Plunger Tips is a critical part of aluminium Die-casting process. Plunger tips are used to push molten zinc and aluminium through a polished steel sleeve into die cavities, to form intricate parts. Beryllium Copper Plunger Tips have been the standard of the Die Casting Industry for the past 30 years. Beryllium Copper Plunger Tips generally do not last much longer than 9,000 shots under the best conditions and with a relatively small diameter. Above all Copper Beryllium material itself is highly expensive and pose health concerns. CI and tool steels plungers have been used to overcome the disadvantages of cost of CuBe Plungers but lack performance. Steel Plungers are relatively inexpensive but wear out more frequently and have to be replaced regularly, thereby increasing downtime and poor productivity.
QTi Plunger manufactured from a unique Copper Titanium (QTi 140 Alloy) which provides High strength and hardness with extended performance. It has good thermal conductivity characteristics, which allows to cool the tip quickly for next shot, thereby reducing cycle times.
QTi Alloys Plungers are estimated to have life twice as much as from CuBe plungers. These plungers and less expensive as compared to CuBe plungers. Hence they provide a perfect balance of performance to cost. Below is a chart that compares the average life of plunger made of different materials.
Advantages of QTi Plungers
- High Strength
- Good Hardness
- Beryllium Free
- Good thermal Conductivity