search.noResults

search.searching

dataCollection.invalidEmail
note.createNoteMessage

search.noResults

search.searching

orderForm.title

orderForm.productCode
orderForm.description
orderForm.quantity
orderForm.itemPrice
orderForm.price
orderForm.totalPrice
orderForm.deliveryDetails.billingAddress
orderForm.deliveryDetails.deliveryAddress
orderForm.noItems
HOT RUNNERS | MOULDS


gate applications, including high temperature plastics such as PEEK, LCP, PSU, PEI and PPS. Processing these materials requires high melt temperatures of up to 450° C in the hot runner and mould temperatures of over 200° C. Black Box and iVG hot runner systems deliver uninter- rupted performance under extreme conditions without cooling or wear. The result is a significant increase in reliability and mould uptime. The company has also developed the Rheo-


Pro Black Box valve gate cylinder that operates without elastomeric seals or lubricants, delivering continuous operation at temperatures of 450 °C without cooling or maintenance. MHS says that the new technology outperforms electric, hydraulic, and conventional pneumatic valve gate hot runners in a wide range of applications. In addition, the Rheo-Pro iVG is an internally air actuated valve gate system with no external cylinder, seals, lubricant and cylinder cooling. It is claimed to be ideal for ultra-compact mould designs. The iVG performs well under the most demanding processing conditions. Unlike electric valve gates and conven- tional pneumatic cylinders that can fail in extremely hot operating environments, the internal valve gate performs at temperatures up to 400 °C. Schwing Technologies has developed a hot runner cleaning system for gentle thermal removal of glass fibre reinforced polyamide, as well as large and heavily overmoulded components in the automotive industry. The company says that glass fibre reinforced polyamide presents a great challenge in all hot runner systems. Contamination and blockages are a significant problem and machine downtime is a top priority. The Maxiclean pyrolysis system is claimed to clean overmoulded hot runner distributors with complicated geom- etries and glass fibre components reliably, safely and gently, without leaving any polymer residues, carbon remnants or inorganic contaminants. Other advantages for manufacturers in the automotive industry include the ability to clean inside pores and significantly prolong service life of the equip- ment. Cleaning is flexible, safe, effective, and environmentally friendly. The precisely controlled cleaning process takes place in an external gas-heated chamber with special hot air routing for optimal temperature distribution. The automatic process control moni- tors the development of low temperature carboni- sation gases and ensures short cleaning times. Inorganic residues are removed using an appropri- ate post-treatment method. Maxiclean works without wastewater and has a separate after-burner, which completely burns the carbonisation gases


www.injectionworld.com


above 800 °C and discharges them through an exhaust chimney. Cold Jet has introduced shaved dry ice MicroPar- ticle technology to clean moulds at operating temperature and in place that does not generate any secondary waste or leave any residue behind. MicroParticle technology shaves dry ice into sugar-sized particles. This allows more media to strike the surface per second than traditional methods, which results in an increased coverage area and a faster and more even clean. The com- pany says that particles can enter the hardest-to- reach places in complex geometry moulds, includ- ing vents, and are small and delicate enough for a thorough clean without damaging the mould surface or changing dimensions. The i3 MicroClean utilises MicroParticle technol- ogy and is a lightweight, compact, single-hose low pressure blasting system, which Cold Jet says uses less compressed air and dry ice and is quieter than similar machines. According to the company, MicroClean extends the running time of moulds by 200-500%, and saves moulds from cooling down and being removed, disassembled, reassembled, replaced and heated back up again.


CLICK ON THE LINKS FOR MORE INFORMATION: � www.milacron.com � www.hrsflow.com � www.hasco.com � www.sipasolutions.com � www.ewikon.com � www.sise-plastics.com � www.i-mold.dewww.mhs-hotrunners.com � www.schwing-technologies.com � www.coldjet.com


November/December 2018 | INJECTION WORLD 43


Above: Schwing Technologies says its Maxiclean pyrolysis system can clean over- moulded hot runner


distributors with compli- cated geom- etries and glass fibre compo- nents


Page 1  |  Page 2  |  Page 3  |  Page 4  |  Page 5  |  Page 6  |  Page 7  |  Page 8  |  Page 9  |  Page 10  |  Page 11  |  Page 12  |  Page 13  |  Page 14  |  Page 15  |  Page 16  |  Page 17  |  Page 18  |  Page 19  |  Page 20  |  Page 21  |  Page 22  |  Page 23  |  Page 24  |  Page 25  |  Page 26  |  Page 27  |  Page 28  |  Page 29  |  Page 30  |  Page 31  |  Page 32  |  Page 33  |  Page 34  |  Page 35  |  Page 36  |  Page 37  |  Page 38  |  Page 39  |  Page 40  |  Page 41  |  Page 42  |  Page 43  |  Page 44  |  Page 45  |  Page 46  |  Page 47  |  Page 48  |  Page 49  |  Page 50  |  Page 51  |  Page 52  |  Page 53  |  Page 54  |  Page 55  |  Page 56  |  Page 57  |  Page 58  |  Page 59  |  Page 60  |  Page 61  |  Page 62  |  Page 63  |  Page 64  |  Page 65  |  Page 66  |  Page 67  |  Page 68  |  Page 69  |  Page 70  |  Page 71  |  Page 72  |  Page 73  |  Page 74  |  Page 75  |  Page 76  |  Page 77  |  Page 78  |  Page 79  |  Page 80  |  Page 81