Project-Based Work
posted by: Paul Robbins
Castool leads the industry in the development of new technology for shot sleeve temperature control. A thermal control unit is used to manage the temperature and flow rate of the medium (water or oil) being used to control the shot sleeve temperatures.
- Castool offers an effective, economical and re-useable Pour End Cooling Jacket
Shot Sleeve Pour End Cooling Jacket
Shot Sleeve System
Castool is the only global supplier to the die-cast industry that can provide both a complete line of shot end products, and trained experienced technicians to help the die-caster get maximum productivity from his system. This service is available wherever Castool products are sold.
Single sourcing and the benefits of undivided responsibility distance a complete Castool shot end tooling package from all others.
For maximum operating life, the plunger tip must move smoothly through a round,
straight shot sleeve, with a clearance of no more than .004 in(.102mm). If the
clearance becomes more than this, the alloy may penetrate as flash, or blow-by. This will immediately cause excessive wear. If the gap becomes much less than .004in (.102mm) there is a danger of interference and inconsistent shots. Also, a shot sleeve may become much hotter at the bottom under the pour hole, than at the top in front of the hole. This can cause it to become oval instead of round, and slightly bowed instead of straight. Either of these conditions will result in premature wear.
For small diameter shot sleeves, control of thermal expansion is seldom necessary. For medium diameter sleeves, Castool offers an effective, economical and re-useable Pour End Cooling Jacket that puts cooling where it is needed most ... below the pour spout. A thermocouple is used to activate a controller which increases or reduces the flow of cooling water though the jacket.
Large diameter shot sleeves will always benefit from complete thermal control. In the Castool sleeve, a series of gun-drilled holes are positioned along the length of the shot sleeve under the pour spout, and are connected to gun drilled holes around the die end of the sleeve. A thermal control unit is used to manage the temperature and flow rate of the medium (water or oil) being used to control the shot sleeve tempratures