Abstract:
The present invention provides a new composite material comprising a porous matrix made of metal, metal alloy or semiconducting material and hollow fullerene-like nanoparticles of a metal chalcogenide compound or mixture of such compounds. The composite material is characterized by having a porosity between about 10 % and about 40 %. The amount of the hallow nanoparticles in the composite material is 1-20 wt.%.
Abstract:
The present invention relates to lubricant compositions and can be used for treatment of friction units in different machines and mechanisms in manufacturing processes, the purpose of which is modification of friction surfaces. The basis of the invention is the improvement of lubricant composition, in which as the consequence of the additional use of thickener and wax, the viscosity of lubricant composition sufficient for conversation of uniform distribution of solid component in lubricant composition in broad temperature range is provided; and at the expense of that, the possibility of conservation of lubricant composition in any packaging and bulks, which are usable even under operating conditions of machines and mechanisms, is reached. The lubricant composition acquires the state of gel, that is convenient to put on any friction surface, to deposit on a zone of friction of any friction units. The lubricant composition ensures the receiving of engineering results similar to those, which solid components exhibit using fine-dispersed powder on basis of natural minerals from flaky silicates series and at the same time the sedimentation properties of lubricant composition permit its continuous conservation in broad temperature range without variation of lubrication and modification properties.
Abstract:
The present invention relates to a method for mechanical working of metal and other solid materials as well as glass with a cooling and lubricating composition containing a major portion of carbon dioxide and a minor portion of a polar lubricant containing at least one polar organic compound with at least one oxygen atom. The polar groups may be selected from the group consisting of the ether, hydroxyl, carboxyl, ester and amido group or mixtures thereof.
Abstract:
A solid film lubricant system for protecting metal wear interfaces subject to high temperatures and wet lubrications, comprising an oil-attracting solid lubricant mixture (A) with at least two elements (A1, A2, A3) selected from the group of graphite, MoS2 and BN; a support (B) (i.e., hard lands or hard sublayer) for the mixture to loads of at least 10 psi at temperatures of 600-800 DEG F while being thermally stable; a thermally stable thermoset polymer matrix adhering the mixture to the support or the wear surface, the polymer having inherent hydrocarbon chemical attraction to form a tenacious oil film of the lubricating oil on the wearing surfaces, such as cylinder bore surfaces of a cylinder block of an internal combustion engine.
Abstract:
본 발명에 따른 슬라이딩 피막은 고체 윤활제, 바인더 수지 그리고 저융점 재료를 함유한다. 상기 바인더 수지는 고체 윤활제를 기재(基材)의 표면 위에 유지하기 위한 것으로 유리전이온도를 가진다. 상기 저융점 재료는 상기 바인더 수지의 유리전이온도보다 낮은 융점을 가진다. 상기 저융점 재료는 슬라이딩 부재들 사이에 발생되는 마찰열을 흡수할 수 있는 잠열을 가짐으로 바인더 수지의 열화(劣化)를 지연시킨다. 결과적으로, 상기 슬라이딩 피막은 높은 내눌러붙음성을 만들어낸다.
Abstract:
A lubricant to be sprayed onto the surface of a steel material for forming a lubricant coat on the surface of the steel material to be forged. The lubricant comprises a particulate lubricant composed of thermally melting resin mixed with inorganic lubricant. The particulate lubricant is applied onto the surface of a steel material to be forged. Before or after applying the particulate lubricant onto the surface of the steel material, the surface of the steel material is heated. Consequently, the thermally melting resin melts and coheres with the inorganic lubricant over the surface of the steel material, resulting in the formation of a uniformly thick lubricant coat over the steel material. The lubricant coat prevents the steel material from being burnt in a forging device even during hot forging. The lubricant coat is fit for the forging of hard to work steel material. The lubricant coat also contributes to the decrease in forging cost, without deteriorating the forging environment.
Abstract:
A low pressure die casting mold releasing agent comprising a mixture of a mold releasing base material, which is an inorganic compound, with an organic compound, at least the mold releasing base material being of powdery or granulated form. This mold releasing agent allows production of castings of high quality, with good workability and without adversely affecting environmental situations.
Abstract:
A squeeze casting mold releasing agent comprising a mixture of a mold releasing base material, which is an inorganic compound, with an organic compound, at least the mold releasing base material being of powdery or granulated form. This mold releasing agent allows production of castings of high quality, with good workability and without adversely affecting environmental situations.