CN109760347A - A kind of production method of environment-friendly silicon rubber foaming tube - Google Patents
A kind of production method of environment-friendly silicon rubber foaming tube Download PDFInfo
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- CN109760347A CN109760347A CN201811643993.9A CN201811643993A CN109760347A CN 109760347 A CN109760347 A CN 109760347A CN 201811643993 A CN201811643993 A CN 201811643993A CN 109760347 A CN109760347 A CN 109760347A
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- silicon rubber
- foaming tube
- rubber foaming
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Abstract
The production method that the present invention discloses a kind of environment-friendly silicon rubber foaming tube, comprising the following steps: raw mixture is put into open mill, and connects the water receiving pipe of refrigeration machine on a mill；Open mill and refrigeration machine are opened, by raw mixture clot at preliminary mixture；Preliminary mixture is put in the unpowered circular discs of extruder；Extruder is opened, and adjusts the degree of eccentricity, obtains extrudate；Extrudate is put into aluminium alloy sink and is heated, first cure is completed；Extrudate is put into tunnel type heating oven and is heated, second segment vulcanization is completed, obtains silicon rubber foaming tube；Silicon rubber foaming tube is cut；Silicon rubber foaming tube is expanded and detachable skeleton is installed；Wherein, raw mixture is included in pore former, inorganic powder, vulcanizing system and methyl ethylene rubber compound.The disassembly of silicon rubber foaming tube made by the production method of the environment-friendly silicon rubber foaming tube is simple, easy for installation, resilience is good, enclasping force is strong, perspiration wicking good.
Description
Technical field
The present invention relates to the technical field of foamed products more particularly to a kind of production sides of environment-friendly silicon rubber foaming tube
Method.
Background technique
Silicon rubber foaming tube meets the detection of U.S. FDA food-grade, and product is high-intensitive, and resilience is good, and deformation rate is low, high-elastic
Property, weatherability, high-low temperature resistant, acid and alkali-resistance, frosting is anti-skidding, perspires, and used plastic skeleton production cost is low, is easy to raw
It produces, high production efficiency, and there is recyclable reconstruction grain to use.In silicon rubber foaming field, silicon rubber foaming agent is commonly used are as follows: chemistry
Foaming agent azodiisobutyronitrile (NIBN), production, storage are supervised by hazardous chemical, and damage people can be discharged in production process
The by-product of somatic nerves can destroy atmospheric ozone layer.
In bicycle art, the grip material that uses are as follows: plastics, rubber, silicon rubber foaming (with molding production) can not deposit
In following problems: weather-proof, high-low temperature resistant is poor, not anti-skidding, summer is hot, and winter freezes hand, partially firmly without grip feeling, on handle when installation
It is stained with a suds lubricant or dish washing liquid etc., when winter installs, is scalded with hot water and is easy installation.Above step installation 20
Minute or more, but lubricant residual has certain influence to handle enclasping force, easily skids, has to personal safety hidden when riding
Suffer from.
Summary of the invention
It is an object of the present invention to: a kind of production method of environment-friendly silicon rubber foaming tube, the environment friendly silicon are provided
The disassembly of silicon rubber foaming tube made by the production method of rubber pange pipe is simple, easy for installation, resilience is good, enclasping force is strong,
It is perspiration wicking good, it is generally applicable on the lever of health and fitness facilities and protection, baby's perambulator, children's scooter, fishing rod tool and bicycle,
Has the characteristics that anti-skidding, the light installation of protection.
To achieve this purpose, the present invention adopts the following technical scheme: a kind of production method of environment-friendly silicon rubber foaming tube, packet
Include following steps:
Raw mixture is put into open mill, and connects the water receiving pipe of refrigeration machine on a mill；
Open mill and refrigeration machine are opened, by raw mixture clot at preliminary mixture；
Preliminary mixture is put in the unpowered circular discs of extruder；
Extruder is opened, and adjusts the degree of eccentricity, obtains extrudate；
Extrudate is put into aluminium alloy sink and is heated, first cure is completed；
Extrudate is put into tunnel type heating oven and is heated, second segment vulcanization is completed, obtains silicon rubber foaming tube；
Silicon rubber foaming tube is cut；
Silicon rubber foaming tube is expanded and detachable skeleton is installed；
Wherein, raw mixture is included in pore former, inorganic powder, vulcanizing system and methyl ethylene rubber compound.
As a kind of perferred technical scheme, the pore former is organic foaming agent or inorganic foaming agent.
As a kind of perferred technical scheme, the organic foaming agent is sulphonyl hydrazine compound, azodiisobutyronitrile, azo
Cyclohexanenitrile, azobisisoheptonitrile, azodicarbonamide, 2,2 '-azos bis- (2- methylbutyronitriles), bis- (2, the 4- diformazans of 2,2 '-azos
Base valeronitrile) and 1, any one in 1- azo-bis- (1- acetoxyl group -1- phenyl-ethane).
As a kind of perferred technical scheme, the inorganic foaming agent is expandable microspheres, hollow glass micropearl, glass fibers
Any one in dimension, sodium bicarbonate, nanometer calcium carbonate, modified starch, ammonium hydrogen carbonate, ammonium carbonate and ammonium nilrite.
As a kind of perferred technical scheme, the mass parts of each ingredient are respectively as follows: the pore-forming in the raw mixture
The mass parts of agent be 1%-30%, the mass parts of the inorganic powder are 0.1%-20%, the mass parts of the vulcanizing system be 1%-5% and
The mass parts of the methyl ethylene rubber compound are 90%-95%.
As a kind of perferred technical scheme, filtering filter cloth, the mistake are provided on the water inlet of the aluminium alloy sink
The structure for filtering filter cloth is 3 layer of 1200 mesh.
It is as a kind of perferred technical scheme, described that extrudate to be put into time for being heated in aluminium alloy sink be 30
Second.
As a kind of perferred technical scheme, silicon rubber foaming tube is cut, specifically:
Silicon rubber foaming tube is cut using automatic cutter.
As a kind of perferred technical scheme, the length of the tunnel type heating oven is any one in 30 meters -40 meters
Kind.
It is as a kind of perferred technical scheme, described that silicon rubber foaming tube is expanded, specifically:
Compound bag weaved, starting extension facility, so that silicon rubber foaming tube is set on is put on taper mould on extension facility
On taper mould and expand.
The invention has the benefit that a kind of production method of environment-friendly silicon rubber foaming tube is provided, the environment friendly silicon rubber
The disassembly of silicon rubber foaming tube made by the production method of glue foaming tube is simple, easy for installation, resilience is good, enclasping force is strong, row
Sweat is good, physical synthesis performance is good, generally applicable in the lever of health and fitness facilities and protection, baby's perambulator, children's scooter, fishing rod work
On tool and bicycle, has the characteristics that anti-skidding, the light installation of protection.And entire production method step is succinct, simple process, life
It produces high-efficient.
Detailed description of the invention
The present invention will be further described in detail below based on the drawings and embodiments.
Fig. 1 is a kind of flow chart of the production method of environment-friendly silicon rubber foaming tube described in embodiment.
Specific embodiment
To further illustrate the technical scheme of the present invention below with reference to the accompanying drawings and specific embodiments.
As shown in Figure 1, in this present embodiment, a kind of production method of environment-friendly silicon rubber foaming tube, comprising the following steps:
Raw mixture is put into open mill, and connects the water receiving pipe of refrigeration machine on a mill；Open mill and refrigeration machine are opened, it will be former
Expect mixture clot at preliminary mixture；Preliminary mixture is put in the unpowered circular discs of extruder；Extruder is opened, and
The degree of eccentricity is adjusted, extrudate is obtained；Extrudate is put into aluminium alloy sink and is heated, first cure is completed；Extrusion
Object is put into tunnel type heating oven and is heated, and completes second segment vulcanization, obtains silicon rubber foaming tube；Use automatic cutter
Silicon rubber foaming tube is cut；Silicon rubber foaming tube is expanded and detachable skeleton is installed；Wherein, raw mixture
It is included in pore former, inorganic powder, vulcanizing system and methyl ethylene rubber compound.
The raw mixture mixed is thoroughly mixed in open mill, the water receiving pipe conveying tap water of refrigeration machine guarantees
Temperature of the raw mixture in mill can control between 20 DEG C to 50 DEG C, stir on open mill 15 times or more, with PE film
Shield starts open mill, raw mixture is unloaded open mill by clot, is cut into automatic cutter on the surface of raw mixture
30 millimeters of width is spare.
Preliminary mixture before extrusion, the both ends of the preliminary mixture of 30 millimeters of width is docked, are placed in unpowered
It in circular discs, is continuously put at circle from inside to outside when putting, until occupying circular discs, preliminary mixture feeds extruder
Spout, selection starts extruder after needing the mold of product size, and adjusting the degree of eccentricity can be obtained extrudate.
Expand reserved 10 millimeters of the silicon rubber foaming tube both sides finished for winding detachable skeleton, determines when facilitating installation
Card slot on detachable skeleton is in line by winding opposite direction and is completely pulled out by position, direct tension handle when installation, silicon rubber hair
Bubble pipe, which can be completely encapsulated on the handle of bicycle, to be used.
Detachable skeleton for the compression strength that has reached, composite material using 1.4 millimeters thicks, 26 millimeters of skeleton internal diameter,
28.8 millimeters of outer diameter, 153 millimeters of length, pulling force handle length are 70 millimeters, and winding edge has 1 millimeter of groove, wherein 0.4
Millimeter prevents from falling off after winding with left-hand thread card slot for being fastened, and the material of detachable skeleton uses PP, PE and fibre
Tie up material.
The pore former foams in 90 DEG C of formation, density of the inorganic powder for reducing silicon rubber foaming tube, the sulphur
Change system is tasteless nontoxic, and the methyl ethylene rubber compound is as main glue.
Detachable skeleton squeezes out winding disassembly skeleton using high-intensitive composite material, and compressive resistance is high, high temperature resistant, is convenient for silicon
The expansion lower deformation of rubber pange pipe, handle installation easy to disassemble.
In this present embodiment, the pore former is organic foaming agent or inorganic foaming agent.
Wherein, the organic foaming agent is sulphonyl hydrazine compound, azodiisobutyronitrile, azo cyclohexanenitrile, azo two different heptan
Nitrile, azodicarbonamide, 2,2 '-azos bis- (2- methylbutyronitriles), 2,2 '-azos bis- (2,4- methyl pentane nitriles) and 1,1- are even
Any one in nitrogen-bis- (1- acetoxyl group -1- phenyl-ethanes).
Wherein, the inorganic foaming agent is expandable microspheres, hollow glass micropearl, glass fibre, sodium bicarbonate, nano-calcium carbonate
Any one in calcium, modified starch, ammonium hydrogen carbonate, ammonium carbonate and ammonium nilrite.
It is blended using organic foaming agent or inorganic foaming agent, effectively solves poison gas release and silicon rubber in Conventional process
The residual and poor performance of glue foaming product noxious material.
In this present embodiment, the mass parts of each ingredient are respectively as follows: the mass parts of the pore former in the raw mixture
It is 1%, the mass parts of the inorganic powder are 0.1%, the mass parts of the vulcanizing system are 1% and the methyl ethylene rubber compound
Mass parts be 90%.
In this present embodiment, filtering filter cloth, the knot of the filtering filter cloth are provided on the water inlet of the aluminium alloy sink
Structure is 3 layer of 1200 mesh.
The length of the aluminium alloy sink be 6 meters to 12 meters in any length, wherein aluminium alloy layer with a thickness of 4 millimeters.
Using electrically heated mode, the internal temperature for controlling the aluminium alloy sink is any temperature in 90 DEG C to 100 DEG C.
It is wherein, described that extrudate to be put into time for being heated in aluminium alloy sink be 30 seconds.
In order to guarantee the consistency of product pore-forming, extrudate by the aluminium alloy sink time control 30 seconds with
On, extrudate is to foam, and vulcanization maturity reaches 80% or more, and obtained extrudate section forms the stomata of fine uniform, uses hand
Flicking is without impression.
In this present embodiment, the length of the tunnel type heating oven is any one in 30 meters -40 meters.
The internal temperature control of the tunnel type heating oven is between 120 DEG C to 180 DEG C, using Teflon belt to crowded
Object is transmitted out.
It completes that rebound can be obtained unvulcanized 20% in the aluminium alloy sink again by the tunnel type heating oven
Property good, silicon rubber that stomata is fine and smooth foaming.
It is in this present embodiment, described that silicon rubber foaming tube is expanded, specifically: on the taper mould on extension facility
Put on compound bag weaved, starting extension facility, so that silicon rubber foaming tube is set on taper mould and expands.
Compound bag weaved a length of 2 meters, 100 millimeters of diameter of stretching balloon dilator, the extension facility for being mounted on air-driven type (expands
Open machine) on, high-intensitive compound bag weaved serviceable bife is up to 100,000 times or more.
The taper mould between 5 millimeters to 19 millimeters is selected, it is 150 millimeters long, it is fixed in support pipe, is worn on taper mould
It is upper compound bag weaved, and fixed aerodynamic drag force bar, the silicon rubber foaming tube for taking needs to expand will be compound bag weaved from silicon rubber hair
The inside of bubble pipe passes through, and is fixed on taper mould, starts extension facility, and aerodynamic drag force bar pulls silicon rubber foaming tube to pass through cone
Mould is spent, taper mould is removed on aerodynamic drag force bar, by the extra compound bag weaved position for filling in installation taper mould, and being put into can
It dismantles on 10 millimeters that skeleton is reserved, pushes bracket that silicon rubber foaming tube is automatically pushed in detachable skeleton.
The internal diameter of silicon rubber foaming tube can be 15.5 millimeters, 16 millimeters, outer diameter can for 28.5 millimeters, 29 millimeters, 30 millimeters,
31 millimeters, surface is fine grinding sand shape and corase grinding sand shape, and there is mill skin shape on surface.After complete cure, cut into automatic cutter
130 millimeters long of silicon rubber foaming handle, is directly neatly placed in aluminium alloy high temperature baking tray, the fixed silicon rubber hair of high-temperature baking
The performance of pipe is steeped, 130 DEG C of high temperature are toasted 1 hour, and it is 0.55g/cm that density, which may be implemented,3, hardness be 50 degree silicon rubber foaming
Handle.
When doing silicon rubber foaming handle with 200 tons of hydraulic presses, can according to need hairline, develop different molds, upper mold with
The temperature of lower die controls the standby material vulcanization that investment relative weight is weighed at 180 DEG C, the time 300 seconds, and density, which can be made, is
0.6g/cm3, hardness be 50 degree silicon rubber foaming handle.
The silicon rubber foaming handle that above-mentioned production method is completed is subjected to permanent deformation test and (imitates long-term expansion silicon rubber
Foam handle deflection), test condition: the outer diameter of bike metal bar is 22 millimeters, and dry high-temperature cabinet temperature is 100 DEG C, is dried
The roasting time is 300 hours, as follows with 30 minutes data comparisons detaching detachable skeleton 1 minute:
Physical property comparison: silicon rubber foaming tube handle made by this production method and chemical blowing pipe handle are compared such as
Under:
100 DEG C of high temperature, baking time 300 hours, 1 year on detachable skeleton of the silicon rubber foaming tube that product simulation has been expanded
More storage periods, from above data, deflection is little, does not influence silicon rubber foaming tube to the enclasping force of bike metal pipe.
The silicon rubber foaming handle comparison physical property of chemical blowing handle, the performance of various aspects is relatively.
In the present embodiment, a kind of production method of environment-friendly silicon rubber foaming tube, specifically:
1, raw mixture is put into open mill, and connects the water receiving pipe of refrigeration machine on a mill；
2, open mill and refrigeration machine are opened, by raw mixture clot at preliminary mixture；
3, preliminary mixture is put in the unpowered circular discs of extruder；
4, extruder is opened, and adjusts the degree of eccentricity, obtains extrudate；
5, extrudate is put into aluminium alloy sink and is heated, complete first cure；
6, extrudate is put into tunnel type heating oven and is heated, completed second segment vulcanization, obtain silicon rubber foaming tube；
7, silicon rubber foaming tube is cut using automatic cutter；
8, silicon rubber foaming tube is expanded and detachable skeleton is installed.
It is to be understood that above-mentioned specific embodiment is only that presently preferred embodiments of the present invention and institute's application technology are former
Reason, within the technical scope of the present disclosure, variation that anyone skilled in the art is readily apparent that or
Replacement, should be covered by the scope of protection of the present invention.
Claims (10)
1. a kind of production method of environment-friendly silicon rubber foaming tube, which comprises the following steps:
Raw mixture is put into open mill, and connects the water receiving pipe of refrigeration machine on a mill；
Open mill and refrigeration machine are opened, by raw mixture clot at preliminary mixture；
Preliminary mixture is put in the unpowered circular discs of extruder；
Extruder is opened, and adjusts the degree of eccentricity, obtains extrudate；
Extrudate is put into aluminium alloy sink and is heated, first cure is completed；
Extrudate is put into tunnel type heating oven and is heated, second segment vulcanization is completed, obtains silicon rubber foaming tube；
Silicon rubber foaming tube is cut；
Silicon rubber foaming tube is expanded and detachable skeleton is installed；
Wherein, raw mixture is included in pore former, inorganic powder, vulcanizing system and methyl ethylene rubber compound.
2. a kind of production method of environment-friendly silicon rubber foaming tube according to claim 1, which is characterized in that the pore-forming
Agent is organic foaming agent or inorganic foaming agent.
3. a kind of production method of environment-friendly silicon rubber foaming tube according to claim 2, which is characterized in that described organic
Foaming agent be sulphonyl hydrazine compound, azodiisobutyronitrile, azo cyclohexanenitrile, azobisisoheptonitrile, azodicarbonamide, 2,2 '-
Azo bis- (2- methylbutyronitriles), 2,2 '-azos bis- (2,4- methyl pentane nitriles) and 1,1- azo-bis- (1- acetoxyl group -1- benzene
Base-ethane) in any one.
4. a kind of production method of environment-friendly silicon rubber foaming tube according to claim 2, which is characterized in that described inorganic
Foaming agent be expandable microspheres, hollow glass micropearl, glass fibre, sodium bicarbonate, nanometer calcium carbonate, modified starch, ammonium hydrogen carbonate,
Any one in ammonium carbonate and ammonium nilrite.
5. a kind of production method of environment-friendly silicon rubber foaming tube according to claim 1, which is characterized in that the raw material
The mass parts that the mass parts of each ingredient are respectively as follows: the pore former in mixture are 1%-30%, and the mass parts of the inorganic powder are
0.1%-20%, the vulcanizing system mass parts be 1%-5% and the mass parts of the methyl ethylene rubber compound are 90%-95%.
6. a kind of production method of environment-friendly silicon rubber foaming tube according to claim 1, which is characterized in that the aluminium closes
Filtering filter cloth is provided on the water inlet of Jinsui River slot, the structure of the filtering filter cloth is 3 layer of 1200 mesh.
7. a kind of production method of environment-friendly silicon rubber foaming tube according to claim 1, which is characterized in that described is squeezed
It is 30 seconds that object, which is put into time for being heated in aluminium alloy sink, out.
8. a kind of production method of environment-friendly silicon rubber foaming tube according to claim 1, which is characterized in that described to silicon
Rubber pange pipe is cut, specifically:
Silicon rubber foaming tube is cut using automatic cutter.
9. a kind of production method of environment-friendly silicon rubber foaming tube according to claim 1, which is characterized in that the tunnel
The length of formula heating oven is any one in 30 meters -40 meters.
10. a kind of production method of environment-friendly silicon rubber foaming tube according to claim 1, which is characterized in that described right
Silicon rubber foaming tube is expanded, specifically:
Compound bag weaved, starting extension facility, so that silicon rubber foaming tube is set on is put on taper mould on extension facility
On taper mould and expand.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811643993.9A CN109760347A (en) | 2018-12-29 | 2018-12-29 | A kind of production method of environment-friendly silicon rubber foaming tube |
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| CN201811643993.9A CN109760347A (en) | 2018-12-29 | 2018-12-29 | A kind of production method of environment-friendly silicon rubber foaming tube |
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| CN206870222U (en) * | 2017-06-23 | 2018-01-12 | 苏州九维电气制造有限公司 | A kind of shrinkage tube expander location structure |
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2018
- 2018-12-29 CN CN201811643993.9A patent/CN109760347A/en active Pending
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|---|---|---|---|---|
| CN1673280A (en) * | 2004-03-22 | 2005-09-28 | 徐英强 | Making process silicone rubber sponge backing board |
| CN101070430A (en) * | 2007-05-16 | 2007-11-14 | 石建国 | Silica-gel foaming-gel heat-insulation pipe and preparing method |
| CN101262122A (en) * | 2008-04-14 | 2008-09-10 | 浙江万马集团电气有限公司 | An expansion method for cool contraction cable accessory |
| CN103923401A (en) * | 2014-04-16 | 2014-07-16 | 深圳市沃尔核材股份有限公司 | Cold-shrinkable foamed sleeve pipe, patterned sleeve pipe and preparation method thereof |
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