CN202741711U - Pouring gate heat preservation sleeve of low pressure casting mould - Google Patents
Pouring gate heat preservation sleeve of low pressure casting mould Download PDFInfo
- Publication number
- CN202741711U CN202741711U CN 201220477494 CN201220477494U CN202741711U CN 202741711 U CN202741711 U CN 202741711U CN 201220477494 CN201220477494 CN 201220477494 CN 201220477494 U CN201220477494 U CN 201220477494U CN 202741711 U CN202741711 U CN 202741711U
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- China
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- shell body
- heat preservation
- inner container
- preservation sleeve
- pouring gate
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The utility model provides a pouring gate heat preservation sleeve of a low pressure casting mould. The pouring gate heat preservation sleeve comprises a shell body and an inner container; the shell body is a hollow cylindrical metal shell body, the inner container is arranged in the shell body, a silicon nitride heat preservation sleeve is used as the inner container, and the shape of the inner container is matched with that of the shell body; and the shell body is made of iron or steel. The pouring gate heat preservation sleeve disclosed by the utility model has the beneficial effects that the silicon nitride heat preservation sleeve inner container is arranged to guarantee a good heat preservation effect, and no additional electric heater is additionally arranged for heating and preserving heat, so that the pouring gate heat preservation sleeve is simple in structure, energy-saving and environmental-friendly, meanwhile, the silicon nitride heat preservation sleeve inner container has corrosion resistance and wearing resistance, so that the service life is long, and the situation that the inner container is corroded by casting liquid to be melted into the casting liquid to degrade casting products to wastes due to high impurity content can not occur, so that the cost is reduced.
Description
Technical field
The utility model relates to a kind of muff, especially relates to a kind of low pressure casting die cast gate muff.
Background technology
When casting mould, casting liquid is in the stalk out the time, need to be incubated it through a muff, and then enter and carry out casting in the casting mould, muff in existing technology comprises a quoit, outer surface at described quoit is provided with the temperature that electric heater is kept quoit, guarantee to cast liquid and can not solidify because of turning cold suddenly, products waste exists not only complex structure, and quoit directly directly contacts with casting liquid, under the casting liquid effect of high temperature, metal corrodes easily, causes the part of quoit to be dissolved in the casting liquid, cause impure the exceeding standard of casting piece of moulding and products waste, increase cost; The quoit radiating rate is fast simultaneously, need to heat with electric heater, and not only power consumption is large, cost of idleness, and also heat insulation effect is poor.
Summary of the invention
Problem to be solved in the utility model provides a kind of simple in structure, high insulating effect, strong, the energy-conservation low pressure casting die cast gate muff of decay resistance, especially is fit to production requirement casting piece impurity content and uses when being incubated to casting liquid when relatively lower.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a kind of low pressure casting die cast gate muff comprises shell body and inner bag; Described shell body is the cylindric metal shell body of hollow, and described inner bag is located in the described shell body, and described inner bag is the silicon nitride muff, and the shape of described inner bag and described shell body are complementary.
Further, described shell body is iron shell body or outer steel shell body.
Silicon nitride, chemical formula is Si3N4, is a kind of important structural ceramic material.It is a kind of superhard material, and itself has lubricity, and wear-resistant, is atomic crystal; Anti-oxidant during high temperature, and it can also resist thermal shock, is heated in air more than 1000 ℃, and sharply more sharply heating of cooling can be not cracked yet.
Advantage and the good effect that the utlity model has are: owing to adopt technique scheme, owing to be provided with silicon nitride muff inner bag, high insulating effect, do not need to add again in addition electric heater and carry out heat tracing, not only simple in structure, and energy-conserving and environment-protective, silicon nitride muff inner bag has corrosion resistance and anti-wear performance simultaneously, long service life, inner bag can not be cast corrosion and incorporate that casting causes casting piece in the liquid because impurity content height and products waste reduces cost.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure:
1, inner bag 2, shell body
The specific embodiment
As shown in Figure 1, a kind of low pressure casting die cast gate of the utility model muff comprises shell body 2 and inner bag 1; Described shell body 2 is the cylindric metal shell body of hollow, and described inner bag 1 is located in the described shell body 2, and described inner bag 1 is the silicon nitride muff, and the shape of described inner bag 1 and described shell body 2 are complementary.
Described shell body 2 is iron shell body or outer steel shell body
The course of work of this example: in use, the utility model is arranged on the upper end of stalk, casting liquid is incubated, because silicon nitride muff inner bag 1 high insulating effect is not carried out heat tracing, energy-conserving and environment-protective so do not need to add in addition electric heater again, silicon nitride muff inner bag 1 has corrosion resistance and anti-wear performance simultaneously, long service life, the casting piece impurity content of producing is low, and qualification rate is high.
More than an embodiment of the present utility model is had been described in detail, but described content only is preferred embodiment of the present utility model, can not be considered to be used to limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve etc., all should still belong within the patent covering scope of the present utility model.
Claims (2)
1. a low pressure casting die cast gate muff is characterized in that: comprise shell body and inner bag; Described shell body is the cylindric metal shell body of hollow, and described inner bag is located in the described shell body, and described inner bag is the silicon nitride muff, and the shape of described inner bag and described shell body are complementary.
2. low pressure casting die cast gate muff according to claim 1, it is characterized in that: described shell body is iron shell body or outer steel shell body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220477494 CN202741711U (en) | 2012-09-18 | 2012-09-18 | Pouring gate heat preservation sleeve of low pressure casting mould |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220477494 CN202741711U (en) | 2012-09-18 | 2012-09-18 | Pouring gate heat preservation sleeve of low pressure casting mould |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202741711U true CN202741711U (en) | 2013-02-20 |
Family
ID=47701159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220477494 Expired - Fee Related CN202741711U (en) | 2012-09-18 | 2012-09-18 | Pouring gate heat preservation sleeve of low pressure casting mould |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202741711U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332642A (en) * | 2018-10-17 | 2019-02-15 | 江苏盛航精密制造有限公司 | A kind of automobile engine protection plate mold |
-
2012
- 2012-09-18 CN CN 201220477494 patent/CN202741711U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109332642A (en) * | 2018-10-17 | 2019-02-15 | 江苏盛航精密制造有限公司 | A kind of automobile engine protection plate mold |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130220 Termination date: 20150918 |
|
| EXPY | Termination of patent right or utility model |