CN216073547U - Electric heating mold preheating furnace for glass casting - Google Patents
Electric heating mold preheating furnace for glass casting Download PDFInfo
- Publication number
- CN216073547U CN216073547U CN202122352484.4U CN202122352484U CN216073547U CN 216073547 U CN216073547 U CN 216073547U CN 202122352484 U CN202122352484 U CN 202122352484U CN 216073547 U CN216073547 U CN 216073547U
- Authority
- CN
- China
- Prior art keywords
- mould
- cavity
- mold
- refractory material
- preheating furnace
- 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.)
- Active
Links
Images
Landscapes
- Vertical, Hearth, Or Arc Furnaces (AREA)
Abstract
The utility model discloses an electric heating mold preheating furnace for glass casting, which comprises a refractory material cavity with an opening at the top, wherein the inner wall of the bottom of the refractory material cavity is detachably connected with a plurality of heating elements, and the heating elements are not in contact with the inner wall of the bottom of the refractory material cavity; the top opening of the refractory material cavity is covered with a mold base plate, a plurality of mold laths are placed on the wall surface of the top of the mold base plate, the mold laths are enclosed to form a polygonal structure, the top of the mold base plate is covered with an upper furnace cover, and the upper furnace cover covers the top opening of the refractory material cavity. The die does not need to be moved frequently, is convenient and fast to operate, low in heat loss, energy-saving, environment-friendly and high in economic benefit.
Description
Technical Field
The utility model belongs to the technical field of various glass product experiments, and particularly belongs to an electric heating mold preheating furnace for glass casting.
Background
Currently, most laboratory glass forming methods are as follows: preheating a mould in a muffle furnace in advance, taking out the preheated mould when molten glass is to be cast and molded, and casting the molten glass on the surface of the mould; after the glass formed by adopting the method is annealed, the residual stress is larger; the mold has heat loss in the moving process, the risk of adhering the mold during the glass liquid forming is increased, and the demolding is not easy to occur; in addition, the mold needs to be repeatedly placed and taken out each time molten glass casting is carried out, and the operation is inconvenient. In addition, when the glass is formed, the temperature of the glass liquid can reach 1300-1400 ℃ or even higher, and the temperature of the surface of the mold in contact with the glass liquid also can reach 600-800 ℃, at the moment, if a stainless steel mold is adopted, the mold can be frequently oxidized, the oxide layer of the mold can be adhered to the surface of the glass sample in contact with the mold, and the problem of sample pollution is caused.
Therefore, the problems that the mold needs to be frequently taken out, the operation is inconvenient and the heat loss is serious when the glass liquid is cast at present need to be solved.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides an electric heating mold preheating furnace for glass casting, which solves the problems that the mold needs to be frequently taken out, the operation is inconvenient and the heat loss is serious in the conventional molten glass casting process.
In order to achieve the purpose, the utility model provides the following technical scheme: an electric heating mold preheating furnace for glass casting is characterized by comprising a refractory material cavity with an opening at the top, wherein a plurality of heating elements are detachably connected to the inner wall of the bottom of the refractory material cavity, and the heating elements are not in contact with the inner wall of the bottom of the refractory material cavity;
the top opening of the refractory material cavity is covered with a mold base plate, a plurality of mold laths are placed on the wall surface of the top of the mold base plate, the mold laths are enclosed to form a polygonal structure, the top of the mold base plate is covered with an upper furnace cover, and the upper furnace cover covers the top opening of the refractory material cavity.
Furthermore, a soaking plate is arranged in the inner cavity of the refractory material cavity, and the heating element is positioned between the soaking plate and the inner wall of the bottom of the refractory material cavity.
Furthermore, the top wall surface of the soaking plate and the bottom wall surface of the die bottom plate are spaced by 80-100 mm;
the soaking plate is made of a ball-milling cast iron material or a silicon carbide material.
Furthermore, a heat insulation material is arranged in the inner cavity of the upper furnace cover.
Further, the heat insulation material is alumina fiber cotton.
Further, still include open-top's stainless steel structure, the refractory material cavity cover is established in the inner chamber that the stainless steel constructs, the open-top that the stainless steel constructs and the open-top of refractory material cavity all are located same horizontal plane, upper bell still covers and closes on the open-top that the stainless steel constructs.
Furthermore, the die bottom plate and the die battens are made of ball-milling cast iron.
Furthermore, the temperature control device also comprises a temperature controller, wherein the output end of the temperature controller is connected with the input end of the heating element, and the temperature controller is used for adjusting the temperature of the heating element.
Further, the heating element is a silicon carbide rod.
Furthermore, the surfaces of the die bottom plate and the die battens are smooth and have no air holes.
Compared with the prior art, the utility model has at least the following beneficial effects:
the utility model provides an electric heating mold preheating furnace for glass casting, which is characterized in that a heat storage cavity is formed by a refractory material cavity, a mold can be directly embedded in an opening at the top of the refractory material cavity, the operation is convenient and rapid, and the bottom of the refractory material cavity is provided with a plurality of heating elements, the inner cavity of the whole refractory material cavity can be heated by the heating elements, so that a mold bottom plate and a mold lath can be heated, and a casting mold is embedded in the refractory material cavity for preheating and is uniformly heated; when molten glass is cast, the upper furnace cover on the refractory material cavity is opened, and then casting can be carried out on the mold, so that the heat loss of the mold caused by moving the mold in the traditional casting mode can be effectively avoided; the mould does not need to be frequently moved, is more convenient to operate, low in heat loss, more energy-saving, green and environment-friendly and high in economic benefit.
Further, the soaking plate made of a ball-milling cast iron material or a silicon carbide material is further placed in the refractory material cavity, the bottom plate of the mold can be guaranteed to be heated uniformly, the temperature gradient of each part of glass liquid is reduced, the formed glass block internal stress is small, the heat preservation function is achieved, the heat storage capacity of the refractory material cavity is more excellent, the adhesion of glass can be avoided, the demolding of a glass sample block is facilitated, and a glass sample cannot be polluted.
Furthermore, the interval between soaking plate and the mould bottom plate is 80-100 mm, the heat preservation effect is more excellent, and the mould can be guaranteed to be heated uniformly everywhere.
Furthermore, the inner cavity of the upper furnace cover is internally provided with a heat insulation material, so that the temperature loss in the refractory material cavity can be reduced, and the economic benefit is higher.
Furthermore, the heat insulation material is alumina fiber cotton, and the temperature of the outer side of the upper furnace cover does not exceed 60 ℃ after the refractory material cavity is kept at the constant temperature for 4 hours.
Furthermore, the refractory material cavity is sleeved in the inner cavity of the stainless steel structure, and the stainless steel structure can protect the refractory material cavity from being scratched by the outside, so that the refractory material cavity is protected from being deformed easily, and the safe and reliable operation of the whole preheating furnace is ensured.
Furthermore, the die bottom plate and the die laths are made of ball-milling cast iron, the heat storage capacity is superior to that of stainless steel, the adhesion of glass can be avoided, the glass cannot be polluted, and the forming and demolding of the glass sample block are facilitated. The glass cast and molded by adopting the method has small residual stress after annealing.
Furthermore, the temperature controller can control the temperature of the heating element, so that the heating element is uniformly heated and the temperature is controllable.
Furthermore, the surfaces of the die bottom plate and the die lath are smooth and have no air holes, so that the quality of the glass block is ensured.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic structural view of a mold according to the present invention;
FIG. 3 is a schematic structural view of a temperature controller according to the present invention;
in the drawings: 1-upper furnace cover, 2-mould lath, 3-mould bottom plate, 4-mould, 5-soaking plate, 6-stainless steel structure, 7-heating element, 8-refractory material cavity and 9-temperature controller.
Detailed Description
The utility model is further described with reference to the following figures and detailed description.
As shown in figures 1, 2 and 3, the utility model provides an electric heating mold preheating furnace for glass casting, which is mainly used for preheating a mold for casting molten glass in advance, and the preheating temperature and time are controllable. Embedding the cast mould into a preheating furnace for preheating, and uniformly heating; when molten glass is cast, the upper cover of the preheating furnace is opened, and then the molten glass can be cast on the mold, so that the heat loss of the mold caused by moving the mold in the traditional casting mode can be effectively avoided; the material of the mould is high-temperature ball-milling cast iron, the heat storage capacity is superior to that of stainless steel, the adhesion of glass can be avoided, and the demoulding of the glass sample block is facilitated. The glass cast and molded by adopting the method has small residual stress after annealing.
In the embodiment, in order to solve the problems that in the traditional glass casting process, a mold needs to be frequently moved, the operation is inconvenient, the heat storage capacity of the mold material is poor, the mold material is easy to oxidize, adhere and pollute a sample, the residual stress of a sample block after annealing is large and the like, the utility model provides the electric heating mold preheating furnace for glass casting, which can keep the surface temperature of the mold uniform during casting and effectively reduce the heat loss of the mold; the used mould material has excellent heat storage capacity, can avoid glass adhesion and is beneficial to the forming and demoulding of the glass sample block. The electric heating mold preheating furnace can ensure that all parts of the mold are uniformly heated, and reduce the temperature gradient of all parts of glass liquid, so that the internal stress of the formed glass block is smaller, the temperature is controllable, and the operation is convenient.
Specifically, the utility model comprises a mould 4, a furnace body steel structure, refractory materials, an electric heating control system and a heating element, wherein the two main types are the mould 4, one type of the mould is a mould 4, one set of the mould at least comprises a mould bottom plate 3 and a plurality of mould laths 2, the plurality of mould laths 2 are enclosed to form a polygonal structure, the materials are high-quality high-temperature ball-milling cast iron, the surface is smooth, no air holes exist, and the size can be processed according to actual requirements; wherein, in this embodiment, mould lath 2 is equipped with four, and four mould laths 2 enclose to close and form quadrangle structure, and mould lath 2 is placed on mould bottom plate 3, and adjacent mould lath 2 contacts each other and encloses to close and form quadrangle structure.
Further, the second major type is a preheating furnace body, the furnace body comprises a refractory material cavity 8, an outer layer stainless steel structure 6 and an upper layer furnace cover, and the stainless steel structure of the preheating furnace body can bear the weight of the mold and the glass. The concrete structure is as follows:
main body furnace body: the main furnace body comprises a refractory material cavity 8, the top of the refractory material cavity 8 is opened, the refractory material cavity 8 is sleeved in the cavity of the stainless steel structure 6, the top opening of the refractory material cavity 8 and the top opening of the stainless steel structure 6 are positioned on the same horizontal plane, the upper layer of the furnace body is provided with a mold 4 (which is cast by molten glass) made of high-temperature nodular cast iron, the mold 4 is embedded on the refractory material cavity 8 and the top opening of the stainless steel structure 6, the middle of the refractory material cavity 8 is provided with a cavity with a height difference of 80-100 mm with the upper layer of the mold, the bottom of the cavity is provided with a soaking plate 5 to ensure the heating temperature of the upper layer of the mold and have the heat preservation function, in the embodiment, the soaking plate 5 is a high-temperature nodular cast iron plate, and in another embodiment of the utility model, the soaking plate at the bottom of the refractory material cavity is replaced by a silicon carbide plate;
the refractory material cavity 8 in this embodiment is made of alumina fiber refractory material.
An upper furnace cover: the upper furnace cover 1 covers the top opening of the refractory material cavity 8 and the top opening of the stainless steel structure 6, and the mold 4 is limited in the cavity formed by combining the upper furnace cover 1 and the refractory material cavity 8; the upper furnace cover 1 can be opened and is completely removed from the electric heating mold preheating furnace, in the embodiment, the inner wall of the upper furnace cover 1 is provided with a heat insulation material to ensure that the temperature of the surface of the mold is uniform and accurate, the heat insulation material in the embodiment adopts alumina cellucotton, and after the constant temperature is kept for 4 hours, the temperature of the outer side of the upper furnace cover 1 does not exceed 60 ℃;
heating element: a plurality of heating elements 7 are supported on the inner wall of the bottom of the refractory material cavity 8, the plurality of heating elements 7 are uniformly laid on the inner wall of the bottom of the refractory material cavity 8, and the heating elements 7 are positioned between the soaking plate 5 and the inner wall of the bottom of the refractory material cavity 8; preferably, the heating element 7 is supported between the soaking plate 5 and the inner wall of the bottom of the refractory material cavity 8 through a supporting point or other supporting pieces, so that the heating element 7 is detachably connected, the heating element 7 is not in contact with the soaking plate 5 and the inner wall of the bottom of the refractory material cavity 8, the side wall of the stainless steel structure 6 is detachably connected, the side wall of the stainless steel structure 6 is connected through a bolt, and when the heating element needs to be overhauled, the side wall of the stainless steel structure 6 is detached;
specifically, heating element 7 adopts the carborundum material, and horizontal installation is in the furnace body bottom, and heating element 7 and stainless steel construct and fill with refractory material between 6, and in this embodiment, heating element is the elema, and the elema is placed between the bottom inner wall of soaking plate and refractory material cavity.
An electric heating control system: the output end of the temperature controller 9 is connected with the input end of the heating element 7, the temperature controller 9 is used for adjusting the temperature of the heating element 7, the temperature controller 9 in the embodiment adopts SG series, particularly SG-XL1400, the temperature can be set as required, the control error is not more than 5 ℃, and the temperature difference of different positions of the surface of the die can be ensured not to be more than 10 ℃; the heating rate is adjustable, for example, the temperature can be adjusted within the range of 1 ℃/min to 20 ℃/min; the temperature controller 9 has more than 5 control programs, an operator can automatically program a temperature-raising program and preset date and time, the started program can be selected according to the actual temperature-raising requirement, and a real-time clock system is arranged in the temperature controller.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. An electric heating mold preheating furnace for glass casting is characterized by comprising a refractory material cavity (8) with an opening at the top, wherein a plurality of heating elements (7) are detachably connected to the inner wall of the bottom of the refractory material cavity (8), and the heating elements (7) are not in contact with the inner wall of the bottom of the refractory material cavity (8);
the top opening of refractory material cavity (8) covers has mould bottom plate (3), placed a plurality of mould lath (2) on the top wall of mould bottom plate (3), a plurality of mould lath (2) enclose to close and form polygonal structure, the top of mould bottom plate (3) covers there is upper bell (1), upper bell (1) lid closes on the top opening of refractory material cavity (8).
2. An electrically heated mould preheating furnace for glass casting according to claim 1, characterized in that a soaking plate (5) is placed in the inner cavity of the refractory cavity (8), and the heating element (7) is located between the soaking plate (5) and the bottom inner wall of the refractory cavity (8).
3. The electric heating mold preheating furnace for glass casting according to claim 2, characterized in that the top wall surface of the soaking plate (5) and the bottom wall surface of the mold bottom plate (3) are spaced 80-100 mm apart;
the soaking plate (5) is made of a ball-milling cast iron material or a silicon carbide material.
4. An electrically heated mould preheating furnace for glass casting according to claim 1, characterized in that the inner cavity of the upper furnace cover (1) is provided with heat insulating material.
5. The electrically heated mold preheating furnace for glass casting according to claim 4, wherein the insulating material is alumina fiber cotton.
6. An electrically heated preheating furnace for glass casting as claimed in claim 1, further comprising an open-top stainless steel structure (6), wherein the refractory cavity (8) is sleeved in the inner cavity of the stainless steel structure (6), the open-top of the stainless steel structure (6) and the open-top of the refractory cavity (8) are both located on the same horizontal plane, and the upper furnace cover (1) is further covered on the open-top of the stainless steel structure (6).
7. An electrically heated mould preheating furnace for glass casting according to claim 1, characterized in that the mould base plate (3) and the mould slats (2) are of nodular cast iron.
8. An electrically heated mould preheating furnace for glass casting according to claim 1, characterized by further comprising a temperature controller (9), the output of the temperature controller (9) being connected to the input of the heating element (7), the temperature controller (9) being adapted to regulate the temperature of the heating element (7).
9. An electrically heated mould preheating furnace for glass casting according to claim 1, characterized in that the heating element (7) is a silicon carbide rod.
10. An electrically heated mould preheating furnace for glass casting according to claim 1, characterized in that the surfaces of the mould floor (3) and the mould slats (2) are smooth and pore-free.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122352484.4U CN216073547U (en) | 2021-09-27 | 2021-09-27 | Electric heating mold preheating furnace for glass casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122352484.4U CN216073547U (en) | 2021-09-27 | 2021-09-27 | Electric heating mold preheating furnace for glass casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216073547U true CN216073547U (en) | 2022-03-18 |
Family
ID=80636209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122352484.4U Active CN216073547U (en) | 2021-09-27 | 2021-09-27 | Electric heating mold preheating furnace for glass casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216073547U (en) |
-
2021
- 2021-09-27 CN CN202122352484.4U patent/CN216073547U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110028232B (en) | Crystallizing method and device for microcrystalline glass | |
| KR100811059B1 (en) | System and method for forming glass sheet | |
| CN216073547U (en) | Electric heating mold preheating furnace for glass casting | |
| CN200968773Y (en) | Ingot furnace for preparing polycrystalline silicon | |
| JP2004503459A5 (en) | ||
| US2045716A (en) | Apparatus for casting large glass articles | |
| CN206264386U (en) | A kind of zirconia-corundum refractory brick resin sand sand board processing system | |
| US2257681A (en) | Apparatus for making cellular glass blocks | |
| CN206169274U (en) | Heating heat preservation device of vacuum melting mould for stove | |
| JPS62283876A (en) | Method of burning dough formed article comprising ceramic substance and equipment for carrying out same | |
| CN102617115B (en) | Composition and method for smelting fluorophlogopite ceramic, and fluorophlogopite ceramic prepared from composition | |
| CN1079784C (en) | Arc porcelain pile and manufacture thereof | |
| JP3549430B2 (en) | Low pressure casting equipment | |
| CN215437470U (en) | Insulation can for casting glass | |
| CN217395240U (en) | Improved casting AZS hook brick sand mould | |
| RU2004507C1 (en) | Method and installation for continuous production of decorative facing plates from granulated glass | |
| CN114212977B (en) | Double-heating-cavity high-temperature casting device for preparing quartz glass product | |
| CN221895050U (en) | Annealing equipment for steel castings | |
| CN219788775U (en) | Centralized annealing insulation can for fused brick production | |
| CN103317127A (en) | Device and method of environment-friendly energy-saving adjustable and controllable steel ladles or sand molds | |
| CN111014637A (en) | Carbon-free dry material knotting process for tundish working layer | |
| CN213811707U (en) | Annealing heat preservation device for production of fused zirconia corundum | |
| CN207515511U (en) | A kind of intermediate frequency furnace | |
| CN219746308U (en) | Chute device for producing K418B cast high-temperature master alloy | |
| CN102030553B (en) | Box type heat preservation annealing manner for fused zircon corundum brick |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |