CN109895412A - A kind of adapter moulding process - Google Patents
A kind of adapter moulding process Download PDFInfo
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- CN109895412A CN109895412A CN201910143393.4A CN201910143393A CN109895412A CN 109895412 A CN109895412 A CN 109895412A CN 201910143393 A CN201910143393 A CN 201910143393A CN 109895412 A CN109895412 A CN 109895412A
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Abstract
The invention discloses a kind of adapter moulding process, include the following steps: S1: weighing hollow glass microbead, Sanya ethylene diamine, F-12, dimethicone are added to preparation premix solution in adipic acid system polyesterols, it is added in charging bucket of high-pressure foaming machine after uniformly, obtains component A；S2: solid-state methyl diphenylene diisocyanate is put into heating in baking oven and is fused into liquid, is added in charging bucket of high-pressure foaming machine, obtains the B component；S3: mold assembly is carried out, and is preheated；S4: according to the component A of setting and the B component mixing ratio, moulding by casting adaptor body；S5: maturation process is carried out to the adaptor body of moulding by casting；S6: demoulding obtains the adaptor body；S7: hot-forming anti-attrition film；S8: anti-attrition film is pasted.Using the above ingredient and setting proportion, the foaming product of acquisition compression strength under equal densities is higher, has many advantages, such as that light weight, intensity are high, while simple process, high-efficient.
Description
Technical field
The invention belongs to emission system technical fields, more particularly, to a kind of adapter moulding process.
Background technique
Adapter (the lateral vibration damping that foreign countries are frequently referred to canister launch guided missile supports system) is the key that storing firing box portion
Part is mounted in the annular gap between guided missile and firing box, is played bearing in product storage, transport and emission process, is subtracted
The effects of initial disturbance when vibration, guiding and control transmitting, when transport and storage fixed guided missile, when transmitting play the guiding role,
And firing box is flown away from bullet.Material used by adapter mainly has rubber (such as natural rubber, butyl rubber), gathers
The mixture of the materials such as urethane elastomer, polyurethane foam or above-mentioned different materials, wherein with polyurethane elastomer and polyurethane
Foam is most widely used.
The case where structure of adapter is according to guided missile storage, transport and flat pad, especially to its quiet dynamic stress-
The case where deformation characteristic and mechanical creep performance requirement, is designed, mostly two class of open-core type and solid formula.Hollow-type structure is big
Multi-pass crosses pre-bending V-type column structure to meet adapter sound state force-deflection performance requirement, and real heart type structure then commonly uses bubble
Unique property possessed by foam material meets the quiet dynamic stress of adapter-deformation performance requirement.Traditional adapter has soft
The annular elastic gasket of elastic material production is glued by three kinds of unused materials (sponge plate, gasket body, polytetrafluoroethylene film)
Multilayered structure adapter etc. made of connecing, these adapter structures are more complicated, and preparation process is cumbersome, manufacture difficult to install.
The Chinese patent of Patent No. 2015109087236 discloses a kind of guided missile adapter co-curing moulding process, should
Patent is manual foaming, it is understood that there may be main raw material(s) mixing is uneven, cause foaming product performance unstable etc., and it is raw
Low efficiency is produced, is not suitable for the production of batch engineering, and manual foaming operation safety is low；The patent tiles after handling rubber and plastic boards
In mold bottom together foaming, due to rubber and plastic boards and two kinds of material differences of foaming product, there may be rubber and plastic boards after molding
The problems such as peel strength is low between foaming product, easy to crack；And two kinds of main raw material(s) combined polyethers and isocyanates mixing
After can generate rapidly reaction and foam, and generate a large amount of heat, first mix combined polyether, fire retardant in the patent, stirring
Uniformly, isocyanates is added, is stirred within 2min in the case where speed of agitator is 1200~1800r/min to being sufficiently mixed,
The operation may may generate foamable reaction before pouring into mold；In addition, the foamed material is only combined polyether, fire retardant
And isocyanates.
Summary of the invention
Aiming at the above defects or improvement requirements of the prior art, the present invention provides a kind of adapter moulding process, with isocyanide
Acid esters and adipic acid system polyesterols are main raw material(s), reinforcing material hollow glass microbead, catalyst Sanya ethylene diamine, foaming
Agent F-12 and stabilizer dimethicone are auxiliary material, the die for molding assembled are cast in after being sufficiently mixed, then pass through
Overcuring processing demoulding, finally pastes anti-attrition film, using the above ingredient and set proportion, the foaming product of acquisition is in phase
It is higher with compression strength under density, have many advantages, such as that light weight, intensity are high, solves the work for preparing adapter in the prior art
The technical issues of skill is complicated, inefficiency.
To achieve the above object, a kind of adapter moulding process is provided, is included the following steps:
S1: weighing 2 parts~4 parts of reinforcing material hollow glass microbead and activated, and weighs 0.1 part~0.3 part and urge
Agent Sanya ethylene diamine, 4 parts~6 parts of foaming agent F-12,1 part~3 parts of stabilizer dimethicone, will as adjuvant
The adjuvant is added to preparation premix solution in 100 parts of adipic acid system polyesterols, is then stirred with high speed agitator equal
It is added in charging bucket of high-pressure foaming machine after even, obtains component A；
S2: solid-state methyl diphenylene diisocyanate being put into baking oven and is heated, heating be fused into liquid, weigh 95 parts~
100 parts of isocyanates is added in charging bucket of high-pressure foaming machine, obtains B component；
S3: carrying out mold assembly, and mold after the assembly is completed, preheats mold, guarantees that mold temperature is 26 DEG C~50
℃；
S4: according to the mixing ratio of setting, respectively from S1, S2 in two charging bucket of high-pressure foaming machine by the component A
With the B component, it is poured into mold；
S5: after moulding by casting, maturation process is carried out, maturation process includes stabilization sub stage and maturation stage；
S6: demoulding obtains adaptor body；
S7: anti-attrition film is centrally placed on hot pressing die cavity plate, closes punch-pin by hot-forming anti-attrition film, will be hot
Compression mould is placed on hot press plate, to which after the mold is cooled, mould unloading takes out molding anti-attrition film；
S8: guide-soft-band special glue is smeared on the adaptor body surface, and pastes anti-attrition film.
Further, in step S2, mold assembly specifically comprises the following steps:
S21: gusset is mounted on spring seat pin (2), is connected and is fastened with standard component screw, guarantees matching requirements；
S22: will be in the assembly parts of the spring seat pin (2) and gusset (3) insertion mold molding locating shaft (6)；
S23: locating shaft (1) is inserted into the location hole of special-shaped moulded side panel (7) and spring seat pin (2)；
S24: the attachment screw on each type face of mold is tightened；
S25: extracting locating shaft (1), closes cover board (8) and casting lid and locks；Again by locating shaft insertion it is special-shaped at
In the location hole of template and spring seat pin, mold assembly is completed.
Further, in step S4, component A and B component mixing ratio are adjusted to 1~1.05:1 in foaming machine, and casting flow is
40kg/min~60kg/min, temperature are 20 DEG C~28 DEG C.
Further, in step S5, the technique of the stabilization sub stage is, it is to be foamed finish 4min~6min after, by mold
It pushes away foaming pouring area and stands 25min~30min；The maturation stage technique is to solidify 60min in a natural environment first
~120min then solidifies 50min~60min at 60 DEG C~70 DEG C.
Further, in step S6, the demoulding specifically comprises the following steps:
Cover board (8) and casting lid are dismantled, positioning insertion pin is extracted, unscrews attachment screw, the various face of mold is dismantled；By spiral shell
Foaming material leakage is cleaned out around nail and screw hole；
Locating shaft (6) will be formed with the dedicated demoulding tooling of adapter to take out from foaming piece；
Foaming material leakage in locating shaft (6) hole will be formed to clean out.
Further, in step S7, the temperature of hot-forming anti-attrition film is 90 DEG C~110 DEG C, pressing time 150min
~210min.
Further, in step S8, the pressure for pasting anti-attrition film is 0.1MPa, and the time is not less than 12 hours.
Further, in step S1, the activation method of the hollow glass microbead are as follows: the fertile blue coupling for being 85% with concentration
Agent impregnates hollow glass microbead for 24 hours, then dries at room temperature.
Further, in step S2, the component A need to stir 40min or more.
Further, in step S2, the temperature of solid isocyanate heating fusing is 60 DEG C~70 DEG C.
In general, through the invention it is contemplated above technical scheme is compared with the prior art, can obtain down and show
Beneficial effect:
(1) adapter moulding process of the invention, using isocyanates and adipic acid system polyesterols as main raw material(s), enhancing
Material hollow glass microbead, catalyst Sanya ethylene diamine, foaming agent F-12 and stabilizer dimethicone are auxiliary material,
Be cast in the die for molding assembled after being sufficiently mixed, demoulded using maturation process, finally paste anti-attrition film, use with
Upper ingredient is matched with defined by, and the foaming product of acquisition compression strength under equal densities is higher, has light weight, intensity high
The advantages that, solve the technical issues of complex process for preparing adapter in the prior art, inefficiency.
(2) adapter moulding process of the invention is poured foaming using equipment, and equipment has automatic stirring function,
Raw material can be made to be sufficiently mixed uniformly, product properties stability is good, and process of preparing is simple, easy to operate, high yield rate, raw
It produces high-efficient.
(3) adapter moulding process of the invention is added to reinforcing material hollow glass microbead in polyhydroxyl polyether, enhancing
The addition of material can significantly improve the intensity of hard polyurethane foaming plastics, improve internal stress distribution, to reduce the ruler of product
Very little change rate.
(4) adapter moulding process of the invention is designed using the structure that hardware and plastic products are integrated, first
First hardware spring seat pin and gusset are embedded in mold, blown rigid polyurethane foamed plastics is poured by equipment,
Integratively formed adaptor body.
(5) adapter moulding process of the invention after preparing foaming product, uses special bonding on adaptor body
Agent is bonded anti-attrition film, can fully ensure that adhesive strength, has good wearability, damping.
Detailed description of the invention
Fig. 1 is a kind of adapter moulding process flow process figure of the invention；
Fig. 2 is adaptor body cross-sectional view of the invention；
Fig. 3 is adaptor body die cut view of the invention；
Fig. 4 is adaptor body front view of the invention；
Fig. 5 is adaptor body rearview of the invention.
In all the appended drawings, same appended drawing reference indicates identical technical characteristic, specifically: 1- adaptor body foam
Plastics, 2- spring seat pin, 3- gusset, 4- moulded side panel, 5- positioning plate, 6- form locating shaft, 7- moulded side panel, 8- cover board.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.As long as in addition, technical characteristic involved in the various embodiments of the present invention described below that
Not constituting conflict between this can be combined with each other.
Fig. 1 is a kind of adapter moulding process flow process figure of the invention, as shown in Figure 1, a kind of adapter moulding process, makes
With mold integrated foam molding adaptor body, include the following steps:
S1: prepare raw material, weigh 2 parts~4 parts of reinforcing material hollow glass microbead (nanoscale) and activated, weighed
0.1 part~0.3 part of catalyst Sanya ethylene diamine, 4 parts~6 parts of foaming agent F-12,1 part~3 parts of stabilizer dimethyl
Above-mentioned adjuvant is added to preparation premix solution in 100 parts of adipic acid system polyesterols, places 72h by silicone oil, then with height
Fast blender is stirring evenly and then adding into charging bucket of high-pressure foaming machine, is opened stirring 40min or more, is obtained component A；By solid-state hexichol
Dicyclohexylmethane diisocyanate, which is put into baking oven, is heated to 60 DEG C~70 DEG C, and solid isocyanate heating is fused into liquid, is weighed
95 parts~100 parts of isocyanates is added in charging bucket of high-pressure foaming machine, obtains B component；
The activation method of hollow glass microbead are as follows: hollow glass microbead is impregnated for 24 hours with the fertile blue coupling agent that concentration is 85%,
Then it dries at room temperature.Nanoscale hollow glass microbead after activation, is evenly distributed in hard polyurethane foam product, nothing
Agglomeration, adhesive force is strong, and filling effect is good.
S2: metal embedded part spring seat pin 2 and gusset 3 are assembled, and then carry out mold assembly, and mold assembly is completed
Afterwards, mold preheating is carried out, guarantees that mold temperature is 26 DEG C~50 DEG C；
S3: according to the mixing ratio of setting, from S1 in two charging bucket of high-pressure foaming machine by the component A and the B
Component is poured into mold, sets foaming machine raw material temperature as 20 DEG C~28 DEG C, component A and B component mix in foaming machine
Than being adjusted to (1~1.05): 1, casting flow is 40kg/min~60kg/min, is calculated according to mold cavity volume and extrudate density
Poured weights carry out moulding by casting according to poured weights and the equipment flow set duration of pouring.
S4: maturation process, maturation process include stabilization sub stage and maturation stage, wherein stabilization sub stage technique is to complete S3
Casting after, it is to be foamed to finish, after 4min~6min, mold is pushed away into foaming and pouring area and stands 25min~30min；Curing
Stage process be first in a natural environment solidify 60min~120min, then at 60 DEG C~70 DEG C solidify 50min~
60min；
S5: being demoulded when mold temperature is lower than 40 DEG C or less, obtain adaptor body, and when demoulding should be by the inverse of conjunction film
Sequence carries out；
S6: anti-attrition film is centrally placed on hot pressing die cavity plate by hot-forming anti-attrition film, guarantees anti-attrition film edge
Groove center line almost symmetry on cavity plate, closes punch-pin.Hot pressing die is placed on hot press plate, hot pressing temperature 100
DEG C ± 10 DEG C, pressing time 150min~210min, 40 DEG C are cooled to hereinafter, the mould unloading anti-attrition of taking out forming is thin to mold
Film, the material of anti-attrition film are polytetrafluoroethylplastic plastic guide-soft-bands；Using special bonding agent to anti-attrition on adaptor body
Film is bonded, and can fully ensure that adhesive strength, has good wearability, damping；
S7: smearing guide-soft-band special glue in adaptor body surface mount anti-attrition film, pressure 0.1MPa, and the time is not low
In 12 hours.
Adapter moulding process of the invention, using isocyanates and adipic acid system polyesterols as main raw material(s), strengthening material
Expect that hollow glass microbead, catalyst Sanya ethylene diamine, foaming agent F-12 and stabilizer dimethicone are auxiliary material, then
It is cast in the die for molding assembled together with isocyanates, is demoulded using maturation process, finally smears anti-attrition film, adopts
It is matched with defined by with the above ingredient, can guarantee that the foamed material obtained after mixing has good compression strength, density is
0.25g/cm3~0.3g/cm3When, compression strength >=6.0MPa.The invention patent be added in polyhydroxyl polyether reinforcing material (in
Empty glass microballoon), the addition of reinforcing material can significantly improve the intensity of hard polyurethane foaming plastics, improve internal stress distribution,
To reduce the size changing rate of product, the rigid polyurethane foam of reinforcing material (hollow glass microbead) is not added at this
In density segment limit, compression strength is only >=4.5MPa.Have many advantages, such as that light weight, intensity are high.Using the above ingredient and institute
The proportion of restriction, the foaming product of acquisition compression strength under equal densities is higher, has many advantages, such as that light weight, intensity are high.
The invention patent is that foaming is poured using equipment, and equipment has automatic stirring function, raw material can be made abundant
It is uniformly mixed, product properties stability is good, and process of preparing is simple, easy to operate, high yield rate, high production efficiency.
Embodiment 1
S1: prepare raw material, weigh 100 parts of adipic acid system polyesterols, weigh 3 parts of hollow glass of reinforcing material according to the proportion
Glass microballon, 4 parts of foaming agent dichloro one fluoroethanes, 0.3 part of catalyst Sanya ethylene diamine, 2 parts of stabilizer dimethicones are added
Premix solution is prepared into adipic acid system polyesterols, is placed 72h, is then stirring evenly and then adding into high pressure with high speed agitator
In bubble machine batch can, 40min or more is stirred, obtains component A；
Solid-state methyl diphenylene diisocyanate is put into baking oven and is heated to 60 DEG C, solid isocyanate is heated and is melted
At liquid, weighs 100 parts of isocyanates and be added in charging bucket of high-pressure foaming machine, obtain B component.
S2: mold assembly includes the following steps:
S21: gusset 3 is mounted on spring seat pin 2, is connected and is fastened with standard component screw, guarantees matching requirements；
S22: will be in the assembly parts of spring seat pin 2 and gusset 3 insertion mold molding locating shaft 6；Locating shaft 1 is inserted into abnormal shape
In the location hole of moulded side panel 7 and spring seat pin 2；Tighten the attachment screw on each type face of mold；Locating shaft 1 is extracted, is closed
Cover board 8 and casting lid are simultaneously locked；Again locating shaft is inserted into the location hole of special-shaped profiled sheeting and spring seat pin；It is protected after assembly
It demonstrate,proves moulded side panel 7 and positioning plate 5,4 height of special-shaped profiled sheeting is consistent；
S23: mold after the assembly is completed, carries out mold preheating, guarantees that mold temperature is 26 DEG C.
S3: foaming adaptor body sets foaming machine raw material temperature as 23 DEG C, and foaming machine mixing ratio is adjusted to 1:
1, casting flow is 40kg/min, calculates poured weights according to mold cavity volume and extrudate density, set poured weights as
1200g, then the duration of pouring is 1.8s, carries out moulding by casting.
S4: mold after casting, is pushed away foaming pouring area after growth to be foamed and stands 30min by maturation process.It will
Mold and product place 90min together at a temperature of natural environment and carry out natural environment temperature maturation process, and placing into temperature is
The maturation process of 50min is carried out in 70 DEG C of baking oven.
S5: demoulding processing when mold temperature naturally cools to 40 DEG C or less, is demoulded, should be by conjunction film when demoulding
Opposite sequence carries out.Specifically: disassembly cover board 8 and casting lid；Extract positioning insertion pin；Unscrew attachment screw, by the various face of mold
Disassembly；The material leakage that foams around screw and screw hole is cleaned out；Locating shaft 6 will be formed from foaming with the dedicated demoulding tooling of adapter
It is taken out in part；Foaming material leakage in molding 6 hole of locating shaft is cleaned out.
S6: anti-attrition film is centrally placed on hot pressing die cavity plate by hot-forming anti-attrition film, guarantees anti-attrition film edge
Groove center line almost symmetry on cavity plate, closes punch-pin.Hot pressing die is placed on hot press plate, hot pressing temperature 100
DEG C ± 10 DEG C, pressing time 150min, 40 DEG C are cooled to hereinafter, mould unloading takes out the anti-attrition film of forming to mold.
S7: in adaptor body surface mount anti-attrition film, by guide-soft-band special glue A, B component according to weight ratio 2:1
It carries out waiting for that bonding plane and adaptor body wait for that bonding plane uniformly smears guide-soft-band special glue in anti-attrition film, as Fig. 4 is with glue
Adaptor body front view of the invention, the face A are that adaptor body waits for bonding plane, and anti-attrition film and left and right adaptor body are glued
It sticks together, selecting bonding environment temperature is 10 DEG C, bonding pressure 0.1MPa, is bonded the time 12 hours at room temperature.
According to the adaptor body that this embodiment obtains, tensile strength is more than or equal to 2.7MPa, and compression strength is greater than etc.
In 6.0MPa, impact strength is more than or equal to 1.3MPa.
Embodiment 2
S1: prepare raw material, weigh 100 parts of adipic acid system polyesterols, weigh 2 parts of hollow glass of reinforcing material according to the proportion
Glass microballon, 5 parts of foaming agent dichloro one fluoroethanes, 0.1 part of catalyst Sanya ethylene diamine, 1 part of stabilizer dimethicone are added
Premix solution is prepared into adipic acid system polyesterols, is placed 72h, is then stirring evenly and then adding into high pressure with high speed agitator
In bubble machine batch can, 40min or more is stirred, obtains component A；
Solid-state methyl diphenylene diisocyanate is put into baking oven and is heated to 70 DEG C, solid isocyanate is heated and is melted
At liquid, weighs 95 parts of isocyanates and be added in charging bucket of high-pressure foaming machine, obtain B component.
S2: mold assembly includes the following steps:
S21: gusset 3 is mounted on spring seat pin 2, is connected and is fastened with standard component screw, guarantees matching requirements；
S22: will be in the assembly parts of spring seat pin 2 and gusset 3 insertion mold molding locating shaft 6；Locating shaft 1 is inserted into abnormal shape
In the location hole of moulded side panel 7 and spring seat pin 2；Tighten the attachment screw on each type face of mold；Locating shaft 1 is extracted, is closed
Cover board 8 and casting lid are simultaneously locked；Again locating shaft is inserted into the location hole of special-shaped profiled sheeting and spring seat pin；It is protected after assembly
It demonstrate,proves moulded side panel 7 and positioning plate 5,4 height of special-shaped profiled sheeting is consistent；
S23: mold after the assembly is completed, carries out mold preheating, guarantees that mold temperature is 35 DEG C.
S3: foaming adaptor body sets foaming machine raw material temperature as 28 DEG C, and foaming machine mixing ratio is adjusted to
1.05:1, casting flow are 50kg/min, calculate poured weights according to mold cavity volume and extrudate density, set poured weights
For 1400g, then the duration of pouring is 1.7s, carries out moulding by casting.
S4: mold after casting, is pushed away foaming pouring area after growth to be foamed and stands 30min by maturation process.It will
Mold and product place 120min together at a temperature of natural environment and carry out natural environment temperature maturation process, and placing into temperature is
The maturation process of 60min is carried out in 65 DEG C of baking oven.
S5: demoulding.
It when mold temperature naturally cools to 40 DEG C or less, is demoulded, should be carried out by the opposite sequence for closing film when demoulding.Tool
Body are as follows: disassembly cover board 8 and casting lid；Extract positioning insertion pin；Unscrew attachment screw, the various face of mold is dismantled；By screw and
The material leakage that foams around screw hole is cleaned out；It is taken out from foaming piece with the dedicated demoulding tooling of adapter by locating shaft 6 is formed；It will be at
The material leakage that foams in 6 hole of type locating shaft is cleaned out.
S6: hot-forming anti-attrition film.
Anti-attrition film is centrally placed on hot pressing die cavity plate, guarantees groove center line base of the anti-attrition film on cavity plate
This is symmetrical, closes punch-pin.Hot pressing die is placed on hot press plate, 100 DEG C ± 10 DEG C of hot pressing temperature, the pressing time
210min is cooled to 40 DEG C hereinafter, mould unloading takes out the anti-attrition film of forming to mold.
S7: in adaptor body surface mount anti-attrition film.
It carries out guide-soft-band special glue A, B component to wait for bonding plane and adaptation in anti-attrition film with glue according to weight ratio 2:1
Device ontology waits for that bonding plane uniformly smears guide-soft-band special glue, and if Fig. 4 is adaptor body front view of the invention, the face A is suitable
Orchestration ontology waits for bonding plane, and anti-attrition film and left and right adaptor body are pasted together, and selecting bonding environment temperature is 20 DEG C,
Bonding pressure 0.1MPa is bonded the time 15 hours at room temperature.
According to the adaptor body that this embodiment obtains, tensile strength is more than or equal to 3.0MPa, and compression strength is greater than etc.
In 6.0MPa, impact strength is more than or equal to 1.5MPa.
Embodiment 3
S1: prepare raw material, weigh 100 parts of adipic acid system polyesterols, weigh 4 parts of hollow glass of reinforcing material according to the proportion
Glass microballon, 6 parts of foaming agent dichloro one fluoroethanes, 0.2 part of catalyst Sanya ethylene diamine, 3 parts of stabilizer dimethicones are added
Premix solution is prepared into adipic acid system polyesterols, is placed 72h, is then stirring evenly and then adding into high pressure with high speed agitator
In bubble machine batch can, 40min or more is stirred, obtains component A；
Solid-state methyl diphenylene diisocyanate is put into baking oven and is heated to 70 DEG C, solid isocyanate is heated and is melted
At liquid, weighs 98 parts of isocyanates and be added in charging bucket of high-pressure foaming machine, obtain B component.
S2: mold assembly includes the following steps:
S21: gusset 3 is mounted on spring seat pin 2, is connected and is fastened with standard component screw, guarantees matching requirements；
S22: will be in the assembly parts of spring seat pin 2 and gusset 3 insertion mold molding locating shaft 6；Locating shaft 1 is inserted into abnormal shape
In the location hole of moulded side panel 7 and spring seat pin 2；Tighten the attachment screw on each type face of mold；Locating shaft 1 is extracted, is closed
Cover board 8 and casting lid are simultaneously locked；Again locating shaft is inserted into the location hole of special-shaped profiled sheeting and spring seat pin；It is protected after assembly
It demonstrate,proves moulded side panel 7 and positioning plate 5,4 height of special-shaped profiled sheeting is consistent；
S23: mold after the assembly is completed, carries out mold preheating, guarantees that mold temperature is 50 DEG C.
S3: foaming adaptor body sets foaming machine raw material temperature as 26 DEG C, and foaming machine mixing ratio is adjusted to
1.02:1, casting flow are 60kg/min, calculate poured weights according to mold cavity volume and extrudate density, set poured weights
For 1600g, then the duration of pouring is 1.6s, carries out moulding by casting.
S4: mold after casting, is pushed away foaming pouring area after growth to be foamed and stands 30min by maturation process.It will
Mold and product place 100min together at a temperature of natural environment and carry out natural environment temperature maturation process, and placing into temperature is
The maturation process of 50min is carried out in 60 DEG C of baking oven.
S5: demoulding processing when mold temperature naturally cools to 40 DEG C or less, is demoulded, should be by conjunction film when demoulding
Opposite sequence carries out.Specifically: disassembly cover board 8 and casting lid；Extract positioning insertion pin；Unscrew attachment screw, by the various face of mold
Disassembly；The material leakage that foams around screw and screw hole is cleaned out；Locating shaft 6 will be formed from foaming with the dedicated demoulding tooling of adapter
It is taken out in part；Foaming material leakage in molding 6 hole of locating shaft is cleaned out.
S6: anti-attrition film is centrally placed on hot pressing die cavity plate by hot-forming anti-attrition film, guarantees anti-attrition film edge
Groove center line almost symmetry on cavity plate, closes punch-pin.Hot pressing die is placed on hot press plate, hot pressing temperature 100
DEG C ± 10 DEG C, pressing time 180min, 40 DEG C are cooled to hereinafter, mould unloading takes out the anti-attrition film of forming to mold.
S7: in adaptor body surface mount anti-attrition film, by guide-soft-band special glue A, B component according to weight ratio 2:1
It carries out waiting for that bonding plane and adaptor body wait for that bonding plane uniformly smears guide-soft-band special glue in anti-attrition film, as Fig. 4 is with glue
Adaptor body front view of the invention, the face A are that adaptor body waits for bonding plane, and anti-attrition film and left and right adaptor body are glued
It sticks together, bonding environment temperature is selected to be advisable for 30 DEG C, bonding pressure 0.1MPa is bonded the time 20 hours at room temperature.
According to the adaptor body that this embodiment obtains, tensile strength is more than or equal to 3.7MPa, and compression strength is greater than etc.
In 6.5MPa, impact strength is more than or equal to 1.6MPa.
As it will be easily appreciated by one skilled in the art that the foregoing is merely illustrative of the preferred embodiments of the present invention, it is not used to
The limitation present invention, any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should all include
Within protection scope of the present invention.
Claims (10)
1. a kind of adapter moulding process, which comprises the steps of:
S1: it weighs 2 parts~4 parts of reinforcing material hollow glass microbead and is activated, and weigh 0.1 part~0.3 part of catalyst
Sanya ethylene diamine, 4 parts~6 parts of foaming agent F-12,1 part~3 parts of stabilizer dimethicone, will be described as adjuvant
Adjuvant is added to preparation premix solution in 100 parts of adipic acid system polyesterols, then after mixing evenly with high speed agitator
It is added in charging bucket of high-pressure foaming machine, obtains component A；
S2: solid-state methyl diphenylene diisocyanate being put into baking oven and is heated, and heating is fused into liquid, weighs 95 parts~100
The isocyanates of part is added in charging bucket of high-pressure foaming machine, obtains B component；
S3: carrying out mold assembly, and mold after the assembly is completed, preheats mold, guarantees that mold temperature is 26 DEG C~50 DEG C；
S4: according to the mixing ratio of setting, respectively from S1, S2 in two charging bucket of high-pressure foaming machine by the component A and institute
B component is stated, is poured into mold；
S5: after moulding by casting, maturation process is carried out, maturation process includes stabilization sub stage and maturation stage；
S6: demoulding obtains adaptor body；
S7: anti-attrition film is centrally placed on hot pressing die cavity plate, closes punch-pin, by hot-die by hot-forming anti-attrition film
Tool is placed on hot press plate, to which after the mold is cooled, mould unloading takes out molding anti-attrition film；
S8: guide-soft-band special glue is smeared on the adaptor body surface, and pastes anti-attrition film.
2. a kind of adapter moulding process according to claim 1, which is characterized in that in step S2, mold assembly is specific
Include the following steps:
S21: gusset is mounted on spring seat pin (2), is connected and is fastened with standard component screw, guarantees matching requirements；
S22: will be in the assembly parts of the spring seat pin (2) and gusset (3) insertion mold molding locating shaft (6)；
S23: locating shaft (1) is inserted into the location hole of special-shaped moulded side panel (7) and spring seat pin (2)；
S24: the attachment screw on each type face of mold is tightened；
S25: extracting locating shaft (1), closes cover board (8) and casting lid and locks；Again locating shaft is inserted into special-shaped profiled sheeting
In the location hole of spring seat pin, mold assembly is completed.
3. a kind of adapter moulding process according to claim 1, which is characterized in that in step S4, component A in foaming machine
It is adjusted to 1~1.05:1 with B component mixing ratio, casting flow is 40kg/min~60kg/min, and temperature is 20 DEG C~28 DEG C.
4. a kind of adapter moulding process according to claim 1, which is characterized in that in step S5, the stabilization sub stage
Technique be, it is to be foamed finish 4min~6min after, mold is pushed away into foaming and pouring area and stands 25min~30min；It is described ripe
Change stage process be first in a natural environment solidify 60min~120min, then at 60 DEG C~70 DEG C solidify 50min~
60min。
5. a kind of adapter moulding process according to claim 1, which is characterized in that in step S6, the demoulding is specific
Include the following steps:
Cover board (8) and casting lid are dismantled, positioning insertion pin is extracted, unscrews attachment screw, the various face of mold is dismantled；By screw and
The material leakage that foams around screw hole is cleaned out；
Locating shaft (6) will be formed with the dedicated demoulding tooling of adapter to take out from foaming piece；
Foaming material leakage in locating shaft (6) hole will be formed to clean out.
6. a kind of adapter moulding process according to claim 1, which is characterized in that in step S7, hot-forming anti-attrition
The temperature of film is 90 DEG C~110 DEG C, pressing time 150min~210min.
7. a kind of adapter moulding process according to claim 1, which is characterized in that in step S8, paste anti-attrition film
Pressure be 0.1MPa, the time be not less than 12 hours.
8. a kind of adapter moulding process according to claim 1, which is characterized in that in step S1, the hollow glass
The activation method of microballon are as follows: impregnate hollow glass microbead for 24 hours with the fertile blue coupling agent that concentration is 85%, then dry in the air at room temperature
It is dry.
9. a kind of adapter moulding process according to claim 1 or 8, which is characterized in that in step S2, the component A
40min or more need to be stirred.
10. a kind of adapter moulding process according to claim 1, which is characterized in that in step S2, solid isocyanate
The temperature of heating fusing is 60 DEG C~70 DEG C.
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| CN201910143393.4A CN109895412B (en) | 2019-02-26 | 2019-02-26 | Adapter forming process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113650225A (en) * | 2021-10-20 | 2021-11-16 | 北京玻钢院复合材料有限公司 | Polyurethane foam-PMI foam composite missile adapter and preparation method thereof |
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| CN105643947A (en) * | 2015-12-09 | 2016-06-08 | 上海复合材料科技有限公司 | Missile adapter co-curing molding technique |
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| CN109895412B (en) | 2021-04-02 |
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