Product Quality Monitoring/Improving laboratory product monitoring

摘要

In the preparation for celebrating the jubilee of coking and chemical production at Nizhnii Tagil' Metallurgical Corporation, a group of long-time workers updated the history records for the central laboratory. This implies that it was organized in October 1939, when a group of laboratory workers visited the central laboratory for two months at the Gubakha coking and chemical plant. The central laboratory was located at that time in an old building. The construction of a new laboratory building was completed in 1964, and it initially contained only a research group. In 1957, when the plant was incorporated into Nizhnii Tagil' Metallurgical Corporation, the laboratory acquired the status of a specialized coking and chemical one, and only in 1993 was it raised to the status of the central laboratory. During that time, the central laboratory (CL) had been home to more than one generation of laboratory workers and engineering technicians, and there had been changes in organizational form, location, and equipment. The veterans remember that technical analysis of coal and coke used to be performed in a vast gas muffle furnace, while the heaters in the plastometric equipment used krypton and manual temperature regulation. Today, the weighing is performed on electronic single-pan balances and the firing of samples is performed in electrical muffle furnaces with automatic temperature regulation and display, while a computer controls the plastometric analysis and records the curve. In 1996, computerized analyzers type Leko-601 and Shtrolyain provided substantial increases in coal and coke quality monitoring volume. The working conditions for the laboratory staff also improved.