Search results

Experiments are carried out on general CA6140 lathe with hard alloy YT15 of variable-positions at cutting tool (κr=75o , γo=14o , αo=6o ) and the C45 steel as working material.
Wang: Chinese Journal of Mechanical Engineering, Vol.36 (2000) No.8, pp.6
Ngoi: Journal of Material Processing Technology, Vol.101 (2000), pp.287
International Journal of Machine Tools & Manufacture, Vol.45 (2005), pp.687
Volkov: Lubrication Science, (1998) No.11, pp.51.

Methods and materials In order to perform a comprehensive study of chemical registration management, and finally come to the conclusion of chemical management among economies, eight economic entities were selected with different levels of economic development, protection awareness, and management capacity.
We conducted an extensive literature review using databases such as Web of Knowledge, Science Direct, Springer link, Google Scholar, CNKI (database of Chinese journal) up to October 2014.
If the item contains Substance of Very High Concern (SVHC) candidate list of substances, and the mass fraction of the material and/or output to certain requirements, enterprises need to report to the European chemicals agency and provide sufficient information [7].
Kocha, N.A.Ashford, Rethinking the role of information in chemicals policy: implications for TSCA and REACH, Journal of Cleaner Production, 14(2006)31-46
Journal of Chemistry and Chemical Engineering, 2(2008)76-78

Materials and Methods The experimental site (30°26′N, 106°26′E, 230 m above the sea level) is located at the farm of Southwest University, Chongqing, China.
The soil is a Hydragric Anthrosol (the FAO soil classification) developed from the parent material of Jurassic purple shale and sandstone weathering product.
Journal of Soil and Water Conservation, 21(5), 55-58 (2007)
Journal of Soil and Water Conservation, 20(3), 106-109 (2006)
Chinese Journal of Eco-Agriculture, 17(1), 1-6 (2009).

BFRP bar consists of basalt fiber and resin matrix materials.
Construction and Building Materials, 2011, 25(10):3878-3885
Construction and Building Materials, 1997, 11(7–8): 443-451
Journal of Constructional Steel Research, 2008, 64(11):1194-1198
Corrosion Science, 2011, 53(1): 426-431

There is therefore the need for the development of methods to estimate the in-situ strength of the concrete in the structure, which take into account the quality of materials and mix proportions, curing and quality of workmanship.
By considering various concrete mix designs and various sizes of aggregates, families of correlation curves may also be obtained for 7days, 14days, 21days and 28days strength of concrete to enable quick determination of in-situ strength of concrete materials.
Shar, 'Monitoring the setting and hardening of cment-based materials with ultrasound", Concrete Science and Engineering 1 (2) (1999) pp83- 91
ACI Material Journal 97 (6) (2000) 675-683 [9] T.
Akkaya, "Nondestructive measurement of concrete strength gain by an ultrasonic wave reflection method", Materials and Structurea, 2003, I T I North Western edu.

Introduction Friction Stir Welding (FSW) is a recent method of joining materials, patented by the welding institute (TWI) in 1991.
Because melting is avoided, FSW also has potential for bonding many materials that are difficult or impossible to weld by more conventional methods, including alloys that are susceptible to solidification cracking, high-strength steels, metal-matrix composites, and other advanced alloys.
Evangelista, TEM analysis of a friction stir-welded butt joint of Al-Si- Mg alloys, Materials Chemistry and Physics 81 (2003) 289-292
Ma, Friction stir welding and processing, Materials Science and Engineering R 50 (2005) 1-78 [4] I.
MILLER, Effect of Friction Stir Welding on Dynamic Properties of AA2024-T3 and AA7075-T7351, Research Suplement, Welding Journal, August 2001, 196-s - 200-s.

Further study in this area will relate to evolving toolpath compensation strategies for all the rest feature combinations, and validating the generated strategies for additional materials, sheet thicknesses and part sizes.
Batra: International Journal of Machine Tools & Manufacture, Vol. 41 (2001), pp. 1295-1322 [2] J.
Lauwers: Key Engineering Materials Vol. 344 (2007), p. 527-534 [3] M.
Muzzupappa: Journal of Materials Processing Technology, Volumes 153-154 (2004), pp. 501-507 [5] J M Allwood, G P F King, and J Duflou: Proc I Mech E, Part B, J Eng Manuf, Vol 219 (2004), No.
Savolainen: Lecture Notes in Computer Science, Volume 2379 (2002), pp. 37-60 [8] S.

The specimens made from these ceramic materials and alkali activators (potassium silicate, sodium silicate with NaOH (15M), phosphoric acid, sodium silicate, potassium hydroxide and sodium hydroxide) were burned at temperatures of 600 oC and 900 oC and they were characterized by evaluation of water absorption and compressive strength.
For the production of geopolymers, the main raw materials used are materials with a large amount of Si and Al present in its structure, such as blast furnace slag (waste generated by the steel industry), coal ash, fly ash and bottom ash, metakaolin and clay [5].
The first is the characterization of the raw material and the second, the characterization of burned aggregates.
(Top Telha) company, for providing raw material for this research.
ACI Materials Journal, v.88, n.3, p.240-247, 1991

And triangle coal in the roof is hard to control, fall down easily and fill up hardly, easily lead to gas accumulation, a large security risk, materials consumed in large quantities top results, high cost [2].
The material of bolt in roof is common round steel(Q235), diameter of bolt in roof Ф=22mm, length of bolt in roof L=2200mm, spacing of row and column in roof is 800mm×800mm; diameter of cable in roof Ф=15.24mm, length of cable in roof L=7000mm, spacing of row and column in roof is 1800mm×2100mm;the diamond metal mining used mesh in roof is made by iron wire, feature size of mesh holes is 30mm, the wide of mesh netting is 1000mm; The material of bolt in two sides is equal strength thread steel, diameter of bolt in two sides Ф=22mm, length of bolt in two sides L=2500mm, spacing of row and column in two sides is 700mm×700mm;steel strip similar to W is used both in roof and two sides.
Reference [1] Tan guowen, Zhao hui: Coal Technology, 2007,26(12):51-53(In Chinese) [2] Hu zhongfu, Tao yonglin: Coal Technology, 2004,23(1):39-41(In Chinese) [3] Wei Sijiang, He xue ke, Gou pan feng: Journal of Xi an University of Science & Technology, 2004,24(1):28-30(In Chinese) [4] Wang Jinhua: Journl of China Coal Society, 2007, 32(2)114(In Chinese) [5] Zhang Miaofeng, Wang jun,Wu yong ping: Journal of Xi an University of Science & Technology, 2000,20(2):97-100(In Chinese) [6] Group of bolt support in Ministry of Coal Industry.Technical specification of blot support of roadway in coal seam[S] .1997.08.

Study on the Application Results of "Dry Cleaning" Mode in Port Dust Control Jinrui Shang1, a 1 College of Environmental Science and Engineering, Ocean University of China ashangjr@rzport.com Key Words: Dry Cleaning Mode, Port, Dust Control.
Clear work division of the dust control in environmental sector, technology research and development department, equipment, materials procurement departments, as well as all production and logistics departments, make sure linkage, defense and joint control.
Hebei University of Science and Technology, 2011 (In Chinese) [3] Qingxin Lv, Ningning Hong.
Journal of Waterway and Harbor, 2008 (29) (In Chinese) [4] Shan Guo, Shuifen Zhan.
Journal of Waterway and Harbor, 2006 (27) (In Chinese) [5] Weiping Wu.