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product news/產品新聞


water and produces less waste-water than conventional cast- ing impregnation processes. Offering both cost and environ- mental benefits, recycling sealant technology is particularly suited for territories where water is scarce or regulations about the disposal of waste water are strict. “Te R-FL-Duplex+ is a truly transformational machine


and we have had a lot of interest in it from manufacturers in the automotive supply chain,” said Stephen Hynes, marketing director, Ultraseal International. “It combines our acknowl- edged leadership in recycling sealant technology with our substantial experience in designing fully automated casting impregnation equipment to give unsurpassed results. Casting impregnation is an important post-casting pro-


cess for diecasters because it offers a reliable and permanent solution to the problem of porosity – microscopic holes – in cast metal parts that can cause a part to leak. Traditionally, impregnation is carried out in three stages:


first, parts are placed in an autoclave and a vacuum applied that will draw air out of any porosity before a liquid sealant is introduced; second, parts are washed in a cold wash cycle; and finally they are moved to the hot cure tank where the heat transforms the liquid within the porosity into a solid, flexible plastic. Scientists at Ultraseal International have revolutionized the design and eliminated one of the three stages of the casting impregnation process entirely without in any way compromising the quality of impregnation process. By eliminating the cold wash stage of the process, and


recycling sealant and water from the hot cure stage, the R- FL-Duplex+, produces zero aqueous effluent and requires no downtime for routine water changes. “Te R-FL-Duplex+ has a new hot cure recycling pro-


cess,” said Kevin Siviter, technical manager, Ultraseal Inter- national. “Tere is no wash station: parts go straight from the autoclave to the hot cure tank. It is a continuous, real-time process that is very robust and offers all the advantages of our recycling sealant technology. “Customers will get the same impregnation quality as


they would achieve with a three-module machine in regard to sealability and cleanliness but the machine would take up one-third less space, less energy is required to run it and it has increased production throughput.” 


减少化学品和水的使用,产出的废水比传统铸件浸渗 工艺少。回收密封剂技术兼具成本和环境效益,尤其 适合水资源匮乏或者严格管制废水处理的地区。 “R-FL-Duplex+是一款真正意义上的转型 设备,汽车供应链的制造商表示非常感兴趣” ,Ultraseal International公司市场总监Stephen Hynes说道。“它象征着我们在回收密封剂技术领 域处于公认的领先地位,并且在设计全自动铸件浸 渗设备方面拥有最丰富的经验,能够取得无与伦比 的成果。”


铸件浸渗是压铸生产中重要的铸件后处理工艺,因 为它能够为导致部件泄漏的铸件的多孔(微孔)问题 提出可靠且永久的解决方案。


传统上,浸渗分3个阶段实施:首先,将铸件放在 高压釜内,实现真空状态以抽出孔内的空气,然后采 用液态密封剂;第二,铸件在冷却液中循环冲洗;最 后,将其移至热处理罐内,通过加热将使孔内的液体 变成固态软塑料。 Ultraseal International公司的科学家彻底改变了 设计,完全省掉铸件浸渗工艺3个阶段中的1个阶段, 丝毫不影响浸渗工艺的质量。


R-FL-Duplex+设备省掉了冷态冲洗阶段,在热处 理阶段回收密封剂和水,因为没有任何水或密封剂流 出,所以不需要停机进行定期换水操作。 “R-FL-Duplex+ 采用新的热处理回收工艺” ,Ultraseal International公司技术经理Kevin Siv- iter指出。“没有冲洗站:部件直接从高压釜进入热 处理罐。这是一种持续的实时工艺,非常稳固,具备 回收密封剂技术的所有优点。”


“关于密封性和清洁度,客户可获得与原来3阶 段设备相同的浸渗质量,但是机器所占的空间节省了 1/3,能耗降低,效率提高。” 


Achieving Die Spraying Stability 实现压铸模具喷涂稳定性


High productivity is important in an increasingly tight


world market. Te requirement for maximum die produc- tion with unchanging die quality, however, usually can be achieved only if the whole casting process runs without in- terruption and the individual parameters are consistent to a high degree. Automatic die spraying is one of the most important parameters. Te spraying process should be completed quickly in order to save time and be as efficient as possible, i.e. apply the minimum amount of separating agent in order to decrease the total production costs (Fig.


全球市场日益供不应求的情况下,提高生产率变得非 常重要。然而只有当整个铸造流程不间断运行并且各参 数高度一致时,才能满足不降低质量并最大限度提高压 铸生产率的要求。模具自动喷涂也是其中一个最重要的 参数。应当快速完成喷涂作业,以节省时间,并且尽可 能高效,即喷涂最少量的脱模剂,降低生产总成本(图1 )。模具喷涂的主要任务是: • 喷涂脱模剂。


December 2015 FOUNDRY-PLANET.COM | MODERN CASTING | CHINA FOUNDRY ASSOCIATION | 79


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