SU396161A1 - METHOD OF PREPARATION OF FORMING MASS ON THE BASIS OF PLASTER - Google Patents
METHOD OF PREPARATION OF FORMING MASS ON THE BASIS OF PLASTERInfo
- Publication number
- SU396161A1 SU396161A1 SU1642614A SU1642614A SU396161A1 SU 396161 A1 SU396161 A1 SU 396161A1 SU 1642614 A SU1642614 A SU 1642614A SU 1642614 A SU1642614 A SU 1642614A SU 396161 A1 SU396161 A1 SU 396161A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- gypsum
- basis
- preparation
- plaster
- forming mass
- Prior art date
Links
Landscapes
- Epoxy Resins (AREA)
- Mold Materials And Core Materials (AREA)
Description
1one
Изобретение относитс к области литейного производства, а именно к технологии приготовлени формовочных составов на основе гипса.The invention relates to the field of foundry, in particular, to the technology of preparation of molding compositions based on gypsum.
Известен способ упрочнени гипса водорастворимыми смолами, например мочевиноформальдегидной смолой.There is a method of strengthening gypsum with water-soluble resins, for example, a urea formaldehyde resin.
Однако мочевиноформальдегидна смола замедл ет схватывание гипса, поэтому в композицию необходимо вводить ускоритель отверждени , в частности хлористый алюминий, и, кроме того, гипс, упрочненный мочевиноформальдегидной смолой, имеет более низкие механические свойства.However, the urea-formaldehyde resin slows down the setting of gypsum, therefore a curing accelerator, in particular aluminum chloride, and, moreover, gypsum, strengthened by a urea-formaldehyde resin, must be introduced into the composition, has lower mechanical properties.
Цель изобретени - ускорение процесса упрочнени гипсовых форм.The purpose of the invention is to accelerate the process of hardening plaster molds.
Это достигаетс тем, что в состав формовочной массы на основе гипса в качестве водорастворимой синтетической смолы ввод т эпоксидную алифатическую смолу на основе триэтиленгликол в количестве 10 вес. ч. от веса сухого гипса.This is achieved by introducing epoxy aliphatic resin based on triethylene glycol in an amount of 10 wt.% Into the molding composition based on gypsum as a water-soluble synthetic resin. including the weight of dry gypsum.
Гипсовый раствор готов т обычным способом , затем в него ввод т водорастворимую эпоксидную алифатическую смолу на основе триэтиленгликол , например марки ТЭГ-1, в количестве 10 вес. ч. от веса cvxoro гипса иThe gypsum solution is prepared in the usual way, then a water-soluble triethylene glycol-based epoxy aliphatic resin, for example, TEG-1 brand, is introduced into it in an amount of 10 wt. hours from weight cvxoro gypsum and
один из известных аминых отвердителей, например полиэтиленполиамин. После тщательного перемешивани раствор готов к употреблению (формовке).one of the known amine hardeners, for example polyethylene polyamine. After thorough mixing, the solution is ready for use (molded).
Пресс-формы, изготовленные из полученной массы, выдерживают на воздухе в течение 24 час, после чего сушат при 40-50°С. Смола, отвержда сь в процессе схватывани и сушки гипса, придает пocлeднe y повышенные прочпостные свойства по всему объему.Molds made from the resulting mass, kept in air for 24 hours, then dried at 40-50 ° C. The resin, cured in the process of setting and drying of the gypsum, gives the y y the increased strength properties throughout the whole volume.
Способ обеспечивает повышенную чистоту поверхности пресс-форм и дает возмол ность получать более 1000 съемов с одной прессформы .The method provides improved surface cleanliness of the molds and gives an opportunity to get more than 1000 pullers from one mold.
Предмет изобретени Subject invention
Способ приготовлени формовочной массы на основе гипса, включаюгцпй введение в ее состав водорастворимой синтетической смолы, отличающийс тем, что, с целью ускорени процесса упрочнени гипсовых форм, в качестве водорастворимой синтетической смолы ввод т эпоксидную алифатическую смолу на основе триэтиленглпкол в количестве Ювес. ч. от веса сухого гипса.A method of preparing a molding material on the basis of gypsum, including the introduction of a water-soluble synthetic resin into its composition, characterized in that, in order to accelerate the strengthening of the gypsum forms, an epoxy aliphatic resin based on a triethylene glycol in a quantity of Yuves is introduced as a water-soluble synthetic resin. including the weight of dry gypsum.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1642614A SU396161A1 (en) | 1971-04-05 | 1971-04-05 | METHOD OF PREPARATION OF FORMING MASS ON THE BASIS OF PLASTER |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SU1642614A SU396161A1 (en) | 1971-04-05 | 1971-04-05 | METHOD OF PREPARATION OF FORMING MASS ON THE BASIS OF PLASTER |
Publications (1)
Publication Number | Publication Date |
---|---|
SU396161A1 true SU396161A1 (en) | 1973-08-29 |
Family
ID=20471264
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SU1642614A SU396161A1 (en) | 1971-04-05 | 1971-04-05 | METHOD OF PREPARATION OF FORMING MASS ON THE BASIS OF PLASTER |
Country Status (1)
Country | Link |
---|---|
SU (1) | SU396161A1 (en) |
-
1971
- 1971-04-05 SU SU1642614A patent/SU396161A1/en active
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