CN215144606U - Long-service-life sprue bush for aluminum alloy low-pressure casting process - Google Patents
Long-service-life sprue bush for aluminum alloy low-pressure casting process Download PDFInfo
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- CN215144606U CN215144606U CN202121166892.4U CN202121166892U CN215144606U CN 215144606 U CN215144606 U CN 215144606U CN 202121166892 U CN202121166892 U CN 202121166892U CN 215144606 U CN215144606 U CN 215144606U
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Abstract
The utility model discloses a long-life runner cover for aluminum alloy low pressure casting process, including the runner cover, runner cover inner wall uses runner cover top layer as the initiating layer, has set gradually heat preservation one and anticorrosive coating, and the skin has set gradually heat preservation two and wearing layer. The surface of the sprue bush is treated, so that the heat insulation performance, the corrosion resistance and the abrasion resistance of the sprue bush are improved, the service life of the sprue bush is effectively prolonged, and the casting quality is improved.
Description
Technical Field
The utility model relates to an alloy casting technical field, more specifically the long-life runner cover that says so relates to a be used for aluminum alloy low pressure casting process.
Background
In the existing aluminum liquid pouring mold, a sprue bush is an important part in the aluminum liquid pouring link, and the current sprue bush is generally made of ceramic materials or steel materials, but the sprue bush and the current sprue bush are good and bad respectively. The sprue bush made of the ceramic material well avoids the contact of molten aluminum and a forming die, but the sprue bush is easy to crack due to the overhigh temperature of the molten aluminum, so that the production cost is improved, and the production is influenced in the replacement process; the sprue bush made of the steel material can withstand high temperature and is not easy to crack, but is easy to corrode by molten aluminum, the heat insulation performance of the sprue bush made of the steel material and the ceramic material is poor, and feeding is influenced by cooling of the sprue bush during pouring, so that the product quality is influenced finally.
Therefore, how to provide a novel sprue bush with good heat insulation performance, corrosion resistance and wear resistance is a problem to be solved urgently by the technical personnel in the field.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a long-life runner cover for aluminum alloy low pressure casting process through handling steel runner cover top layer, makes it have heat preservation and corrosion-resistant function, promotes its life and ensures the pouring product quality.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a long-life runner cover for aluminum alloy low pressure casting process, includes the runner cover, runner cover inner wall uses runner cover top layer as the initiating layer, has set gradually heat preservation one and anticorrosive coating, and the skin has set gradually heat preservation two and wearing layer.
Furthermore, the first heat-insulating layer and the second heat-insulating layer are both coated with alumina.
Further, the anticorrosive layer is a tungsten-nickel alloy coating layer.
Further, the wear-resistant layer is sprayed zirconium oxide.
Can know via foretell technical scheme, compare with prior art, the utility model discloses a long-life runner cover for aluminum alloy low pressure casting process has following beneficial effect: the surface of the sprue bush is treated, so that the heat insulation performance, the corrosion resistance and the abrasion resistance of the sprue bush are improved, the service life of the sprue bush is effectively prolonged, and the casting quality is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required 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 embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
Fig. 1 is the overall structure diagram of the long-life sprue bush for the aluminum alloy low-pressure casting process.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
As shown in the attached drawing 1, the long-service-life sprue bush for the aluminum alloy low-pressure casting process comprises a sprue bush 1, wherein the inner wall of the sprue bush 1 uses a sprue bush surface layer as an initial layer, a first heat insulation layer 2 and an anticorrosive layer 3 are sequentially arranged, and a second heat insulation layer 4 and a wear-resistant layer 5 are sequentially arranged on the outer layer.
The raw materials of the technical scheme are as follows: the setting of double-deck heat preservation has ensured the thermal insulation performance of runner cover, avoids the quality that the molten liquid influences the foundry goods in the cooling of runner cover department, and the erosion of molten liquid to runner cover itself is avoided in the inlayer is anticorrosive, and the wearing and tearing of foundry goods to it when the drawing of patterns have been avoided to outer wearing layer effectively promote the life of runner cover.
In some specific schemes, the first insulating layer 2 and the second insulating layer 4 are coated alumina, and the alumina has good insulating effect and low cost.
In some specific schemes, the anticorrosive layer 3 is a tungsten-nickel alloy coating layer, corrosion of molten liquid to a sprue bush is avoided due to inner layer corrosion prevention, the service life of the sprue bush is effectively prolonged, and the tungsten-nickel alloy anticorrosive layer has better environmental protection performance compared with a traditional chromium alloy anticorrosive layer.
In some specific schemes, the wear-resistant layer 5 is sprayed with zirconia, in the casting process of the sprue bush, when the sprue bush is naturally cooled after casting and forming, the zirconia is sprayed after reaching a certain temperature, the zirconia has good heat preservation performance, the heat preservation effect of the sprayed zirconia layer enables the zirconia and the surface of the casting to form phase transformation under the action of thermal stress, the bonding strength of the zirconia and the surface of the casting are improved, and the zirconia has high hardness and effectively improves the wear resistance of the surface layer.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other. The device disclosed by the embodiment corresponds to the method disclosed by the embodiment, so that the description is simple, and the relevant points can be referred to the method part for description.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (4)
1. The utility model provides a long-life runner cover for aluminum alloy low pressure casting process, includes the runner cover, its characterized in that, the runner cover inner wall uses the runner cover top layer as the initiating layer, has set gradually heat preservation one and anticorrosive coating, and the skin has set gradually heat preservation two and wearing layer.
2. The long-life sprue bush for the low-pressure casting process of aluminum alloy as claimed in claim 1, wherein the first insulating layer and the second insulating layer are both coated aluminum oxide.
3. The long life sprue bushing for use in the low pressure casting of aluminum alloys of claim 1 wherein said corrosion resistant layer is a tungsten-nickel alloy coated layer.
4. The long life sprue bushing for use in the low pressure casting of aluminum alloys of claim 1 wherein said wear layer is sprayed zirconia.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121166892.4U CN215144606U (en) | 2021-05-26 | 2021-05-26 | Long-service-life sprue bush for aluminum alloy low-pressure casting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121166892.4U CN215144606U (en) | 2021-05-26 | 2021-05-26 | Long-service-life sprue bush for aluminum alloy low-pressure casting process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215144606U true CN215144606U (en) | 2021-12-14 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121166892.4U Active CN215144606U (en) | 2021-05-26 | 2021-05-26 | Long-service-life sprue bush for aluminum alloy low-pressure casting process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215144606U (en) |
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2021
- 2021-05-26 CN CN202121166892.4U patent/CN215144606U/en active Active
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| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Shaoxing Keting New Materials Co.,Ltd. Person in charge of patentsThe principal of patent Document name: Notice of Approval for Restoration of Rights Request |
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| DD01 | Delivery of document by public notice |