Advantages of two-stage casting impregnation explained
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Latest technologies on show in Indonesia
At this autumn ’ s Indometal trade show from 25 to 27 October in Jakarta , Indonesia , ASK Chemicals will display its metallurgical portfolio in addition to its latest offerings for the local market . Known for its exceptional quality and almost fully controllable curing reactions , the PUNB binder system has long been the standard in no-bake excellence . When used in an automated production line ( roller loop or turntable ), PEP SET can produce fully cured moulds with minimum cycle times . Speed , application flexibility and overall ease of use make the system ideal for satisfying different core and mouldmaking requirements . Yield and productivity can be
Sculptor creates masterpieces from meteorites
Castings Technology International has overcome a series of challenges to help a leading UK artist produce his latest sculpture using metal from a meteorite . The company specialises in helping foundries solve problems and improve production and supplies the high value manufacturing sector with low volume , precision steel , superalloy and titanium castings . It has also helped a number of artists with challenging projects , including London-based Alexander de Cadenet , whose works include much sought after sculptures made from increased with EXACTCAST mini riser technology . Frequently , fibre sleeves are used in steel casting applications . In addition to fibres , conventional sleeves contain rice husks that may lead to casting defects . Moreover , these slurry sleeves do not utilise their full volume for counteracting shrinkage defects , with the result that the effective yield is only 30 %. The remaining 70 % of the volume is used to maintain the heat in the 30 % of the molten metal needed for feeding . This is where cold box bonded EXACTCAST KMV mini risers come in , offering a fibre-free solution for steel casting . The volume at the riser can be reduced without a loss of feeding performance . The exothermic compound replaces the nonfeeding material and maintains the
EXACTCAST mini risers offer clear advantages over natural sand and exothermic feeder caps .
The Serpent sculpture by Alexander de Cadenet .
meteorites . Mr de Cadenet uses meteorites because their age and origins in the vastness of outer space contrasts sharply with the transient nature of his earthbound subjects and reflects the way early human cultures used them to make sacred artefacts . According to Cti ’ s Will Jeffs , the metal is about 6 % nickel and the balance is iron . The carbon content is low but it has a very high sulphur content , which depresses the melting point and makes the molten metal very difficult to pour , because it is reacting all the time . “ Alex is very keen that we don ’ t alter the composition of the metal , so we had to design a special deoxidisation process and dribble liquid argon to create a protective bath of inert gas . The sulphur can make the metal brittle and difficult to work with , so we have to take measures to overcome that too , while retaining the fine detail .” Cti combines the ancient lost wax process and its Replicast technology to make the ceramic mould , into which the molten meteorite is poured . Each piece cast is metal in its molten state . The KMV mini risers , therefore , present an efficient and reliable alternative to conventional slurry sleeves . Also promoted in Jakarta will be the ASK Chemicals release agent BENTOGLISS 121 , which is particularly suited to the South East Asian market , which hosts a considerable number of green sand foundries . The demoulding process is provided with effective support through the use of modern and highly effective release agents . ASK Chemicals offers a solvent-free release agent , BENTOGLISS 121 , principally for bentonite-bound moulds . Without the need for chemical additives , the release agent minimises the impact of environmentally hazardous , volatile organic compounds ( VOCs ). Using this release agent also facilitates the moulding process by significantly reducing adhesive forces between the model and mould walls . This , in turn , reduces wear and tear on moulding tools and contributes to their greater durability . Overall , maintenance costs for the models are reduced many times over . In addition , UDICELL filter products will be displayed . www . ask-chemicals . com
numbered and documented , with certificates of origin and authenticity , guaranteeing the material came from a specific meteorite and saying when it was cast . www . castings-technology . com
General Kinematics opens Bangalore office
General Kinematics , manufacturer of custom-engineered vibratory process equipment , has moved its Indian operations to premises in Bangalore . Since establishing a liaison office in New Delhi eight years ago , General Kinematics India has established a solid reputation as a solutions provider , with the ability to solve a variety of industry process challenges . The recently formed company General Kinematics India Private Ltd will primarily cater to customers in the subcontinent by supplying spare parts , automation and service support . www . generalkinematics . com
Advantages of two-stage casting impregnation explained
Bob Remler , VP Sales , Ultraseal America Inc .
The advantages of two-stage casting impregnation as a routine quality enhancement that ensures cast metal parts remain leak-free were explained at the Mexico Foundry Congress 2016 by Ultraseal America Inc . Bob Remler , VP Sales , outlined the transformation of casting impregnation over the years when he addressed an audience at the conference in Queretaro . The latest innovation in casting impregnation , the two-stage R-FL-Duplex Plus machine can process up to 45 units / h and is easily integrated into a modern , just-in-time production line , he explained to the assembled foundry audience . Savings on both staff costs and overheads can be made because the front-loading machine , which is fully automated with robotics , requires no manual handling and has a far smaller factory footprint than conventional three-stage machines . Moreover , it delivers more environmental benefits , using far less water , always an advantage in areas where water is in short supply . This breakthrough is achieved by innovative chemistry developed by Ultraseal . This allows components with excess liquid sealant to go straight into the hot cure tank , the final stage of the process , without having to be washed in a cold wash module first . Excess sealant is then recycled straight from the hot cure tank , leaving clean hot water in the tank ready for the next batch of parts . Mr Remler confirmed there has been a lot of interest in the R-FL- Duplex . Casting impregnation is a reliable and permanent solution that ensures cast metal parts , even if they have the microscopic holes that comprise porosity , remain leak-free under pressure . www . ultraseal . co . uk
Cast Metal & Diecasting Times July / August 2016