摘要:
The present invention addresses the problem of providing an aqueous coating agent composition (in particular, an aqueous lubricating film paint composition that includes a solid lubricant) that suppresses the interaction of a curable resin and a surfactant, suppresses thickening/disproportionation throughout an aqueous coating agent, has superior overall fluidity, coating properties, and storage stability, and can form a favorable coating film, along with the problem of providing a member provided with said coating film, as well as a method for forming said coating film. Said problems can be solved by an aqueous coating agent composition that includes (A) a curable resin in the form of an aqueous emulsion, (B) a surfactant, (C) solid particles, (D) one or more nitrogen-containing heterocyclic compounds, and (E) water. In particular, the component (C) preferably includes a solid lubricant, and for reasons of environmental regulations, it is particularly preferable that the component (D) be 1,3-dimethyl-2-imidazolidinone.
摘要:
A lubricating oil for plastic working contains a powder of a compound having a urea bond incorporated therein. The lubricating oil forms a thick lubricating coating having excellent thermal resistance and loading resistance on the frictional surface during working by simply applying it on the surface of a material or a mold and, therefore, effectively prevents occurrence of seizing, even in the production of moldings having a high degree of working or complex shapes. The plastic worked product has a coating of the lubricating oil on its surface which provides an excellent anticorrosive effect for steel stocks. The oil may also contain at least one extreme-pressure additive selected from:
(1) condensed phosphoric acid, (2) phosphite and phosphate esters, (3) organic sulfur compounds, and (4) organic chlorine compounds.
摘要:
The present invention provides a lubrication system that improves the force of retaining a lubricating component of a foamed lubricant, is capable of minimizing the amount of exudation of the lubricating component which occurs owing to deformation of the foamed lubricant, is capable of compensating for a lubricating function even when the lubricating component exudes insufficiently from the foamed lubricant, and is capable of complying with a demand that the lubrication system has a long life and can be produced at a low cost. The lubrication system comprises a foamed lubricant containing a lubricating component in a resin thereof which foams, hardens, and becomes porous and a grease for auxiliary lubrication which is present together with the foamed lubricant in a portion to be lubricated. The grease for auxiliary lubrication satisfies a condition that (1) a penetration thereof is not less than 175 and less than 285 or that (2) a mixing ratio of a thickener to the grease for auxiliary lubrication is not less than 10 wt% and less than 40 wt%. As shown in the drawings, a foamed lubricant (9) and a grease (10) for auxiliary lubrication are present together inside a universal joint.
摘要:
It is an object of the present invention to provide a lubricating system that improves the force of retaining a lubricating component of a foam lubricant, minimizes an exudation amount of the lubricating component caused by deformation of the foam lubricant, is excellent in initial lubrication, has a long life, has a low cost, and is excellent in the productivity thereof; a bearing utilizing the lubricating system; a universal joint utilizing the lubricating system; and a process for the production thereof. A lubricating system includes a foam lubricant (9) containing a lubricating component in a resin thereof which foams, hardens, and becomes porous and a lubricant (10) for initial lubrication which is present together with the foam lubricant (9) in a portion to be lubricated. The lubricant (10) for initial lubrication consists of grease having a worked penetration not less than 300 or having a degree of oil separation not less than 0.7 wt% when the grease is left 24 hours at 70°C or consists of lubricating oil having a kinematic viscosity not less than 50mm 2 /second at 40°C. In initial lubrication of the lubricating system, the lubricant (10) for initial lubrication is essentially present at a sliding portion of the portion to be lubricated.
摘要:
A lubricating oil for plastic working contains a powder of a compound having a urea bond incorporated therein. The lubricating oil forms a thick lubricating coating having excellent thermal resistance and loading resistance on the frictional surface during working by simply applying it on the surface of a material or a mold and, therefore, effectively prevents occurrence of seizing, even in the production of moldings having a high degree of working or complex shapes. The plastic worked product has a coating of the lubricating oil on its surface which provides an excellent anticorrosive effect for steel stocks. The oil may also contain at least one extreme-pressure additive selected from: (1) condensed phosphoric acid, (2) phosphite and phosphate esters, (3) organic sulfur compounds, and (4) organic chlorine compounds.