Gating system for lost foam casting of zinc ingot mold

Abstract

The utility model relates to the technical field of evanescent mode casting, and discloses a zinc ingot mold evanescent mode casting gating system which comprises a straight pouring gate, a plurality of downwards inclined transverse pouring gates are arranged on the straight pouring gate, inner pouring gates are arranged on the lower surfaces of the tail ends of the transverse pouring gates, and the inner pouring gates correspond to a pouring gate of a zinc ingot mold. The assembled hollow bottom pipe and the assembled hollow top pipe can be assembled and fixed, and a plurality of connecting transverse pipes are connected and assembled, so that free and convenient disassembly and assembly can be realized, temporary handrail protection is carried out, and the flexibility and the portability of the device are greatly improved; according to the portable temporary protective handrail, the overall structure is stable, the mounting height of the assembled hollow bottom pipe and the assembled hollow top pipe can be freely adjusted, the protective height of the handrail can be freely adjusted, and the adjustability of the device is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of lost foam casting, in particular to a zinc ingot mold lost foam casting pouring system. Background Art

[0002] The zinc ingot mold is a mold used by the disc casting machine to produce zinc ingots. It is subjected to rapid cooling and heating changes during use, and the mold cavity surface is required to be smooth and flat without pores and slag inclusions.

[0003] It is well known that lost foam casting has the characteristics of precise casting size and shape, good repeatability, and precision casting; the surface finish of the casting is high; the casting has no flash or burrs, which reduces the cleaning and grinding workload by more than 50%; the use of dry sand molding without binder, moisture, or any additives eliminates various casting defects and waste caused by moisture, additives, and binders; combined casting, one box with multiple pieces, greatly improves the process yield and production efficiency of castings; it is easy to realize mechanized automatic assembly line production, the production line is flexible, and the production of castings of different alloys, shapes, and sizes can be realized on one production line.

[0004] Relatively speaking, the lost foam casting technology has been applied for a short time, and casting defects are very easy to occur, especially pores and slag inclusions. During the lost foam casting process, the EPS material gasifies and burns to produce a large amount of gas, which can easily produce invasive pores. In addition, the design of the lost foam casting pouring system relies heavily on experience. Utility Model Content

[0005] The utility model aims to provide a zinc ingot mold lost foam casting pouring system to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0007] A zinc ingot mold lost foam casting pouring system comprises a sprue, a plurality of runners are arranged on the sprue, an inner gate is arranged on the lower surface of the end of the runner, and the inner gate corresponds to the casting port of the zinc ingot mold.

[0008] The end of the runner is inclined downward.

[0009] The angle between the center line of the runner and the horizontal plane is 30°.

[0010] There are a plurality of zinc ingot moulds, and the plurality of zinc ingot moulds are fixedly connected together.

[0011] The inner gate is bonded and connected to the zinc ingot mold.

[0012] In summary, due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0013] The utility model can realize free and convenient disassembly and assembly by assembling and fixing the assembled hollow bottom tube and the assembled hollow top tube and connecting and assembling multiple connecting cross tubes, so as to perform temporary railing protection, which greatly improves the flexibility and portability of the device; the overall structure of the portable temporary protection railing is relatively stable, and the installation height of the assembled hollow bottom tube and the assembled hollow top tube can be freely adjusted, and the height of the railing protection can be freely adjusted, which greatly improves the adjustability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model;

[0015] In the figure: zinc ingot mold 1, sprue 2, runner 3, inner gate 4. DETAILED DESCRIPTION

[0016] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Generally, the components of the embodiment of the utility model described and shown in the drawings here can be arranged and designed in various different configurations.

[0017] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the present invention to be protected, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] like Figure 1 As shown, the utility model provides a zinc ingot mold lost foam casting pouring system, including a sprue 2, which is used to buffer the molten steel and allow the molten steel to slowly flow into the runner 2; a plurality of downwardly inclined runners 3 are arranged on the sprue 2, and the angle between the center line of the runner 3 and the horizontal plane is 30°. The inclined arrangement can facilitate the flow of molten steel; an inner gate 4 is arranged on the lower surface of the end of the runner 3, and the inner gate 4 is bonded and connected to the zinc ingot mold 1, and the inner gate 4 corresponds to the casting port of the zinc ingot mold 1. There are a plurality of zinc ingot molds 1, and the plurality of zinc ingot molds 1 are fixedly connected together.

[0019] The specific process of the utility model is: using EPS material to form a zinc ingot mold foam model through a mold, cutting a foam board to bond a sprue, a cross runner and an inner gate to form a lost foam casting system, using a double-layer casting system when the ingot mold height is more than 300mm and less than 600mm, brushing the surface of the zinc ingot mold foam model and the casting system foam model with lost foam coating, the coating layer thickness is 1-3mm, after the coating is dried, the mold is assembled outside the box, a plurality of zinc ingot molds and the casting system are bonded, and buried in a negative pressure sand box dedicated to the lost foam, casting is carried out under negative pressure conditions, and the zinc ingot mold casting is obtained after the box is cleaned.

Claims

1. A zinc ingot mold lost foam casting pouring system, characterized in that: The invention comprises a sprue (2), a plurality of runners (3) are arranged on the sprue (2), an inner gate (4) is arranged on the lower surface of the end of the runner (3), and the inner gate (4) corresponds to the casting port of the zinc ingot mold (1).

2. A zinc ingot mold lost foam casting pouring system according to claim 1, characterized in that: The end of the runner (3) is inclined downward.

3. A zinc ingot mold lost foam casting pouring system according to claim 1, characterized in that: The angle between the center line of the runner (3) and the horizontal plane is 30°.

4. A zinc ingot mold lost foam casting pouring system according to claim 1, characterized in that: There are a plurality of zinc ingot moulds (1), and the plurality of zinc ingot moulds (1) are fixedly connected together.

5. A zinc ingot mold lost foam casting pouring system according to claim 2, characterized in that: The inner gate (4) is bonded and connected to the zinc ingot mold (1).

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