阅读说明：本技术 一种用于熔模铸造工艺的浇道装置及其制备方法 (Pouring channel device for investment casting process and preparation method thereof ) 是由 张宁 潘年锋 于 2020-05-15 设计创作，主要内容包括：本发明涉及一种用于熔模铸造工艺的浇道装置及其制备方法,浇道装置包括底浇道,底浇道上并列粘接有主浇道和直浇道,直浇道上还粘接有辅助浇道,辅助浇道和底浇道用于夹持蜡模件,直浇道上还粘接有内浇道,内浇道伸入蜡模件预设的空腔内,底浇道、主浇道、辅助浇道和内浇道均由蜡料制成,直浇道包括浇道内芯,浇道内芯外表面包覆有表面层,表面层是由蜡料制成。另外,本发明还提供了该浇道装置的制备方法的具体步骤。采用本发明的技术方案,通过设置浇道内芯、控制化蜡桶内的温度以及浇道内芯在化蜡桶内蜡料中的浸没次数,增强了直浇道的承载能力,使蜡模件能够通过直浇道受到稳定支承,防止熔模铸造工艺过程出现中断。(The invention relates to a pouring gate device for an investment casting process and a preparation method thereof, wherein the pouring gate device comprises a bottom pouring gate, a main pouring gate and a straight pouring gate are bonded on the bottom pouring gate in parallel, an auxiliary pouring gate is further bonded on the straight pouring gate, the auxiliary pouring gate and the bottom pouring gate are used for clamping a wax module, an inner pouring gate is further bonded on the straight pouring gate, the inner pouring gate extends into a preset cavity of the wax module, the bottom pouring gate, the main pouring gate, the auxiliary pouring gate and the inner pouring gate are all made of wax materials, the straight pouring gate comprises a pouring gate inner core, the outer surface of the pouring gate inner core is coated with a surface layer. In addition, the invention also provides the specific steps of the preparation method of the pouring gate device. By adopting the technical scheme of the invention, the bearing capacity of the sprue is enhanced by arranging the sprue inner core, controlling the temperature in the wax melting barrel and the immersion times of the sprue inner core in the wax material in the wax melting barrel, so that the wax mould can be stably supported through the sprue, and the interruption of the investment casting process is prevented.)

1. A runner device for an investment casting process, comprising: including end runner (1), it has main runner (2) and sprue (3) to bond side by side on end runner (1), still bond on sprue (3) has supplementary runner (4), supplementary runner (4) and end runner (1) are used for centre gripping wax module (5), it has ingate (6) to still bond on sprue (3), and ingate (6) stretch into the cavity that wax module (5) were predetermine, end runner (1), main runner (2), supplementary runner (4) and ingate (6) are made by the wax material, sprue (3) are including watering inner core (7), it has superficial layer (8) to water inner core (7) surface cladding, superficial layer (8) are made by the wax material.

2. A runner apparatus for an investment casting process as claimed in claim 1 wherein: the pouring gate inner core (7) is made of wood.

3. A runner apparatus for an investment casting process as claimed in claim 1 wherein: the pouring gate inner core (7) is in a cylinder shape with the outer diameter of 30mm to 50 mm.

4. A runner apparatus for an investment casting process as claimed in claim 1 wherein: the pouring gate device for the investment casting process further comprises an overlapping pouring gate, the overlapping pouring gate is made of wax materials, and two ends of the overlapping pouring gate are respectively bonded with the main pouring gate (2) and the straight pouring gate (3).

5. A preparation method of a pouring channel device for an investment casting process is characterized by comprising the following steps: the method comprises the following steps:

the wax melting barrel and the pouring gate inner core (7) are provided, wax materials are contained in the wax melting barrel, the pouring gate inner core (7) is immersed into the wax materials in the wax melting barrel and taken out for a plurality of times, the sprue (3) is prepared after the wax materials attached to the surface of the pouring gate inner core (7) are solidified, the bottom pouring gate (1), the main pouring gate (2), the auxiliary pouring gate (4) and the inner pouring gate (6) are made of the wax materials, the main pouring gate (2) and the sprue (3) are bonded on the bottom pouring gate (1) in parallel, the auxiliary pouring gate (4) and the inner pouring gate (6) are bonded on the direct pouring gate, and the pouring gate device for the investment casting process is prepared.

6. The method of making a runner apparatus for an investment casting process of claim 5, wherein: the pouring gate inner core (7) is immersed in the wax material in the wax melting barrel for at least more than 3 times.

7. The method of making a runner apparatus for an investment casting process of claim 5, wherein: when the pouring gate inner core (7) is immersed into the wax material in the wax melting barrel, the temperature in the wax melting barrel is controlled to be above 65 ℃.

8. The method of making a runner apparatus for an investment casting process of claim 5, wherein: the preparation method of the pouring channel device for the investment casting process further comprises the following steps:

before the pouring gate inner core (7) is immersed into the wax material in the wax melting barrel, removing all impurities on the surface of the pouring gate inner core (7).

9. The method of making a runner apparatus for an investment casting process of claim 5, wherein: the preparation method of the pouring channel device for the investment casting process further comprises the following steps:

when the bottom pouring gate (1), the main pouring gate (2), the auxiliary pouring gate (4), the inner pouring gate (6) and the straight pouring gate (3) are bonded, firstly, a hot knife made of a metal material is provided, then, the hot knife is heated to a proper temperature, then, wax materials at a position to be bonded are melted by the hot knife, so that the main pouring gate (2) and the straight pouring gate (3) are bonded on the bottom pouring gate (1) in parallel, and the auxiliary pouring gate (4) and the inner pouring gate (6) are bonded on the straight pouring gate.

Technical Field

The invention relates to the technical field of investment casting, in particular to a pouring gate device for an investment casting process and a preparation method thereof.

Background

In recent years, the manufacturing industry of mechanical equipment is rapidly developed, people design and manufacture various mechanical equipment to facilitate various activities of people such as production, life and the like, the mechanical equipment is composed of parts with different shapes, sizes and functions, the various mechanical parts generally need to be formed by different machining and manufacturing methods, casting and forming are important technological methods of the current mechanical manufacturing and processing, a mold is generally made of metal materials, casting raw materials are cast into the mold, along with the development of the technology, the requirement on the manufacturing precision of the mechanical parts is increasingly improved, a plurality of mechanical parts with complicated shapes can be formed by a casting process, higher requirements on the manufacturing precision and the shape profile precision of the corresponding parts on the used casting mold are provided, in the prior art, in the process of a investment casting process, the method comprises the steps of firstly preparing wax mould parts according to the shapes of products, then preparing corresponding pouring gate devices, connecting the wax mould parts with the pouring gate devices, and then pouring and smelting the wax mould parts into liquid alloy materials through the pouring gate devices to obtain castings.

Disclosure of Invention

In order to solve the technical problem, the invention provides a pouring gate device for an investment casting process and a preparation method thereof.

The invention provides a pouring gate device for an investment casting process, which comprises a bottom pouring gate, wherein a main pouring gate and a straight pouring gate are bonded on the bottom pouring gate in parallel, an auxiliary pouring gate is further bonded on the straight pouring gate, the auxiliary pouring gate and the bottom pouring gate are used for clamping a wax module, an inner pouring gate is further bonded on the straight pouring gate, the inner pouring gate extends into a preset cavity of the wax module, the bottom pouring gate, the main pouring gate, the auxiliary pouring gate and the inner pouring gate are all made of wax materials, the straight pouring gate comprises a pouring gate inner core, the outer surface of the pouring gate inner core is coated with a surface layer, and the surface layer is made of the wax materials.

The pouring gate inner core is made of wood.

The pouring gate inner core is in a cylinder shape with the outer diameter of 30mm to 50 mm.

The runner device for the investment casting process further comprises an overlapping runner which is made of wax materials, and two ends of the overlapping runner are respectively bonded with the main runner and the straight runner.

In addition, the invention also provides a preparation method of the pouring channel device for the investment casting process, which comprises the following steps:

the wax melting barrel and the pouring gate inner core are provided, wax materials are contained in the wax melting barrel, the pouring gate inner core is immersed into the wax materials in the wax melting barrel and taken out for a plurality of times, a sprue is prepared after the wax materials attached to the surface of the pouring gate inner core are solidified, a bottom pouring gate, a main pouring gate, an auxiliary pouring gate and an inner pouring gate are prepared by using the wax materials, the main pouring gate and the sprue are bonded on the bottom pouring gate in parallel, the auxiliary pouring gate and the inner pouring gate are bonded on a direct pouring gate, and a pouring gate device for the investment casting process is prepared.

The pouring gate inner core is immersed in the wax material in the wax melting barrel for at least more than 3 times.

When the inner core of the pouring gate is immersed into the wax material in the wax melting barrel, the temperature in the wax melting barrel is controlled to be above 65 ℃.

The preparation method of the pouring channel device for the investment casting process further comprises the following steps:

and before the pouring gate inner core is immersed into the wax material in the wax melting barrel, removing all impurities on the surface of the pouring gate inner core.

The preparation method of the pouring channel device for the investment casting process further comprises the following steps:

when the bottom pouring gate, the main pouring gate, the auxiliary pouring gate, the inner pouring gate and the straight pouring gate are bonded, firstly providing a hot knife made of a metal material, then heating the hot knife to a proper temperature, and then melting wax materials at a position to be bonded by using the hot knife to enable the main pouring gate and the straight pouring gate to be bonded on the bottom pouring gate in parallel, so that the auxiliary pouring gate and the inner pouring gate are bonded on the straight pouring gate.

The invention has the beneficial effects that: by adopting the technical scheme of the invention, the sprue inner core is embedded in the sprue and has better rigidity, the strength of the sprue can be enhanced, and the sprue plays a role in stably supporting the wax mould piece, so that the interruption of the investment casting process is prevented.

Drawings

FIG. 1 is a schematic structural view of a runner apparatus for an investment casting process of the present invention;

FIG. 2 is a schematic view of the sprue of the present invention.

In the figure: 1-bottom runner, 2-main runner, 3-straight runner, 4-auxiliary runner, 5-wax module, 6-inner runner, 7-inner runner core and 8-surface layer.

Detailed Description

The technical solution of the present invention is further explained with reference to the accompanying drawings, but the claimed protection scope is not limited thereto;

the invention provides a pouring gate device for an investment casting process and a preparation method thereof, as shown in figures 1 and 2, the pouring gate device comprises a bottom pouring gate 1, a main pouring gate 2 and a straight pouring gate 3 are adhered to the bottom pouring gate 1 in parallel, an auxiliary pouring gate 4 is also adhered to the straight pouring gate 3, the auxiliary pouring gate 4 and the bottom pouring gate 1 are used for clamping a wax module 5, an inner pouring gate 6 is also adhered to the straight pouring gate 3, the inner pouring gate 6 extends into a preset cavity of the wax module 5, the bottom pouring gate 1, the main pouring gate 2, the auxiliary pouring gate 4 and the inner pouring gate 6 are all made of wax, the straight pouring gate 3 comprises a pouring gate inner core 7, the outer surface of the pouring gate inner core 7 is coated with a surface layer 8, and the surface.

Further, the material of the runner core 7 is preferably wood. The sprue core 7 is a cylindrical shape having an outer diameter of 30mm to 50 mm. The pouring gate device for the investment casting process further comprises an overlapping pouring gate, the overlapping pouring gate is made of wax materials, and two ends of the overlapping pouring gate are respectively bonded with the main pouring gate 2 and the straight pouring gate 3.

In addition, the invention also provides a preparation method of the pouring channel device for the investment casting process, which comprises the following steps:

the wax melting barrel and the pouring gate inner core 7 are provided, wax materials are contained in the wax melting barrel, the pouring gate inner core 7 is immersed into the wax materials in the wax melting barrel and taken out for a plurality of times, the sprue 3 is prepared after the wax materials attached to the surface of the pouring gate inner core 7 are solidified, the bottom pouring gate 1, the main pouring gate 2, the auxiliary pouring gate 4 and the inner pouring gate 6 are made of the wax materials, the main pouring gate 2 and the sprue 3 are bonded on the bottom pouring gate 1 in parallel, the auxiliary pouring gate 4 and the inner pouring gate 6 are bonded on the direct pouring gate, and the pouring gate device for the investment casting process is prepared.

Further, the pouring gate inner core 7 is immersed in the wax material in the wax melting barrel for at least more than 3 times. When the pouring gate inner core 7 is immersed into the wax material in the wax melting barrel, the temperature in the wax melting barrel is controlled to be above 65 ℃.

In addition, the preparation method of the pouring channel device for the investment casting process further comprises the following steps:

before the pouring gate inner core 7 is immersed into the wax material in the wax melting barrel, all impurities on the surface of the pouring gate inner core 7 are removed.

In addition, the preparation method of the pouring channel device for the investment casting process further comprises the following steps:

when the bottom pouring gate 1, the main pouring gate 2, the auxiliary pouring gate 4, the inner pouring gate 6 and the straight pouring gate 3 are bonded, a hot knife made of a metal material is provided firstly, then the hot knife is heated to a proper temperature, and then wax materials at a position to be bonded are melted by using the hot knife to enable the main pouring gate 2 and the straight pouring gate 3 to be bonded on the bottom pouring gate 1 in parallel, so that the auxiliary pouring gate 4 and the inner pouring gate 6 are bonded on the direct pouring gate.

By adopting the technical scheme of the invention, the sprue inner core is embedded in the sprue and has better rigidity, the strength of the sprue can be enhanced, and the sprue plays a role in stably supporting the wax mould piece, so that the interruption of the investment casting process is prevented.