CN2339952Y - Compound sintering aluminium-melting crucible - Google Patents
Compound sintering aluminium-melting crucible Download PDFInfo
- Publication number
- CN2339952Y CN2339952Y CN 98242595 CN98242595U CN2339952Y CN 2339952 Y CN2339952 Y CN 2339952Y CN 98242595 CN98242595 CN 98242595 CN 98242595 U CN98242595 U CN 98242595U CN 2339952 Y CN2339952 Y CN 2339952Y
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- crucible
- aluminium
- utility
- coating
- crucibles
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Abstract
The utility model relates to a crucible, particularly a compound sintering aluminium-melting crucible, composed of a metal crucible body and a non-metallic coating. The utility model is characterized in that a layer of mud core sand is sintered and compounded between the inner wall of the crucible body and the coating. The utility model solves the defects that nonmetallic crucibles are easy to damage because of the high brittleness of the nonmetallic crucibles, and metallic crucibles are easy to corrode when the metallic crucibles melt aluminium. The utility model effectively controls the iron content of the melting aluminium, ensures the quality of the melting aluminium, mitigates labor intensity, enhances the use rate of the crucible, and extends the service life of the crucible.
Description
The utility model relates to a kind of crucible, especially a kind of complex sintered aluminum melting crucible.
Aluminum melting crucible is the main auxiliary equipment of die casting industry.Present aluminum melting crucible both domestic and external can be divided into two kinds by material: a kind of is metallic crucible, and a kind of is non-metallic crucible.Nonmetal crucible often is called " graphite crucible ", and its advantage is an iron content prime element not in the liquation, and aluminum product quality is good.Its shortcoming is that fragility is big, fragile, capacity little (can only produce the liquation below 50 liters usually).Metallic crucible then has advantages such as capacity is big, heat transfer is fast, be difficult for oxidation, material is hard, and is not fragile, so adopt metallic crucible mostly.But because aluminium is a kind of active metal, it is bigger to the corrosion of metallic crucible when liquid, thereby causes the sidewall of crucible attenuation on the one hand, even perforation leakage and can not using, and then causes containing in the liquid aluminium irony on the other hand, thereby influences the liquid aluminium quality.In order to solve the corrosion of liquid aluminium to metallic crucible, the normal employing at crucible inwall brushing one deck non-metallic coating isolated liquid aluminium and metallic crucible, but because coating at high temperature easily comes off, so use necessary blowing out in about 24 hours at crucible usually, or replacing crucible, heavily brush one deck impermeable coating after aluminium dross on the crucible inwall is cleared up and to continue to use being bonded in, thereby influence is produced continuously, and the labour intensity that is cut clearly is big, the temperature height, and safety coefficient is low, simultaneously owing to be cut clearly repeatedly, cause sidewall of crucible impaired, influence service life, generally can only use continuously about 20 days.
The purpose of this utility model is to overcome the deficiency of above-mentioned prior art, provides a kind of and can guarantee molten aluminium quality, can reduce labor intensity again, and need not to be cut clearly, use continuously, and the complex sintered aluminum melting crucible that can prolong its service life.
Technical solution of the present utility model is: a kind of complex sintered aluminum melting crucible, have metal crucible body and nonmetallic coating materials, and it is characterized in that: sintered combined one deck loam core sand between crucible body inwall and coating.
The utility model is because according to the complementary characteristics of the superiority-inferiority of metallic crucible and nonmetal crucible, learn from other's strong points to offset one's weaknesses, nonmetallic materials are rationally prepared burden, back sintering is in the metallic crucible inner wall surface, forming a kind of outer wall is that metal, inwall are the compound crucibles of nonmetallic materials, thereby controlled the iron-holder in the molten aluminium effectively, and unit needs clear quarrel, also need not swabbing again in the operation, production safety is convenient, alleviated labour intensity, improved the utilization rate of crucible, through on probation be 50 surplus day, greatly reduce production cost.
The utility model is described in further detail below in conjunction with drawings and Examples.
Fig. 1 is the utility model structural representation.
Present embodiment crucible body 1 is the 2GCrgSi2 steel alloy.The loam core sand 2 that its inwall is made up of nonmetallic materials rational proportions such as quartz sand, bentonite, clays, drying are joined mould burning notes and are formed.High-temperature molten steel is injected in the type molten steel in process of setting and casting mold generation physics and mechanism, line at high temperature takes place and expands in loam core sand 2, between the knot face of 2 in crucible body inwall metal covering and nonmetal loam core sand, form irregular concavo-convex composite surface 3, thereby make sand 2 firm sintering in nonmetal loam core on the inwall of metal crucible body 1.
When the thickness of described nonmetal loam core sand 2 is 12-18mm, its combined strength bination the best.
Inner wall surface at nonmetal loam core sand 2 scribbles one deck impermeable coating 4.Coating 4 usefulness refractory material bauxites, clay and aluminium oxide, aluminium powder are mixed and made in proportion, and its thickness is 2-3mm, oven dry about 100 ℃.
Claims (3)
1. a complex sintered aluminum melting crucible has metal crucible body (1) and nonmetallic coating (4), it is characterized in that: sintered combined one deck loam core sand (2) between crucible body (1) inwall and coating (4).
2. according to claim 1 one each molten aluminium crucible, it is characterized in that: described loam core sand (2) is made up of nonmetallic materials rational proportions such as quartz, bentonite, clays, and its thickness is 12-18mm.
3. according to claim 1 one each molten aluminium crucible, it is characterized in that: described coating (4) is mixed and made in proportion by refractory material bauxite, clay and aluminium oxide, aluminium powder, and its thickness is 2-3mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98242595 CN2339952Y (en) | 1998-11-04 | 1998-11-04 | Compound sintering aluminium-melting crucible |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98242595 CN2339952Y (en) | 1998-11-04 | 1998-11-04 | Compound sintering aluminium-melting crucible |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2339952Y true CN2339952Y (en) | 1999-09-22 |
Family
ID=33989134
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98242595 Expired - Fee Related CN2339952Y (en) | 1998-11-04 | 1998-11-04 | Compound sintering aluminium-melting crucible |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2339952Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102180655A (en) * | 2011-02-16 | 2011-09-14 | 朱晓明 | Crucible and production process thereof |
| CN102477508A (en) * | 2010-11-30 | 2012-05-30 | 上海航天精密机械研究所 | Method for preventing iron increase in ZL205A alloy melting process |
-
1998
- 1998-11-04 CN CN 98242595 patent/CN2339952Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477508A (en) * | 2010-11-30 | 2012-05-30 | 上海航天精密机械研究所 | Method for preventing iron increase in ZL205A alloy melting process |
| CN102180655A (en) * | 2011-02-16 | 2011-09-14 | 朱晓明 | Crucible and production process thereof |
| CN102180655B (en) * | 2011-02-16 | 2012-12-19 | 朱晓明 | Crucible and production process thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |