[1]王景澄,谢中元,刘晶.双螺杆捏合方式制备的三基发射药的流变性研究[J].爆破器材,2025,54(01):1-6.[doi:10.3969/j.issn.1001-8352.2025.01.001]
 WANG Jingcheng,XIE Zhongyuan,LIU Jing.Study on Rheological Properties of TriBase Gun Propellants Prepared by the Twin-Screw Kneading Method[J].EXPLOSIVE MATERIALS,2025,54(01):1-6.[doi:10.3969/j.issn.1001-8352.2025.01.001]
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双螺杆捏合方式制备的三基发射药的流变性研究()
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《爆破器材》[ISSN:1001-8352/CN:32-1163/TJ]

卷:
54
期数:
2025年01
页码:
1-6
栏目:
基础理论
出版日期:
2025-01-09

文章信息/Info

Title:
Study on Rheological Properties of TriBase Gun Propellants Prepared by the Twin-Screw Kneading Method
文章编号:
5956
作者:
王景澄谢中元刘晶
西安近代化学研究所(陕西西安,710065)
Author(s):
WANG Jingcheng XIE Zhongyuan LIU Jing
Xi’an Modern Chemistry Research Institute (Shaanxi Xi’an, 710065)
关键词:
三基发射药双螺杆挤出机毛细管流变仪流变性
Keywords:
tri-base gun propellant twin-screw extruder capillary rheometer rheological property
分类号:
TQ560.7; TJ410.4
DOI:
10.3969/j.issn.1001-8352.2025.01.001
文献标志码:
A
摘要:
为掌握三基发射药连续化捏合工艺中药料的流变特性,提高工艺模型的准确性,按照三基发射药代料配方制备了预混药料,使用双螺杆挤出机对预混药料进行捏合,并通过专用双料筒毛细管流变仪测试捏合后药料的流变特性。分别改变双螺杆挤出机的螺杆转速和捏合温度、药料的固含量和溶剂比,分析以上变量对三基发射药流变学参数的影响规律。结果表明:双螺杆捏合后,药料的本构方程与Carreau-Yasuda本构模型拟合程度较高;一定范围内,螺杆转速或捏合温度的提高会使捏合后的药料的剪切黏度降低;同时,螺杆转速的提高会使药料的停留时间减少,而过短的停留时间会导致捏合后的药料的黏度上升;固含量的增加或溶剂比的减小会使捏合后的药料的剪切黏度增大,而黏度增大会使药料的停留时间增长,一定程度上使药料受到更充分的捏合作用。
Abstract:
In order to understand rheological properties of tri-base gun propellants in the continuous kneading process and improve the accuracy of the process model, a kind of pre-mixed propellant was prepared according to the formula of the tri-base gun propellant substitute. The pre-mixed propellant was kneaded using a twin-screw extruder, and rheological properties of the kneaded propellant were tested by the special double-barrel capillary rheometer. Screw speed and kneading temperature of the twin-screw extruder, the solid content and solvent ratio of the propellant were changed to analyze the influence of these variables on rheological parameters of the tribase gun propellant. The results show that after twin-screw kneading, the constitutive equation of the tested material fits well with Carreau-Yasuada constitutive model. Within a certain range, an increase in screw speed or kneading temperature will reduce the shear viscosity of the kneaded material. At the same time, increasing the screw speed will reduce the residence time of the material, and the excessively short residence time will lead to an increase in the viscosity of the kneaded material. An increase in solid content or a decrease in solvent ratio will increase the shear viscosity of the kneaded material, and an increase in viscosity will lead to an increase in the residence time of the material. To a certain extent, it can enable the material to be more thoroughly kneaded.

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相似文献/References:

[1]黄亚峰,王晓峰,王红星,等.火炸药双螺杆挤出工艺的研究现状与发展[J].爆破器材,2013,42(04):41.[doi:10.3969/j.issn.1001-8352.2013.04.010]
 HUANG Yafeng,WANG Xiaofeng,WANG Hongxing,et al.Research Status and Development of the Twin Screw Extrusion Technology on the propellants and explosives[J].EXPLOSIVE MATERIALS,2013,42(01):41.[doi:10.3969/j.issn.1001-8352.2013.04.010]
[2]刘晶①②,谢中元①②,王琼林①②,等.三基发射药单螺杆压伸模具流场仿真及实验验证[J].爆破器材,2022,51(01):1.[doi:10.3969/j.issn.1001-8352.2022.01.001]
 LIU Jing,XIE Zhongyuan,WANG Qionglin,et al.Simulation and Experimental Verification of Flow Field of Single Screw Extrusion Mold Used in Three-Based Gun Propellant[J].EXPLOSIVE MATERIALS,2022,51(01):1.[doi:10.3969/j.issn.1001-8352.2022.01.001]

备注/Memo

备注/Memo:
收稿日期:2024-07-15
第一作者:王景澄 (2000— ),男,硕士研究生,主要从事火炸药制备工艺及装备研究。E-mail:13633888877@163.com
通信作者:谢中元 (1981—),男,博士,研究员,主要从事火炸药制备工艺研究。E-mail:18626324257@163.com
更新日期/Last Update: 2025-01-10