CN104050365B - Designing method of tire stock vulcanization system - Google Patents
Designing method of tire stock vulcanization system Download PDFInfo
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- CN104050365B CN104050365B CN201410258813.0A CN201410258813A CN104050365B CN 104050365 B CN104050365 B CN 104050365B CN 201410258813 A CN201410258813 A CN 201410258813A CN 104050365 B CN104050365 B CN 104050365B
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Abstract
The invention provides a designing method of a tire stock vulcanization system. The designing method comprises the steps of first, counting the variation range of thermophysical parameters and vulcanization dynamic parameters of a tire; then, establishing a tire vulcanization process numerical model, and carrying out orthogonal testing on the thermophysical parameters and vulcanization dynamic parameters respectively to determine the schema of relation between project positive vulcanization time and the thermophysical parameters and the vulcanization dynamic parameters and the primary and secondary sequence of influence of the thermophysical parameters and the vulcanization dynamic parameters on the positive vulcanization time; finally, selecting the main influencing factor of the positive vulcanization time, and adjusting the numerical value of the main factor according to the relation schema of the project positive vulcanization time and the main influencing factor to design the vulcanization system. The blindness of design of the tire stock vulcanization system is reduced, reasonable matching between different stocks and different vulcanization systems in the tire is realized, the tire vulcanization efficiency is improved, the development expense is reduced, the research and development cycle is shortened, and the thicker the fracture surface of the tire is, the more the layer number of the stock is, and the more effective the method disclosed by the invention is.
Description
Technical field
The present invention relates to a kind of method for designing of tyre stock vulcanizing system.
Background technology
The annular elastic article that tire is made up of multilayer rubber, rubber cord composite, each layer effect is different, its
Sizing compound formula vulcanizing system is also different.In order to improve tyre vulcanization efficiency, need the sulfuration of different sizing materials in Proper Match tire
System.Rubber vulcanization system includes vulcanizing agent, accelerator, activating agent and antiscorching agent etc., and by the adjustment of vulcanizing system, it is permissible
Control the parameters such as rubber density, specific heat capacity, thermal conductivity factor, activation energy and frequency factor within the specific limits relatively independently.
Sulfuration is last procedure of Tire production, determines its final performance.The complicated vulcanization reaction of inside tires makes
Obtain vulcanization characteristics parameter distribution and there is obvious inhomogeneities and time variation, and the factor affecting tyre vulcanization is numerous, leads to
The design of tyre stock vulcanizing system has blindness.Especially in the face of the complicated sulfuration object such as multilayer heavv section radial
When, the vulcanizing system between very difficult Proper Match internal difference sizing material.
Content of the invention
For Shortcomings in prior art, the invention provides a kind of method for designing of tyre stock vulcanizing system.
The present invention is to realize above-mentioned technical purpose by following technological means.
A kind of method for designing of tyre stock vulcanizing system is it is characterised in that comprise the following steps：
The first step, the thermal physical property parameter of conventional elastomeric material, cure kinetics parameter in statistics tire, determine hot physical property ginseng
Number, the excursion of cure kinetics parameter；
Second step, sets up tire vulcanization process numerical model, is that order couples wherein between temperature field and vulcanization field
Relation, the rubber near punching block side is all defined as commaterial M1, the rubber near water pocket side is defined as another kind of material
Material M2；
3rd step, carries out orthogonal test, described thermal physical property parameter, sulphur to thermal physical property parameter, cure kinetics parameter respectively
Change maximum, minimum of a value and the median that kinetic parameter takes its excursion, response index is tire engineering sulfurizing time；
4th step, determines engineering sulfurizing time and thermal physical property parameter, cure kinetics according to the experimental result of the 3rd step
The graph of a relation of parameter, calculates thermal physical property parameter, the extreme difference of cure kinetics parameter, and determines hot physical property ginseng according to experimental result
Number, the cure kinetics parameter impact primary and secondary order to sulfurizing time；
5th step, according to thermal physical property parameter, the cure kinetics parameter impact primary and secondary order to sulfurizing time, chooses master
Want influence factor, according to the graph of a relation of engineering sulfurizing time and this major influence factors, the numerical value adjusting this principal element comes
Design vulcanizing system.
Preferably, described thermal physical property parameter includes thermal conductivity factor λ, specific heat capacity c, density p, described cure kinetics parameter bag
Include frequency factor2And activation energy1Or activation energy and gas constant ratio E1/R.
Preferably, the excursion of thermal conductivity factor λ described in the described first step is 0.2～0.35W/ (m* DEG C), specific heat capacity c
Excursion be 1～2.5kJ/kg, the excursion of density p is 1078～1266kg/m3.
Preferably, in described 4th step, the impact primary and secondary order to sulfurizing time for the described thermal physical property parameter is：Material M1
Specific heat capacity c1>The thermal conductivity factor λ of material M11>The density p of material M11>Specific heat capacity c of material M22>The thermal conductivity factor of material M2
λ2>The density p of material M22.
Preferably, in described 4th step, the impact primary and secondary order to sulfurizing time for the described cure kinetics parameter is：Material
The E of material M11/R>The E of material M21/R>The A of material M12>The A of material M22.
The present invention adopts technique scheme, has the advantages that：
(1) reduce tyre stock vulcanizing system design blindness, realize in tire between different sizing materials between vulcanizing system
Proper Match, improves tyre vulcanization efficiency；
(2) adopt modern design theory and method, carry out the matched design of tyre stock vulcanizing system, reduce fee to develop
With, shorten the R＆D cycle.
(3) tire section is thicker, the sizing material number of plies is more, and method of the present invention is more effective.
Brief description
Fig. 1 is 11.00R20 radial curing system schematic diagram.
Fig. 2 is the graph of a relation between engineering sulfurizing time and hot physical property six factor.
Fig. 3 is the graph of a relation between engineering sulfurizing time and cure kinetics four factor.
Description of reference numerals is as follows：
1- curing system, 2- first metal die, 3- tire, 4- second metal die, 5- water pocket, 6- wearing layer, 7- steel
Wire ring, 8- enhancement layer, 9- pad glue, 10- transition glue, 11- body piles, 12- inner liner, 13- sidewall, 14- shoulder pad glue, 15- tire
Hat, 16- belt, 17- crown base rubber.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment the present invention is further illustrated, but protection scope of the present invention is simultaneously
Not limited to this.
The present invention is elaborated using 11.00R20 radial as embodiment, as shown in figure 1, its curing system
1 includes the first metal die 2, tire 3, the second metal die 4 and water pocket 5, and tire 3 is located at the first metal die 2, the second metal
Between mould 4 and water pocket 5.Tire 3 also include wearing layer 6, wire loop 7, enhancement layer 8, pad glue 9, transition glue 10, body piles 11,
Inner liner 12, sidewall 13, shoulder pad glue 14, crown 15, belt 16, crown base rubber 17.Wherein, enhancement layer 8, body piles 11
It is rubber-cord composite structure with belt 16, metal die 2, metal die 4, wire loop 7 are metal structure, remaining
It is rubber structure.In machine, cure time is 52min, and in front 5min capsule, overheated coolant-temperature gage is linearly down to 170 DEG C by 180 DEG C,
Thereafter 47min temperature keeps constant；Before sulfuration steam temperature, 120 DEG C of 6min holding is invariable, and rear 8min is by 120 DEG C of linear liters
To 151 DEG C, last 38min keep 151 DEG C invariable.Tire initial temperature is 30 DEG C, and sulfurizing mould initial temperature is 120
DEG C, capsule initial temperature is 100 DEG C.This tire section size tire shoulder the thickest is the position being most difficult to vulcanize, and sulfuration herein is special
Property directly determines curing efficiency and the performance of whole tire, for this reason, to tyre stock sulphur of the present invention. taking tire shoulder as a example
The method for designing of change system further illustrates.
The first step, carries out hot physical property and the cure kinetics test data statistical analysis that elastomeric material commonly used by tire, determines
Rubber thermal physical property parameter and the excursion of cure kinetics parameter, in terms of the hot physical property of elastomeric material, density p excursion is
1078～1266kg/m3, thermal conductivity factor λ excursion be 0.2～0.35W/ (m* DEG C), specific heat capacity c excursion be 1～
2.5kJ/kg；In terms of vulcanization of rubber dynamics, in order to simplify calculating, choose K-R model as cure kinetics computation model,
The cure kinetics parameter selecting frequency factor and activation energy and gas constant ratio.Frequency factor2Excursion be set to
596000000～728000000s-1, activation energy and gas constant ratio E1The excursion of/R is set as 8064～10080K.
Second step, sets up tire vulcanization process numerical model, is that order couples wherein between temperature field and vulcanization field
Relation, i.e. the thermal physical property parameter of temperature profile effect factor only material, vulcanization field is by temperature field and vulcanization of rubber power
Learn the common determination of characteristic it is assumed that the tread rubber near punching block side, sidewall rubber are commaterial M1, and near water pocket side
Belt rubber, body piles rubber, inner liner, shoulder wedge are commaterial M2.
3rd step, carries out Orthogonal Experiment and Design to thermal physical property parameter, cure kinetics parameter respectively, and response index is tire
Engineering sulfurizing time (t70), wherein, material parameter takes maximum, minimum of a value and three levels of median of its excursion,
As shown in table 1, table 2：
Table 1 rubber hot physical property design factor and level
Table 2 vulcanization of rubber dynamics Design factor and level
4th step, determines engineering sulfurizing time and thermal physical property parameter, cure kinetics according to the experimental result of the 3rd step
The graph of a relation of parameter, calculates thermal physical property parameter, the extreme difference of cure kinetics parameter, and determines hot physical property ginseng according to experimental result
Number, the cure kinetics parameter impact primary and secondary order to sulfurizing time.
Hot physical property orthogonal test conceptual design and the results are shown in Table 3 it is seen then that because the water pocket thermal resistance in vulcanizer is larger, steel
The impact to engineering sulfurizing time for the hot physical property design factor of mould side material designs apparently higher than the hot physical property of water pocket side material
Factor；By being compared to each factor extreme difference value k in table 4, the impact primary and secondary order to sulfurizing time is：Material M1's
Specific heat capacity c1>The thermal conductivity factor λ of material M11>The density p of material M11>Specific heat capacity c of material M22>The thermal conductivity factor λ of material M22>
The density p of material M22.It can be seen that, when being adjusted to thermal physical property parameter, emphasis needs to pay close attention to the hot physical property of punching block side rubber
Parameter, next to that the specific heat capacity of water pocket side rubber.
Table 3 rubber hot physical property test scheme and result
The hot physical property of table 4 rubber each factor pole difference comparsion
Fig. 2 is thermal physical property parameter and its response trend it is seen then that with punching block side rubber density, specific heat capacity and water pocket
Side rubber specific heat capacity increases, and tire shoulder engineering sulfurizing time is in obvious increase trend, and punching block side rubber specific heat capacity is to engineering
Sulfurizing time impact is maximum；Increase with rubber thermal conductivity factor, engineering sulfurizing time is in that trend, punching block side are obviously reduced
Rubber thermal conductivity factor affects larger on engineering sulfurizing time；Near between water pocket side rubber density and engineering sulfurizing time
There is concave function relation, it can thus be appreciated that the vulcanization characteristics that an optimal design improves shoulder region is had by this density；Comprehensive
Upper described, improve tread rubber thermal conductivity factor, reduce tread rubber specific heat capacity, be the effective way reducing engineering sulfurizing time.
Cure kinetics orthogonal test conceptual design result and analysis in table 5 and table 6, by each parameter extreme difference value k
It is compared, the impact primary and secondary order to engineering sulfurizing time is the E of material M11/R>The E of material M21/R>The A of material M12>
The A of material M22It is seen that when to cure kinetics parameter adjustment, emphasis needs to consider activation energy and the gas of punching block side rubber
Body constant ra-tio, next to that the activation energy of water pocket side rubber and gas constant ratio.Fig. 3 be four factors of cure kinetics and
It responds trend, and close have convex function relation between punching block side rubber frequency factor and engineering sulfurizing time, and close
There is concave function relation, it can thus be appreciated that depositing by frequency factor between water pocket side rubber frequency factor and engineering sulfurizing time
To improve the vulcanization characteristics of shoulder region in an optimal design；With the increase of activation energy and gas constant ratio, tire shoulder work
Journey sulfurizing time is in obvious increase trend it is seen that can easily be realized with gas constant ratio by changing activation energy
Engineering sulfurizing time adjusts.In sum, change frequency factor to obtain optimal design to improve vulcanization characteristics, reduce rubber
Glue activation energy is the effective way reducing engineering sulfurizing time.
Table 5 cure kinetics testing program and result
| Tested number | The A of material M12 | The E of material M11/R | The A of material M22 | The E of material M21/R | t70/s |
| 1 | 5.96E+08 | 8064 | 5.96E+08 | 8064 | 1189 |
| 2 | 5.96E+08 | 9072 | 7.28E+08 | 9072 | 2005 |
| 3 | 5.96E+08 | 10080 | 6.6E+08 | 10080 | 3473 |
| 4 | 6.6E+08 | 8064 | 7.28E+08 | 10080 | 3317 |
| 5 | 6.6E+08 | 9072 | 6.6E+08 | 8064 | 2005 |
| 6 | 6.6E+08 | 10080 | 5.96E+08 | 9072 | 3473 |
| 7 | 7.28E+08 | 8064 | 6.6E+08 | 9072 | 1917 |
| 8 | 7.28E+08 | 9072 | 5.96E+08 | 10080 | 3317 |
| 9 | 7.28E+08 | 10080 | 7.28E+08 | 8064 | 3473 |
Table 6 cure kinetics each factor pole difference comparsion
5th step, according to thermal physical property parameter, the cure kinetics parameter impact primary and secondary order to sulfurizing time, chooses master
Want influence factor, according to the graph of a relation of engineering sulfurizing time and this major influence factors, i.e. Fig. 2, Fig. 3, adjust this main because
The numerical value of element, to design vulcanizing system, improves tread rubber thermal conductivity factor to greatest extent, reduces tread rubber specific heat capacity, reduces tire
At shoulder, all rubber activation energy and gas constant ratio, thus effectively reducing engineering sulfurizing time, realize this tyre stock sulphur
The appropriate design of change system.
Described embodiment be the present invention preferred embodiment, but the present invention is not limited to above-mentioned embodiment, not
In the case of deviating from the flesh and blood of the present invention, any conspicuously improved, replacement that those skilled in the art can make
Or modification belongs to protection scope of the present invention.
Claims (4)
1. a kind of method for designing of tyre stock vulcanizing system is it is characterised in that comprise the following steps：
The first step, the thermal physical property parameter of conventional elastomeric material, cure kinetics parameter, described thermal physical property parameter bag in statistics tire
Include thermal conductivity factor λ, specific heat capacity c, density p, described cure kinetics parameter includes frequency factor2, activation energy and gas constant ratio
Value E1/ R, determines thermal physical property parameter, the excursion of cure kinetics parameter；
Second step, sets up tire vulcanization process numerical model, is order coupled relation wherein between temperature field and vulcanization field,
Rubber near punching block side is all defined as commaterial M1, the rubber near water pocket side is defined as another kind of material M2；
3rd step, carries out orthogonal test to thermal physical property parameter, cure kinetics parameter, described thermal physical property parameter, sulfuration are dynamic respectively
Mechanics parameter takes maximum, minimum of a value and the median of its excursion, and response index is tire engineering sulfurizing time；
4th step, determines engineering sulfurizing time and thermal physical property parameter, cure kinetics parameter according to the experimental result of the 3rd step
Graph of a relation, calculate the extreme difference of thermal physical property parameter, the mean value of sulfurizing time corresponding to cure kinetics parameter, and according to
Experimental result determines thermal physical property parameter, the cure kinetics parameter impact primary and secondary order to sulfurizing time；
5th step, according to thermal physical property parameter, the cure kinetics parameter impact primary and secondary order to sulfurizing time, chooses main shadow
The factor of sound, according to the graph of a relation of engineering sulfurizing time and this major influence factors, adjusts the numerical value of this principal element to design
Vulcanizing system.
2. the method for designing of tyre stock vulcanizing system according to claim 1 is it is characterised in that institute in the described first step
The excursion stating thermal conductivity factor λ is 0.2～0.35W/ (m* DEG C), and the excursion of specific heat capacity c is 1～2.5kJ/kg, density p
Excursion be 1078～1266kg/m3.
3. the method for designing of tyre stock vulcanizing system according to claim 1 is it is characterised in that in described 4th step,
The impact primary and secondary order to sulfurizing time for the described thermal physical property parameter is：Specific heat capacity c of material M11>The thermal conductivity factor λ of material M11
>The density p of material M11>Specific heat capacity c of material M22>The thermal conductivity factor λ of material M22>The density p of material M22.
4. the method for designing of tyre stock vulcanizing system according to claim 1 is it is characterised in that in described 4th step,
The impact primary and secondary order to sulfurizing time for the described cure kinetics parameter is：The E of material M11/R>The E of material M21/R>Material
The A of M12>The A of material M22.
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| CN113917124A (en) * | 2021-10-08 | 2022-01-11 | 安徽佳通乘用子午线轮胎有限公司 | Method for predicting performance of rubber material of finished tire product |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101439563A (en) * | 2008-12-24 | 2009-05-27 | 昊华南方(桂林)橡胶有限责任公司 | Process for changing outer temperature of tire when vulcanizing tire |
| CN101831090A (en) * | 2010-04-02 | 2010-09-15 | 南京理工大学 | High-performance natural rubber vulcanized rubber of carbon-containing nano-tube, and preparation method thereof |
| CN101996272A (en) * | 2010-10-28 | 2011-03-30 | 江苏科技大学 | Method for simulating vulcanization process of rubber product |
| CN102218840A (en) * | 2011-05-30 | 2011-10-19 | 江苏科技大学 | Method for simulating vulcanization of all-steel radial tire |
-
2014
- 2014-06-11 CN CN201410258813.0A patent/CN104050365B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101439563A (en) * | 2008-12-24 | 2009-05-27 | 昊华南方(桂林)橡胶有限责任公司 | Process for changing outer temperature of tire when vulcanizing tire |
| CN101831090A (en) * | 2010-04-02 | 2010-09-15 | 南京理工大学 | High-performance natural rubber vulcanized rubber of carbon-containing nano-tube, and preparation method thereof |
| CN101996272A (en) * | 2010-10-28 | 2011-03-30 | 江苏科技大学 | Method for simulating vulcanization process of rubber product |
| CN102218840A (en) * | 2011-05-30 | 2011-10-19 | 江苏科技大学 | Method for simulating vulcanization of all-steel radial tire |
Non-Patent Citations (5)
| Title |
|---|
| 一种橡胶硫化有限元分析方法;张建等;《橡胶工业》;20120731;第59卷(第7期);第401-407页 * |
| 基于人工智能技术的轮胎硫化优化;王国林等;《江苏大学学报（自然科学版）》;20110331;第32卷(第2期);第144-147页 * |
| 定子橡胶配方优化及对性能影响;康宏强;《中国优秀硕士学位论文全文数据库-工程科技Ⅰ辑》;20140415(第04期);第B016-166页 * |
| 轮胎在硫化过程中的传热特性研究;范翠莲;《中国优秀硕士学位论文全文数据库-工程科技Ⅰ辑》;20120715(第07期);第B016-339页 * |
| 轮胎硫化过程数值分析及实验研究;张建等;《材料科学与工艺》;20120831;第20卷(第4期);第20-25页 * |
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