PRODUCT NEWS/產ռ新聞 More recently, the old trend of using high magnesium-


bearing MgFeSi alloys has been reversed. Metalcasters are becoming more environmentally conscious, and lower reac- tivity alloys are attractive, not only in terms of reactivity, but also the significant increase in Mg recovery and lower need for inoculation to repair damage done by the reaction. Te two trends—lanthanum as the source of rare-earth element and lower magnesium in the alloy—have created greater awareness of ladle design and geometry. A well designed tundish lid, a properly dimensioned and main- tained pocket and good control on additions and tap weights will give the most effective use of the alloys and maximize magnesium recoveries. Elkem provides nodularizers, inoculants and full sup-


port in the design of, or improvements to, metal treatment systems. ■


最近，Խ有ङ҅用高խ镁量ङ3M,K9O合金ङ趋势已经 逆转。铸造ѣЏ越来越Ӏ有环ґ意જ，ѺՆ应性ङ合金 ङM3加增ੋ显要需Ќ৲，面方性应Ն֨юЉ，睐青ӱՉ 。害损ङ育ㄉثङ成造应Ն֜Ѻ降Ճљ收֛ Д这，量խङ镁И金合Ѻ降չ源来ङপҫ֦२Оҁ镧


心ত。ਖ਼ৰӣҭИઋગչ状形Ѿәङ包浇֨经已势趋य़ Ճљ，ੲՍङЏҁй易并ेӕت尺，包浇ङत有ङઋગ 并高最ӱ达率效用҅金合҅ر，量重չ量ҵ加Ӳ控й易 。率收֛ङ镁高提֪چ限ם最 ગङ面方理הً金О并剂育ㄉ、剂化球供提՛Ҹਂּ ઋչ改ਧ提供Ҷ方ѹङ支持服务。 ■


Optimizing the HPDC Process With an Integrated Vacuum System Te use of vacuum technology in diecasting is nothing


҄用集成ँी系ঞѨ化Ը铸工৺


new. However, over the past few years, demand for crash-rel- evant structural components has increased substantially. Now, vacuum technology plays a significant role in reaching strin- gent part quality targets. Various “add-on” vacuum systems are available on the market. Typically, these systems are con- nected with digital inputs/outputs or Bus interfaces. Digital interfaces based on I/Os are inexpensive, but they limit the exchange of information significantly. Bus interfaces such as Profibus or Profinet are somewhat better in this regard. Still, they are substantially more complex to manage and require complicated coordination between the control systems of the diecasting machine and the peripheral vacuum system. With these peripheral solutions, it is difficult to provide operators summarized and useful information in real time. In order to ensure that current as well as future demands


for process monitoring and process documentation are met, the limitations caused by the interface must be elimi- nated. Te easiest and most efficient way to accomplish that is to integrate the control system and monitoring of the vacuum process into the die casting machine control system. Bühler’sSmartVac system significantly improves the opera- tion of the machine and the flow of information to help users improve productivity. Te benefits of an integrated solution are:real-time process control/monitoring, ease of operation and optimization of the casting process. Bühler die casting machines store a wide range of process


parameters for every machine cycle.By integrating the vacuum system into the machine controls,Bühler makes all of the vacuum parameters readily available. Tese measure- ments are automatically and accurately archived with the corresponding machine cycle and therefore, to the corre- sponding part.Now, all castings can be traced back to their corresponding process parameters, including the vacuum measurements. Furthermore, the progression of the vacuum pressure can be displayed directly on the casting diagram. Te simultaneous display of the vacuum profile with the casting


Ծ过֨，是Ѹ。有۵来近非并铸Թй用术技空ऱر ，֨现。升提猛迅求需ङў构ৈҼब撞ौث，里年әङ ङ重轻足Рव有И标ऩ量ૅў零ङ苛Е现实֨术技空ऱ ӑەਢ一。统系空ऱ式加附य़՟有Ї面١ӹऩ。用ҁ йׂ。Ս接ি总或ӟ输 Ј，这п系统都连接数字输ҵ Ӳ限֪ם极ћ它是Ѹ，贵昂Љ并Ս接字数ङӟ输 输ҵ дҒ息с换。就这一方面৲ઈ，685,/(;9 或685,/- 杂ז理管ङћ它，是Ѹ。ױ更得ҟਈՍ接ি总ङঝ:+4 ऱ边յչ统系Ӳ控ङ械机铸Թ求要还，ך很ӟ高要چ३ О时Ճ难很，案方Ӑઆ边յп这用҅。લ协إত统系空 操ҁմ提供包概括性Ќ有用ङҒ息。 Одेґ满足当ӹչ未来ङ工ਫड控չ流३ઓ录需 控ر是法方ङ效有单এ最。Ӳ限Ս接除消须必ћ我，求 Ӳ系统չऱ空工ਫङड控工ҁ集成ӱԹ铸机械ङ控Ӳ系 性ҁ工ङ械机д֑改ੋ显统系IG<ZXGS9ङXKRN½(。统 ਈչҒ息流，有助й提升用户ङ工ҁ效率。集成式આӐ 方案ङѩ势是：实时工ਫ控Ӳ ड控、便й操ҁչѩ化 Թ铸工ਫ。 量םङ环循ਫ工一每й用适有ҥ存机铸ԹङXKRN½(


这，统系Ӳ控械机ӱ成集统系空ऱرXKRN½(。数Հਫ工 完动ਘ都量测п这。ՃՕ۴ઇ都数Հ统系空ऱ有۱એ ेতלਈ，此֜，录ઓेӕ期յ械机ङ应ब过通并，成 追לਈ都数Հਫ工应बङ造铸有۱，֨现。ў零应बӱ љՕӑە现实ङچ空ऱ，יՐ。量测空ऱ括包，ӱ得溯 এچ空ऱॐ显步գ֣造铸过通。И֣造铸֨ॐ显接फ 。Иپ३Ӏ模֨ҥ存Э置ગ空ऱ。析ӣչ置ગਫ工д化


62 | FOUNDRY-PLANET.COM | MODERN CASTING | CHINA FOUNDRY ASSOCIATION June 2016


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