SU396161A1 - METHOD OF PREPARATION OF FORMING MASS ON THE BASIS OF PLASTER - Google Patents

METHOD OF PREPARATION OF FORMING MASS ON THE BASIS OF PLASTER

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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
Application number
SU1642614A
Other languages
Russian (ru)
Original Assignee
Л. О. Маркой , Ф. М. Богуславска
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Л. О. Маркой , Ф. М. Богуславска filed Critical Л. О. Маркой , Ф. М. Богуславска
Priority to SU1642614A priority Critical patent/SU396161A1/en
Application granted granted Critical
Publication of SU396161A1 publication Critical patent/SU396161A1/en

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  • 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.

SU1642614A 1971-04-05 1971-04-05 METHOD OF PREPARATION OF FORMING MASS ON THE BASIS OF PLASTER SU396161A1 (en)

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)

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