最新刊期
卷 34 ， 期 12 ， 2014
- 摘要：Influences of electrolytic temperature,sample shape,insulation of the non-contacted zone of the sample or not on electrolytic-polishing quality of the magnesium alloy EBSD sample were analyzed.The results show that orientation indexing rate can be directly reflected by the current,and effects of the three factors on the orientation indexing rate can be attributed to effect on the current,where electrolytic temperature plays a key role in orientation indexing rate.By comparison with the quality of Kikuchi bands of a series of electrolytic-polished magnesium alloys samples,an optimal parameter combination of the voltage,electrolytic temperature,electrolysis time and the current was presented,and under the given conditions,the orientation indexing rate can be reached above 94%.In addition,after electrolyticpolishing,the block sample has a higher orientation indexing rate than sheet tension sample,and insulating treatment for the non-contacted zone of the sample can obtain the higher orientation indexing rate.The above mentioned electrolytic parameters were suitable for electrolytic-polishing other kinds of magnesium alloys.关键词：AZ31Magnesium Alloy;Electrolytic-polish;EBSD;Orientation Indexing Rate
- 2
- |
- 1126
- |
- 1
发布时间：2023-12-18 - 摘要：The microstructure and mechanical properties of Mg-Gd-Y-Nd-Zr heat-resistant magnesium alloy were analyzed comparatively after deformation and T5 or T6treatment.During thermoplastic deformation process,dynamic recrystallization and dynamic precipitation can be taken place simultaneously.The dynamic precipitation can reduce the recrystallization nucleation driving force in the grain to prevent from occurrence of dynamic recrystallization partially.The comprehensive mechanical properties of the heat-resistant magnesium alloy with T5treatment（solid solution at 530 ℃ for 4h）are superior greatly to those of ones with T6treatment（solid solution at 530℃for 4h+aging treatment at 225℃for 16h）。Compared with T6 treatment,after T5 heat treatment,the tensile strength of the alloy is increased to 359.3 MPa,increased by approximately 48.5%,and elongation is increasing from 5.17%to6.5%.After peak ageing treatment,the main precipitation isβ′phase,which exhibits obvious pinning effect to grain boundary of the alloy,inhibiting the grain growth in long-time ageing condition.At the same time,secondary phase strengthening effects of precipitate phase take strength increase significantly.关键词：Mg-Gd-Y-Nd-Zr Magnesium Alloys;Peak Ageing Treatment;Dynamic Precipitation;Plastic Deformation
- 2
- |
- 349
- |
- 8
发布时间：2023-12-18 - 摘要：Effects of heat treatment and rare earth Ce on the microstructures and properties of AZ91 D magnesium alloy were investigated.The results indicate that the rod-like Al4 Ce compounds are generated in AZ91 D magnesium alloy with Ce addition,and net-likeβ-Mg17Al12 is dispersedly distributed into the alloy.The mechanical properties and corrosion resistance of the magnesium alloy are improved with increasing in rare earth Ce.The morphology change of the rod-like compounds Al4 Ce is absent after T4 or T6heat treatment.Compared with those of as cast AZ91 D magnesium alloy,the mechanical properties and corrosion resistance of AZ91 Dcontaining Ce alloy after T6 heat treatment are improved significantly.关键词：Rare Earth Ce;Magnesium Alloy;Microstructure;Mechanical Properties;Corrosion Behavior
- 2
- |
- 184
- |
- 1
发布时间：2023-12-18 - 摘要：A new electroslag furnace with mould rotation was designed,and effects of mould rotation velocity on the compact density of electroslag ingot were analyzed.Experiment results show that ESR ingot can become more compact from 77%to 94% and more uniform distribution with the mould of rotation velocity from 0to 28r/min.However,with rotation velocity to 35r/min,the compact density is deteriorated to 91%,which reveals that the solidification structure can be improved through appropriate mould motion.关键词：Electroslag Remelting;Mould Rotation;Solidification;Relative Density;OPA
- 2
- |
- 111
- |
- 3
发布时间：2023-12-18 - 摘要：The intergranular corrosion resistance of 316 Lstainless steel with different grain sizes through aging treatment at 650 ℃for 2496hwas tested by immersing the specimens into corrosive solution.The morphology and microstructure of specimens after corrosion testing were analyzed by optical microscopy.The results show that,the weight loss of the specimens with a larger grain size is lower than that of ones with a smaller grain sizes.The intergranular corrosion resistance is decreased during aging process,however,it is increased after aging for longer than 48 h.The sensitization features are independent of grain size.Based on the experimental results,the specimens began to desensitization after aging at 650 ℃for 48 h.关键词：316LStainless Steel;Grain Sizes;Sensitization;Intergranular Corrosion;Grain Boundary
- 2
- |
- 279
- |
- 2
发布时间：2023-12-18 - 摘要：Based on the purification theory of zone refining,tellurium was purified for 16 zone passes by self-prepared zone refining furnace.The results show that under protection of high pure nitrogen,with the output power of induction coil of 13.0,12.5and 11.5kW,respectively,and the zone movable speed of 1.52.0mm·min-1 as well as zone length of 2550mm,the impurities content is reduced from1.41×10-2%to 2.8×10-4%.The contents of eleven kinds of impurities are reduced sharply,and compared with each original content,it can be decreased by 3orders of magnitude at most and 1order at least,respectively.Finally,the purity of tellurium reaches from 4Nto 6N.关键词：Zone Refining;High Purity Tellurium;Purification
- 2
- |
- 151
- |
- 1
发布时间：2023-12-18 - 摘要：The simulations of filling and solidification processes for die-casting aluminum alloy cover were conducted based on the ProCAST software.The temperature distribution and filling state in solidification and filling process were presented.Then the possible die surface failure region was predicted based on the analyzing thermal stress field of the mould.The predicted failure regions were consistent with the practical ones.关键词：Die Casting CAE;Prediction of Die Surface Failure Region;ProCAST
- 3
- |
- 135
- |
- 2
发布时间：2023-12-18 - 摘要：The dynamic radial fatigue test of aluminum alloy wheel for motorcycle was simulated by the ANSYS software to obtain the stress distribution of the risk points in wheel structure.The wheel radial fatigue life is predicted to 5.91 million cycles by the Nominal Stress Approach combined with the properties of aluminum alloy.The method provided a certain reference for wheel design and development.关键词：Aluminum Alloy Wheel;Radial;Simulation Analysis;Fatigue Life
- 2
- |
- 271
- |
- 1
发布时间：2023-12-18 - 摘要：With the help of simulating filling and solidification process,die casting process for the gearbox cover was optimized by MAGMA software and orthogonal test.Through simulation to predict possible defects type,size,location and time in practical production castings,process improvement program was conducted to determine the optimized process.During the process of the experimental trial,the casting defects was detected by using X-ray imaging system.The results show that MAGMA software can simulate more accurately filling and solidification process as well as predicting the probability of casting defects.关键词：Die Casting;Magma;Numerical Simulation;Casting Defects;Process Optimization
- 2
- |
- 158
- |
- 1
发布时间：2023-12-18 - 摘要：Early crack of die casting die is mainly dependent on composition segregation,adequate quenching pressure,slow cooling rate and small section angle.Through solid solution,quenching and high temperature tempering,grading and isothermal quenching,tempering cooling methods,the toughness and service life of the mould were improved.During heating process,overheating can induce martensite acupuncture and the coarse grain,so that the slide fracture exhibited quasi-cleavage brittle fracture,so heat treatment process operation and control of sliding block should be strictly implemented and inspected.Through steam treatment,ion nitriding,PVD,CVD surface coating,boronizing,spraying lubricant,the die soldering and melting loss failure can be eliminated effectively.关键词：Die Casting Die;Failure;Quenching;Tempering;Toughness;Heat Treatment
- 3
- |
- 121
- |
- 1
发布时间：2023-12-18 - 摘要：Filling and solidification of different squeezing casting schemes were simulated with the help of the Flow-3Dfor thin-walled high strength-ductility piston for light-loading power machinery to determine the optimized parameters and mould structure.Based on the Flow-3Danalysis,the mould structure was optimized.The practical production verified that the optimized design is feasible,meeting the piston requirements.关键词：Thin-walled High Strength-ductility;FLOW-3D;Numerical Simulation;Squeezing Casting;Mould
- 2
- |
- 107
- |
- 0
发布时间：2023-12-18 - 摘要：The structural characteristics and process requirements of a new gearbox housing were described,and filling process of the magnesium alloy gearbox cover was simulated and optimized by the CAE technology.By modifying the casting parting face,adjusting total cross-sectional area of the gate,the number of gates and the gate cross-sectional area of the size ratio,as well as reasonable arrangements for the position of overflow system based on the result analysis,defects such as gas-entrappment,unstable filling and longitudinal low temperature zone as well as un-reasonable oxide inclusion distribution in the housing,can be eliminated greatly.关键词：Magnesium Alloy;Gearbox Housing;Die Casting;Filling Process Optimization
- 2
- |
- 113
- |
- 2
发布时间：2023-12-18 - 摘要：The manufacturing process,key equipment,process and quality control for aluminum alloy diecasting cylinder block were described,and the application effects of the new technology such as real-time control,vacuum die casting and partial pressurization in the die-casting aluminum alloy cylinder block were expounded.The analysis and improvement of quality problems were conducted.Finally,from the view of SQE,related standards and testing method as well as process measurements of the important characteristics were described.关键词：Aluminum Alloy;Die Casting Cylinder Block;Quality Improvement
- 3
- |
- 295
- |
- 3
发布时间：2023-12-18 - 摘要：Mechanical properties and fracture morphology of the as-cast and heat treated（HPDC）vacuum die casting AT72 magnesium alloy were measured and analyzed,and they were compared with those of AZ91 Dalloy.The results reveal that heat treatments can not exhibit a desirable strengthening effects on the AT72 alloy,and the fracture mode of the HPDC and T5 treated AT72alloy is mainly characterized by intergranular cleavage fracture,while the fracture mode of the T4 and T6treated AT72 alloy is mainly characterized by trans-granular cleavage mode,and most of heart cracks are propagated across shrinkages and holes besides the superficial shell for all AT72 alloys.关键词：AT72Alloy;Die Casting;Heat Treatment;Fracture
- 2
- |
- 85
- |
- 0
发布时间：2023-12-18 - 摘要：The microstructure evolution of near-liquidus casting A380 aluminum alloy with the reheating temperature at 563,573,583 ℃ and holding time for 560 min was investigated.The results show that,with the increase of reheating temperature and holding time,the average grain diameter is increased gradually with the roundness value decreases,and with temperature increase,the changes tendency is accelerated.The optimum microstructure with the average grain diameter of 49.74μm and roundness value of 1.75 can be obtained with the reheating temperature at 583℃and holding time for 20 min.关键词：Semi-solid;A380Aluminum Alloy;Reheating;Microstructure Evolutions
- 2
- |
- 151
- |
- 1
发布时间：2023-12-18 - 摘要：The compression deformation behavior of semi-solid ZCuSn10 copper alloy was tested on the Gleeble-1500 thermal simulator.The results show that at the same strain rates and strain,with increasing in deformation temperature,the compression stress of the samples is declined.At the fixed deformation temperature and strain,before reaching the peak stress,the compress stress of the samples is increased with the increase of the strain rate.In addition,at the same strain rate,deformation temperature and strain,the compression stress of the semi-solid sample is obviously lower than that of the conventional cast sample.关键词：ZCuSn10Copper Alloy;Semi-solid;Compression Deformation
- 2
- |
- 99
- |
- 1
发布时间：2023-12-18 - 摘要：Product model for heavy duty truck gearbox housing and model cluster for gating system with bottom diversion continuous side ingate were made of expandable polystyrene EPS.After dipping and drying coating,the model cluster was put into a single flask,then filled with a dry quartz sand by layer sprinkling with negative pressure free in the whole molding compaction process.Liquid refined and modified ZL101 Aalloy was poured into the pattern cluster at atmospheric pressure,and the gearbox with qualified appearance and mechanical properties was produced successfully.By means of spectrum instrument,surface wrinkled,subsurface shallow inclusion and deep inclusion were analyzed.In addition,the three-dimensional morphology and elemental composition have been analyzed.Finally,the optimization process of EPC was put forward.关键词：ZL101A Aluminium Alloy;Gearbox Housing;Lost Foam Casting;Analysis of Metallurgical Defects
- 2
- |
- 131
- |
- 2
发布时间：2023-12-18 - 摘要：With the wide application of V-process casting technology,even more complex components,the higher requirements of performance of V-process casting films were put forward.In order to improve the performance of domestic V-process films,EVA casting films were modified in formula,and mechanical properties and thermal forming ability of the EVA film modified were improved,which was validated in practical production process.关键词：V-process Casting;Domestic EVA Casting Films;Performance Improvement;Verification
- 3
- |
- 106
- |
- 1
发布时间：2023-12-18 - 摘要：Based on the problem of energy consumption,environmental protection and process stability in precision casting industry,the resistance furnace was modified with Si-C rod heating and cotton fibre insulation.The results reveal that Si-C rod heating furnace only need 140kW·h for baking per-furnace shell mold,saving energy 65%,and it only needs 35kW·h for baking shell mold in the heating furnace,saving 53.3%,compared with those electric furnace,exhibiting significant saving-energy efficiency.关键词：Investment Casting;Silicon Carbide Rod;Cotton Fiber
- 2
- |
- 81
- |
- 1
发布时间：2023-12-18 - 摘要：The feasibility of computed radiography in a swirler precision casting detection was investigated emphatically.CR experiments are designed for the swirler with a large thickness ratio characteristic by using X-ray machine,CRx25 Pscanners and imaging plate with high resolution.Thickness of swirler was compensated by mud mixing with barium sulfate powder,reducing undercut greatly.Wire type IQI sensitivity and gray value were used for evaluating image quality during CR experiments,and compared with traditional film radiography with Kodak AA400.Experimental results show that mean gray values for thin and thick part of swirler are 17 141 and 15 216,respectively,which locates in the linear response range of imaging plate.At the same time,image quality indicators of two parts reach 13,which are equal to corresponding results of traditional radiography,meeting the radiographic sensitivity requirements of inspection process of enterprise,therefore computed radiography is expected to replace traditional radiography for digital X-ray inspection of the swirler.关键词：Computed Radiography;Precision Casting;Undercut;Digital Radiography
- 2
- |
- 137
- |
- 2
发布时间：2023-12-18 - 摘要：Traditional suzhou investment casting is one of presentative technology of Chinese ancient investment casting,which form a set of amature process from late Qing dynasty to the republic of China.Wood pattern was used to wax pattern making,and antique copper arts are famous for true-like and dilicate features,named SuZhou paiste-wax technology.Based on the suviral pattern from the public of China,through coperating with the skiller and exploring the essential point of the ancient pattern,two pass procedures were reproduced,and essential point was summarized,providing a basis of inheritance and development.关键词：Suzhou Pasite-Wax Technology;Drypoint;Repoduction
- 4
- |
- 43
- |
- 0
发布时间：2023-12-18 - 摘要：Carbon nanotubes coated MgO reinforced AZ91 Dcomposites were fabricated by powder technique combined with hot extrusion process.The mechanical properties of the composites prepared were tested,and effects of MgO-CNTs on the mechanical properties of the AZ91 Dalloy composites were analyzed,and the fractograph was observed and analysed by scanning electron microscope.The results reveal that the MgO coated CNTs can strengthen mechanical properties of the composites effectively.When the addition of MgO-CNTs is 3.0% the tensile strength,elongation and microhardness of the composites reach 256.7MPa,12.75%and 130.86 HV,respectively,increased by 41.44%,41.67%and22.4%,respectively,compare to those of the AZ91 Dalloy.However,with the excessive addition of MgO-CNTs,the MgO-CNTs will be cool,resulting in decrease of mechanical properties.关键词：AZ91D Magnesium Alloy;Carbon Nanotubes;Composites;MgO;Mechanical Properties
- 2
- |
- 217
- |
- 2
发布时间：2023-12-18 - 摘要：The research status of pulsed electric field on effects of pure aluminum solidification from the internal and external factors of electric current was expounded.The internal aspect included the selection of electric current pulse type and pulse parameters,and the external aspect included the exerting way and power-on time of pulsed electric field.Then the reaction mechanism of pulsed electric field on pure aluminum solidification process was described through nucleation acceleration aspect,such as magnetic force pulse,cluster structure theory,undercooling and nucleation barrier,and grain growth inhibition aspect,such as Joule heating effect,Peltier heating effect and dendrite fracture.At last,a conclusive decision was not put forward in mechanism,and problems still exist in industrial production,however,the technology can present the future green solidification technique with further exploration.关键词：Pulsed Electric Field;Metal Solidification Structure;Grain Refinement
- 2
- |
- 197
- |
- 3
发布时间：2023-12-18 - 摘要：Influences of boron addition on microstructure and properties of high chromium cast iron with centrifugal composite casting outer layer were investigated.The results show that the eutectic carbides in high chromium cast iron with addition of boron is converted into discontinuous,isolated globular or plate strip distribution from the sharp edges of the strip shape,and microstructure is refined obviously with uniform distribution.With boron addition of 0.3%,comprehensive mechanical properties of cast iron exhibits desirable.关键词：High Chromium;Boron;Carbide;Composite Roller
- 2
- |
- 124
- |
- 1
发布时间：2023-12-18 - 摘要：Using a optical microscope,SEM,EDS and XRD analysis method,effects of different w（Mn）/w（Fe）ratio on the Fe-enrichment phase morphology and performance of the hypereutectic aluminum silicon alloy with high iron content were investigated.Results show that the Fe-enrichment phase morphology in Al-15Si-3Fe with addition of Mn is transformed from long acicularβphase andσphase into herringbone and trifoliateαphase,which is helpful for reducing the negative influence of Fe element on the mechanical properties of the alloy.However,Fe-enrichment phase in the alloy will agglomerate with increasing in Mn addition,and it becomes serious as w（Mn）/w（Fe）increases,leading to decrease of mechanical properties of the alloy.关键词：Hypereutectic Al-Si Alloy;w（Mn）/w（Fe）;Fe-enrichment Phase;Microstructure
- 2
- |
- 100
- |
- 1
发布时间：2023-12-18 - 摘要：Effects of Zr and solid solution treatment on microstructure and mechanical properties of MgEr-Zn alloys were investigated by OM（optical microscopy）,SEM（scanning electron microscopy）,EDS（energy dispersed spectrometer）,XRD（X-ray diffraction）and compressive testing.The results reveal that the phase structure change is absent with Zr addition,however,the percentage composition of X phase in grain boundary is decreased.The microstructure and mechanical properties of Mg97.5Er2Zn0.5alloy are improved significantly with Zr addition.Meanwhile,the solution time of X phase is reduced.The LPSO phase can be observed in the furnace cooled alloys after solid solution treatment,while it is absent in the water cooled alloy.After solid solution treatment,the mechanical properties of the solution-treated alloys are higher than those of the as-cast alloys,and the Mg97.32Er2Zn0.5Zr0.18 alloy is the higher than Mg97.5Er2Zn0.5alloys in mechanical properties.In addition,the mechanical properties of furnace cooled alloys are higher than those of the water cooled alloys.关键词：Mg-Er-Zn Alloys;Solid Solution Treatment;Microstructures;Mechanical Properties
- 2
- |
- 88
- |
- 2
发布时间：2023-12-18 - 摘要：Aiming at high requirement to material and casting quality of small engine cylinder,design of mold,formula of sand core and structural tests were conducted.Zr,Ti and Sr element were added into ZL105 Aalloy for refinement and modification.Methods of filtering,dynamic refining in vacuum,solidification in low pressure were used for the special device.The results show that strength of core can reach 0.08 MPa,meeting the needs of the cylinder block casting with conveniently cleaned.The qualification rate of casting can reach 90%.关键词：Small Engine Cylinder;Core;Vacuum Refining
- 2
- |
- 141
- |
- 2
发布时间：2023-12-18 - 摘要：The aging parameters and effects of coating on aging effects of A356 aluminum alloy wheel were analyzed,and the microstructure and mechanical properties of the alloy wheel were analyzed.The results reveal that the increase of the aging temperature can obviously reduce the differences in the mechanical properties of the alloy wheel before and after coating,improving comprehensive properties and stability of the mechanical properties of wheel products.关键词：Aluminum Alloy;Wheel;Aging;Coating
- 2
- |
- 126
- |
- 2
发布时间：2023-12-18 - 摘要：Effects of Zn on microstructure of an extruded Mg-RE-Mn alloy and its corrosion behavior in3.5%NaCl solution were investigated by means of scanning electron microscope（SEM）,X-ray diffractometer（XRD）,electrochemical test and chemical immersion methods.The results show that with Zn addition,secondary phase MgZn2、Mg2Zn11are generated,and the grain size in the alloys is obviously refined.Zn can improve the anti-corrosion property of the alloy by shifting the pitting potential to a positive value to some extent.With 1.5% Zn content,the grain size is decreased remarkably,and the microstructure becomes homogeneous,meanwhile,the average corrosion rate of the alloy is only 1.180mm/a.When Zn content is 3.0%,the precipitates are increased with the trend of coarsening and segregation.So a galvanic corrosion which can be formed for theα-Mg as an anode and the second phase as a cathode accelerates the corrosion of the alloy,resulting in the average corrosion rate of the alloy of 2.419mm/a.关键词：Mg-RE-Mn-xZn Alloy;Microstructure;Corrosion Resistance
- 2
- |
- 121
- |
- 1
发布时间：2023-12-18 - 摘要：Influences of Zn,Mg and Cu on hot cracking behavior and microstructure of 7075 aluminum alloys were investigated by constrained rod casting（CRC）mold.The results demonstrate that hot cracking sensitivity（HCS）is firstly decreased,and then increased to reach the maximum value,and then decreased with increasing in the content of Zn.HCSminis 76.8when the Zn content is 5.44% and HCSmax reaches 141.6when the Zn content is 6.44%.HCSis decreased with Mg content increase,where HCSmin reaches 72 when the Mg content is 3.68%and HCSmaxis 107.2with 1.68% Mg content.HCSis firstly increased and then decreased with Cu content increase.HCSminis 72 when the Cu content is 1.80% and HCSmaxis 101 when the Cu content is 1.50%.The fracture mode of 7075 aluminum alloys is characterized by intergranular fracture.Cracks are propagated along the low melting eutectic microstructure at the grain boundaries.Hot cracking resistance is well with little eutectic microstructure,and hot cracking resistance is worse with a higher eutectic microstructures in condition of solidification shrinkage with poor feeding fed well.Hot cracking resistance is high with eutectic microstructures distributed along crain boundary to be beneficial for feeding.The as-cast microstructure of 7075 aluminum alloys mainly consist ofα-Al andη-MgZn2.关键词：7075Aluminum Alloys;Hot Cracking Sensitivity;Eutectic Microstructure
- 2
- |
- 458
- |
- 3
发布时间：2023-12-18 - 摘要：The binary TixCu100-x（x=50,57）alloys with 40μm in thickness and 2mm in width were prepared by melt spinning method.The amorphous structure of these ribbons was observed by XRD.The thermal stabilities of Ti50Cu50 and Ti57Cu43amorphous alloys were analyzed by DSC.And the microstructures of two ingot were investigated by SEM（scanning electron microscopy）.The results show that ignored glass transition temperature Tgis observed,while only 1Kdifference is observed between crystalline temperature Txeven if the initial melting temperature Tm difference is as high as 35 Kfor Ti50Cu50and Ti57Cu43 amorphous alloys.Ti2 Cu phase in the Ti57Cu43 alloy is precipitated in the non-equilibrium solidification process by microstructures observation,leading to increasing in the required critical cooling rate of Ti57Cu43 amorphous alloy.The glass-forming ability of Ti57Cu43 alloy is reduced compared with Ti50Cu50 alloy.The relationship is discussed between competing phases of microstructures and thermal stabilities of the two amorphous alloys.关键词：Ti-Cu Binary Amorphous Alloy;Thermal Stability;Glass-Forming Ability;Ingot Microstruc-ture
- 2
- |
- 111
- |
- 0
发布时间：2023-12-18 - 摘要：Glass forming ability（GFA）of Cu based binary bulk amorphous alloy was analyzed,and GFA of the multi-element amorphous alloy was expounded.Through analyzing comparatively the experimental data of Cu-base binary amorphous alloy,the results reveal that in the condition of slight difference between internal and external energy,mixed entropy difference between liquid and crystals plays a key role in GFA of the amorphous alloy.关键词：Binary Cu-base Bulk Amorphous Alloys;Thermodynamics;Glass Forming Ability
- 2
- |
- 104
- |
- 1
发布时间：2023-12-18 - 摘要：<正>2014年11月12日,宇部兴产机械株式会社（"宇部兴产机械"）与东洋机械金属株式会社（"东洋机械金属"）联合宣布,双方合作在中国常熟工厂成功研发出中型压铸机BD-500VC EX（锁模力5 000kN）。新机型将在2014日本横滨压铸展上"亮相"。
- 2
- |
- 37
- |
- 0
发布时间：2023-12-18 - 摘要：<正>据南方都市报报道,广东鸿特精密技术股份（台山）有限公司（"台山鸿特"）项目一期近日顺利投产。目前,项目一期主要生产销售汽车发动机、变速箱等铝合金压铸件和通讯铝合金铸件。台山鸿特项目由广东鸿特精密技术股份有限公司("鸿
- 2
- |
- 23
- |
- 0
发布时间：2023-12-18 - 摘要：<正>2014年11月15日南京云海特种金属股份有限公司（"云海金属"）拟认缴500万元,获得扬州瑞斯乐复合金属材料有限公司（"扬州瑞斯乐"）100%的股权。扬州瑞斯乐成立于2014年6月30日,注册资本为500
- 2
- |
- 32
- |
- 0
发布时间：2023-12-18 - 摘要：<正>2014年11月27日,东莞宜安科技股份有限公司（"宜安科技"）已向中国食品药品检定研究院,提交了关于生产可降解镁合金内固定螺钉的申请材料,获得受理并拿到接收检验回执。据了解,宜安科技生产的可降解镁骨内固定螺钉,在此
- 2
- |
- 57
- |
- 0
发布时间：2023-12-18 - 摘要：<正>近年来,国内的泵阀铸件产业发展迅速,但其行业发展依然存在很多问题。由于国内的泵阀产业长期进行价格大战,致使泵阀行业长期徘徊在世界泵阀产业的中低位。因此,我国的泵阀产业必须从转变竞争方式着手,改变其弱势
- 4
- |
- 121
- |
- 1
发布时间：2023-12-18 - 摘要：<正>在2014年国际（东莞）铸业展上,富来（上海）压铸机有限公司展示的一台铝合金真空浇注炉格外引人注目。富来公司研制的铝合金真空浇注炉,用于熔化及保持压铸铝合金的温度。其浇注系统主要包括铝液真空罐、吸入熔体的抽真空装置,以及位于吸入位置的特殊闭合装置。
- 2
- |
- 47
- |
- 0
发布时间：2023-12-18 - 摘要：<正>压铸周刊（2014年11月20日东莞）梧州市鸿图精密压铸有限公司（"梧州鸿图"）年产2万吨精密压铸及模具项目一期、二期厂房钢结构主题工程已完成,一期工程已有部分压铸机调试完成开始试产,预计12月可全面投产。
- 2
- |
- 26
- |
- 0
发布时间：2023-12-18
- Technical support is provided by Beijing Founder electronics co., LTD 京ICP备09064830号-19
京公网安备11010802024621 - It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
- Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.
0