THIN-WALL MOULDING | TECHNOLOGY
includes cold start-ups and in the event of acciden- tal overheating of the system. The technology involves the use of innovative spring design that pre-loads the nozzle to the manifold. The spring also absorbs any excess loads from thermal expansion for a highly consistent sealing force, which minimises the effect of plate deflection/bowing that would normally cause leakage in traditional systems. Mold-Masters has continued to introduce enhancements that expand the system’s applica- tion capabilities and enhance productivity. At K2019, these new ThinPAK releases included a Centi Size nozzle, which gives the hot runner system the ability to mould parts ranging from 15 to 500g. This includes everything from small IML containers to large pails. Also new was the Bi-Me- tallic C-Valve gate option, introduced primarily with Europe in mind and featuring an industry standard cut-out. The standard version has no Vespel gate insulator, and so eliminates a common wear item that can cause downtime, Mold-Masters says; however a version with the insulator is available for those customers who prefer to have it. A way to use thin-wall moulding to produce
relatively thick-walled cups and containers with excellent insulating properties and outstanding stiffness is moving from the prototype stage into commercial production. EcoCore, which is a derivative of the Coralfoam process originally developed by Peter Clarke, and which is available under licence from Bockatech (a company that he co-founded), is in fact already being used by Amaray to make 430ml multiple-use hot and cold drinks cups; and at the time of writing, two more companies, one in Europe and one in the USA, had also taken licences. Negotiations with more
Above: Mold- Masters’ BiM-C Valves with and without gate insulators
IMAGE: MOLD-MASTERS
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
