Abstract:
The invention relates to mechanical engineering and can be used for friction assemblies. The aim of the invention is to develop a method for forming an antifriction coating for contacting sliding surfaces, which increases the constancy, resistance and life time of said antifriction coating when subjected to normal and intensive mechanical and temperature actions and to ensure a high wearability of the surfaces. The inventive method consists in placing a mechanically pre-activated pulverized mixture of a material and a binding agent, which form the antifriction coating, between the sliding surfaces. Compositions of natural minerals containing in mass %: Mg3Si2O5 (OH)4 - 10-60, MgFe2O4 - 10-60, MoS2 - 1-20, and of associated rare-earth elements - 0,1 - 10, H2O - not more than 5, are used as the material forming the antifriction coating. The mechanical pre-activation can be carried out with a pressure pulsation in a range of 0.01 - 10 MPa at a temperature of 100-200 DEG C.
Abstract translation:本发明涉及机械工程,可用于摩擦组件。 本发明的目的是开发一种用于形成用于接触滑动表面的抗磨涂层的方法,当受到正常和强烈的机械和温度作用时,其增加了所述抗磨涂层的恒定性,耐久性和使用寿命,并确保高耐磨性 表面。 本发明的方法包括在滑动表面之间放置形成减摩涂层的材料和粘合剂的机械预活化粉碎混合物。 含有质量%的天然矿物组成:Mg 3 Si 2 O 5(OH)4-10-60,MgFe2O4-10-60,MoS2-1-20和相关稀土元素--0.1-10,H 2 O - 不大于 5用作形成抗磨涂层的材料。 机械预激活可以在100-200℃的温度下以0.01-10MPa的压力脉动进行。
Abstract:
A method for treatment of bacterial infections with rifalazil administered once-weekly or twice-weekly. A method for treatment of tuberculosis caused by Mycobacterium tuberculosis, infections caused by Mycobacterium avium complex, infections caused by Chlamydia pneumoniae and infections caused by Helicobacter pylori by administering to a patient suffering from the bacterial infection 1-100 mg of rifalazil once or twice a week. In this dose regimen, the treatment is fast, efficacious and eliminates undesirable secondary symptoms observed with daily doses of 1-50 mg of rifalazil.
Abstract:
A method for treatment of bacterial infections with rifalazil administered once-weekly or twice-weekly. A method for treatment of tuberculosis caused by Mycobacterium tuberculosis, infections caused by Mycobacterium avium complex, infections caused by Chlamydia pneumoniae and infections caused by Helicobacter pylori by administering to a patient suffering from the bacterial infection 1-100 mg of rifalazil once or twice a week. In this dose regimen, the treatment is fast, efficacious and eliminates undesirable secondary symptoms observed with daily doses of 1-50 mg of rifalazil.
Abstract:
A process is disclosed for manufacturing a lubricant composition comprising combining a superabsorbent polymer with a material for decreasing friction between moving surfaces. The superabsorbent polymer absorbs from about 25 to greater than 100 times its weight in water and may comprise a polymer of acrylic acid, an acrylic ester, acrylonitrile or acrylamide, including co-polymers thereof or starch graft co-polymers thereof or mixtures thereof. A product produced by the process includes the material for decreasing friction comprising a petroleum lubricant containing an additive, water containing an additive, synthetic lubricant, grease, solid lubricant or metal working lubricant, wherein the synthetic lubricant, grease, solid lubricant or metal working lubricant optionally contain an additive. A process comprising controlling the delivery of a lubricant to at least one of two moving surfaces in order to decrease friction between said moving surfaces, is also disclosed. This process includes applying the lubricant composition to at least one of the surfaces. The lubricant composition in this instance comprises a superabsorbent polymer combined with a material for decreasing friction between moving surfaces, wherein the material for decreasing friction comprises a petroleum lubricant, water, synthetic lubricant, grease, solid lubricant or metal working lubricant, and optionally an additive.
Abstract:
The present invention provides a transition metal/polymer matrix composite material which has durable, wear and corrosion resistant and friction reducing characteristics which can be used in a powder or liquid form, or, which can be bonded to a desired surface at ambient temperature. The specific components are transition metal dichalcogenide (TMDs) disulfides of tungsten and molybdenum, and the polymer polytetrafuoroethylene (PTFE). This invention brings together the unique properties of organic chemistry (PTFE) and inorganic chemistry (TMD's) and creates a synergistic interaction optimizing the friction reducing properties of PTFE with similar friction reducing properties of select TMD's, and, the TMD's additional wear-resistance and natural tendency for forming a tenacious physical bond at a molecular level. The invention comprises a mixture of PTFE and TMDs (particularly tungsten disulfide and molybdenum disulfide) which can be applied to a substrate through a variety of mechanisms and manners to form a lubricious and wear-resistant layer ranging from 0.5 micron to 60 microns thick.
Abstract:
Thin impermeable, surface hardened, corrosion-resistant, durable, dry lubricant surface finishes are provided as well as surface finished products and methods for the production thereof. The surface finishes comprise particulate mixtures of sulfur containing metallic compounds and fluorocarbon polymers and are applied to surfaces of substrates such as metallic surfaces.
Abstract:
A surface-coated rubber or plastic sliding member having a coating with excellent durability and high slipperiness,wherein the coating comprises a solid lubricant such as molybdenum disulfide, a resin matrix and a reinforcement, said resin matrix comprising a fluoroolefin vinyl ether polymer resin and/or a fluoroolefin vinyl ether/vinyl ester copolymer resin.
Abstract:
A novel lubricant composition which processes high and positive friction characteristics and comprises (a) at least 20 % by weight of a polymer medium; (b) at least 5 % by weight of a solid lubricant; and (c) at least 5 % by weight of a powderized solid mineral friction modifier.
Abstract:
본 발명은 저점도이더라도 증기압이 낮고, 인화의 위험성도 없고, 또한 내열성이 우수하며, 종래의 탄화수소계 윤활유에 비해 아무런 손색이 없는 마찰특성을 갖고, 고온하 및 진공하 등의 매우 엄한 조건하에서도 장기간 사용할 수 있는 윤활유를 제공하기 위한 것이다. 본 발명은 기유로서, 양이온과 음이온으로 구성되고, 이온 농도가 1 mol/dm 3 이상인 이온성 액체를 포함하는 윤활유에 관한 것이다.