ISSN:0002-7820    

DOI:10.1111/j.1151-2916.1930.tb18093.x

出版商:Blackwell Publishing Ltd    

年代:1930

数据来源: WILEY

ISSN:0002-7820    

DOI:10.1111/j.1151-2916.1930.tb18094.x

出版商:Blackwell Publishing Ltd    

年代:1930

数据来源: WILEY

ISSN:0002-7820    

DOI:10.1111/j.1151-2916.1930.tb18095.x

出版商:Blackwell Publishing Ltd    

年代:1930

数据来源: WILEY

ISSN:0002-7820    

DOI:10.1111/j.1151-2916.1930.tb18096.x

出版商:Blackwell Publishing Ltd    

年代:1930

数据来源: WILEY

摘要:

ABSTRACTBeginning with simple compositions containing only those constituents necessary to make a glass, additions were systematically made in the development and study of acid‐resisting enamels.It was found that the acid resistance depends on the proper combination of constituents rather than the presence or absence of any particular material. It was shown that all fluorine compounds are detrimental to acid resistance but experience shows that some form of fluorine is necessary to obtain good quality opacity. Smelting, if properly done, milling, and firing have practically no effect on the acid resistanc

ISSN:0002-7820    

DOI:10.1111/j.1151-2916.1930.tb18097.x

出版商:Blackwell Publishing Ltd    

年代:1930

数据来源: WILEY

摘要:

ABSTRACTThe appearance of sheet‐steel enamels fired in atmopheres of nitrogen, carbon dioxide, sulphur dioxide, and Urbana city gas has been determined. A study of the effect of variations in the composition of sheet‐steel ground coats and sheet‐steel cover coats on their resistance to attack by sulphur gases has been made. Plans for future work on the problem are out

ISSN:0002-7820    

DOI:10.1111/j.1151-2916.1930.tb18098.x

出版商:Blackwell Publishing Ltd    

年代:1930

数据来源: WILEY

摘要:

ABSTRACTThe author points out the necessity for careful selection and constant supervision of all raw materials, together with simple tests which the enameler may apply to such materials to insure a uniform product free from objectionable impurities.

ISSN:0002-7820    

DOI:10.1111/j.1151-2916.1930.tb18099.x

出版商:Blackwell Publishing Ltd    

年代:1930

数据来源: WILEY

摘要:

ABSTRACTAn impartial survey of the various commercial feldspars available is presented to the consumers of that product. Discussions and analyses of many of the commercial feldspars mined in the United States and Canada and analyses of actual shipments are given. The similarities and differences between feldspars of the different sections and the quality and fineness of grinding in connection with the branches of the ceramic industry using feldspar are discussed. Blending of feldspars is also considered.

ISSN:0002-7820    

DOI:10.1111/j.1151-2916.1930.tb18100.x

出版商:Blackwell Publishing Ltd    

年代:1930

数据来源: WILEY

摘要:

ABSTRACTData are presented to combat the fallacy that the chemical composition of a feldspar is a definite indication of its behavior as a vitrifying agent in ceramic bodies. A general presentation of data on the pure feldspar types and their constitution and mode of occurrence in commercial deposits is made. The effect of solid solution vs. associated or mixed feldspars on the physical properties of feldspars of similar compositions is outlined and the character of associated quartz and muscovite (white mica) is considered. A proposed basis of classification depending on the fusion behavior of the feldspar in the presence of quartz, kaolin, and ball clay is made.

ISSN:0002-7820    

DOI:10.1111/j.1151-2916.1930.tb18101.x

出版商:Blackwell Publishing Ltd    

年代:1930

数据来源: WILEY

摘要:

ABSTRACTObservations on glass pots in plants, experiments on laboratory pots, and theoretical considerations point to the fact that the occurrence of seeds and bubbles may be prevented by the introduction of porous pot walls or by the introduction of porous fireclay rods or similar objects into the melt. The porosity of the walls must be maintained throughout the entire duration of the melting process.

ISSN:0002-7820    

DOI:10.1111/j.1151-2916.1930.tb18102.x

出版商:Blackwell Publishing Ltd    

年代:1930

数据来源: WILEY