Визначення раціональної температури та тривалості теплової коагуляції склеєних кишкових оболонок

Abstract

Запропоновано заходи з формування теплокоагуляційного шва в технології склеєних кишкових оболонок із метою підвищення та стабільності їх міцнісних характеристик. Визначено діапазони раціональної температури та тривалості теплової коагуляції склеєних кишкових оболонок. Розроблено експериментальні установки для теплової коагуляції, дослідження міцності шва та зшивання кишкових оболонок шляхом теплової коагуляції вихідної сировини.

Works are devoted to the glued natural casings technology improvement, in which intestinal strips number and location increasing, elasticity providing through dehumidification are proposed for strength increasing. Data are known about glued strength of casings are subjected to additional vegetable tanning. At the same time, the problem of stable strong adhesion creating in the technology of glued natural casings is unsolved. Additional thermal coagulation is proposed to use; it creates an additional reinforcing seam and increases the resistance to stratification of casing films with taking into account the need to eliminate the main disadvantage of glued natural casings, which is their stratification in the aquatic environment. The purpose of the study is glued natural casings samples rational temperature and thermal coagulation duration determination, under which sufficient strength of the additional reinforcing seam for their further use achieves. The ranges from which it is needed to choose the rational duration and thermal coagulation temperature of glued natural casings are determined on the base of the results of experimental data processing and analysis which are obtained during the thermal coagulation seam strength study. Such coagulation duration ranges, which are determined graphically, are: for the temperature of working elements 150 °С – 10–12 s; for the working elements temperature of 160 °С – 8–10 s; for the working elements temperature of 170 °С – 5–7 s; for the working elements temperature of 180 °С – 5–7 s. The buckling load values for the above ranges of thermal coagulation duration are: for the working elements temperature of 150 °С – 12–14 N/m; for the working elements temperature of 160 °С – 15–16 N/m; for the working elements temperature of 170 °С – 14,5–15,5 N/m; for the working elements temperature of 180 °С – 15–16 N/m. As it can be seen from the above results, the buckling load under thermal coagulation seam use increases compared to the control sample by 4.0–5.5 times. The experimental plant for natural casings samples thermal coagulation is developed. The experimental plant is developed for seam is obtained by natural casings samples thermal coagulation, strength study. The experimental plant for natural casings stitching by thermal coagulation of raw material is developed.