CN114197249A - A hot-press setting heating plate for pulp molding production - Google Patents
A hot-press setting heating plate for pulp molding production Download PDFInfo
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- CN114197249A CN114197249A CN202111426064.4A CN202111426064A CN114197249A CN 114197249 A CN114197249 A CN 114197249A CN 202111426064 A CN202111426064 A CN 202111426064A CN 114197249 A CN114197249 A CN 114197249A
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- heat conduction
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 156
- 238000000465 moulding Methods 0.000 title claims abstract description 32
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 30
- 238000007789 sealing Methods 0.000 claims abstract description 14
- 238000000034 method Methods 0.000 claims abstract description 13
- 230000008569 process Effects 0.000 claims abstract description 12
- 238000003466 welding Methods 0.000 claims abstract description 9
- 238000012546 transfer Methods 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 8
- 238000013461 design Methods 0.000 claims description 6
- 238000012545 processing Methods 0.000 abstract description 8
- 238000007493 shaping process Methods 0.000 abstract description 8
- 238000005553 drilling Methods 0.000 abstract description 5
- 238000003672 processing method Methods 0.000 abstract description 4
- 238000001035 drying Methods 0.000 description 6
- 229920001131 Pulp (paper) Polymers 0.000 description 5
- 238000005265 energy consumption Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005485 electric heating Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000007731 hot pressing Methods 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009998 heat setting Methods 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004806 packaging method and process Methods 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J3/00—Manufacture of articles by pressing wet fibre pulp, or papier-mâché, between moulds
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- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Paper (AREA)
Abstract
The invention relates to a hot-press shaping heating plate for pulp molding production, which comprises a mounting groove, a heat conduction channel and a sealing plate, wherein the mounting groove is provided with a heat conduction channel; the heating plate is internally provided with a continuous heat conduction channel parallel to a working plane of the heating plate, the loop of the heat conduction channel is a labyrinth loop, the heat conduction channel is sealed by a sealing plate through a friction welding process, and the heat conduction channel of the heating plate is milled. The heat conduction channel is sealed by a sealing plate through a friction welding process without drilling a deep hole. The inlet section and the outlet section of the heating plate adopt circular channels, and the working section adopts a rounded rectangular channel; the working section adopts a round-corner rectangular channel. The processing method of the heating plate breaks through the processing limitation of the shape of the heat conduction channel of the existing hot-press shaping heating plate, and can realize the processing of the heat conduction channel with a rectangular section and a complex curve. The invention increases the heat exchange area of the heat conduction channel, reduces the flow resistance of the heat conduction oil and increases the heat uniformity of the heating plate; the thermal compensation time is shortened, and the production efficiency is improved.
Description
Technical Field
The invention relates to the field of paper pulp molding, in particular to a hot-press forming heating plate for paper pulp molding production.
Background
With the progress of science and technology and the improvement of social productivity, the pulp molding products with environmental protection property have replaced a large number of traditional plastic products and are widely applied to the field of packaging, such as egg trays, corrugated cartons and the like. And the drying process of the pulp molding product consumes huge energy, so the energy consumption can be greatly reduced and the production cost can be reduced by improving the drying technology. (Muzonhua, Huangzutai, Li Zheng hong, etc.. environmental protection type plant fiber disposable tableware production process and its equipment design are governed by [ J ] forestry machinery and carpentry equipment, 1999(11): 10-12.)
The conventional heating modes of the heating plate are as follows: electric heating, steam heating and heat conducting oil heating. The heating temperature of the electric heating plate is low, and the heating uniformity is poor. Steam heating has a high heating temperature, but consumes a large amount of energy. The heat conducting oil heating plate integrates the advantages of the two heating modes, has the advantages of high heating temperature and good heat uniformity, and is particularly suitable for being used as a heat source in the hot-pressing and shaping process of paper pulp molding. The heat conduction oil is operated in a closed cycle mode in the system, the heat is absorbed by the aluminum heating plate, the medium is cooled and then flows back to the boiler for heating again, and the purpose of heating the aluminum heating plate is achieved in a repeated way. Finally, the heat of the heating plate is tightly attached to the die through the assembly of the body, so that the heat energy of the heating plate is conducted to the die, the die is conducted to the wet blank paper product to be dried and shaped in the die cavity, and the equipment shaping station needs to apply certain pressure to the product to ensure that the wet blank is compacted while the product is quickly dried. (Gechanghua, Wang Ying. a hot press setting heating plate for pulp molding production equipment and its manufacturing method and pulp molding production equipment [ P ]. Shanghai city: CN112127214A,2020-12-25.)
Because the internal diameter of the heat conduction channel of the heating plate used at present is generally 20mm, the heat exchange area is small, the heat exchange efficiency is seriously influenced, the heating efficiency of thick and heavy products is low, and the heat cannot be compensated in time (Lijiayu, Tan Yukai, Mayue, a heat setting heating plate for paper pulp molding production equipment and a production method [ P ]. Beijing: CN104084512A, 2014-10-08.). The heat conduction channel is not reasonably arranged, the heat cannot be fully utilized, and the temperature uniformity of the heating plate is poor. In the processing technique, the processing mode of the heat conduction channel is single, the deep hole drilling and then repair welding or pre-embedded seamless steel tube casting is mostly adopted, the processing difficulty is high, and the heat conduction channel with a rectangular section and a complex curve cannot be processed. In the conventional machining process, the transition position of the linear end is usually a right angle and does not have a transition circular arc in order to facilitate machining. Strong flow impact and large resistance. The heat conduction channel processed by deep hole drilling is easy to be deviated in drilling, the straightness of the processed hole is difficult to guarantee, so that the effective diameter of a transition part of a straight line section is small, and slag is easy to store (Zhao Fang.
Disclosure of Invention
The invention provides a hot-press shaping heating plate for pulp molding production and a processing method thereof, and the structure of a heat conduction channel of the heating plate can shorten the thermal compensation time in the drying process of a pulp molding product. In order to break through the limitation of the section shape and the loop curve of the heat conduction channel of the heating plate and reduce the flow resistance, a new processing method of the heat conduction channel of the heating plate is provided.
The invention is realized by at least one of the following technical schemes.
A hot-press shaping heating plate for pulp molding production comprises a mounting groove, a heat conduction channel and a sealing plate, wherein the heat conduction channel extends in the plane direction of the heating plate and is sealed by the sealing plate; the side surface of the heating plate is provided with a heat conduction channel inlet and outlet, and a heat conduction medium is introduced into the heat conduction channel; the hot plate passes through the mounting groove and closely laminates with the mould, realizes the heat transfer between hot plate and the mould.
Preferably, the heat conducting channel of the heating plate is milled.
Preferably, the path of the heat conduction channel is a smooth continuous curve, and a transition fillet design is adopted at the connection position of the straight line sections, so that the flow resistance in the circulation process of the heat conduction oil is reduced.
Preferably, the path of the heat conduction channel is a smooth continuous curve, the loop is arranged in a labyrinth manner, and heat conduction oil flows in from one side close to the edge of the heating plate, gradually flows towards the center along the edge of the heating plate and then flows out from one side close to the edge of the heating plate.
Preferably, the heat conducting channel is sealed by a friction welding process using a sealing plate.
Preferably, the mounting groove is located at an edge of a working plane of the heating plate.
Preferably, the diameter of the section of the inlet section of the heating plate is about 30-40 mm, the size of the section of the working section is 25-35 mm multiplied by 45-55 mm, and the size of the fillet of the rectangular section is 3-6 mm.
Preferably, the heating plate is closely attached to the mold through a bolt and a mounting groove.
Preferably, the heat conducting medium is heat conducting oil, and has the advantages of high heating temperature and good heat uniformity.
Preferably, the inlet section and the outlet section of the heating plate adopt circular channels.
Preferably, the heat conducting oil pipe is connected with the inlet and the outlet of the heating plate through the mounting hole and the guide pillar pin hole.
Preferably, the air suction holes are formed in the middle of the upper heating plate, the diameter of the air suction holes is about 25-30 mm, and the steam exhaust holes are formed in the positions, through which heat transfer oil of the lower heating plate does not flow, of the lower heating plate, the diameter of the steam exhaust holes is 8-12 mm, and the steam exhaust holes are uniformly distributed.
Compared with the prior art, the invention has the beneficial effects that:
the invention increases the heat exchange area of the heat conduction channel, namely improves the heating power of the heating plate, reduces the flow resistance of the heat conduction oil, namely reduces the heating energy consumption, greatly shortens the thermal compensation time and improves the production efficiency. The processing technology of the invention can realize the processing of the heat conduction channel with the rectangular section and the complex curve, and reduces the processing difficulty. The path of the heat conduction channel is a smooth continuous curve, and a transition fillet design is adopted at the connection position of the straight line sections, so that the flow resistance in the circulation process of the heat conduction oil is reduced, and the energy consumption is reduced.
Drawings
FIG. 1 is a schematic perspective view of a heat press-molding upper heating plate for a pulp molding production apparatus according to the present invention;
FIG. 2 is a front view of a heat press setting upper heating plate for a pulp molding production apparatus according to the present invention;
FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;
FIG. 4 is a schematic perspective view of a lower heating plate for a pulp molding production apparatus according to the present invention;
FIG. 5 is a front view of a heat press-setting lower heating plate for a pulp molding production apparatus according to the present invention;
FIG. 6 is a cross-sectional view B-B of FIG. 5;
in the figure: 1-upper heating plate; 11-upper heating plate heat conduction channel; 111-upper heater plate channel inlet; 112-upper heating plate channel outlet; 12-mounting grooves for upper heating plates; 13-a suction hole; 14-locking holes of the upper heating plate; 15-mounting holes of heat conducting oil pipes of the upper heating plate; 16-upper heating plate guide post pin holes; 2-lower heating plate; 21-lower heating plate heat conduction channel; 211-lower heating plate channel inlet; 212-lower plate channel outlet; 22-lower heating plate mounting groove; 23-steam exhaust holes; 24-lower heating plate locking holes; 25-lower heating plate heat conduction oil pipe mounting holes; 26-lower heating plate guide post pin holes; 3-sealing the plate.
Detailed Description
In order to make the objects and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and examples.
Reference will now be made in detail to the present preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to like elements throughout.
In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.
As shown in fig. 1 and 4, a hot press molding heating plate for pulp molding production comprises an upper heating plate 1, a lower heating plate 2, a sealing plate 3, and heat conducting channels of the upper heating plate 1 and the lower heating plate 2. The plane direction of upper heating plate 1, lower heating plate 2 extends all to have the heat conduction passageway, the heat conduction passageway route is smooth continuous curve, and the return circuit arranges for the labyrinth, and the conduction oil flows in by being close to heating plate edge one side, flows to the center along the heating plate edge gradually, flows from being close to heating plate edge one side again, and low temperature conduction oil passageway and high temperature conduction oil passageway staggered arrangement have increased the homogeneity of heating plate work surface temperature distribution.
The transition fillet design is adopted at the connection of the straight line sections to reduce the flow resistance in the circulation process of the heat transfer oil, increase the heat transfer effect and reduce the energy consumption caused by pressure loss. The heat conduction channel is sealed by a sealing plate; the side surface of the heating plate is provided with a heat conduction channel inlet and outlet, and a heat conduction medium is introduced into the heat conduction channel; the hot plate passes through the mounting groove and closely laminates with the mould, realizes the heat transfer between hot plate and the mould. And the heat conduction channel of the heating plate is milled.
The working principle of the invention is as follows:
the oil pump passes through oil pipe transport high temperature conduction oil, and oil pipe passes through the screw thread and is connected with the hot plate import, and the conduction oil circulates through the heat conduction passageway in the hot plate, carries the heat to the hot plate through the intensive convection heat transfer of conduction oil in the heat conduction passageway, uses the hot plate and the mould of mounting groove and bolt with the intensification closely laminate, realizes the heat transfer between hot plate and the mould through the heat-conduction effect.
Specifically, as shown in fig. 2 and 3, an upper heating plate heat conduction path 11 extending in a planar direction of the upper heating plate 1 is milled inside the upper heating plate 1, and the upper heating plate heat conduction path 11 is sealed by the sealing plate 3 through a friction welding process.
The side surface of the upper heating plate 1 is provided with a heat conduction oil upper heating plate channel inlet 111 and an upper heating plate channel outlet 112, and heat conduction oil serving as a heat conduction medium is introduced into the upper heating plate heat conduction channel 11.
The heat-conducting oil pipe is connected with an upper heating plate channel inlet 111 and an upper heating plate channel outlet 112 through an upper heating plate heat-conducting oil pipe mounting hole 15 and an upper heating plate guide post pin hole 16.
Guide pin pins are inserted into the guide pin holes 16 of the upper heating plate, 2 threaded holes are drilled in the guide pin pins, the diameter of each threaded hole is the same as that of the mounting pin hole 15 of the heat conduction oil pipe of the upper heating plate, and the flange plate of the heat conduction oil pipe is screwed into the threaded hole in the guide pin through a bolt on the flange plate for connection.
As shown in fig. 5 and 6, a lower heating plate heat conduction channel 21 extending along the plane direction of the lower heating plate 2 is milled inside the lower heating plate 2, the lower heating plate heat conduction channel 21 is sealed by a sealing plate 3 through a friction welding process, the welding quality is good and stable, and heat conduction oil is prevented from leaking.
The side surface of the lower heating plate 2 is provided with a heat conduction oil lower heating plate channel inlet 211 and a lower heating plate channel outlet 212, heat conduction oil serving as a heat conduction medium is introduced into the lower heating plate heat conduction channel 21, and the heat conduction oil pipe is connected with the lower heating plate channel inlet 211 and the lower heating plate channel outlet 212 through a lower heating plate heat conduction oil pipe mounting pin hole 25 and a lower heating plate guide post pin hole 26.
Guide pin pins are inserted into guide pin holes 26 of the lower heating plate for mounting the heat-conducting oil pipe, 2 threaded holes are drilled on the guide pin pins, the diameter of each threaded hole is equivalent to that of a mounting hole 25 of the heat-conducting oil pipe of the lower heating plate, and a flange plate of the heat-conducting oil pipe is screwed into the threaded holes in the guide pin pins through bolts on the flange plate for connection.
The diameter of the section of the inlet section of the heating plate is 38mm, the size of the section of the working section is 30mm multiplied by 55mm, and the size of a fillet of the rectangular section is 3-6 mm, so that the heat transfer area is increased.
The external dimension of the heating plate is 920mm multiplied by 920 mm.
As a preferred embodiment, the rounded dimension of the rectangular section is 5 mm.
As a preferred embodiment, a plurality of mounting grooves (12, 22) are arranged on the periphery of the upper heating plate 1 and the lower heating plate 2. The mounting groove is located the hot plate work plane edge, and the dismantlement of hot plate and mould of being convenient for uses the bolt to be connected with the mould. The mold and the heating plate are sealed through red glue, so that the heat conduction performance is enhanced.
The upper heating plate is fixed with the middle plate through the upper heating plate locking holes 14, and the lower heating plate is fixed with the bottom plate through the lower heating plate locking holes 24. The middle plate and the bottom plate are fixed plates and are connected with the rack.
The air suction holes 13 are located in the middle of the upper heating plate and have the diameter of 30mm, the steam exhaust holes 23 are formed in the positions, where the heat conducting oil of the lower heating plate does not flow, of 8-12 mm, and the steam exhaust holes are evenly distributed.
In a preferred embodiment, the diameter is 10 mm.
Preferably, the heating plate is designed to be square in shape, so that the uniformity of the working surface of the heating plate is enhanced.
The drying and shaping processes of the product are as follows:
and after drying and shaping are completed, the lower heating plate is vacuumized through the steam exhaust holes 23, and water vapor generated in the drying process is discharged. The upper die moves upwards through the gas-liquid pressure cylinder to complete de-molding, the upper die is vacuumized through the air suction holes 13, the dried and shaped product is left on the upper die after the die is separated, a new product is placed in the lower die cavity by the manipulator, and the dried and shaped product is taken away from the upper die.
The sectional sizes of the upper heating plate 1 and the lower heating plate 2 are 30mm x 55mm, which is increased by 31.3% compared with the conventional sectional size.
Specifically, as shown in fig. 3 and 6, it can be seen that the heat conduction channel of the upper heating plate according to the present invention is illustrated, and in one embodiment, the straight line segment of the heat conduction channel is transited by using a rounded corner, so as to reduce the flow resistance of the heat conduction oil.
As a new processing method of the heat conduction channel of the heating plate, the heat conduction channel of the heating plate is milled. The heat conduction channel is sealed by a sealing plate through a friction welding process without drilling a deep hole. The inlet section and the outlet section of the heating plate adopt circular channels, and the working section adopts a rounded rectangular channel, so that the heating plate is conveniently connected with a heat-conducting oil pipe; the working section adopts a round-angle rectangular channel, so that a runner with a transition round angle is convenient to process.
As a preferred embodiment, the heat conduction oil loop of the heat conduction channel is arranged in a labyrinth way, so that the heat conduction oil stays for a long time in the center of the heating plate, and the heat conduction oil with lower temperature and the heat conduction oil with higher temperature are uniformly arranged. The loop arrangement increases the heat uniformity of the heating plate and reduces the heat dissipation loss caused by insufficient heat conduction of the heat conduction oil.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. The utility model provides a hot briquetting hot plate for pulp molding production, includes mounting groove, heat conduction channel, closing plate, its characterized in that: a heat conduction channel extends in the plane direction of the heating plate and is sealed by a sealing plate; the side surface of the heating plate is provided with a heat conduction channel inlet and outlet, and a heat conduction medium is introduced into the heat conduction channel; the hot plate passes through the mounting groove and closely laminates with the mould, realizes the heat transfer between hot plate and the mould.
2. The heat press forming heating plate for pulp molding production according to claim 1, wherein the heat conducting channel of the heating plate is milled.
3. The hot press forming heating plate for pulp molding production according to claim 1, wherein the heat conducting channel path is a smooth continuous curve, and a transition fillet design is adopted at the connection of straight line segments to reduce the flow resistance in the circulation process of heat conducting oil.
4. The heat press forming heating plate for pulp molding production according to claim 1, wherein the heat conduction path is a smooth continuous curve, the loop is a labyrinth arrangement, and the heat conduction oil flows in from the side near the edge of the heating plate, gradually flows towards the center along the edge of the heating plate, and then flows out from the side near the edge of the heating plate.
5. The heat press-setting heating plate for pulp molding production according to claim 1, wherein the heat conduction path is sealed by a friction welding process using a sealing plate.
6. The heat press forming heating plate for pulp molding production according to claim 1, wherein the mounting groove is located at an edge of a working plane of the heating plate.
7. The hot-press forming heating plate for pulp molding production according to claim 1, wherein the diameter of the section of the inlet section of the heating plate is 30-40 mm, and the size of the fillet of the rectangular section is 3-6 mm.
8. The heat press-setting heating plate for pulp molding production according to claim 1, wherein the heating plate is closely attached to a mold by means of bolts and mounting grooves.
9. The hot press forming heating plate for pulp molding production according to claim 1, wherein the heat conducting medium is heat conducting oil.
10. The hot-press forming heating plate for pulp molding production according to any one of claims 1 to 9, wherein the inlet section and the outlet section of the heating plate adopt circular channels, and the working section adopts a rounded rectangular channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111426064.4A CN114197249A (en) | 2021-11-26 | 2021-11-26 | A hot-press setting heating plate for pulp molding production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111426064.4A CN114197249A (en) | 2021-11-26 | 2021-11-26 | A hot-press setting heating plate for pulp molding production |
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| Publication Number | Publication Date |
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| CN114197249A true CN114197249A (en) | 2022-03-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111426064.4A Pending CN114197249A (en) | 2021-11-26 | 2021-11-26 | A hot-press setting heating plate for pulp molding production |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101274403A (en) * | 2008-05-15 | 2008-10-01 | 沈阳化工学院 | A kind of manufacturing process of hot plate for chemical industry |
| CN101549570A (en) * | 2008-04-04 | 2009-10-07 | 库迈思控股股份公司 | Hotplate for workpieces |
| CN102285046A (en) * | 2011-07-11 | 2011-12-21 | 李超 | Heat-conducting vulcanizing machine |
| CN103575144A (en) * | 2013-11-13 | 2014-02-12 | 四川九洲电器集团有限责任公司 | Array type micro channel flat plate type heat pipe |
| CN103781550A (en) * | 2011-07-08 | 2014-05-07 | 维也纳科技大学 | Cooling/heating device |
| CN207452593U (en) * | 2017-10-24 | 2018-06-05 | 佛山华工祥源环保包装有限公司 | A kind of paper pulp model formation machine piping fixing structure |
| US20180187305A1 (en) * | 2017-01-03 | 2018-07-05 | Applied Materials, Inc. | Gas injection apparatus with heating channels |
| CN108362149A (en) * | 2018-02-05 | 2018-08-03 | 厦门大学 | The manufacturing method of micro channel heat exchange plate with multiple dimensioned surface texture featur |
| CN209365322U (en) * | 2018-12-29 | 2019-09-10 | 孙玉 | A kind of PVC wallboard extrusion die cooler-shaper |
-
2021
- 2021-11-26 CN CN202111426064.4A patent/CN114197249A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101549570A (en) * | 2008-04-04 | 2009-10-07 | 库迈思控股股份公司 | Hotplate for workpieces |
| CN101274403A (en) * | 2008-05-15 | 2008-10-01 | 沈阳化工学院 | A kind of manufacturing process of hot plate for chemical industry |
| CN103781550A (en) * | 2011-07-08 | 2014-05-07 | 维也纳科技大学 | Cooling/heating device |
| CN102285046A (en) * | 2011-07-11 | 2011-12-21 | 李超 | Heat-conducting vulcanizing machine |
| CN103575144A (en) * | 2013-11-13 | 2014-02-12 | 四川九洲电器集团有限责任公司 | Array type micro channel flat plate type heat pipe |
| US20180187305A1 (en) * | 2017-01-03 | 2018-07-05 | Applied Materials, Inc. | Gas injection apparatus with heating channels |
| CN207452593U (en) * | 2017-10-24 | 2018-06-05 | 佛山华工祥源环保包装有限公司 | A kind of paper pulp model formation machine piping fixing structure |
| CN108362149A (en) * | 2018-02-05 | 2018-08-03 | 厦门大学 | The manufacturing method of micro channel heat exchange plate with multiple dimensioned surface texture featur |
| CN209365322U (en) * | 2018-12-29 | 2019-09-10 | 孙玉 | A kind of PVC wallboard extrusion die cooler-shaper |
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Application publication date: 20220318 |
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