CN111074035A

CN111074035A - Device for improving nodulizing stability of cast iron wire feeding

Info

Publication number: CN111074035A
Application number: CN202010024540.9A
Authority: CN
Inventors: 张波; 陈培忠; 张潇; 刘畅; 朱志鹏; 张建斌
Original assignee: Shanghai Sandmann Foundry Co Ltd
Current assignee: Shanghai Sandmann Foundry Co Ltd
Priority date: 2020-01-10
Filing date: 2020-01-10
Publication date: 2020-04-28

Abstract

The application discloses improve device of cast iron wire feeding balling stability, including setting up in the be built by contract device at balling reaction package top, the be built by contract device is including extending to balling reaction package top opening intraoral center boss, the center boss outside is formed with the seal land along the hoop, balling reaction package top sealed support in the seal land bottom, center boss outer wall with be formed with the guide area between the balling reaction package inner wall, the guide area interval is 25 + -3 mm. The invention has the advantages that the spheroidizing ladle cover adopts proper shape, size structure, material and installation mode, thereby avoiding molten iron splashing generated in spheroidizing reaction, prolonging the service life of the ladle cover, improving the quality of molten iron, improving the working environment, reducing the emission of dust and smoke, reducing the labor intensity of ladle repair, stabilizing the production process and the product quality, and reducing the production cost.

Description

Device for improving nodulizing stability of cast iron wire feeding

Technical Field

The application relates to the field of automobile part casting, in particular to a device for improving nodularization stability of cast iron wire feeding.

Background

The development of modern industrial production has higher and higher requirements on product quality, castings are directly formed by utilizing liquid metal, and a plurality of influencing factors are generated in the production process, so that various factors are stably controlled, and the premise of ensuring the production of high-quality castings is provided. But the economic benefit and the environmental protection of enterprises are also considered while ensuring the production process, and qualified and high-quality castings are stably produced with minimum investment.

In order to stabilize the production process, ensure the product quality and improve the economic benefit of enterprises, in some problems, only depending on casting technology, the breakthrough is difficult, and auxiliary tools are required to be added. The traditional spheroidization device is obtained by pouring refractory materials directly (as shown in figure 1), a large amount of molten iron splashes and flue gas overflows in the use process, magnesium steam escapes quickly, the spheroidization effect of the casting cannot achieve the expected effect, the product quality is influenced, and certain resource waste and environmental pollution are caused;

therefore, a new spheroidization ladle cover reaction device needs to be designed to improve the spheroidization effect of the molten iron, reduce resource waste, protect the working environment, prolong the service life of the ladle cover, reduce the production cost and reduce the product quality risk.

Disclosure of Invention

The invention aims to provide a device for improving the nodulizing stability of cast iron wire feeding, which avoids molten iron splashing generated in a nodulizing reaction by adopting a proper shape, a proper size structure, a proper material and a proper installation mode for a nodulizing ladle cover, prolongs the service life of the ladle cover, improves the molten iron quality, improves the working environment, reduces the emission of dust and smoke, reduces the labor intensity of ladle repair, stabilizes the production process and the product quality, and reduces the production cost.

In order to achieve the above object, the present invention provides the following technical solutions.

The embodiment of the application discloses improve device of cast iron wire feeding balling stability, including setting up in the be built by contract device at balling reaction package top, the be built by contract device is including extending to balling reaction package top opening intraoral central boss, the center boss outside is formed with the seal land along the hoop, balling reaction package top sealed support in the seal land bottom, central boss outer wall with be formed with the guide space between the balling reaction package inner wall, the guide space interval is 25 + -3 mm.

Preferably, in the above apparatus for improving the spheroidization stability of the cast iron wire feed, the top opening of the spheroidization reaction ladle is inclined outward.

Preferably, in the above apparatus for improving the spheroidization stability of the cast iron wire feed, the circumferentially inner end and the circumferentially outer end of the guide area are parallel to each other.

Preferably, in the above device for improving the spheroidization stability of the cast iron wire feed, the center of the central boss is provided with a wire feeding hole with the diameter of 60mm, and one side of the wire feeding hole is provided with a dust suction hole with the diameter of 180 x 280 mm.

Preferably, in the above apparatus for improving the spheroidization stability of the cast iron wire feed, the central boss is made of pouring refractory material.

Preferably, in the above apparatus for improving the spheroidization stability of the cast iron wire feed, the sealing region is formed by winding ceramic fibers around the central boss.

Preferably, in the above apparatus for improving the spheroidization stability of the cast iron wire, the ceramic fiber comprises 35 mass percent of Al₂O₃15% of ZrO₂50% SiO₂The fiber length is 100-250mm, the tensile strength is 75Kpa, and the maximum use temperature is 1400 ℃.

Preferably, in the above apparatus for improving the spheroidization stability of cast iron wire feeding, a reinforcing rib is provided in the central boss.

The invention has the advantages that the device adopts heat-resistant steel, and the continuous work is not changed in a high-temperature state. Through changing structure and relevant size, sealed balling reaction space, the device, traditional balling reaction device relatively has reduced the splashing of molten iron and the spilling over of flue gas, has increased the life of be built by contract, has improved the molten iron quality, improves operational environment, and stable production process reduces manufacturing cost.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments described in the present application, and other drawings can be obtained by those skilled in the art without creative efforts.

FIG. 1 is a schematic view of a spheroidizing apparatus according to the prior art;

FIG. 2 is a schematic view of an apparatus for improving the spheroidization stability of cast iron wire feeding according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described in detail below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

With reference to fig. 2, the device for improving the nodularization stability of the cast iron wire feeding comprises a covering device 200 arranged at the top of a nodularization reaction package 100, wherein the covering device 200 comprises a central boss 201 extending into an opening at the top of the nodularization reaction package 100, a sealing area 202 is formed at the outer side of the central boss 201 along the circumferential direction, the top of the nodularization reaction package 100 is sealed and supported at the bottom of the sealing area 202, a guiding area 203 is formed between the outer wall of the central boss 201 and the inner wall of the nodularization reaction package 100, and the distance between the guiding areas 203 is 25 +/-3 mm. The top opening of the spheroidizing reaction package 100 is inclined outward. The circumferentially inner end and the circumferentially outer end of the guiding area 203 are parallel to each other. The center of the center boss 201 is formed with a wire feeding hole 204 with a diameter of 60mm, and one side of the wire feeding hole 204 is formed with a dust suction hole (not shown) with a diameter of 180 x 280 mm. The central boss 201 is made of refractory material by pouring. The sealing area 202 is formed by ceramic fibers wound around the central boss 201. The ceramic fiber comprises 35 mass percent of Al₂O₃15% of ZrO₂50% SiO₂The fiber length is 100-250mm, the tensile strength is 75Kpa, and the maximum use temperature is 1400 ℃. A reinforcing rib 205 is arranged in the central boss 201.

In the technical scheme, a sealing area is in flexible connection with an upper opening of a spheroidizing bag structure through ceramic fibers, the ceramic fibers in the sealing area are wound around a central boss until the sealing area is full of the ceramic fibers, and finally the area is compacted by applying force; the upper opening of the inner diameter of the spheroidizing bag in the guide area is parallel to the outer side of the front end of the central boss, the distance between the spheroidizing bag and the central boss is 25 +/-3 mm, and the guide area plays a role in guiding; if the parallel distance between the inner diameter upper opening of the spheroidizing bag and the outer side of the front end of the central boss is more than 25 +/-3 mm, molten iron is easy to splash out, and if the parallel distance is less than 25 +/-3 mm, the molten iron is easy to collide, accumulate slag and clamp during assembly, and the like, so that the use effect is influenced; the central boss area comprises two parts of a dust suction hole with the diameter of 180 x 280mm and a wire feeding hole with the diameter of 60mm, and the other parts are poured by pouring refractory materials.

In conclusion, the spheroidizing reaction space is sealed by changing the structure and the related size, so that compared with the traditional spheroidizing reaction device, the molten iron splashing and the smoke overflow are reduced, the service life of the ladle cover is prolonged, the molten iron quality is improved, the working environment is improved, the production process is stabilized, the production cost is reduced, the defects in the original process are overcome, and the high industrial utilization value is realized.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing is directed to embodiments of the present application and it is noted that numerous modifications and adaptations may be made by those skilled in the art without departing from the principles of the present application and are intended to be within the scope of the present application.

Claims

1. The utility model provides an improve device of cast iron wire feeding balling stability, its characterized in that, is including setting up in the be built by contract device at balling reaction package top, the be built by contract device is including extending to balling reaction package intraoral central boss, the center boss outside is formed with the seal land along the hoop, balling reaction package top is sealed support hold in the seal land bottom, central boss outer wall with be formed with the guide space between the balling reaction package inner wall, the guide space is 25 + -3 mm.

2. The apparatus for improving the spheroidization stability of cast iron wire feeding according to claim 1, wherein the top opening of the spheroidization reaction bag is inclined outwards.

3. The apparatus for improving the spheroidization stability of cast iron wire feeding according to claim 1, wherein the circumferentially inner end and the circumferentially outer end of the guide zone are parallel to each other.

4. The apparatus for improving the spheroidization stability of cast iron wire feeding according to claim 1, wherein the center of the central boss is formed with a wire feeding hole with a diameter of 60mm, and one side of the wire feeding hole is formed with a dust suction hole with a diameter of 180 x 280 mm.

5. The apparatus for improving the spheroidization stability of cast iron wires according to claim 1, wherein the central boss is made of refractory material by pouring.

6. The apparatus for improving the spheroidization stability of cast iron wire feeding according to claim 1, wherein the sealing zone is formed by winding ceramic fibers around the central boss.

7. The apparatus for improving the spheroidization stability of cast iron wire feeding according to claim 6, wherein the ceramic fiber comprises 35 mass% of Al₂O₃15% of ZrO₂50% SiO₂The fiber length is 100-250mm, the tensile strength is 75Kpa, and the maximum use temperature is 1400 ℃.

8. The apparatus for improving the spheroidization stability of cast iron wire feeding according to claim 1, wherein a reinforcing rib is arranged in the central boss.