Core Sand Additives - S&B Industrial Minerals GmbH

• • • • • • • • • • ANTRAPEX • • • • ® • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •Solutions for FoundriesCore Sand Additives

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •Advantages in AbundanceANTRAPEX ® , with double benefits– in the core and in the moulding materialWith ANTRAPEX ® , S&B is ableto offer the foundry industry acore sand additiveof the highest qualityThe ANTRAPEX ® series of application-proven core sand additivespositively influence both the core and the bentonite-bonded mouldingmaterial. The additive is mixed with the core sand and thuscontributes to reducing expansion and penetration defects. Aftercore breakdown, ANTRAPEX ® passes into the moulding materialwhere it has a positive effect on the casting surface and sandstability. The amount of adhering moulding sand is also minimised.Double benefits: The effects of ANTRAPEX ®The doubly positive effect of ANTRAPEX ® gives it a significant lead over conventionalcore sand additives.CastingReduction in expansion andpenetration defects in the coreHighly effective lustrous carbonformer in the moulding sandThe productsANTRAPEX ® P is a blend of synthetic organic and inorganic components.The core sand additive has been developed by S&B especiallyfor the PUR Cold Box process.ANTRAPEX ® M is a pure mineral-based inorganic additive. It is applicablefor the PUR Cold Box process as well as for the core productionin the Hot Box and Warm Box processes.The S&B service includes customer-specific product variants ofANTRAPEX ® . This means that we offer modified additives individuallyaligned to the core making requirements of the foundry concerned.Your benefitsANTRAPEX ® facilitates the production of high-quality castings:• Casting surfaces of near-perfect finish• Significantly reduced expense in terms of finishing work and corecoating operations• Excellent compatibility with the moulding sand after core breakdown• Good recyclability, minimum pollution burden• Significantly reduced gas formation in the core compared with additivesbased on wood flour3

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •PropertiesWhy ANTRAPEX ® ?Casting without ANTRAPEX ® can cause finningand veiningThe use of ANTRAPEX ® in the core sandreliably eliminates the likelihood of finningand veining!ANTRAPEX ®• ANTRAPEX ® is non-porous and usually coarse-grained, thereby affectingthe core strength only marginally• Following casting, compressive stresses in the core are reduced asa result of which expansion defects such as finning and veining aresignificantly reduced or completely avoided• The organic components improve the finish of the casting. Yourbenefit: smooth surfaces and an appreciable reduction in penetration• The processability (bench-life) of blends with ANTRAPEX ® is veryhigh guaranteeing a stable process of core production• The flowability of core sand remains constant or partly improvesdue to the addition of ANTRAPEX ®• The need for coating is reduced and may even be completely eliminated• ANTRAPEX ® has an unlimited shelf life and is not classified eitheras a hazardous substance or as dangerous good• After core breakdown, ANTRAPEX ® P in the moulding sand acts asa low volatility lustrous carbon formerProperties of ANTRAPEX ®Economic efficiencyEnvironmentalfriendliness■ ANTRAPEX ® M ■ ANTRAPEX ® P ■ Wood flour* ■ No additive* impregnatedInfluence ongreen sandResistance to expansion defectsCore sand flowabilityCasting surfaceBendingstrengthMinimumgas formationAnnotation to the chart:• Core sand flowability – the granular structure of ANTRAPEX ® allows fora good flowability during core shooting• Environmental friendliness – Use of ANTRAPEX ® keeps gas formation,odour and emissions at very low levels• Bending strength – Core sand blends with ANTRAPEX ® can be easilyprocessed (good bench-life), and thereby produced cores have highstrength• Casting surface – ANTRAPEX ® helps avoid not only veining defectsbut partly also the use of core coating• Influence on green sand system – ANTRAPEX ® P is the only additivewith an additional positive effect – after core breakdown it acts asa low volatility lustrous carbon former• Economic efficiency – ANTRAPEX ® helps achieve a very good priceperformanceratio4

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •QualityOur raw materials are world classQuality assurance has the highestpriority at S&BWe select our raw materials in accordance with the requirements ofour customers – with the application as the one and only criterion.At the forefront of our concerns are always the quality and suitabilityof the core sand additive, plus delivery reliability. We can accessvirtually every source available – our procurement market is theworld market!Professional productionComputer-controlled grinding, mixing, compacting and grading systemsensure a permanently high level of product homogeneity and quality.The individual process stages read as follows:1. Crushing and grinding using the very latest technology2. Gentle drying to protect both the product and the environment3. Homogenisation in computer-aided mixing systems4. Compaction for specific performance optimisation5. Sieving in various particle sizes6. Despatch as bulk material, in Big Bags, in sacks or in containers.Transport by truck, rail or ship7. Just-in-time deliveryReducing costs the creative wayThe use of ANTRAPEX ® core sand additives helps to ensure the avoidanceof expansion defects. Efforts in finishing work and end control aretherefore considerably reduced. By switching from additives containingwood flour to ANTRAPEX ® it is also possible to reduce the content ofbinder required up to 15 %, while at the same time strength levelsare kept constant and flowability is improved. There are also costadvantages to be derived as a result of the reduced amount of coatingrequired. The unique compatibility of ANTRAPEX ® with bentonitebondedmoulding material systems opens up significant potential forfurther savings.Assured quality and safe processesStrict quality management at S&B is assured by a production processgoverned by the highest possible standards. All products are consistentlymanufactured in accordance with stringent quality managementrequirements and each production stage is continuously monitoredusing advanced test and inspection techniques − from raw materialto individually tailored end product. Documentary evidence is providedwith all consignments in the form of analysis certificates. Our qualityand process management activities are aligned to the requirements ofDIN EN ISO 9001. Compliance is ensured by external certification.Looking after the environmentOur additives are environmentally friendly. The emission values ofANTRAPEX ® additives in the core sand, measured under normal castingconditions, differ only marginally from normal levels, in contrastto impregnated wood flours.S&B is commited to improving its operational environmental protectionbeyond the statutory requirements in accordance with DIN ISO14001.6

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •Any questions?The specialists at S&B will be glad to provide you with any furtherinformation and advice you require – including on matters relating tosand binders and lustrous carbon formers. Give us a call, send us afax or write to us.• • • • • • • • • • • • • • • • • • • • Phone: +49 (0) 23 65 - 8 04-0• • • • • • • • • • • • • • • • • • • • Fax: +49 (0) 23 65 - 8 04-211• • • • • • • • • • • • • • • • • • • •info@ikominerals.com7

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • •S&B – moulding its service to your needs …... for example, for the problem-free manufacture of perfectly shapedcastings. Defects are conspicuous by their absence. Core sand additivesfrom S&B can be specifically adapted to each individual bindersystem and application. And with a service aligned to your needs:individual and comprehensive!S&B Industrial Minerals GmbHSchmielenfeldstr. 7845772 Marl, GermanyTel: +49 (0) 23 65-8 04-0Fax: +49 (0) 23 65-8 04-211Internet: www.ikominerals.comE-mail: info@ikominerals.com© 2007 S&BS&B Industrial Minerals SARLRue du doris44350 Montoir-de-Bretagne, FranceTel: +33 (0) 240 458 900Fax: +33 (0) 240 458 700Internet: www.ikominerals.frE-mail: contact@ikominerals.fr