CN204892913U - Take foundry furnace of vacuum stalk - Google Patents
Take foundry furnace of vacuum stalk Download PDFInfo
- Publication number
- CN204892913U CN204892913U CN201520257599.7U CN201520257599U CN204892913U CN 204892913 U CN204892913 U CN 204892913U CN 201520257599 U CN201520257599 U CN 201520257599U CN 204892913 U CN204892913 U CN 204892913U
- Authority
- CN
- China
- Prior art keywords
- silicon nitride
- vacuum
- stalk
- nitride ceramics
- tubular metal
- Prior art date
- 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.)
- Expired - Fee Related
Links
Landscapes
- Crucibles And Fluidized-Bed Furnaces (AREA)
Abstract
The utility model provides a take foundry furnace of vacuum stalk, it includes furnace body and vacuum stalk, the furnace body is equipped with the fire door, the vacuum stalk in the fire door inserts furnace, the vacuum stalk includes the silicon nitride ceramic pipe part of the tubular metal resonator subtotal lower part on upper portion, and the silicon nitride ceramic union coupling portion of the upper end of silicon nitride ceramic pipe part is the annular ring of evagination, and tubular metal resonator part lower extreme is equipped with the tubular metal resonator connecting portion, and silicon nitride ceramic union coupling portion is lived in the cladding of tubular metal resonator connecting portion, tubular metal resonator connecting portion and the unsmooth interlock of silicon nitride ceramic union coupling portion, tubular metal resonator part uses the stainless steel as the main part establishes the vacuum cavity in, through setting up the cooling rate that the vacuum cavity reduces metal liquid in the stalk to tubular metal resonator part and silicon nitride ceramic pipe part are connected in unsmooth interlock structure to the adoption, prevent to produce the bad connection because of coefficient of thermal expansion difference.
Description
Technical field
The utility model relates to a kind of foundry furnace, belongs to Casting Equipment technical field.
Background technology
At present, low pressure casting method extensively applies in casting field, and existing Casting Equipment, comprises body of heater, and body of heater is provided with fire door, and fire door is provided with stalk, has molten metal in body of heater.When casting, stalk upper end connects casting mould, pressurizes, be passed in casting mould, then cool molten metal by stalk in body of heater.In casting process, stalk inner metal liquid often cools very soon, can produce contraction when the molten metal in casting mould solidifies, and when the cooling velocity of stalk inner metal liquid is too fast, and will occur cannot feeding well, and it is bad to produce casting.
Summary of the invention
The purpose of this utility model is to provide a kind of foundry furnace with vacuum stalk, to slow down the cooling velocity of stalk inner metal liquid, prevents that casting is bad.
For achieving the above object, the utility model have employed following technical proposals: a kind of foundry furnace with vacuum stalk, it comprises body of heater and vacuum stalk, body of heater is provided with fire door, vacuum stalk inserts in burner hearth from fire door, described vacuum stalk comprises the metallic pipe portions on top and the silicon nitride ceramics tube portion of bottom, the silicon nitride ceramics pipe jointing part of the upper end of silicon nitride ceramics tube portion is the annular ring of evagination, metallic pipe portions lower end is provided with metal tube connecting portion, metal tube connecting portion envelopes silicon nitride ceramics pipe jointing part, metal tube connecting portion and silicon nitride ceramics pipe jointing part concave-convex clutch, described metallic pipe portions is based on stainless steel, inside establish vacuum chamber.
Further preferably, the inwall of described metallic pipe portions plates one deck platinum layer.
Further preferably, the bottom of silicon nitride ceramics tube portion is closed, and the sidewall of silicon nitride ceramics tube portion lower end is uniformly distributed some through holes.
The utility model reduces the cooling velocity of stalk inner metal liquid by arranging vacuum chamber in stalk, and employing comes connection metal tube portion and silicon nitride ceramics tube portion in concave-convex clutch structure, prevents from producing bad connection because of coefficient of thermal expansion difference.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
1. bodies of heater in figure; 11. fire doors; 2. silicon nitride ceramics tube portion; 21. silicon nitride ceramics pipe jointing parts; 22. through holes; 3. metallic pipe portions; 31. vacuum chambers; 32. metal tube connecting portions; 33. platinum layers.
Detailed description of the invention
As shown in Figure 1, this foundry furnace comprises body of heater 1 and vacuum stalk, body of heater 1 is provided with fire door 11, vacuum stalk inserts in burner hearth from fire door 11, described vacuum stalk comprises the metallic pipe portions 3 on top and the silicon nitride ceramics tube portion 2 of bottom, the silicon nitride ceramics pipe jointing part 21 of the upper end of silicon nitride ceramics tube portion 2 is annular rings of evagination, metallic pipe portions 3 lower end is provided with metal tube connecting portion 32, metal tube connecting portion 32 envelopes silicon nitride ceramics pipe jointing part 21, metal tube connecting portion 32 and silicon nitride ceramics pipe jointing part 21 concave-convex clutch, connection can be made so more tight, avoid the coefficient of thermal expansion of thus silicon nitride ceramics portion part 2 and metallic pipe portions 3 different and come off when colding and heat succeed each other.The upper end of metallic pipe portions 3 is communicated with casting mould.
Described metallic pipe portions 3, based on stainless steel, inside establishes vacuum chamber 31, and vacuum chamber 31 plays good heat-blocking action, slows down the heat loss of pipe inner metal liquid, reduces the cooldown rate of molten metal.
The inwall of described metallic pipe portions 3 plates one deck platinum layer 33, to prevent from being oxidized in vacuum rising liquid pipe cooling procedure after a procedure, increases the access times of vacuum stalk, increase the service life.
The bottom of silicon nitride ceramics tube portion 2 is closed, and the sidewall of silicon nitride ceramics tube portion 2 lower end is uniformly distributed some through holes 22, and during casting, silicon nitride ceramics tube portion 2 lower end is stretched in molten metal, and molten metal is in through hole inflow pipe.
In order to prevent metallic pipe portions 3 to be oxidized, metallic pipe portions 3 is positioned at outside body of heater 1.
Claims (3)
1. the foundry furnace with vacuum stalk, it comprises body of heater and vacuum stalk, body of heater is provided with fire door, vacuum stalk inserts in burner hearth from fire door, described vacuum stalk comprises the metallic pipe portions on top and the silicon nitride ceramics tube portion of bottom, it is characterized in that, the silicon nitride ceramics pipe jointing part of the upper end of silicon nitride ceramics tube portion is the annular ring of evagination, metallic pipe portions lower end is provided with metal tube connecting portion, metal tube connecting portion envelopes silicon nitride ceramics pipe jointing part, metal tube connecting portion and silicon nitride ceramics pipe jointing part concave-convex clutch, described metallic pipe portions is based on stainless steel, inside establish vacuum chamber.
2. a kind of foundry furnace with vacuum stalk according to claim 1, is characterized in that, the inwall of described metallic pipe portions plates one deck platinum layer.
3. a kind of foundry furnace with vacuum stalk according to claim 1, is characterized in that, the bottom of silicon nitride ceramics tube portion is closed, and the sidewall of silicon nitride ceramics tube portion lower end is uniformly distributed some through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520257599.7U CN204892913U (en) | 2015-04-27 | 2015-04-27 | Take foundry furnace of vacuum stalk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520257599.7U CN204892913U (en) | 2015-04-27 | 2015-04-27 | Take foundry furnace of vacuum stalk |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204892913U true CN204892913U (en) | 2015-12-23 |
Family
ID=54915127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520257599.7U Expired - Fee Related CN204892913U (en) | 2015-04-27 | 2015-04-27 | Take foundry furnace of vacuum stalk |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204892913U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689032A (en) * | 2016-04-25 | 2016-06-22 | 苏州普京真空技术有限公司 | Combined insulating crucible |
| CN112077279A (en) * | 2020-09-14 | 2020-12-15 | 含山县承力铸造厂 | Improved generation foundry furnace |
| CN114719612A (en) * | 2022-04-08 | 2022-07-08 | 浙江万丰精密制造有限公司 | Furnace cover plate mechanism provided with composite liquid lifting pipe |
| CN114799130A (en) * | 2022-04-08 | 2022-07-29 | 浙江万丰精密制造有限公司 | Composite liquid lifting pipe |
-
2015
- 2015-04-27 CN CN201520257599.7U patent/CN204892913U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105689032A (en) * | 2016-04-25 | 2016-06-22 | 苏州普京真空技术有限公司 | Combined insulating crucible |
| CN112077279A (en) * | 2020-09-14 | 2020-12-15 | 含山县承力铸造厂 | Improved generation foundry furnace |
| CN114719612A (en) * | 2022-04-08 | 2022-07-08 | 浙江万丰精密制造有限公司 | Furnace cover plate mechanism provided with composite liquid lifting pipe |
| CN114799130A (en) * | 2022-04-08 | 2022-07-29 | 浙江万丰精密制造有限公司 | Composite liquid lifting pipe |
| CN114719612B (en) * | 2022-04-08 | 2023-02-03 | 浙江万丰精密制造有限公司 | Furnace cover plate mechanism provided with composite liquid lifting pipe |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204892913U (en) | Take foundry furnace of vacuum stalk | |
| WO2016004833A1 (en) | Casting process for preventing sand from sticking onto structural hole part in solid casting | |
| CN109093098A (en) | A kind of magnesium alloy complexity enclosed type core method for exhausting | |
| CN106378456A (en) | Rapid densifying method for powder high-temperature alloy component | |
| CN105234353A (en) | Casting process for pipeline portion of casting with long and thin pipeline | |
| CN101612659B (en) | Liquid-lifting pipe for copper alloy reverse gravity casting | |
| CN104403694B (en) | Liquid-state continuous slag discharge device and slag discharge method of fixed bed gasification furnace | |
| CN101439399B (en) | Horizontal casting method for ultralong cast holes of cast steel and iron casting | |
| CN105087968A (en) | Optimized production method for producing aluminum alloy casting through vacuum melting and casting | |
| CN104959574B (en) | A kind of low pressure cast steel stalk and preparation method thereof | |
| CN113828735B (en) | Pouring system and investment casting process of high-temperature alloy elbow | |
| CN104707973A (en) | Bi-metal reinforcement cooling plate production method of internally installing copper pipe in copper matrix | |
| CN201960126U (en) | Built-in air-permeable brick formed by blowing argon at bottom of steel ladle | |
| CN202246739U (en) | Steel structure liner for dip pipe of RH refining furnace | |
| CN106424654B (en) | Lift tube for low-pressure casting of heat-resistant alloy and manufacturing mold and manufacturing method thereof | |
| CN103611921A (en) | Slag skimmer production method | |
| CN104827004A (en) | Inner core rod assembly used for continuous casting of large-diameter copper tube | |
| CN212264468U (en) | Heat-preservation flow-dredging middle injection pipe | |
| CN211539441U (en) | Novel liquid lifting pipe | |
| CN203238147U (en) | Sealing mechanism of glass melting furnace peephole | |
| CN104707974A (en) | Method for producing double-metal reinforced cooling wall of copper base body with steel pipe internally arranged | |
| CN203437613U (en) | Mold for centrifugally casting flange | |
| CN204830854U (en) | Online lower cone with alloy heating furnace | |
| CN106270397B (en) | No pipe laying pours production technology, the mold core for production technology and the cast obtained of copper-casting water jacket | |
| CN104942233A (en) | Heating and thermal insulating pouring cup and manufacturing method thereof |
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: 20151223 Termination date: 20210427 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |