最新刊期
卷 34 ， 期 10 ， 2014
- 摘要：Isothermal compression testing on 7050 aluminum alloy was conducted by using thermal simulator,and the flow stress data was presented at different strain rates and different temperatures for various true strains.Based on the experimental data,a BP neural network constitutive model for 7050 aluminum alloy was established.The analysis shows that the artificial neural network model for constitutive relationship exhibits a higher predicted precision,and it is verified from relativity and average relative error.Using the data modified by applying BP neural network,the processing map of 7050 aluminum alloy was drawn through the power dissipation map and instability map which were established based on the dynamic material modeling（DMM）.Then the processing zone and flow instability region based on processing map were determined.The results show that the optimal deformation parameters are presented as follows:deformation temperature of 420450℃,strain rate of 0.010.10s-1,and the maximum power dissipation coefficientηis 0.40.关键词：7050Aluminum Alloy;BP Neural Network;Constitutive Relation Model;Dynamic Material Model;Processing Map
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发布时间：2023-12-18 - 摘要：The Mg-Al-Zn alloy billets were produced by spraying deposition method.As-extruded alloys prepared with uneven size were treated at different heat treatment processes to understand the inhomogeneity of microstructures and mechanical properties.The results indicate that the heat treatment process can improve the inhomogeneity of microstructures and mechanical properties of as-extruded alloys.After heat treatment,both the changes of Al2 Ca particles in number,size,distribution and the Mg axial-ratio reduction are responsible for the inhomogeneity improvement of microstructure and mechanical properties of as-extruded alloys.关键词：Spraying Deposition;Magnesium Alloy;Heat Treatment;Inhomogeneity
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发布时间：2023-12-18 - 摘要：Influences of different power and time on the wettability and tensile strength of the carbon fibre（Cf）which was modified by the air cold plasma were investigated.The electroless plating processes before and after different Cfmodified by air cold plasma were analyzed.The wettability of Cftreated before and after the air cold plasma was examined by 0.5% methylene blue solution.The results show that the level of etching and the specific surface area on Cfsurface are increased with the increase of processing power and time,however,the wettability is firstly increased and then decreased.The tensile strength of Cfcompound samples before and after the air cold plasma was measured according to the GB/T3362-2005 standard.The results show that with 200 Wfor 2min,air cold plasma treatment for the carbon fibre exhibits desirable.Through SEM,EDS and XRD analysis,the continuous and rich copper is deposized on the surface of modified Cfby electroless plating at 70℃for 20 min.关键词：Plasma;Modification;Carbon Fiber;Copper-plated
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发布时间：2023-12-18 - 摘要：Experimental equipment of secondary cooling gas-atomizer heating transfer for continuous casting was designed to realize cooling process simulation of continuous casting steel slab.The surface temperature,heat transfer coefficient and heat flux were calculated by an inverse calculation method established during a one-dimensional unsteady heat conduction process through measuring real-time temperature in steel slabs with thermal-coupler.The experimental results show that the surface heat flux during air-atomizer cooling process exhibits fluctuation change with the different time and the trend on length and width direction of the jet.The average convective heat transfer coefficient on the surface reaches2 454.6W/（m2·K）.关键词：Continuous Casting;Secondary Cooling;Air-Atomizer Cooling;Heat Transfer
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发布时间：2023-12-18 - 摘要：Solidified structure of Mg97Y2Cu1 alloy reinforced by long period ordered structure was investigated comparatively without treatment,with DC magnetic field（DCMF）treatment,pulsed magnetic field（PMF）treatment and compound treatment of DCMF with PMF.Grain size of the alloy at different pulsed magnetic field strength,pulse frequency,mold temperature and pouring temperature under the conditions of compound magnetic field was investigated.The results show that solidified structure of the alloy can be improved significantly by compound magnetic field.The improvement effect by compound treatment is more efficient than by DCMF treatment or PMF treatment.Primary phase of the alloy is changed into fine equiaxed grains or rosette crystals with more uniform and continuous distribution of second phase and increases of its volume fraction.When pulsed magnetic field strength is at 00.25 T or pulse frequency is at 110Hz,grain size of the alloy is decreased gradually with the increase of pulsed magnetic field strength or pulse frequency.When mold temperature is at 20600℃,with the increase of mold temperature,grain size of the alloy is decreased firstly and then increased.When pouring temperature is at 650750℃,with the increase of pouring temperature,grain size of the alloy is increased firstly and then decreased.关键词：Compound Magnetic Field;Mg97Y2Cu1Alloy;Long Period Ordered Structure;Solidified Structure
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发布时间：2023-12-18 - 摘要：Effects of minor Y and Sc on microstructures and mechanical properties of A356 alloy were investigated by OM（optical microscopy）,SEM（scanning electron microscopy）,XRD（X-ray diffraction）and tensile testing.The results show that both Y and Sc with 0.3%addition not only obviously reduce secondary dendrite arm spacing and refine primaryα-Al phase,but also transform the morphology of eutectic silicon partly from lamellar to fibre structure.However,modification effects on eutectic silicon are weaken to strontium.With equal addition amount of Y and Sc in A356 alloy,the modification effect of Y is superior Sc,however,refining effects of Y is lower than Sc.Effects of Y on improving the as-cast mechanical properties of A356 alloy is accordingly greater than Sc.关键词：A356Alloy;Y and Sc;Refinement and Modification;Microstructures
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发布时间：2023-12-18 - 摘要：The rapidly solidified Mg-4.8Zn-0.6Yribbons were prepared by melt-spun rapidly solidification with a single roller.The microstructures,phase constituent,micro-segregation and solidification characteristics of the alloy were investigated by SEM,TEM,XRD,EDX and DTA.The results show that the microstructure of rapidly solidified Mg-4.8Zn-0.6Yribbons consists ofα-Mg supersaturation solid solution,quasicrystals I（Mg3YZn6）and X（Mg12YZn）,and the fine equiaxed grain size in free surface reaches 13μm.It indicates that the cooling rate of rapid solidification about 4.60×1061.04×107 K·s-1 meets the cooling conditions of quasicrystalline phase precipitation.Magnesium,zinc and yttrium are distributed uniformly along thickness cross section of the rapidly solidified ribbon,however,there exists a small amount of microsegregation in the thickness of ribbons and within the grains as well.Microsegregation is attributed to the difference from the copper substrate to the free surface of ribbons and the solidification velocity rate of solute transport and lattice structure,and for the segregation trend of three elements,Zn is the largest,and then Y,Mg.关键词：Rapid Solidification Ribbons;Mg-4.8Zn-0.6YAlloys;Microstructures;Microsegregation
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发布时间：2023-12-18 - 摘要：The microstructure and mechanical properties of extruded and aged state EW75-0.7Al alloy were investigated by OM,SEM,hardness and tensile testing methods.The results reveal that grain in the extruded alloy is refined obviously,and mechanical properties,such as tensile strength,yield strength and elongation,are improved significantly at room temperature to 330 MPa,242MPa and 11%,respectively.By observing T5 aging treatment of EW75-0.7Al alloy,the optimal T5 peak aging parameter is at 225℃for 12 h.The T5peak-aged alloy exhibits the better tensile strength than extruded alloy at room temperature,increased by approximately 100 MPa.At 200℃,the mechanical properties are decreased slightly,however,they are deteriorated significantly at 250℃.By analyzing the fracture mode under 250℃,it is found that grain boundary strength of EW75-0.7Al alloy is weakened greatly,and the bonding strength between precipitation and matrix are also decreased,which are responsible for the decrease of the strength of the alloy at 250℃.关键词：Rare Earth Magnesium Alloy;Extrusion;Microstructure Analysis;Mechanical Properties
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发布时间：2023-12-18 - 摘要：Effects of MgCa alloy on microstructure,composition constituent and mechanical properties,cutting behavior of the lead brass were investigated by optical microscope（OM）,scanning electron microscope（SEM）,EDS,XRD and FactSage calculation as well as elastic calculation.The results show that with the increase of MgCa alloy addition,lead brass is still composed ofαandβtwo-phase structures with uniform distribution,however,theαphase content is reduced andβphase content is increased.In addition,theαphase is tended to be spherical.With MgCa alloy addition,Ca2 Pb and Mg2 Pb compounds with stable and high melting point can be generated with lead,decreasing the harm of lead.The Ca2 Pb and Mg2 Pb are brittle and Cu2 Mg exhibits plastic,leading to hardness increase and conductivity decrease gradually,however,effects on cutting behavior of the alloy scraps can be ignored.关键词：Lead Brass;MgCa Alloy;Metallic Compound;Properties
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发布时间：2023-12-18 - 摘要：Numerical simulation of filling and solidification process for the magnesium alloy notebook shell was carried out with the help of AnyCasting according to magnesium alloy solidification characteristics.The flow of liquid metal in the die casting process,and the origination of entrapped gas and shrinkage in the shell were analyzed.Results indicate that the backflow in the filling process is improved to some extent,however,the decrease of shrinkage porosity（holes）can not be observed by decreasing temperature and increasing the fast injection speed,However,the shrinkage porosity（holes）can be significantly improved by applying pressure on die castings to promote the metal solidification.关键词：Thin-Wall;Magnesium Alloy;Die Casting;Numerical Simulation;Optimization
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发布时间：2023-12-18 - 摘要：The alloy phase diagram and thermophysical properties of the modified medium manganese steel were analyzed with the Jmatpro software to determine the initial pouring temperature.According to the material and shape of the liner,a inclined pouring withwaved chill casting process was designed.The mathematical,geometry and finite element temperature field models of the jaw crusher liner in the inclined gravity sand casting during solidification process were established.By finite element simulation software ProCAST,the temperature field of the casting process was simulated and calculated.Results show that,during the eutectic transition process,the released heat cannot be dissipated out smoothly,resulting in the flattened cooling temperature curve gradually.By comparing the speed of five key points on the cooling curve,it is found that with inclined casting with cold iron at the central location,the central position of component is solidified firstly,and then the both sides solidified,realizing sequential solidification,and shrinkage porosity（holes）are eliminated.关键词：Medium Manganese Steel;Finite Element Model;Temperature Field;ProCAST
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发布时间：2023-12-18 - 摘要：A finite element model for blast furnace cast copper stave was established,and the initial and boundary conditions of temperature field simulation were determined.By means of finite element software ANSYS Workbench,the steady heat transfer analysis of blast furnace cast copper stave was carried out.The results show that in severe case of the without slag-film,cast copper stave has the highest temperature in the site of inserting firebricks,reaching 956.23℃.The maximum temperature of cast copper stave body and copper tubes enbeded in stave are 254.3℃and 87.02℃,respectively.The maximum heat flux density of cast copper stave is 17.507×105 W/m2,meeting the needs of working conditions.When the fusing rate reaches 80%between the stave body and the bedded copper tubes,it can also be used normally,while cooling performance is deteriorated slightly.关键词：Blast Furnace Cast Copper Stave;ANSYS Workbench;Flux Density;Temperature Field
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发布时间：2023-12-18 - 摘要：The filling process and solidification process of die casting rear cover were simulated by the MAGMA simulation software.The simulated results show that with pouring temperature at 670 ℃,preheating mould temperature at 180℃,injection speed at 3.5m/s,pressurization at 80 MPa,the die casting rear cover exhibits desirable quality.Through experiment verification,the practical product is well agreement with the simulated ones.关键词：Aluminum Alloy;Rear Cover;Die Casting;Numerical Simulation
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发布时间：2023-12-18 - 摘要：A mathematical model was proposed to calculate the mold cavity pressure,and the factors influencing the cavity pressure were analyzed.It is pointed out that with the increase of the vent area,the exhaust ability is gradually improved,and with the increase of leakage area,the final balance pressure is increased.With the increase of volume of cavity,the pressure of cavity is declined slowly,and the decrement speed of the cavity pressure is slowed.With the increase of tank volume and decrease of pressure,vacuum-drawing efficiency is improved.关键词：Cavity Exhaustion;Mathematical Model;Cavity Pressure
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发布时间：2023-12-18 - 摘要：Aluminium alloy wheel for truck was manufactured by squeezing casting,and the microstructure and mechanical properties of the wheel produced were analyzed.The results show that mechanical properties of the aluminum alloy wheel produced by squeezing casting are superior obviously to those of low pressure casting ones.The tensile strength and yield strength of the squeezed casting wheel are increased by more than 10%,compared with those of the low pressure casting wheel.However microstructure and properties exhibit heterogeneity at varied position,where inner and outer wheel rim has compact and fine microstructure corresponding to a higher mechanical properties while wheel spoke has coarse structure resulted from a low cooling velocity corresponding to a lower mechanical properties.The squeezed casting wheel meets the requirement of truck through bending,radial fatigue and impacting testing.关键词：Squeezing Casting;Aluminum Alloy;Wheel
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发布时间：2023-12-18 - 摘要：Some factors on effects of desquamation of die castings were analyzed,such as alloy melt,operation procedure,mold temperature,pouring temperature,component structure,coating,mould,gating system,fast injection velocity and staring position,slow injection velocity,injection pressure,press.Based on practical conditions,the countermeasures of eliminating desquamation were presented.关键词：Desquamation of Die Castings;Die Casting;Die Casting Die
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发布时间：2023-12-18 - 摘要：Low pressure casting aluminum alloy gear box housing for eight-axial electro-locomotive was conducted.Resin sand mould was adopted with precoated sand core.The upper and bottom half boxes use horizontal pouring design with box middle line as parting face.The trial-product gear box housing meets the design requirement in mechanical properties,inner quality and surface quality,available for the working requirement of gear box housing for eight-axial electro-locomotive.关键词：Locomotive;Aluminum Alloy;Gear Box Housing;Low Pressure Casting
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发布时间：2023-12-18 - 摘要：Pouring system and processing parameters were designed for die casting complicated magnesium alloy housings.The solidification process of die casting magnesium alloy was simulated with the help of AnyCasting software to forecast macro porosity probability in the die casting.Through adding numbers and size of overflow at thick location,decreasing pouring temperature and mould temperature,effects of eliminating shrinkage porosity（holes）exhibit weak as a result of low feeding ability.However,through setting ingate at the thick location to modify solidification sequence and increase feeding ability of thick location,defects such as shrinkage porosities（holes）can be eliminated effectively.关键词：Shrinkage Holes;Magnesium Alloy;Die Casting;AnyCasting Software
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发布时间：2023-12-18 - 摘要：The temperature field and stress field of die-casting die for automotive transmission housing were analyzed by the ProCAST software.In order to improve the uniformity of temperature field distribution in die cavity,cooling water passages of die were optimized based on the analysis of die-casting process and heat balance process.The temperature field on the cavity surface of automotive transmission housing was recorded by infrared temperature imager.The results show that the temperature field in the optimized die and the automotive transmission housing have a more uniform temperature distribution,and the error rate between experiment and the FEM results is less than 9%.关键词：Automotive Transmission Housing;Die-casting Die;Cooling Water Passage;Thermal Field
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发布时间：2023-12-18 - 摘要：The feasibility of barium zirconate（BaZrO3）using as the mould material for investment casting titanium alloy was evaluated.The face coating of BaZrO3-based mould shell was prepared with homemade BaZrO3 particles used as refractory and yttrium sol used as binder.Effects of S/L ratio and grain gradation on properties of slurry including the viscosity,the suspension behavior were investigated.The baking process was finally determined through analyzing bending strength and the fracture morphology of mould shell after baking at different temperatures and hours.The results show that desirable properties including viscosity and suspension behavior of slurry can be realized with S/L ratio of 3.0and the content of fine powder of 50%60%.The mould shell has appropriate bending strength after baking for4 hours at 1 500℃.The investment casting experiment of TiNi alloy was carried out in BaZrO3-based mould shell.The poor wettability and thin reaction layer between the mould shell and metal melt indicates that BaZrO3 is a desirable material for investment casting titanium alloy.关键词：Investment Casting;Barium Zirconate;Titanium Alloy;Interfacial Compatibility
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发布时间：2023-12-18 - 摘要：<正>锡青铜除了具有良好的耐磨性外,还具有良好的耐腐蚀性能,无论是在大气、蒸气、淡水或海水及碱性水溶液中都具有很高的化学稳定性。因此,锡青铜广泛用于在海水中工作压力不高的船用阀门和管件等。1铸造锡青铜阀门工艺难点锡青铜结晶温度范围很宽,呈糊状凝固,流动性很差,补缩困难,容易产生枝晶偏析和分散的缩孔（缩松）,不易得到组织致密的铸件,耐水压性能不好,有时在低压下铸件也会发生渗漏现象[1]。
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发布时间：2023-12-18 - 摘要：Columnar crystal CuAlBe shape memory alloy tube by 0.4%Be was produced by heated mold continuous casting process,then the tube was cut into segments,after solution treatment and diameter expansion,the pipe joint was completed.With continuous casting speed at 80mm/min,cooling distance at 10 mm,pressure head at 20 mm and the mould temperature at 1 050℃,the continuous casting memory alloy tube exhibits very stable with desirable surface quality and size precision.The maximal expanding ratio of the coupler can reach 10.20%,and the shape recovery rate can reach 92.86%.When nominal expanding ratio is 7.55%,the Asand Aftemperature are increased,and Msand Mftemperature are decreased after diameter expansion.In addition,transformation hysteresis temperature range of the alloy is increased from 40℃before diameter expansion to 70℃.关键词：Heated Mold Continuous Casting;Shape Memory Alloy;Pipe Joint;CuAlBe Alloy
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发布时间：2023-12-18 - 摘要：Defects in aluminum alloy housing for a special type turbo-charger compressor were analyzed,and possible origination was described.Through checking quality of aluminum melt combined with MAGMA simulation,SEDEX ceramic foam filter instead of original glass fiber improving filling process was described.Through practical production verification,the waste product is decreased greatly,and product cost is effectively reduced.关键词：Turbo-Charger;Compressor;Process Improvement
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发布时间：2023-12-18 - 摘要：Deformation of EPC differential gear housing was analyzed,such as adding tie bar,selecting coating,modifying moulding way,vacuum-drawing and adjusting vibration tool.Origination of deformation was described,and countermeasures were presented.关键词：EPC;Deformation;Housing
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发布时间：2023-12-18 - 摘要：Effects of different pulse voltage,frequency and mold preheating temperature on solidification microstructure of SiCP/AZ91 Dcomposites were investigated.The results show that the distribution of SiC particle in solidification structures of alloy can be improved effectively by controlling parameters of pulsed magnetic field and mold temperature.With the increase of pulse voltage in the range of 0200V,SiC particles are uniformly distributed increasingly,however,the voltage reaches 250 V,SiC particles exhibits agglomeration tendency.With the increase of pulse frequency in the range of 05Hz,SiC particles is uniformly distributes gradually.With the increase of mold temperature in the range of room temperature600 ℃,SiC particles are evenly distributed gradually under the conditions of magnetic field treatment.关键词：SiCP/AZ91DComposites;Pulsed Magnetic Field;Solidification Structure
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发布时间：2023-12-18 - 摘要：Effects of extra Si addition on microstructure and mechanical properties of in-situ 15%Mg2Si/Al composites have been investigated.The results indicate that the size of primary Mg2 Si particles is firstly increased and then decreased with increasing in extra Si content.With extra Si content of 5%,the maximum size of Mg2 Si reaches 41μm,while with the extra Si content of 10%,size of primary Si phase is decreased to about 24μm.In addition,the amount of Al-Mg2 Si binary eutectic structure is gradually reduced to even be disappeared with the extra Si content increased from 0to 10%.Furthermore,with the extra Si content increase,the irregularα-A phase becomes spherical gradually,and sphericalα-Al phase can be formed when the content of extra Si reaches 8%.The tensile strength and elongation of the in-situ 15%Mg2Si/Al composites are improved from 172 MPa to 200 MPa and from 1.4%to 3.1%,respectively,with the extra Si content increased from 0%to 10%.关键词：Al Matrix Composites;Mg2Si;Microstructure;Mechanical Properties
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发布时间：2023-12-18 - 摘要：The DZ4,DZ22 directional alloy blades with different service life were analyzed.The results show that different location of the blade has different recrystallization thickness due to the processing technology difference,and the growth rate of recrystallization grain size along the dendric axis is faster than along the interdendritic.Interdendritic recrystallization structure exhibits the cellular structure,which isn’t further grown in the process of the use of the blade.However,grain boundary is wided with granular carbide precipitation.关键词：Directional Solidification Blade;Plastic Deformation;Recrystallization
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发布时间：2023-12-18 - 摘要：Al-Mg-Zr alloys containing La elements were prepared by cast metallurgy.Effects of 0.2% La additions on microstructure and mechanical properties of Al-5Mg-0.2Zr alloy were investigated by tensile testing,optical microscopy（OM）,scanning electron microscopy（SEM）,energy spectrum（EDS）and X-ray diffraction（XRD）.The results show that the addition of 0.2%La can positively refine the grain size of Al-5Mg-0.2Zr alloy and effectively avoid the coarsening and segregation of Al3 Zr in the matrix,and the average grain size of the alloy is decreased to only 68μm.Meanwhile,the tensile strength,yield strength and elongation are increased to 165.5MPa、112.5MPa and 7.5%,respectively.关键词：Al-5Mg-0.2Zr Alloy;Microstructure;Mechanical Properties;Grain Size
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发布时间：2023-12-18 - 摘要：The leakage of GW4D20 aluminum engine cylinder head was analyzed by air tightness testing,and the microstructure and defect at the leakage position were analyzed by optical microscopy and macroanalysis.The results show that leakage of cylinder head is attributed to the occurrence of shrinkage porosity（holes）.The volatile gas out of sand core during casting process and oxide inclusion in liquid aluminum can enhance shrinkage porosities（holes）tendency in the cylinder head castings.Based on the analysis,the corresponding measures for casting defects caused were given,effectively controlling generation of the shrinkage porosities（holes）and oxide film,reducing the leakage possibility of the cylinder head.关键词：Gravity Casting;Aluminum Alloy Cylinder Head;Leakage;Shrinkage Porosities（Holes）;Oxide Inclusions
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发布时间：2023-12-18 - 摘要：Influences of different heat treatment process on mechanical properties and microstructures of the Ti55531 titanium alloy were investigated by the orthogonal testing with three factors to three level.The results reveal that the influencing orders on microstructure and mechanical properties of the alloy are presented as follows:solid solution temperature,ageing temperature and ageing time.With increasing in solid solution temperature,primary phase is decreased greatly with desirable equaixed feature and uniform distribution,meanwhile,tensile strength is increased with decreasing in elongation.With the increase of ageing temperature,sub-αphase is increased and grown,and microstructure is transformed into dual-phase structure,resulting in the decrease of tensile strength and the increase of elongation.With solid solution treatment at 820℃for 10 hand air cooling,and then aging at 580℃for 10 hand air cooling,the tensile strength and elongation of the Ti alloy reach 1 370 MPa and 8.5%,respectively.关键词：Ti55531Titanium Alloy;Heat Treatment;Microstructure;Mechanical Properties
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发布时间：2023-12-18 - 摘要：Microstructure of a new Al-Cu-Mn high strength aluminum alloy was investigated by metallurgical microscope,transmission electron microscope（TEM）,scanning electron microscopy（SEM）,electron diffraction and energy spectrum（EDS）,XRD（X-ray diffraction）.The results reveal thatθ′precipitate phase is dominant in the alloy with someθdisperoids.The dispersedly fine T-Al12Mn2 Cu phase can be observed in the microstructure,playing a role in dispersed strengthening.In addition,Cd particle with approximately 2nm in size can be observed in the matrix phase to promote the nucleation and growth of strengthening phase.Microstructure of the alloy is composed of equaixed crystal with 3080μm,meanwhile,texture is absent apparently.EDS analysis reveals that there exists composition segregation,and RE element is mainly segregated at the grain boundary.PFZ zone can be observed in the alloy,and fine needle N phase withμm level in size is precipitated from the grain boundary,which can decrease the elongation of the alloy.So the quantity of the brittle phase should be decreased as possible.关键词：High Strength Aluminum Alloy;Aging Precipitates;Properties
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发布时间：2023-12-18 - 摘要：Microstructure and mechanical properties as well as friction and wear behavior of squeezing casting ZA27 alloy were analyzed comparatively with those of permanent mould casting ones.The results reveal that squeeze casting process can decrease or eliminate shrinkage porosity（holes）,refine microstructure and improve the shape and distribution of copper-richεphase,which are responsible for the improvement of the mechanical properties,such as tensile strength,elongation and wear behavior.关键词：Squeeze Casting;ZA27Alloy;Mechanical Properties;Wear Resistance
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发布时间：2023-12-18 - 摘要：Several commonly used copper alloys for art statue products were described.According to the features and special performance requirements of art statue products,casting properties,processing performance,corrosion resistance,weldability and surface coloring of those copper alloys were discussed,respectively,and the limit of the application,deficiencies and improved method in art statue products were expounded.关键词：Art Product Casting;Copper Alloy;Casting Properties;Processing Performance
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发布时间：2023-12-18 - 摘要：<正>20141001 Mu P,Nadot Y,Nadot-Martin C,et al.铸造缺陷对AS7G06-T6铝合金疲劳行为的影响.International Journal of Fatigue,2014,63:97-109.合金的疲劳性能与铸造工艺密切相关,铸造工艺过程中产生的缺陷是影响合金疲劳性能的主因。以T6热处理态AS7G06铝合金为研究对象,通过建立基于Eshelby理论的分析子模型,计算缺陷周围的应力分布,系统研究铸造缺陷对合金疲劳行为的影响规律。其中,疲劳应力比分别为-1和0.1,铸造缺
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发布时间：2023-12-18 - 摘要：<正>"2014年第十届迈格码大中华区用户大会暨迈格码（苏州）软件科技有限公司成立五周年庆典"将于11月2526日在苏州独墅湖世尊酒店举行。用户大会上,与会嘉宾将可领略最新最先进的MAGMA 5铸造工艺模拟知识。此次会议的亮点之一是介绍
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发布时间：2023-12-18 - 摘要：<正>新大洲本田摩托车有限公司（简称"新大洲本田"）与江苏太仓经济开发区管委会签署《战略合作框架协议》。新大洲本田拟在太仓经济开发区建设摩托车工厂及相关项目,项目总投资为7.2亿元人民币。新工厂选址在太仓市东仓路和广州路附近,距离现在的上海工厂约40km,占地面积400亩（约26.6万m2）。该项目计划于
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发布时间：2023-12-18 - 摘要：<正>经过一年多建设,全球著名的笔记本电脑机壳制造商巨腾国际控股有限公司（"巨腾国际"）镁铝合金机壳重庆基地于2014年9月26日正式投产。重庆生产的第一块镁合金笔记本电脑机壳也将随之诞生。
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发布时间：2023-12-18 - 摘要：<正>南京云海特种金属股份有限公司（简称"云海金属"）董事会秘书吴剑飞表示,该公司已经基本打造完成从原材矿石开始一直到产品的深加工压力铸造一条完整的镁产业链,未来将着重于研发镁合金新品种、镁合金的应用及生产技术的改进,并致力于镁合金的压铸深加工,生产适用于汽车、3C电子及电动工具等的压铸件。
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发布时间：2023-12-18 - 摘要：<正>2014中国铸造活动周将于2014年10月2528日在河南郑州举行,预计将有来自国内外专家、企业家约600余人出席活动。起始于2000年的中国铸造活动周是专家、学者和铸造工作者交流学术观点,传播先进技术、实用成果和信息,获取解决管理、生产、技术等关键性的问题良策,了解
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发布时间：2023-12-18 - 摘要：<正>法士特汽车传动（泰国）有限公司（简称"泰国法士特"）基建项目暨厂房建设日前通过竣工验收。至此,为其一年的法士特汽车传动有限公司一期基建项目顺利完成,为工厂如期开工投产奠定基础。陕西法士特汽车传动集团有限责任公司（"法士特集团"）副总经理马旭耀出席了项目验收
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发布时间：2023-12-18 - 摘要：<正>东芝机械美国公司开设其在墨西哥的首家营销服务中心。将为墨西哥全国范围内的压铸机及注塑机客户,提供本地化的服务及产品供应。"这对我们来说是一个蓬勃发展的市场,"东芝机械美
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发布时间：2023-12-18 - 摘要：<正>根据中国铸造协会与苏州市压铸技术协会达成的战略合作协议,由苏州市压铸技术协会连续主办了七届的"苏州国际压铸工业展览会"自2015年起将整体并入由中国铸造协会主办的"中国国际压铸工业展览会",强强联合,共同打造国际一流压铸展览会。
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发布时间：2023-12-18 - 摘要：<正>宜安科技目前表示,公司医用镁合金项目目前正在参照国外临床成功的标准修改和完善公司制订的相关标准,预计顺利的情况下今年年底至明年年初进行临床实验,临床时间需要1218个月。宜安科技的主营业务为铝合金,镁合金等轻合金精密压铸件的研究,开发,生产和销售。
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发布时间：2023-12-18 - 摘要：<正>提及"布勒",业者首先会想到"布勒压铸机"。事实上,布勒公司拥有食品加工、粮食加工、先进材料三大事业部,压铸机产品隶属于先进材料事业部。2014年9月18日,作为国内粮食机械龙头的无锡布勒机械制造有限公司迎来了二十周年庆典,来自布勒全球的员工、客户代表以及合作
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发布时间：2023-12-18 - 摘要：<正>虽然上半年经济下行压力加大,但随着国家稳增长的各项政策实施,2014年企业的经营环境将进一步改善,预计中国工程机械行业运行将企稳回升,2014年全行业销售收入可增长约8%。从中国工程机械工业协会了解到,2014年前7月中国工程机械主要产品的销量同比增长0.88%。总体而言,目前中国工程机械行业发展的态势是稳健的,尽管其总体销售量和营业收入呈负增长态势,但这绝不是行业在走下坡路,而是正经历从快速增
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发布时间：2023-12-18 - 摘要：<正>新疆昌吉市汽车铝合金精密铸件生产线项目公开招商。项目总投资2.5亿元人民币,在位于昌吉国家高新技术产业开发区,建成年产50万件汽车用铝合金精密铸件。随着我国汽车工业的迅猛发展,铝合金汽车配件市场的增长空间很大。目前我国汽车用铝合金铸件的年需求量
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发布时间：2023-12-18 - 摘要：<正>我国熔模铸造模具不但能把国内顶级的客户吸引过来,而且吸引了北美通用、美国克莱斯勒等世界级汽车巨头眼光。随着模具制造技术的不断提高,工艺的不断完善,加上我国模具出口到欧洲的汽车油底盘压铸模价格优势强,虽然近几年全球经济不景气,但预计未来国内的熔模铸造模具出口量还将快速增长。
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发布时间：2023-12-18 - 摘要：<正>据美国密西根州大急流市当地商会The Right Place报告称,来自中国的中信集团全资子公司中信戴卡股份公司拟在美国密歇根州格林维尔（Greenville）市投资1.4亿美元建设一座年产300万只铝合金车轮的工厂。
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发布时间：2023-12-18 - 摘要：<正>内蒙古锡林郭勒盟西乌旗招商局2014年9月2日启动年产2万吨压铸锌合金项目,总投资预计为1.2亿元,新建一条压铸锌合金生产线,主要生产铝-铜-镁铸造锌基合金锭。锡林郭勒矿产资源丰富,已发现矿种80余种,探明储量的有30余种,
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发布时间：2023-12-18 - 摘要：<正>据密尔沃基商务时报报道,坐落于威斯康星州斯特蒂文特的美国金属技术有限公司（AMT）正式完成收购总部位于俄亥俄州Kotobuki-Reliable的雅森公司。这家压铸件制造商主要生产精密铝合金结构部件。
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发布时间：2023-12-18 - 摘要：<正>内蒙古中钰镁业有限公司镁合金轮毂项目技术合作签约仪式于2014年9月18日在乌海市举行,标志着中钰镁合金锻造汽车轮毂项目正式落户乌海。根据协议,内蒙古中钰镁业有限公司将长期享有镁合金锻造汽车轮毂生产技术及专利使用权。
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发布时间：2023-12-18 - 摘要：<正>2014年9月海兴集团压铸镁合金项目正式投产。海兴集团从2013年底立项,到投建,再到投产,仅用了8个多月的时间。海兴集团董事长梁焕操先生看到镁及镁合金的巨大市场潜力,毅然于2013年底斥巨资在其子公司海兴（清远）金属有限公司投建镁合金生产线。
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发布时间：2023-12-18
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