• 专利标题:   Aluminum-beryllium alloy precision casting release agent comprises deionized water, sodium silicate, alumina, silica, sodium dihydrogen phosphate, sodium monohydrogen phosphate, calcium chloride, graphene oxide, and sodium tetraborate.
  • 专利号:   CN109014025-A
  • 发明人:   YU L
  • 专利权人:   CHINA ACAD ENG PHYSICS MATERIAL INST
  • 国际专利分类:   B22C003/00
  • 专利详细信息:   CN109014025-A 18 Dec 2018 B22C-003/00 201917 Pages: 8 Chinese
  • 申请详细信息:   CN109014025-A CN11107631 21 Sep 2018
  • 优先权号:   CN11107631

▎ 摘  要

NOVELTY - An aluminum-beryllium alloy precision casting release agent comprises 70-80 pts. wt. deionized water, 4.7-6 pts. wt. sodium silicate, 10-13 pts. wt. alumina, 2-3.5 pts. wt. silica, 0.8-1.3 pts. wt. sodium dihydrogen phosphate, 0.4-0.7 pt. wt. sodium monohydrogen phosphate, 1.5-2.5 pts. wt. calcium chloride, 0.8-1.2 pts. wt. graphene oxide, and 1-1.8 pts. wt. sodium tetraborate. USE - Aluminum-beryllium alloy precision casting release agent. ADVANTAGE - The method is simple and has non-toxic and harmless raw materials. The release agent is easily and quickly to demold, can be stored for a long time and effectively realize the isolation protection of the aluminum-beryllium alloy and the mold shell wall, does not affect the surface quality of alloy parts and mold shells, greatly improves work efficiency, and reduces alloy casting cost. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the casting release agent comprising pre-drying all solid materials; dissolving sodium silicate, sodium dihydrogen phosphate and sodium monohydrogen phosphate in deionized water, adding calcium chloride and sodium tetraborate, and uniformly stirring to completely dissolve; adding with alumina, silica, and graphene oxide, uniformly stirring, dispersing, and standing; and heating with stirring to 65-80 degrees C for greater than or equal to 0.5 hours, standing, and cooling to room temperature.