| 摘要 |
medicine; opening of glass ampoules. SUBSTANCE: scarifier is a plate article made of polymeric material chosen from the following group: aminoplasts, polyacrylates, polyformaldehydes or phenylones at the following ratio of components, mas. %: polymeric binder, 35-45; abrasive particles, 55-65. Initial components, polymeric binder in form of powder or grains and abrasive materials, are mixed and then are subjected to hot treatment by pressure at temperature of 100-120 C for 10-15 min. Scarifier, thus manufactured, is cheap, convenient in use, preserves its properties at cutting of ampoules, as abrasive particles are uniformly distributed in polymeric base, is easy to wash and permits sterilization. EFFECT: enlarged operating capabilities. 3 cl, 3 dwg |
