摘要
分析了覆膜砂生产五节距齿轨过程中的工艺难点，铸件在造型时砂箱倾斜角度为（20±5）°，浇注时负压值为（0．04±0．01）MPa，浇注温度为（1540±10）℃，点注2～3次，撒保温剂。保压时间为（300±5）s，泄压后冷却5 h后打箱，铸件的外观及内部品质可以达到最优。
The technological probelems in production of five picth gear rail by coated resin sand were de-scribed.Sand box is tilted to （20±5）°during moulding,and pouring was conducted at （1 540±10）℃with pressure of （0.04±0.01）MPa and 2-3 pit pouring as well as heat preservation agent treatment. Through holding pressure for （300±5）s and cooling for 5 hours after pressure-exhausting and then sha-king out,the appearance and inner quality of the gear rail parts exhibit satisfactory.
出处
《特种铸造及有色合金》
CAS
CSCD
北大核心
2015年第5期559-560,共2页
Special Casting & Nonferrous Alloys
关键词
覆膜砂
五节距齿轨
负压浇注
Coated Resin Sand
Five Pitch Gear Rail
Negative Pressure Pouring
作者简介
冯义宏，男，1964年出生，研究员级高级工程师，电话：0472—3386220，Email：bfzgcasting@sina．com
通信作者：云雪峰，男，1982年出生，工程师，电话：0472—3384211．15847698443，E-mail：254867263@qq．com
