Shanxi North Xingan Chemical Industry Co.

Taiyuan, China

Shanxi North Xingan Chemical Industry Co.

Taiyuan, China

Time filter

Source Type

Cheng S.-C.,Nanjing University of Science and Technology | Lin X.-Y.,Nanjing University of Science and Technology | Li Y.,Nanjing University of Science and Technology | Jian G.-X.,Shanxi North Xingan Chemical Industry Co.
Guti Huojian Jishu/Journal of Solid Rocket Technology | Year: 2016

A method that tests multiple solid components blending of solid propellant by NIR-spectroscopy was established. Based on the blending of PVB, MA and Al powder in water, NIR absorption spectrums were obtained by scanning samples. The spectrums were pre-processed by smoothing, mean normalization, standard normal variate(SNV), baseline offset, first and second derivate, then PLS and cross validation were used to build quantitative calibration models of the three components. The results show that different pre-processing methods have different influences. SNV pre-processing can eliminate the influence of spectral scattering, which may obtain the best quantitative calibration model. The determination coefficients are all more than 0.5, MA's is the biggest, 0.991 377. Al powder which hasn't special absorption of NIR spectrum also gets a good model, and its determination coefficient is up to 0.984 637. When this three models were usd to predict unknown sample, absolute errors are all less than 1%. Therefore, it is feasible to test the blending of multiple solid components by NIR-spectroscopy. © 2016, Editorial Dept. of JSRT. All right reserved.


Han M.-Y.,Shanxi North Xingan Chemical Industry Co. | Zhu K.-J.,Shanxi North Xingan Chemical Industry Co. | Zhu K.-J.,China Institute of Technology | Chen Y.-L.,Shanxi North Xingan Chemical Industry Co.
Guti Huojian Jishu/Journal of Solid Rocket Technology | Year: 2011

On the basis of the formula of typical modified double-base propellant, the inert substitute for high-energy components of liquid explosive A (GY) and solid explosive B (GG) were selected and analyzed. The main components of the substitute were determined, which are nitrocellulose, inert plasticizer (DZ-1) and inert solid filler (YT-1) individually. Meanwhile, the influences of the soluble property of the plasticizer, the content of the solid filler and the ratio of solvent and nitrocellulose on the flow behavior of the substitute for modified double-base propellant were studied. The results showed that these three factors could alter effectively the apparent viscosity of the substitute, and the influence of the ratio of solvent and nitrocellulose was the most obvious. As a result, the typical substitute of the modified double-base propellant can be developed.


Wang W.-J.,Beijing Institute of Technology | Cui X.-Y.,Beijing Institute of Technology | Zhu H.-D.,Beijing Institute of Technology | Shao Z.-Q.,Beijing Institute of Technology | Zuo Y.-Y.,Shanxi North Xingan Chemical Industry Ltd. Co.
Binggong Xuebao/Acta Armamentarii | Year: 2016

Cellulose nano-fibers (CNFs) are prepared by TEMPO-mediated oxidation combined with homogenizing mechanical treatment. The carboxyl groups on the surface of CNFs are removed by an alkalization process. Then CNFs are chemically modified by a mixture of nitric acid and dichloromethane to obtain nitrified CNF (NCNF). NCNFs could readily suspend and well disperse in acetone. The structure and properties of NCNFs are examined using Fourier transform infrared spectroscopy (FTIR), elemental analysis (EA), and transmission electron microscopy (TEM). The nano-nitrocellulose composite films with NCNF as reinforcment are prepared by a casting/evaporation technique. The tensile properties of the nanocomposite films are tested. The results show that the tensile strength, Young's modulus, and elongation at break of the nanocomposite films increase simultaneously in comparison with that of neat NC. The influence of cellulose nanowhiskers (CNWs) and CNFs on the tensile properties of nanocomposite films is studied. As reinforcement, CNFs demonstrate higher efficiency compared to CNWs because of their larger aspect ratio. © 2016, China Ordnance Society. All right reserved.


Dong B.-B.,Nanjing University of Science and Technology | Guo X.-D.,Nanjing University of Science and Technology | Yang X.-Q.,Shanxi North Xingan Chemical Industry Co. | Miao C.-Q.,Shanxi North Xingan Chemical Industry Co. | And 2 more authors.
Guti Huojian Jishu/Journal of Solid Rocket Technology | Year: 2015

Rubber-coated layers and propellant tablets were treated by RFD-200 RF single electrode low temperature plasma surface treatment machines. The surface morphology of rubber-coated layer and propellant tablets were characterized by scanning electron microscopy(SEM) and X-ray photoelectron spectroscopy(XPS). The characterization of RDX compositions and thermal decomposition characteristics were studied by Fourier transform infrared spectroscopy(FT-IR), thermal gravimetric(TG) and differential scanning calorimetry(DSC). The adhesive properties between rubber-coated layer and propellant tablets were evaluated by universal material testing machine. Experimental results show that after being treated by the device, it would not affect the nature of the propellant tablets and rubber-coated layer, but its surface morphology becomes rough, so that the tensile strength and the maximum force increase by 40% and 37.6% between the treated sheet samples. And the most vigorous columnar samples increase by 74.4% after being treated and the effective length significantly increases. Thus, the bonding strength of the treated sample can achieve the level of traditional hand-grinding process. ©, 2015, Journal of Solid Rocket Technology. All right reserved.


Deng H.-Y.,Nanjing University of Science and Technology | Feng F.,Nanjing University of Science and Technology | Wu X.-S.,Nanjing University of Science and Technology | Yu X.-F.,Nanjing University of Science and Technology | Zuo Y.-Y.,Shanxi North Xingan Chemical Industry Co.
Binggong Xuebao/Acta Armamentarii | Year: 2016

In order to study the effect of eccentric impact of jet on the impinging atomization of gel propellant, a relative experimental system is established, and a gel propellant as well as a simulant are prepared. Jet behavior, impinging liquid sheet and droplet size distribution at different eccentricities are measured. Spray incline angle is deduced theoretically and compared to the experimental results under eccentric impingement. The results indicate that the disturbances on jets are strengthened with increase in jet velocity. However, the deformations of the jets near injectors are all very small at different jet velocities since the disturbance is limited. The development and breakup of liquid sheet are basically the same under different eccentricities. While the eccentricity exceeds 1.5/6, two darker regions with a certain angle appear at the impinging point, resulting in the enhancement of flux nonsymmetry. As the eccentricity is improved, the spray incline angle enlarges and is less than the theoretical result. The eccentricity has a little influence on the droplet size distribution of impinging atomization, but Sauter mean diameter (SMD) with eccentricity is always lower than that without eccentricity. And SMD reaches the smallest when the eccentricity equals to 0.5/6. © 2016, Editorial Board of Acta Armamentarii. All right reserved.


Liu S.-E.,Shanxi North Xingan Chemical Industry Co. | Chen J.-F.,Shanxi North Xingan Chemical Industry Co. | Pan B.,Shanxi North Xingan Chemical Industry Co. | Zhao M.-L.,Shanxi North Xingan Chemical Industry Co. | And 3 more authors.
Huozhayao Xuebao/Chinese Journal of Explosives and Propellants | Year: 2014

A modified double-base propellant containing HMX and Al powder (HMX/Al-CMDB) with P-Nitro-N-methylamine (PNMA) as energetic chemical stabilizer was prepared by traditional solventless method and screw extrusion process. The effects of PNMA on the preparation process, chemical stability, mechanical performance and energy characteristics of HMX/Al-CMDB propellant were studied. The results show that the time needed for color change in methyl-violet test is substantially increased when N, N'-dimethyl-N,N'-diphenylurea (C2) is partially or totally replaced by PNMA, indicating that the stability of the HMX/Al-CMDB propellant containing PNMA is significantly improved. The time needed for color change of test paper increases with the increase of the proportion of PNMA in the formulation. After the substitution of C2 by PNMA, the density of the propellant has no change, the heat of detonation increases by 52kJ/kg and the energy increases remarkably, which is beneficial to reduce pressure exponent and has no adverse effect on the mechanical property and manufacturing process of the propellant. ©, 2014, China Ordnance Industry Corporation. All right reserved.


Jin F.,Institute of Chemical Technology | Liu B.,Shanxi North Xingan Chemical Industry Co. | Li X.,Institute of Chemical Technology | Li B.,Institute of Chemical Technology | Yang H.,Institute of Chemical Technology
Acta Petrologica Sinica | Year: 2013

Ca(Ac)2/ZnO was prepared by impregnation and with which CaO/ZnO was made by high temperature calcination. Effects of impregnating solution mass fraction, calcination temperature and calcination time on the catalytic activity of CaO/ZnO were investigated through orthogonal experiments. The transesterification of castor oil with methanol was studied by using CaO/ZnO as a catalyst, prepared under the optimal conditions. Ca(Ac)2/ZnO) and CaO/ZnO prepared at optimal conditions were characterized by TG-DTG, XRD, BET. The results showed that the suitable preparation conditions of CaO/ZnO was impregnating solution mass fraction 0.2, calcination temperature 973 K and calcination time 3 h. Under the conditions of alcohol/oil molar ratio 9, catalyst/oil mass ratio 0.03, reaction temperature 338 K and reaction time 4.5 h, castor oil conversion could reach 99.7%. There were two distinct weightless peaks at 690 K and 1020 K in TG-DTG curves of Ca (Ac)2/ZnO. CaO/ZnO and ZnO had the same crystalline structure, displaying CaO being utterly dispersed on ZnO. The surface area of CaO/ZnO was 6.10 m2g and its average pore radius was 2.59 nm.


Han M.-Y.,Shanxi North Xingan Chemical Industry Co. | Zheng J.-L.,Shanxi North Xingan Chemical Industry Co. | Song W.-A.,North University of China | Yang S.-M.,North University of China
Hanneng Cailiao/Chinese Journal of Energetic Materials | Year: 2011

According to the requirements of the physical characteristics, the manufactural process and the manufactural safety for the powders, the capacitor method was selected on the basis of the comparison and analysis for all kinds of the methods for the on-line moisture-bearing powders. The experimental research was carried out for the powder of moisture content from 8% to 20% under different temperatures (100°C, 150°C, 200°C, 250°C). Results show that the powder weight of the given capacity is monotonic decreasing and the powder capacitance is monotonic increasing while the moisture content is increasing. Therefore, the capacitor method for the moisture content powder has high sensitivity and the on-line testing technique is feasible. Finally, some manufactural suggestions for the engineering equipments were put forward.


Cheng S.-C.,Nanjing University of Science and Technology | Lin X.-Y.,Nanjing University of Science and Technology | Li Y.,Nanjing University of Science and Technology | Jian G.-X.,Shanxi North Xingan Chemical Industry Co.
Hanneng Cailiao/Chinese Journal of Energetic Materials | Year: 2016

To establish a rapid quantitative test method of blending uniformity of modified double-base propellant components, a near infrared (NIR) spectrometer was adopted to test the double-base absorbed sample and to quantitatively analyze the contents of each component and their dispersion uniformity. Firstly, based on sample testing, the quantitative calibration models of the components: nitrocellulose(NC), nitroglycerine(NG), cyclotrimethylenetrinitramine(RDX) and water were established and the correlation coefficients of each component model are more than 0.98, and the mean values of components' absolute errors obtained by internal validation are less than 2%. Then NIR spectra of samples in the blending process were continually collected. The component contents of sample were predicted by the established models. The absolute errors of the predicted results and the actual values are less than 2%. The blending uniformity of sample was analyzed by coefficient of variation (CV) method for the contents of each component and and moving block standard deviation (MBSD) method for the original spectra of samples. The CV values of each component are less than 1.5%, while MBSD value of the sample is less than 0.001. Two kinds of evaluation indexes have reached steady state after 2.5 min, indicating that sample components had uniform distribution. Results show that it is feasible to use near infrared (NIR) spectroscopy to test the blending uniformity of modified double-base propellant components. © 2016, Editorial Board of Chinese Chinese Journal of Energetic Materials. All right reserved.


Chang S.-J.,North University of China | Yang X.-Q.,Shanxi North Xingan Chemical Industry Co. | Zhao L.-K.,Shanxi North Xingan Chemical Industry Co.
Xiandai Huagong/Modern Chemical Industry | Year: 2011

In order to reduce the curing temperature of HTPB-IPDI binder system and shorten curing time, the catalysis effects of three kinds of catalysts, ferric-acetylacetonate (Fe(AA)3), dibutyltin dilaurate (T-12) and triphenyl bismuth (TPB) on the curing catalysis of HTPB-IPDI binder system are investigated. The experimental results show that the pot life of HTPB-IPDI binder system may reach 6 h as the TPB quality percent is 0.05%. TPB is an ideal curing catalyst of HTPB-IPDI binder system.

Loading Shanxi North Xingan Chemical Industry Co. collaborators
Loading Shanxi North Xingan Chemical Industry Co. collaborators