CN212216997U - Inoculation time changing device suitable for ADI furrow opener casting product - Google Patents
Inoculation time changing device suitable for ADI furrow opener casting product Download PDFInfo
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- CN212216997U CN212216997U CN202020398336.9U CN202020398336U CN212216997U CN 212216997 U CN212216997 U CN 212216997U CN 202020398336 U CN202020398336 U CN 202020398336U CN 212216997 U CN212216997 U CN 212216997U
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Abstract
An inoculation time changing device suitable for ADI furrow opener casting products comprises a molten iron runner. The molten iron runner is formed by casting molding sand; the cross section of the molten iron runner is circular; the molten iron runner is formed by sequentially connecting multiple sections of branch runners end to end; the axis of each branch flow channel is parallel to the horizontal plane; according to the sequence from 1 to n, the horizontal height of each section of branch flow channel is reduced in sequence; n is a natural number; in two adjacent branch runners, the tail end of the front branch runner and the head end of the rear branch runner are simultaneously connected with the upper part and the bottom of a vertical channel, and the top of the vertical channel is positioned on the top surface of the casting molding sand; the head end of the 1 st section of branch flow channel is connected with the bottom of a vertical channel; the top of each vertical channel is connected with a pouring cup; the tail end of the nth section of branch flow channel is positioned on the bottom surface of the casting molding sand; the inner wall of the molten iron runner is coated with a refractory coating for casting. The device can control the molten iron inoculation time of a certain product more uniformly.
Description
Technical Field
The technical scheme belongs to the technical field of casting, and particularly relates to a inoculation time changing device suitable for ADI furrow opener casting products.
Background
With the rapid development of equipment manufacturing industry, the requirement on castings is higher and higher, a plurality of cast irons with high standard and high requirement appear in the field of cast irons, and a furrow opener is a product with higher requirement in agricultural machinery and directly used for excavating the ground. The adoption of the austempered ductile iron ADI for casting the furrow opener can improve the mechanical property of the product. However, the ADI casting production process is influenced by a plurality of factors, for example, the inoculation reaction time control requirement of an inoculant is one of important process factors.
For a casting production line, the collinear production of multiple-specification castings is extremely common, and the optimal inoculation time of different products is different, which brings difficulty to the field process control. In the inoculation process, most of the inoculant powder is scattered at the position of a kettle nozzle of a casting ladle, and the inoculant is inoculated along with the flowing of molten iron. At this time, the operation is manually monitored by the proof of charge and the next process is started. The stability of the process control of this type of operation is insufficient. Particularly, for products with small volume, multiple specifications and large quantity, such as a furrow opener, the problem of product quality consistency is further shown, and difficulty is brought to the subsequent defect making-up process.
Disclosure of Invention
In order to solve the problems in the prior art, the technical scheme provides an inoculation time changing device suitable for ADI furrow opener products, which can be easily integrated into the existing casting production line and realizes that the inoculation time is changed along with the products.
The inoculation time changing device suitable for the ADI furrow opener product comprises a molten iron runner and is characterized in that the molten iron runner is formed by casting molding sand;
the cross section of the molten iron runner is circular;
the molten iron runner is formed by sequentially connecting multiple sections of branch runners end to end; the axis of each branch flow channel is parallel to the horizontal plane;
according to the sequence from 1 to n, the horizontal height of each section of branch flow channel is reduced in sequence; n is a natural number;
in two adjacent branch runners, the tail end of the front branch runner and the head end of the rear branch runner are simultaneously connected with the upper part and the bottom of a vertical channel, and the top of the vertical channel is positioned on the top surface of the casting molding sand; the head end of the 1 st section of branch flow channel is connected with the bottom of a vertical channel; the top of each vertical channel is connected with a pouring cup;
the tail end of the nth section of branch flow channel is positioned on the bottom surface of the casting molding sand;
the inner wall of the molten iron runner is coated with a refractory coating for casting.
In the projection of the horizontal plane, the axes of the branch flow passages are 1S shape or a plurality of S shapes connected end to end.
The casting molding sand is divided into a plurality of layers from top to bottom, molding sand in adjacent layers forms a section of branch flow channel, and the axis of the section of branch flow channel is positioned on the parting surface of the two layers of casting molding sand.
When the device is used, the device can be manufactured by using a standard sand box and is fixed on a production line. According to the inoculation time requirements of different batches of products, molten iron can be injected from different pouring cups. The inoculation time is different because the flow length of the molten iron is different. And the inoculated molten iron flows into the next process from the tail end of the nth branch runner. In the process, the temperature of the molten iron is fully preserved by the molding sand.
Compared with common casting products, the manufacturing method of the device can firstly use the pattern to shakeout and press in the sand box to obtain the cavity (namely the molten iron runner), and then the pattern is taken out by box separation and then the box is closed, and can also use foam lost mould manufacturing and the like, and the manufacturing method of the cavity is selected according to the complexity of the cavity. The manufacturing materials used by the device are all from casting sites, such as molding sand, sand boxes, refractory coatings and the like.
Through actual manufacturing and use, the device can control the molten iron inoculation time of a certain product more uniformly.
Drawings
FIG. 1 is a schematic plan view of a molten iron runner of the present apparatus;
FIG. 2 is a schematic top view (inside the molding box) of the molten iron runner;
FIG. 3 is a schematic longitudinal sectional view (inside the molding box) of the molten iron runner;
in the figure: the casting sand casting device comprises a molten iron runner 1, a sand box 2, casting sand 3, a branch runner 4, a vertical channel 5, a pouring cup 6, a molten iron outlet 7 and a parting surface 8.
Detailed Description
The technical scheme is further explained by combining the drawings and the detailed implementation mode as follows:
referring to fig. 1 to 3, an inoculation time changing device suitable for ADI furrow opener casting products comprises a molten iron runner, and is characterized in that the molten iron runner is formed by casting sand molding;
the cross section of the molten iron runner is circular;
the molten iron runner is formed by sequentially connecting multiple sections of branch runners end to end; the axis of each branch flow channel is parallel to the horizontal plane;
according to the sequence from 1 to n, the horizontal height of each section of branch flow channel is reduced in sequence; n is a natural number;
in two adjacent branch runners, the tail end of the front branch runner and the head end of the rear branch runner are simultaneously connected with the upper part and the bottom of a vertical channel, and the top of the vertical channel is positioned on the top surface of the casting molding sand; the head end of the 1 st section of branch flow channel is connected with the bottom of a vertical channel; the top of each vertical channel is connected with a pouring cup;
the tail end (molten iron outlet) of the nth section of branch runner is positioned on the bottom surface of the foundry sand;
the inner wall of the molten iron runner is coated with a refractory coating for casting.
In this example: n is 3. The axis of each branch flow channel is 1S-shaped. The casting molding sand is divided into four layers from top to bottom, and the four layers are respectively arranged in four sand boxes; the axis of each section of branch flow channel corresponds to the parting surface of the four sections of casting molding sand.
Claims (3)
1. A inoculation time changing device suitable for ADI furrow opener casting products comprises a molten iron runner and is characterized in that the molten iron runner is formed by casting sand molding;
the cross section of the molten iron runner is circular;
the molten iron runner is formed by sequentially connecting multiple sections of branch runners end to end; the axis of each branch flow channel is parallel to the horizontal plane;
according to the sequence from 1 to n, the horizontal height of each section of branch flow channel is reduced in sequence; n is a natural number;
in two adjacent branch runners, the tail end of the front branch runner and the head end of the rear branch runner are simultaneously connected with the upper part and the bottom of a vertical channel, and the top of the vertical channel is positioned on the top surface of the casting molding sand; the head end of the 1 st section of branch flow channel is connected with the bottom of a vertical channel; the top of each vertical channel is connected with a pouring cup;
the tail end of the nth section of branch flow channel is positioned on the bottom surface of the casting molding sand;
the inner wall of the molten iron runner is coated with a refractory coating for casting.
2. The inoculation time varying device for ADI furrow opener casting products as claimed in claim 1, wherein the axis of the branch flow channel is 1S-shaped or a plurality of S-shaped end-to-end in the projection of the horizontal plane.
3. The apparatus of claim 1, wherein said casting sand is divided into a plurality of layers from top to bottom, and wherein said molding sand of adjacent layers forms a branch flow channel, the axis of said branch flow channel being on the parting plane of said two layers of molding sand.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020398336.9U CN212216997U (en) | 2020-03-25 | 2020-03-25 | Inoculation time changing device suitable for ADI furrow opener casting product |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020398336.9U CN212216997U (en) | 2020-03-25 | 2020-03-25 | Inoculation time changing device suitable for ADI furrow opener casting product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212216997U true CN212216997U (en) | 2020-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020398336.9U Active CN212216997U (en) | 2020-03-25 | 2020-03-25 | Inoculation time changing device suitable for ADI furrow opener casting product |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212216997U (en) |
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2020
- 2020-03-25 CN CN202020398336.9U patent/CN212216997U/en active Active
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