CN211052453U

CN211052453U - Casting device for alloy steel casting

Info

Publication number: CN211052453U
Application number: CN201921867367.8U
Authority: CN
Inventors: 李朝建
Original assignee: Chengdu Xingrui New Material Co ltd
Current assignee: Chengdu Xingrui New Material Co ltd
Priority date: 2019-10-31
Filing date: 2019-10-31
Publication date: 2020-07-21
Anticipated expiration: 2029-10-31

Abstract

The utility model discloses a casting device for alloy steel foundry goods, a serial communication port, including hopper (1) down, install coarse filtration structure (2) at hopper (1) middle part down, install secondary filter (7) on the discharge gate of hopper (1) down. The utility model discloses a coarse filtration structure carries out prefiltration to the molten steel, and the molten steel after the prefiltration flows into the cavity from the intercommunication mouth in, flows to both sides when the molten steel falls on the spacer block, integrates the turbulent flow that the torrent is urgent into steady unhurried current state, reduces the molten steel and the produced oxidizing slag of air oxidation, and the molten steel enters into after the filter element filters and holds the intracavity to from casting hole flow direction foundry goods mould, prevent that the foundry goods from pressing from both sides the sediment, improve the foundry goods quality.

Description

Casting device for alloy steel casting

Technical Field

The utility model relates to a casting equipment field specifically provides a casting device for alloy steel foundry goods.

Background

With the continuous development of the casting industry, the requirement of customers on the quality of castings is higher, and the requirement on how to improve the quality of the castings is higher. In the industry at present, the defect of slag inclusion of a casting is one of main reasons for causing the quality of the casting to be unqualified, and the problem that the industry is troubled is always caused by controlling the primary slag in molten steel to enter a cavity and controlling the molten steel to enter the cavity to generate oxidized slag through turbulent flow.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome above-mentioned defect, provide one kind and can filter the molten steel to prevent the casting device of molten steel turbulent flow.

The purpose of the utility model is realized through the following technical scheme: a casting device for alloy steel castings comprises a blanking hopper, a coarse filtering structure arranged in the middle of the blanking hopper, and a secondary filter arranged on a discharge port of the blanking hopper; the secondary filter comprises an upper cover and a lower cover which are mutually covered and internally provided with a cavity, a separation block which is arranged in the cavity and divides the cavity into a plurality of accommodating cavities, a filter sheet arranged at the upper end of each accommodating cavity and a casting hole arranged on the side wall of each accommodating cavity; the cavity is communicated with the discharging hopper.

Furthermore, a partition plate for dividing the discharge hole into two discharge holes is arranged on the discharge hole of the discharge hopper, a communication port is formed in the upper cover, the cavity is communicated with the discharge holes through the communication port, and the position of the communication port corresponds to the position of the partition block.

The coarse filtration structure is provided with a plurality of conical filtration holes, and the diameters of the upper ends of the conical filtration holes are larger than the diameters of the lower ends of the conical filtration holes, so that the conical filtration holes are inverted cones.

And the outer sides of the discharging hopper and the secondary filter are both provided with heat-insulating layers.

The blanking hopper is divided into an upper section, a middle section and a lower section which are connected in sequence, wherein the upper section and the lower section are both trumpet-shaped, and the middle section is vertically arranged.

The casting hole is positioned at the lower end of the containing cavity.

The middle section of hopper is provided with the boss down, and the coarse filtration structure is then installed on the boss.

The upper cover and the lower hopper are of an integral structure, and the lower cover is connected with the upper cover through a bolt.

Compared with the prior art, the utility model, have following advantage and beneficial effect: the utility model discloses a coarse filtration structure carries out prefiltration to the molten steel, and the molten steel after the prefiltration flows into the cavity from the intercommunication mouth in, flows to both sides when the molten steel falls on the spacer block, integrates the turbulent flow that the torrent is urgent into steady unhurried current state, reduces the molten steel and the produced oxidizing slag of air oxidation, and the molten steel enters into after the filter element filters and holds the intracavity to from casting hole flow direction foundry goods mould, prevent that the foundry goods from pressing from both sides the sediment, improve the foundry goods quality.

Drawings

Fig. 1 is a sectional view of the present invention.

Fig. 2 is a sectional view of the secondary filter of the present invention.

Fig. 3 is a sectional view of the coarse filtration structure of the present invention.

The reference numbers in the drawings are:

the casting device comprises a hopper 1, a rough filtering structure 2, a conical filtering hole 3, a heat insulating layer 4, a partition plate 5, a discharging hole 6, a secondary filter 7, an upper cover 8, a lower cover 9, a communication port 10, a filter plate 11, a containing cavity 12, a casting hole 13, a partition block 14 and a cavity 15.

Detailed Description

The present invention will be described in further detail with reference to examples, but the embodiments of the present invention are not limited thereto.

Examples

As shown in figure 1, the utility model discloses a casting device for alloy steel foundry goods, this casting device are ceramic material, and it includes hopper 1 down, installs the coarse filtration structure 2 at hopper 1 middle part down, installs secondary filter 7 on the discharge gate of hopper 1 down.

Specifically, as shown in fig. 2, the secondary filter 7 includes an upper cover 8 and a lower cover 9 which are covered with each other and have a cavity 15 formed therein, a partition block 14 which is disposed in the cavity 15 and partitions the cavity 15 into a plurality of accommodating chambers 12, a filter sheet 11 disposed at an upper end of the accommodating chamber 12, and a casting hole 13 formed in a side wall of the accommodating chamber 12. The upper cover 8 and the lower hopper 1 are of an integral structure, and the lower cover 9 is connected with the upper cover 8 through bolts. The separating block 14 and the lower cover 9 are of an integrated structure, concave platforms are arranged on the lower cover 9 and the separating block 14, the filter plate 11 is placed on the concave platforms, and the filter plate 11 is made of silicon carbide. The cavity 15 is communicated with the lower hopper 1.

As shown in fig. 1, a partition plate 5 is disposed on the discharge port of the discharging hopper 1 to divide the discharge port into two discharging ports 6, correspondingly, two communicating ports 10 are disposed on the upper cover 8, and the cavity 15 is communicated with the discharging ports 6 through the communicating ports 10. Molten steel in the blanking hopper enters the cavity 15 through the blanking port and the communication port 10.

The position of the communication port 10 corresponds to the position of the separating block 14, so that the molten steel in the feeding hopper 1 falls onto the separating block 14, flows to both sides from the separating block 14, is filtered by the filter 11 and enters the accommodating cavity 12. The casting hole 13 is located the lower extreme that holds chamber 12, and the molten steel that gets into behind the chamber 12 flows to the mould of separating from casting hole 13 to make molten steel turbulent flow integration become steady unhurried current state, reduce the produced oxidation sediment of molten steel and air oxidation.

The lower hopper 1 is divided into an upper section, a middle section and a lower section which are connected in sequence, wherein the upper section and the lower section are both trumpet-shaped, the middle section is vertically arranged, and the flowing speed of molten steel can be reduced through the trumpet-shaped upper section and the trumpet-shaped lower section.

This coarse filtration structure 2 is installed on the middle section of hopper down, and specifically, the middle section of hopper 1 is provided with the boss down, and coarse filtration structure 2 places on the boss to change coarse filtration structure 2. This coarse filtration structure 2 is used for carrying out the prefiltration to the molten steel, and is concrete, as shown in fig. 3, be provided with a plurality of toper straining openings 3 on the coarse filtration structure 2, the upper end diameter of toper straining opening 3 is greater than its lower extreme diameter, makes toper straining opening 3 be the back taper, and toper straining opening 3 is the back taper and makes it can play the filtering action and can also slow down the flow velocity of molten steel outward.

The outer sides of the feeding hopper 1 and the secondary filter 7 are both provided with the heat-insulating layers 4, namely, the outer side of the whole casting device is wrapped with a layer of heat-insulating layer which plays a heat-insulating role to prevent the molten steel from being cooled too fast to influence casting; the insulating layer is made of glass.

The during operation, the molten steel gets into from the upper end of hopper 1 down, coarse filter structure 2 carries out the prefiltration to the molten steel, the molten steel after the prefiltration flows into cavity 15 from the intercommunication mouth in, flow to both sides when the molten steel falls on the spacer block, the turbulent flow that will torrent is integrated into steady unhurried current state, reduce the produced oxidation slag of molten steel and air oxidation, the molten steel gets into after the filter plate filters and holds in chamber 12, and from 13 flow direction foundry goods moulds in casting hole, prevent that the foundry goods from pressing from both sides the sediment, improve the foundry goods quality.

As described above, the present invention can be implemented well.

Claims

1. The casting device for the alloy steel casting is characterized by comprising a blanking hopper (1), a rough filtering structure (2) arranged in the middle of the blanking hopper (1), and a secondary filter (7) arranged on a discharge hole of the blanking hopper (1); the secondary filter (7) comprises an upper cover (8) and a lower cover (9) which are mutually covered and internally provided with a cavity (15), a separation block (14) which is arranged in the cavity (15) and divides the cavity (15) into a plurality of accommodating cavities (12), a filter plate (11) which is arranged at the upper end of the accommodating cavity (12), and a casting hole (13) which is arranged on the side wall of the accommodating cavity (12); the cavity (15) is communicated with the discharging hopper (1).

2. The casting device for the alloy steel casting according to claim 1, wherein a partition plate (5) for dividing the discharge opening into two discharge openings (6) is arranged on the discharge opening of the discharge hopper (1), a communication opening (10) is formed in the upper cover (8), the cavity (15) is communicated with the discharge openings (6) through the communication opening (10), and the position of the communication opening (10) corresponds to the position of the partition block (14).

3. A casting device for alloy steel castings according to claim 2, characterized in that the coarse filtering structure (2) is provided with a plurality of conical filtering holes (3), the upper end diameter of the conical filtering holes (3) is larger than the lower end diameter thereof, so that the conical filtering holes (3) are in an inverted cone shape.

4. A casting device for alloy steel castings according to claim 3, characterized in that the outside of the lower hopper (1) and the secondary filter (7) are provided with an insulating layer (4).

5. A casting device for alloy steel castings according to claim 4, characterized in that the lower hopper (1) is divided into an upper section, a middle section and a lower section connected in sequence, both the upper and lower sections are trumpet-shaped, and the middle section is vertically arranged.

6. A casting apparatus for alloy steel castings according to any of claims 1 to 5, characterized in that the casting aperture (13) is located at the lower end of the receiving chamber (12).

7. A casting device for alloy steel castings according to claim 5, characterized in that the middle section of the hopper (1) is provided with a boss on which the straining structure (2) is mounted.

8. A casting device for alloy steel castings according to claim 7, characterized in that the upper cover (8) is integral with the lower hopper (1), and the lower cover (9) is connected to the upper cover (8) by bolts.