CN106084759A - A kind of immediately heating water heater inner bag and processing method thereof - Google Patents
A kind of immediately heating water heater inner bag and processing method thereof Download PDFInfo
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- CN106084759A CN106084759A CN201610459754.2A CN201610459754A CN106084759A CN 106084759 A CN106084759 A CN 106084759A CN 201610459754 A CN201610459754 A CN 201610459754A CN 106084759 A CN106084759 A CN 106084759A
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- screw extruder
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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
- C08L77/00—Compositions of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Compositions of derivatives of such polymers
- C08L77/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
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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
- B29B9/00—Making granules
- B29B9/02—Making granules by dividing preformed material
- B29B9/06—Making granules by dividing preformed material in the form of filamentary material, e.g. combined with extrusion
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0005—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fibre reinforcements
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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
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/0005—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fibre reinforcements
- B29C2045/0008—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor using fibre reinforcements the fibres being oriented randomly
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- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Manufacturing & Machinery (AREA)
- Reinforced Plastic Materials (AREA)
- Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Abstract
The present invention provides a kind of immediately heating water heater inner bag and processing method thereof, it is characterized in that, described processing method comprises the following steps: by nylon 6 that mass ratio is 19:1 and polyformaldehyde mix homogeneously, and nylon 6 and the polyformaldehyde mixture of mix homogeneously are put in the first twin-screw extrusion hopper；Being entered by mixture in the first double screw extruder and heat, add alkali-free glass fibre in the extrusion hopper of the first double screw extruder, described alkali-free glass fibre is 1:4 with nylon 6, the weight ratio of polyformaldehyde mixture, by mixture water-cooled pelletizing；Compound particles is dried；Mixture is put in the second twin-screw extrusion hopper, the mixture of the second double screw extruder is injected in mould.The water heater liner dielectric strength of the present invention is high, and this composite has higher intensity and toughness simultaneously, owing to using mould to be processed inner bag, easy to process.
Description
Technical field
The present invention relates to field of water heaters, in particular to a kind of immediately heating water heater inner bag and processing method thereof.
Background technology
Inner bag is the heart of water heater, and its characteristic affects product bulk life time.Inner bag material typically has rustless steel at present
Inner bag, crystal inner liner and enamel inner container.Owing to stainless steel inner container technology easily realizes, production equipment, R&D costs are relatively low, market
Upper more than 90% product uses stainless steel inner container.
Under normal circumstances, stainless steel inner container uses stainless steel material to be coiled strip, needs to spread its tail and cuts, then turn sequence punching,
Flange, volume circle, welding, pressure test leak-detecting complete the processing of inner bag, and welding quality quality plays a decisive role to inner bag is corrosion-resistant.Weldering
Connect quality and there is larger difference, typically result in seam because of equipment difference and welding technique, welding personnel operant skill level etc.
Gap corrosion and welding seam leakage, affect the effectiveness of product.
The enamel on enamel inner container surface is nonmetallic materials, both non-corrosive, also Non-scale, has stronger voltage endurance capability.But
The enamel inner container being common suffers from the drawback that, fishscale is the critical defect of common enamel inner bag；Owing to enamel belongs to silicic acid
Salt, can slowly dissolve, thinning in high-temperature water, i.e. boiling water is weightless；It addition, Acidic water has destruction greatly to enamel inner container
Property.And enamel inner container generally use enamel is coated in into suitably process after steel plate on, by the temperature burning of more than 900 DEG C
Becoming, make to produce the strongest adhesion between enamel and steel plate, make them be integrally forming, this processing technique generally uses external
Production equipment, Productive statistics is higher.How providing the convenient use demand that can meet water heater liner of a kind of processing technique is mesh
The front major issue needing to solve.
Summary of the invention
Present invention aim at providing a kind of easily to shape, good endurance, process simple immediately heating water heater inner bag and
Processing method.
The above-mentioned purpose of the present invention is realized by the technical characteristic of independent claims, and dependent claims is with alternative or has
The mode of profit develops the technical characteristic of independent claims.
For reaching above-mentioned purpose, the present invention proposes the processing method of a kind of immediately heating water heater inner bag, described processing method
Comprise the following steps:
Step 1, by nylon 6 that mass ratio is 19:1 and polyformaldehyde mix homogeneously, and by the nylon 6 of mix homogeneously and poly-first
Aldehyde mixture is put in the first twin-screw extrusion hopper.
Step 2, enters the mixture in the first twin-screw extrusion hopper in the first double screw extruder and heats, first pair
The temperature of screw extruder is 220 DEG C to 250 DEG C, adds alkali-free glass fine in the extrusion hopper of the first double screw extruder
Dimension, described alkali-free glass fibre is 1:4 with nylon 6, the weight ratio of polyformaldehyde mixture, described first double screw extruder extrusion
Described said mixture, the rotating speed of described first double screw extruder is 120r/min.
Step 3, by the mixture water-cooled pelletizing in step 2.
Step 4, is put in the dehydrator of 130 DEG C drying 2.5 hours by the compound particles in step 3.
Step 5, is put into the compound particles in step 4 in second twin-screw extrusion hopper, by described compound particles
It is heated to 265 DEG C.
Step 6, is injected into said mixture in mould, if processing cabinet body, injection time is 6.5s, injection mold
Temperature is 90 DEG C, and dwell pressure is 63bar, dwell time 2.5s, takes out after cooling 40s；If processing inner bag dual-side, during injection
Between be 5.5s, injection mold is 90 DEG C, and dwell pressure is 45bar, and the dwell time is 2s, cooling 25s after take out.
Another aspect of the present invention, it is proposed that a kind of Instant heating type inner bag, in described Instant heating type inner bag includes immediately heating water heater
Gallbladder includes the nylon 6 that mass ratio is 76%, the polyformaldehyde of 4%, the alkali-free glass fibre of 20%.
From above scheme, the present invention uses nylon 6, polyformaldehyde, the composite of glass fibre to make in water heater
Gallbladder, the water heater liner dielectric strength of the present invention is high, and this composite has higher intensity and toughness simultaneously, owing to using mould
Inner bag is processed by tool, easy to process.Use the first double screw extruder and the second double screw extruder that product is squeezed
Pressure processing, it is possible to realize the automatic business processing of product, improve product efficiency, decrease artificial input, saved cost.
As long as should be appreciated that all combinations of aforementioned concepts and the extra design described in greater detail below are at this
A part for the subject matter of the disclosure is can be viewed as in the case of the design of sample is the most conflicting.It addition, required guarantor
All combinations of the theme protected are considered as a part for the subject matter of the disclosure.
Detailed description of the invention
In order to know more about the technology contents of the present invention, it is described as follows especially exemplified by specific embodiment.
Embodiment of the disclosure and must not be intended to include all aspects of the invention.Should be appreciated that presented hereinbefore multiple
Design and embodiment, and describe in more detail below those design and embodiment can in many ways in any one
Plant and implement, this is because design disclosed in this invention and embodiment are not limited to any embodiment.It addition, the present invention is public
Some aspects opened can be used alone, or otherwise any appropriately combined uses with disclosed by the invention.
A kind of processing method of immediately heating water heater inner bag, described processing method comprises the following steps:
Step 1, by nylon 6 that mass ratio is 19:1 and polyformaldehyde mix homogeneously, and by the nylon 6 of mix homogeneously and poly-first
Aldehyde mixture is put in the first twin-screw extrusion hopper.
Step 2, enters the mixture in the first twin-screw extrusion hopper in the first double screw extruder and heats, first pair
The temperature of screw extruder is 220 DEG C to 250 DEG C, adds alkali-free glass fine in the extrusion hopper of the first double screw extruder
Dimension, described alkali-free glass fibre is 1:4 with nylon 6, the weight ratio of polyformaldehyde mixture, described first double screw extruder extrusion
Described said mixture, the rotating speed of described first double screw extruder is 120r/min.
Step 3, by the mixture water-cooled pelletizing in step 2.
Step 4, is put in the dehydrator of 130 DEG C drying 2.5 hours by the compound particles in step 3.
Step 5, is put into the compound particles in step 4 in second twin-screw extrusion hopper, by described compound particles
It is heated to 265 DEG C.
Step 6, is injected into said mixture in mould, if processing cabinet body, injection time is 6.5s, injection mold
Temperature is 90 DEG C, and dwell pressure is 63bar, dwell time 2.5s, takes out after cooling 40s；If processing inner bag dual-side, injection
Time is 5.5s, and injection mold is 90 DEG C, and dwell pressure is 45bar, and the dwell time is 2s, takes out after cooling 25s.
As preferably, nylon 6 in described step 1 and polyformaldehyde need to be 100 drying temperature respectively before combination
DEG C drying baker in dry 3 hours.
As preferably, described first double screw extruder is 10, and described alkali-free glass fibre is from the 5th first pair of spiral shell
The extrusion hopper of bar extruder adds.
As preferably, described first double screw extruder is 8, and described alkali-free glass fibre is from the 4th first pair of spiral shell
The extrusion hopper of bar extruder adds.
As preferably, described second double screw extruder is 3, wherein the heating temperature of 3 the second double screw extruders
Degree is followed successively by 250 DEG C, 255 DEG C and 265 DEG C.
As preferably, a diameter of 8 mesh of the nylon 6 in described step 3, polyformaldehyde compound particles thing.
A kind of immediately heating water heater inner bag, described inner bag is manufactured by above-mentioned processing method, in described immediately heating water heater
Gallbladder includes the nylon 6 that mass ratio is 76%, the polyformaldehyde of 4%, the alkali-free glass fibre of 20%..
From above technical scheme, the present invention uses nylon 6, polyformaldehyde, the composite of glass fibre to make hot water
Device inner bag, the water heater liner dielectric strength of the present invention is high, and this composite has higher intensity and toughness simultaneously, owing to adopting
With mould, inner bag is processed, easy to process.Use the first double screw extruder and the second double screw extruder that product is entered
Row extrusion process, it is possible to realize the automatic business processing of product, improve product efficiency, decreases artificial input, has saved one-tenth
This.
It it is below section Example of the present invention.
Embodiment 1
Being placed on nylon 6 and polyformaldehyde to dry in the dehydrator that temperature is 100 DEG C and dry 3 hours, taking mass ratio is 19:1
Nylon 6 and polyformaldehyde, by mix homogeneously placed in the vessel, pour nylon 6 and the polyformaldehyde mixture of mix homogeneously into
In the extrusion hopper of one double screw extruder, the rotating speed of the first double screw extruder is 120r/min, the first double screw extruder
Be 8, wherein the temperature of the first double screw extruder controls successively is 220 DEG C, 224 DEG C, 228 DEG C, 232 DEG C, 236 DEG C, 240
DEG C, 245 DEG C, 250 DEG C, described alkali-free glass fibre, nylon 6, polyformaldehyde mixture sequentially pass through First double screw extruder,
Second the first double screw extruder, the 3rd the first double screw extruder, the 4th the first double screw extruder, the 5th
First double screw extruder, the 6th the first double screw extruder, the 7th the first double screw extruder, the 8th first pair of spiral shell
Water-cooled pelletizing after bar extruder, adds alkali-free glass fibre, wherein in the extrusion hopper of the 4th the first double screw extruder
Alkali-free glass fibre is 1:4 with nylon 6, the mass ratio of polyformaldehyde mixture, the granularity 8 of the mixture particle after described pelletizing
Mesh, after mixture particle is input in dehydrator, the drying temperature of described dehydrator is 130 DEG C, and drying time is 2.5 little
Time；Exporting the extrusion hopper of the second double screw extruder after drying machine drying, the temperature of described second double screw extruder is
265 DEG C, the mixture after heating is injected in mould by described second double screw extruder, if described mould is inner bag processing mould
Tool, then the second double screw extruder injects the time of mixture in mould is 6.5s, and injection mold temperature is 90 DEG C, pressurize pressure
Power is 63bar, dwell time 2.5s, and cool time takes out after 40s；If inner bag dual-side processing mold, then the second twin screw
It is 5.5s that extruder injects the time of mixture in mould, and injection mold temperature is 90 DEG C, and dwell pressure is 45bar, pressurize
Time 2s, takes out after 25s cool time.
Comparative example 1
Being placed on nylon 6 and polyformaldehyde to dry in the dehydrator that temperature is 100 DEG C and dry 3 hours, taking mass ratio is 19:1
Nylon 6 and polyformaldehyde, by mix homogeneously placed in the vessel, pour nylon 6 and the polyformaldehyde mixture of mix homogeneously into
In the extrusion hopper of one double screw extruder, the rotating speed of the first double screw extruder is 120r/min, the first double screw extruder
Being 4, wherein the temperature of the first double screw extruder controls to be 220 DEG C, 230 DEG C, 240 DEG C, 250 DEG C successively, the double spiral shell of First
Nylon 6 and polyformaldehyde mixture are extruded by bar extruder, are transported to the extrusion of the 2nd the first double screw extruder by conveyer belt
Hopper, adds alkali-free glass fibre, wherein alkali-free glass fibre and Buddhist nun in the extrusion hopper of the 2nd the first double screw extruder
Dragon 6, the mass ratio of polyformaldehyde mixture are 1:4, and described alkali-free glass fibre, nylon 6, polyformaldehyde mixture sequentially pass through second
Water-cooled pelletizing after platform the first double screw extruder, the 3rd the first double screw extruder, the 4th the first double screw extruder, institute
State granularity 8 mesh of mixture particle after pelletizing, after mixture particle is input in dehydrator, the drying temperature of described dehydrator
Being 130 DEG C, drying time is 2.5 hours；The extrusion hopper of the second double screw extruder is exported after drying machine drying, described
The temperature of two double screw extruders is 265 DEG C, and the mixture after heating is injected in mould by described second double screw extruder, if
Described mould is inner bag processing mold, then the second double screw extruder injects the time of mixture in mould is 6.5s, injection
Mold temperature is 90 DEG C, and dwell pressure is 63bar, dwell time 2.5s, and cool time takes out after 40s；If inner bag dual-side
Processing mold, then the second double screw extruder injects the time of mixture in mould is 5.5s, and injection mold temperature is 90 DEG C,
Dwell pressure is 45bar, dwell time 2s, and cool time takes out after 25s.
Embodiment 2
Being placed on nylon 6 and polyformaldehyde to dry in the dehydrator that temperature is 100 DEG C and dry 3 hours, taking mass ratio is 19:1
Nylon 6 and polyformaldehyde, by mix homogeneously placed in the vessel, pour nylon 6 and the polyformaldehyde mixture of mix homogeneously into
In the extrusion hopper of one double screw extruder, the rotating speed of the first double screw extruder is 120r/min, the first double screw extruder
Be 10, wherein the temperature of the first double screw extruder controls successively is 220 DEG C, 223 DEG C, 226 DEG C, 229 DEG C, 232 DEG C, 235
DEG C, 238 DEG C, 241 DEG C, 244 DEG C, 247 DEG C, 250 DEG C, described alkali-free glass fibre, nylon 6, polyformaldehyde mixture sequentially pass through
First double screw extruder, second the first double screw extruder, the 3rd the first double screw extruder, the 4th first pair
Screw extruder, the 5th the first double screw extruder, the 6th the first double screw extruder, the 7th the first twin-screw extrusion
Water-cooled after machine, the 8th the first double screw extruder, the 9th the first double screw extruder, the tenth the first double screw extruder
Pelletizing, in the extrusion hopper of the 5th the first double screw extruder add alkali-free glass fibre, wherein alkali-free glass fibre with
Nylon 6, the mass ratio of polyformaldehyde mixture are 1:4, granularity 8 mesh of the mixture particle after described pelletizing, after by mixture grain
Son is input in dehydrator, and the drying temperature of described dehydrator is 130 DEG C, and drying time is 2.5 hours；After drying machine drying defeated
Going out the extrusion hopper to the second double screw extruder, the temperature of described second double screw extruder is 265 DEG C, described second pair of spiral shell
Mixture after heating is injected in mould by bar extruder, if described mould is inner bag processing mold, then the second twin-screw extrusion
It is 6.5s that machine injects the time of mixture in mould, and injection mold temperature is 90 DEG C, and dwell pressure is 63bar, the dwell time
2.5s, takes out after 40s cool time；If inner bag dual-side processing mold, then the second double screw extruder injects in mould
The time of mixture is 5.5s, and injection mold temperature is 90 DEG C, and dwell pressure is 45bar, dwell time 2s, cool time 25s
Rear taking-up.
Comparative example 2
Being placed on nylon 6 and polyformaldehyde to dry in the dehydrator that temperature is 100 DEG C and dry 3 hours, taking mass ratio is 19:1
Nylon 6 and polyformaldehyde, by mix homogeneously placed in the vessel, pour nylon 6 and the polyformaldehyde mixture of mix homogeneously into
In the extrusion hopper of one double screw extruder, the rotating speed of the first double screw extruder is 120r/min, the first double screw extruder
Be 6, wherein the temperature of the first double screw extruder controls successively is 220 DEG C, 226 DEG C, 232 DEG C, 240 DEG C, 248 DEG C, 250
DEG C, described alkali-free glass fibre, nylon 6, polyformaldehyde mixture sequentially pass through First double screw extruder, second first pair
Screw extruder, the 3rd the first double screw extruder, the 4th the first double screw extruder, the 5th the first twin-screw extrusion
Water-cooled pelletizing after machine, the 6th the first double screw extruder, adds in the extrusion hopper of the 3rd the first double screw extruder
Alkali-free glass fibre, wherein alkali-free glass fibre is 1:4 with nylon 6, the mass ratio of polyformaldehyde mixture, mixing after described pelletizing
Granularity 8 mesh of polymer particle, after mixture particle is input in dehydrator, the drying temperature of described dehydrator is 130 DEG C, dry
The dry time is 2.5 hours；Exporting the extrusion hopper of the second double screw extruder after drying machine drying, described second twin screw squeezes
The temperature going out machine is 265 DEG C, and the mixture after heating is injected in mould by described second double screw extruder, if described mould is
Inner bag processing mold, then the second double screw extruder injects the time of mixture in mould is 6.5s, and injection mold temperature is
90 DEG C, dwell pressure is 63bar, dwell time 2.5s, and cool time takes out after 40s；If inner bag dual-side processing mold, then
It is 5.5s that second double screw extruder injects the time of mixture in mould, and injection mold temperature is 90 DEG C, and dwell pressure is
45bar, dwell time 2s, take out after 25s cool time.
Embodiment 3
Being placed on nylon 6 and polyformaldehyde to dry in the dehydrator that temperature is 100 DEG C and dry 3 hours, taking mass ratio is 19:1
Nylon 6 and polyformaldehyde, by mix homogeneously placed in the vessel, pour nylon 6 and the polyformaldehyde mixture of mix homogeneously into
In the extrusion hopper of one double screw extruder, the rotating speed of the first double screw extruder is 120r/min, the first double screw extruder
Be 8, wherein the temperature of the first double screw extruder controls successively is 220 DEG C, 224 DEG C, 228 DEG C, 232 DEG C, 236 DEG C, 240
DEG C, 245 DEG C, 250 DEG C, described alkali-free glass fibre, nylon 6, polyformaldehyde mixture sequentially pass through First double screw extruder,
Second the first double screw extruder, the 3rd the first double screw extruder, the 4th the first double screw extruder, the 5th
One double screw extruder, the 6th the first double screw extruder, the 7th the first double screw extruder, the 8th the first twin screw
Water-cooled pelletizing after extruder, adds alkali-free glass fibre, Qi Zhongwu in the extrusion hopper of the 4th the first double screw extruder
Alkali containing glass fibre is 1:4 with nylon 6, the mass ratio of polyformaldehyde mixture, granularity 8 mesh of the mixture particle after described pelletizing,
After mixture particle is input in dehydrator, the drying temperature of described dehydrator is 130 DEG C, and drying time is 2.5 hours；Dry
Dry machine exports the extrusion hopper of the second double screw extruder after drying, described second double screw extruder is 3, and described second
The temperature of double screw extruder is followed successively by 250 DEG C, 255 DEG C, 265 DEG C, and described mixture is through First the second twin-screw extrusion
Inject after machine, second the second double screw extruder, the 3rd the second double screw extruder in mould, if described mould is inner bag
Processing mold, then the second double screw extruder injects the time of mixture in mould is 6.5s, and injection mold temperature is 90 DEG C,
Dwell pressure is 63bar, dwell time 2.5s, and cool time takes out after 40s；If inner bag dual-side processing mold, then second
It is 5.5s that double screw extruder injects the time of mixture in mould, and injection mold temperature is 90 DEG C, and dwell pressure is
45bar, dwell time 2s, take out after 25s cool time.
Comparative example 3
Being placed on nylon 6 and polyformaldehyde to dry in the dehydrator that temperature is 100 DEG C and dry 3 hours, taking mass ratio is 19:1
Nylon 6 and polyformaldehyde, by mix homogeneously placed in the vessel, pour nylon 6 and the polyformaldehyde mixture of mix homogeneously into
In the extrusion hopper of one double screw extruder, the rotating speed of the first double screw extruder is 120r/min, the first double screw extruder
Being 4, wherein the temperature of the first double screw extruder controls to be 220 DEG C, 230 DEG C, 240 DEG C, 250 DEG C successively, the double spiral shell of First
Nylon 6 and polyformaldehyde mixture are extruded by bar extruder, are transported to the extrusion of the 2nd the first double screw extruder by conveyer belt
Hopper, adds alkali-free glass fibre, wherein alkali-free glass fibre and Buddhist nun in the extrusion hopper of the 2nd the first double screw extruder
Dragon 6, the mass ratio of polyformaldehyde mixture are 1:4, and described alkali-free glass fibre, nylon 6, polyformaldehyde mixture sequentially pass through second
Water-cooled pelletizing after platform the first double screw extruder, the 3rd the first double screw extruder, the 4th the first double screw extruder, institute
State granularity 8 mesh of mixture particle after pelletizing, after mixture particle is input in dehydrator, the drying temperature of described dehydrator
Being 130 DEG C, drying time is 2.5 hours；The extrusion hopper of the second double screw extruder is exported after drying machine drying, described
Two double screw extruders are 3, and the temperature of described second double screw extruder is followed successively by 250 DEG C, 255 DEG C, 265 DEG C, described mixed
Compound is through First the second double screw extruder, second the second double screw extruder, the 3rd the second double screw extruder
In rear injection mould, if described mould is inner bag processing mold, then the second double screw extruder injects mixture in mould
Time is 6.5s, and injection mold temperature is 90 DEG C, and dwell pressure is 63bar, dwell time 2.5s, and cool time takes out after 40s；
If inner bag dual-side processing mold, then the second double screw extruder injects the time of mixture in mould is 5.5s, injection
Mold temperature is 90 DEG C, and dwell pressure is 45bar, dwell time 2s, and cool time takes out after 25s.
Embodiment 4
Being placed on nylon 6 and polyformaldehyde to dry in the dehydrator that temperature is 100 DEG C and dry 3 hours, taking mass ratio is 19:1
Nylon 6 and polyformaldehyde, by mix homogeneously placed in the vessel, pour nylon 6 and the polyformaldehyde mixture of mix homogeneously into
In the extrusion hopper of one double screw extruder, the rotating speed of the first double screw extruder is 120r/min, the first double screw extruder
Be 10, wherein the temperature of the first double screw extruder controls successively is 220 DEG C, 223 DEG C, 226 DEG C, 229 DEG C, 232 DEG C, 235
DEG C, 238 DEG C, 241 DEG C, 244 DEG C, 247 DEG C, 250 DEG C, described alkali-free glass fibre, nylon 6, polyformaldehyde mixture sequentially pass through
First double screw extruder, second the first double screw extruder, the 3rd the first double screw extruder, the 4th first pair
Screw extruder, the 5th the first double screw extruder, the 6th the first double screw extruder, the 7th the first twin-screw extrusion
Water-cooled after machine, the 8th the first double screw extruder, the 9th the first double screw extruder, the tenth the first double screw extruder
Pelletizing, in the extrusion hopper of the 5th the first double screw extruder add alkali-free glass fibre, wherein alkali-free glass fibre with
Nylon 6, the mass ratio of polyformaldehyde mixture are 1:4, granularity 8 mesh of the mixture particle after described pelletizing, after by mixture grain
Son is input in dehydrator, and the drying temperature of described dehydrator is 130 DEG C, and drying time is 2.5 hours；After drying machine drying defeated
Going out the extrusion hopper to the second double screw extruder, described second double screw extruder is 3, described second double screw extruder
Temperature be followed successively by 250 DEG C, 255 DEG C, 265 DEG C, described mixture through First the second double screw extruder, second second
Inject in mould after double screw extruder, the 3rd the second double screw extruder, if described mould is inner bag processing mold, then the
It is 6.5s that two double screw extruders inject the time of mixture in mould, and injection mold temperature is 90 DEG C, and dwell pressure is
63bar, dwell time 2.5s, take out after 40s cool time；If inner bag dual-side processing mold, then the second twin-screw extrusion
It is 5.5s that machine injects the time of mixture in mould, and injection mold temperature is 90 DEG C, and dwell pressure is 45bar, the dwell time
2s, takes out after 25s cool time.
Comparative example 4
Being placed on nylon 6 and polyformaldehyde to dry in the dehydrator that temperature is 100 DEG C and dry 3 hours, taking mass ratio is 19:1
Nylon 6 and polyformaldehyde, by mix homogeneously placed in the vessel, pour nylon 6 and the polyformaldehyde mixture of mix homogeneously into
In the extrusion hopper of one double screw extruder, the rotating speed of the first double screw extruder is 120r/min, the first double screw extruder
Be 6, wherein the temperature of the first double screw extruder controls successively is 220 DEG C, 226 DEG C, 232 DEG C, 240 DEG C, 248 DEG C, 250
DEG C, described alkali-free glass fibre, nylon 6, polyformaldehyde mixture sequentially pass through First double screw extruder, second first pair
Screw extruder, the 3rd the first double screw extruder, the 4th the first double screw extruder, the 5th the first twin-screw extrusion
Water-cooled pelletizing after machine, the 6th the first double screw extruder, adds in the extrusion hopper of the 3rd the first double screw extruder
Alkali-free glass fibre, wherein alkali-free glass fibre is 1:4 with nylon 6, the mass ratio of polyformaldehyde mixture, mixing after described pelletizing
Granularity 8 mesh of polymer particle, after mixture particle is input in dehydrator, the drying temperature of described dehydrator is 130 DEG C, dry
The dry time is 2.5 hours；Exporting the extrusion hopper of the second double screw extruder after drying machine drying, described second twin screw squeezes
Going out machine is 3, and the temperature of described second double screw extruder is followed successively by 250 DEG C, 255 DEG C, 265 DEG C, and described mixture is through
Mould is injected after one the second double screw extruder, second the second double screw extruder, the 3rd the second double screw extruder
In, if described mould is inner bag processing mold, then the second double screw extruder injects the time of mixture in mould is 6.5s,
Injection mold temperature is 90 DEG C, and dwell pressure is 63bar, dwell time 2.5s, and cool time takes out after 40s；If inner bag two
Side processing mold, then the second double screw extruder injects the time of mixture in mould is 5.5s, and injection mold temperature is
90 DEG C, dwell pressure is 45bar, dwell time 2s, and cool time takes out after 25s.
To the inner bag performance test in each embodiment, result is as follows:
As above, shown in form, the mode using 4 the first double screw extruders, second double screw extruder to be 1 adds
The inner bag glass fibre that work goes out is assembled in a large number, and nylon 6 decomposes seriously, and the reliability of inner bag can not get ensureing, uses 6 first pair
Screw extruder, second double screw extruder are the inner bag glass fibre skewness that the mode of 1 is processed, nylon 6 points
Solve aggravation, although the inner bag product reliability of processing still can not be guaranteed, but relatively use 4 the first double screw extruder quality
Improve a lot.Be respectively adopted 8 the first double screw extruders, 10 the first double screw extruder glass fibre only have
Part exposes or without exposing situation, the Product Safety of processing is improved, but still the space being improved.
Being respectively adopted 4 the first double screw extruders, 6 the first double screw extruders, and the second double screw extruder is 3
The mode of platform processes inner bag relatively embodiment 1 and embodiment 2 product quality has a distinct increment, but still has outside segment glass fiber
Dew, be respectively adopted 8 the first double screw extruders, 10 the first double screw extruders, and the second double screw extruder for 3
Platform, the inner bag processed light is clean and tidy, and uniform color, quality and the security reliability of inner bag are guaranteed.
Although the present invention is disclosed above with preferred embodiment, so it is not limited to the present invention.Skill belonging to the present invention
Art field has usually intellectual, without departing from the spirit and scope of the present invention, when being used for a variety of modifications and variations.Cause
This, protection scope of the present invention is when being as the criterion depending on those as defined in claim.
Claims (7)
1. the processing method of an immediately heating water heater inner bag, it is characterised in that described processing method comprises the following steps:
Step 1, by nylon 6 that mass ratio is 19:1 and polyformaldehyde mix homogeneously, and mixes nylon 6 and the polyformaldehyde of mix homogeneously
Compound is put in the first twin-screw extrusion hopper；
Step 2, enters the mixture in the first twin-screw extrusion hopper in the first double screw extruder and heats, the first twin screw
The temperature of extruder is 220 DEG C to 250 DEG C, adds alkali-free glass fibre, institute in the extrusion hopper of the first double screw extruder
Stating alkali-free glass fibre with nylon 6, the weight ratio of polyformaldehyde mixture is 1:4, and described first double screw extruder extrusion is described
Said mixture, the rotating speed of described first double screw extruder is 120r/min；
Step 3, by the mixture water-cooled pelletizing in step 2；
Step 4, is put in the dehydrator of 130 DEG C drying 2.5 hours by the compound particles in step 3；
Step 5, is put into the compound particles in step 4 in second twin-screw extrusion hopper, is heated by described compound particles
To 265 DEG C；
Step 6, is injected into said mixture in mould, if processing cabinet body, injection time is 6.5s, injection mold temperature
Being 90 DEG C, dwell pressure is 63bar, dwell time 2.5s, takes out after cooling 40s；If processing inner bag dual-side, injection time is
5.5s, injection mold is 90 DEG C, and dwell pressure is 45bar, and the dwell time is 2s, takes out after cooling 25s.
The processing method of immediately heating water heater inner bag the most according to claim 1, it is characterised in that in described step 1
Nylon 6 and polyformaldehyde need to dry 3 hours in drying the drying baker that temperature is 100 DEG C respectively before combination.
The processing method of immediately heating water heater inner bag the most according to claim 1, it is characterised in that described first twin screw
Extruder is 10, and described alkali-free glass fibre adds from the extrusion hopper of the 5th the first double screw extruder.
The processing method of immediately heating water heater inner bag the most according to claim 1, it is characterised in that described first twin screw
Extruder is 8, and described alkali-free glass fibre adds from the extrusion hopper of the 4th the first double screw extruder.
The processing method of immediately heating water heater inner bag the most according to claim 1, it is characterised in that described second twin screw
Extruder is 3, and wherein the heating-up temperature of 3 the second double screw extruders is followed successively by 250 DEG C, 255 DEG C and 265 DEG C.
The processing method of immediately heating water heater inner bag the most according to claim 1, it is characterised in that in described step 3
A diameter of 8 mesh of nylon 6, polyformaldehyde compound particles thing.
7. an immediately heating water heater inner bag, it is characterised in that described inner bag is by the processing method system described in claim 1
Making, described immediately heating water heater inner bag includes the nylon 6 that mass ratio is 76%, the polyformaldehyde of 4%, and the alkali-free glass of 20% is fine
Dimension.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109627751A (en) * | 2018-11-30 | 2019-04-16 | 上海日之升科技有限公司 | Fire-retardant continuous long glass fiber reinforced PA6 material of one kind and preparation method thereof |
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| CN101805515A (en) * | 2010-03-17 | 2010-08-18 | 浙江俊尔新材料有限公司 | Wearing-resistant reinforcing polyamide/polyformaldehyde alloy material and method for preparing same |
| CN103267355A (en) * | 2013-05-31 | 2013-08-28 | 南车二七车辆有限公司 | Water storage type electric heater inner container and forming method thereof |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003238820A (en) * | 2002-02-20 | 2003-08-27 | Nidec Copal Corp | Antistatic resin material for optical instrument |
| CN101805515A (en) * | 2010-03-17 | 2010-08-18 | 浙江俊尔新材料有限公司 | Wearing-resistant reinforcing polyamide/polyformaldehyde alloy material and method for preparing same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109627751A (en) * | 2018-11-30 | 2019-04-16 | 上海日之升科技有限公司 | Fire-retardant continuous long glass fiber reinforced PA6 material of one kind and preparation method thereof |
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