CN109532336A - A kind of inflatable trouble-proof tire and its processing method - Google Patents
A kind of inflatable trouble-proof tire and its processing method Download PDFInfo
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- CN109532336A CN109532336A CN201910005094.4A CN201910005094A CN109532336A CN 109532336 A CN109532336 A CN 109532336A CN 201910005094 A CN201910005094 A CN 201910005094A CN 109532336 A CN109532336 A CN 109532336A
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- tyre
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- 238000004519 manufacturing process Methods 0.000 claims abstract description 32
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- 239000000463 material Substances 0.000 claims description 42
- 238000004513 sizing Methods 0.000 claims description 36
- 239000007788 liquid Substances 0.000 claims description 24
- 238000004073 vulcanization Methods 0.000 claims description 23
- 238000000465 moulding Methods 0.000 claims description 22
- 238000002360 preparation method Methods 0.000 claims description 15
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- 239000002994 raw material Substances 0.000 claims description 6
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- 230000000694 effects Effects 0.000 abstract description 16
- 230000008859 change Effects 0.000 abstract description 4
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- 238000007664 blowing Methods 0.000 description 28
- 238000000034 method Methods 0.000 description 23
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- 229910052757 nitrogen Inorganic materials 0.000 description 8
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
- B60C5/00—Inflatable pneumatic tyres or inner tubes
-
- 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)
-
- 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)
- B29D30/0678—Injection moulding specially adapted for tyres or parts thereof
-
- 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)
- B29D30/0681—Parts of pneumatic tyres; accessories, auxiliary operations
- B29D30/0685—Incorporating auto-repairing or self-sealing arrangements or agents on or into 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)
- B29D30/0681—Parts of pneumatic tyres; accessories, auxiliary operations
- B29D30/0685—Incorporating auto-repairing or self-sealing arrangements or agents on or into tyres
- B29D2030/0686—Incorporating sealants on or into tyres not otherwise provided for; auxiliary operations therefore, e.g. preparation of the tyre
- B29D2030/0697—Incorporating sealants on or into tyres not otherwise provided for; auxiliary operations therefore, e.g. preparation of the tyre the sealant being in liquid form, e.g. applied by spraying
Landscapes
- 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 kind of inflatable trouble-proof tire and its processing methods, belong to tire art.A kind of inflatable trouble-proof tire of the invention, including tire, inside tires are equipped with inner cavity, and surface of internal cavity is around equipped with helical ridges;Helical ridges detour in inner cavity surface loop shape direction to being covered with inner cavity one week around lumen centers axis;Anti-tie hole is offered along lumen centers axis direction between the tyre surface and inner cavity of tire;Inflatable trouble-proof tire of the invention is by being equipped with helical ridges on tyre cavity surface, change tyre cavity surface texture, increase specific surface area, framework stress is eliminated, heat transfer effect is enhanced, while meeting explosion-proof performance requirement, do not increase tire weight, using processing method of the invention, can integrated straight forming tire, production cost substantially reduces.
Description
Technical field
The present invention relates to tire arts, more particularly to a kind of inflatable trouble-proof tire and its processing method.
Background technique
In recent years, rubber industry fast development provides the wide market space, all kinds of tire product layers for tyre industry
Not poor out, with the raising of people's economic life, car also becomes standing traffic trip tool, brings pole to people's life
While convenience, since the blow out accident of generation of wheel also constantly increases, automobile is in high-speed travel state, for there is the inner tube of a tyre
Or for tubeless tire, all there is abrasion that tire itself generates for a long time and tire bear car body weight be changed into
The air pressure in portion makes the gas motion in tire locally generate high pressure herein when tire quick rotation with ground moment high velocity impact
Power, the outside pressure of inside tires and external ground high velocity impact, are locally generating inside high pressure, are especially running into obstacle
Object increases suddenly again in this local pressure, it is easy to and paroxysmal accident of blowing out is generated, the automobile of traveling is told once to blow out,
The transfer of its center of gravity moment, is easily caused to lose control of one's vehicle, so that accident occur.
Existing trouble-proof tire, which usually passes through, to be increased tyre sidewall thickness, installs high-intensitive backing material additional in tire, in vehicle wheel
When tire is damaged gas leakage, tire can be supported in time, and preventing tire from drastic mechanical deformation occurs causes to lose control of one's vehicle, although improving safety
Property, but this kind of trouble-proof tire is greatly increased compared to conventional tyre weight, increases vehicle burden, usage experience driving comfort
Degree substantially reduces, and processing technology is complicated, causes trouble-proof tire cost at present on the market very high.
Through retrieving, China Patent Publication No.: publication date: CN 104608561A is disclosed a kind of anti-on May 13rd, 2015
Quick-fried tire, including rim, the inner tube of a tyre and cover tire;The inner tube of a tyre includes annular balloon and gas bag;The gas bag is in circle ring array, circumferential direction
It is equidistantly arranged on the periphery wall of the rim;The annular balloon is fixedly arranged at a side of the circle ring array formed by the gas bag
Face;A check valve is offered on the side of each gas bag and annular balloon consolidation;When the annular balloon is full of gas
When, the external annulus of the annular balloon does not contact the internal perisporium of the cover tire and the internal ring wall of the annular balloon does not contact the outer of rim
Peripheral wall;A charge valve is also provided in the annular balloon.Finished product weight under the premise of the trouble-proof tire guarantee of the invention is explosion-proof
Although amount is mitigated, manufacturing procedure is complicated, causes manufacturing cost still very high.
Summary of the invention
1. technical problems to be solved by the inivention
For trouble-proof tire weight in the prior art is big, structure is complicated, processing is complicated, problem at high cost, the present invention is mentioned
A kind of inflatable trouble-proof tire and its processing method are supplied.Inflatable trouble-proof tire of the invention on tyre cavity surface by setting
There are helical ridges, change tyre cavity surface texture, increase specific surface area, eliminate framework stress, enhance heat transfer effect, meets
While explosion-proof performance requires, do not increase tire weight, it, can integrated straight forming wheel using processing method of the invention
Tire, production cost substantially reduce.
2. technical solution
In order to achieve the above objectives, technical solution provided by the invention are as follows:
A kind of inflatable trouble-proof tire, including tire, the inside tires are equipped with inner cavity, and the surface of internal cavity surround and is equipped with
Helical ridges.Surface of internal cavity is that continuous protrusion is set to inner cavity table in the shape of a spiral around helical ridges, a burr is equipped with
Face, the cross sectional shape of burr are not limited in semicircle and rectangle, can be also the shapes such as trapezoidal, for manufacturing semicircle burr
Mold core preferably process, the purpose equipped with burr be increase tyre cavity specific surface area to enhance heat dissipation effect, helical form knot
Structure can eliminate the framework stress of inner cavity, alleviate tire product fatigue, greatly prolong the service life of tire.
Further, the helical ridges detour in inner cavity surface loop shape direction within being covered with around lumen centers axis
Chamber one week.Burr helical form is set to surface of internal cavity, and while enhancing heat dissipation effect, eliminating framework stress, burr is such as spring
Equally around tyre cavity, certain supporting role is played to inner cavity in spring skeleton formula, drastic mechanical deformation when tire being prevented to be punctured
The situation for causing vehicle unbalance occurs.
Further, the surface of internal cavity is at least provided with a helical ridges.It is a plurality of mutual by being arranged in surface of internal cavity
Disjoint helical ridges further strengthen the intensity of surface of internal cavity, are punctured or resistance to deformation when gas leakage with enhancing tire
Ability.
Further, the inner cavity side opens up the valve cock of fixed valve inside and is connected to outside tires.Inner cavity side
Open up the valve cock of fixed valve inside and be connected to outside tires, valve inside can by being mounted on tire side built in valve cock,
External observation is stretched out less than valve inside, and carcass is replaced, is easier for installation.
Further, anti-tie hole is offered along lumen centers axis direction between the tyre surface and inner cavity of the tire.Inner cavity with
Having a cavity between tyre surface is anti-tie hole, and anti-tie hole is to anti-prick ply, the anti-tie hole cross sectional shape of this programme is constituted between tyre surface
Water-drop-shaped, major part one end is close to inner cavity, and at the top of tyre surface, anti-tie hole enlarged head is anti-tie to what is constituted between tyre surface for microcephaly one end
Layer can play good anti-tie effect.
Further, the injection of the tire, hollow and vulcanization process carry out in same mold, and the mold includes upper
Mold, middle mold core and lower mold;The surface of internal cavity has inner liner, and inner liner is sprayed on inner cavity table via liquid inner liner sizing material
It is formed after the solidification of face.
A kind of processing method of inflatable trouble-proof tire, includes the following steps:
One, it plasticates: rubber raw materials is plasticated into flow-like rubber mass;
Two, it molds: upper mold, middle mold core and lower mold clamp being formed into die cavity, by die cavity vacuum state, and heated
To 120~180 DEG C;
Three, it injects: in the rubber mass injection die cavity after plasticating, molding is stood after filling;
Four, it is opened: opening mold, remove middle mold core;
Five, secondary mould closing: close up the upper mold for including half of tire respectively and lower mould secondary to form die cavity, in tire
Portion is the hollow cavity that there is spiral helicine burr on surface;
Six, gas injection: to the hollow injection high temperature and high pressure gas of inside tires;
Seven, vulcanize: vulcanisation operation is carried out to tire;
Eight, pressure release pressure release: is carried out to the high temperature and high pressure gas of inside tires;
Nine, inner liner prepare: by the inner liner sizing material being in a liquid state spray into inside tires it is hollow in;
Ten, twice-die-opening: opening mold, takes out tire.
Further, the inner liner sizing material being in a liquid state by the compressed gas of 0.1~3.0MPa be blown into tire it is hollow in.Pressure
Liquid inner liner sizing material is sufficiently blown into tyre cavity by too small can not be successfully of contracting gas pressure intensity, is blown low efficiency, compression
Gas pressure intensity is excessive to cause injecting velocity too fast, and liquid inner liner sizing material easily generates impact to the tyre cavity near valve cock,
Influence tyre performance and inner liner uniformity.
Further, when carrying out inner liner preparation, inner tyre pressure is uniform, and outside tires are evenly heated.Gas
Uniformity coefficient of the close layer sizing when tyre cavity solidifies is related with the pressure and temperature of tyre cavity, when inside tires, that is, tire
The pressure of inner cavity is uniform, when temperature is uniform, the cured thickness uniformity of each position inner liner sizing material of tyre cavity.
Further, the inner liner preparation step duration is 1.0~2.8min;
Inner liner preparation step is divided into two stages: a), blowing: by compressed gas by liquid inner liner sizing material be blown into
Enter inner cavity, blowing process continues 0.1~0.6min;B), solidify: after the completion of the blowing stage, keeping standing under the constant temperature and pressure of inner cavity
For a period of time, the inner liner sizing material of blowing is made to be solidificated in tyre cavity surface, solidification process continues 0.9~2.2min.
The blowing time, too short will lead to form that inner liner thickness is excessively thin, and air-tightness is not up to standard, and blowing overlong time can waste
Material and to may cause local inner liner thickness excessive, influences tire used performance;Curing time is too short to will lead to air/tight layer rubber
Material fails sufficiently to be solidificated in surface of internal cavity, so that the airtight layer film formed is not enough securely easily ruptured by pressure, solidifies
Overlong time will increase energy consumption and production time, and then increase production cost.
3. beneficial effect
Using technical solution provided by the invention, compared with prior art, have the following beneficial effects:
(1) a kind of inflatable trouble-proof tire of the invention, in inner cavity, surface loop is arranged with helical ridges, considerably increases
The heat dissipation effect of tyre cavity prevents the raising of inner cavity temperature from tire pressure being caused to increase danger of blowing out;Thread-like structure can disappear
Except inner cavity framework stress, alleviates tire product fatigue, extend the safe operating life of tire, and tire of the invention adds spiral
Shape burr not will lead to tire weight weight gain, and raised lines structure can be made in tire manufacturing process with tire integrated molding,
It is not necessary that the separately formed attachment of material is separately configured, compared to the production of existing trouble-proof tire, tire production of the invention is simple,
It is at low cost;
(2) a kind of inflatable trouble-proof tire of the invention, helical ridges are around lumen centers axis in inner cavity surface loop
Shape direction is detoured to inner cavity is covered with one week, using the burr of this scheme arrangement, is equivalent to skeleton and is equally supported on surface of internal cavity, when
When tire is punctured by external force, burr enhancing punctures the intensity of tire near mouth, prevents tire from leading to vehicle by large area tearing
It is unbalance, under the support of burr, when having a flat tire or when tire pressure deficiency, tire can be made to keep the shape of safety traffic, support
Tire prevent tyre sidewall from landing, burr can also play reinforcing effect to inner cavity surrounded surface, increase the strong of tire all directions face
Degree extends tyre life, and deformation degree when tire is damaged is greatly reduced;
(3) a kind of inflatable trouble-proof tire of the invention, surface of internal cavity, can be by setting at least provided with a helical ridges
A plurality of helical ridges are set to increase tire intensity, enhancing tire is punctured or non-deformability when gas leakage, further ensures that
Safety during tire running;
(4) a kind of inflatable trouble-proof tire of the invention, inner cavity side open up the valve cock of fixed valve inside and and tire
Outside connection, allows to be mounted on carcass built in valve inside from tire side, convenient for sealing, avoids and installs gas from wheel rim
The trouble of door core;
(5) a kind of inflatable trouble-proof tire of the invention, along lumen centers axis direction between the tyre surface and inner cavity of tire
Anti-tie hole is offered, anti-prick ply, tyre surface when anti-tie hole enhances tire running with ground face contact are constituted between anti-tie hole and tyre surface
Intensity, make sharp object be not easy to puncture tyre surface, for penetrating the sharp object of tyre surface, length is shorter to be trapped in anti-tie hole, no
After influencing whether that inner cavity air pressure, the longer sharp object of length are pierced into inner cavity, sharp object is stuck at wound by anti-tie hole, is prevented sharp
Object, which falls off, causes wound to increase, and further enhances the safety of tire, anti-prick ply is not also before influencing tire anti-explosion effect
It puts and has saved materials being fabricated, reduce costs;
(6) a kind of inflatable trouble-proof tire of the invention, the injection of tire, hollow and vulcanization process in same mold into
Row simplifies tyre production process, so that tyre cavity burr of the present invention is more readily processed, and the wheel balance degree processed is more
Height, usage experience are more preferable;It is solidificated in tyre cavity surface by using the method that sizing material sprays, fine and close film is formed, compares
In the existing inner liner that film adherency is made, inner liner quality produced by the present invention is lighter;The air-tightness of dense film is more preferable;
The combination for being solidificated in the inner liner and carcass of surface formation is closer, does not generate shear stress each other, does not have delamination hair
Raw, Acceptable life is longer;
(7) processing method of a kind of inflatable trouble-proof tire of the invention, by plasticating, molding, inject, be opened, secondary
Molding, gas injection, vulcanization, pressure release, inner liner preparation, twice-die-opening this technique can complete the hollow of tire in one mold
The process form, vulcanize, preparing inner liner reduces production process, drops without shifting the operation such as tire, pressurization, heating repeatedly
Low power consuming is time-consuming, substantially increases production efficiency, since inflatable trouble-proof tire is injection moulded after directly molding in a mold
, compared to it is existing be made it is curved after the strip of middle with hole connect the molding tire of after cure, method of the invention is processed into
Wheel balance Du Genggao, it is safer;
(8) processing method of a kind of inflatable trouble-proof tire of the invention, by inner liner preparation process, to blowing
Compressed gas pressure, external heating temperature and the control for being blown the time, keep the pressure and temperature of tyre cavity uniformly and stablize
In suitable range, liquid inner liner sizing material can uniformly adhere to after being blown into tyre cavity is solidificated in tyre cavity table
Face, to form fine and close and uniform airtight thin layer, inner liner preparation section of the invention is simply easily realized, obtained inner liner
Lighter and thinner, air-tightness is more preferable;
(9) processing method of a kind of inflatable trouble-proof tire of the invention, manufactured inflatable trouble-proof tire have fine
Air-tightness, in use will not gas leakage, cooperate the improvement of tire surface of internal cavity helical ridges, gas when making tyre production
The adhesive ability of close layer is stronger, and air-tightness is higher;
(10) a kind of inflatable trouble-proof tire of the invention and its processing method, enhance tire to the improvement of tire construction
Thermal diffusivity, avoid summer or run at high speed to cause air pressure excessively high;Helical ridges alleviate tire product fatigue, extend wheel
Tire safe operating life;Raised lines structure also enhances non-deformability when tire is punctured, and tire is unexpected when preventing from being punctured
Deformation causes vehicle unbalance;By the improvement to processing method, tire obtained has very high air-tightness, and high-air-tightness is long
Stablize long, avoid during tire used that tire pressure is insufficient to be happened, solves the hidden danger of tyre explosion from many aspects, reach
Explosion-proof criteria is arrived.
Detailed description of the invention
Fig. 1 is inflatable trouble-proof tire structural schematic diagram of the invention;
Fig. 2 is inflatable trouble-proof tire cross-sectional view of the invention;
Fig. 3 is inflatable trouble-proof tire cross-sectional view of the invention;
Fig. 4 is the enlarged drawing of A in Fig. 3;
Fig. 5 is inflatable trouble-proof tire cross-sectional view of the invention;
Fig. 6 is inflatable trouble-proof tire valve mouth position of the invention;
Fig. 7 is the inflatable trouble-proof tire cross-sectional view that the present invention is equipped with anti-prick ply;
Fig. 8 is the mold structure diagram for processing tire.
In figure: 1, tire;10, inner cavity;11, valve cock;12, anti-tie hole;13, lumen centers axis;2, mold;20, on
Mold;21, middle mold core;22, lower mold;23, injection orifice.
Specific embodiment
To further appreciate that the contents of the present invention, in conjunction with attached drawing, the present invention is described in detail.
Embodiment 1
A kind of inflatable trouble-proof tire of the present embodiment, as shown in Figure 1, Figure 2 and shown in Fig. 5, including tire 1, it is characterised in that:
Inner cavity 10 is equipped with inside the tire 1,10 surface loop of inner cavity is arranged with helical ridges.
Cause tyre explosion generally there are four reason, first is that have a flat tire, gas leakage caused by tire itself damages or by
Gas leakage caused by puncture, second is that tire pressure is excessively high, running at high speed causes tyre temperature to increase, and cannot radiate in time makes gas in tire
Pressure increases, and squeegee action is caused to be blown out;Third is that under-inflation, easily causes big resonance effect power, and may in turning
Cause tyre sidewall to land to blow out;Fourth is that tire self performance, Tire production is that the degree of balance not enough leads to abrasion quickly, makes to go out on tire
Existing frangible vulnerable area;When the main reason for tyre explosion causes the accident is because of galloping, tire ruptures suddenly
Lead to unexpected deformation, lateral deviation occurs for vehicle's center of gravity suddenly change.The present embodiment is directed to above-mentioned cause of accident of blowing out, to tire knot
Structure makes improvement, as follows:
10 surface loop of inner cavity is arranged with helical ridges, as shown in figures 2 and 5, it should be noted that a burr is
Continuous protrusion is set to 10 surface of inner cavity in the shape of a spiral, and the cross sectional shape of burr is not limited in Fig. 4 semicircle shown in (a)
And rectangle shown in (b) in Fig. 4, also it can preferably process, be equipped with for shapes, the mold core for manufacturing semicircle burr such as trapezoidal
The purpose of burr is to increase the specific surface area of tyre cavity 10, compared to smooth 10 surface of inner cavity, the present embodiment is this have it is convex
10 specific surface area of inner cavity of line is bigger, and bring beneficial effect is that the heat dissipation effect of tire greatly improves, in summer or high speed
Caused tire temperature raising can be radiated in time when driving, so that temperature be avoided to increase the situation hair for causing intrauterine pressure excessively high
It is raw.
In addition, being equipped with spiral helicine burr on 10 surface of inner cavity, helicoidal structure can eliminate the framework stress of inner cavity, tire
The stress generated when use has helicoidal structure to uniformly transfer dispersion, greatly alleviates the fatigue of tire product, makes tire
Safe operating life greatly increases.
The inflatable trouble-proof tire of the present embodiment only adds on 10 surface of tyre cavity compared to existing trouble-proof tire structure
If helical ridges, this structure integrated molding can add up in tire building, not will increase dramatically tire weight, will not
Increase automobile weight bearing, it is simple compared to the production of existing trouble-proof tire, it is at low cost.
Embodiment 2
A kind of inflatable trouble-proof tire of the present embodiment, is further improved, the helical form on the basis of embodiment 1
Burr detours in 10 surface circumferential direction of inner cavity to being covered with inner cavity 10 1 weeks around lumen centers axis 13.
As shown in figure 3, burr is set to 10 surface of inner cavity by mode helical form as shown in the figure, in enhancing heat dissipation effect, eliminate
While framework stress, burr, around tyre cavity 10, plays certain branch to inner cavity 10 in spring skeleton formula as spring
Support effect under the action of the helical ridges of present embodiment arrangement, punctures near mouth when tire is punctured by external force
The evenly dispersed active force generated when puncturing of screw thread, unexpected deformation when tire being prevented to be punctured, shape of threads burr also reinforces
The intensity on 10 surface of tyre cavity prevents air pressure from leaking lower unexpected tearing tire, while helical ridges gather in inner cavity 10
Surface can allow automobile that certain speed to be kept to drive safely to repair location in tyre puncture rear support tire shape.
Embodiment 3
A kind of inflatable trouble-proof tire of the present embodiment, is further improved on the basis of embodiment 2, the inner cavity 10
Surface is at least provided with a helical ridges.
The inflatable trouble-proof tire of the present embodiment, by the way that a plurality of mutually disjoint helical ridges are arranged on 10 surface of inner cavity
Further strengthen the intensity on 10 surface of inner cavity, is punctured or non-deformability when gas leakage with enhancing tire;It is also settable more
A inner cavity 10, helical ridges are arranged in each 10 surface of inner cavity, to reach identical effect.
The inflatable trouble-proof tire of the present embodiment, intensity is higher, and tire anti-explosion ability is stronger, but manufacturing cost is mentioned
Height, the inflatable trouble-proof tire of the present embodiment also mountable use, helical ridges in the case where non-aerating can support carcass,
It prevents from tyre sidewall from landing to be worn.
Embodiment 4
A kind of inflatable trouble-proof tire of the present embodiment, is further improved on the basis of embodiment 1 or 2 or 3, described
10 side of inner cavity open up the valve cock 11 of fixed valve inside and be connected to outside tire 1.
Existing valve inside is mounted on the wheel rim of tire inner wall more, and small part is mounted in the groove of wheel rim side, peace
Dress trouble needs frequently disassembly when replacing carcass, and easy gas leakage, the inflatable trouble-proof tire of the present embodiment, 10 side of inner cavity are opened
If the valve cock 11 of fixed valve inside and be connected to outside tire 1, valve inside can be by being mounted on tyre side built in valve cock 11
Face, external observation are stretched out less than valve inside, and sealing is more convenient reliable at valve inside, and more convenient when carcass replacement.
Embodiment 5
A kind of inflatable trouble-proof tire of the present embodiment, is further improved on the basis of embodiment 1 or 2 or 3 or 4,
Anti-tie hole 13 is offered along 13 direction of lumen centers axis between the tyre surface and inner cavity 10 of the tire 1.
As shown in fig. 7, having a cavity between inner cavity 10 and tyre surface is anti-tie hole 13, anti-tie hole 13 is anti-to constituting between tyre surface
Layer is pricked, 13 cross sectional shape of anti-tie hole of the present embodiment is water-drop-shaped, and major part one end is close to inner cavity 10, and microcephaly one end is close to tyre surface top
Portion, anti-tie 13 enlarged head of hole can play good anti-tie effect to the anti-prick ply constituted between tyre surface, and automobile in motion, is taken turns
Tire and the tyre surface of ground face contact are highly prone to the puncture of sharp stone, nail, the drop shape in anti-tie hole 13, small cephalic par to tire
Stress is concentrated between face, is made to be not easy to pierce through tyre surface when encountering sharp object when tire running, is reached anti-tie effect, even if piercing through
Situation, the sharp object for being pierced into tire pass through anti-tie hole, are pierced into tyre cavity 10, the design feature in anti-tie hole 13 can will be pierced into
Object is stuck in wound site, prevents it from falling and wound site increase is caused to accelerate gas leakage, if piercing object is shorter and smaller, be trapped in anti-tie
In hole 13,10 air pressure of inner cavity is not interfered with;Anti-tie hole 13 can also be under the premise of not influencing tire anti-explosion effect further
It reduces tire and makes materials, reduce cost.
Embodiment 6
A kind of inflatable trouble-proof tire of the present embodiment, further changes on the basis of embodiment 1 or 2 or 3 or 4 or 5
Into the injection of the tire 1, hollow and vulcanization process carry out in same mold 2, and the mold 2 includes upper mold 20, middle mould
Core 21 and lower mold 22;
After 10 surface of inner cavity has inner liner, inner liner to be sprayed on 10 surface cure of inner cavity via liquid inner liner sizing material
It is formed.
The inflatable trouble-proof tire of the present embodiment is that tubeless tyre need to first be made when existing tubeless tyre is processed
It is curved after the strip of middle with hole to connect after cure molding, it is too big using the method processing 10 surface relief difficulty of inner cavity, and the method
The operation such as tire, pressurization, heating need to be shifted repeatedly, and process is many and diverse, the inflatable trouble-proof tire of the present embodiment, using straight forming
Method, by middle mold core 21 be equipped with helical form dimpled grain corresponding with 10 surface shape of inner cavity, in upper mold 20 and middle mold core
21, half of tire, the entire tire of straight forming after molding vulcanization, such as Fig. 8 institute are separately formed between lower mold 22 and middle mold core 21
Show, enormously simplify the production process of tire, so that the burr on 10 surface of tyre cavity of the application is easily fabricated, and through we
The wheel balance degree that method is produced is high, and usage experience is good, long service life;Existing tubeless liner is by inner liner
Rubber compounding is adhered on tyre cavity 10 after being rolled into film, the inner liner obtained using this inner liner preparation process with
There is shear stresses between carcass, easily make it that delamination occur between carcass, and easily crack under long-time stress, take off
Layer and crackle will cause tubeless tyre gas leakage, influence air-tightness, to guarantee that air-tightness is up to standard, not only want to properties of rubber
It asks very high, has strict requirements, technology to refining glue capacity, dump temperature, calendering procedure and the vulcanization adherency when being kneaded
It is required that very high, most of producers are difficult to reach requirement, so multi-pass crosses increase inner liner thickness to keep air-tightness up to standard, but in this way
It will cause tire weight increase, waste of material influences usage experience, in view of this, the present invention is to inner liner in 10 table of tyre cavity
The preparation method in face optimizes: inner liner sizing material being smelted into the shape that is in a liquid state, the inner liner sizing material of liquid state is blown and is entered
Tyre cavity 10, liquid inner liner sizing material is uniform curing on 10 surface of tyre cavity, forms fine and close film layer, this combination side
Formula is that macromolecule filming combination is cross-linked by small molecule, is combined closely between airtight layer film and carcass, and approximation is structure as a whole, two
Shear stress between person is minimum, will not occur delamination, the inner liner that inner liner sizing material of the same race is formed by curing by spraying with
Film adherency is made to compare at inner liner, the inner liner quality that spraying is formed after solidifying is lighter, dense film air-tightness is more preferable, no
Delamination occurs, the service life is longer.
Embodiment 7
The processing method of a kind of inflatable trouble-proof tire of the present embodiment, for manufacturing described in Examples 1 to 6 any one
Inflatable trouble-proof tire, comprising the following steps:
One, it plasticates: rubber raw materials is plasticated into flow-like rubber mass;
Two, it molds: closing up upper mold 20, middle mold core 21 and lower mold 22 to form die cavity, by die cavity vacuum state,
And it is heated to 120~180 DEG C;
Three, it injects: in the rubber mass injection die cavity after plasticating, molding is stood after filling;
Four, it is opened: opening mold 2, remove middle mold core 21;
Five, secondary mould closing: closing up the upper mold 20 for including half of tire respectively and lower mold 22 2 times to form die cavity, wheel
It is the hollow cavity that there is spiral helicine burr on surface inside tire;
Six, gas injection: to the hollow injection high temperature and high pressure gas of inside tires;
Seven, vulcanize: vulcanisation operation is carried out to tire;
Eight, pressure release pressure release: is carried out to the high temperature and high pressure gas of inside tires;
Nine, prepared by inner liner: the inner liner sizing material being in a liquid state being sprayed into the hollow cavity of inside tires;
Ten, twice-die-opening: opening mold 2, takes out tire.
The processing method of the inflatable trouble-proof tire of the present embodiment, is plasticated, is molded, injected and is opened step, in mold 2
The molding upper half tire of inner cavity burr and lower half tire have inside been obtained, has been separately formed in upper mold 20 and lower mold 22, passes through
By middle mold core 21 be cast as with the matched helical form dimpled grain shape of inner cavity helical ridges, make tyre cavity 10 formation need to process
Shape, protrusion is provided with 11 moulding mould of upper mold valve cock vertically downwards on upper mold 20, for installing gas after tire building
Men Xin when secondary mould closing, withdraws middle mold core 21, upper mold 20 and lower mold 22 directly mold, at this time inflatable Explosion-proof wheel the form of the foetus
Shape is molded, guarantees the dimensionally stable of tyre cavity 10 in subsequent operation by gas injection step, carries out vulcanisation operation to tire, makes
Upper half tire and lower half tire building are complete tire, when vulcanizing progress and reaching 95% or more, start to inside tires into
Row pressure release is ready for inner liner preparation, liquid inner liner sizing material can be blown into from valve cock, is solidificated in wheel to inner liner sizing material
Behind 10 surface layer of tire inner cavity, twice-die-opening takes out tire, has obtained molding inflatable trouble-proof tire.
Embodiment 8
A kind of processing method of inflatable trouble-proof tire of the present embodiment, is further improved on the basis of embodiment 7,
The inner liner sizing material being in a liquid state is blown into tyre cavity 10 by the compressed gas of 0.1~3.0MPa.
Using compressed gas as power source, by valve cock, the blowing of liquid inner liner sizing material is entered into tyre cavity 10
In, blowing operation is convenient and efficient, according to tyre model difference, selects the compressed gas of different pressure to be blown, compressed gas
Pressure cannot too small (be less than 0.1MPa), otherwise can not be successfully and liquid inner liner sizing material sufficiently be blown into tyre cavity 10
In, be blown low efficiency, compressed gas pressure cannot excessive (be greater than 3.0MPa), pressure is excessive to cause injecting velocity too fast, liquid
Inner liner sizing material easily generates impact to the tyre cavity near valve cock, influences tyre performance, and is blown the excessive influence wheel of pressure
The uniformity of tire chamber pressure causes inner liner uniformity to be affected.
Embodiment 9
A kind of processing method of inflatable trouble-proof tire of the present embodiment, is further improved on the basis of embodiment 8,
When carrying out inner liner preparation, inside tires are that pressure is uniform, and outside tires are evenly heated;Inner liner preparation step continues
Time is 1.0~2.8min.
Show uniformity coefficient and tyre cavity of the inner liner sizing material when tyre cavity 10 solidifies through applicant's experimental study
10 pressure and temperature is related, when the pressure of inside tires, that is, tyre cavity 10 is uniform, when temperature is uniform, and each portion of tyre cavity 10
The position cured thickness uniformity of inner liner sizing material, cured speed can be accelerated by being evenly heated from outside tires to tire
Degree facilitates the attachment of air/tight layer rubber material to solidify after the heating of 10 surface of tyre cavity, and outside tires heating temperature is 100~150 DEG C,
For tyre model difference, select different heating temperatures, heating temperature cannot too low (less than 100 DEG C), otherwise tyre cavity
10 surface temperatures are too low, and inner liner sizing material curing efficiency is low, and the thin layer formed is excessively thin, and not fine and close, heating temperature cannot be excessively high
(being greater than 150 DEG C), it otherwise will affect the performance of inner liner sizing material.
Further, the inner liner preparation step of the present embodiment is divided into two stages: a), being blown: will by compressed gas
The blowing of liquid inner liner sizing material enters inner cavity 10, and blowing process continues 0.1~0.6min;B), solidify: after the completion of the blowing stage,
It keeps standing a period of time under 10 constant temperature and pressure of inner cavity, the inner liner sizing material of blowing is made to be solidificated in 10 surface of inner cavity, solidification process
Continue 0.9~2.2min.
It will lead to that the airtight layer film to be formed is excessively thin, and air-tightness is not the blowing inner liner duration too short (be less than 0.1min)
It is up to standard, blowing inner liner duration too long (being greater than 0.6min) waste material and time, to inner liner consistency and uniformity
Beneficial Effect it is little, in some instances it may even be possible to cause local inner liner thickness excessive, influence performance in subsequent tyre use process;Gu
It is not sufficiently cured on 10 surface of inner cavity to change the inner liner sizing material that the time too short (being less than 0.9min) will lead to blowing, influences airtight
Property, curing time too long (being greater than 2.2min) influences less inner liner solidification, but wastes time, and increases production cost.
Under the premise of inner tyre pressure is uniform, outside tires are evenly heated, pass through the pressure of control compressed gas blowing
By force, blowing the duration can achieve the effect controlled the thickness for preparing inner liner, compared with the prior art in it is airtight
The preparation method of layer, the application can flexibly control the thickness of inner liner preparation, the densification of most thin reachable 0.5mm according to different demands
Uniform inner liner, under the premise of guaranteeing air-tightness, weight shared by mitigation inner liner can give birth to the increase of above-mentioned parameter significantly
Thickness is produced in the compressed air pressure of the application, external heating temperature, blowing time range at the big inner liner of thickness
The fine and close inner liner in homogeneous thickness that degree is 0.5~5.0mm.
Embodiment 10
A kind of processing method of inflatable trouble-proof tire of the present embodiment, is further improved on the basis of embodiment 9,
By vacuum state in die cavity after molding, and die cavity is heated up to 120~180 DEG C;When injecting step, kept for 60~100 DEG C
Injection temperature, injection after the completion of stand 5~50s;In gas injection step, to the hollow injection nitrogen of inside tires, pressure is 0.9~
4.9MPa, temperature are 100~180 DEG C;The duration of vulcanisation step is 600~1000s.
Rubber mass can be easier injection and fill up die cavity when vacuum state in die cavity is facilitated injecting step, by mould
The temperature that 2 outside of tool heats to guarantee die cavity is controlled at 120~180 DEG C, it is ensured that and the rubber mass mobility for being injected into die cavity is enough,
The injection for being bonded near injection orifice 23 and influencing rubber mass will not be pre-chilled;Guarantee injection temperature between 60~100 DEG C, it is ensured that note
The mobility of rubber mass during penetrating, further, the injection time of the present embodiment control in 30s, prevent from injecting slow rubber
Material shifts to an earlier date shaping influence subsequent injections in die cavity, and 5~50s is stood after injection, during this period the first one-step forming of tire, according to production
Parameter selected by the size model number of tire is different;It is completed in needed for tyre vulcanization to inside tires injection high temperature and pressure nitrogen
Pressure support molding, instead of using superheated water to support as internal pressure in traditional handicraft, compared to traditional handicraft, the present embodiment is produced into
This is lower, due to reducing heating and the conveying equipment of water, reduces the 40~50% of vulcanization energy consumption, has saved the expense of water process
With;Injection nitrogen improves sulfide stress, improves the overall performance of tire, shortens vulcanization time;The nitrogen of the present embodiment injection
Gas is that oxygen mass fraction is lower than 10 × 10-6High-purity nitrogen, to vulcanization crosslinking density close to zero consumption, improve vulcanization rear-wheel
The quality of tire, and nitrogen oxygen content is extremely low, will not aoxidize to equipment such as molds, can greatly prolong the service life of equipment;
The duration of the present embodiment vulcanisation step is 600~1000s, selects different ginsengs according to the tire size model difference of production
Number.
Further, the present embodiment is equipped with multiple groups mold, and every group of mold is fixed seat in the plane, the rubber mass injection of the present embodiment
Equipment is funcition table for injecting, and injection pedestal is movable seat in the plane, can be moved between multiple fixed seats in the plane, due to the vulcanization waiting time compared with
Long, injection pedestal can inject next group of mold during waiting vulcanization, save the time of tire production process, a pair of
It is carry out tire production more, space, energy consumption are saved, production efficiency is further increased.
Embodiment 11
A kind of processing method of inflatable trouble-proof tire of the present embodiment, the inflatable Explosion-proof wheel that production diameter is 600mm
Tire, specific steps are as follows:
One, it plasticates: rubber raw materials is plasticated into flow-like rubber mass;
Two, it molds: closing up upper mold 20, middle mold core 21 and lower mold 22 to form die cavity, upper mold 20 and lower mold 22
For the shape of half of tire, the shape of middle mold core 21 is the cylinder strip of closure, which is provided with helical form dimpled grain, in clamping process
By heating mould 2, die cavity is warming up to 120 DEG C, vacuumizes die cavity after molding;
Three, inject: in rubber mass after plasticating injection die cavity, temperature is 60 DEG C, injection time 10s when injection, note
5s molding is stood after full;
Four, it is opened: opening mold 2, remove middle mold core 21;
Five, secondary mould closing: closing up the upper mold 20 for including half of tire respectively and lower mold 22 2 times to form die cavity, wheel
It is the hollow cavity that there is spiral helicine burr on surface inside tire;
Six, gas injection: to the hollow injection high temperature and pressure nitrogen of inside tires, pressure 0.9MPa, temperature is 100 DEG C;
Seven, vulcanize: vulcanisation operation, duration 600s are carried out to tire;
Eight, slow pressure release pressure release: is carried out to the high temperature and high pressure gas of inside tires;
Nine, inner liner prepare: by the inner liner sizing material being in a liquid state spray into inside tires it is hollow in, blowing when, compression
Gas pressure intensity is 0.1MPa, and outside tires heating temperature is 100 DEG C, duration 1.0min;
Ten, twice-die-opening: opening mold 2, takes out tire.
Inflatable trouble-proof tire inner liner made from the present embodiment was not sent out after sufficient gas using 12 months with a thickness of 0.5mm
Green tire drops, phenomenon of not blowing out.
Embodiment 12
A kind of processing method of inflatable trouble-proof tire of the present embodiment, the inflatable Explosion-proof wheel that production diameter is 700mm
Tire, specific steps are as follows:
One, it plasticates: rubber raw materials is plasticated into flow-like rubber mass;
Two, it molds: closing up upper mold 20, middle mold core 21 and lower mold 22 to form die cavity, upper mold 20 and lower mold 22
For the shape of half of tire, the shape of middle mold core 21 is the cylinder strip of closure, which is provided with helical form dimpled grain, in clamping process
By heating mould 2, die cavity is warming up to 150 DEG C, vacuumizes die cavity after molding;
Three, inject: in rubber mass after plasticating injection die cavity, temperature is 85 DEG C, injection time 25s when injection, note
35s molding is stood after full;
Four, it is opened: opening mold 2, remove middle mold core 21;
Five, secondary mould closing: closing up the upper mold 20 for including half of tire respectively and lower mold 22 2 times to form die cavity, wheel
It is the hollow cavity that there is spiral helicine burr on surface inside tire;
Six, gas injection: to the hollow injection high temperature and pressure nitrogen of inside tires, pressure 3.6MPa, temperature is 160 DEG C;
Seven, vulcanize: vulcanisation operation, duration 800s are carried out to tire;
Eight, slow pressure release pressure release: is carried out to the high temperature and high pressure gas of inside tires;
Nine, inner liner prepare: by the inner liner sizing material being in a liquid state spray into inside tires it is hollow in, blowing when, compression
Gas pressure intensity is 2.0MPa, and outside tires heating temperature is 120 DEG C, duration 1.6min;
Ten, twice-die-opening: opening mold 2, takes out tire.
Inflatable trouble-proof tire inner liner made from the present embodiment was not occurred after sufficient gas using 12 months with a thickness of 2mm
Tire pressure decline, phenomenon of not blowing out.
Embodiment 13
A kind of processing method of inflatable trouble-proof tire of the present embodiment, the inflatable Explosion-proof wheel that production diameter is 800mm
Tire, specific steps are as follows:
One, it plasticates: rubber raw materials is plasticated into flow-like rubber mass;
Two, it molds: closing up upper mold 20, middle mold core 21 and lower mold 22 to form die cavity, upper mold 20 and lower mold 22
For the shape of half of tire, the shape of middle mold core 21 is the cylinder strip of closure, which is provided with helical form dimpled grain, in clamping process
By heating mould 2, die cavity is warming up to 180 DEG C, vacuumizes die cavity after molding;
Three, inject: in rubber mass after plasticating injection die cavity, temperature is 100 DEG C, injection time 30s when injection, note
50s molding is stood after full;
Four, it is opened: opening mold 2, remove middle mold core 21;
Five, secondary mould closing: closing up the upper mold 20 for including half of tire respectively and lower mold 22 2 times to form die cavity, wheel
It is the hollow cavity that there is spiral helicine burr on surface inside tire;
Six, gas injection: to the hollow injection high temperature and pressure nitrogen of inside tires, pressure 4.9MPa, temperature is 180 DEG C;
Seven, vulcanize: vulcanisation operation, duration 1000s are carried out to tire;
Eight, slow pressure release pressure release: is carried out to the high temperature and high pressure gas of inside tires;
Nine, inner liner prepare: by the inner liner sizing material being in a liquid state spray into inside tires it is hollow in, blowing when, compression
Gas pressure intensity is 3.0MPa, and outside tires heating temperature is 150 DEG C, duration 2.8min;
Ten, twice-die-opening: opening mold 2, takes out tire.
Inflatable trouble-proof tire inner liner made from the present embodiment was not sent out after sufficient gas using 12 months with a thickness of 5.0mm
Green tire drops, phenomenon of not blowing out.
Schematically the present invention and embodiments thereof are described above, description is not limiting, institute in attached drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited to this.So if the common skill of this field
Art personnel are enlightened by it, without departing from the spirit of the invention, are not inventively designed and the technical solution
Similar frame mode and embodiment, are within the scope of protection of the invention.
Claims (10)
1. a kind of inflatable trouble-proof tire, including tire (1), it is characterised in that: inner cavity (10) are equipped with inside the tire (1),
Inner cavity (10) surface loop is arranged with helical ridges.
2. a kind of inflatable trouble-proof tire according to claim 1, it is characterised in that: the helical ridges surround inner cavity
Central axis (13) detours in inner cavity (10) surface circumferential direction to being covered with inner cavity (10) one weeks.
3. a kind of inflatable trouble-proof tire according to claim 2, it is characterised in that: inner cavity (10) surface is at least set
There are a helical ridges.
4. a kind of inflatable trouble-proof tire according to claim 1, it is characterised in that: inner cavity (10) side offers
The valve cock (11) of fixation valve inside is simultaneously connected to tire (1) outside.
5. a kind of inflatable trouble-proof tire according to claim 1, it is characterised in that: the tyre surface of the tire (1) with it is interior
Anti-tie hole (13) are offered along lumen centers axis (13) direction between chamber (10).
6. a kind of inflatable trouble-proof tire described in any one according to claim 1~5, it is characterised in that: the tire (1)
Injection, hollow and vulcanization process carry out in the same mold (2), the mold (2) includes upper mold (20), middle mold core (21)
With lower mold (22);
After inner cavity (10) surface has inner liner, inner liner to be sprayed on inner cavity (10) surface cure via liquid inner liner sizing material
It is formed.
7. a kind of processing method of inflatable trouble-proof tire, which comprises the steps of:
One, it plasticates: rubber raw materials is plasticated into flow-like rubber mass;
Two, it molds: closing up upper mold (20), middle mold core (21) and lower mold (22) to form die cavity, die cavity is evacuated shape
State, and it is heated to 120~180 DEG C;
Three, it injects: in the rubber mass injection die cavity after plasticating, molding is stood after filling;
Four, it is opened: opening mold (2), remove middle mold core (21);
Five, secondary mould closing: closing up to form die cavity by the upper mold (20) for including half of tire respectively and lower mold (22) are secondary, takes turns
It is the hollow cavity that there is spiral helicine burr on surface inside tire;
Six, gas injection: to the hollow injection high temperature and high pressure gas of inside tires;
Seven, vulcanize: vulcanisation operation is carried out to tire;
Eight, pressure release pressure release: is carried out to the high temperature and high pressure gas of inside tires;
Nine, inner liner prepare: by the inner liner sizing material being in a liquid state spray into inside tires it is hollow in;
Ten, twice-die-opening: opening mold (2), takes out tire.
8. a kind of straight forming tubeless tyre production technology according to claim 7, it is characterised in that: the gas being in a liquid state
Close layer sizing is blown into tyre cavity (10) by the compressed gas of 0.1~3.0MPa.
9. a kind of straight forming tubeless tyre production technology according to claim 8, it is characterised in that: airtight in progress
When layer preparation, inner tyre pressure is uniform, and outside tires are evenly heated.
10. a kind of straight forming tubeless tyre production technology according to claim 9, it is characterised in that: inner liner system
The standby step duration is 1.0~2.8min.
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CN110126551A (en) * | 2019-05-24 | 2019-08-16 | 安徽世界村新材料有限公司 | A kind of low rolling of high stability hinders tire |
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