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Online since: January 2013
Authors: Shuang Bao Zhang, Li Na Li, Liu Xiang, Zhao Zong, Zhao Heng, Xue Fei Li, Chuan He, Wen Bang Wei
The techonology situation of veneer splicing in our country In 1989,coorperating with JiangXi Dongtai woodworker plant and adopting the universal milling way both at home and abroad,Nanjing forestry university successfully developed the veneer longitudinal splicing machine unit[3] which got into production in places like Jilin and Jiangsu,good economic benefits were obtained.The machine adopts the method of inclined joint to realize the longitudinal lengthening of veneers,processing two inclined plane of up and down on both head of the veneer and gluing on one plane;using inclined pressing to accomplish the joint alignment and heat press,lengthening the veneer and cutthe finished products into required length.The test and application results showed that the jointing of the splicing veneers possess high strength,no glue-cracking or rupture,in addition to the difference in wood color and grain,no evident influence were observed to the veneers’ physical and mechanical properties.In short
The main reason of the problems is that the testing equipment is not ideal, using the previous photoelectric display device to detect veneer has many deficiencies, for example, the detection is so strict and the work process is more complex that it’s not conducive to the production of a large number of high-efficiency.
Online since: December 2019
Authors: Natalia Yatsenko, Alexander I. Yatsenko, Liliya D. Popova, N.A. Vilbitskaya
From the point of view of granulometric composition, the raw material used is a fine dispersed loose clay of yellowish-gray-brown color with a low content of coarse-grained inclusions.
Clay is moderately plastic (plasticity number 9-10).
Online since: January 2005
Authors: Erika Kálmán, Zoltán Kálazi, Jenő Sólyom, Gábor Buza
The question arises, whether the ferrite microstructure seen after cooling is in fact formed from austenite (probably by a mechanism of phase transformation of a martensite-type), or it develops in the heating period, in which, in lack of time, it could not be transformed into austenite, only its grain boundaries moved.
The number of graphite particles getting into the melt pool increases continuously, since the melt islands having graphite in their interior and enclosed in the solid state part, abut and unify continuously with the melt pool at the surface (Fig. 7). 100µm Fig. 5.
Online since: July 2005
Authors: Wen Jiang Ding, Yan Ping Zhu, Yu Fan, Hong Tao Gao, Guo Hua Wu
Tamura [14, 15] believe that manganese disturbs the grain refinement of magnesium alloys.
Table 4 Statistical volume fraction of nonmetallic inclusions in the specimens Specimen code Number of fields Total area of fields(mm2) Maximum volume fraction (%) Minimum volume fraction (%) Average volume fraction (%) 0 100 1.4 6.53 0.95 2.06 1 100 1.4 0.55 0.16 0.21 2 100 1.4 1.01 0.25 0.86 3 100 1.4 0.52 0.19 0.23 Corrosion Resistance.
Online since: July 2012
Authors: Tao Zhu, Hai Rong Li, Yan Dong Wan, Sha Chen, Yu Jie Liu, Yu Yuan, Jin Lan Zhou
Adsorbent also can adsorb a large number of activated short life active substances in plasma discharge space or material to produce highly active free radicals before discharge.
Plasma-iron electrical material combination technology Filling iron electrical grain in discharge area can improve discharge form.
Online since: July 2012
Authors: Shao Guo Wen, Hong Mei Zhi, Jin Shen Chen
Therefore, certain number holes for abrasive tool cooling are very important.
However the size of abrasive particle should be smaller than that in the experiment, and never contain some big grain.
Online since: November 2012
Authors: Mei Liu, Liang Chi Zhang, Hai Hui Ruan
In Eq. (1), the six strain components are parameters to be calculated using least-square method if a sufficient number (more than six) of εΦΨ are obtained.
In Eq. (3), the direction-dependent X-ray elastic constants Ehkl can be determined by the Vook–Witt Grain Interaction Model [13].
Online since: June 2013
Authors: Han Xang Wang, Wen Jian Lan, Jian Zhang, Hao Jiang
The recursive LMS algorithm is expressed as:  (15) (16) (17) Where μ is scalar parameter (it determines the convergence of the adaptive process), W is the initial value, n is the number of weight vectors (it’s 5 in this experiment), i is the vector length of input signal.
(4) During colating, coarse grained sediment is filtered firstly.
Online since: June 2014
Authors: Anika Zafiah M. Rus, Mohd Imran bin Ghazali, Shaiqah Mohd Rus
The foam was cut into smaller cube size and was grained using rotor mill to form granulate of 6 mm, 2 mm and 0.50 mm.
The vibration damping test was measured by using Dynamic Portable Data Logger (Dewetron model number 24070037) and was performed according to ASTM D3580-95 standard test method for vibration in vertical linear motion [11].
Online since: March 2016
Authors: Li Ying Li, Bin Han, Dong Ming Liu
Introduction Oil contains a large number of corrosive substances.
Because of the heat preservation of root layer, the grain of the other two layers has grown.
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