temperature of the template.

As shown in fig. 3, the cooling mechanism 3 is composed of a circulation tank 9 and a heat transfer plate 4, and the heat transfer plate 4 is disposed inside the circulation tank 9. The die is characterized in that push rod holes 10 are formed in the positions of four corners of the die template 1, and the push rod holes 10 penetrate through the die template 1. In this embodiment, the circulating water tank is fixedly connected with the heat conducting plate or the bearing plate or the shaping plate to realize the follow-up, and the die on the fixed side can also be fixedly installed in a manner of being fixedly connected with the outer auxiliary support. The effective heat conduction sectional area of the heat conduction channel is not smaller than that of the heat conduction cavity in order to meet the heat conduction performance, and meanwhile, in order to improve the heat exchange effect in the circulating water tank, at least the part of the heat conduction plate, which is smaller than the inside of the circulating water tank, can adopt design modes such as fins or coil pipes to increase the heat exchange area.

As shown in fig. 1, the surface of the heat conducting plate 4 is provided with a heat conducting pipeline connecting hole 11, a heat conducting cavity 12 is arranged at the middle interlayer position of the heat conducting plate 4, and the heat conducting pipeline connecting hole 11 is communicated with the heat conducting cavity 12. The heat transfer and conduction cavity 12 is communicated with a heat conduction channel on the mould template 1. And the support holes on the mould template 1 are connected with the outside through heat conducting branch pipes. In this embodiment, the heat generated by pouring according to different cavities is different, so that the quantity of the heat-conducting branch pipes connected with the supporting holes on the mould template is changed accordingly, the heat is more greatly connected, the heat is less connected, and meanwhile, the connected heat-conducting branch pipes play a certain supporting role on the mould template.

The utility model discloses research and analysis finds that the bonding is tighter because the heat dispersion of the template of mould leads to poorly, especially when high temperature casting, if during molten steel casting, template and molten steel contact surface temperature are too high, can appear the condition that bonds with the product when molten steel shaping, the utility model discloses utilize the heat transfer heat conduction chamber of vacuum to carry out the setting of leading of heat ultrafast to the template, utilize the external design of circulating water tank, can effectively improve the heat exchange area with water, improve the temperature control effect, moreover, utilize the high thermal conductivity of vacuum heat-conducting medium, can effectively control the whole thickness of mould, compare in built-in water route formula mould, whole processing cost and thickness obtain effective control. The inside heat conduction channel that is honeycomb intercommunication each other of mould has increased the heat radiating area of mould, and after the mould temperature rose certain degree, the heat-conducting medium in the heat conduction channel took place the phase transition, and the heat-conducting medium becomes the gaseous state by liquid state, and the material can take place to expand during the conversion and make the mould press more tightly about, and the contact condition is also better. As shown in fig. 4, the interfacial heat transfer coefficient varies with the temperature of the plate material under different pressure conditions. Due to the increased pressure, the mobility of the substance in the gap is increased, which also leads to an increased heat transfer capacity. Improve the shaping quality of product, adopt the utility model discloses a mould, adaptable molten steel 1400 degrees centigrade-1700 degrees centigrade's high temperature improves the range of application, when carrying out high temperature casting or die-casting, need not to carry out coating or set up the sanding on the mould surface, and the mould that effectively avoids high temperature to lead to melts the condition emergence of adhesion even.

Above-mentioned technical scheme has only embodied the utility model discloses technical scheme's preferred technical scheme, some changes that this technical field's technical personnel probably made to some parts wherein have all embodied the utility model discloses a principle belongs to within the protection scope of the utility model.

Claims

1. The utility model provides a cavity conduction heat-type high temperature resistant mould, includes mould template (1), its characterized in that, be equipped with heat exchange system on mould template (1), heat exchange system comprises heat conduction passageway (2) and cooling body (3) that are located on mould template (1), heat conduction passageway (2) are cellular in mould template (1) and arrange, just interconnection intercommunication between heat conduction passageway (2), cooling body (3) insert in mould template (1) top through heat-conducting plate (4) to one side.

2. The cavity heat conduction heat-resistant high-temperature-resistant mold as claimed in claim 1, wherein two mold plates (1) are combined to form a complete mold (5), support holes (7) are formed in the outer sides of the mold plates (1), the support holes (7) are uniformly distributed in the central area of the mold plates (1), heat conduction channels (2) are formed in the bottoms of the support holes (7), the heat conduction channels (2) penetrate through the mold plates (1) and are communicated with the support holes (7), a pouring gate (6) is formed in the top end of the mold (5), a cavity (8) is formed in the mold (5), and the cavity (8) is communicated with the pouring gate (6).

3. A cavity heat-conducting high-temperature-resistant mold according to claim 1, wherein the cooling mechanism (3) is composed of a circulating water tank (9) and a heat-conducting plate (4), and the heat-conducting plate (4) is disposed inside the circulating water tank (9).

4. A cavity heat-conducting high-temperature-resistant mold according to claim 1, characterized in that push rod holes (10) are provided at the four corners of the mold template (1), and the push rod holes (10) penetrate through the mold template (1).

5. The cavity heat-conducting high-temperature-resistant mold according to claim 1, wherein the heat-conducting plate (4) is provided with heat-conducting pipe connecting holes (11) on the surface, the heat-conducting plate (4) is provided with heat-conducting and heat-conducting cavities (12) at the intermediate layer position, and the heat-conducting pipe connecting holes (11) are communicated with the heat-conducting and heat-conducting cavities (12).

6. A cavity heat-conducting high-temperature-resistant mold according to claim 5, characterized in that the heat-conducting and heat-conducting cavity (12) is communicated with a heat-conducting channel on the mold template (1).

7. A cavity heat conduction high temperature resistant mold according to claim 1, wherein the support holes of the mold template (1) are connected with the outside through heat conduction branch pipes.