摘要:Die casting industry in china has grown up into a newly developing industry for half a century from small scale to large one with annual increasing 8% to 12%.The base data of die casting production increase in china are offered;developed experience and developing tendency on die casting market are expounded;new position to be faced and methods to be taken in die casting industry in china in coming 2000 year are described.
摘要:Formulated and implemented experience on standard of die casting technology in china is overviewed.Formulation principle,main content,feature and implementation of seven items of nation standard on die casting technology issued first in the 1990s in china were expounded.View and suggestion on tendency of standardization,on propagating preliminary knowledge of standardization technique,on enhancing attention to standardization in die casting trade and interrelate plans are proposed.
关键词:Die Casting;Die Cast Alloy Standard;Die casting Standard
摘要:Different influence of Sr modification with different parameters by analyzing metallographic structure on properties of die casting Al alloy is studied.The results show that Sr modification should not be taken in rapid solidification for die casting Al alloy,but it is necessary to take different consideration in the light of structure characteristics and special demand for castings.
关键词:Die Casting Al Alloy;Sr Modification;Metallograph Analysis;Mechanical Properties
摘要:Characters of the flow field of molten metal in MHD caster are simulated and analyzed by means of numerical simulation.Relationship between flow field of molten metal and the number of magnet poles,arrangement of magnet poles,rotating velocity of magnetic field as well as helical arrangement of permanent magnets is revealed.It can be used as reference for optimizing design of permanent caster.
关键词:Numerical Simulation;Flow Field of Molten Metal;Magnetic Field of Permanent Magnet
摘要:Kinds,morphology and formation mechanism of hard inclusion in aluminum alloy die castings are analyzed.The technological measures for resolving quality problem are offered.
摘要:A new parameter of hot contact angle and its quantitative relationship between evaporation time and temperature are established based on the general principle of hot wetting.The parameter is used as the evaluation index for solvent and hot wettability of coating for die casting,overcoming the shortcomings of invisibility and low comparability in the substitution of evaporation time for hot wettability.Factors affecting hot wettability of coating for die casting are studied too.
关键词:Coating for Die Casting;Hot Wettability;Hot Contact Angle
摘要:Different parameter variation caused by energy distribution during die casting process shows that high energy filling mold is the key to insuring quality of die casting.
摘要:To resolve quality defects in Mg alloy production,processes including flux prescription,melting operation and post-treatment are improved.As a results,the quality of Mg alloy ingots,especially the surface quality,are improved greatly.
摘要:The failure of manufacturing Cu alloy valve body by die casting and hot extrusion casting were point out.Characteristics of squeeze casting technology were expounded.Application of squeeze casting to Cu alloy valve body in gas fired appliance and influence of specific pressure on properties of product were analyzed.
摘要:A method for improving power mass ratio by reforming medium frequency coreless induction furnace of WG 0.15 100 1/KGPS 100 1 is proposed.The results show that melting rate is increased and melting time is shortened.Alloy elements loss and energy consumption are decreased
关键词:Medium Frequency;Induction Furnace;Power Mass Ratio;Melting Rate
摘要:Indirect squeeze casting technology for bearing holder is studied.Structural features of die are analyzed and reasonable technological parameters for liquid forging are determined.The results show that Al alloy bearing holder by squeeze casting can meet the performance requirement greatly and displace Cu alloy holder
摘要:Three heat transfer mathematical models are given based on working condition of horizontal cold chamber die casting machine.Geometrical deformation of 2 D temperature distribution during shot sleeve working is simulated by ABAQUS software.By comparison between simulation and experimental results,optimizing mathematical model has been made.
摘要:The procedure of ISO14001 certification is introduced.The main problems with caution for the procedure are analyzed.Some references are given for Chinese die casting enterprise to break“green defence”.
关键词:ISO14001;Die Casting Enterprise;Environmental management System Certification
摘要:Die casting factories need to consider problems in various aspects,including not only melting,die casting,cleaning,aging treatment,shot blast,die,inspection,but also general layout of factories involving logistics,water,electricity,fuel,raw materials,purchase,stock and transporation.
摘要:Survey of 20 th international die casting congress & exposition in the U.S.A is introduced.The novel die casting trends and recent development tedency are described briefly.
关键词:International Die Casting Congress;Exposition;Die Casting Trend