CN205496547U - High back pressure low pressure casting heat preservation stove - Google Patents
High back pressure low pressure casting heat preservation stove Download PDFInfo
- Publication number
- CN205496547U CN205496547U CN201620318830.3U CN201620318830U CN205496547U CN 205496547 U CN205496547 U CN 205496547U CN 201620318830 U CN201620318830 U CN 201620318830U CN 205496547 U CN205496547 U CN 205496547U
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- flange
- heater
- upper cover
- pressure
- furnace
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Abstract
The utility model provides a high back pressure low pressure casting heat preservation stove, including the furnace body and with this furnace body complex upper cover the side upper portion of furnace body is equipped with reinforced fire door, should reinforced fire door be equipped with the feed door, the furnace body on be equipped with heater installation interface, pressurization hole, piezometer orifice and mounting panel, it is equipped with stalk flange and temperature measurement flange to cover on, the furnace body be equipped with the furnace body inside lining, the upper cover be equipped with the upper cover inside lining, the appearance of furnace body is for having cylindrical at the bottom of the convex arc face, reinforced fire door the drum of flange is had for the front end, the spherical furnace gate of feed door for being equipped with flange, heater installation interface be mounting flange. The shape of this heat preservation stove satisfies pressure vessel's requirement, simultaneously, more adoption flange joint, improved the joint strength and the sealing performance of part to can adapt to higher operating pressure, and have little, the energy -conserving effectual characteristics of heat loss.
Description
Technical field
This utility model relates to metal casting, the high back-pressure low-pressure casting thermal insulation furnace used during being specifically related to a kind of aluminium casting low-pressure casting process.
Background technology
Low pressure casting is to utilize holding furnace internal gas pressure to be from bottom to top filled with in mould by molten metal, is used for filling type and feeding, it is possible to be effectively improved casting quality and product yield.Existing low-pressure casting thermal insulation furnace shell is welded by ordinary carbon steel, and body of heater profile is the obform body of similar ellipse, and charge door is rectangle, and inside has and constituted liner by insulation material and castable refractory, belongs to non-pressure vessel, and operating pressure not can exceed that 0.1MPa.Along with reaching its maturity of cast aluminium technology and being widely used of the fine cast aluminium parts of high-quality, the energy-conserving and environment-protective to product quality and production process require to have higher requirement, and traditional normal pressure heat-insulating stove can not meet the technological requirement of existing casting industry.
Summary of the invention
The purpose of this utility model is for the problems referred to above, improves a kind of high back-pressure low-pressure casting thermal insulation furnace, and this holding furnace disclosure satisfy that higher operating pressure requirement, can be effectively improved quality and the product yield of foundry goods, have the energy-efficient performance of relative good simultaneously.
The technical scheme realizing above-mentioned purpose is: a kind of high back-pressure low-pressure casting thermal insulation furnace, include body of heater and the upper cover coordinated with this body of heater, side surface upper part at described body of heater is provided with feeding mouth, this feeding mouth is equipped with feed door, described body of heater is provided with heater mounting interface, pressurization hole, pressure tap and installing plate, cover on described and be provided with stalk flange and thermometric flange, described body of heater is provided with furnace lining, upper cover liner it is covered with on described, the profile of described body of heater is to have the cylinder at the bottom of convex globoidal, described feeding mouth is the front end cylinder with flange, described feed door is the spherical fire door being provided with adpting flange.
Further, described heater mounting interface is mounting flange.
Further, described furnace lining is that the ceramic fiber paper body of heater tack coat that sets gradually from inside to outside, calcium silicate board with microporous low-temperature insulation layer, insulating brick build soak layer and castable refractory working lining composition by laying bricks or stones.
Further, described upper cover liner is ceramic fiber paper upper cover tack coat, nanometer micropore plate low-temperature insulation layer, knitted fibers felt soak layer and the insulated pouring material high-temperature-resistant layer composition set gradually from inside to outside.
This utility model uses has the cylindrical furnace at the bottom of convex arc, use the feeding mouth structure that the cylinder with adpting flange coordinates with spherical fire door, shape meets the requirement of pressure vessel, simultaneously, more have employed Flange joint, improves bonding strength and the sealing property of parts such that it is able to adapt to higher operating pressure, its operating pressure can reach 0.63MPa, is six times of conventional holding furnace；It addition, compare with existing holding furnace, capacity of the same race, the surface area of this holding furnace is little, and thermal losses is little, good energy-conserving effect.
Accompanying drawing explanation
Fig. 1 is this high back-pressure low-pressure casting thermal insulation furnace front view.
Fig. 2 is the top view of this high back-pressure low-pressure casting thermal insulation furnace.
Fig. 3 is the sectional view of this high back-pressure low-pressure casting thermal insulation furnace.
Detailed description of the invention
In conjunction with accompanying drawing, detailed description of the invention of the present utility model is illustrated.
As shown in Figure 1, Figure 2, this high back-pressure low-pressure casting thermal insulation furnace includes body of heater 1 and the upper cover 2 using heat resisting steel machine-shaping.Body of heater 1 is by columnar sidewall of the furnace body with at the bottom of being welded on the convex globoidal of this sidewall of the furnace body lower end and be welded on the body of heater flange of this sidewall of the furnace body upper end and form.Upper cover 2 is circular, and distributed about have and the bolt hole of body of heater Flange joint.Upper cover 2 assembles encapsulant with body of heater flange connection surface.Side surface upper part acclivitous welding one front end of body of heater 1 is with the cylindrical shape feeding mouth 3 of flange, the feed door 4 coordinated with this feeding mouth 3 is the spherical fire door being provided with adpting flange, is provided with encapsulant between the flange connection surface of feed door 4 and feeding mouth 3.The sidewall of body of heater 1 is provided with heater mounting interface 5, pressurization hole 6, pressure tap 7 and installing plate 8, such as accompanying drawing embodiment, heater mounting interface 5 is designed to mounting flange, is used for installing heating rod, this mounting flange point lateral symmetry is welded on the top of body of heater 1 sidewall, horizontally arranged three of every side.Pressurization hole 6 and pressure tap 7 are the hickey being welded on body of heater 1 sidewall, are used for connecting blowpipe and measuring the joint of furnace pressure.Installing plate 8 is welded on the bottom of body of heater 1, for being connected with lifting and running gear.Upper cover 2 welds stalk flange 9 and thermometric flange 10, is used for stalk and temperature thermocouple are installed.Body of heater 1 is provided with furnace lining 11, and upper cover 2 is provided with upper cover liner 12.
Such as Fig. 3, the furnace lining 11 of this high back-pressure low-pressure casting thermal insulation furnace be set gradually from inside to outside ceramic fiber paper body of heater tack coat 13, calcium silicate board with microporous low-temperature insulation layer 14, soak layer 15 built by laying bricks or stones by insulating brick and castable refractory working lining 16 forms.Ceramic fiber paper and metal have good binding ability, are bonded at inside body of heater 1 with high-temperature agglomerant, can avoid moisture corrosion metals body of heater in stove；Calcium silicate board with microporous has stronger mechanical strength and good heat-insulating property, is suitable for low-temperature insulation；A layer operating temperature height built by laying bricks or stones by insulating brick, is suitable for soak；Castable refractory can bear higher temperature, compact structure, can prevent the erosion of aluminum liquid, is used for taking up aluminum liquid.The upper cover liner 12 of this high back-pressure low-pressure casting thermal insulation furnace is that ceramic fiber paper upper cover tack coat 17, nanometer micropore plate low-temperature insulation layer 18, knitted fibers felt soak layer 19 and the insulated pouring material high-temperature-resistant layer 20 set gradually from inside to outside forms.Ceramic fiber paper high-temperature agglomerant is bonded at inside upper cover 2, has good binding ability with metal top cover, can avoid moisture corrosion metals upper cover in stove；Nanometer micropore plate has extremely strong heat insulating ability, and operating temperature is low, is suitable for low-temperature insulation；Knitted fibers felt has preferable heat insulating ability, and operating temperature is high, and mechanical strength is low, is suitable for noncontact insulation；Insulated pouring material has preferable mechanical strength and heat-resisting quantity, the high temperature of resistance to burner hearth and heating rod hyperthermia radiation.The outer surface of insulated pouring material high-temperature-resistant layer 20 is arranged to upper convex globoidal, constitutes high-temperature burner hearth top.
When this high back-pressure low-pressure casting thermal insulation furnace uses, to be first energized to heater, in-furnace temperature is increased to 750 DEG C-800 DEG C, then, open feed door, add the aluminum liquid handled well.Being installed to by stalk on stalk flange, allow stalk top and the airtight combination of mould, bottom is about 50mm far from bottom.Then, requirement according to casting technique, being passed through dry compressed air from pressurization hole, aluminum liquid, under compressed-air actuated effect, enters in the die cavity of mould along stalk, after die cavity is full of aluminum liquid, continuing to increase pressure, pressure at this moment is mainly used in the feeding of foundry goods, and pressure is the biggest, Shrinkage Porosity defect is the fewest, can significantly improve product quality.After foundry goods cooling, furnace pressure is unloaded and bleeds off, take out workpiece, carry out next circulation.
Claims (4)
- null1. one kind high back-pressure low-pressure casting thermal insulation furnace，Include body of heater (1) and the upper cover (2) coordinated with this body of heater (1)，Side surface upper part at described body of heater (1) is provided with feeding mouth (3)，This feeding mouth (3) is equipped with feed door (4)，Described body of heater (1) is provided with heater mounting interface (5)、Pressurization hole (6)、Pressure tap (7) and installing plate (8)，Described upper cover (2) is provided with stalk flange (9) and thermometric flange (10)，Described body of heater (1) is provided with furnace lining (11)，Described upper cover (2) is provided with upper cover liner (12)，It is characterized in that: the profile of described body of heater (1) is to have the cylinder at the bottom of convex globoidal，Described feeding mouth (3) is the front end cylinder with flange，Described feed door (4) is the spherical fire door being provided with adpting flange.
- High back-pressure low-pressure casting thermal insulation furnace the most according to claim 1, is characterized in that: described heater mounting interface (5) is mounting flange.
- High back-pressure low-pressure casting thermal insulation furnace the most according to claim 1, is characterized in that: described furnace lining (11) is that ceramic fiber paper body of heater tack coat (13) that sets gradually from inside to outside, calcium silicate board with microporous low-temperature insulation layer (14), insulating brick build soak layer (15) and castable refractory working lining (16) composition by laying bricks or stones.
- High back-pressure low-pressure casting thermal insulation furnace the most according to claim 1, is characterized in that: described upper cover liner (12) is ceramic fiber paper upper cover tack coat (17), nanometer micropore plate low-temperature insulation layer (18), knitted fibers felt soak layer (19) and insulated pouring material high-temperature-resistant layer (20) composition set gradually from inside to outside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620318830.3U CN205496547U (en) | 2016-04-18 | 2016-04-18 | High back pressure low pressure casting heat preservation stove |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620318830.3U CN205496547U (en) | 2016-04-18 | 2016-04-18 | High back pressure low pressure casting heat preservation stove |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205496547U true CN205496547U (en) | 2016-08-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620318830.3U Expired - Fee Related CN205496547U (en) | 2016-04-18 | 2016-04-18 | High back pressure low pressure casting heat preservation stove |
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| Country | Link |
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| CN (1) | CN205496547U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108817351A (en) * | 2018-07-13 | 2018-11-16 | 安徽思源三轻智能制造有限公司 | A kind of liquid forging machine holding furnace |
| CN109648067A (en) * | 2017-10-12 | 2019-04-19 | 天津市升发科技股份有限公司 | Casting device in a kind of cast member process |
-
2016
- 2016-04-18 CN CN201620318830.3U patent/CN205496547U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109648067A (en) * | 2017-10-12 | 2019-04-19 | 天津市升发科技股份有限公司 | Casting device in a kind of cast member process |
| CN108817351A (en) * | 2018-07-13 | 2018-11-16 | 安徽思源三轻智能制造有限公司 | A kind of liquid forging machine holding furnace |
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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: 20160824 Termination date: 20190418 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |