Production of Capillary Pipe for Single-Use Medical Syringes

被引：0
|
作者：
Yur’ev B.P. [1 ]
Dudko V.A. [1 ]
Selyanin G.P. [1 ]
机构：
[1] Yeltsin Ural Federal University, Yekaterinburg
来源：
Steel in Translation | 2019年 / 49卷 / 3期
关键词：
annealing; capillary pipe; gas injection; gas-dynamic drag; heat treatment; helium; hydrogen; muffle furnace; nitrogen; optimization; pass-through electrical furnace; protective gas; stainless steel; syringes; thermal power;
D O I：
10.3103/S096709121903015X
中图分类号：
学科分类号：
摘要：
Abstract: Production technology is developed for capillary pipe used in disposable medical syringes. The heat treatment of the pipe in pure hydrogen with inert-gas injection is described. In industrial research, the annealing of the capillary pipe in an electrical furnace is optimized. The temperature field within the muffle furnace is analyzed. The optimal flow rate of protective gas and the limiting permissible flow rate of the injected gas (nitrogen and argon) are determined. The mechanical properties of the pipes (blanks) welded at Tyumen Medical-Supply Plant and manufactured at Pervouralsk New Pipe Plant (PNTZ) are studied. When using nitrogen as the protective gas instead of hydrogen, the likelihood of obtaining clean pipe surfaces is greatly increased. © 2019, Allerton Press, Inc.
引用
收藏
页码：198 / 202
页数：4
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