最新刊期
卷 32 ， 期 3 ， 2012
- 摘要：The influence of different temperatures and time on the precipitation and coarsening behavior of secondary Al3Sc in the Al-Sc alloy and the role of the secondary Al3Sc in properties of Al-Sc alloy were investigated.It is concluded that the coarsening behavior follows the kinetic law of the Lifshitz-Slyozov-Wagner（LSW） theory with the alloys aged at 350 ℃,400 ℃ or 450 ℃,and it is predicted approximately by the LSW theory at 500 ℃ within 1 hour,however,departed from the LSW theory with a lower coarsening speed at 500 ℃ with aged more than 1 hour.The hardness of Al-Sc alloys is decreased with the particles radius increasing in the range of 440 nm.When the radius of Al3Sc is in range of 4 7.5 nm,the alloy hardness reaches its peak value of about 750850 MPa,nearly 3.754.25 times of the value before heat treatment,exhibiting significantly precipitating strengthening effects.When the particle radius reaches 40 nm,the alloy hardness reduces to 300 MPa.关键词：Al-Sc Alloy;Secondary Al3Sc;Precipitation;Coarsening Behavior
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发布时间：2023-12-18 - 摘要：A novel preparing technique for producing high purity Al-5Ti-1B grain refiner was presented by using processes including alloying with electronic and magnetic stirring,rotational degassing and high efficient filter,based on the traditional process of complex halide salts with molten aluminum.The results show that the impurity contents have been obviously decreased,and purity of Al-5Ti-1B alloy is greatly increased by using the new high-cleanliness process.Compared with the traditional method of "complex halide salts with molten aluminum",microstructural characterizations reveal that the intermetallic TiAl3 and TiB2 phases have small size of 530 μm and 0.371.24 μm,respectively,become more homogeneous distribution in Al-5Ti-1B master alloys prepared by "high-cleanliness process",which had met the requirements of refining treatment of high quality Al alloys.The refinement mechanism of the Al-5Ti-1B refiner was also discussed,which provided a theoretical basis and technical support for further improving the quality of Al-Ti-B grain refiner in industry.关键词：Al-5Ti-1B Alloy;Grain Refiner;Complex Halide Salts With Molten Aluminum;High Cleanliness;Microstructure;Lattice Mismatch
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发布时间：2023-12-18 - 摘要：Influence of heat treatment at 200900 ℃ on phase transformation temperature,phase hysteresis（As-Ms）,phase transformaition enthalpy（ΔH）and microstructure of NiTiNb5 shape memory alloy was investigated by DSC,OM and SEM.The results show that the absence of martensite or reverse phase transformation can be observed at both forged NiTiNb5 alloy and rolled one with heat treatment at below 700 ℃,which shows the NiTiNb5 alloy transforms into structural material.However,with increasing heat treatment temperature to higher than 800 ℃,the martensitic phase and its reverse transformation can be observed in forged NiTiNb5 alloy or rolled one,showing the recovery of shaped memory effects.The microstructure analysis exhibits that the recrystallization in NiTiNb5 alloy is mainly responsible for its recovery functional materials performance after heat treatment at more than 800 ℃.关键词：NiTiNb5 Alloy;Heat Treatment;DSC;Phase Transformation Temperature;Microstructure
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发布时间：2023-12-18 - 摘要：<正>近日,米易县与四川安宁铁钛股份有限公司就年产100万吨耐磨钒钛铸造新材料基地项目签订了建设协议,标志着该项目在米易正式落地。记者获悉,该项目一期工程总投资39.77亿元,计划于今年6月30日前开工建设。据了解,该项目计划投资84.71亿元,其中建设投资75.70亿元,选址在米易县一枝山钒钛产业园区。项目分二期建设,一期工程建设总投资39.77亿元,将于今年6月30日前开工建设,计划
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发布时间：2023-12-18 - 摘要：<正>近日,江西省发改委批复同意在鹰潭高新技术产业园区建设鹰潭新材料省级战略性新兴产业基地,重点发展铜合金新材料。目前,鹰潭高新技术产业园区现有铜加工企业50余家,铜加工能力达60余万吨,产品涉及铜杆线、铜棒、铜板带、铜排、铜铸件、漆包线、镀锡丝、铍青铜等20多个品种,其中铜合金新材料约占
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发布时间：2023-12-18 - 摘要：<正>总投资14.3亿元的6万吨电子电器精密铜带一期项目在菏泽高新区投产运行,达产后年销售收入可达50亿元、利税5亿元。宽幅挤压镁合金板材、敏感功能材料、氧化锆超高温耐火材料、碳纤维材料等一批战略性新材料生产企业也全面投产,新材料已成为推动菏泽高新区产业转型的强力引擎。该区以科技创新为引领,定位产业高端,重点培育发展了新型材料产业,企业呈现出投资规模大、研发能力强、科技含量高、集群化发展迅速等特点。总投资50亿元的华盛荣镁合金科技产业园项目,拥有18项国际先
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发布时间：2023-12-18 - 摘要：<正>近期,投资20亿元年产150万件汽车发动机气缸盖的瑞明控股武汉工业园项目在武汉蔡甸常福工业园奠基。据了解,瑞明控股武汉工业园项目计划总投资20亿元,达产后预计实现年新增产值32亿元。其中,一期总投资10亿元,新增产值16亿元。全部建成后,将形成150万件发动机气缸盖的生产能力,为神龙汽车、东风乘用车、德国宝马、
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发布时间：2023-12-18 - 摘要：<正>近期,海关发布1月份铝合金出口详细数据,1月我国铝合金共出口44146吨,较上个月下降25.1%。虽然受到春节假期因素影响,1月我国铸造铝合金出口下降,但整体降幅普遍低于预期。据上海有色网（SMM）了解,2011年春节当月铸造铝合金出口环比降幅达到45.6%,与去年春节假期相比,今年1月我国铸造铝合金出口量降幅并不明显。而今年由于国外企业为一季度生产备库需求增大,1月份采购意愿较强,造成国内部分
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发布时间：2023-12-18 - 摘要：<正>根据中国模具工业协会经营管理委员会编制的《全国模具专业厂基本情况》统计,近年来中国模具以平均25%以上的速度增长,高于中国GDP的平均增值一倍多。其中,铸造模具约占各类模具总产值5%,每年增长速度高达25%,发展十分活跃。相关人士表示,中国汽车、摩托车工业高速发展,产量连续多年大幅度增长,位居全球第一,急剧地增大对复杂、大型、精密铸造模的需求,因而作为铸造工业的重要支撑──铸造模具产业获得了前所未有的发展机遇。铸造件应用的范围很广,几乎
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发布时间：2023-12-18 - 摘要：<正>近期,走访多数阀门企业发现,由于铸件短缺影响阀门企业的生产,前段时期的用工荒等问题造成铸造企业的开工受到限制,无法按时完成订单,最后导致下游阀门企业的正常生产。据悉,2009年全国铸件总产量为3530万吨,连续10年居世界首位,以平均每年10.9%的速度增加,覆盖汽车、能源、机床、管道泵阀、航空航天、工程机械等行业;但行业问题不容乐观:企业规模小,产业集中度低,产品结构不合理,自主创新能力弱,装
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发布时间：2023-12-18 - 摘要：It was investigated that microstructure,texture evolution during rolling process,and influences of total reduction and asynchronous ratio on microstructure,texture and mechanical properties of AZ31 magnesium alloy sheet which processed by normal rolling（NR） and asynchronous rolling（AR） technology.The results show that,when the total reduction ratio is in a range of 3%15%,the grain size and uniformity in both NR sheets and AR sheets exhibit similar change trend.During the initial stage of rolling,with the increase of reduction,the number of twins is raised,which results in the grain orientation deflection in NR and AR rolled sheets.Namely,axis C of grains tended towards the normal direction（ND）,decreasing the silk texture in the extruded sheet.When the total reduction ratio reaches 24%,twins are greatly decreased and or even disappeared.When the total reduction ratio is in a range 3%24%,the influence of NR rolling on the mechanical properties of the AZ31 magnesium alloy sheets can be neglected.While total reduction ratio reaches about 24%,asynchronous rolled sheets present acceptable plastic performance,and the tensile strength reaches 309 MPa,and the peak strain is 0.163.关键词：AZ31;Magnesium Alloy;Asynchronous Rolling;Texture;Mechanical Properties
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发布时间：2023-12-18 - 摘要：2014Al/TiB2 composites were fabricated by a mixed salt reaction in-situ synthesis process,and friction and wear properties of the composites were investigated.Microstructure of the composites was observed by XRD（X-ray diffraction）,SEM（scanning electronic microscope） and TEM（transmission electronic microscope）.The results reveal that in-situ TiB2 particle is very fine with grain size smaller than 1μm and uniform distribution in the composites,obviously refining the microstructure of the composites.Dry sliding frictional and wear experiment at room temperature show that wear resistance of the composites is evidently superior to that of matrix alloy.Wear mechanism of matrix alloy is characterized by adhesive wear,and wear mechanism of the composites is characterized by typical abrasive wear.关键词：In-Situ Syathesis;TiB2/2014Al Composites;Microstructure;Friction and Wear Property
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发布时间：2023-12-18 - 摘要：High temperature compressive behavior of as-cast Mg-Zn-Y-Zr magnesium alloy was investigated on Gleeble-1 500 at 250-450 ℃ and strain rate from 0.001 to 1 s-1.Constitutive equation of the alloy was described by hyperbolic sine function.The results show that the stress-strain curves are characterized by softening mechanism of dynamic recovery and dynamic recrystallization,and the peak stress is increased with the decrease of deforming temperature,or the increase of strain rate.Constitutive equation of high temperature deformed Mg-Zn-Y-Zr magnesium alloy is well accordant with the high temperature deformation characteristics based on true stress-true strain curves.关键词：Mg-Zn-Y-Zr;High Temperature Deformation;Constitutive Equation
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发布时间：2023-12-18 - 摘要：<正>根据美国明尼苏达州德卢斯市当地媒体透露,铸钢件及铸铁件生产企业MEElectmetal公司预计将投资1220万美元,将现有企业产能提高25%。项目将在2012年初实施,报道中未涉及整个项目运作细节。MEElectmetal公司生产粉碎和铣削设备中的耐磨铸件。德卢斯和坦佩两家铸造厂为北美与
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发布时间：2023-12-18 - 摘要：<正>美铝是世界最大的氧化铝供应商,也是一家具有全球生产能力的电解铝和化学级氧化铝的全球供应商。其优质的氧化铝是客户优化其产品和生产流程的最佳原料。无论在世界何处,美铝都是客户最可靠的铝锭供应商。美铝全球一体化的电解铝体系,是全球铝加工商的首选。美铝产品应用于航空航天,汽车、包装、建筑和商业运输及工业市场,为客户提供包括铝箔、薄膜、
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发布时间：2023-12-18 - 摘要：The flow field,temperature field and microstructure of complex thin-walled superalloy K4202 castings were simulated with the help of the finite element software.The results show that,with a well established filling system,the thin-walled castings can be well filled in the condition of low super-heating.According to the temperature field,the shrinkage porosity easily occurs in the thick wall location or the location with variable cross-sections.With the low super-heating pouring,the uniform structure with the grain size ASTM2-3 can be observed in the whole castings.关键词：Superalloy K4202;Low Super-Heating;Investment Casting;Filling;Solidification
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发布时间：2023-12-18 - 摘要：Filling and solidification of die casting cylinder were simulated by numerical simulation,and the distribution and change of temperature field and velocity field were visualized.The desirable cylinder quality can be obtained with pouring at 620 ℃ and pre-heated mould at 180 ℃ as well as filling at 4 m/s.The experimental results are well in agreement with simulated ones.关键词：Cylinder;Numerical Simulation;Die-Casting Process
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发布时间：2023-12-18 - 摘要：A technique of grain refinement and semisolid alloy preparation was introduced,and its research and applications in recent years have been summarized.The vibrating sloping plate process can significantly refine grains size in alloys,and the grain size in pure aluminum can be refined to one grade easily by the vibrating slope plate process.In addition,the primary Si and eutectic Si in hypereutectic Al-Si alloy can be well refined by the process.The semisolid billets such as A356,Al-6Si-2Mg,A2017,AZ91,AZ31 and hypereutectic Al-Si alloy with fine spherical structure or equiaxed grain have been prepared by the vibrating sloping plate process,and the thixoforming of the semisolid billets has been conducted.The tubes,profiles and wires of the alloys such as 6201,A2017,AZ31 and AZ61 alloy have been manufactured by continuous semisolid extrusion,and the strips of the alloys such as A356,A2017,AZ91,AZ31,AZ61,and Mg-Sn alloy have been produced by semisolid rheo-rolling.Due to the vibrating sloping plate process exhibiting the advantages of low cost and high efficiency,it has a good application prospect in the fields of rheo-diecasting,rheo-extrusion,rheo-rolling,microstructure refinement of metal,and so on.关键词：Melt Treatment;Grain Refinement;Microstructure;Semi-solid;Forming
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发布时间：2023-12-18 - 摘要：Amounts of thin-walled castings have been used in aerospace,spaceflight and defense technology industry.The vacuum counter-pressure casting technology has been extensively employed to the production of high quality thin-walled components due to the advantage of filling and solidification.The vacuum counter-pressure casting thin-walled components have attracted much attention at home and abroad.The recent research progress in the control system of vacuum counter-pressure casting,filling behavior and solidification process of thin-walled castings were described.The grade-pressure control system of vacuum counter-pressure casting,filling behavior models,microstructures and feeding capacity of vacuum counter-pressure casting were introduced in detail.Finally,the existing problems were put forward and the future prospect was presented.关键词：Vacuum Counter-Pressure Casting;Thin-Walled Castings;Filling Behavior
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发布时间：2023-12-18 - 摘要：Effects of different parameters of semi-solid isothermal heat treatment on microstructure of semi-solid Cu-Ca binary alloy were investigated,and through comparatively observing as-cast microstructure,the evolution mechanism of semi-solid microstructure after isothermal heat treatment was presented.The results indicate that the microstructure evolution of semi-solid Cu-Ca alloy after isothermal heat treatment is mainly related to the isothermal temperature and holding time.In a given range,with increasing in the semi-solid isothermal temperature or the holding time,the microstructure is evolved from dendrite into un-dendrite structure.The desirable spherical structure with the best roundness can be observed in the semi-solid Cu-Ca alloy with holding at 957967 ℃ for 4560 min.关键词：Cu-Ca Binary Alloy;Semi-solid Isothermal Heat Treatment;Microstructure
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发布时间：2023-12-18 - 摘要：Aiming at die casting thick-walled ADC automobile clutch gear,P-Cu modification on hypereutectic Al-Si alloy suitable for die casting was conducted.Die casting scheme for clutch gear was designed and simulated,meanwhile,vacuum die casting and local pressurization technology were developed.The results show that with 0.1% P addition,ADC14 exhibits good modification effects with 6 h modification time,where primary Si phase in the alloy reaches 2040 μm with uniform distribution,and the depth of Si particle depletion zone on surface of the castings is in the range of 0.180.20 mm.At a given injecting parameters,the mechanical vacuum valve is superior to zig-zag valve in vacuum effects,and the rejected rate with gas hole is decreased by 10%.Shrinkage porosity（hole） at thick-wall of the gear can be effectively eliminated by optimized local pressurization,and the quality of the gear is improved,qualification rate of mass-production is more than 95%.关键词：Hypereutectic Al-Si Alloy;Gear;Thick-Walled Die Castings;Vacuum Die Casting;Local Pressurization
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发布时间：2023-12-18 - 摘要：It is difficult to die casting structural components for car because the structural components require very high mechanical properties and high casting quality.Buhler has developed die casting technology of structural components based on the comprehensive know-how for years and structural component features for the car.The technology involved into many factors such as die casting machine,die casting die,alloy and its treatment,vacuum application,and optimized die casting process.The production shows that structural components can be produced in common die casting machine based on the factors mentioned above.关键词：Structural Components;Die Casting Components;Die Casting
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发布时间：2023-12-18 - 摘要：Basing on die casting mold optimal selection,structure design and die offer of the authority knowledge and expert experience,we estabished die-casting die material knowledge base,design knowledge base and offer knowledge base.Human-machine interface was designed which mainly included material selection module,design module,offer module and knowledge module.Casting die material selection and auxiliary design expert system was eventually developed through the man-machine interface and knowledge base connection.关键词：Die-casting Die;Material Selection and Material Application;Die Casting Die Design;Expert System
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发布时间：2023-12-18 - 摘要：The low-pressure investment casting WE43 magnesium alloy components was performed with the ignition-proof ceramic shell.The results show that the produced parts exhibits desirable surface quality with oxidized inclusion free and clear profile,high dimension precision,and excellent inner-quality.After T61 heat treatment,the average tensile strength,yield strength and elongation of parts produced at room temperature and 250 ℃ reach 255 MPa,185 MPa,5.0% and 225 MPa,165 MPa,12.0%,respectively,meeting the requirements of application.关键词：WE43 Magnesium Alloy;Ignition-proof Ceramic Shell;Low-Pressure Investment Casting
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发布时间：2023-12-18 - 摘要：Origination of slurry-plate inclusion and surface-layer exfoliation in investment casting mold shell was analyzed.Slurry-plate inclusion is closely related to the gap existed in the matching face,and surface-layer exfoliation is attributed to the un-fastened bonding of matching face resulted from the thermal expansion.Two defects can be eliminated by altering wax pattern structure,assembling ways and pouring ways.关键词：Investment Casting;Slurry-Plate Inclusion;Face-layer Exfoliation
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发布时间：2023-12-18 - 摘要：The production of a typical thin-walled aluminum castings with gypsum mold casting combining with pouring in vacuum pouring and solidification under pressure was performed.By controlling the gypsum mold making process and reasonable additive use,adopting open-gating system with multi-point arrangement,and optimized pouring parameters,such as pouring time,pouring position,the mold temperature and pouring temperature,the thin-walled aluminum castings were produced successfully,which met the requirement of the specification.关键词：Aluminum Casting;Gypsum Mold;Vacuum Pouring;Solidification Under Pressure
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发布时间：2023-12-18 - 摘要：Some problems in effects of coatings spraying on environment and efficiency as well as long-term operation of vacuum system in practical production restricted the development of V-EPC technology.V-EPC casting aluminum alloy castings were conducted.The principle of V-EPC with coating-free was presented,and EVA film change for aluminum alloy was analyzed.Based on the analysis of principle,V-EPC with coating-free was conducted,and the proper parameters were investigated.In addition,to decrease the energy consumption of vacuum equipment,compound casting of V-EPC with green sand was presented.关键词：V-EPC;Aluminum Alloy;Coating-Free;Green Sand
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发布时间：2023-12-18 - 摘要：Archimedes method was used to test the density of sintered samples,and the effects of the argil on sintering behavior of the coating for evaporated pattern casting（EPC） cast steel were investigated through measuring density of sintered samples by Archimedes method.The results show that with increasing in the argil content and in the sintering temperature,the volume density of the samples is increased.The volume density of the sample is increased significantly with 5% argil content at 1 550 ℃,meeting the requirements of the coating for evaporated pattern casting cast steel.The practical pouring experiment was conducted to verify the coating behavior.The coating layer cross-section was observed by scanning electron microscope（SEM）.The results reveal that good sintering layer contacting with steel sintered can be observed,where refractory is aggregated into a whole piece to prevent the further penetration of molten steel,so that the coating easily stripped from the casting surface automatically.关键词：Argil;EPC;Coating For Steel Casting;Sintering
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发布时间：2023-12-18 - 摘要：Through practical production investigation,mechanical fault of SCR cast wheel which limited the production was resolved successfully.Through deeply investigating the origination of mechanical fault of SCR cast wheel,some pertinent measures were presented,such as technological equipment innovation and focalization maintenance,fixed-time check and in-time monitor as well as proper-time modification,which provided a guide for increasing service life of cast wheel,improving the quality and production as well as economic efficiency of copper rod.关键词：SCR Cast Wheel;Thermal Fatigue;Technological Equipment Innovation;Control of Mechanical Fault;Service Life
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发布时间：2023-12-18 - 摘要：WC particles reinforced steel matrix surface composites were fabricated successfully through adding proper ferro-molybdenum powder in the preformed composite layer to control interface by the vacuum full-mold infiltration casting process under negative pressure.The phase compositions,microstructure and hardness of the composite layer were characterized by optical microscope（OM）,scanning electron microscopy（SEM）,X-ray diffraction（XRD）and micro-hardness tester.The results show that,the interface structure and mechanical properties as well as the cast-infiltration effects of the composite layer are improved significantly by adding 16.67 % ferro-molybdenum powder in the preform.Meanwhile,cast-infiltration layer thickness is increased.With the volume fraction of alloy carbide increase,the composites layer hardness is nearly 2 times higher than that of the matrix,greatly enhancing the wear resistance of the WCP/steel composites.关键词：Vacuum Full-Mold Infiltration Casting Process;Preformed Composite Layer;Ferro-Molybdenum Powder;Cast-Infiltration Layer
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发布时间：2023-12-18 - 摘要：In-situ TiB2particles reinforced ZL203alloy composites were fabricated successfully by the re-action of halide salts with aluminum melt.During fabrication process,pulsed magnetic field（PMF）was employed to improve the wear resistant properties of the composites.The dry sliding wear behavior of the matrix alloy and the composites under various loads were examined.The results show that,with the addition of TiB2particles,the solidification structure of the composites is refined apparently,and it is further refined by imposing PMF in the fabrication process.The wear resistance of the composites is sig-nificantly superior to that of the matrix alloy.And the wear resistance of composites under a heavy load is further improved by imposing PMF in the fabrication process.By comparison with the composites fab-ricated without imposing PMF,the critical transition load from mild wear to severe wear is increased from 80Nto 100N.The analysis of worn-out surfaces indicates that the wear mechanism of the matrix alloy is characterized by the co-action of severe adhesive wear and delamination wear,and it mainly ex-hibits abrasive wear with slight adhesive wear in the composites without PMF,and abrasive wear is dominant in the composites with PMF treatment.关键词：Composites;In-situ TiB2Particle;Pulsed Magnetic Field;Dry Sliding Friction and Wear;Wear Mechanisms
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发布时间：2023-12-18 - 摘要：The effect of rare earth Pr on a new Al-Cu casting alloy was investigated.The results show that the rare earth Pr mainly exists in grain boundary,forming some rare earth compounds,which can refine the grain size,and improves the dispersivity of the precipitated phase and fracture morphology.Thus,the microstructure and propertie of the alloy are improved.关键词：Al-Cu Alloy;Rare Earth Pr;Cas Aluminum Alloy
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发布时间：2023-12-18 - 摘要：Effects of Ce addiiton on the microstructure and mechanical properties of ZA43 alloys were investigated.The results indicate that the as-cast microstructure of ZA43 alloy can be refined by Ce addition,and α-Al phase is converted from developed dendrite into granular phase,which are responsible for the improvement of mechanical properties and wear resistance of the alloy.Ce element in form of intermetallic compound is mainly distributed into boundary.Comprehensively considering the effects of Ce addition on microstructure and properties of the alloy,0.15% Ce addition is a satisfied choice.关键词：ZA43 Alloy;Cerium;Microstructure;Mechanical Properties
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发布时间：2023-12-18 - 摘要：To whole casting large thin-walled bronze Buddhism guan-yin face with 55 m2 in processing area,the pattern was made of EPS foam sheet by digital-controlled machining.Meanwhile,resin sand mould was adopted,and gating system with bland-holder top pouring was designed with pouring at 1 2001 220 ℃.Finally,the bronze face of Buddhism guan-yin with 70 m in height at the Hongkong was produced successfully.关键词：Thin-Walled Bronze Castings;EPS Pattern;Resin Sand Casting
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发布时间：2023-12-18 - 摘要：<正>历届的世界铸造大会一直以来都备受国内外铸造行业关注,在今年整个铸造行业都低迷的情况下,2012年的世界铸造大会更加被铸造行业所期盼。世界铸造大会已经迈过了69个年头、奔赴了69座城市,推动了全球铸造行业的发展,而备受期待的第70届世界铸造大会将于2012年4月25-27日在墨西哥新莱昂州蒙特雷市举办。第70届2012年世界铸造会议将集中展示铸造行业国际最新趋势。会议将计划介绍交流详细
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发布时间：2023-12-18 - 摘要：<正>2012年5月,第十一届中国国际铸造博览会将在北京新国展盛大开幕,万丰科技将在全球铸造设备与加工设备汇聚的E4馆炫目亮相,隆重推出工业机器人自动化装备新品,并展出第七代高性能低压铸造装备等系列产品,展位面积为180平米,展会号E4b1。纵观铸造装备业界群英,万丰科技在低压铸造装备、工业机器人铸造自动化系统集成领域,已成为行业佼佼者,在市场占有率、品牌影响力、用户满意度等多方面具有明显的领先优势。2011年6月,万丰科技携一款小型精巧的455低压铸造机参加了全球铸造业盛会-德国杜塞尔多夫铸造展,该款铸造机主要用于电力金具等铸件的生产,其核心控制技术已达到业内领先水平。更为惊喜的是,2011
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发布时间：2023-12-18 - 摘要：<正>2012年2月25日,"全国铸造生铁协会成立大会暨铸造生铁企业转型升级研讨会"在北京日航饭店隆重举行。国资委、国家工信部领导,中国铸造协会领导及相关部门负责人,以及来自全国各地的铸造生铁生产企业负责人,中机生产力促进中心及中冶设备研究设计总院负责人等会议代表和来宾近200人莅会。先后审议通过了《中国铸造协会铸造生铁分会工作条例》、《铸造生铁行业自律公约》、《中国铸造协会铸造生铁分会理事会组成方案》并选举产生了"中国铸造协会铸造生铁分会理事会"。在接下来
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发布时间：2023-12-18
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