CN108034096A - A kind of microwave vulcanization hydro-expansive rubber, production method and extrusion molding apparatus for producing the rubber for continuously extruding - Google Patents
A kind of microwave vulcanization hydro-expansive rubber, production method and extrusion molding apparatus for producing the rubber for continuously extruding Download PDFInfo
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- CN108034096A CN108034096A CN201711416820.9A CN201711416820A CN108034096A CN 108034096 A CN108034096 A CN 108034096A CN 201711416820 A CN201711416820 A CN 201711416820A CN 108034096 A CN108034096 A CN 108034096A
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- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L11/00—Compositions of homopolymers or copolymers of chloroprene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B7/00—Mixing; Kneading
- B29B7/002—Methods
- B29B7/005—Methods for mixing in batches
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/06—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam for articles of indefinite length
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
- B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/04—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam
- B29C35/045—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames
- B29C2035/046—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould using liquids, gas or steam using gas or flames dried air
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C35/00—Heating, cooling or curing, e.g. crosslinking or vulcanising; Apparatus therefor
- B29C35/02—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould
- B29C35/08—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation
- B29C35/0805—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation
- B29C2035/0855—Heating or curing, e.g. crosslinking or vulcanizing during moulding, e.g. in a mould by wave energy or particle radiation using electromagnetic radiation using microwave
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2206—Oxides; Hydroxides of metals of calcium, strontium or barium
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/222—Magnesia, i.e. magnesium oxide
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2296—Oxides; Hydroxides of metals of zinc
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
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Abstract
The invention discloses a kind of microwave vulcanization hydro-expansive rubber, production method and extrusion molding apparatus for producing the rubber for continuously extruding, including following mass parts：Neoprene 32.9~40.2, performed polymer 40.2~42.8, reinforcing inorganic filler 8.0~8.2, curing agent 2.4~3.0, accelerating agent 0.4~2.0, processing aid 5~10, calcium oxide 3.2~3.9, antioxidant 0.8~1.0, zinc oxide 1.2~2.3, magnesia 0.6~1.0.Its production method includes：Rubber compound processing, park standing, freshening, extrusion molding, microwave vulcanization, coiling and examine storage.The microwave vulcanization hydro-expansive rubber of the present invention has fairly obvious social benefit, its microwave vulcanization technique is few with manufacturing procedure, the advantages that eliminating deburring, saving labor and raw material, and product quality is stable, yield is high, work efficiency is high, adapts to produce in enormous quantities.
Description
Technical field
The present invention relates to it is a kind of for continuously extrude microwave vulcanization hydro-expansive rubber, production method and produce the rubber
Extrusion molding apparatus.
Background technology
Each medium-and-large-sized city in China is great in construction subway, tunnel, dam, swimming pool and other undergrounds on a large scale at present
Engineering, country also cover the projects such as oil recovery in large scale investment.Waterproof sealing mostly meets water using polyurethane-type in these engineerings
Expanded rubber.
Hydro-expansive rubber is that one kind has caoutchouc elasticity and the specific rubber of water-swellable double grading concurrently, can keep rubber
There is water swelling and water retaining function while glue high resiliency, pressure-resistant compression deformation.Rubber can be solved using this kind of material
The waterproof leak-stopping because of caused by Material shrinkage does not wait sealing problem sternly when permanent deformation and cement material solidification.Simultaneously as this
The apolar surfaces material such as class material and pitch, plastics, rubber isopolarity surfacing and cement mortar, reinforced concrete has
Infiltration adaptation well, therefore be the ideal of the job facilities such as tunnel, subway, culvert, building, underground engineering, offshore oil production
One of inlaid material, while be also the preferable waterproof of automobile, container, precision instrument, medicine, food etc., moisture seal packaging
Material.
Domestic production hydro-expansive rubber product all connects mould discontinuity die pressing life using one mould of vulcanizing press at present
Processing technology method is produced, processing technology backwardness, low output, work efficiency are low.
The content of the invention
Present invention aims at a kind of microwave sulphur for continuously extruding is provided for the deficiency present in the prior art
Change hydro-expansive rubber, production method and produce the rubber extrusion molding apparatus technical solution, the microwave vulcanization meet water it is swollen
The added value of elastomeric material is not only greatly improved in swollen rubber, but also has fairly obvious social benefit, the continuous extrusion
Microwave vulcanization technique has manufacturing procedure few, and the advantages that eliminating deburring, save labor and raw material, and product quality is steady
Fixed, yield height, work efficiency is high, adapts to produce in enormous quantities.
In order to solve the above-mentioned technical problem, the present invention adopts the following technical scheme that：
A kind of microwave vulcanization hydro-expansive rubber for continuously extruding, it is characterised in that including following mass parts：Neoprene
Rubber 32.9~40.2, performed polymer 40.2~42.8, reinforcing inorganic filler 8.0~8.2, curing agent 2.4~3.0, accelerating agent
0.4~2.0, processing aid 5~10, calcium oxide 3.2~3.9, antioxidant 0.8~1.0, zinc oxide 1.2~2.3, magnesia 0.6
~1.0.
Preferably, performed polymer is soluble polyurethane.
Preferably, curing agent is dihydroxy polyethers or N, N '-diethyl thiourea.
Preferably, accelerating agent is 2- mercaptos imidazoline or 1,2- ethylene thiourea.
Preferably, processing aid is one or more kinds of mixtures in vaseline, Tissuemat E or polyethylene glycol.
Preferably, antioxidant 2,2,4- trimethyl -1,2- dihyaroquinoline polyesters.
Production is described above a kind of for the method for the microwave vulcanization hydro-expansive rubber continuously extruded, it is characterised in that bag
Include following steps：
1) rubber compound is processed
A, the formula rate of sizing material is determined according to the dress glue capacity of open mill first, performed polymer and neoprene is pressed into quality
Than for 3:4 addition open mills are plasticated 5~10min, form broken-down rubber；
B, and then into plastic cement accelerating agent, antioxidant and calcium oxide are sequentially added, it is 70~120 to control melting temperature
DEG C, open mill rotating speed is 30~50r/min, is kneaded 5~10min, forms masterbatch；
C, reinforcing inorganic filler, processing aid and zinc oxide are then put into masterbatch, continues 5~10min of mixing, open
Mill rotating speed is 40~60r/min；
D, it is 20~50r/min accelerating agent, curing agent and magnesia, open mill rotating speed to be added in most backward open mill, after
After 5~10min of continuous mixing, dumping bottom sheet；
2) standing is parked
Rubber compound after mixing is placed at room temperature, parks 9~12h of standing, main purpose is to make sizing material molecule
Stress after mixing is fully relaxed, and is eliminated its fatigue and is reduced the shrinking percentage in following process, is conducive to properties of rubber
Uniform stabilization, while continue mutual scattering and permeating between rubber and compounding agent, further improve bound rubber production
Amount and reinforcing effect；
Although various compounding agents are disperseed by means of the mechanism of open mill in mixing, due to being subject to mixing time
Limitation, and compounding agent itself contained humidity and condense the odjective cause such as agglomerating, do not reach the required degree that is uniformly dispersed,
By parking rubber compound can be made to reach preferable performance.
3) freshening
The rubber compound parked after standing is put into mixer, controls 40~80 DEG C of the temperature of mixer, mixer turns
Speed is 40~80r/min, and the freshening time is 2~10min, dumping slice；
Freshening can promote various auxiliary agents scattered in rubber, destroy rubber compound caused gel in parking period
With filler aggregation so that rubber compound becomes soft easy to operation, the mobility and operability of sizing material is improved, in favor of processing
Production, while the physical property and performance of product are improved, extend the service life of product.
4) extrusion molding
Rubber after freshening is each led into extrusion molding apparatus by three delivery pipes, controls extrusion molding apparatus
Rotating speed, during extrusion molding, cooling water is continuously passed through into extrusion molding apparatus；
5) microwave vulcanization
After expanded rubber extrusion molding, the shaping expanded rubber extruded in extrusion device is drawn by pay off rack pulling force,
Into in microwave vulcanization device, microwave vulcanization area of the expanded rubber first in microwave vulcanization device is heated, subsequently into two
In the hot wind curing cage of secondary vulcanization, at a temperature of expanded rubber is set in hot wind curing cage, 10~20min is kept, by cold
But the sulfidation of expanded rubber can be completed after system cooling, it is finally by dragger, expanded rubber is defeated by take-up stand
Go out；
Combined and be used in combination with hot wind vulcanization by microwave vulcanization, not only can guarantee that the technical requirements of hydro-expansive rubber, but also can subtract
Few energy dissipation, heating is rapid, energy-efficient, substantially reduces vulcanization time, improves the quality of vulcanization, under normal pressures
Vulcanization, can improve the insulation performance of hydro-expansive rubber to avoid high steam invades hydro-expansive rubber and causes to aoxidize.
6) coil
Roller is installed on the horizontal line of take-up stand, the expanded rubber exported on take-up stand is at the uniform velocity coiled on roller,
Until reach the number of turns of setting；
7) storage is examined
It is detected after expanded rubber after coiling is removed, detects warehousing after passing.
Continuous extrusion microwave vulcanization technique has manufacturing procedure few, the advantages that eliminating deburring, save labor and raw material,
And product quality is stable, yield is high, work efficiency is high, adapts to produce in enormous quantities.
Water is met in a kind of production method production for the microwave vulcanization hydro-expansive rubber for being used to be used to continuously extrude described above
The extrusion molding apparatus of expanded rubber, including motor, extrusion sleeve, cooling system and extrusion mechanism, motor are consolidated by supporting block
Surely the side of the first support plate is connected to, the first support plate is fixedly connected on bottom plate by reinforcing plate, motor and the first support
The first locating ring is provided between plate, extrusion sleeve is fixedly connected between the first support plate and the second support plate, the second support
Plate is fixedly connected on bottom plate by reinforcing plate, and the second support plate and the first support plate are arranged in parallel, and extrusion sleeve is close
One end of first support plate is provided with entry table, and entry table is connected to by the second locating ring on the side of the first support plate, into
Three feed pipes are evenly arranged with the outer circumference surface of charging tray, feed pipe connecting conveying pipe, extrusion sleeve is close to the second support plate
One end be provided with positioning tube, extrude in sleeve and be provided with stirring section and extruding zone, the first blade is provided with stirring section, it is adjacent
Rabble is evenly arranged between two the first blades, the second blade is provided with extruding zone, the first blade and the second blade are equal
It is fixedly connected in shaft, shaft connection motor, the opposite side of the second support plate is provided with extrusion mechanism, the top of extrusion mechanism
Baffle is provided with, hydraulic cylinder is provided with baffle, hydraulic cylinder is passed through the rubber after freshening by piston rod connecting extruder structure
Delivery pipe through the first blade and acting on for rabble through in three feed pipe input extrusion sleeves, under the action of motor, stirring
Mix section and carry out uniform stirring, the effect then through the second blade, squeezes into extrusion mechanism from extruding zone and export, which carries significantly
The high yield of microwave vulcanization extruded rubber.
Further, cooling system includes cooling water inlet pipe, cooling water outlet pipe and cooling water pipe, and cooling water inlet pipe is solid
Surely be connected on the top surface of the first support plate, cooling water outlet pipe is fixedly connected on the top surface of the second support plate, stirring section and
Cooling water pipe is provided with extruding zone, cooling water inlet pipe connects cooling water outlet pipe by cooling water pipe, and cooling system is favourable
Temperature in extrusion sleeve is controlled, and expanded rubber is reached optimal extrusion temperature in extrusion.
Further, extrusion mechanism includes U-shaped block, extruding pipe and cantilever, and U-shaped block is fixedly connected in the second support plate, squeezes
One end of outlet pipe is connected on U-shaped block by moving block, and extruding pipe is connected with extrusion sleeve, and the other end of extruding pipe is provided with crowded
Lift one's head, the both sides of U-shaped block are symmetrically arranged with cantilever, are connected between two cantilevers by lifter plate, lifter plate is connected to piston rod
Bottom, cantilever is fixedly connected on the both sides of extruding pipe by strut, and expanded rubber passes through the extruded head of extruding pipe and exports, extrusion
Head can need replacing corresponding shape according to actual production, meet the needs coiled, while extruding pipe can be in hydraulic cylinder
Under the action of, the effect through cantilever rotates upwardly and downwardly, and adjusts the output height of expanded rubber.
The present invention is by adopting the above-described technical solution, have the advantages that：
1st, the added value of elastomeric material is not only greatly improved in microwave vulcanization hydro-expansive rubber of the invention, but also has
There is fairly obvious social benefit.
2nd, continuous extrusion microwave vulcanization technique of the invention has manufacturing procedure few, eliminates deburring, saves manpower and original
The advantages that material, and product quality is stable, yield is high, work efficiency is high, adapts to produce in enormous quantities.
Brief description of the drawings
The invention will be further described below in conjunction with the accompanying drawings：
Fig. 1 be the present invention it is a kind of for continuously extrude microwave vulcanization hydro-expansive rubber, production method and produce the rubber
The structure diagram of extrusion molding apparatus in the extrusion molding apparatus of glue；
Fig. 2 is the internal structure schematic diagram that sleeve is extruded in the present invention；
Fig. 3 is the structure diagram of extrusion mechanism in the present invention.
In figure：1- bottom plates；The first support plates of 2-；The second support plates of 3-；4- motors；5- supporting blocks；The first locating rings of 6-；7-
Extrude sleeve；8- entry tables；9- feed pipes；10- delivery pipes；11- positioning tubes；The second locating rings of 12-；13- cooling water inlet pipes；
14- cooling water outlet pipes；15- baffles；16- hydraulic cylinders；17- extrusion mechanisms；18- reinforcing plates；19- extruding zones；20- shafts；21-
First blade；The second blades of 22-；23- rabbles；24- cooling water pipes；25-U shape blocks；26- extruding pipes；27- extruder heads；28- hangs
Arm；29- moving blocks；30- lifter plates；31- struts；32- stirring sections.
Embodiment
A kind of microwave vulcanization hydro-expansive rubber for continuously extruding of the invention, including following mass parts：Neoprene
32.9~40.2, performed polymer 40.2~42.8, reinforcing inorganic filler 8.0~8.2, curing agent 2.4~3.0, accelerating agent 0.4~
2.0, processing aid 5~10, calcium oxide 3.2~3.9, antioxidant 0.8~1.0, zinc oxide 1.2~2.3, magnesia 0.6~
1.0。
Preferably, performed polymer is soluble polyurethane.
Preferably, curing agent is dihydroxy polyethers or N, N '-diethyl thiourea.
Preferably, accelerating agent is 2- mercaptos imidazoline or 1,2- ethylene thiourea.
Preferably, processing aid is one or more kinds of mixtures in vaseline, Tissuemat E or polyethylene glycol.
Preferably, antioxidant 2,2,4- trimethyl -1,2- dihyaroquinoline polyesters.
The performance parameter of microwave vulcanization hydro-expansive rubber is as shown in table 1：
The performance parameter of 1 microwave vulcanization hydro-expansive rubber of table
Production is described above a kind of for the method for the microwave vulcanization hydro-expansive rubber continuously extruded, including following step
Suddenly：
1) rubber compound is processed
A, the formula rate of sizing material is determined according to the dress glue capacity of open mill first, performed polymer and neoprene is pressed into quality
Than for 3:4 addition open mills are plasticated 5~10min, form broken-down rubber；
B, and then into plastic cement accelerating agent, antioxidant and calcium oxide are sequentially added, it is 70~120 to control melting temperature
DEG C, open mill rotating speed is 30~50r/min, is kneaded 5~10min, forms masterbatch；
C, reinforcing inorganic filler, processing aid and zinc oxide are then put into masterbatch, continues 5~10min of mixing, open
Mill rotating speed is 40~60r/min；
D, it is 20~50r/min accelerating agent, curing agent and magnesia, open mill rotating speed to be added in most backward open mill, after
After 5~10min of continuous mixing, dumping bottom sheet；
2) standing is parked
Rubber compound after mixing is placed at room temperature, parks 9~12h of standing, main purpose is to make sizing material molecule
Stress after mixing is fully relaxed, and is eliminated its fatigue and is reduced the shrinking percentage in following process, is conducive to properties of rubber
Uniform stabilization, while continue mutual scattering and permeating between rubber and compounding agent, further improve bound rubber production
Amount and reinforcing effect；
Although various compounding agents are disperseed by means of the mechanism of open mill in mixing, due to being subject to mixing time
Limitation, and compounding agent itself contained humidity and condense the odjective cause such as agglomerating, do not reach the required degree that is uniformly dispersed,
By parking rubber compound can be made to reach preferable performance.
3) freshening
The rubber compound parked after standing is put into mixer, controls 40~80 DEG C of the temperature of mixer, mixer turns
Speed is 40~80r/min, and the freshening time is 2~10min, dumping slice；
Freshening can promote various auxiliary agents scattered in rubber, destroy rubber compound caused gel in parking period
With filler aggregation so that rubber compound becomes soft easy to operation, the mobility and operability of sizing material is improved, in favor of processing
Production, while the physical property and performance of product are improved, extend the service life of product.
4) extrusion molding
Rubber after freshening is each led into extrusion molding apparatus by three delivery pipes, controls extrusion molding apparatus
Rotating speed, during extrusion molding, cooling water is continuously passed through into extrusion molding apparatus；
As shown in Figure 1 to Figure 3, it is a kind of to be used for described above for the life for the microwave vulcanization hydro-expansive rubber continuously extruded
Production method produces the extrusion molding apparatus of hydro-expansive rubber, including motor, extrusion sleeve, cooling system and extrusion mechanism, electricity
Machine is fixedly connected on the side of the first support plate by supporting block, and the first support plate is fixedly connected on bottom plate by reinforcing plate,
The first locating ring is provided between motor and the first support plate, extrusion sleeve is fixedly connected on the first support plate and the second support plate
Between, the second support plate is fixedly connected on bottom plate by reinforcing plate, and the second support plate and the first support plate are arranged in parallel,
Extrusion sleeve is provided with entry table close to one end of the first support plate, and entry table is connected to the first support plate by the second locating ring
Side on, be evenly arranged with three feed pipes on the outer circumference surface of entry table, feed pipe connecting conveying pipe, extrusion sleeve is close
One end of second support plate is provided with positioning tube, extrudes in sleeve and is provided with stirring section and extruding zone, and the is provided with stirring section
One blade, is evenly arranged with rabble between two neighboring first blade, is provided with the second blade in extruding zone, the first blade and
Second blade is fixedly connected with shaft, and shaft connection motor, the opposite side of the second support plate is provided with extrusion mechanism, extrudes
Baffle is provided with above mechanism, hydraulic cylinder is provided with baffle, hydraulic cylinder is by piston rod connecting extruder structure, after freshening
Rubber by delivery pipe through in three feed pipes input extrusion sleeves, under the action of motor, through the first blade and rabble
Act on stirring section carry out uniform stirring, the effect then through the second blade, squeezes into extrusion mechanism from extruding zone and exports, should
Device substantially increases the yield of microwave vulcanization extruded rubber.
Cooling system includes cooling water inlet pipe, cooling water outlet pipe and cooling water pipe, and cooling water inlet pipe is fixedly connected
On the top surface of the first support plate, cooling water outlet pipe is fixedly connected on the top surface of the second support plate, stirring section and extruding zone
Cooling water pipe is inside provided with, cooling water inlet pipe connects cooling water outlet pipe by cooling water pipe, and cooling system is conducive to squeezing
The temperature gone out in sleeve is controlled, and expanded rubber is reached optimal extrusion temperature, cooling temperature such as table 2 in extrusion
It is shown.
| Cooling section | Temperature/DEG C |
| Screw rod | 45.0±5 |
| Extruding zone (4) | 47.0±5 |
| Extruding zone (3) | 48.8±5 |
| Extruding zone (2) | 50.8±5 |
| Extruding zone (1) | 51.7±5 |
| Head temperature | 60.4±5 |
2 cooling temperature of table
Extrusion mechanism includes U-shaped block, extruding pipe and cantilever, and U-shaped block is fixedly connected in the second support plate, and the one of extruding pipe
End is connected on U-shaped block by moving block, and extruding pipe is connected with extrusion sleeve, and the other end of extruding pipe is provided with extruder head, U-shaped
The both sides of block are symmetrically arranged with cantilever, are connected between two cantilevers by lifter plate, and lifter plate is connected to the bottom of piston rod, hang
Arm is fixedly connected on the both sides of extruding pipe by strut, and expanded rubber is exported by the extruded head of extruding pipe, and extruder head can root
Need replacing corresponding shape according to actual production, meet coil needs, while extruding pipe can under the action of hydraulic cylinder,
Effect through cantilever rotates upwardly and downwardly, and adjusts the output height of expanded rubber.
5) microwave vulcanization
After expanded rubber extrusion molding, the shaping expanded rubber extruded in extrusion device is drawn by pay off rack pulling force,
Into in microwave vulcanization device, microwave vulcanization area of the expanded rubber first in microwave vulcanization device is heated, subsequently into two
In the hot wind curing cage of secondary vulcanization, at a temperature of expanded rubber is set in hot wind curing cage, 10~20min is kept, it vulcanizes
Temperature is as described in Table 3, and the sulfidation of expanded rubber can be completed after being cooled down by cooling system, will finally by dragger
Expanded rubber is exported by take-up stand；
3 curing temperature of table
Combined and be used in combination with hot wind vulcanization by microwave vulcanization, not only can guarantee that the technical requirements of hydro-expansive rubber, but also can subtract
Few energy dissipation, heating is rapid, energy-efficient, substantially reduces vulcanization time, improves the quality of vulcanization, under normal pressures
Vulcanization, can improve the insulation performance of hydro-expansive rubber to avoid high steam invades hydro-expansive rubber and causes to aoxidize,
The contrast of its work efficiency is as shown in table 4.
4 work efficiency of table contrasts
6) coil
Roller is installed on the horizontal line of take-up stand, the expanded rubber exported on take-up stand is at the uniform velocity coiled on roller,
Until reach the number of turns of setting；
7) storage is examined
It is detected after expanded rubber after coiling is removed, detects warehousing after passing.
Continuous extrusion microwave vulcanization technique has manufacturing procedure few, the advantages that eliminating deburring, save labor and raw material,
And product quality is stable, yield is high, work efficiency is high, adapts to produce in enormous quantities.
It these are only the specific embodiment of the present invention, but the technical characteristic of the present invention is not limited thereto.It is any with this hair
Based on bright, to realize essentially identical technique effect, made ground simple change, equivalent substitution or modification etc., all cover
Among protection scope of the present invention.
Claims (10)
1. a kind of microwave vulcanization hydro-expansive rubber for continuously extruding, it is characterised in that including following mass parts：Neoprene rubber
Glue 32.9~40.2, performed polymer 40.2~42.8, reinforcing inorganic filler 8.0~8.2, curing agent 2.4~3.0, accelerating agent 0.4
~2.0, processing aid 5~10, calcium oxide 3.2~3.9, antioxidant 0.8~1.0, zinc oxide 1.2~2.3, magnesia 0.6~
1.0。
A kind of 2. microwave vulcanization hydro-expansive rubber for continuously extruding according to claim 1, it is characterised in that：Institute
It is soluble polyurethane to state performed polymer.
A kind of 3. microwave vulcanization hydro-expansive rubber for continuously extruding according to claim 1, it is characterised in that：Institute
Curing agent is stated as dihydroxy polyethers or N, N '-diethyl thiourea.
A kind of 4. microwave vulcanization hydro-expansive rubber for continuously extruding according to claim 1, it is characterised in that：Institute
It is 2- mercaptos imidazoline or 1,2- ethylene thioureas to state accelerating agent.
A kind of 5. microwave vulcanization hydro-expansive rubber for continuously extruding according to claim 1, it is characterised in that：Institute
Processing aid is stated as one or more kinds of mixtures in vaseline, Tissuemat E or polyethylene glycol.
A kind of 6. microwave vulcanization hydro-expansive rubber for continuously extruding according to claim 1, it is characterised in that：Institute
It is 2,2,4- trimethyl -1,2- dihyaroquinoline polyesters to state antioxidant.
7. production is as claimed in claim 1 a kind of for the method for the microwave vulcanization hydro-expansive rubber continuously extruded, it is special
Sign is to include the following steps：
1) rubber compound is processed
A, the formula rate of sizing material is determined according to the dress glue capacity of open mill first, is in mass ratio by performed polymer and neoprene
3:4 addition open mills are plasticated 5~10min, form broken-down rubber；
B, and then into plastic cement accelerating agent, antioxidant and calcium oxide are sequentially added, it is 70~120 DEG C to control melting temperature, is opened
Mill rotating speed is 30~50r/min, is kneaded 5~10min, forms masterbatch；
C, reinforcing inorganic filler, processing aid and zinc oxide are then put into masterbatch, continues 5~10min of mixing, open mill
Rotating speed is 40~60r/min；
D, it is 20~50r/min accelerating agent, curing agent and magnesia, open mill rotating speed to be added in most backward open mill, continues to mix
After refining 5~10min, dumping bottom sheet；
2) standing is parked
Rubber compound after mixing is placed at room temperature, parks 9~12h of standing；
3) freshening
The rubber compound parked after standing is put into mixer, controls 40~80 DEG C of the temperature of mixer, the rotating speed of mixer is
40~80r/min, freshening time are 2~10min, dumping slice；
4) extrusion molding
Rubber after freshening is each led into extrusion molding apparatus by three delivery pipes, controls turning for extrusion molding apparatus
Speed, during extrusion molding, cooling water is continuously passed through into extrusion molding apparatus；
5) microwave vulcanization
After expanded rubber extrusion molding, the shaping expanded rubber extruded in extrusion device is drawn by pay off rack pulling force, is entered
In microwave vulcanization device, microwave vulcanization area of the expanded rubber first in microwave vulcanization device is heated, subsequently into secondary sulphur
In the hot wind curing cage of change, at a temperature of expanded rubber is set in hot wind curing cage, 10~20min is kept, passes through cooling system
The sulfidation of expanded rubber can be completed after system cooling, finally by dragger, expanded rubber is exported by take-up stand；
6) coil
Roller is installed on the horizontal line of take-up stand, the expanded rubber exported on take-up stand is at the uniform velocity coiled on roller, until
Reach the number of turns of setting；
7) storage is examined
It is detected after expanded rubber after coiling is removed, detects warehousing after passing.
8. a kind of production method for the microwave vulcanization hydro-expansive rubber for being used to be used to continuously extrude as claimed in claim 7 is given birth to
Produce the extrusion molding apparatus of hydro-expansive rubber, it is characterised in that：Including motor, sleeve, cooling system and extrusion mechanism are extruded,
The motor is fixedly connected on the side of the first support plate by supporting block, and first support plate is fixedly connected by reinforcing plate
On bottom plate, the first locating ring is provided between the motor and first support plate, the extrusion sleeve is fixedly connected on
Between first support plate and the second support plate, second support plate is fixedly connected on the bottom plate by the reinforcing plate
On, second support plate and first support plate are arranged in parallel, and the extrusion sleeve is close to first support plate
One end be provided with entry table, the entry table is connected to by the second locating ring on the side of first support plate, described
Three feed pipes are evenly arranged with the outer circumference surface of entry table, the feed pipe connects the delivery pipe, the extrusion sleeve
One end of second support plate is provided with positioning tube, stirring section and extruding zone are provided with the extrusion sleeve, it is described
The first blade is provided with stirring section, is evenly arranged with rabble between two neighboring first blade, in the extruding zone
The second blade is provided with, first blade and second blade are fixedly connected with shaft, described in the shaft connection
Motor, the opposite side of second support plate are provided with extrusion mechanism, baffle, the gear are provided with above the extrusion mechanism
Hydraulic cylinder is provided with plate, the hydraulic cylinder connects the extrusion mechanism by piston rod.
It is 9. according to claim 8 a kind of for the production method production for the microwave vulcanization hydro-expansive rubber continuously extruded
The extrusion molding apparatus of hydro-expansive rubber, it is characterised in that：The cooling system includes cooling water inlet pipe, cooling water water outlet
Pipe and cooling water pipe, the cooling water inlet pipe are fixedly connected on the top surface of first support plate, the cooling water water outlet
Pipe is fixedly connected on the top surface of second support plate, and the cooling water is provided with the stirring section and the extruding zone
Pipe, the cooling water inlet pipe connect the cooling water outlet pipe by the cooling water pipe.
It is 10. according to claim 8 a kind of for the production method life for the microwave vulcanization hydro-expansive rubber continuously extruded
Produce the extrusion molding apparatus of hydro-expansive rubber, it is characterised in that：The extrusion mechanism includes U-shaped block, extruding pipe and cantilever, institute
State U-shaped block to be fixedly connected in second support plate, one end of the extruding pipe is connected to the U-shaped block by moving block
On, the extruding pipe is connected with the extrusion sleeve, and the other end of the extruding pipe is provided with extruder head, and the two of the U-shaped block
Side is symmetrically arranged with cantilever, is connected between two cantilevers by lifter plate, the lifter plate is connected to the piston rod
Bottom, the cantilever are fixedly connected on the both sides of the extruding pipe by strut.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111635566A (en) * | 2020-06-22 | 2020-09-08 | 铁科腾跃科技有限公司 | High-expansion-rate water-absorbing rubber suitable for continuous extrusion vulcanization and preparation method thereof |
| CN112341675A (en) * | 2020-11-26 | 2021-02-09 | 西北橡胶塑料研究设计院有限公司 | Microwave heating continuous vulcanization extrusion type water-swellable rubber material and preparation method thereof |
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| CN102070896A (en) * | 2010-06-23 | 2011-05-25 | 上海长宁橡胶制品厂 | Water swellable rubber and production method thereof |
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| CN201728811U (en) * | 2010-06-23 | 2011-02-02 | 上海长宁橡胶制品厂 | Novel equipment for producing water swellable rubber |
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