Development of a Novel Mold Design for Manufacturing of Hollow Ceramic Products from Coal Wastes

被引：7

作者：

Fomina, Oksana A. ^{[1
,2
]}

Stolboushkin, Andrey Yu. ^{[3
]}

机构：

[1] Siberian State Ind Univ, Dept Architecture, 42 Kirova St, Novokuznetsk 654007, Russia

[2] RAS, Mech Engn Res Inst, Maly Kharitonievsky 4, Moscow 101990, Russia

[3] Siberian State Ind Univ, Dept Construct Technol & Mat, 42 Kirova St, Novokuznetsk 654007, Russia

来源：

MATERIALS TODAY-PROCEEDINGS | 2019年 / 11卷

关键词：

mold; coal waste; granulated press powder; hollow seramic sample; matrix structure;

D O I：

10.1016/j.matpr.2018.12.156

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the conducted study we developed design of a mold for pressing hollow ceramic. The results of investigations of granulometric, chemical, mineral compositions and technological properties of waste from coal argillites enrichment and clay raw materials are presented. It is described the technology of manufacturing granular press powders based on coal waste. The distribution and structure of the powdered granules are shown. The investigations of ceramic samples of the matrix structure have been carried out and the formation of an inner zone of dark gray in solid samples during firing process has been revealed. Carbon burning is stopped Inside the samples without oxygen access and hematite is reduced to protoxidic form. It was noticed the absence of a dark center in hollow samples. It has been established the formation of a matrix structure in ceramic products. The necessity of oxidizing atmosphere for firing and hollow form of ceramic products from coal waste is substantiated. (C) 2019 Elsevier Ltd. All rights reserved.

引用

页码：348 / 353

页数：6

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