www.melanexjou.fora.pl

[loiwtjsf]

U.S. low-grade copper scrap prices


Granular to short strip and even more difficult. So, in actual production use of the solution treatment time,[link widoczny dla zalogowanych], heat, eutectic silicon without modification generally rendered as three-dimensional structure and the residual sheet strip shape coexistence. From the above analysis can also be noted that when using the optical method were from the plane shape of silicon phase factor | s to evaluate the eutectic Si particles during solution treatment of post-effect, for the modification of eutectic silicon and were not bad silicon should be treated differently. This is because | s cross-section can only reflect the morphology of silicon crystals,[link widoczny dla zalogowanych], but can not express the characteristics of the three-dimensional structure. Modification of eutectic silicon and eutectic silicon is not bad after solution treatment, although the surface microstructure morphology similar to have occurred \distribution of discrete particles, without modification of the eutectic Si is also maintained good continuity of the distribution strip, which is split on the role of the matrix alloy of course, better than the former. Similarly, the data in Table 2,, '. . . . . . . . . . . . . . . . , Tt: U.S. low-grade copper scrap prices: ÷ ÷: Recently, due to continued strong demand for copper waste abroad, combined with off:: domestic copper waste inventory levels low, resulting in low-grade copper scrap:: prices. Recently, the United States east of scrap brass ingot prices rose 2.2:: Off hours / kg to 4.7 U.S. dollars / kg, scrap car radiators, water equivalent: ÷ grid of $ 3.7 / kg; Midwest brass ingot price of 4 .7 beauty. , -L/ttttkg, Scrap car radiators,[link widoczny dla zalogowanych], water tanks and other prices the same for $ 3.7 / t + +} kg. ÷++÷( Published in \Because of its three-dimensional structure after solution treatment is basically the same with the former, and thus its alloys actually be closer to the former. 3 Conclusions (1) cast Al-Si eutectic alloy of silicon phase in the solution treatment morphological changes occur, the change process and the effects not only with the solution temperature and holding time, but also to be determined by the degenerate state of the eutectic Si casting state structure, modification of the silicon phase of the granulation process has significant role in promoting. (2) Modification of eutectic silicon and eutectic silicon is not bad after solution treatment often have different three-dimensional shape, the former granular structure to the main structure of the latter the main strip. (3) in the use of shape factor | s evaluation of the effect of eutectic silicon particles, attention should consider the different three-dimensional structure of silicon phase impact. References lSaigalA, BerryT. StudyoftheEffectsofVolumeFraction. SizeandShapeofSolutionParticlesonMechanicalPropertiesinA1-SiAlloysUsingFiniteElementMethod. AFSTransaction, 1985,93:699 ~ 7042 Kato sharp times. Silicon phase forms on the Al · si alloy castings fracture toughness. Light Metal, 1980 (3): 147 ~ 1533 ZHU Pei Yue, Liu Qiyang, Hou Tingxiu. Granular eutectic silicon process. Special Casting & Nonferrous Alloys, 1985 (6): l ~ 74 Zhang Ji Yue, WANG Zhi-min, Huang Rong plot,[link widoczny dla zalogowanych], and so on. Different Modifications on ZLIO1 alloy of eutectic silicon particle effects. Special Casting & Nonferrous Alloys, 2000 (6): 32 ~ 345 Sun Yu, Chen Jin, Sun Guoxiong. Silicon phase evolution of Al-Si alloy and its mechanical properties. Special Casting & Nonferrous Alloys,[link widoczny dla zalogowanych], 2001 (6): l ~ 46 Lai Huaqing, Li Huaijun, Lai Chun Chuan. Al-Si alloys of eutectic silicon particles. Automotive Technology, 2002 (1): 27 ~ 29 (Editor: Chen Wei-chen), '. . . . . \\over a:: January rose 20 euros / ton. Fesil Norwegian silicon production enterprises, said,: t the raw materials and energy costs, companies may cut early next year ÷; production. the other silicon manufacturers Elkem also said to The current price;: Georgia, the company is difficult to profit, may choose to cut production and sale of electricity together:: with.: ÷ (Published in \
相关的主题文章：


ugg stivali M-A organization Bauschinger effect _2

[link widoczny dla zalogowanych]

[link widoczny dla zalogowanych]