CN109624365A - Tire curing method and vulcanizer - Google Patents
Tire curing method and vulcanizer Download PDFInfo
- Publication number
- CN109624365A CN109624365A CN201710927474.4A CN201710927474A CN109624365A CN 109624365 A CN109624365 A CN 109624365A CN 201710927474 A CN201710927474 A CN 201710927474A CN 109624365 A CN109624365 A CN 109624365A
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- CN
- China
- Prior art keywords
- pressure
- tire
- nitrogen
- vulcanization
- data
- 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.)
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Classifications
-
- 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
-
- 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
- B29D30/0645—Devices for inserting vulcanising cores, i.e. bladders, into the tyres; Closing the press in combination herewith
-
- 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
- B29D30/0662—Accessories, details or auxiliary operations
- B29D2030/0666—Heating by using fluids
- B29D2030/0667—Circulating the fluids, e.g. introducing and removing them into and from the moulds; devices therefor
- B29D2030/0673—Circulating the fluids, e.g. introducing and removing them into and from the moulds; devices therefor the vulcanizing fluids being combinations of different kinds of fluids, e.g. steam and nitrogen
-
- 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
- B29D30/0662—Accessories, details or auxiliary operations
- B29D2030/0675—Controlling the vulcanization processes
-
- 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
- B29D30/0662—Accessories, details or auxiliary operations
- B29D2030/0675—Controlling the vulcanization processes
- B29D2030/0677—Controlling temperature differences
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
Abstract
The present invention provides a kind of tire curing method, includes the following steps: to form unvulcanized tire after being kneaded in two-roll mill or mixer after mixing green glue stock, compounding agent, filler, vulcanizing agent, through extruder extrusion, fitting；Curing bag is passed through high-temperature steam medium；Steam is switched, changes and is passed through high pressure nitrogen medium；Pressure maintaining is carried out after glue intraluminal pressure rises to standard value range, the dwell time is that glue intraluminal pressure is normally let pass greater than 2.3Mpa tire after 1 minute, 1 minute, if pressure is between 2.0-2.3Mpa, then continues to pour nitrogen, step 4 is repeated, until reaching technological standards；Nitrogen recycling；Exhaust；Curing bag is vacuumized, makes vulcanizate intraluminal pressure 0, vulcanization terminates；The tire depanning that will be vulcanizated.The present invention is in tire vulcanization process when high-temperature steam medium deficiency, and automatic to calculate the accumulative deficient warm time, at the appointed time section delay vulcanization, automatic control delay time improve the qualification rate of tire automatically.
Description
Technical field
The present invention relates to tyre vulcanization technical fields, and in particular to a kind of tire curing method and vulcanizer.
Background technique
Tyre vulcanizing is last procedure in Tire production, is critical process, in sulfuration process, by front
The good tire base of process step combinations, the production with certain shapes and physical mechanical property is sulfided by mold and high temperature, high-pressure medium
Product have the value used.Tyre pressure-keeping alternating temperature nitrogen sulfuration process step is that tyre capsule is first passed through high-temperature steam medium,
High temperature steam temperature is 203~210 DEG C, is rapidly heated about 8~10 minutes in capsule, then changes and be passed through high pressure nitrogen medium, high
Pressure nitrogen pressure is 2.5~2.9Mpa, and pressure maintaining is carried out after glue intraluminal pressure rises to standard value range, is arranged after pressure maintaining
Pressure inhales vacuum, Qi Mo.But in sulfidation, dress pot phenomenon is concentrated to will lead to high temperature steam pressure if there is the same time
Power reduces, or catches up with from steam power plant for the high-temperature steam surge pressure deficiency come, and the low corresponding vapor (steam) temperature of steam pressure is just
Can be low, vapor (steam) temperature is low to will lead to tyre vulcanization deficiency, that is, owes sulphur, form time waste product.Therefore work as height in tire vulcanization process
When warm steam medium deficiency, artificial calculate is needed to add up to owe the warm time, the deficient temperature time, which refers to, is being passed through high-temperature steam medium 1 minute
Terminate this period to high temperature steam medium afterwards, as unit of minute, when vapor (steam) temperature is optionally greater than 200 DEG C lower than 203 DEG C
When, the artificial accumulative time for owing temperature carries out artificial delay vulcanization before pressure maintaining alternating temperature terminates, and adds up to owe how long temperature is just delayed
How long is vulcanization；It is artificial to calculate the accumulative time for owing temperature when vapor (steam) temperature is optionally greater than 190 DEG C lower than 200 DEG C, logical
Enter high pressure nitrogen medium, manually carry out delay vulcanization before pressure maintaining alternating temperature terminates, the accumulative of 2 times of delay owes the warm time；Go out when simultaneously
When existing vapor (steam) temperature is optionally greater than 200 DEG C lower than 203 DEG C and when being lower than 200 DEG C and being optionally greater than 190 DEG C, according to the method described above
It is artificial respectively to calculate accumulative deficient warm time and delay vulcanization time, terminate previous same manual operation delay in pressure maintaining alternating temperature.Delay
Vulcanization makes in tire vulcanization process when high-temperature steam medium deficiency, and tyre vulcanization still reaches standard requirements.Artificial calculate adds up
Easily there is error in the deficient temperature time, and there are also maloperations and leakage operation phenomenon in delay operation.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides tire curing method and vulcanizer, can automatic nitrogen-charging pressure maintaining, no
It needs manually to calculate.
To achieve the above object, the present invention adopts the following technical scheme:
A kind of tire curing method, includes the following steps:
Step 1: after being kneaded in two-roll mill or mixer after green glue stock, compounding agent, filler, vulcanizing agent are mixed,
It is squeezed out through extruder, fitting forms unvulcanized tire；
Step 2: curing bag is passed through high-temperature steam medium；
Step 3: steam being switched, changes and is passed through high pressure nitrogen medium；
Step 4: pressure maintaining is carried out after glue intraluminal pressure rises to standard value range, the dwell time is glue after 1 minute, 1 minute
Intraluminal pressure is greater than 2.3Mpa tire and normally lets pass, as pressure reaches 2.0Mpa hereinafter, cancelling after tyre vulcanization, this tire sulphur
Enter the artificial leak detection maintenance stage after change, if pressure is between 2.0-2.3Mpa, then continues to pour nitrogen, repeat step 4,
Until reaching technological standards；
Step 5: nitrogen recycling；
Step 6: exhaust；
Step 7: curing bag being vacuumized, makes vulcanizate intraluminal pressure 0, vulcanization terminates；
Step 8: the tire depanning that will be vulcanizated.
Preferably, in step 2,0.8 ± 0.05MPa steam is passed through into tyre capsule, the processing time is 3~5min.
Preferably, in step 3, the temperature of nitrogen is 15 DEG C~35 DEG C, nitrogen gas purity is greater than 99.99%, pressure and is
2.4Mpa~2.6Mpa.
Preferably, in step 4, pressure is detected by the pressure gauge being arranged in capsule and is obtained in curing bag, and pressure gauge connects
Automatic nitrogen charger is connect, the automatic nitrogen charger pours nitrogen from trend curing bag according to the detection data of pressure gauge；
The automatic nitrogen charger includes solenoid valve, data acquisition module, data processing module, data outputting module；Data acquisition module
Block acquires the pressure data of pressure gauge, and converts digital signal for analog pressure data, is sent to data processing module, data
Whether the threshold decision that processing module is set in opens solenoid valve, is then sent to judging result by data outputting module
Solenoid valve controls the opening and closing of solenoid valve.
A kind of vulcanizer uses any above-mentioned vulcanization process.
The utility model has the advantages that production energy conservation and environmental protection can be made come vulcanized tyre using both steam and nitrogen reasonable arrangement, and
Tire quality produced is stablized；In tire vulcanization process when high-temperature steam medium deficiency, when automatic calculating adds up to owe temperature
Between, at the appointed time section delay vulcanization, automatic control delay time improve the qualification rate of tire automatically.
Specific embodiment
To explain the technical content, the achieved purpose and the effect of the present invention in detail, it is explained below in conjunction with embodiment.
Embodiment 1:
Step 1: after being kneaded in two-roll mill or mixer after green glue stock, compounding agent, filler, vulcanizing agent are mixed,
It is squeezed out through extruder, fitting forms unvulcanized tire；
Step 2: 0.8MPa steam is passed through into tyre capsule, the processing time is 3；
Step 3: steam being switched, changes and is passed through high pressure nitrogen medium, the temperature of nitrogen is 15 DEG C, nitrogen gas purity is greater than
99.99%, pressure 2.4Mpa；
Step 4: pressure maintaining is carried out after glue intraluminal pressure rises to standard value range, the dwell time is glue after 1 minute, 1 minute
Intraluminal pressure is greater than 2.3Mpa tire and normally lets pass, as pressure reaches 2.0Mpa hereinafter, cancelling after tyre vulcanization, this tire sulphur
Enter the artificial leak detection maintenance stage after change, if pressure is between 2.0-2.3Mpa, then continues to pour nitrogen, repeat step 4,
Until reaching technological standards；
Step 5: nitrogen recycling；
Step 6: exhaust；
Step 7: curing bag being vacuumized, makes vulcanizate intraluminal pressure 0, vulcanization terminates；
Step 8: the tire depanning that will be vulcanizated.
Preferably, in step 4, pressure is detected by the pressure gauge being arranged in capsule and is obtained in curing bag, and pressure gauge connects
Automatic nitrogen charger is connect, the automatic nitrogen charger pours nitrogen from trend curing bag according to the detection data of pressure gauge；
The automatic nitrogen charger includes solenoid valve, data acquisition module, data processing module, data outputting module；Data acquisition module
Block acquires the pressure data of pressure gauge, and converts digital signal for analog pressure data, is sent to data processing module, data
Whether the threshold decision that processing module is set in opens solenoid valve, is then sent to judging result by data outputting module
Solenoid valve controls the opening and closing of solenoid valve.
Embodiment 2:
Step 1: after being kneaded in two-roll mill or mixer after green glue stock, compounding agent, filler, vulcanizing agent are mixed,
It is squeezed out through extruder, fitting forms unvulcanized tire；
Step 2: 0.05MPa steam is passed through into tyre capsule, the processing time is 5min；
Step 3: steam being switched, changes and is passed through high pressure nitrogen medium, the temperature of nitrogen is 35 DEG C, nitrogen gas purity is greater than
99.99%, pressure 2.6Mpa；
Step 4: pressure maintaining is carried out after glue intraluminal pressure rises to standard value range, the dwell time is glue after 1 minute, 1 minute
Intraluminal pressure is greater than 2.3Mpa tire and normally lets pass, as pressure reaches 2.0Mpa hereinafter, cancelling after tyre vulcanization, this tire sulphur
Enter the artificial leak detection maintenance stage after change, if pressure is between 2.0-2.3Mpa, then continues to pour nitrogen, repeat step 4,
Until reaching technological standards；
Step 5: nitrogen recycling；
Step 6: exhaust；
Step 7: curing bag being vacuumized, makes vulcanizate intraluminal pressure 0, vulcanization terminates；
Step 8: the tire depanning that will be vulcanizated.
Above-described specific embodiment has carried out further the purpose of the present invention, technical scheme and beneficial effects
It is described in detail, it should be understood that being not limited to this hair the foregoing is merely a specific embodiment of the invention
Bright, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in the present invention
Protection scope within.
Claims (5)
1. a kind of tire curing method, which comprises the steps of:
Step 1: after being kneaded in two-roll mill or mixer after green glue stock, compounding agent, filler, vulcanizing agent are mixed, through squeezing
Machine squeezes out out, fitting forms unvulcanized tire；
Step 2: curing bag is passed through high-temperature steam medium；
Step 3: steam being switched, changes and is passed through high pressure nitrogen medium；
Step 4: carrying out pressure maintaining after glue intraluminal pressure rises to standard value range, the dwell time is after 1 minute, 1 minute in capsule
Pressure is greater than 2.3Mpa tire and normally lets pass, as pressure reaches 2.0Mpa hereinafter, cancelling after tyre vulcanization, this tire vulcanization knot
Enter the artificial leak detection maintenance stage after beam, if pressure is between 2.0-2.3Mpa, then continues to pour nitrogen, repeat step 4, until
Reach technological standards；
Step 5: nitrogen recycling；
Step 6: exhaust；
Step 7: curing bag being vacuumized, makes vulcanizate intraluminal pressure 0, vulcanization terminates；
Step 8: the tire depanning that will be vulcanizated.
2. a kind of tire curing method according to claim 1, which is characterized in that in step 2, be passed through into tyre capsule
0.8 ± 0.05MPa steam, processing time are 3~5min.
3. a kind of tire curing method according to claim 1, which is characterized in that in step 3, the temperature of nitrogen is 15 DEG C
~35 DEG C, nitrogen gas purity be greater than 99.99%, pressure be 2.4Mpa~2.6Mpa.
4. a kind of tire curing method according to claim 1, which is characterized in that in step 4, in curing bag pressure by
The pressure gauge being arranged in capsule is detected and is obtained, and pressure gauge connects automatic nitrogen charger, and the automatic nitrogen charger is according to pressure
The detection data of meter pours nitrogen from trend curing bag；The automatic nitrogen charger include solenoid valve, data acquisition module,
Data processing module, data outputting module；The pressure data of data collecting module collected pressure gauge, and analog pressure data is turned
Digital signal is turned to, data processing module is sent to, whether the threshold decision that data processing module is set in opens solenoid valve,
Then judging result is sent to by solenoid valve by data outputting module, controls the opening and closing of solenoid valve.
5. a kind of vulcanizer, which is characterized in that use any vulcanization process of claim 1-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710927474.4A CN109624365A (en) | 2017-10-09 | 2017-10-09 | Tire curing method and vulcanizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710927474.4A CN109624365A (en) | 2017-10-09 | 2017-10-09 | Tire curing method and vulcanizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109624365A true CN109624365A (en) | 2019-04-16 |
Family
ID=66050902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710927474.4A Withdrawn CN109624365A (en) | 2017-10-09 | 2017-10-09 | Tire curing method and vulcanizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109624365A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112708180A (en) * | 2020-12-23 | 2021-04-27 | 青岛学朋机械科技有限公司 | Tire and preparation process thereof |
| CN114088320A (en) * | 2021-11-19 | 2022-02-25 | 赛轮集团股份有限公司 | Tire curing bladder leakage detection method |
-
2017
- 2017-10-09 CN CN201710927474.4A patent/CN109624365A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112708180A (en) * | 2020-12-23 | 2021-04-27 | 青岛学朋机械科技有限公司 | Tire and preparation process thereof |
| CN114088320A (en) * | 2021-11-19 | 2022-02-25 | 赛轮集团股份有限公司 | Tire curing bladder leakage detection method |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20190416 |