Research the reasons of instability of the industrial process of vacuum hot pressing of beryllium powders

Alexandr Revutskiy, B. V. Syrnev, O. V. Semilutskaya

2021

Full text Open access: Hybrid Metadata (CSL-JSON)
DOI 10.51301/vest.su.2021.i5.12
Data confidence 70 medium
How this score is calculated

It is built from checkable properties of the record itself: whether the article has a DOI, how many independent sources confirmed its data, whether the required fields are filled in, and how recent the latest confirmation is. Disagreement between sources and a missing identifier lower it. A value of 80 or above means the record was published without further checking; 60 to 79 means it is published at reduced confidence, with a manual check advisable. A record verified by an editor by hand is never pushed below 90 by a recalculation. This scores our data about the article, not the article itself.

Abstract

The paper analyzes ways to improve the quality index of the process of obtaining structural beryllium blanks by vacuum hot pressing of beryllium powders with a fineness of less than 56 microns. In the course of the work, the following were carried out: a comparative analysis of the quality of hot-pressed blanks depending on the production period; analysis of the representativeness of the values ​​of the characteristics of powders; studied the dynamics of changes in the chemical composition of beryllium in the process of grinding ingots. The results of studies of the reasons for the instability of the quality of sintered beryllium billets are presented. Using the method of mathematical statistics, the influence of individual factors of industrial production on quality indicators was studied. The results of changes in the chemical composition of beryllium during the grinding of ingots are presented, as well as an assessment of the irreproducibility of the results of analysis of the content of impurities and certification of products by mechanical properties.