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1. 发明申请

WO1982000302A1 ARTICLES PROTECTED AGAINST CORROSION AND METHOD FOR PROTECTING ARTICLES AGAINST CORROSION 审中-公开
标题翻译：防腐蚀用品和保护防腐品的方法
公开(公告)号：WO1982000302A1
公开(公告)日：1982-02-04
申请号：PCT/DK1981000069
申请日：1981-07-08
申请人： AALBORG PORTLAND CEMENT , ARUP H
发明人： AALBORG PORTLAND CEMENT
IPC分类号： C23F15/00
CPC分类号： C23F13/02 , C04B28/04 , C09D1/06 , C23F2201/02 , C04B14/06
摘要： Des articles en acier sont proteges contre la corrosion en les enrobant completement ou partiellement d'un materiau ayant une resistivite d'au moins 0,1 M(Alpha).cm et comprenant une matrice qui consiste en: A) des particules solides inorganiques d'une dimension comprise entre 50 66 environ et 0,5 (Alpha)m environ, ou une structure coherente formee avec ces particules disposees de maniere homogene et B) des particules solides entassees de maniere dense ayant une dimension de l'ordre de 0,5-100 (Alpha)m et etant plus grandes d'au moins un ordre de grandeur que les particules respectives decrites dans A), ou une structure coherente formee avec ces particules entassees de maniere dense, les particules B) etant de preference des particules de ciment Portland. Les particules A) sont de preference des particules de silice ultrafine formee par croissance a partir d'une phase vapeur et sont entassees de maniere sensiblement dense dans les vides definis entre les particules B). Les particules A sont specialement presentes en une quantite de 10-30% en volume, calculee d'apres le volume combine des particules A + B. Un materiau composite de formation de la matrice comprend d'une maniere caracteristique du ciment Portland, de la silice ultrafine, de l'eau en faibles proportions, et un superplastifiant de beton en proportions elevees, eventuellement des corps supplementaires tels que des fibres ou du mica et peut etre facilement faconne et il est egalement approprie a une application sous l'eau. La resistivite au materiau d'enrobage est de l'ordre de 0,3 a 10 M (Alpha).cm, d'une maniere caracteristique au moins 1 M(Alpha).cm. Le developpement de la resistivite s'accelere lorsque la polymerisation s'effectue a une temperature elevee. L'article en acier peut par exemple etre un article en acier dans lequel l'acier recoit une protection cathodique, ou un raccord de tubes (10) qui comprend une paire de corps tubulaires espaces axialement (11, 12) interconnectes par ce materiau d'enrobage (22).

2. 发明申请

WO1981003170A1 SHAPED ARTICLE AND COMPOSITE MATERIAL AND METHOD FOR PRODUCING SAME 审中-公开
标题翻译：形状的制品和复合材料及其制造方法
公开(公告)号：WO1981003170A1
公开(公告)日：1981-11-12
申请号：PCT/DK1981000048
申请日：1981-05-01
申请人： AALBORG PORTLAND CEMENT , BACHE H
发明人： AALBORG PORTLAND CEMENT
IPC分类号： C04B15/00
CPC分类号： C04B40/00 , B28B23/0081 , C04B18/146 , C04B28/04 , C04B30/00 , Y02W30/94 , C04B14/00 , C04B16/00 , C04B20/0048 , C04B24/22 , C04B32/02 , C04B41/45
摘要： Shaped articles with a coherent matrix comprising homogeneously arranged bodies (A) (18, 14) of a size of from about 50 66 to about 0.5 (Alpha)m, such as silica dust particles, and densely packed bodies or particles (B) (12) having a size of the order of from 0.5 - 100(Alpha)m and being at least one order of magnitude larger than the respective particles or bodies (A), such as Portland cement particles, and optionally additionally comprising, embedded in the matrix, solid particles (C) of a material having a strength exceeding that of ordinary sand and stone used for ordinary concrete, such as refractory grade bauxite, the particles (A) being homogeneously distributed, especially densely packed, in the void volume between the particles (B), are made from an easily flowable composite material containing a very low amount of liquid such as water and an extremely high amount of a dispersing agent such as a concrete superplasticizer. Test specimens comprising Portland cement/silica dust matrix with refractory grade bauxite embedded therein have higher compressive strength than hitherto reported for any cement-based matrix, which means that the matrix material makes it possible to construct larger structures with size in excess of what is possible with known structural materials such as high quality concrete and structural steel. Portland cement-based material may be used as a replacement for plastic, glass and steel such as for tools for making automobile steel body parts by compression. More generally, a new class of material is disclosed, not limited to cement systems, where the fundamental principle is utilization of known geometric and kinematic principles for arrangement of larger bodies or particles (12) in desired configuration relative to each other, in particular dense packing, in systems of fine particles or bodies (18, 14) which are 1 -2 orders of magnitude finer than the body or particle systems in which it has so far been possible to benefit from knowledge of large body geometry and kinematics, overcoming, by means of dispersing agent, the locking surface forces between adjacent bodies which hitherto prevented bodies or particles of micro and submicro size to be arranged densely according to pure geometric and kinematic principles. Application of these principles permits production of a variety of new materials of hitherto unknown high quality such as high performance fiber/ metal matrix composites where the compressive strength and abrasion resistance of the metal matrix is strongly improved by introducing submicro particles (A) (18) which is made possible by the particle arrangement principle where locking surface forces have been overcome. In spite of a high content of fibers such as 50% by volume of high strength very thin fibers in the 5 - 10 micron range, densely packed particles (A) (18) may be introduced by shaping the particle/fiber system with an auxiliary vehicle (20) such as water which is then substituted with the final inter-particle substance such as a metal in a subsequent process such as infiltration.

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