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Online since: November 2013
Authors: Geng Guang Xu, Qiu An Huang, Yong Jiang Wei, Xue Mei Liu
Aluminized explosives and explosive energy design with meso system components are also closely linked,such as Al powder particle size,surface area and other factors affect meso explosion heat,detonation pressure, detonation velocity and energy of wavefront consumption.Charge density and the charge process also have a significant impact on the structure of energy output of aluminized explosives.Therefore,for the design of aluminized energy explosives,it should be calculated on the basis of repeated theoretical repeated experiments,in order to obtain a good overall performance for explosives[6].
2.3 Formula design
Explosive JULH-1 is made up of RDX as its main explosive,AP as its oxidizing agent,Al as its raw materials and HTPB as its binder.Making the raw materials to micor order or sub-nanometerorder by ultrafine grinding and using the technology of grain composition,several experiments of measuring energy output structure were carried out under water and some scientific and reasonable
Conclusion (1) Ultrafine particles of explosive mixture containing the number of stomata more than ordinary explosives,the pore volume and surface energy of the stomata tends to be the same.Under the effect of shock wave formation of hot blast,the hot is rapid reacted, other unexploded explosive powder is set off the energy released by enough to quickly.The utilization of the explosive potential can greatly improve
Conclusion (1) Ultrafine particles of explosive mixture containing the number of stomata more than ordinary explosives,the pore volume and surface energy of the stomata tends to be the same.Under the effect of shock wave formation of hot blast,the hot is rapid reacted, other unexploded explosive powder is set off the energy released by enough to quickly.The utilization of the explosive potential can greatly improve
Online since: February 2014
Authors: Zhi Jun He, Jing Li, Jin Xin Liu
The sample Brinell hardness results were in Fig.3, the sample3, sample 5 and sample 7 hardness were lowest, which was during 190-210HB from the figure, the typical organization was the F+P, the hardness number was high, which was during 340 to 350, the organization was the stripped bainite, the sample 4, sample 6 and sample 8 had the organization of the F+P+B, and the hardness was during 300 to 320.
The effect of V-Nb on the growth of austenite grains in 17CrNiMo6 gear steel[J].
The effect of V-Nb on the growth of austenite grains in 17CrNiMo6 gear steel[J].
Online since: February 2014
Authors: Zhao Zhang, Qi An Chen, Cheng Lu, Lin Chen, Yun Bo Chen, Yi Jie Gu, Meng Wang, Ling Li Zuo, Hong Quan Liu, Yan Min Wang
Carbon coating can not only improve the electronic conductivity of the LiFePO4, but also effectively control the grain growth of the LiFePO4 [2].
Fig.2 (b) shows the cycle capability of the LiFePO4/C at different current rates, and the cycle number is 5 at every current rate.
Fig.2 (b) shows the cycle capability of the LiFePO4/C at different current rates, and the cycle number is 5 at every current rate.
Online since: December 2012
Authors: Jin Xia Zhang, Fu Sheng Niu, Xing Guo Wang, Li Nan Tian
Table 5 Industry requirements of kyanite raw material in China
title
Al2O3 [%]
SiO2 [%]
Fe2O3
[%]
TiO2
[%]
K2O+Na2O
[%]
Refractability
[°C]
Advanced refractory
>50
-
<1-2
-
<1~1.5
≥1790
Technical ceramics
>55
-
<0.5-0.15
-
<0.5
-
Silicon-aluminium alloy
>58
<37
<1.5
-
-
-
Refractory(Baoshan iron and steel plant)
≥60
-
≤1.5
<2.0
-
≥1825
5 Kyanite’s beneficiation process
As for fine-grained kyanite, the flotation is generally adopted.
A large number of research results confirm that kyanite ore flotation can be in acidic, alkaline and neutral conditions.
A large number of research results confirm that kyanite ore flotation can be in acidic, alkaline and neutral conditions.
The Experimental Study of Contaminant Removal in Water Quenched Slag Biological Aerated Filter (BAF)
Online since: December 2012
Authors: Yan Zhen Yu, Long Long Gao, Yu Xing Zhou, Miao Wan Li, Hua Dong Zhang
Introduction
Water quenched slag is the most number of a waste residue in metallurgical industry,it is vitreous structure material that has high potential activity[1], In recent years,its recycling is more and more importance, So how to make the waste be useful and cycling resource is an important issue, it has aroused extensive concern of scholars at home and abroad.
The production process as following : Material processing→ingredient→mixed evenly→forming→maintenance→wash→dry→ performance test Characteristics test of products.The performance of products that made on best design conditions were tested and ,the surface morphological structures were observed with SEM and compared with ceramsite, result shows in table 3 Table. 3 The comparison on elemental property between water quenched slag filter and ceramsite Size /(mm) Density /(kg·m-3) Wear rate /(%) Damaged rate /(%) Porosity /(%) Specific area /(%) Biomass /(g·g) Hydrochloric acid capacity rate (%) water quenched slag 3~5 1982.6 1.50 1.15 48.17 13.79 0.045 32.15 ceramsite 3~5 2262.4 1.80 1.62 29.59 0.73 0.029 2.83 The data from table 3 shows that this new type of filter compared with the ceramic grain has following trait, water quenched slag filter material had small density, wear rate and damaged rate, excellent mechanical strength,this can be capable of resisting hydrodynamic shear
The production process as following : Material processing→ingredient→mixed evenly→forming→maintenance→wash→dry→ performance test Characteristics test of products.The performance of products that made on best design conditions were tested and ,the surface morphological structures were observed with SEM and compared with ceramsite, result shows in table 3 Table. 3 The comparison on elemental property between water quenched slag filter and ceramsite Size /(mm) Density /(kg·m-3) Wear rate /(%) Damaged rate /(%) Porosity /(%) Specific area /(%) Biomass /(g·g) Hydrochloric acid capacity rate (%) water quenched slag 3~5 1982.6 1.50 1.15 48.17 13.79 0.045 32.15 ceramsite 3~5 2262.4 1.80 1.62 29.59 0.73 0.029 2.83 The data from table 3 shows that this new type of filter compared with the ceramic grain has following trait, water quenched slag filter material had small density, wear rate and damaged rate, excellent mechanical strength,this can be capable of resisting hydrodynamic shear
Online since: January 2013
Authors: Yan Ma, Han Guo
That is to say, the length from Plane B to Plane A should be:
Lab= L1/4 (2)
Width of Plane A (i.e. width of the palm) is:
La= L1/2 (3)
Human’s wrist length (Lb), has no proportional relation to other parts of human body, so is a relatively independent number.
By cutting the wood cell lengthways along the grain, micron parings could be formed.
By cutting the wood cell lengthways along the grain, micron parings could be formed.
Online since: June 2014
Authors: Yan Hui Liu, Ze Kun Yao, Yang Nan, Guo Bao Yang, Yong Quan Ning
The contour number represents the efficiency of power dissipation (η).
To summarized, this kind of motion maps can be used to forecast the hot workability, when the microstructure characterization (including the elements, phase composition and grain size, etc.) has been involved in the maps in future.
To summarized, this kind of motion maps can be used to forecast the hot workability, when the microstructure characterization (including the elements, phase composition and grain size, etc.) has been involved in the maps in future.
Online since: August 2013
Authors: Xiang Ming Chen
The budding seeds were sown by 100 grains in one plastic box (size: 60×40×20cm).
Table 1 Entire plant mineral element analysis materials concentration mg.L-1 number Ca (%) Mg (%) Fe (mg.kg-1) Mn (mg.kg-1) Cu (mg.kg-1) Zn (mg.kg-1) corn ck 1 0.025 0.338 311.2 165.6 13.01 57.48 corn 0.1 2 0.035 0.236 242.9 193.1 13.02 55.76 corn 0.5 3 0.048 0.339 245.7 199.9 14.34 52.94 corn 1.0 4 0.043 0.604 366.2 201.8 12.47 52.56 corn 1.5 5 0.039 0.256 336.1 196.0 11.71 47.30 corn 2.0 6 0.037 0.248 321.5 179.1 10.22 47.49 wheat ck 7 0.035 0.429 205.8 261.9 13.91 98.20 wheat 0.1 8 0.040 0.256 226.5 236.7 14.65 56.40 wheat 0.5 9 0.043 0.240 297.6 218.5 14.98 60.78 wheat 1.0 10 0.035 0.228 252.9 209.7 14.18 51.99 wheat 1.5 11 0.032 0.207 280.1 189.9 13.66 68.19 wheat 2.0 12 0.031 0.203 233.0 169.3 13.07 39.60 mung bean ck 13 0.014 0.324 356.0 122.7 17.06 69.59 mung bean0.1 14 0.028 0.759 634.6 147.1 17.09 78.16 mung bean0.5 15 0.046 0.627 884.3 210.0 17.18 74.27
Table 1 Entire plant mineral element analysis materials concentration mg.L-1 number Ca (%) Mg (%) Fe (mg.kg-1) Mn (mg.kg-1) Cu (mg.kg-1) Zn (mg.kg-1) corn ck 1 0.025 0.338 311.2 165.6 13.01 57.48 corn 0.1 2 0.035 0.236 242.9 193.1 13.02 55.76 corn 0.5 3 0.048 0.339 245.7 199.9 14.34 52.94 corn 1.0 4 0.043 0.604 366.2 201.8 12.47 52.56 corn 1.5 5 0.039 0.256 336.1 196.0 11.71 47.30 corn 2.0 6 0.037 0.248 321.5 179.1 10.22 47.49 wheat ck 7 0.035 0.429 205.8 261.9 13.91 98.20 wheat 0.1 8 0.040 0.256 226.5 236.7 14.65 56.40 wheat 0.5 9 0.043 0.240 297.6 218.5 14.98 60.78 wheat 1.0 10 0.035 0.228 252.9 209.7 14.18 51.99 wheat 1.5 11 0.032 0.207 280.1 189.9 13.66 68.19 wheat 2.0 12 0.031 0.203 233.0 169.3 13.07 39.60 mung bean ck 13 0.014 0.324 356.0 122.7 17.06 69.59 mung bean0.1 14 0.028 0.759 634.6 147.1 17.09 78.16 mung bean0.5 15 0.046 0.627 884.3 210.0 17.18 74.27
Online since: January 2013
Authors: Gui Ying Sha, Teng Liu, Zhao Hua Li, Yu Han, Jie Wang
The dominant feature of initial microstructure of the alloy is equiaxed recrystallized grains, as shown in Fig.1.
Furthermore, compared with the case of stress amplitude of 54 MPa, the number of tore facets for the case of stress amplitude of 66 MPa apparently increases.
Furthermore, compared with the case of stress amplitude of 54 MPa, the number of tore facets for the case of stress amplitude of 66 MPa apparently increases.