The distortion of core driers causes large numbers of cast iron radiators to be scrapped,sometimes the rate of spoiled products is up to 80%.

• 成型烘干器的变形,造成柱型暖气片大批报废,有时高达80%25,通过八项预防变形的措施,消除了成型烘干器的变形,使铸件合格率稳定在85%25,有时达到98%25。