CN109851756A - Polyurethane high molecule material processing technique on loudspeaker - Google Patents
Polyurethane high molecule material processing technique on loudspeaker Download PDFInfo
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- CN109851756A CN109851756A CN201910031554.0A CN201910031554A CN109851756A CN 109851756 A CN109851756 A CN 109851756A CN 201910031554 A CN201910031554 A CN 201910031554A CN 109851756 A CN109851756 A CN 109851756A
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- loudspeaker
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Abstract
Polyurethane high molecule material processing technique on loudspeaker, the processing technology include following process flow: step 1: raw material preparation: A material: polyalcohol: 80%-95%；Catalyst: 0.5%-7%；Color: 0.5%-2%；Water: 0.2%-0.5%, B material: the ratio of isocyanates, the A material and B material is 100:40-60.Preparation process horn pad produced of the present invention, the horn pad of corresponding hardness can be assembled according to the actual installation place that loudspeaker is installed, therefore realize that the horn pad of different hardness rationally assembles, and the formula that the present invention uses is environment-friendly materials, the horn pad produced is heat-resisting, oil resistant, anticorrosive and anti-aging property are excellent, therefore the service life of horn pad is substantially prolonged, service life can extend to 15 years as long as by eight before, and the technique is more reasonable, the quality of horn pad is not only increased, and improves the production efficiency of horn pad.
Description
Technical field
The present invention relates to the polyurethane high molecule material processing techniques on loudspeaker, belong to rubber material and silica gel material
Expect the innovation of technical field.
Background technique
Loudspeaker is also known as " loudspeaker ", is a kind of energy transducer for electric signal being changed into acoustical signal, the performance of loudspeaker is excellent
The bad influence to sound quality is very big, and loudspeaker is a most weak device in stereo set, and for acoustics, it
A most important component again, loudspeaker it is many kinds of, and price differs greatly, and audio electric energy passes through electromagnetism, piezoelectricity
Or electrostatic effect, make its cone or diaphragm vibration and generates resonance (sympathetic response) with the air of surrounding and make a sound.Sound horn
It will be vibrated when vibration, this vibration will generate counteracting with sound, especially for middle low frequency, so sound equipment installs loudspeaker additional
The main purpose of washer is: resonance reduced, keeps loudspeaker installation more solid, horn pad is generally divided into two kinds, and one is wood washer,
Another kind is plastic washer, and conventional horn mat material matter is mainly rubber currently on the market, more in environmental issue, hardness and color
Sample requirement, service life etc. receive significant limitation.Traditional rubber horn pad is needed by five links
Finished product can be made, i.e. raw rubber is plasticated, and is cooperated, and is kneaded, semi-finished product preparation and vulcanizing treatment molding, smell weight, and can only do one
The hardness of kind black color and hardness 60-80 degree, service life most 8 years, and easily mouldy aging.
Summary of the invention
The present invention processes work for the polyurethane high molecule material on loudspeaker in view of the deficienciess of the prior art, providing
The advantages of skill, the diversification of horn pad hardness and color, environmental protection and long service life which produces, to solve above-mentioned background
The problem of technology is previously mentioned.
The technical scheme to solve the above technical problems is that the polyurethane high molecule material on loudspeaker adds
Work technique, the processing technology include following process flow: step 1: raw material preparation: A material: polyalcohol: 80% -95%；Catalysis
Agent: 0.5% -7%；Color: 0.5% -2%；Water: 0.2% -0.5%, B material: isocyanates, the ratio that the A material and B expect are
100:40-60；Step 2: mixed raw material: the empty barrel for being used to mixing is clean, other colors or auxiliary agent cannot be remained,
After polyester polyether polyol is uncapped, stirring in 5-8 minutes is first carried out, speed of agitator is set in 800-1200 revs/min, by raw material
Measure water content；According to formulation dosage ratio, gradually all kinds of raw materials are added in mixing tank；Mixing tank is moved to later and is stirred
It mixes area to be stirred 10-15 minutes, then water content is verified in measurement；Step 3: it is fed in PU filling machine: when charging, stopping
Only machine perfusion opens material cylinder lid corresponding on machine, and the raw material prepared is added in board accumulator, used when charging
Funnel filtering is filtered, it is after the completion of charging, material cylinder cover lock is good；Step 4: measurement of discharge is with when test cup: machine is debugged to test
Flow status places cup special to peeling button weight on electronic scale, is connect the A material that machine is spued using the cup special after peeling
Good to weigh, A material surveys three glasss, records three glasss of raw material net weight, calculates the coefficient of pump speed and flow, produces and match further according to current board
The ratio of side, the pump speed of adjustment B material, is to meet the recipe requirements to reach the flow-rate ratio of A:B, tests after the completion of flowrate proportioning,
By PU filling machine restore to can production status, after head hybrid precast is installed, test cup is set according to discharge-amount and is spat
Number of seconds out checks CT, RT, TFT and the FRD value of test glass；Step 5: perfusion and mode locking: both hands hold board hand cradle, and it is clear to press MC key
Pipette tips are washed, then press blowing key, dry up pipette tips, spit material before being perfused in advance；Pipette tips are directed at mold material feeding, material feeding must be uniformly injected into
In 45-55 degrees Celsius of mold, after material feeding, two side handle of upper cover is held with right-hand man, gently shuts mold, it then will lock
The locking of mould handle；Step 6: die sinking takes product: after the completion of perfusion, waiting 6 minutes maturation periods, cures to timer alarm
It completes, puts on protective gloves, unclamp the mode locking handle of two sides, hold the handle of mold upper cover two sides, firmly lift upper cover, put down gently
On frame, sets about from the clout on periphery, catch product, product is taken out out of die cavity；Step 7: it punching deburring: will take out
Product afterwards is placed on cooling 3-5 minutes on cooling frame, after in the positioning mold insert of product insertion punching cutter, bottom plate is pushed into and is cut out
In bed, while two punching buttons are pressed, pull out bottom plate, taken out the product being punched out of positioning mold insert, packed.
Further, the polyalcohol is one of pure and mild polyether polyol of polyester polyols, and the polyether polyol uses
One of polyoxypropyleneglycol, the pure and mild polytetrahydrofuran diol of polypropylene oxide three.
Further, the isocyanates using toluene di-isocyanate(TDI) (TDI), isophorone diisocyanate (IPDI),
Methyl diphenylene diisocyanate (MDI), dicyclohexyl methyl hydride diisocyanate (HMDI), hexamethylene diisocyanate
(HDI) and one of lysine diisocyanate (LDI).
Further, it is placed in drying box and dries 10-20 minutes after the step 2 Hollow barrel cleaning, the empty barrel after drying
Cooled to room temperature.
Further, the PU filling machine preheats 25-30 minutes before the use.
Further, A expects that barrel and the inside of B material barrel are provided with agitating device.
The invention has the following advantages:
(1) preparation process of the present invention horn pad produced, the actual installation place that can be installed according to loudspeaker are assembled corresponding
The horn pad of hardness, therefore realize that the horn pad of different hardness rationally assembles, and the formula that the present invention uses is environmentally friendly material
Material, the horn pad produced is heat-resisting, oil resistant, anticorrosive and anti-aging property are excellent, therefore substantially prolongs the use of horn pad
In the service life, as long as service life can extend to 15 years by eight before, and the technique is more reasonable, not only increases loudspeaker
The quality of pad, and improve the production efficiency of horn pad.
(2) production technology volume of the present invention can produce as needed the horn pad of different colours, and then can satisfy city
Demand of the field to horn pad color, improves the attraction and the market competitiveness of horn pad.
Detailed description of the invention
Fig. 1 is process flow chart of the invention.
Specific embodiment
Below in conjunction with the embodiment of the present invention and attached drawing, technical solution in the embodiment of the present invention carries out clear, complete
Ground description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on this
Embodiment in invention, every other reality obtained by those of ordinary skill in the art without making creative efforts
Example is applied, shall fall within the protection scope of the present invention.
Embodiment one: the present invention is provided to the polyurethane high molecule material processing technique on loudspeaker, the processing technologys
Including following process flow: step 1: raw material preparation: polyoxypropyleneglycol: 915 kilograms；Catalyst: 65 kilograms；Red color
Cream: 17 kilograms；Water: 3 kilograms, B material: toluene di-isocyanate(TDI): 450 kilograms；Step 2: the sky of mixing mixed raw material: will be used to
Bucket is clean, cannot remain other colors or auxiliary agent, after polyester polyether polyol is uncapped, first carries out stirring in 5 minutes, stirs
It mixes revolving speed and is set in 800 revs/min, raw material is measured into water content；According to formulation dosage ratio, gradually all kinds of raw materials are added
Enter in mixing tank；Mixing tank is moved to stirring area later to be stirred 10 minutes, then water content is verified in measurement；Step 3: add
Expect in PU filling machine: when charging, stopping machine perfusion, material cylinder lid corresponding on machine is opened, the raw material prepared is added
Enter in board accumulator, when charging, is filtered with filter tunnel, it is after the completion of charging, material cylinder cover lock is good；Step 4: measurement of discharge is matched
When test cup: machine is debugged to test flow status, and cup special is placed to peeling button weight on electronic scale, after peeling
Cup special A that machine is spued material is connected into weighings, A material surveys three glasss, record three glasss of raw material net weight, calculating pump speed and flow
Coefficient adjusts the pump speed of B material, is to meet this to match to reach the flow-rate ratio of A:B further according to the ratio of current board institute factory formula
Fang Yaoqiu, test flowrate proportioning after the completion of, by PU filling machine restore to can production status, head hybrid precast is installed
Afterwards, the discharge number of seconds that test cup is set according to discharge-amount, checks CT, RT, TFT and the FRD value of test glass；Step 5: perfusion and lock
Mould: both hands hold board hand cradle, press MC key cleaning pipette tips, then press blowing key, dry up pipette tips, spit material before being perfused in advance；By pipette tips pair
Quasi-mode has material feeding, and material feeding must be uniformly injected into 45-55 degrees Celsius of mold, after material feeding, hold upper cover two sides with right-hand man
Handle gently shuts mold, then locks mode locking handle；Step 6: die sinking takes product: after the completion of perfusion, waiting 6 minutes
Maturation period, to timer alarm i.e. cure complete, put on protective gloves, unclamp the mode locking handle of two sides, hold mold upper cover
The handle of two sides, firmly lifts upper cover, puts down gently on frame, sets about from the clout on periphery, catch product, by product out of die cavity
It takes out；Step 7: punching deburring: the product after taking-up is placed on cooling 3-5 minutes on cooling frame, product is embedded in punching cutter
Positioning mold insert in after, bottom plate is pushed into cutting, while pressing two punching buttons, pulls out bottom plate, is taken out of positioning mold insert
The product being punched out, is packed.
In the present invention: being placed in drying box and dry 10 minutes after the cleaning of step 2 Hollow barrel, the empty barrel after drying is natural
It is cooled to room temperature.
In the present invention: PU filling machine preheats 25 minutes before the use.
In the present invention: the inside of A material barrel and B material barrel is provided with agitating device
Embodiment two: the present embodiment and the distinguishing characteristics of embodiment one are:
Polyurethane high molecule material processing technique on loudspeaker, the processing technology include following process flow: step 1:
Raw material preparation: A material: polypropylene oxide triol: 910 kilograms；Catalyst: 68 kilograms；Orange color: 19 kilograms；Water: 3 kilograms, B
Material: toluene di-isocyanate(TDI): 460 kilograms；Step 2: mixed raw material: the empty barrel for being used to mixing is clean, it cannot be remained
His color or auxiliary agent after polyester polyether polyol is uncapped, first carry out stirring in 8 minutes, and speed of agitator is set in 1200 revs/min
Raw material is measured water content by clock；According to formulation dosage ratio, gradually all kinds of raw materials are added in mixing tank；It will mix later
Charging basket moves to stirring area and is stirred 15 minutes, and then water content is verified in measurement；Step 3: it is fed in PU filling machine: adding
When material, stop machine perfusion, material cylinder lid corresponding on machine is opened, the raw material prepared is added in board accumulator, charging
When, it is filtered with filter tunnel, it is after the completion of charging, material cylinder cover lock is good；Step 4: measurement of discharge is with when test cup: by machine tune
Cup special is placed to peeling button weight on electronic scale to test flow status, is spat machine using the cup special after peeling by examination
A material out connects weighing, and A material surveys three glasss, records three glasss of raw material net weight, the coefficient of pump speed and flow is calculated, further according to current machine
The ratio of platform institute factory formula, the pump speed of adjustment B material, is to meet the recipe requirements to reach the flow-rate ratio of A:B, and test flow is matched
Than after the completion, by PU filling machine restore to can production status, after head hybrid precast is installed, set and surveyed according to discharge-amount
The discharge number of seconds of test glass checks CT, RT, TFT and the FRD value of test glass；Step 5: perfusion and mode locking: both hands hold board hand cradle,
MC key cleaning pipette tips are pressed, then press blowing key, pipette tips is dried up, spits material before being perfused in advance；Pipette tips are directed at mold material feeding, material feeding must be uniformly
45-55 degrees Celsius of mold of injection in, after material feeding, hold two side handle of upper cover with right-hand man, gently shut mold, so
Mode locking handle is locked afterwards；Step 6: die sinking takes product: after the completion of perfusion, 6 minutes maturation periods is waited, to timer alarm
I.e. curing is completed, and is put on protective gloves, is unclamped the mode locking handle of two sides, hold the handle of mold upper cover two sides, firmly lift
Lid is put down gently on frame, sets about from the clout on periphery, catch product, product is taken out out of die cavity；Step 7: punching deburring:
Product after taking-up is placed on cooling 5 minutes on cooling frame, after in the positioning mold insert of product insertion punching cutter, bottom plate is pushed away
Enter in cutting, while pressing two punching buttons, pull out bottom plate, takes out the product being punched out of positioning mold insert, packed.
In the present invention: being placed in drying box and dry 20 minutes after the cleaning of step 2 Hollow barrel, the empty barrel after drying is natural
It is cooled to room temperature.
In the present invention: PU filling machine preheats 30 minutes before the use.
In the present invention: the inside of A material barrel and B material barrel is provided with agitating device.
Embodiment three: the present embodiment and the distinguishing characteristics of embodiment one and embodiment two are:
Polyurethane high molecule material processing technique on loudspeaker, the processing technology include following process flow: step 1:
Raw material preparation: A material: polytetrahydrofuran diol: 923 kilograms；Catalyst: 60 kilograms；Yellow color: 14 kilograms；Water: 3 kilograms, B
Material: methyl diphenylene diisocyanate (MDI): 480 kilograms；Step 2: mixed raw material: the empty barrel for being used to mixing is cleaned dry
Only, other colors or auxiliary agent cannot be remained, after polyester polyether polyol is uncapped, advanced stirring in 7 minutes, speed of agitator setting
At 1000 revs/min, raw material is measured into water content；According to formulation dosage ratio, mixing tank gradually is added in all kinds of raw materials
It is interior；Mixing tank is moved to stirring area later to be stirred 13 minutes, then water content is verified in measurement；Step 3: it is fed to PU filling
It infuses in machine: when charging, stopping machine perfusion, material cylinder lid corresponding on machine is opened, board storage is added in the raw material prepared
In material cylinder, when charging, filtered with filter tunnel, it is after the completion of charging, material cylinder cover lock is good；Step 4: measurement of discharge, which is matched, when to be tested
Cup: machine is debugged to test flow status, and cup special is placed to peeling button weight on electronic scale, the cup special after peeling is used
The A material that machine is spued is connected into weighing, A material surveys three glasss, records three glasss of raw material net weight, the coefficient of pump speed and flow is calculated, then
According to the ratio of current board institute factory formula, the pump speed of B material is adjusted, is to meet the recipe requirements to reach the flow-rate ratio of A:B,
Test after the completion of flowrate proportioning, by PU filling machine restore to can production status, after head hybrid precast is installed, according to spitting
Output sets the discharge number of seconds of test cup, checks CT, RT, TFT and the FRD value of test glass；Step 5: perfusion and mode locking: both hands are held
Firmly board hand cradle presses MC key cleaning pipette tips, then presses blowing key, dries up pipette tips, spits material before being perfused in advance；By pipette tips alignment mold note
Material, material feeding must be uniformly injected into 45-55 degrees Celsius of mold, after material feeding, hold two side handle of upper cover with right-hand man, gently
Mold is shut, then locks mode locking handle；Step 6: die sinking takes product: after the completion of perfusion, 6 minutes maturation periods are waited,
It cures and completes to timer alarm, put on protective gloves, unclamp the mode locking handle of two sides, hold the handle of mold upper cover two sides
Hand firmly lifts upper cover, puts down gently on frame, sets about from the clout on periphery, catch product, product is taken out out of die cavity；Step
Rapid seven: punching deburring: being placed on cooling 3-5 minutes on cooling frame for the product after taking-up, by the positioning of product insertion punching cutter
After in mold insert, bottom plate is pushed into cutting, while pressing two punching buttons, pulls out bottom plate, takes out punching out of positioning mold insert
Good product, carries out packaging
In the present invention: it is placed in drying box and dries 18 minutes after the cleaning of step 2 Hollow barrel, the empty barrel natural cooling after drying
To room temperature.
In the present invention: PU filling machine preheats 28 minutes before the use.
In the present invention: the inside of A material barrel and B material barrel is provided with agitating device.
Using the formula for the polyurethane high molecule material on loudspeaker of the invention, the polyurethane high molecule produced
Material can be used in replacing existing rubber material and silica gel material on loudspeaker.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and
Within principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (6)
1. for the polyurethane high molecule material processing technique on loudspeaker, it is characterised in that: the processing technology includes following work
Skill process: step 1: raw material preparation: A material: polyalcohol: 80% -95%；Catalyst: 0.5% -7%；Color: 0.5% -2%；
Water: 0.2% -0.5%, B material: the ratio of isocyanates, the A material and B material is 100:40-60；Step 2: mixed raw material: will
It is clean for the empty barrel of mixing, other colors or auxiliary agent cannot be remained, after polyester polyether polyol is uncapped, first carries out 5-
Stirring in 8 minutes, speed of agitator are set in 800-1200 revs/min, and raw material is measured water content；According to formulation dosage ratio
Gradually all kinds of raw materials are added in mixing tank for example；Mixing tank is moved to stirring area later to be stirred 10-15 minutes, is then surveyed
Amount verifying water content；Step 3: it is fed in PU filling machine: when charging, stopping machine perfusion, by material cylinder corresponding on machine
Lid is opened, and the raw material prepared is added in board accumulator, when charging, is filtered with filter tunnel, after the completion of charging, by material cylinder lid
It locks；Step 4: measurement of discharge is with when test cup: machine being debugged to test flow status, cup special is placed to electronic scale
The A material that machine is spued is connected weighing using the cup special after peeling by upper peeling button weight, and A material surveys three glasss, records three glasss of raw materials
Net weight calculates the coefficient of pump speed and flow, further according to the ratio of current board institute factory formula, the pump speed of B material is adjusted, to reach
The flow-rate ratio of A:B is to meet the recipe requirements, test flowrate proportioning after the completion of, by PU filling machine restore to can production status,
After head hybrid precast is installed, the discharge number of seconds of test cup is set according to discharge-amount, checks the CT of test glass, RT, TFT and
FRD value；Step 5: perfusion and mode locking: both hands hold board hand cradle, press MC key cleaning pipette tips, then press blowing key, dry up pipette tips,
Material is spat before perfusion in advance；Pipette tips are directed at mold material feeding, material feeding must be uniformly injected into 45-55 degrees Celsius of mold, after material feeding,
Two side handle of upper cover is held with right-hand man, gently mold is shut, then locks mode locking handle；Step 6: die sinking takes product:
After the completion of perfusion, 6 minutes maturation periods are waited, cures and completes to timer alarm, put on protective gloves, unclamp the lock of two sides
Mould handle holds the handle of mold upper cover two sides, firmly lifts upper cover, puts down gently on frame, sets about from the clout on periphery, catch
Product takes out product out of die cavity；Step 7: the product after taking-up punching deburring: is placed on cooling frame cooling 3-5 points
Bottom plate is pushed into cutting, while pressing two punching buttons by clock after in the positioning mold insert of product insertion punching cutter, is drawn
Bottom plate out takes out the product being punched out of positioning mold insert, is packed.
2. the polyurethane high molecule material processing technique according to claim 1 on loudspeaker, it is characterised in that: institute
Stating polyalcohol is one of pure and mild polyether polyol of polyester polyols, and the polyether polyol uses polyoxypropyleneglycol, gathers
One of pure and mild polytetrahydrofuran diol of propylene oxide three.
3. the polyurethane high molecule material processing technique according to claim 1 on loudspeaker, it is characterised in that: institute
Isocyanates is stated using toluene di-isocyanate(TDI) (TDI), isophorone diisocyanate (IPDI), diphenylmethane diisocyanate
Ester (MDI), dicyclohexyl methyl hydride diisocyanate (HMDI), hexamethylene diisocyanate (HDI) and lysine diisocyanate
One of ester (LDI).
4. the polyurethane high molecule material processing technique according to claim 1 on loudspeaker, it is characterised in that: institute
It states to be placed in drying box after step 2 Hollow barrel cleans and dry 10-20 minutes, the empty barrel cooled to room temperature after drying.
5. the polyurethane high molecule material processing technique according to claim 1 on loudspeaker, it is characterised in that: institute
PU filling machine is stated to preheat before the use 25-30 minutes.
6. the polyurethane high molecule material processing technique according to claim 1 on loudspeaker, it is characterised in that: A
The inside of material barrel and B material barrel is provided with agitating device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910031554.0A CN109851756A (en) | 2019-01-14 | 2019-01-14 | Polyurethane high molecule material processing technique on loudspeaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910031554.0A CN109851756A (en) | 2019-01-14 | 2019-01-14 | Polyurethane high molecule material processing technique on loudspeaker |
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| Publication Number | Publication Date |
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| CN109851756A true CN109851756A (en) | 2019-06-07 |
Family
ID=66894651
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910031554.0A Pending CN109851756A (en) | 2019-01-14 | 2019-01-14 | Polyurethane high molecule material processing technique on loudspeaker |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116147013A (en) * | 2023-02-13 | 2023-05-23 | 北京慧峰仁和科技股份有限公司 | Circulating cooling water recovery device of steam turbine |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116147013A (en) * | 2023-02-13 | 2023-05-23 | 北京慧峰仁和科技股份有限公司 | Circulating cooling water recovery device of steam turbine |
| CN116147013B (en) * | 2023-02-13 | 2023-10-13 | 北京慧峰仁和科技股份有限公司 | Circulating cooling water recovery device of steam turbine |
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