CN103207262A - Method of detecting process performance of hydroxyl-terminated polybutadiene boron-containing fuel-rich propellant - Google Patents
Method of detecting process performance of hydroxyl-terminated polybutadiene boron-containing fuel-rich propellant Download PDFInfo
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Abstract
The invention provides a method of detecting process performance of hydroxyl-terminated polybutadiene boron-containing fuel-rich propellant, and the method is used for performance evaluation of solid propellants. The method comprises six steps of: selecting components of the boron-containing fuel-rich propellant and preparing a detection drug slurry; pouring the detection drug slurry; detecting an apparent viscosity of the drug slurry; detecting yield value of the drug slurry; listing test data; and determining an applicable period. The method uses experimental equipment to detect the apparent viscosity and the yield value of the propellant during an expanded filling process of the drug slurry by using a quantitative determination method and thus determines the applicable period; by using the apparent viscosity, the yield value and detection data of the applicable period, quantitatively evaluates pourability of the propellant drug slurry subjected to expanded filling, that is, castability, leveling property and applicable period, and furthermore determines a process performance of the propellant drug slurry subjected to the expanded filling. The method has advantages of simple method, scientific detection, high reliability and strong practicality.
Description
Technical field
The present invention relates to solid propellant performance evaluation technology, specifically a kind of end hydroxy butadiene boracic fuel-rich propellant shop characteristic detection method.
Background technology
The shop characteristic of solid-propellant pulps is the key of solid propellant rocket powder charge success, and in the prior art, the shop characteristic that solid-propellant pulps enlarges powder charge qualitatively judges mostly by rule of thumb, lacks quantitative evaluation method.
Summary of the invention
The objective of the invention is to provide a kind of end hydroxy butadiene boracic fuel-rich propellant shop characteristic detection method, it has introduced three quantitative targets passing judgment on the solid propellant pourability reliably: watering property, levelability and working life, realized detecting with test method these three quantitative targets of solid propellant pourability effectively.
Design a kind of end hydroxy butadiene boracic fuel-rich propellant shop characteristic detection method, it comprises following six steps:
Step 1, test is prepared: select the component of boracic fuel-rich propellant, preparation detects the medicine slurry;
Step 2, the medicine slurry is poured into a mould: set the cast parameter, water the injection slurry, obtain the mobile levelling data of medicine slurry and condition diagram;
Step 3, apparent viscosity detects: select test condition, test the different apparent viscosity constantly of described medicine slurry;
Step 4, yield value detects: select test condition, test the different yield values constantly of described medicine slurry;
Step 5, test figure tabulation: obtain the shop characteristic related data, comprise " apparent viscosity " and " yield value ", flow, levelling area;
Step 6 is judged: according to different yield value medicine slurry levelling areas and levelling condition diagram shown in the test figure tabulation, determine the levelling yield value and judge " working life " working life.
The preparation test samples stage, adopt vertical mixer to prepare the COMPOSITE SOLID PROPELLANT slurry samples, discharging is placed under 50 ℃, with the different time points sampling, is used for pouring experiment.
Set the cast parameter stage, choose the cast card, the shower nozzle specification is φ 4mm * 7 holes, thickness of slab δ=2mm; The operation valve blanking hole is that 14mm * 7mm is rectangular-shaped; When the operation valve standard-sized sheet, the blanking flow is greater than the blanking total flow in all shower nozzle holes of cast card, to guarantee the actual blanking rate of shower nozzle hole under uncontrolled state, each time point duration of pouring is 60 seconds, pouring temperature is 50 ℃, sample is cast in the glass-board surface that posts coordinate paper, calculates blanking flow and levelling area, obtains the levelling condition diagram.
Select the testing conditions stage, select German Haake RV20 viscosity meter for use, adopt the M5/SV2 measuring system, probe temperature is 50 ℃, and the test shear rate is 1s
-1, detect apparent viscosity; Select German Haake RV20 viscosity meter for use, adopt the M5/SV2FL measuring system, probe temperature is 50 ℃, and the test shear rate is 0.1s
-1, detect yield value.
Working life, decision stage according to the shop characteristic related data, by medicine slurry levelling condition diagram, obtained that flat bright, the powder of powder is comparatively flat brightly to have streak, powder can not three kinds of different variations of tangible cast streak be arranged levelling; Comparatively flat bright the streak time point is arranged is medicine slurry working life with powder; This moment institute's medicine of surveying slurry apparent viscosity, yield value data can be used as the criterion of evaluation propellant expansion charge process performance.
The invention has the beneficial effects as follows: detect apparent viscosity owing to adopted the Haake viscosity meter to measure the viscosity system, measure the yield value system and detect yield value, thereby can reflect watering property and the levelability of solid propellant quantitatively.Simultaneously owing to judge working life according to different yield value powder levelling areas and levelling situation, thereby pourability that can the thoroughly evaluating solid propellant.The present invention also has the simple and reliable advantage of data of method.
Description of drawings
Fig. 1 is different yield value powder levelling areas and the levelling condition diagram of a boracic fuel-rich propellant
a
Fig. 2 is different yield value powder levelling areas and the levelling condition diagram of a boracic fuel-rich propellant
b
Fig. 3 is different yield value powder levelling areas and the levelling condition diagram of a boracic fuel-rich propellant
c
Fig. 4 is different yield value powder levelling areas and the levelling condition diagram of No. two boracic fuel-rich propellants
a
Fig. 5 is different yield value powder levelling areas and the levelling condition diagram of No. two boracic fuel-rich propellants
b
Fig. 6 is different yield value powder levelling areas and the levelling condition diagram of No. two boracic fuel-rich propellants
c
Fig. 7 is different yield value powder levelling areas and the levelling condition diagram of No. three boracic fuel-rich propellants
A;
Fig. 8 is different yield value powder levelling areas and the levelling condition diagram of No. three boracic fuel-rich propellants
B;
Fig. 9 is different yield value powder levelling areas and the levelling condition diagram of No. three boracic fuel-rich propellants
C.
Embodiment
Below divide four parts that embodiment of the present invention is further specified.
The first, detect principle.
The pourability of propellant, namely propellant enlarges the shop characteristic of powder charge, custom is called for short shop characteristic, it comprise watering property, levelability and working life three aspects.
Watering property refers to that can the medicine slurry pour into engine smoothly through the casting equipment of engine powder charge, and this is the flow field problem of medicine slurry under certain shear stress and certain shear, characterizes with apparent viscosity.
Can levelability refer to pour into the medicine slurry of engine and self pile up under gravity and the ambient vibration power, slowly flow, be full of in the engine and have living space, guarantee the powder column pore-free, this is the flow field problem of medicine slurry under low shear stress and low shear rate, and it is relevant with yield value.
But be suitable for the time limit that index futures medicine slurry possesses watering property and levelling, watering property of cause and levelability all are that shop characteristic is needed, determine medicine slurry working life so the employing time is selected short principle, but namely get it filled pourable time limit of slurry and the two short-and-medium time limit of levelling time limit are working life.
The second, number boracic fuel-rich propellant shop characteristic detection method.
Step 1, test is prepared: the component of selecting the boracic fuel-rich propellant;
Table 1 is that the prescription of a boracic fuel-rich propellant is formed and the content table of comparisons.
(tabulation explanation: in the table, test duration h is hour; Shear rate is s
-1Viscosity Pas is pascal second; Flow g/s flows through weight for the per second unit interval; Yield value Pa is Pascal; Area cm
2Be square centimeter;
HTPB/IPDI is end hydroxy butadiene (HTPB) and isophorone diisocyanate (IPDI) bonding agent; DOS is the di-n-octyl sebacate plastifier; GFP is 2,2 a pair ofs-efficient burningrate catalyst of (ethyl dicyclopentadienyl iron base)-propane solid propellant; TB is reunion boron; AP is ammonium perchlorate; Al is aluminium powder; Mg is the magnesium powder; Mg/Al is magnesium aluminum-alloy powder.Following table together).
Step 2, sample preparation and cast;
The sample preparation: adopt vertical mixer to prepare the COMPOSITE SOLID PROPELLANT slurry samples, discharging is placed under 50 ℃, with the different time points sampling, is used for pouring experiment;
The cast parameter is set: the cast sample stage, set the cast parameter stage, and choose the cast card, the shower nozzle specification is φ 4mm * 7 holes, thickness of slab δ=2mm; The operation valve blanking hole is that 14mm * 7mm is rectangular-shaped; When the operation valve standard-sized sheet, the blanking flow is greater than the blanking total flow in all shower nozzle holes of cast card, to guarantee the actual blanking rate of shower nozzle hole under uncontrolled state, each time point duration of pouring is 60 seconds, pouring temperature is 50 ℃, sample is cast in the glass-board surface that posts coordinate paper, calculates blanking flow and levelling area, obtains the levelling condition diagram.
Step 3, apparent viscosity is measured;
The sample preparation: adopt vertical mixer to prepare the COMPOSITE SOLID PROPELLANT slurry samples, discharging is placed under 50 ℃, with the different time points sampling, is used for apparent viscosity and measures;
Select the testing conditions stage, select German Haake RV20 viscosity meter for use, adopt the M5/SV2 measuring system, probe temperature is 50 ℃, and the test shear rate is 1s
-1, detect apparent viscosity.
Step 4, yield value is measured;
The sample preparation: adopt vertical mixer to prepare the COMPOSITE SOLID PROPELLANT slurry samples, discharging is placed under 50 ℃, with the different time points sampling, is used for yield value and measures;
Select the testing conditions stage, select German Haake RV20 viscosity meter for use, adopt the M5/SV2FL measuring system, probe temperature is 50 ℃, and the test shear rate is 0.1s
-1, detect yield value.
Step 5, test figure tabulation: obtain the shop characteristic related data, comprise " apparent viscosity " and " yield value ";
Table 2 is the shop characteristic parameter list of a boracic fuel-rich propellant.
| Test duration, h | Viscosity (Pas) | Flow (g/s) | Yield value (Pa) | Area (cm 2） |
| 1 | 347.9 | 3.5 | 59.8 | 5.8 |
| 2 | 436.5 | 3.3 | 66.3 | 5.0 |
| 3 | 527.3 | 3.3 | 98.3 | 4.0 |
| 4 | 600.1 | 3.0 | 116.3 | 3.6 |
| 5 | 729.3 | 2.8 | 145.4 | 3.4 |
| 6 | 845.1 | 2.3 | 170.2 | 2.4 |
| 7 | 900.4 | 2.1 | 189.4 | 2.1 |
| 8 | 1015.6 | 2.0 | 216.3 | 2.0 |
| 9 | 1147.5 | 1.8 | 254.7 | 1.5 |
| 10 | 1224.6 | 1.2 | 289.3 | 0.8 |
Step 6 is judged: according to different yield value medicine slurry levelling areas and levelling condition diagram shown in the test figure tabulation, determine the levelling yield value and judge working life working life.
According to table 2 and Fig. 1, Fig. 2, Fig. 3, obtain medicine slurry apparent viscosity, yield value increases along with the increase of time, blanking flow, levelling area reduce along with the increase of time, and levelability is variation along with the increase of yield value; Among Fig. 1 among a, Fig. 2 among b, Fig. 3 the yield value of c three pictures be respectively 98.3Pa, 254.7Pa, 289.3Pa, yield value is during less than 254.7Pa, but powder levelling, powder can't levelling during greater than 254.7Pa when yield value, obvious cast streak shape is arranged, but judge a boracic fuel-rich propellant medicine slurry yield value accordingly less than the 250Pa levelling, be 9 hours working life.
The three, No. two boracic fuel-rich propellant shop characteristic detection method.
Step 1, test is prepared: the component of selecting the boracic fuel-rich propellant;
Table 3 is that the prescription of No. two boracic fuel-rich propellants is formed and the content table of comparisons.
Step 2, sample preparation and cast;
The sample preparation: adopt vertical mixer to prepare the COMPOSITE SOLID PROPELLANT slurry samples, discharging is placed under 50 ℃, with the different time points sampling, is used for pouring experiment;
The cast parameter is set: the cast sample stage, set the cast parameter stage, and choose the cast card, the shower nozzle specification is φ 4mm * 7 holes, thickness of slab δ=2mm; The operation valve blanking hole is that 14mm * 7mm is rectangular-shaped; When the operation valve standard-sized sheet, the blanking flow is greater than the blanking total flow in all shower nozzle holes of cast card, to guarantee the actual blanking rate of shower nozzle hole under uncontrolled state, each time point duration of pouring is 60 seconds, pouring temperature is 50 ℃, sample is cast in the glass-board surface that posts coordinate paper, calculates blanking flow and levelling area, obtains the levelling condition diagram.
Step 3, apparent viscosity is measured;
The sample preparation: adopt vertical mixer to prepare the COMPOSITE SOLID PROPELLANT slurry samples, discharging is placed under 50 ℃, with the different time points sampling, is used for apparent viscosity and measures;
Select the testing conditions stage, select German Haake RV20 viscosity meter for use, adopt the M5/SV2 measuring system, probe temperature is 50 ℃, and the test shear rate is 1s
-1, detect apparent viscosity.
Step 4, yield value is measured;
The sample preparation: adopt vertical mixer to prepare the COMPOSITE SOLID PROPELLANT slurry samples, discharging is placed under 50 ℃, with the different time points sampling, is used for yield value and measures;
Select the testing conditions stage, select German Haake RV20 viscosity meter for use, adopt the M5/SV2FL measuring system, probe temperature is 50 ℃, and the test shear rate is 0.1s
-1, detect yield value.
Step 5, test figure tabulation: obtain the shop characteristic related data, comprise " apparent viscosity " and " yield value ";
Table 4 is the shop characteristic parameter list of a boracic fuel-rich propellant;
| Test duration, h | Viscosity (Pas) | Flow (g/s) | Yield value (Pa) | Area (cm 2） |
| 1 | 497.4 | 3.3 | 73.1 | 5.0 |
| 2 | 575.4 | 3.3 | 81.8 | 4.6 |
| 3 | 707.1 | 2.8 | 124.2 | 3.3 |
| 4 | 829.8 | 2.5 | 150.7 | 3.0 |
| 5 | 831.5 | 2.2 | 189.6 | 2.1 |
| 6 | 1041.0 | 2.1 | 231.3 | 2.0 |
| 7 | 1169.0 | 1.8 | 262.2 | 1.4 |
| 8 | 1323.0 | 1.1 | 332.4 | 0.7 |
| 9 | 1447.0 | 1.0 | 380.9 | 0.5 |
| 10 | 1468.0 | 0.8 | 411.8 | 0.2 |
Step 6 is judged: according to different yield value medicine slurry levelling areas and levelling condition diagram shown in the test figure tabulation, determine the levelling yield value and judge working life working life.
According to table 4 and Fig. 2, obtain medicine slurry apparent viscosity, yield value increases along with the increase of time, blanking flow, levelling area reduce along with the increase of time, and levelability is variation along with the increase of yield value; The yield value of a, b, c three pictures is respectively 124.2Pa, 262.2Pa, 332.4Pa among Fig. 1, yield value is during less than 262.2Pa, but powder levelling, powder can't levelling during greater than 262.2Pa when yield value, obvious cast streak shape is arranged, but judge No. two boracic fuel-rich propellant medicine slurry yield values accordingly less than the 260Pa levelling, be 7 hours working life.
The four, No. three boracic fuel-rich propellant shop characteristic detection method.
Step 1, test is prepared: the component of selecting the boracic fuel-rich propellant;
Table 5 is that the prescription of No. three boracic fuel-rich propellants is formed and the content table of comparisons.
Step 2, sample preparation and cast;
The sample preparation: adopt vertical mixer to prepare the COMPOSITE SOLID PROPELLANT slurry samples, discharging is placed under 50 ℃, with the different time points sampling, is used for pouring experiment;
The cast parameter is set: the cast sample stage, set the cast parameter stage, and choose the cast card, the shower nozzle specification is φ 4mm * 7 holes, thickness of slab δ=2mm; The operation valve blanking hole is that 14mm * 7mm is rectangular-shaped; When the operation valve standard-sized sheet, the blanking flow is greater than the blanking total flow in all shower nozzle holes of cast card, to guarantee the actual blanking rate of shower nozzle hole under uncontrolled state, each time point duration of pouring is 60 seconds, pouring temperature is 50 ℃, sample is cast in the glass-board surface that posts coordinate paper, calculates blanking flow and levelling area, obtains the levelling condition diagram.
Step 3, apparent viscosity is measured;
The sample preparation: adopt vertical mixer to prepare the COMPOSITE SOLID PROPELLANT slurry samples, discharging is placed under 50 ℃, with the different time points sampling, is used for apparent viscosity and measures;
Select the testing conditions stage, select German Haake RV20 viscosity meter for use, adopt the M5/SV2 measuring system, probe temperature is 50 ℃, and the test shear rate is 1s
-1, detect apparent viscosity.
Step 4, yield value is measured;
The sample preparation: adopt vertical mixer to prepare the COMPOSITE SOLID PROPELLANT slurry samples, discharging is placed under 50 ℃, with the different time points sampling, is used for yield value and measures;
Select the testing conditions stage, select German Haake RV20 viscosity meter for use, adopt the M5/SV2FL measuring system, probe temperature is 50 ℃, and the test shear rate is 0.1s
-1, detect yield value.
Step 5, test figure tabulation: obtain the shop characteristic related data, comprise " apparent viscosity " and " yield value ";
Table 6 is the shop characteristic parameter list of No. three boracic fuel-rich propellants.
| Test duration, h | Viscosity (Pas) | Flow (g/s) | Yield value (Pa) | Area (cm 2） |
| 1 | 456.1 | 3.3 | 77.3 | 5.0 |
| 2 | 510.6 | 3.3 | 102.6 | 4.2 |
| 3 | 621.7 | 3.1 | 121.0 | 3.8 |
| 4 | 756.2 | 2.8 | 146.8 | 3.3 |
| 5 | 915.5 | 2.2 | 173.0 | 2.3 |
| 6 | 1067.1 | 1.9 | 257.0 | 1.9 |
| 7 | 1160.1 | 1.8 | 316.8 | 1.2 |
| 8 | 1314.2 | 1.1 | 364.5 | 0.7 |
| 9 | 1405.6 | 1.0 | 395.1 | 0.5 |
| 10 | 1457.3 | 0.9 | 421.4 | 0.2 |
Step 6 is judged: according to different yield value medicine slurry levelling areas and levelling condition diagram shown in the test figure tabulation, determine the levelling yield value and judge working life working life.
According to table 6 and Fig. 3, obtain medicine slurry apparent viscosity, yield value increases along with the increase of time, blanking flow, levelling area reduce along with the increase of time, and levelability is variation along with the increase of yield value; The yield value of a, b, c three pictures is respectively 121.0Pa, 257.0Pa, 316.8Pa among Fig. 1, yield value is during less than 257.0Pa, but powder levelling, powder can't levelling during greater than 257.0Pa when yield value, obvious cast streak shape is arranged, but judge No. three boracic fuel-rich propellant medicine slurry yield values accordingly less than the 260Pa levelling, be 6 hours working life.
Claims (5)
1. end hydroxy butadiene boracic fuel-rich propellant shop characteristic detection method is characterized in that it comprises following six steps:
Step 1, test is prepared: select the component of boracic fuel-rich propellant, preparation detects the medicine slurry;
Step 2, the medicine slurry is poured into a mould: set the cast parameter, water the injection slurry, obtain the mobile levelling data of medicine slurry and condition diagram;
Step 3, apparent viscosity detects: select test condition, test the different apparent viscosity constantly of described medicine slurry;
Step 4, yield value detects: select test condition, test the different yield values constantly of described medicine slurry;
Step 5, test figure tabulation: obtain the shop characteristic related data, comprise " apparent viscosity " and " yield value ", flow, levelling area;
Step 6 is judged: according to different yield value medicine slurry levelling areas and levelling condition diagram shown in the test figure tabulation, determine the levelling yield value and judge " working life " working life.
2. end hydroxy butadiene boracic fuel-rich propellant shop characteristic detection method according to claim 1, it is characterized in that: the preparation test samples stage, adopt vertical mixer to prepare the COMPOSITE SOLID PROPELLANT slurry samples, discharging is placed under 50 ℃, with the different time points sampling, be used for pouring experiment.
3. end hydroxy butadiene boracic fuel-rich propellant shop characteristic detection method according to claim 1 is characterized in that: the cast sample stage, set the cast parameter stage, and choose the cast card, the shower nozzle specification is φ 4mm * 7 holes, thickness of slab δ=2mm; The operation valve blanking hole is that 14mm * 7mm is rectangular-shaped; When the operation valve standard-sized sheet, the blanking flow is greater than the blanking total flow in all shower nozzle holes of cast card, to guarantee the actual blanking rate of shower nozzle hole under uncontrolled state, each time point duration of pouring is 60 seconds, pouring temperature is 50 ℃, sample is cast in the glass-board surface that posts coordinate paper, calculates blanking flow and levelling area, obtains the levelling condition diagram.
4. end hydroxy butadiene boracic fuel-rich propellant shop characteristic detection method according to claim 1, it is characterized in that: select the testing conditions stage, select German Haake RV20 viscosity meter for use, adopt the M5/SV2 measuring system, probe temperature is 50 ℃, and the test shear rate is 1s
-1, detect apparent viscosity; Select German Haake RV20 viscosity meter for use, adopt the M5/SV2FL measuring system, probe temperature is 50 ℃, and the test shear rate is 0.1s
-1, detect yield value.
5. end hydroxy butadiene boracic fuel-rich propellant shop characteristic detection method according to claim 1, it is characterized in that: working life decision stage, according to the shop characteristic related data, by medicine slurry levelling condition diagram, obtain that flat bright, the powder of powder is comparatively flat brightly to have streak, powder can not three kinds of different variations of tangible cast streak be arranged levelling; Comparatively flat bright the streak time point is arranged is medicine slurry working life with powder; This moment institute's medicine of surveying slurry apparent viscosity, yield value data are as the criterion of evaluation propellant expansion charge process performance.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030866A (en) * | 2014-06-06 | 2014-09-10 | 中国航天科工集团第六研究院四十六所 | Seismic charge prepared by waste hydroxyl-terminated polyb (HTPB) solid propellant slurry and application thereof |
| CN112595630A (en) * | 2020-11-23 | 2021-04-02 | 上海航天化工应用研究所 | Solid propellant slurry leveling property testing device and method |
| CN112986055A (en) * | 2021-03-19 | 2021-06-18 | 西安近代化学研究所 | Propellant slurry leveling property detection and analysis system |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4221617A (en) * | 1966-09-30 | 1980-09-09 | United Technologies Corporation | Surfactant additives for solid propellants |
| US4637847A (en) * | 1983-12-21 | 1987-01-20 | Atlantic Research Corporation | Chemical passivation of amorphous boron powder |
-
2012
- 2012-12-24 CN CN2012105649071A patent/CN103207262A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4221617A (en) * | 1966-09-30 | 1980-09-09 | United Technologies Corporation | Surfactant additives for solid propellants |
| US4637847A (en) * | 1983-12-21 | 1987-01-20 | Atlantic Research Corporation | Chemical passivation of amorphous boron powder |
Non-Patent Citations (4)
| Title |
|---|
| 唐汉祥 等: "硼粉改性对推进剂工艺性能的影响", 《含能材料》 * |
| 唐汉祥: "推进剂药浆流平性研究", 《推进技术》 * |
| 唐汉祥: "推进剂药浆混合均匀性研究", 《推进技术》 * |
| 唐汉祥: "氨基甲酸酯基对推进剂工艺性能的影响", 《推进技术》 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104030866A (en) * | 2014-06-06 | 2014-09-10 | 中国航天科工集团第六研究院四十六所 | Seismic charge prepared by waste hydroxyl-terminated polyb (HTPB) solid propellant slurry and application thereof |
| CN104030866B (en) * | 2014-06-06 | 2017-04-19 | 中国航天科工集团第六研究院四十六所 | Seismic charge prepared by waste hydroxyl-terminated polyb (HTPB) solid propellant slurry and application thereof |
| CN112595630A (en) * | 2020-11-23 | 2021-04-02 | 上海航天化工应用研究所 | Solid propellant slurry leveling property testing device and method |
| CN112986055A (en) * | 2021-03-19 | 2021-06-18 | 西安近代化学研究所 | Propellant slurry leveling property detection and analysis system |
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Application publication date: 20130717 |