CN112959569A - High-pressure nitrogen electromagnetic heating vulcanizing device - Google Patents
High-pressure nitrogen electromagnetic heating vulcanizing device Download PDFInfo
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- CN112959569A CN112959569A CN202110033165.9A CN202110033165A CN112959569A CN 112959569 A CN112959569 A CN 112959569A CN 202110033165 A CN202110033165 A CN 202110033165A CN 112959569 A CN112959569 A CN 112959569A
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- pipeline
- nitrogen
- temperature
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D30/00—Producing pneumatic or solid tyres or parts thereof
- B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
- B29D30/0601—Vulcanising tyres; Vulcanising presses for tyres
- B29D30/0606—Vulcanising moulds not integral with vulcanising presses
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
- B29C2035/046—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames dried air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
- B29C2035/047—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames other than air
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2030/00—Pneumatic or solid tyres or parts thereof
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Oral & Maxillofacial Surgery (AREA)
- Thermal Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
The invention discloses a high-pressure nitrogen electromagnetic heating vulcanizing device, which comprises a vulcanizing mold and a circulating pipeline, wherein nitrogen is filled into the circulating pipeline, a bypass pipeline is communicated between the circulating pipelines, a tire bladder is arranged in the vulcanizing mold, and the circulating pipeline, the tire bladder and the bypass pipeline form a main circulating loop, a circulating heating loop and an exhaust loop; the nitrogen can generate little heat loss in the conveying process, the running efficiency of the system is improved, the energy consumption is saved, the tire vulcanization quality is improved, and finally, the pollution is not generated.
Description
Technical Field
The invention relates to the field of tire vulcanizing equipment, in particular to a high-pressure nitrogen electromagnetic heating vulcanizing device.
Background
At present, high-temperature steam is mostly adopted for heating the temperature and the internal pressure in the tire vulcanizer to provide heat for vulcanizing the tire, but the high-temperature steam is adopted for providing heat, and the mixture of the steam and condensed water after vulcanization can cause the upper part and the lower part of the tire to have upper and lower temperature difference, so that the performance of the tire is finally influenced, the recovery is difficult, the waste heat cannot be well utilized, and a large amount of energy is wasted; pure nitrogen is introduced into the rubber bladder of the inner bladder of the tire for vulcanization, however, the nitrogen used by the rubber bladder has low pressure and small heat capacity, and the nitrogen is cooled greatly after heat exchange and needs to be continuously supplemented and heated, so that the uniformity of the temperature of the nitrogen in the bladder is poor, the quality of the tire is affected, and various performances of the tire are poor; meanwhile, a vulcanization heating system is adopted for the outer part of the tire mold, and the outer side of the mold is mainly coiled with an electromagnetic heating coil for heating, or a plurality of groups of holes are arranged in the inner structure of the mold, and an electromagnetic coil is inserted into the holes for heating the inner part of the mold. Both of these methods increase the structural complexity of the tire outer mold, increase the mold manufacturing difficulty, and reduce the efficiency of the vulcanization process.
Disclosure of Invention
In order to overcome the defects, the invention provides a high-pressure nitrogen electromagnetic heating vulcanizing device.
A high-pressure nitrogen electromagnetic heating vulcanizing device comprises a vulcanizing mold and a circulating pipeline, wherein a tire capsule is arranged in the vulcanizing mold; heating coil plates are arranged on the outer wall of the periphery of the vulcanization mould, and the circulating pipeline is sequentially connected with a tire bladder, a main circulating exhaust valve, a high-pressure Roots blower, a sheath heater and a main circulating intake valve to form a main circulating loop; a high-pressure normal-temperature nitrogen inlet is arranged between the main circulation exhaust valve and the high-pressure Roots blower, bypass pipelines are communicated between the high-pressure normal-temperature nitrogen inlet and the main circulation exhaust valve as well as the main circulation intake valve and the sheath heater, bypass control valves are mounted on the bypass pipelines, and a circulation preheating loop is formed by the high-pressure normal-temperature nitrogen inlet, the high-pressure Roots blower, the sheath heater and the bypass control valves which are connected through the pipelines; a low-pressure normal-temperature nitrogen inlet is arranged between the main circulation air inlet valve and the tire bladder, a low-pressure normal-temperature nitrogen outlet is arranged between the main circulation exhaust valve and the tire bladder, and a drying loop is formed by the low-pressure normal-temperature nitrogen inlet, the tire bladder and the low-pressure normal-temperature nitrogen outlet which are connected through pipelines.
According to a preferable scheme of the invention, temperature sensors are arranged on the heating coil plate and the circulating preheating loop.
According to a preferable scheme of the invention, the low-pressure normal-temperature nitrogen gas exhaust port and the high-pressure normal-temperature nitrogen gas inlet are respectively provided with a pressure display.
According to a preferable scheme of the invention, the input shaft end of the Roots blower is connected with a motor, and the motor is connected with a frequency converter.
The invention has the beneficial effects that: the nitrogen with high temperature and high pressure is adopted to flush the inside of the capsule to replace the original high-pressure steam, and the capsule has the very obvious advantages that:
1. the high-temperature nitrogen is heated by adopting the high-efficiency sheath heater arranged in the loop, so that the high-temperature nitrogen has the advantages of high efficiency, low cost, small occupied area and the like, high-pressure steam remote transmission is not needed, and heat loss in the conveying process does not exist;
2. the high-temperature nitrogen adopts a circulating preheating loop, and the nitrogen preheating is partially overlapped with the system working time, so that the system operation efficiency is improved;
3. high-temperature and high-pressure nitrogen is conveyed and pressurized by a high-temperature-resistant Roots high-pressure fan, and energy consumption can be further saved by adopting modes such as frequency conversion or shutdown when a vulcanization process with less heat is needed in the second section of the system operation.
4. After the heat exchange is carried out in the bladder by the high-temperature and high-pressure nitrogen, no condensed water is generated, no temperature difference is generated in the bladder, and especially no temperature difference is generated at the tire shoulder and the tire bead of the tire, so that the consistency and uniformity of the heating temperature in the bladder are improved, and the tire vulcanization quality is improved;
5. after each working cycle is finished, the high-pressure nitrogen can be directly discharged or recycled, and pollution is avoided.
Drawings
The invention will now be described, by way of example, with reference to the accompanying drawings, in which:
FIG. 1 is a schematic structural diagram of the present invention:
FIG. 2 is a schematic diagram of an exhaust circuit;
FIG. 3 is a schematic diagram of a cyclic preheating circuit;
FIG. 4 is a schematic diagram of a main loop of the cycle;
wherein: the device comprises a vulcanization mould 1, a heating coil plate 2, a temperature sensor 3, a low-pressure normal-temperature nitrogen inlet 4, a main circulation inlet valve 5, a sheath heater 6, a circulation pipeline 7, a Roots blower 8, a frequency converter 9, a high-pressure normal-temperature nitrogen inlet 10, a main circulation exhaust valve 11, a low-pressure normal-temperature nitrogen outlet 12, a pressure sensor 13, a tire bladder 14, a bypass pipeline 16 and a bypass control valve 17.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front", "rear", "both ends", "one end", "the other end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be configured in a specific orientation, and operate, and thus, should not be construed as limiting the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "connected," and the like are to be construed broadly, such as "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; the two components can be directly connected or indirectly connected through an intermediate medium, the two components can be communicated with each other, the fixed connection can be welding, gluing and the like, and the specific meaning of the terms in the invention can be understood by those skilled in the art according to specific situations.
Example 1
As shown in fig. 1-4, a high-pressure nitrogen electromagnetic heating vulcanizing device comprises a vulcanizing mold 1 and a circulating pipeline 7, wherein a tire bladder 14 is arranged in the vulcanizing mold 1.
The heating coil plate 2 is arranged on the outer wall of the periphery of the vulcanizing mould 1; the tire bladder 14 is arranged in the vulcanizing mold 1, and the heating coil plate 2 is wound on the outer wall of the periphery of the vulcanizing mold 1, so that the tire can be vulcanized by heating the heating coil plate 2 to dry the tire; the circulation duct 7 is filled with nitrogen at different stages and at different temperatures and pressures for effecting drying and heating of the tyre bladder 14.
The circulating pipeline 7 is sequentially connected with a tire capsule 14, a main circulating exhaust valve 11, a Roots blower 8, a sheath heater 6 and a main circulating intake valve 5 to form a main circulating loop; the main circulation air inlet valve 5 and the main circulation exhaust valve 11 are arranged to control the opening and closing of the circulation pipeline 7, on one hand, the high-pressure normal-temperature nitrogen enters the tire bladder 14 after being preheated by opening and closing, and on the other hand, the low-pressure normal-temperature nitrogen enters the preheating loop to play a drying role in the drying and preheating stage by closing.
For the embodiment, the main circulation air inlet valve 5 is opened, the main circulation exhaust valve 11 is opened, the low-pressure normal-temperature nitrogen inlet 4 is closed, the low-pressure normal-temperature nitrogen outlet 12 is closed, high-pressure nitrogen is filled from the high-pressure normal-temperature nitrogen inlet 10, and the high-pressure normal-temperature nitrogen is preheated by the Roots blower 8 and the sheath heater 6 and then filled into the tire bladder 14 to perform the vulcanization heating effect on the inner wall of the tire.
Example 2
The device also comprises a bypass pipeline 16, a high-pressure normal-temperature nitrogen gas inlet 10 is arranged on a circulating pipeline between the main circulating exhaust valve 11 and the Roots blower 8, one end of the bypass pipeline 16 is connected to the circulating pipeline between the high-pressure normal-temperature nitrogen gas inlet 10 and the main circulating exhaust valve 11, the other end of the bypass pipeline is connected to the circulating pipeline between the main circulating intake valve 5 and the sheath heater 6, and a bypass control valve 17 is arranged on the bypass pipeline 16; a circulating preheating loop is formed by a high-pressure normal-temperature nitrogen gas inlet 10, a Roots blower 8, a sheath heater 6 and a bypass control valve 17 which are connected through pipelines; a high-pressure normal-temperature nitrogen gas inlet 10, a Roots blower 8, a sheath heater 6 and a bypass pipeline 16 are arranged, and a main circulation loop and a circulation preheating loop are switched by a bypass control valve 17, a main circulation gas inlet valve 5 and a main circulation gas outlet valve 11.
For the embodiment, the main circulation air inlet valve 5 is closed, the main circulation exhaust valve 11 is closed, the bypass control valve 17 is opened, then the high-pressure normal-temperature nitrogen is filled from the high-pressure normal-temperature nitrogen inlet 10, the high-pressure normal-temperature nitrogen passes through the Roots blower 8 and the sheath heater 6 and is preheated, after the filled high-pressure normal-temperature nitrogen reaches the required temperature, the bypass control valve 17 can be closed, and the main circulation air inlet valve 5 and the main circulation exhaust valve 11 are opened and then enter the circulation main loop; at the moment, when the circulating preheating loop works, the drying loop works simultaneously, the working time of the two loop systems is overlapped, and the working efficiency is improved.
Example 3
A low-pressure normal-temperature nitrogen inlet 4 is arranged on a circulating pipeline 7 between the main circulating air inlet valve 5 and the tire bladder 14, a low-pressure normal-temperature nitrogen outlet 12 is arranged on the circulating pipeline 7 between the main circulating air outlet valve 11 and the tire bladder 14, and the low-pressure normal-temperature nitrogen inlet 4, the tire bladder 14 and the low-pressure normal-temperature nitrogen outlet 12 which are connected through pipelines form a drying air outlet loop; the low-pressure normal-temperature nitrogen inlet 4 and the low-pressure normal-temperature nitrogen outlet 12 are arranged to form a drying exhaust loop with a pipeline, so that the tire bladder 14 is shrunk and dried, heat generated when the tire bladder 14 is heated is taken away, and steam can be released from the tire.
For the embodiment, the low-pressure normal-temperature nitrogen inlet 4 is opened, the main-cycle air inlet valve 5 is closed, the main-cycle exhaust valve 11 is closed, and the low-pressure normal-temperature nitrogen outlet 12 is opened, so that the heat of water vapor precipitated after the tire bladder 14 is preheated by the heating coil plate 2 can be taken away by the filled low-pressure normal-temperature nitrogen, the low-pressure normal-temperature nitrogen shrinks, and the tire drying and demolding effects are achieved.
And the heating coil plate 2 and the circulating preheating loop are respectively provided with a temperature sensor 3 which can be used for monitoring the heating temperature in the vulcanizing mold 1 and the temperature of nitrogen in the pipeline in real time.
The low-pressure normal-temperature nitrogen gas exhaust port 12 and the high-pressure normal-temperature nitrogen gas inlet 10 are both provided with a pressure sensor 13; the pressure of the nitrogen in the pipeline can be monitored in real time, and the nitrogen is prevented from influencing the uniformity of the temperature inside the tire bladder 14 due to unstable pressure, so that the quality of the tire is influenced.
The input shaft end of the Roots blower 8 is connected with a motor, the motor is connected with the frequency converter 9, and the energy consumption can be further saved by adopting modes of frequency conversion or shutdown and the like when the vulcanization process with less heat is needed in the second half section of the system operation.
The working principle is as follows: in order to introduce high-temperature nitrogen gas into the bladder, the preheating circulation circuit is first opened by switching the bypass valve and the main circulation valve at the stage of the drying cycle when the tire is taken out and put in. The preheating circulation loop is composed of a Roots blower and a sheath heater, and is used for preheating nitrogen for next vulcanization in an electromagnetic heating mode. The nitrogen preheat temperature in the loop is controlled by a temperature sensor provided in the preheat circulation loop. The nitrogen temperature of the main loop system is controlled by a temperature sensor provided on the circulation loop. In order to keep the system pressure stable after the high-temperature nitrogen in the main loop system is filled into the capsule, the pressure of the high-pressure nitrogen input into the system is adjusted by installing a pressure regulating valve on a nitrogen inlet, so that the pressure of the high-pressure nitrogen is consistent with the system nitrogen pressure of the main loop. In order to reduce the power required for the nitrogen circulation, the diameter of the piping is selected as large as possible when introducing the piping to the existing equipment, thereby reducing the pressure loss. Especially in the second half of the vulcanization engineering which needs less heat, the Roots blower can be stopped.
In light of the foregoing, it is to be understood that various changes and modifications may be made by those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (4)
1. A high-pressure nitrogen electromagnetic heating vulcanizing device comprises a vulcanizing mold (1) and a circulating pipeline (7), wherein a tire bladder (14) is arranged at the center of the vulcanizing mold (1); the method is characterized in that: the heating coil plates (2) are arranged on the outer wall of the periphery of the vulcanizing mold (1), and the circulating pipeline (7) is sequentially connected with the tire capsule (14), the main circulating exhaust valve (11), the high-pressure Roots blower (8), the sheath heater (6) and the main circulating intake valve (5) end to form a main circulating loop;
the device is characterized by further comprising a bypass pipeline (16), a high-pressure normal-temperature nitrogen gas inlet (10) is formed in the circulating pipeline between the main circulating exhaust valve (11) and the high-pressure Roots blower (8), one end of the bypass pipeline (16) is connected to the circulating pipeline between the high-pressure normal-temperature nitrogen gas inlet (10) and the main circulating exhaust valve (11), the other end of the bypass pipeline is connected to the circulating pipeline between the main circulating intake valve (5) and the sheath heater (6), and a bypass control valve (17) is mounted on the bypass pipeline (16); a circulating preheating loop is formed by a high-pressure normal-temperature nitrogen gas inlet (10), a high-pressure Roots blower (8), a sheath heater (6) and a bypass control valve (17) which are connected through pipelines;
a low-pressure normal-temperature nitrogen inlet (4) is arranged on a circulating pipeline (7) between the main circulating air inlet valve (5) and the tire bladder (14), a low-pressure normal-temperature nitrogen outlet (12) is arranged on the circulating pipeline (7) between the main circulating air outlet valve (11) and the tire bladder (14), and a drying loop is formed by the low-pressure normal-temperature nitrogen inlet (4), the tire bladder (14) and the low-pressure normal-temperature nitrogen outlet (12) which are connected through pipelines.
2. The high-pressure nitrogen electromagnetic heating vulcanizing device according to claim 1, characterized in that: and temperature sensors (3) are arranged on the heating coil plate (2) and the circulating preheating loop.
3. The high-pressure nitrogen electromagnetic heating vulcanizing device according to claim 1, characterized in that: and the low-pressure normal-temperature nitrogen gas exhaust port (12) and the high-pressure normal-temperature nitrogen gas inlet (10) are respectively provided with a pressure sensor (13).
4. The high-pressure nitrogen electromagnetic heating vulcanizing device according to claim 1, characterized in that: the input shaft end of the Roots blower (8) is connected with a motor, and the motor is connected with a frequency converter (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110033165.9A CN112959569A (en) | 2021-01-11 | 2021-01-11 | High-pressure nitrogen electromagnetic heating vulcanizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110033165.9A CN112959569A (en) | 2021-01-11 | 2021-01-11 | High-pressure nitrogen electromagnetic heating vulcanizing device |
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| Publication Number | Publication Date |
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| CN112959569A true CN112959569A (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110033165.9A Pending CN112959569A (en) | 2021-01-11 | 2021-01-11 | High-pressure nitrogen electromagnetic heating vulcanizing device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114734565A (en) * | 2022-04-25 | 2022-07-12 | 双钱集团（江苏）轮胎有限公司 | Energy-saving self-driven unpowered full nitrogen vulcanization process |
| CN115091799A (en) * | 2022-06-20 | 2022-09-23 | 青岛森麒麟轮胎股份有限公司 | Tire vulcanizing system and vulcanizing method |
| CN116619800A (en) * | 2023-07-20 | 2023-08-22 | 山东豪迈机械科技股份有限公司 | Tire vulcanizing equipment |
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| CN1300666A (en) * | 2000-12-22 | 2001-06-27 | 青岛天利达橡塑机械有限公司 | Process and equipment for nitrogen far infrared sulfurization of tyre |
| CN101547775A (en) * | 2006-12-05 | 2009-09-30 | 株式会社神户制钢所 | Tire vulcanizer and tire vulcanizing method |
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| EP2567808A1 (en) * | 2011-09-09 | 2013-03-13 | Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | Tire vulcanizing method, and tire vulcanizer |
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| CN108297322A (en) * | 2018-02-05 | 2018-07-20 | 青岛双星橡塑机械有限公司 | Energy-saving tyre vulcanizer |
| CN112082268A (en) * | 2020-08-24 | 2020-12-15 | 江苏绿松节能科技有限公司 | High-pressure nitrogen electromagnetic circulating heating device |
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| CN1290595A (en) * | 2000-07-07 | 2001-04-11 | 青岛国人橡胶研究院 | Method and equpment for heating nitrogenation and vulcanization of tyre |
| CN1300666A (en) * | 2000-12-22 | 2001-06-27 | 青岛天利达橡塑机械有限公司 | Process and equipment for nitrogen far infrared sulfurization of tyre |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114734565A (en) * | 2022-04-25 | 2022-07-12 | 双钱集团（江苏）轮胎有限公司 | Energy-saving self-driven unpowered full nitrogen vulcanization process |
| CN114734565B (en) * | 2022-04-25 | 2023-11-14 | 双钱集团（江苏）轮胎有限公司 | Energy-saving self-driven unpowered total nitrogen vulcanization process |
| CN115091799A (en) * | 2022-06-20 | 2022-09-23 | 青岛森麒麟轮胎股份有限公司 | Tire vulcanizing system and vulcanizing method |
| CN115091799B (en) * | 2022-06-20 | 2023-11-07 | 青岛森麒麟轮胎股份有限公司 | Tire vulcanizing system and vulcanizing method |
| CN116619800A (en) * | 2023-07-20 | 2023-08-22 | 山东豪迈机械科技股份有限公司 | Tire vulcanizing equipment |
| CN116619800B (en) * | 2023-07-20 | 2023-10-24 | 山东豪迈机械科技股份有限公司 | Tire vulcanizing equipment |
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Application publication date: 20210615 |