CN102139537A - Preparation method of rubber tube - Google Patents
Preparation method of rubber tube Download PDFInfo
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- CN102139537A CN102139537A CN2010101061466A CN201010106146A CN102139537A CN 102139537 A CN102139537 A CN 102139537A CN 2010101061466 A CN2010101061466 A CN 2010101061466A CN 201010106146 A CN201010106146 A CN 201010106146A CN 102139537 A CN102139537 A CN 102139537A
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- pipe
- tube
- inert fluid
- preparation
- rubber tube
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- 229920001971 elastomer Polymers 0.000 title claims abstract description 95
- 239000005060 rubber Substances 0.000 title claims abstract description 95
- 238000002360 preparation method Methods 0.000 title claims abstract description 30
- 239000012530 fluid Substances 0.000 claims abstract description 55
- 238000000034 method Methods 0.000 claims abstract description 45
- 239000002243 precursor Substances 0.000 claims abstract description 20
- 238000007789 sealing Methods 0.000 claims description 37
- 238000004513 sizing Methods 0.000 claims description 27
- 239000000463 material Substances 0.000 claims description 25
- 238000005987 sulfurization reaction Methods 0.000 claims description 20
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 238000004073 vulcanization Methods 0.000 claims description 10
- 239000005662 Paraffin oil Substances 0.000 claims description 5
- 229920002545 silicone oil Polymers 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 230000002708 enhancing effect Effects 0.000 abstract 1
- 230000002349 favourable effect Effects 0.000 abstract 1
- 238000000465 moulding Methods 0.000 description 13
- 239000000047 product Substances 0.000 description 8
- 150000001875 compounds Chemical class 0.000 description 7
- 238000005520 cutting process Methods 0.000 description 6
- 239000004033 plastic Substances 0.000 description 6
- 229920003023 plastic Polymers 0.000 description 6
- 230000000052 comparative effect Effects 0.000 description 5
- 238000005486 sulfidation Methods 0.000 description 5
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000012467 final product Substances 0.000 description 4
- 238000007667 floating Methods 0.000 description 4
- 238000007670 refining Methods 0.000 description 4
- 238000010792 warming Methods 0.000 description 4
- 238000000748 compression moulding Methods 0.000 description 3
- 238000004080 punching Methods 0.000 description 3
- 229920002943 EPDM rubber Polymers 0.000 description 2
- 239000006057 Non-nutritive feed additive Substances 0.000 description 2
- 239000004902 Softening Agent Substances 0.000 description 2
- 235000021355 Stearic acid Nutrition 0.000 description 2
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 2
- 239000005864 Sulphur Substances 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 238000000691 measurement method Methods 0.000 description 2
- QIQXTHQIDYTFRH-UHFFFAOYSA-N octadecanoic acid Chemical compound CCCCCCCCCCCCCCCCCC(O)=O QIQXTHQIDYTFRH-UHFFFAOYSA-N 0.000 description 2
- OQCDKBAXFALNLD-UHFFFAOYSA-N octadecanoic acid Natural products CCCCCCCC(C)CCCCCCCCC(O)=O OQCDKBAXFALNLD-UHFFFAOYSA-N 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 238000011056 performance test Methods 0.000 description 2
- 239000012744 reinforcing agent Substances 0.000 description 2
- 239000008117 stearic acid Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000011787 zinc oxide Substances 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009172 bursting Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 238000011282 treatment Methods 0.000 description 1
Landscapes
- Extrusion Moulding Of Plastics Or The Like (AREA)
Abstract
The invention provides a preparation method of a rubber tube, which comprises the following steps: extruding rubber to obtain a hollow tube blank with a tube cavity inside; closing a first end of the tube blank, injecting an inert fluid into the tube cavity from a second end until the inert fluid is fully filled in the tube cavity, and closing the second end to obtain a tube blank to be vulcanized; vulcanizing the tube blank to be vulcanized to obtain a rubber tube precursor; and opening the closed ends of the rubber tube precursor to discharge the inert fluid, thereby obtaining the rubber tube. The rubber tube prepared by the method provided by the invention can not be eccentric, and the core is convenient to remove, thereby greatly enhancing the production efficiency. Meanwhile, the rubber tube has favorable appearance properties, and can not easily generate washmarking.
Description
Technical field
The invention belongs to rubber materials, relate in particular to a kind of preparation method of rubber tube.
Background technology
In the daily life, the use of rubber tube, especially automobile usefulness rubber tube more and more widely.Usually, the preparation method of rubber tube generally is divided into compression molding and extrudes back punching sulfidization molding dual mode.
The method of compression molding is meant puts into the mould compression molding with sizing material, puts into vulcanizing press then through sulfidization molding.This method need process the molding die that meets shape of product and angle earlier usually, and this mould is made up of the support tube core two parts in the middle of bolster and the sebific duct.The smooth surface of the rubber tube of this method preparation, but in manufacturing process, generally adopt high pressure, high temperature, short time sulfuration.And under the condition of high pressure, support tube core easy off normal in product sulfidization molding process, thereby cause the rubber tube product obviously eccentric; And, behind the rubber tube sulfidization molding, support tube core and also be present in rubber tube inside, and the depoling process to be very difficult, production efficiency and yield are extremely low.
Extrude the method for back punching sulfidization molding, be meant the rubber tube pipe of at first in extruder, extruding hollow continuously, in pipe, penetrate the tube core of definite shape then, put into steam vulcanization (cure) jar sulfidization molding.This method relates to punching and two step of depoling operation in manufacturing process, it is very inconvenient to operate; Simultaneously, the sebific duct outer surface is directly exposed in the environment of steam, and product surface is understood residual tangible washmarking, has influence on the presentation quality of product.Simultaneously, the depoling process of this method is also very difficult, and production efficiency and yield are extremely low.
Summary of the invention
For the rubber tube off-centre that overcomes method preparation of the prior art, the problem of depoling process difficulty, the invention provides a kind of preparation method of rubber tube, the rubber tube for preparing by this method can not produce eccentric problem, and without depoling, the production efficiency height.
The preparation method of rubber tube disclosed by the invention comprises:
A, sizing material is extruded, obtained the hollow pipe that inside has tube chamber;
B, with pipe first end sealing, to tube chamber, inject inert fluid from second end, be full of tube chamber until inert fluid, and seal second end, obtain pipe to be vulcanized;
C, pipe to be vulcanized is vulcanized, obtain the rubber tube precursor;
D, open-ended with rubber tube precursor sealing are emitted inert fluid, obtain rubber tube.
According to the preparation method of rubber tube disclosed by the invention, through extrude obtain pipe after, at pipe enclose inside inert fluid.In sulfidation, because the effect of inert fluid makes rubber tube can keep good form, promptly this inert fluid has played the effect of tube core.Simultaneously, because the flowability of inert fluid inside makes pipe in sulfidation, even bigger pressure has been born in the outside, its inside can not produce eccentric problem yet.In addition, after sulfuration finished, that only the rubber tube precursor need be sealed was open-ended, and inert fluid is emitted, and can realize the effect of " depoling ".Improved production efficiency greatly.Particularly for special-shaped rubber tube, the effect of this method is more remarkable.
The specific embodiment
In order to make technical problem solved by the invention, technical scheme and beneficial effect clearer,, the present invention is further elaborated below in conjunction with embodiment.Should be appreciated that specific embodiment described herein only in order to explanation the present invention, and be not used in qualification the present invention.
The preparation method of rubber tube disclosed by the invention comprises:
A, sizing material is extruded, obtained the hollow pipe that inside has tube chamber;
B, with pipe first end sealing, to tube chamber, inject inert fluid from second end, be full of tube chamber until inert fluid, and seal second end, obtain pipe to be vulcanized;
C, pipe to be vulcanized is vulcanized, obtain the rubber tube precursor;
D, open-ended with rubber tube precursor sealing are emitted inert fluid, obtain rubber tube.
According to the present invention, the used sizing material of preparation rubber tube can be this area various sizing materials commonly used, and sizing material can contain 100 parts of ethylene propylene diene rubbers, 5.0 parts of zinc oxide, 1.5 parts of stearic acid, 80 portions of reinforcing agents, 40 parts of fillers, 2.0 parts of age resistor, 50 parts of softening agents, 0.5 part of sulphur, 4.5 parts of promoter, 2.0 parts of processing aids as described.
By when preparing sizing material, can carry out banburying and open refining sizing material, make that each composition further mixes in the sizing material, and promote the generation of some reactions, improve the performance of last rubber tube product.
Wherein, described banburying method is this area method commonly used, as the banburying condition is: the various components of sizing compound formula are joined in the banbury (iceberg, Dalian rubber and plastics machine Co., Ltd) persistently overheating mixing 4-5min; When reaching 120 ℃, temperature opens floating weight of banbury mixer, exhaust 1-3 time.Close floating weight then, continue to be warming up to discharge behind 130 ℃ of mixing 2-3min, obtain elastomeric compound.
The described smelting method of opening is this area method commonly used, as opens the refining condition and be: elastomeric compound is placed in the mill (iceberg, Dalian rubber and plastics machine Co., Ltd), be warming up to 50-80 ℃, open refining time 15-25min.
Among the preparation method of rubber tube disclosed by the invention, the method for extruding is this area method commonly used, extrudes machine as the combined type that the above-mentioned sizing material of getting ready is placed Zhanjiang equipment Co., Ltd produce, and extrudes under 75 ℃, and extruded velocity is 8m/min.In the present invention, the internal diameter of extruding the pipe that obtains by above-mentioned extruder is thought consistent with external diameter.
After extruder is extruded continuously, promptly obtain the rubber tube pipe, can according to actual needs it be cut into the pipe of certain-length.
The method of described sealing pipe first end is: first closing cock is filled in the tube chamber of the pipe first end end, and the tube wall and first closing cock are filled in the part sealing and fixing of pipe from the pipe first end outer wall.For reaching better sealing effectiveness, described first closing cock and tube chamber are interference fit.
After the sealing of pipe first end, promptly form the tubular structure of first end sealing, in tube chamber, inject inert fluid.Described inert fluid is meant with respect to sizing material and is inertia, promptly is prepared in the rubber tube process at sizing material, not with the fluid of sizing material or pipe generation chemical reaction.
Among the present invention, described inert fluid is selected from a kind of in water, methyl-silicone oil, compressed air, the paraffin oil.Be preferably water.
Inject inert fluid in tube chamber after, with the sealing of pipe second end, the method for described sealing is identical with the method for aforementioned sealing pipe first end.For example, can for: second closing cock is filled in the tube chamber of the pipe second end end, and the tube wall and second closing cock is filled in the part sealing and fixing of pipe from the pipe second end outer wall.
According to the present invention, the method of above-mentioned sealing and fixing can be various fixing methods in the prior art, for example can for: fix with clip on the outer wall of pipe, fixing first closing cock again of described clip and/or second closing cock are filled on the outer wall of pipe at part place of pipe.
Concrete, the above-mentioned method of injecting inert fluid in tube chamber can be the whole bag of tricks commonly used.In the present invention, can realize that the described at least second closing cock end axis is to being provided with mozzle by following structure, described mozzle can be communicated with tube chamber and atmosphere; Described mozzle is provided with valve, but the connected sum of the switching control valve chamber of valve and atmosphere is isolated.
Under the situation of first end sealing, mozzle is connected to the inert fluid source, open valve, in tube chamber, import inert fluid by mozzle, after the amount of inert fluid input reaches desired value, valve-off, the disconnection mozzle is connected with the inert fluid source, promptly finishes the step of injecting inert fluid.
When having only the second closing cock end axis when being provided with mozzle, under the situation of first end sealing, can in tube chamber, inject inert fluid by this mozzle.When the inert fluid that injects reach demand after, valve-off gets final product.
Same, when first closing cock and the second closing cock end all are provided with mozzle, can in tube chamber, import inert fluid by two mozzles of first closing cock and second closing cock simultaneously.Closing two valves on the mozzle after fluid injection finishes gets final product.
According to the present invention, the amount of the inert fluid that injects in tube chamber makes inert fluid be full of tube chamber and gets final product, under the preferable case, making the described pressure of waiting to vulcanize inert fluid in the pipe behind sealing second end is 0.005MPa-0.1MPa, more preferably 0.04MPa-0.08MPa.Can better guarantee to wait to vulcanize pipe the keeping of shape before the rubber tube in sulfidation by making inert fluid in the tube chamber have pressure in the above-mentioned scope.
As mentioned above, for realizing that inert fluid reaches certain pressure in the tube chamber, under the preferable case, on described mozzle, be provided with Pressure gauge.When mozzle was communicated to the inert fluid source, inert fluid can enter tube chamber by mozzle.The logical inert fluid in tube chamber that continues, after the pressure of inert fluid reached desired value in Pressure gauge shows tube chamber, valve-off had promptly been realized the pressurized treatments of inert fluid in the tube chamber.
Further, described inert fluid temperature is 40 ℃-90 ℃, more preferably 60 ℃-80 ℃.It is softening will to wait to vulcanize pipe to a certain extent when the temperature of inert fluid is in above-mentioned scope, helps pipe to be vulcanized is installed into the row sulfuration.
In the tube chamber of pipe, inject inert fluid, and after sealing its two ends, can vulcanize.
The method of described sulfuration can adopt existing the whole bag of tricks to carry out, as: pipe to be vulcanized is placed vulcanizing press,, be preferably under 170-180 ℃, 12-14MPa and vulcanize 4-6min in 160-200 ℃, 10-15MPa sulfuration 4-10min down.
After vulcanizing by said method, can obtain the rubber tube precursor, the rubber tube precursor is taken out, it is open-ended, inert fluid is emitted, promptly realize " depoling " obtaining rubber tube immediately.Especially for shape tube, its " depoling " process is easier, the efficient height.Simultaneously, after vulcanizing by this method, the rubber tube that obtains is specious.
In method disclosed by the invention, the another kind of method of vulcanizing, can adopt: pipe to be vulcanized is placed mould, mould is positioned in the steam vulcanization (cure) jar then, in 140-165 ℃, 0.2-0.8MPa sulfuration 20-60min down, be preferably under 145-155 ℃, 0.4-0.55MPa and vulcanize 25-35min.Similar with preceding a kind of vulcanization, after vulcanizing by this method, can obtain the rubber tube precursor, the rubber tube precursor is taken out, it is open-ended, inert fluid is emitted, promptly realize " depoling " obtaining rubber tube immediately.Simultaneously, will pipe be vulcanized place mould to vulcanize and can guarantee that also washmarking does not appear in product surface, product be specious.Other method at the inner poling core of pipe, is support with the tube core in conventional method then, treats the sulfuration pipe and carries out naked sulfuration.And in this vulcanization process, because interspersed tube core needs place corresponding mould to vulcanize pipe to be vulcanized.
In above-mentioned vulcanization process, mould can adopt existing various mould, as the molding die of routine, only needs to wait to vulcanize the pipe outer wall and surrounds, and exist and wait to vulcanize the pipe corresponding grooves and make and wait to vulcanize the shape of pipe in sulfidation and keep stablizing.
After the sulfuration that the rubber tube precursor that obtains is open-ended, emit inert fluid, can obtain rubber tube.The method of carrying out opening does not have special requirement, for example can be the end excision of rubber tube precursor that will sealing.When adopting the method for sealing pipe disclosed by the invention, only need open valve, emit inert fluid, unclamp clip then, take out first closing cock and second closing cock gets final product.
Though the rubber tube that obtains by method for preparing does not have tube core to support, in its sulfidation deformation little, meet standard-required.
The present invention is further illustrated below by embodiment.
The sizing compound formula that adopts in the embodiment of the invention and Comparative Examples is: 100 parts of ethylene propylene diene rubbers, 5.0 parts of zinc oxide, 1.5 parts of stearic acid, 80 portions of reinforcing agents, 40 parts of fillers, 2.0 parts of age resistor, 50 parts of softening agents, 0.5 part of sulphur, 4.5 parts of promoter, 2.0 parts of processing aids.
The various components of above-mentioned sizing compound formula are joined in the banbury (iceberg, Dalian rubber and plastics machine Co., Ltd) persistently overheating mixing 5min; When reaching 120 ℃, temperature opens floating weight of banbury mixer, exhaust 3 times.Close floating weight then, continue to be warming up to discharge behind 130 ℃ of mixing 3min, obtain elastomeric compound.
Elastomeric compound is placed in the mill (iceberg, Dalian rubber and plastics machine Co., Ltd), be warming up to 80 ℃, open refining 20min.It is standby to obtain sizing material.
Prepare molding die, this mould has upper die and lower die and core rod.Patrix and counterdie be to corresponding, and can be in conjunction with installation.Core rod places in the die cavity between patrix and the counterdie, and the space between upper die and lower die and the core rod is the shape of last rubber tube.
Embodiment 1
Present embodiment is used to illustrate the preparation method of rubber tube disclosed by the invention.
The combined type that sizing material places Zhanjiang equipment Co., Ltd to produce is extruded machine, extrude under 75 ℃, extruded velocity is 8m/min.Obtaining length after cutting is 500mm, and internal diameter is 27.1mm, and external diameter is the pipe of 36.2mm.
First closing cock is filled in the tube chamber of the pipe first end end, and from the pipe first end outer wall tube wall and first closing cock are filled in the part sealing and fixing of pipe with clip.
Second closing cock is filled in the tube chamber of the pipe second end end, and from the pipe second end outer wall tube wall and second closing cock are filled in the part sealing and fixing of pipe with clip.The second closing cock end axis is to being provided with mozzle, and mozzle is provided with valve and Pressure gauge.
Open valve, continue to inject 80 ℃ hot water from mozzle, the pressure of hot water is 0.08MPa in Pressure gauge shows tube chamber.Valve-off.Obtain waiting to vulcanize pipe S10.
Pipe to be vulcanized is placed vulcanizing press, in 170 ℃, the following sulfuration of 13MPa 6min.Obtain the rubber tube precursor.
With the valve open on rubber tube second closing cock, emit water.Then, take off first closing cock and second closing cock.Obtain rubber tube S1.
Embodiment 2
Present embodiment is used to illustrate the preparation method of rubber tube disclosed by the invention.
The combined type that sizing material places Zhanjiang equipment Co., Ltd to produce is extruded machine, extrude under 75 ℃, extruded velocity is 8m/min.Obtaining length after cutting is 500mm,, internal diameter is 27.1mm, external diameter is the pipe of 36.2mm.
First closing cock is filled in the tube chamber of the pipe first end end, and from the pipe first end outer wall tube wall and first closing cock are filled in the part sealing and fixing of pipe with clip.
Second closing cock is filled in the tube chamber of the pipe second end end, and from the pipe second end outer wall tube wall and second closing cock are filled in the part sealing and fixing of pipe with clip.Upwards be provided with mozzle at first closing cock and the second closing cock end axis, be provided with valve and Pressure gauge on two mozzles.
Open the valve on first closing cock and the second closing cock end, continue to inject 70 ℃ paraffin oil from two mozzles simultaneously, the pressure of paraffin oil is 0.06MPa in Pressure gauge shows tube chamber.Close the valve on first closing cock and the second closing cock end.Obtain waiting to vulcanize pipe S20.
Pipe to be vulcanized is placed vulcanizing press, in 165 ℃, the following sulfuration of 11MPa 5.5min.Obtain the rubber tube precursor.
With the valve open on rubber tube second closing cock, emit paraffin oil.Then, take off first closing cock and second closing cock.Obtain rubber tube S2.
Embodiment 3
Present embodiment is used to illustrate the preparation method of rubber tube disclosed by the invention.
The combined type that sizing material places Zhanjiang equipment Co., Ltd to produce is extruded machine, extrude under 75 ℃, extruded velocity is 8m/min.Obtaining length after cutting is 500mm, and internal diameter is 27.1mm, and external diameter is the pipe of 36.2mm.
First closing cock is filled in the tube chamber of the pipe first end end, and from the pipe first end outer wall tube wall and first closing cock are filled in the part sealing and fixing of pipe with clip.
Second closing cock is filled in the tube chamber of the pipe second end end, and from the pipe second end outer wall tube wall and second closing cock are filled in the part sealing and fixing of pipe with clip.The second closing cock end axis is to being provided with mozzle, and mozzle is provided with valve and Pressure gauge.
Open valve, continue to inject 60 ℃ compressed air, show that until Pressure gauge the pressure of tube chamber compressed air is 0.02MPa from mozzle.Valve-off.Obtain waiting to vulcanize pipe S30.
Pipe to be vulcanized is placed the die cavity of molding die counterdie, and patrix closes.Again inside is had and wait that the mould that vulcanizes pipe places the steam vulcanization (cure) jar, in 150 ℃, the following sulfuration of 0.5MPa 30min.Obtain the rubber tube precursor.
Valve open with on rubber tube second closing cock deflates.Then, take off first closing cock and second closing cock.Obtain rubber tube S3.
Embodiment 4
Present embodiment is used to illustrate the preparation method of rubber tube disclosed by the invention.
The combined type that sizing material places Zhanjiang equipment Co., Ltd to produce is extruded machine, extrude under 75 ℃, extruded velocity is 8m/min.Obtaining length after cutting is 500mm, and internal diameter is 27.1mm, and external diameter is the pipe of 36.2mm.
First closing cock is filled in the tube chamber of the pipe first end end, and from the pipe first end outer wall tube wall and first closing cock are filled in the part sealing and fixing of pipe with clip.
Second closing cock is filled in the tube chamber of the pipe second end end, and from the pipe second end outer wall tube wall and second closing cock are filled in the part sealing and fixing of pipe with clip.The second closing cock end axis is to being provided with mozzle, and mozzle is provided with valve and Pressure gauge.
Open valve, continue to inject 50 ℃ hot water from mozzle, the pressure of hot water is 0.01MPa in Pressure gauge shows tube chamber.Valve-off.Obtain waiting to vulcanize pipe S40.
Pipe to be vulcanized is placed the die cavity of molding die counterdie, and patrix closes.Again inside is had and wait that the mould that vulcanizes pipe places the steam vulcanization (cure) jar, in 160 ℃, the following sulfuration of 0.7MPa 28min.Obtain the rubber tube precursor.
With the valve open on rubber tube second closing cock, emit water.Then, take off first closing cock and second closing cock.Obtain rubber tube S4.
Embodiment 5
Present embodiment is used to illustrate the preparation method of rubber tube disclosed by the invention.
The combined type that sizing material places Zhanjiang equipment Co., Ltd to produce is extruded machine, extrude under 75 ℃, extruded velocity is 8m/min.Obtaining length after cutting is 500mm, and internal diameter is 27.1mm, and external diameter is the pipe of 36.2mm.
First closing cock is filled in the tube chamber of the pipe first end end, and from the pipe first end outer wall tube wall and first closing cock are filled in the part sealing and fixing of pipe with clip.
Second closing cock is filled in the tube chamber of the pipe second end end, and from the pipe second end outer wall tube wall and second closing cock are filled in the part sealing and fixing of pipe with clip.The second closing cock end axis is to being provided with mozzle, and mozzle is provided with valve.
Open valve, continue to inject water, overflow from mozzle until water from mozzle.Valve-off.Obtain waiting to vulcanize pipe S50.
Pipe to be vulcanized is placed the die cavity of molding die counterdie, and patrix closes.Again inside is had and wait that the mould that vulcanizes pipe places the steam vulcanization (cure) jar, in 140 ℃, the following sulfuration of 0.7MPa 45min.Obtain the rubber tube precursor.
With the valve open on rubber tube second closing cock, emit water.Then, take off first closing cock and second closing cock.Obtain rubber tube S5.
Comparative Examples 1
This Comparative Examples is used to illustrate the preparation method of rubber tube of the prior art.
Sizing material is placed in the groove of counterdie, place on the core rod and with patrix at sizing material to be combined on the counterdie, the molding die that inside is had sizing material places vulcanizing press, in 170 ℃, the following sulfuration of 13MPa 6min.Obtain rubber tube D1.
Comparative Examples 2
This Comparative Examples is used to illustrate the preparation method of rubber tube of the prior art.
The combined type that sizing material places Zhanjiang equipment Co., Ltd to produce is extruded machine, extrude under 75 ℃, extruded velocity is 8m/min.Obtaining length after cutting is 500mm, and internal diameter is 27.1mm, and external diameter is the pipe of 36.2mm.
In pipe, insert tube core, and the tube core that the outside is with pipe is placed the steam vulcanization (cure) jar, in 150 ℃, 0.5MPa sulfuration 30min down.Obtain rubber tube D2.
Performance test
Carry out following performance test according to above-mentioned rubber tube S1-S5, D1 for preparing and D2:
1, inside/outside diameter size
Directly adopt vernier caliper measurement to measure GBT 9573 (2003) rubber, plastic flexible pipe and rubber hose assembly dimension measurement method;
2, port wall thickness
Directly adopt slide measure to measure GBT 9573 (2003) rubber, plastic flexible pipe and rubber hose assembly dimension measurement method;
3, apparent property
Directly whether there is washmarking by perusal;
4, bursting property
According to GB/T 18948-2003, cooling system is tested with gum rubber tubing and rubber hose;
5, fatigue behaviour
According to GB/T 18948-2003, cooling system is tested with gum rubber tubing and rubber hose.
The accordingly result of above-mentioned test is charged to table 1.
Table 1
From the test result of table 1 as can be seen, it is even to prepare rubber tube port wall thickness by method disclosed by the invention, can not produce the problem of " core shift ", and its apparent property is good simultaneously, does not have washmarking to produce.In addition, every performance of rubber tube has all reached instructions for use.
The above only is preferred embodiment of the present invention, not in order to restriction the present invention, all any modifications of being done within the spirit and principles in the present invention, is equal to and replaces and improvement etc., all should be included within protection scope of the present invention.
Claims (10)
1. the preparation method of a rubber tube comprises:
A, sizing material is extruded, obtained the hollow pipe that inside has tube chamber;
B, with pipe first end sealing, to tube chamber, inject inert fluid from second end, be full of tube chamber until inert fluid, and seal second end, obtain pipe to be vulcanized;
C, pipe to be vulcanized is vulcanized, obtain the rubber tube precursor;
D, open-ended with rubber tube precursor sealing are emitted inert fluid, obtain rubber tube.
2. preparation method according to claim 1 is characterized in that: the described pressure of waiting to vulcanize inert fluid in the pipe is 0.005MPa-0.1MPa, and described inert fluid temperature is 40 ℃-90 ℃.
3. preparation method according to claim 1 and 2 is characterized in that: described inert fluid is selected from a kind of in water, methyl-silicone oil, compressed air, the paraffin oil.
4. preparation method according to claim 1, it is characterized in that: the method for described sealing pipe first end is: first closing cock is filled in the tube chamber of the pipe first end end, and the tube wall and first closing cock are filled in the part sealing and fixing of pipe from the pipe first end outer wall.
5. preparation method according to claim 4, it is characterized in that: the method for described sealing pipe second end is: second closing cock is filled in the tube chamber of the pipe second end end, and the tube wall and second closing cock are filled in the part sealing and fixing of pipe from the pipe second end outer wall.
6. preparation method according to claim 5 is characterized in that: the described at least second closing cock end axis is to being provided with mozzle, and described mozzle can be communicated with tube chamber and atmosphere; Described mozzle is provided with valve, but the connected sum of the switching control valve chamber of valve and atmosphere is isolated.
7. preparation method according to claim 6 is characterized in that: described mozzle is communicated to the inert fluid source, and inert fluid can enter tube chamber by mozzle; On described mozzle, be provided with Pressure gauge, described Pressure gauge can be tested the pressure of inert fluid in the mozzle.
8. according to claim 4 or 5 described preparation methods, it is characterized in that: the method for described sealing and fixing is: fix with clip on the outer wall of pipe, described clip is fixed on first closing cock and/or second closing cock and fills on the outer wall of pipe at part place of pipe.
9. preparation method according to claim 1 is characterized in that: the method for described sulfuration is: pipe to be vulcanized is placed vulcanizing press, in 160-200 ℃, the following sulfuration of 10-15MPa 4-10min.
10. preparation method according to claim 1 is characterized in that: the method for described sulfuration is: pipe to be vulcanized is placed mould, then mould is positioned in the steam vulcanization (cure) jar, in 140-165 ℃, the following sulfuration of 0.2-0.08MPa 20-60min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101061466A CN102139537A (en) | 2010-01-29 | 2010-01-29 | Preparation method of rubber tube |
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| CN2010101061466A CN102139537A (en) | 2010-01-29 | 2010-01-29 | Preparation method of rubber tube |
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| CN102139537A true CN102139537A (en) | 2011-08-03 |
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| CN2010101061466A Pending CN102139537A (en) | 2010-01-29 | 2010-01-29 | Preparation method of rubber tube |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058732A (en) * | 2015-08-26 | 2015-11-18 | 阔丹凌云汽车胶管有限公司 | Preparation method for air conditioner rubber pipe |
| CN107718393A (en) * | 2017-11-29 | 2018-02-23 | 四川福翔科技有限公司 | Rubber tube vulcanization process and its application |
| CN118330197A (en) * | 2024-04-11 | 2024-07-12 | 广东富森汽车零部件制造有限公司 | Automobile rubber pipeline production process |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030720A (en) * | 1988-01-14 | 1989-02-01 | 辽宁省科学技术情报研究所 | A kind of manufacturing process of fibre wound coreless rubber pipe |
| CN2088474U (en) * | 1991-02-28 | 1991-11-13 | 北京化工学院 | Tube expanding device for thermol contraction tube |
| JP2891597B2 (en) * | 1992-09-29 | 1999-05-17 | 山下ゴム株式会社 | Rubber bending pipe manufacturing equipment |
| CN1792620A (en) * | 2005-12-30 | 2006-06-28 | 刘建平 | Tech, for producing sebific duct of silicon rubber and special mould core thereof |
| US20090091066A1 (en) * | 2007-09-20 | 2009-04-09 | Michael Sleva | Method of making an improved balloon cuff tracheostomy tube |
-
2010
- 2010-01-29 CN CN2010101061466A patent/CN102139537A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1030720A (en) * | 1988-01-14 | 1989-02-01 | 辽宁省科学技术情报研究所 | A kind of manufacturing process of fibre wound coreless rubber pipe |
| CN2088474U (en) * | 1991-02-28 | 1991-11-13 | 北京化工学院 | Tube expanding device for thermol contraction tube |
| JP2891597B2 (en) * | 1992-09-29 | 1999-05-17 | 山下ゴム株式会社 | Rubber bending pipe manufacturing equipment |
| CN1792620A (en) * | 2005-12-30 | 2006-06-28 | 刘建平 | Tech, for producing sebific duct of silicon rubber and special mould core thereof |
| US20090091066A1 (en) * | 2007-09-20 | 2009-04-09 | Michael Sleva | Method of making an improved balloon cuff tracheostomy tube |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105058732A (en) * | 2015-08-26 | 2015-11-18 | 阔丹凌云汽车胶管有限公司 | Preparation method for air conditioner rubber pipe |
| CN107718393A (en) * | 2017-11-29 | 2018-02-23 | 四川福翔科技有限公司 | Rubber tube vulcanization process and its application |
| CN118330197A (en) * | 2024-04-11 | 2024-07-12 | 广东富森汽车零部件制造有限公司 | Automobile rubber pipeline production process |
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Application publication date: 20110803 |