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Modulated machine design

Modulated machine design. for core production with inorganic binders. Inorganic binders. Main Advantages Emission and odor free for humanity and environment , Compliance with future environmental laws , Reduction of casting failures caused by core gas,

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Modulated machine design

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  1. Modulated machine design for core production with inorganic binders

  2. Inorganic binders • Main Advantages • Emission andodorfreeforhumanityandenvironment, • Compliance withfuture environmental laws, • Reductionofcastingfailurescausedbycore gas, • Condensatedeposit on themoulddroporratherdecreasesignificantly, therebyincrease in productivityandcostreduction in themaintenance, • Decoringability due toadjustablewatersoluability, • Reductionofdisposalcostsoftheusedsand, • Costsavings in thefieldofexhausttechniqueandscrubbers • Higher uptimesofcoreboxesbased on lowercleaning time • Etc. 2

  3. Inorganicbinder Organicbindersburn Inorganic binders are inert 3

  4. Inorganic binder Organicbindersburn, condensates contaminates the mold Withinorganicbindersthemoldis clean 4

  5. Basic Facts • Characteristicsofinorganicbinders • Hardeningphysicallyandchemically • Mostlyphysicalinsteadofchemicalreaction • Characteristics in machineengineering • Opportunitytoheattoolings • Opportunityforhotairflushing 5

  6. Green-Line-Concept 6

  7. Comparison Coldbox/HotBox/Inorganic 7

  8. Challenges and Solutions Challenge: Avoid dry andhardeningofcoresand in theshootingnozzles due to dry andhotambientatmosphere. ↓ Solutions: Coolingoftheshootplateandthenozzlesasknow from hotboxsystemorshellcore. ↓ Problem: In differencetohotboxsystemswhereinhardeningstartsbytemperatureonly, inorganicsystem will dry out atthenozzles‘ tipevenwhencoolingthenozzle. ↓ Solutions: Moisturingoftheambientareaaroundtheseshootingnozzlesbywater spray. ↓ Problem: Waterdroplets will condensateatthe cool nozzles, waterdropletswashawaybinderskin from thesandgrainsandcausedefects in thecoresurfaceandbody. ↓ Solutions: Water not tobesprayed in asdroplets but ascoldvapor. The evaporationofthewater will bedonebyultrasonicgenerator (systempatendedby Laempe). 8

  9. Technical Solutions Ultra sonicvaporingofshootingnozzles 9

  10. Technical Solutions Ultra sonicvaporingofshootingnozzles 10

  11. Challenges and Solutions Challenge: Avoid dry andhardeningofcoresand in thesandhopperabovethemachineand in theshootingunit after theshot. ↓ Solutions: Moisturingoftheairabovethesandlevelbywater spray andcoveringofthehopper top. ↓ Problem: Waterdroplets will condensateatthe cool nozzles, waterdropletswashawaybinderskin from thesandgrainsandcausedefects in thecoresurfaceandbody. ↓ Solutions: Water not tobesprayed in asdroplets but ascoldvapor. The evaporationofthewater will bedonebyultrasonicgenerator (systempatendedby Laempe). 11

  12. Kernschießmaschinentechnik Solution Ultra sonicvaporingofshootingunit

  13. Kernschießmaschinentechnik Solution Ultra sonicvaporingofshootingunit

  14. Kernschießmaschinentechnik Solution Ultra sonicvaporingofshootingunit

  15. Kernschießmaschinentechnik Challenges and Solutions Challenge: Due tothelowerfloabilityofcertainbindersanddependingtothe design oftheshootplate, sandchannelsmaybeformed in theshootingsystem. ↓ Solutions: Usingof a „bridgebreaker“(systempatendedby Laempe). ↓ Side effect: Usingthebridgebreaker will also deliverinformationsaboutthesandlevel in theshootingunitand so optimizesanddosing – evenunder such conditionswhereconventionalopticalsystems will not work. Forming of „sand channels“

  16. Kernschießmaschinentechnik Challenges and Solutions Challenge: (Most) Inorganicbindersrequire warm orhotcoreboxes. Coreboxesneedtobeheatedupto 200°C (392°F)

  17. Kernschießmaschinentechnik Challenges and Solutions • Test equipment: • Speciallyadaptedcoreshooter type LBB10 • 10 l shootingvolume • Equippedtooperated all knownbinderprocesses • Mixer directlyinstalledabovesandshutter • Ultra sonicmoisturingsystemforshootingsystemandshootplate

  18. Kernschießmaschinentechnik Challenges and Solutions Heatingequipment: Oiltemperatureunitmake ROBOMAT andsteamgeneratormake CERTUSS. Bothsystemswithheatingcapacityof 30 kW.

  19. Kernschießmaschinentechnik Challenges and Solutions Comparissonofpipingsystem: Oilpipeswithsupplylineand back lineforeachcircuit. Steamsystemwithsupplylineforeachcircuitandcommon back line.

  20. Not onlyforinorganicbondedcores… Special Solutions Challenge: Identificationofcastings in relationtocoreproductiondata, likeshift, binderorsandbatch, etc. even after batch-independentcorestorage. ↓ Solutions: Markingthecoresby an inkprinterdirectly after productionandengraving a codebylaserintothesandcore.

  21. Kernbearbeitung – Lasern/Bedrucken Special Solutions

  22. Contact Thankyouforyourattention! Let‘sworktogethertokeepourworldforthenextgenerations. Laempe & Mössner GmbH • Tel: + 49 (0) 7622 / 680 0 • Fax: +49 (0) 7622 / 680 391 • Email: info@laempe.com • Laempe & Mössner GmbH • Schopfheim • Grienmatt 32 • D - 79650 Schopfheim 22

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