CN102642263A - Vacuum casting process method of photoelastic model - Google Patents
Vacuum casting process method of photoelastic model Download PDFInfo
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- CN102642263A CN102642263A CN2012101460446A CN201210146044A CN102642263A CN 102642263 A CN102642263 A CN 102642263A CN 2012101460446 A CN2012101460446 A CN 2012101460446A CN 201210146044 A CN201210146044 A CN 201210146044A CN 102642263 A CN102642263 A CN 102642263A
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Abstract
The invention relates to a vacuum casting process method of a photoelastic model. A vacuum casting forming machine and a silicon rubber female mold arranged in the vacuum casting forming machine are used for casting forming, the automation degree is high, the errors are few, and in addition, the harm to human bodies by harmful gas released in the casting process because of artificial participation is avoided. The process comprises the following steps that: step 1, epoxy resin (128) and succnic acid are respectively weighed according to the weight proportion being 100:(30-35) in accordance with the photoelastic model to be cast, in addition, the epoxy resin (128) and the succnic acid are uniformly mixed under the vacuum condition of a vacuum stirring temperature control room, the purity of raw materials is improved, and the nonuniformity of materials is avoided; step 2, after a forming chamber of the model is subjected to vacuum pumping, the poxy resin (128) and the succnic acid uniformly mixed in the step 1 are filled into the silicon rubber female mold, and the casting forming is carried out; and step 3, the photoelastic model after the cast forming is solidified.
Description
Technical field
The present invention relates to plastic pattern moulding by casting field, especially, relate to a kind of vacuum pouring process of photoelastic model.
Background technology
Traditional photoelastic model pouring technology requirements of process is repeatedly artificial to be participated in, and the pernicious gas of in the technical process of heating and stirring, discharging can produce injury to human body.In addition; Traditional photoelastic model pouring technology is more suitable for pouring into a mould the common plastics model; When using traditional photoelastic model pouring technology cast to be used for photoelastic model that photoelastic test uses; Have " cloud and mist " (being meant irregular " cloud form " bright line that material appears when in the photo-elastic instrument details in a play not acted out on stage, but told through dialogues, seeing wiping) phenomenon in the material of model, serious " cloud and mist " will influence the optical property of photoelastic model.And, use the photoelastic model surface of traditional photoelastic model pouring technology cast to exist initial stress, inside that bubble is arranged sometimes, this makes that the mechanical property of photoelastic model is bad.In case the optical property and the mechanical property of photoelastic model are bad, just caused the precision of photoelastic test not high, influenced the development of photoelastic test technology.
Summary of the invention
The object of the invention is to provide the vacuum pouring process of the photoelastic model that a kind of automaticity is high, casting process is harmless to human body, casting quality is good; To solve traditional photoelastic model pouring technology method human body is produced injury, and influence the optical property of photoelastic model and the technical problem of mechanical property.
For realizing above-mentioned purpose; One aspect of the present invention; A kind of vacuum pouring process of photoelastic model is provided; The silicon rubber former that utilizes the vacuum pouring make-up machine and be installed in the vacuum pouring make-up machine carries out moulding by casting, and the vacuum pouring make-up machine comprises vacuum stirring temperature-controlling chamber, model forming chamber and the control room that is used to control, and it is indoor that the silicon rubber former is installed in the indoor curing mold of model forming; The vacuum pouring technology of photoelastic model comprises following step: step 1; The weight of the photoelastic model of pouring into a mould as required weighs up epoxy resin (128) and br dilute anhydride respectively according to 100 to 30～35 part by weight, and makes epoxy resin (128) and br dilute anhydride under the condition of the vacuum of vacuum stirring temperature-controlling chamber, mix; Step 2 vacuumizes the model forming chamber, and after keeping vacuum environment, again epoxy resin (128) and br dilute anhydride after mixing in the step 1 is injected into the silicon rubber former, carries out moulding by casting; Step 3, in the step 2 the photoelastic model behind the moulding by casting be cured.
Further; Step 1 comprises following a few step: the first step: weigh up epoxy resin (128) and br dilute anhydride; And pour epoxy resin (128) the first controlled hopper of vacuum stirring temperature-controlling chamber into, br dilute anhydride is poured into the second controlled hopper of vacuum stirring temperature-controlling chamber; In second step, temperature-controlling chamber vacuumizes to vacuum stirring, and simultaneously to the first controlled hopper and the second controlled hopper heating, wherein, the first controlled hopper is heated to 120 ℃, and continues heating 2～3 hours; The second controlled hopper is heated to 70 ℃, and continues heating after 0.5～1 hour, make the second controlled hopper be cooled to 60 ℃ again; The 3rd step; After accomplishing for second step; Maleic anhydride in epoxy resin (128) in the first controlled hopper and the second controlled hopper all poured in the controlled mixed-hopper in the vacuum stirring temperature-controlling chamber mix; In whole this process of mixing, keep vacuum in the controlled mixed-hopper, and keep 60 ℃ of constant temperature always.
Further, in the 3rd step, stirring motor vacuum stirring temperature-controlling chamber in starts, with to stirring in the controlled mixed-hopper, and lasting 1～1.5 hour of 60 ℃ of constant temperature in the controlled mixed-hopper.
Further, in the whole process of step 2, the indoor temperature of curing mold keeps 60 ℃ always.
Further, before carrying out step 2,, reach till 60 ℃ up to the temperature of silicon rubber former to the preheating of silicon rubber former.
Further; In step 2; Before the epoxy resin (128) that mixes and br dilute anhydride are injected into the silicon rubber former; Make air inlet in the vacuum stirring temperature-controlling chamber earlier, utilize the pressure differential between vacuum stirring temperature-controlling chamber and the model forming chamber to make mixed epoxy resin (128) and maleic anhydride inject the silicon rubber former.
Further, be 20KPa with the indoor pressure differential of model forming in the vacuum stirring temperature-controlling chamber, and the time that pressure differential continues it is 1～5 minute.
Further; In step 2; After the epoxy resin (128) that mixes and br dilute anhydride all are injected into the silicon rubber former; Separate the air flue between vacuum stirring temperature-controlling chamber and the model forming chamber earlier, stop to vacuumize after the more indoor curing mold chamber of model forming being continued to vacuumize 0.5～1.5 hour; Afterwards, compartment of terrain air inlet several times in the vacuum of curing mold chamber again, the negative pressure in the vacuum of curing mold chamber is zero.
Further, 3 air inlets in the vacuum of curing mold chamber of branch at interval.
Further, step 3 comprised for two steps: the first step, after the moulding by casting of completing steps two, continue to make the temperature of curing mold chamber to keep 60 ℃ of constant temperature, until photoelastic model become as a form of gel till; Second step, accomplish the first step after, remove the silicon rubber former after, take out photoelastic model, amputate the overlap and the dead head of photoelastic model again, be put into again in the drying box, photoelastic model is further solidified.
Further, in second step, first air drying 0 ~ 1 hour in drying box, heat drying case to temperature is 60 ℃ then, and maintenance 24 hours under 60 ℃ constant temperature; Be 120 ℃ with 1 ~ 3 ℃ speed heat drying case to the temperature of per hour raising again, and under 120 ℃ constant temperature, kept 8 ~ 24 hours; Be 145 ℃ with 1 ~ 3 ℃ speed heat drying case to the temperature of per hour raising again afterwards, and under 145 ℃ constant temperature, kept 8 ~ 24 hours; After at last making that with the speed that per hour reduces by 1 ℃ temperature in the drying box is reduced to 80 ℃, make the temperature natural cooling in the drying box again after, take out photoelastic model.
The present invention has following beneficial effect: the vacuum pouring process of photoelastic model of the present invention utilize weight ratio for the epoxy resin (128) of 100:30～35 and br dilute anhydride as raw material; Improve purity of raw materials, avoided the inhomogeneous of material; And the present invention keeps 60 ℃ constant temperature and mixed epoxy resin (128) and br dilute anhydride is stirred when cast, can effectively eliminate " cloud and mist " and reduce the initial stress of pouring into a mould, and has improved inner mechanics of photoelastic model and optical property.In addition; The vacuum pouring process of photoelastic model of the present invention utilizes the vacuum pouring make-up machine to accomplish automatically; Automaticity is high; Make that the physical dimension of photoelastic model of moulding by casting is accurate, error is little, and avoided artificial participation and the pernicious gas that receives to discharge in the casting process to the infringement of human body.
Except top described purpose, feature and advantage, the present invention also has other purpose, feature and advantage.To do further detailed explanation to the present invention with reference to figure below.
Description of drawings
The accompanying drawing that constitutes the application's a part is used to provide further understanding of the present invention, and illustrative examples of the present invention and explanation thereof are used to explain the present invention, do not constitute improper qualification of the present invention.In the accompanying drawings:
Fig. 1 is the schematic flow sheet of vacuum pouring process of the photoelastic model of the preferred embodiment of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing embodiments of the invention are elaborated, but the multitude of different ways that the present invention can be defined by the claims and cover is implemented.
The vacuum pouring process of the photoelastic model of the preferred embodiment of the present invention is carried out on the vacuum pouring make-up machine.This vacuum pouring make-up machine is that the notification number of announcing on June 9th, 2010 is the vacuum pouring make-up machine that Chinese patent disclosed of CN201501072U.This vacuum pouring make-up machine comprises vacuum stirring temperature-controlling chamber, model forming chamber and is used to control the control room of this vacuum pouring make-up machine.This model forming is indoor, and also to be provided with the curing mold with hoistable platform indoor.
Before carrying out the vacuum pouring process of photoelastic model of the present invention, be installed in the required silicon rubber former of moulding by casting on the vacuum pouring make-up machine earlier.Detailed process is: the indoor hoistable platform of curing mold that is placed on the silicon rubber former that is used for the photoelastic model moulding this vacuum pouring make-up machine; The height of regulating hoistable platform again is till conveniently can watching the charging aperture and discharging opening of silicon rubber former through the observation window of model forming chamber; At this moment, insert the mozzle in the vacuum stirring temperature-controlling chamber of vacuum pouring make-up machine the charging aperture of silicon rubber former again.Preferably, the charging aperture of cast is in the bottom of silicon rubber former, and discharging opening is arranged on the position that easy appearance lacks material, in order to avoid occur lacking the material phenomenon during cast photoelastic model.
Please, utilize the vacuum pouring step of this vacuum pouring make-up machine cast photoelastic model following with reference to Fig. 1:
Step 1 S1: the weight ratio according to predetermined is prepared burden to the cast raw material of photoelastic model; The weight that promptly is the photoelastic model poured into a mould as required weighs up epoxy resin (128) and br dilute anhydride respectively according to the part by weight of 100:30～35, and makes epoxy resin (128) and br dilute anhydride mix.
In general; Multiply by the proportion (approximating 1.28 gram/cubic centimetres) of mixed liquor by the volume of the photoelastic model of desire casting; Calculate the required weight of model, the size according to above-mentioned photoelastic model of calculating suitably increases the weight that surplus can draw the photoelastic model of needs cast again.Preferably, above-mentioned surplus is good to be full of 2/3rds of whole feed pipes of vacuum pouring make-up machine and discharge pipe.
This step 1 S1 specifically comprises following a few step: at first, and the first step: pour epoxy resin (128) the first controlled hopper of vacuum stirring temperature-controlling chamber into, pour br dilute anhydride in the second controlled hopper of vacuum stirring temperature-controlling chamber.
Then, second step: control indoor control device, so that vacuum stirring temperature-controlling chamber is vacuumized, and simultaneously to the first controlled hopper and the second controlled hopper heating.Concrete, the first controlled hopper is heated to 120 ℃, and continues heating 2～3 hours; The second controlled hopper is heated to 70 ℃, and continues heating after 0.5～1 hour, make the second controlled hopper be cooled to 60 ℃ again.
At last, the 3rd step: control indoor control device, interior epoxy resin (128) of the controlled hopper of winning and the maleic anhydride in the second controlled hopper are all poured in the controlled mixed-hopper in the vacuum stirring temperature-controlling chamber mixed; In this process, keep vacuum in the controlled mixed-hopper, and the temperature in the controlled mixed-hopper keeps 60 ℃ always.
Process is particularly: the epoxy resin (128) in the first controlled hopper is poured into behind screen pack in the controlled mixed-hopper in the vacuum stirring temperature-controlling chamber; After batch turning finishes; The first controlled hopper automatic homing carries out temperature controlled temperature controller to the first controlled hopper and quits work; When the second controlled hopper temperature is cooled to 60 ℃; Maleic anhydride in the second controlled hopper is also poured in the above-mentioned controlled mixed-hopper through behind the screen pack; After batch turning finished, the second controlled hopper automatic homing carried out temperature controlled temperature controller to the second controlled hopper and quits work.At this moment; Start stirring motor, with to stirring in the controlled mixed-hopper, so that epoxy resin (128) and maleic anhydride in the controlled mixed-hopper mix; After epoxy resin (128) and maleic anhydride mix, stop stirring motor.In this process, through the temperature control controller controlled mixed-hopper is carried out temperature control, keep 60 ℃ to guarantee the temperature in the controlled mixed-hopper, and continue 1～1.5 hour.
Step 2 S2: photoelastic model is carried out moulding by casting; Promptly be: earlier the model forming chamber is vacuumized; And to curing mold chamber heating, when the indoor temperature of curing mold kept 60 ℃, the charging aperture that the mozzle that again epoxy resin that mixes (128) and br dilute anhydride is passed through flows to the silicon rubber former carried out photoelastic model and carries out moulding by casting; And in the process of whole moulding by casting, the indoor temperature of curing mold keeps 60 ℃ always.
Concrete process is: control indoor control device; Earlier the model forming chamber is vacuumized; And the curing mold chamber heating indoor to model forming, simultaneously temperature controlled temperature controller is carried out in the curing mold chamber and start working, when the indoor temperature of curing mold keeps 60 ℃; Make air inlet in the vacuum stirring temperature-controlling chamber, thereby make in the vacuum stirring temperature-controlling chamber and pressure differential of the indoor formation of model forming.At this moment; Open the seal cover between vacuum stirring temperature-controlling chamber and the model forming chamber again; The pressure differential of vacuum stirring temperature-controlling chamber and model forming chamber makes that mixed epoxy resin (128) and maleic anhydride carry out moulding by casting through the indoor silicon rubber former of curing mold in the slow injection model of the guiding device forming room in the controlled mixed-hopper.
Preferably, be 20KPa with the indoor pressure differential of model forming in the vacuum stirring temperature-controlling chamber, the time that this pressure differential continues is 1～5 minute, and should not surpass 5 minutes, forms bubble in order to avoid air gets into the silicon rubber former.
When mixed epoxy resin (128) and maleic anhydride topple over finish after, controlled mixed-hopper automatic homing, the temperature control controller of controlled mixed-hopper quits work.Seal cover between vacuum stirring temperature-controlling chamber and the model forming chamber is closed, separated the air flue between vacuum stirring temperature-controlling chamber and the curing mold chamber.At this moment, again the curing mold chamber is kept vacuumizing, and continue to stop to vacuumize after 0.5～1.5 hour; Afterwards, compartment of terrain air inlet several times in the vacuum of curing mold chamber again, the negative pressure in the vacuum of curing mold chamber is zero.Preferably, divide 3 air inlets in the vacuum of curing mold chamber at interval.
It should be noted that; Mixed epoxy resin (128) and maleic anhydride inject before the silicon rubber former in controlled mixed-hopper; Need the silicon rubber former is wanted abundant preheating; Temperature up to the silicon rubber former is consistent with the temperature of curing mold chamber, when promptly reaching 60 ℃, just makes controlled mixed-hopper begin in the silicon rubber former, to inject mixed epoxy resin (128) and maleic anhydride.
Step 3 S3: after the photoelastic model behind the moulding by casting was cured, photoelastic model was taken out in form removal.
Step 3 S3 is divided into following two steps: the first step: carry out solidifying the first time.Particularly, after the moulding by casting of accomplishing above-mentioned steps two S2, continue to make the temperature of curing mold chamber to keep 60 ℃ of constant temperature, and keep about 10 days, until photoelastic model become as a form of gel till.
Then carried out for second step, promptly be: the photoelastic model behind the moulding by casting is carried out solidifying the second time.Particularly, after having accomplished curing for the first time, remove the silicon rubber former, from the silicon rubber former, take out photoelastic model, amputate the overlap and the dead head of photoelastic model, be put into again and carry out in the drying box solidifying the second time.
Solidify for the second time following a few step is specifically arranged: air drying is about 0 ~ 1 hour in drying box earlier, and heat drying case temperature extremely is 60 ℃ then, and under 60 ℃ constant temperature, keeps 24 hours; Be 120 ℃ with 1 ~ 3 ℃ speed heat drying case to the temperature of per hour raising again, and under 120 ℃ constant temperature, kept 8 ~ 24 hours; Be 145 ℃ with 1 ~ 3 ℃ speed heat drying case to the temperature of per hour raising again afterwards, and under 145 ℃ constant temperature, kept 8 ~ 24 hours; After at last making that with the speed that per hour reduces by 1 ℃ temperature in the drying box is reduced to 80 ℃, make the temperature natural cooling in the drying box again after, take out photoelastic model.
The vacuum pouring process of photoelastic model of the present invention utilize weight ratio for the epoxy resin (128) of 100:30～35 and br dilute anhydride as raw material, improved purity of raw materials, avoided the inhomogeneous of material; And the present invention keeps 60 ℃ constant temperature and mixed epoxy resin (128) and br dilute anhydride is stirred when cast, can effectively eliminate " cloud and mist " and reduce the initial stress of pouring into a mould, and has improved inner mechanics of photoelastic model and optical property.In addition; The vacuum pouring process of photoelastic model of the present invention utilizes the vacuum pouring make-up machine to accomplish automatically; Automaticity is high; Make that the physical dimension of photoelastic model of moulding by casting is accurate, error is little, and avoided artificial participation and the pernicious gas that receives to discharge in the casting process to the infringement of human body.
The above is merely the preferred embodiments of the present invention, is not limited to the present invention, and for a person skilled in the art, the present invention can have various changes and variation.All within spirit of the present invention and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (11)
1. the vacuum pouring process of a photoelastic model; The silicon rubber former that utilizes the vacuum pouring make-up machine and be installed in the said vacuum pouring make-up machine carries out moulding by casting; Said vacuum pouring make-up machine comprises vacuum stirring temperature-controlling chamber, model forming chamber and the control room that is used to control, and it is indoor that said silicon rubber former is installed in the indoor curing mold of said model forming;
It is characterized in that the vacuum pouring technology of said photoelastic model comprises following step:
Step 1; The weight of the said photoelastic model of cast weighs up epoxy resin (128) and br dilute anhydride respectively according to 100 to 30～35 part by weight as required, and makes said epoxy resin (128) and said br dilute anhydride under the condition of the vacuum of said vacuum stirring temperature-controlling chamber, mix;
Step 2 vacuumizes said model forming chamber, and after keeping vacuum environment, more said epoxy resin (128) after mixing in the said step 1 and said br dilute anhydride is injected into said silicon rubber former, carries out moulding by casting;
Step 3, in the step 2 the said photoelastic model behind the moulding by casting be cured.
2. the vacuum pouring process of photoelastic model according to claim 1, it is characterized in that: said step 1 comprises following a few step:
The first step: weigh up said epoxy resin (128) and said br dilute anhydride; And pour said epoxy resin (128) the first controlled hopper of said vacuum stirring temperature-controlling chamber into, said br dilute anhydride is poured into the second controlled hopper of said vacuum stirring temperature-controlling chamber;
Second step vacuumized said vacuum stirring temperature-controlling chamber, and simultaneously to the said first controlled hopper and the said second controlled hopper heating, wherein, the said first controlled hopper was heated to 120 ℃, and continues to heat 2～3 hours; The said second controlled hopper is heated to 70 ℃, and continues heating after 0.5～1 hour, make the second controlled hopper be cooled to 60 ℃ again;
The 3rd step; After accomplishing said second step; Maleic anhydride in epoxy resin (128) in the said first controlled hopper and the said second controlled hopper all poured in the controlled mixed-hopper in the said vacuum stirring temperature-controlling chamber mix; In whole this process of mixing, keep vacuum in the said controlled mixed-hopper, and keep 60 ℃ of constant temperature always.
3. the vacuum pouring process of photoelastic model according to claim 2; It is characterized in that: in said the 3rd step; Stirring motor in the said vacuum stirring temperature-controlling chamber starts; With to stirring in the said controlled mixed-hopper, and the constant temperature in the said controlled mixed-hopper continues 1～1.5 hour for 60 ℃.
4. the vacuum pouring process of photoelastic model according to claim 1, it is characterized in that: in the whole process of said step 2, the indoor temperature of said curing mold keeps 60 ℃ always.
5. the vacuum pouring process of photoelastic model according to claim 4 is characterized in that: before carrying out said step 2, to the preheating of said silicon rubber former, reach till 60 ℃ up to the temperature of said silicon rubber former.
6. the vacuum pouring process of photoelastic model according to claim 4; It is characterized in that: in said step 2; Before the said epoxy resin (128) that will mix and said br dilute anhydride are injected into said silicon rubber former; Make air inlet in the said vacuum stirring temperature-controlling chamber earlier, utilize the pressure differential between said vacuum stirring temperature-controlling chamber and the said model forming chamber to make mixed said epoxy resin (128) and said maleic anhydride inject said silicon rubber former.
7. the vacuum pouring process of photoelastic model according to claim 6 is characterized in that: be 20KPa with the indoor pressure differential of said model forming in the said vacuum stirring temperature-controlling chamber, and the time that said pressure differential continues is 1～5 minute.
8. the vacuum pouring process of photoelastic model according to claim 6; It is characterized in that: in said step 2; After the said epoxy resin (128) that will mix and said br dilute anhydride all are injected into said silicon rubber former; Separate the air flue between said vacuum stirring temperature-controlling chamber and the said model forming chamber earlier, stop to vacuumize after the more indoor curing mold chamber of said model forming being continued to vacuumize 0.5～1.5 hour; Afterwards, compartment of terrain air inlet several times in the vacuum of said curing mold chamber again, the negative pressure in the vacuum of curing mold chamber is zero.
9. the vacuum pouring process of photoelastic model according to claim 8 is characterized in that: 3 air inlets in the vacuum of said curing mold chamber of branch at interval.
10. the vacuum pouring process of photoelastic model according to claim 1, it is characterized in that: said step 3 comprised for two steps:
The first step after the moulding by casting of accomplishing said step 2, continues to make the temperature of said curing mold chamber to keep 60 ℃ of constant temperature, until said photoelastic model become as a form of gel till;
Second the step, accomplish the said first step after, remove said silicon rubber former after, take out said photoelastic model, amputate the overlap and the dead head of said photoelastic model again, be put into again in the drying box, said photoelastic model is further solidified.
11. the vacuum pouring process of photoelastic model according to claim 10; It is characterized in that: in said second step; First air drying 0 ~ 1 hour in said drying box, heating said drying box to temperature then is 60 ℃, and maintenance 24 hours under 60 ℃ constant temperature; Heating said drying box to temperature with 1 ~ 3 ℃ the speed of per hour raising again is 120 ℃, and under 120 ℃ constant temperature, keeps 8 ~ 24 hours; Heating said drying box to temperature with 1 ~ 3 ℃ the speed of per hour raising again afterwards is 145 ℃, and under 145 ℃ constant temperature, keeps 8 ~ 24 hours; After at last making that with the speed that per hour reduces by 1 ℃ temperature in the said drying box is reduced to 80 ℃, make the temperature natural cooling in the said drying box again after, take out said photoelastic model.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104476708A (en) * | 2014-11-14 | 2015-04-01 | 中国航空动力机械研究所 | Photoelastic model blank die |
| CN105181458A (en) * | 2015-09-23 | 2015-12-23 | 中国航空动力机械研究所 | Three-dimensional photo-elasticity test method |
| CN105291326A (en) * | 2015-10-20 | 2016-02-03 | 中国矿业大学(北京) | Epoxy resin photoelastic model and manufacturing method thereof |
| CN106273094A (en) * | 2016-10-17 | 2017-01-04 | 中国航空动力机械研究所 | Epoxy resin pattern manufacture method for photoelastic test |
| CN106393527A (en) * | 2016-11-15 | 2017-02-15 | 中国航空动力机械研究所 | Photoelastic model and manufacturing method thereof |
| CN109883835A (en) * | 2019-03-20 | 2019-06-14 | 中国航发湖南动力机械研究所 | Photoelastic model mounting device and rotating centrifugal load charger |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104476708A (en) * | 2014-11-14 | 2015-04-01 | 中国航空动力机械研究所 | Photoelastic model blank die |
| CN105181458A (en) * | 2015-09-23 | 2015-12-23 | 中国航空动力机械研究所 | Three-dimensional photo-elasticity test method |
| CN105291326A (en) * | 2015-10-20 | 2016-02-03 | 中国矿业大学(北京) | Epoxy resin photoelastic model and manufacturing method thereof |
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| CN106273094A (en) * | 2016-10-17 | 2017-01-04 | 中国航空动力机械研究所 | Epoxy resin pattern manufacture method for photoelastic test |
| CN106393527A (en) * | 2016-11-15 | 2017-02-15 | 中国航空动力机械研究所 | Photoelastic model and manufacturing method thereof |
| CN109883835A (en) * | 2019-03-20 | 2019-06-14 | 中国航发湖南动力机械研究所 | Photoelastic model mounting device and rotating centrifugal load charger |
| CN109883835B (en) * | 2019-03-20 | 2021-07-23 | 中国航发湖南动力机械研究所 | Photoelastic model installation device and rotary centrifugal load loading device |
| CN117400538A (en) * | 2023-12-11 | 2024-01-16 | 华侨大学 | Three-dimensional photoelastic model rapid forming method combined with 3D printing |
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