CN216912028U

CN216912028U - Ingot mould casting for pouring large steel ingot

Info

Publication number: CN216912028U
Application number: CN202220224171.2U
Authority: CN
Inventors: 尹健; 王健
Original assignee: Yixing Jinnali Machinery Manufacturing Co ltd
Current assignee: Yixing Jinnali Machinery Manufacturing Co ltd
Priority date: 2022-01-26
Filing date: 2022-01-26
Publication date: 2022-07-08
Anticipated expiration: 2032-01-26

Abstract

The utility model discloses an ingot mould casting for pouring large steel ingots, which relates to the technical field of casting, wherein when the large steel ingots are cast, molten iron flows in from a casting opening at the bottom of the casting, the molten iron slowly rises in a demoulding cavity to form the large steel ingots, and after the large steel ingots are cooled, the large steel ingots are demoulded to be separated from the steel ingot mould casting.

Description

Ingot mould casting for pouring large steel ingot

Technical Field

The utility model relates to the technical field of casting, in particular to an ingot mold casting for pouring a large-scale steel ingot.

Background

At present, the demand of steel plates with large thickness, large single weight and high flaw detection level in the market is more and more, the purpose is to reduce welding and improve the quality of products, the weight of the steel plates with large single weight is required to reach 40 tons or even 50 tons, while the steel plates are rolled into flat steel ingots with the largest weight, the maximum steel plate rolling weight is 50 tons, and the steel plates are difficult to meet the requirement. To produce 40-50 tons of steel plates, 70-80 tons of steel ingots are required to meet the requirements, so that 70-80 tons of large ingot moulds for forging and rolling plates must be developed.

Meanwhile, the customer has high requirements on the internal quality of the steel plate, and the larger the steel ingot is, the more serious the internal defects are. The existing forging ingot is almost large at the top and small at the bottom, the cap opening is large, the cap volume ratio is also large, the bottom is in a round table shape and accounts for about 4 percent of the weight of the steel ingot, the steel ingot with the characteristics is not easy to separate from a steel ingot mould after the casting is finished, and the convenience of demoulding the steel ingot is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a steel ingot is not easy to separate from an ingot mould after casting is finished, and the convenience of demoulding the steel ingot is reduced.

In order to solve the technical problems, the utility model provides an ingot mold casting for pouring large-scale steel ingots, which comprises a mold body, wherein a demolding cavity in a shape of a circular truncated cone is arranged in the mold body along the length direction of the mold body, one end with the smallest inner diameter in the demolding cavity is communicated with a casting opening, the inner diameter of the casting opening is gradually increased along the direction departing from the demolding cavity, the largest inner diameter of the casting opening is smaller than the smallest inner diameter of the demolding cavity, one end, away from the casting opening, of the demolding cavity is communicated with the demolding opening, the inner diameter of the demolding opening is gradually increased along the direction departing from the demolding cavity, the smallest inner diameter of the demolding opening is equal to the largest inner diameter of the demolding cavity, and the demolding opening, the demolding cavity and the casting opening are sequentially communicated along the length direction of the mold body and penetrate through the mold body.

The technical effects are as follows: when the large-scale steel ingot is cast, molten iron flows in from a casting opening at the bottom of a casting, the molten iron slowly rises in a demolding cavity to form the large-scale steel ingot, and the large-scale steel ingot is demolded after cooling to be separated from the steel ingot mold casting.

The utility model further defines the technical scheme that:

furthermore, the side surface of the demoulding cavity and the end surface close to one end of the casting opening are arranged in a rounding way.

In the foregoing ingot mold casting for casting a large-sized steel ingot, the mold body is symmetrically fixed with the reinforcing convex rings at both ends in the length direction thereof, and the outer diameters of the reinforcing convex rings are set to be larger than the outer diameter of the mold body.

The steel ingot mould casting for pouring the large-scale steel ingot is characterized in that two lifting hook mounting openings for mounting lifting hooks are formed in the circumferential outer wall of the mould body along the length direction of the mould body.

In the ingot mold casting for casting the large-sized steel ingot, the lifting hook mounting openings are symmetrically arranged along the length direction of the mold body.

In the foregoing ingot mold casting for casting a large-sized steel ingot, the hook mounting openings are respectively fixed to the reinforcing convex rings on the corresponding sides.

In the ingot mold casting for casting the large-sized steel ingot, the mold body is made of HT300 gray cast iron.

The utility model has the beneficial effects that:

the fillet at the bottom of the demoulding cavity is arranged, so that the bottom of the large-sized steel ingot after moulding is also in the shape of the fillet, the large-sized steel ingot is more easily separated from the demoulding cavity, the mould body is made of HT300 gray cast iron, and the gray cast iron and the wrought iron molten iron are not easy to stick together, so that the convenience of separating the large-sized steel ingot from the mould body is further enhanced.

Drawings

FIG. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic view of the external structure of the present invention;

fig. 3 is a schematic view of the end structure of the present invention.

Wherein: 1. a mold body; 2. demoulding cavity; 3. a casting gate; 4. a demoulding port; 5. a reinforcing convex ring; 6. a hook mounting opening.

Detailed Description

The steel ingot die casting for pouring large-scale steel ingot that this embodiment provided, the structure is as shown in fig. 1 to fig. 3, including die body 1, the material of die body 1 sets up to HT300 grey cast iron, die body 1 is fixed with enhancement bulge loop 5 along self length direction's both ends symmetry, and the external diameter of strengthening bulge loop 5 sets up the external diameter for being greater than die body 1, be provided with two lifting hook installing ports 6 that supply the lifting hook installation along self length direction on the circumference outer wall of die body 1, lifting hook installing port 6 sets up along die body 1's length direction symmetry, lifting hook installing port 6 is fixed in respectively on the enhancement bulge loop 5 that corresponds the side.

Set up the drawing of patterns chamber 2 that the shape is the round platform shape along self length direction in the die body 1, the one end intercommunication that drawing of patterns chamber 2 internal diameter is minimum has casting gate 3, the internal diameter of casting gate 3 sets up to follow the direction crescent that deviates from drawing of patterns chamber 2, and the biggest internal diameter of casting gate 3 sets up to be less than the minimum internal diameter that draws of patterns chamber 2, the one end intercommunication that drawing of patterns chamber 2 deviates from casting gate 3 has drawing of patterns mouth 4, the internal diameter of drawing of patterns mouth 4 sets up to follow the direction crescent that deviates from drawing of patterns chamber 2, and the minimum internal diameter of drawing of patterns mouth 4 sets up to be equal to the biggest internal diameter that draws of patterns chamber 2, drawing of patterns mouth 4, drawing of patterns chamber 2 and drawing of patterns mouth 3 communicate in proper order and run through in die body 1 along die body 1 length direction, and drawing of patterns chamber 2 the side and lean on the setting of radius angle between the terminal surface of drawing of casting gate 3 one end.

When large-scale steel ingots are cast, molten iron flows in from a casting opening 3 at the bottom of a casting, the molten iron slowly rises in a demolding cavity 2 to form the large-scale steel ingots, and the large-scale steel ingots are demolded after cooling to be separated from the steel ingot mold casting, because the casting opening 3 at the bottom adopts the structural design that the upper opening is small and the lower opening is large, the end part of the molten steel is more easily broken when the molten steel forms the steel ingots during cooling shrinkage, so that the steel ingots are more easily separated from the demolding cavity 2, the internal structure of the demolding cavity 2 is set to be large at the upper opening and small at the lower opening, and the demolding opening 4 also adopts the structural design that the upper opening is large and the lower opening is small, so that the large-scale steel ingots are further more easily separated from the whole casting, and the demolding convenience of the large-scale steel ingots is greatly improved.

The fillet at the bottom of the demoulding cavity 2 is arranged, so that the bottom of the large-sized steel ingot after moulding is also in the shape of the fillet, the large-sized steel ingot is more easily separated from the demoulding cavity 2, the mould body 1 is made of HT300 gray cast iron, and the gray cast iron and the wrought iron molten iron are not easy to stick together, so that the convenience of separating the large-sized steel ingot from the mould body 1 is further enhanced.

In addition to the above embodiments, the present invention may have other embodiments; all technical solutions formed by adopting equivalent substitutions or equivalent transformations fall within the protection scope of the claims of the present invention.

Claims

1. A steel ingot die casting for pouring large-scale steel ingots comprises a die body (1) and is characterized in that: set up demoulding chamber (2) that the shape is the round platform shape along self length direction in die body (1), the one end intercommunication that drawing of patterns chamber (2) internal diameter is minimum has casting gate (3), the internal diameter of casting gate (3) sets up to the direction crescent along deviating from drawing of patterns chamber (2), and the biggest internal diameter of casting gate (3) sets up to being less than the minimum internal diameter that draws of patterns chamber (2), the one end intercommunication that draws of patterns chamber (2) deviates from casting gate (3) has drawing of patterns mouth (4), the internal diameter of drawing of patterns mouth (4) sets up to the direction crescent along deviating from drawing of patterns chamber (2), and the minimum internal diameter of drawing of patterns mouth (4) sets up to the biggest internal diameter that equals drawing of patterns chamber (2), drawing of patterns mouth (4), drawing of patterns chamber (2) and casting gate (3) communicate in proper order and run through in die body (1) along die body (1) length direction.

2. An ingot mold casting for pouring a large steel ingot according to claim 1, characterized in that: and a fillet is arranged between the side surface of the demolding cavity (2) and the end surface close to one end of the casting opening (3).

3. An ingot mold casting for pouring a large steel ingot according to claim 1, characterized in that: the die body (1) is symmetrically fixed with reinforcing convex rings (5) at two ends along the length direction of the die body, and the outer diameter of each reinforcing convex ring (5) is larger than that of the die body (1).

4. An ingot mold casting for pouring a large steel ingot according to claim 3, characterized in that: and two lifting hook mounting openings (6) for mounting lifting hooks are formed in the circumferential outer wall of the die body (1) along the length direction of the die body.

5. An ingot mold casting for pouring a large steel ingot according to claim 4, characterized in that: the lifting hook mounting openings (6) are symmetrically arranged along the length direction of the die body (1).

6. An ingot mold casting for casting large ingots according to claim 5, wherein: the lifting hook mounting openings (6) are respectively fixed on the reinforcing convex rings (5) on the corresponding sides.

7. An ingot mold casting for pouring a large steel ingot according to claim 5, characterized in that: the die body (1) is made of HT300 gray cast iron.