| 摘要 |
FIELD: process engineering. ^ SUBSTANCE: invention relates to metallurgy. Proposed method comprises injecting moulding mix into moulding model to produce injection mould and solidifying said mould by gaseous sulphur dioxide. Moulding mix contains 90 to 99 parts by weight of moulding filler and moulding mass binder. Binder contains per 100 parts by weight of binder: 20 to 70 parts by weight of epoxy resin, 5 to 50 parts by weight of acrylate, at least 3.0 % by wt of organofunctional silane and effective amount of peroxide. ^ EFFECT: higher strength of mix. ^ 10 cl, 1 tbl, 2 dwg, 5 ex |
