. Nature . LIC are various means of coating metals with othermetals, generally of a protective nature; thus, forexample, electroplating, galvanising, and drawing the new process of considerable interest, invented by M. , of Zurich, was described in a paper read beforethe Engineers and Architects Society of Zurich on .April 13,and reproduced in Metallurgical and Chemical Engineer-ing [vol. viii., p. 404). The chief point in the new process is that the metal inthe liquid condition is sprayed upon the surface to becoated. The atomising of the metal may be brought ab
. Nature . LIC are various means of coating metals with othermetals, generally of a protective nature; thus, forexample, electroplating, galvanising, and drawing the new process of considerable interest, invented by M. , of Zurich, was described in a paper read beforethe Engineers and Architects Society of Zurich on .April 13,and reproduced in Metallurgical and Chemical Engineer-ing [vol. viii., p. 404). The chief point in the new process is that the metal inthe liquid condition is sprayed upon the surface to becoated. The atomising of the metal may be brought aboutin a variety of ways. The metal is melted in a closedcrucible, and is forced out of a nozzle by the pressure ofgases or vapours ; or the subdivision of the metal may bebrought about by causing two jets of metal to pass out ofseparate nozzles, so thai they meet at a suitable , being under pressure, break up into a fine spray,which is carried forward and coats any object placed nearto the Schoop Process for Prod of Metallic Coatings, The most satisfactory method, however, appears to beto cause the subdivision of the metal by the use of com-pressed gases. The metal which is to be employed forcoating purposes is melted in a closed crucible which hasa pipe at the bottom, ending in a nozzle with acapillary opening. Another pipe enters the upper part ofthe crucible, which is connected with a source of com-pressed gas, the gas being pre-heated by passing through acoil, d. Another tube is connected externally with the gas-pressure tube and ends in a nozzle, which is situated belowthe metal outlet. The compressed gas impinges with greatpressure on the fine stream of metal, which is also beingforced out under great pressure. The metal is thus veryfinely atomised, and is blown against the article to be^.-oated. h. Various gases may be used to press the metalout of the nozzle, for , an inert gas such asnitrogen, and this may also be used for atomising ; but, on
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