CN110922039A - Annealing furnace heating device for producing liquid crystal glass - Google Patents
Annealing furnace heating device for producing liquid crystal glass Download PDFInfo
- Publication number
- CN110922039A CN110922039A CN201911243279.5A CN201911243279A CN110922039A CN 110922039 A CN110922039 A CN 110922039A CN 201911243279 A CN201911243279 A CN 201911243279A CN 110922039 A CN110922039 A CN 110922039A
- Authority
- CN
- China
- Prior art keywords
- furnace
- hole
- wire
- base
- liquid crystal
- 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.)
- Pending
Links
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Furnace Details (AREA)
Abstract
The invention discloses an annealing furnace heating device for producing liquid crystal glass, which comprises a base and a heat insulation brick fixed on the bottom surface of the base; one side of the furnace plate is fixed on the heat insulation brick, the other side of the furnace plate is provided with a plurality of grooves, and the furnace wires are fixedly arranged in the grooves; a plurality of wire holders are fixed in the base, and two ends of the furnace wire are connected to the wire holders; the wire holder comprises a wiring porcelain holder, a first wiring terminal fixed on the wiring porcelain holder and a second wiring terminal fixed on the first wiring terminal. When in use, the temperature control device is embedded on the furnace body and is tightly attached to the furnace body, so that the stability of a temperature field in the furnace body can be ensured; the furnace wire is fixed in the furnace plate by arranging the furnace plate with the groove, and the temperature in the furnace can be freely adjusted by adjusting the power of the furnace wire, so that the temperature can be controlled; through set up the through-hole that has heavy platform structure on wiring porcelain seat, ensure that the screw does not contact with metal base, effectively avoid short circuit, electric shock, effectively improved the security of using.
Description
Technical Field
The invention belongs to the field of liquid crystal glass production equipment, and particularly relates to an annealing furnace heating device for producing liquid crystal glass.
Background
In the production process of liquid crystal glass, an annealing furnace is needed, and a heating device of the annealing furnace in the prior art has the disadvantages of complex structure, relatively complex manufacturing process, high cost and untight connection with a furnace body, so that the stability of a temperature field in the furnace body of the annealing furnace cannot be ensured.
Disclosure of Invention
The invention aims to provide a heating device of an annealing furnace for producing liquid crystal glass, which solves the problems in the prior art.
In order to achieve the purpose, the invention adopts the following technical scheme:
a heating device of an annealing furnace for producing liquid crystal glass comprises a base and a heat insulation brick fixed on the bottom surface of the base; one side of the furnace plate is fixed on the heat insulation brick, the other side of the furnace plate is provided with a plurality of grooves, and the furnace wires are fixedly arranged in the grooves; a plurality of wire holders are fixed in the base, and two ends of the furnace wire are connected to the wire holders; the wire holder comprises a wiring porcelain holder, a first wiring terminal fixed on the wiring porcelain holder and a second wiring terminal fixed on the first wiring terminal.
Furthermore, a first through hole is formed in the wiring porcelain seat; the upper part of the first connecting terminal is a vertical plate, the lower part of the first connecting terminal is a transverse plate, a fourth through hole is formed in the transverse plate, and a fifth through hole is formed in the vertical plate; a sixth through hole matched with the fifth through hole is formed in the second connecting terminal; the first screw penetrates through the fifth through hole and the sixth through hole to fix the second wiring terminal on the first wiring terminal; the second screw rod passes through the first through hole and the fourth through hole to fix the first wiring terminal on the wiring porcelain seat.
Furthermore, the upper part of the first through hole is a circular through hole, and the lower part of the first through hole is a regular hexagonal sinking platform; the diameter of an inscribed circle of the regular hexagonal sinking platform is larger than that of the through hole at the upper part.
Furthermore, the bottom of the base is provided with a threaded hole, the wiring porcelain seat is provided with a second through hole, and the screw rod penetrates through the second through hole to be connected with the threaded hole at the bottom of the base so as to fix the wiring porcelain seat on the base.
Furthermore, the second through hole is a circular through hole, the upper part of the second through hole is a circular sinking platform, and the lower part of the second through hole is a through hole; the diameter of the circular sinking platform at the upper part of the second through hole is larger than that of the through hole at the lower part.
Furthermore, a third through hole is formed in the wiring porcelain seat, a base furnace wire through hole is formed in the bottom of the base, a heat insulation brick furnace wire through hole matched with the base furnace wire through hole is formed in the heat insulation brick, and a furnace plate furnace wire through hole matched with the heat insulation brick furnace wire through hole is formed in the furnace plate; the end part of the furnace wire sequentially penetrates through the furnace plate furnace wire through hole, the heat insulation brick furnace wire through hole, the base furnace wire through hole and the third through hole and is fixed between the first connecting terminal and the second connecting terminal.
Furthermore, an insulating porcelain bushing is sleeved in the base furnace wire through hole at the bottom of the base.
Furthermore, a handle is fixedly arranged at the edge of the upper part of the base.
Furthermore, a furnace wire fixing hole is formed in the furnace plate, and the high-temperature-resistant thin steel wire penetrates through the furnace wire fixing hole to fix the furnace wire in the groove in the furnace plate.
Furthermore, the edge of the furnace plate is wrapped by stainless steel, the edge of the heat insulation brick is wrapped by stainless steel, the stainless steel edge of the heat insulation brick is welded on the base, and the stainless steel edge of the furnace plate is welded on the stainless steel edge of the heat insulation brick.
The invention has the following beneficial effects:
1. when the annealing furnace heating device for producing the liquid crystal glass is used, the annealing furnace heating device is embedded on the furnace body and is tightly attached to the furnace body, so that the stability of a temperature field in the furnace body can be ensured;
2. according to the annealing furnace heating device for producing the liquid crystal glass, the furnace wire is fixed in the furnace plate through the furnace plate with the groove, and the temperature in the furnace can be freely adjusted through adjusting the power of the furnace wire, so that the temperature can be controlled;
3. according to the wire holder of the annealing furnace heating device for producing the liquid crystal glass, the through hole with the sinking platform structure is arranged on the wire connection porcelain holder, so that the screw is prevented from contacting with the metal base, the possibility of short circuit and electric shock is effectively avoided, and the use safety is greatly improved;
4. the annealing furnace heating device for producing the liquid crystal glass has simple structure and easy manufacture, and is beneficial to large-scale popularization and application.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic view showing the construction of a heating apparatus of an annealing furnace for producing liquid crystal glass according to the present invention;
FIG. 2 is a schematic view of the construction of the base of the heating apparatus of the annealing furnace for producing liquid crystal glass according to the present invention;
FIG. 3 is a schematic view showing the construction of an insulating brick of the heating apparatus of an annealing furnace for producing liquid crystal glass according to the present invention;
FIG. 4 is a schematic view of the construction of the furnace pan of the heating apparatus of the lehr for producing liquid crystal glass according to the present invention;
FIG. 5 is a schematic view showing a groove structure of a hob of a heating device of an annealing furnace for producing liquid crystal glass according to the present invention;
FIG. 6 is a schematic view showing a wire structure of a heating apparatus of an annealing furnace for producing liquid crystal glass according to the present invention;
FIG. 7 is a schematic view showing the structure of a wire holder of the heating apparatus for an annealing furnace for producing liquid crystal glass according to the present invention;
FIG. 8 is a view showing the upper structure of a porcelain socket for a wire of a heating apparatus of an annealing furnace for producing liquid crystal glass according to the present invention;
FIG. 9 is a lower structural view of a porcelain socket for a wire of a heating apparatus of an annealing furnace for producing liquid crystal glass according to the present invention;
FIG. 10 is a view showing the construction of a first terminal of a heating apparatus of an annealing furnace for producing liquid crystal glass according to the present invention;
FIG. 11 is a view showing the construction of a second terminal of the heating apparatus of an annealing furnace for producing liquid crystal glass according to the present invention;
FIG. 12 is a view showing the structure of an insulating porcelain bushing of a heating apparatus of an annealing furnace for producing liquid crystal glass according to the present invention;
FIG. 13 is a schematic view showing the installation of a heating apparatus of an annealing furnace for producing liquid crystal glass according to the present invention;
wherein: the furnace comprises a base, a heat insulation brick, a furnace plate, a groove 31, a furnace wire fixing hole 32, a furnace wire 4, a wire holder 5, a wire connection ceramic holder 51, a first wire connection terminal 52, a second wire connection terminal 53, a first through hole 511, a second through hole 512, a third through hole 513, a fourth through hole 521, a fifth through hole 522, a sixth through hole 531, a first screw rod 6, a second screw rod 7, an insulating ceramic sleeve 8 and a handle 9.
Detailed Description
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
The following detailed description is exemplary in nature and is intended to provide further details of the invention. Unless otherwise defined, all technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of exemplary embodiments according to the invention.
As shown in figures 1, 4 and 5, the heating device of the annealing furnace for producing the liquid crystal glass comprises a base 1 and an insulating brick 2 fixed on the bottom surface of the base 1; one side of the furnace plate 3 is fixed on the heat insulation brick 2, the other side is provided with a plurality of grooves 31, and the furnace wire 4 is fixedly arranged in the grooves 31; a plurality of wire holders 5 are fixed in the base 1, and two ends of the furnace wire 4 are connected to the wire holders 5; the wire holder 5 comprises a wire connection porcelain holder 51, a first wire connection terminal 52 fixed on the wire connection porcelain holder 51, and a second wire connection terminal 53 fixed on the first wire connection terminal 52. The edge of the upper part of the base 1 is fixedly provided with a handle 9. The furnace plate 3 is also provided with furnace wire fixing holes, the high-temperature-resistant thin steel wires penetrate through the furnace wire fixing holes to fix the furnace wires 4 in the grooves 31 on the furnace plate 3, the furnace wire fixing holes on the back of the furnace plate 3 are plugged tightly by clay made of alumina powder, and the clay is integrated with the furnace plate 3 after being dried.
As shown in fig. 6, 9 and 10, the connection porcelain seat 51 is provided with a first through hole 511; the upper part of the first connecting terminal 52 is a vertical plate, the lower part is a transverse plate, a fourth through hole 521 is arranged on the transverse plate, and a fifth through hole 522 is arranged on the vertical plate; the second connection terminal 53 is provided with a sixth through hole 531 matched with the fifth through hole 522; the first screw 6 passes through the fifth through hole 522 and the sixth through hole 531 to fix the second connection terminal 53 on the first connection terminal 52; the second screw 7 passes through the first through hole 511 and the fourth through hole 521 to fix the first connection terminal 52 to the connection porcelain seat 51. The bottom of the base 1 is provided with a threaded hole, and the wiring porcelain seat 51 is provided with a second through hole 512; the screw rod passes through the second through hole 512 to be connected with the threaded hole at the bottom of the base 1, and the wiring porcelain seat 51 is fixed on the base 1.
As shown in fig. 7 and 8, the upper portion of the first through hole 511 is a circular through hole, and the lower portion thereof is a regular hexagonal sinking platform; the diameter of the inscribed circle of the regular hexagonal sinking platform is larger than that of the through hole at the upper part, and the hexagonal end of the second screw 7 is completely sunk into the hexagonal sinking platform without contacting the base 1, so that electric shock is avoided. The second through hole 512 is a circular through hole and is divided into an upper part and a lower part, the upper part is a circular sinking platform, the diameter of the circular sinking platform at the upper part of the second through hole 512 is larger than that of the through hole at the lower part, a screw penetrates through the second through hole to fix the wiring porcelain seat 51 on the base 1, and the end part of the screw can completely sink into the circular sinking platform.
A third through hole 513 is formed in the wiring ceramic base 51, a base furnace wire through hole is formed in the bottom of the base 1, a heat insulation brick furnace wire through hole matched with the base furnace wire through hole is formed in the heat insulation brick 2, and a furnace plate furnace wire through hole matched with the heat insulation brick furnace wire through hole is formed in the furnace plate 3; the end of the furnace wire 4 passes through the furnace plate furnace wire through hole, the heat insulation brick furnace wire through hole, the base furnace wire through hole and the third through hole 513 in sequence and is fixed between the first connecting terminal 52 and the second connecting terminal 53.
And an insulating porcelain bushing 8 is sleeved in the base furnace wire through hole at the bottom of the base 1. The edge of the furnace plate 3 is stainless steel covered edge, the edge of the heat insulation brick 2 is stainless steel covered edge, the stainless steel covered edge of the heat insulation brick 2 is welded on the base 1, and the stainless steel covered edge of the furnace plate 3 is welded on the stainless steel covered edge of the heat insulation brick 2.
The base 1 is formed by bending and welding stainless steel plates, in order to ensure that the heater base is prevented from deforming and is not too heavy under a high-temperature environment, the preferred stainless steel plates are high-temperature-resistant stainless steel, the thickness is 5-6mm, the heat insulation brick 2 is made of light mullite, the overall dimension is cut by purchased mullite standard bricks according to the design dimension of a drawing, the heat preservation coefficient is larger than 2.0W/m.k, the furnace disc 3 is made of α alumina, the content of the alumina is larger than 97%, the furnace disc 3 has good insulativity and cold and heat impact resistance, an edge-covered groove is reserved on the edge, the edge is covered by a stainless steel plate, the furnace wire 4 is made of a specially-made iron-chromium-aluminum heating wire, the connection ceramic base 51 is made of 99 porcelain, the first connection ceramic base has good insulativity, the first connection terminal 52 and the second connection terminal 53 are made of brass, the first connection terminal 52 and the second connection terminal 53 are fixed on the connection ceramic base 51 through a first screw rod of stainless steel, and particularly the connection ceramic base 51 is fixed on the connection ceramic base 51 before the connection ceramic base 51 and the connection terminal 52 are.
It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of or equivalence to the invention are intended to be embraced therein.
Claims (10)
1. The annealing furnace heating device for producing the liquid crystal glass is characterized by comprising a base (1) and a heat insulation brick (2) fixed on the bottom surface of the base (1); one side of the furnace plate (3) is fixed on the heat insulation brick (2), the other side is provided with a plurality of grooves (31), and the furnace wire (4) is fixedly arranged in the grooves (31); a plurality of wire holders (5) are fixed in the base (1), and two ends of the furnace wire (4) are connected to the wire holders (5);
the wire holder (5) comprises a wiring porcelain holder (51), a first wiring terminal (52) fixed on the wiring porcelain holder (51), and a second wiring terminal (53) fixed on the first wiring terminal (52).
2. The heating apparatus of an annealing furnace for producing liquid crystal glass according to claim 1, characterized in that said wiring porcelain base (51) is provided with a first through hole (511); the upper part of the first connecting terminal (52) is a vertical plate, the lower part of the first connecting terminal is a transverse plate, a fourth through hole (521) is formed in the transverse plate, and a fifth through hole (522) is formed in the vertical plate; a sixth through hole (531) matched with the fifth through hole (522) is formed in the second connecting terminal (53); the first screw (6) penetrates through the fifth through hole (522) and the sixth through hole (531) to fix the second wiring terminal (53) on the first wiring terminal (52); the second screw (7) penetrates through the first through hole (511) and the fourth through hole (521) to fix the first wiring terminal (52) on the wiring porcelain seat (51).
3. The heating apparatus of an annealing furnace for producing liquid crystal glass according to claim 2, characterized in that the first through hole (511) is a circular through hole at the upper part and a regular hexagonal sinking platform at the lower part; the diameter of an inscribed circle of the regular hexagonal sinking platform is larger than that of the through hole at the upper part.
4. The heating device of the annealing furnace for producing the liquid crystal glass according to the claim 1, characterized in that the bottom of the base (1) is provided with a threaded hole, the wiring porcelain seat (51) is provided with a second through hole (512), the screw rod passes through the second through hole (512) to be connected with the threaded hole at the bottom of the base (1), and the wiring porcelain seat (51) is fixed on the base (1).
5. The heating apparatus of an annealing furnace for producing liquid crystal glass according to claim 4, wherein said second through hole (512) is a circular through hole, the upper portion is a circular sinking platform, and the lower portion is a through hole; the diameter of the circular sinking platform at the upper part of the second through hole (512) is larger than that of the through hole at the lower part.
6. The heating device of the annealing furnace for producing the liquid crystal glass according to claim 1, characterized in that the wiring ceramic base (51) is provided with a third through hole (513), the bottom of the base (1) is provided with a base furnace wire through hole, the heat insulation brick (2) is provided with a heat insulation brick furnace wire through hole matched with the base furnace wire through hole, and the furnace plate (3) is provided with a furnace plate furnace wire through hole matched with the heat insulation brick furnace wire through hole; the end part of the furnace wire (4) sequentially passes through the furnace plate furnace wire through hole, the heat insulation brick furnace wire through hole, the base furnace wire through hole and a third through hole (513) on the porcelain seat (51) and is fixed between the first connecting terminal (52) and the second connecting terminal (53).
7. The heating device of the annealing furnace for producing the liquid crystal glass according to the claim 6, characterized in that the base furnace wire through hole at the bottom of the base (1) is sleeved with an insulating porcelain bushing (8).
8. The lehr heating apparatus for producing liquid crystal glass according to claim 1 wherein a handle (9) is fixedly mounted at the edge of the upper portion of the base (1).
9. The heating device of an annealing furnace for producing liquid crystal glass according to claim 1, characterized in that the furnace tray (3) is further provided with a furnace wire fixing hole (32), and the high temperature resistant thin steel wire passes through the furnace wire fixing hole (32) to fix the furnace wire (4) in the groove (31) on the furnace tray (3).
10. The heating device of an annealing furnace for producing liquid crystal glass according to claim 1, characterized in that the edge of the furnace pan (3) is covered with stainless steel, the edge of the insulating brick (2) is covered with stainless steel, the stainless steel covering edge of the insulating brick (2) is welded on the base (1), and the stainless steel covering edge of the furnace pan (3) is welded on the stainless steel covering edge of the insulating brick (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911243279.5A CN110922039A (en) | 2019-12-06 | 2019-12-06 | Annealing furnace heating device for producing liquid crystal glass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911243279.5A CN110922039A (en) | 2019-12-06 | 2019-12-06 | Annealing furnace heating device for producing liquid crystal glass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110922039A true CN110922039A (en) | 2020-03-27 |
Family
ID=69858296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911243279.5A Pending CN110922039A (en) | 2019-12-06 | 2019-12-06 | Annealing furnace heating device for producing liquid crystal glass |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110922039A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112645568A (en) * | 2020-11-19 | 2021-04-13 | 彩虹（合肥）液晶玻璃有限公司 | TFT-LCD liquid crystal glass production shaping annealing multifunctional heater |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2283808Y (en) * | 1996-12-09 | 1998-06-10 | 张进义 | Civil electric stove with long service life |
| CN1949941A (en) * | 2005-10-11 | 2007-04-18 | 中国科学院物理研究所 | Substrate heater for laser molecular beam epitaxial device |
| CN202785968U (en) * | 2012-07-09 | 2013-03-13 | 彩虹显示器件股份有限公司 | Heater for forming and annealing plate glass |
| CN103281817A (en) * | 2013-06-20 | 2013-09-04 | 张斌 | Radiant-cooker plate capable of being heated on two faces |
| CN203660736U (en) * | 2013-12-23 | 2014-06-18 | 浙江鸿达集团温岭市大丰电机有限公司 | Motor damping housing |
| CN204350327U (en) * | 2015-01-28 | 2015-05-20 | 苏州洛特兰新材料科技有限公司 | Tabular ceramic heater |
| CN206767926U (en) * | 2017-05-02 | 2017-12-19 | 芜湖东旭光电科技有限公司 | Heater and shaping furnace |
| CN207436763U (en) * | 2017-09-07 | 2018-06-01 | 佛山市小鲜互联电器科技有限公司 | Hinge and its electrical equipment |
-
2019
- 2019-12-06 CN CN201911243279.5A patent/CN110922039A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2283808Y (en) * | 1996-12-09 | 1998-06-10 | 张进义 | Civil electric stove with long service life |
| CN1949941A (en) * | 2005-10-11 | 2007-04-18 | 中国科学院物理研究所 | Substrate heater for laser molecular beam epitaxial device |
| CN202785968U (en) * | 2012-07-09 | 2013-03-13 | 彩虹显示器件股份有限公司 | Heater for forming and annealing plate glass |
| CN103281817A (en) * | 2013-06-20 | 2013-09-04 | 张斌 | Radiant-cooker plate capable of being heated on two faces |
| CN203660736U (en) * | 2013-12-23 | 2014-06-18 | 浙江鸿达集团温岭市大丰电机有限公司 | Motor damping housing |
| CN204350327U (en) * | 2015-01-28 | 2015-05-20 | 苏州洛特兰新材料科技有限公司 | Tabular ceramic heater |
| CN206767926U (en) * | 2017-05-02 | 2017-12-19 | 芜湖东旭光电科技有限公司 | Heater and shaping furnace |
| CN207436763U (en) * | 2017-09-07 | 2018-06-01 | 佛山市小鲜互联电器科技有限公司 | Hinge and its electrical equipment |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112645568A (en) * | 2020-11-19 | 2021-04-13 | 彩虹（合肥）液晶玻璃有限公司 | TFT-LCD liquid crystal glass production shaping annealing multifunctional heater |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204579889U (en) | A kind of electronic cigarette heater | |
| CN104674196A (en) | Heating device | |
| CN110922039A (en) | Annealing furnace heating device for producing liquid crystal glass | |
| EP3964092A1 (en) | Heating device for electric heating smoking set and electric heating smoking set | |
| CN202210872U (en) | High-temperature nano infrared electrothermal film heating element | |
| CN103836939A (en) | Novel heating tube for solar cell sintering furnace | |
| CN101984731B (en) | Single-end quartz glass electric heating tube | |
| CN201514104U (en) | Electric pusher furnace for firing cadmium red glaze porcelain | |
| CN104654805A (en) | Quartz resistance tube heating element for vacuum furnace and preparation method thereof | |
| CN206886951U (en) | A kind of novel multi-section heater | |
| CN201908041U (en) | Electric heater on float glass production line | |
| CN209703919U (en) | A kind of novel heat ceramic tile | |
| CN215886805U (en) | Wiring device and annealing furnace heating equipment | |
| CN108505714B (en) | Electric heating ceramic tile with uniform heat transfer | |
| CN207340213U (en) | A kind of quartz electrothermal tube with decrease of noise functions | |
| CN204634071U (en) | A kind of heater | |
| CN216217617U (en) | Utilize hot flat board of square electrothermal tube constitution | |
| CN203421953U (en) | Crystal bar heating furnace | |
| CN201248152Y (en) | Electrical bar for electric melting furnace | |
| CN213266261U (en) | Glass heating device for toughened glass production line | |
| CN201230383Y (en) | Novel electric heating element | |
| CN205005280U (en) | Heating blanket can be cut to flexibility | |
| CN2501277Y (en) | Electrothermic tube | |
| CN218959142U (en) | Super heater wiring fixed support seat for flexible glass production | |
| CN203731506U (en) | Safe and convenient electric heating furnace with capacity of uniform heating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200327 |