发明名称 |
Glazed surfaces on facade panels for buildings - obtd. using large plasma burner to melt surface of panel |
摘要 |
<p>Surface melting of solid materials or objects, esp. building elements, using an arc as a source of heat, the novelty being that a gas is fed through the arc so that the resulting directed plasma ensures the prodn. of the required heat. The arc is pref. generated using a low voltage direct current, the plasma source being located 2-80 mm from the surface being fused and the axis of the plasma jet is pref. at an angle of 10-90 degrees to the surface. The gas employed is pref. Ar, N2, air, a hydrocarbon, H2 or a mixt. thereof, and the surface may contain an inorganic pigment, esp. metal oxide. Several burners may be used in an automatic program, and a pref. burner design is claimed. Used e.g. for producing a glazed but porous surface on panels 12 m2 in 15 mins., the panels being used as facades in domestic or large industrial buildings using mass prodn. and pre-fabricated building elements. Using a value of 1 for the cost of facades produced by the invention, the use of coloured grey cement with limestone chips is 2.5. times more expensive, and the use of coloured plastics 4-6 times more expensive.</p> |
申请公布号 |
FR2502039(A1) |
申请公布日期 |
1982.09.24 |
申请号 |
FR19760001978 |
申请日期 |
1976.01.26 |
申请人 |
VILLAMOSIPARI KUTATO INTEZET |
发明人 |
OTTO BODAY, JOZSEF ERDOS, BALINT HAJDU, NANDOR KEKESI, FERENC KRAJCSOVIDS, JOZSEF MOCSARY, ISTVAN NEVERI, PAL SZOMMER, LASZLO VAJDA, DANIEL VALTINYI ET AKOS VARGA |
分类号 |
B23K9/00;H05H1/34;(IPC1-7):23K9/00;28B11/00;44D5/00 |
主分类号 |
B23K9/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|