摘要:
A method for producing a solid lubricant includes steps of preparing and coating. A phosphate aqueous solution prepared by the step of preparing is an aqueous solution containing at least one of aluminum dihydrogen phosphate and magnesium dihydrogen phosphate in an amount of 0.5 to 10% by mass. A graphite material is coated with a phosphate using the phosphate aqueous solution. The graphite material is used at a ratio of 40 to 50 parts by mass based on 100 parts by mass of the aqueous solution.
摘要:
The present invention provides bead-like hollow particles and an easy and convenient method for producing the same, and a friction material using the bead-like hollow particles.The particles are bead-like hollow particles comprising odd-shaped particles composed of a metal oxide as a main component and having at least one of a through hole and non-through hole in a surface; the method is a producing method for the bead-like hollow particles, which comprises spraying and drying a suspension of a particulate biological material and a particulate metal oxide by a two-fluid nozzle spray dryer to obtain a powder composed of the particulate biological material as a core and a layer of the particulate metal oxide as a shell, and heating the obtained powder; and the friction material is a friction material using the hollow particles.
摘要:
A resin-impregnated porous filler having meso-pores, micro-pores, and macro-pores is obtained by inserting a coupling agent or an inorganic material between layers of a stratified clay mineral to prepare a crosslinked structure between the layers; making the stratified clay mineral three-dimensional; and impregnating the macro-pores with resin.
摘要:
The present invention provides a binder resin for a friction material, which enables high-temperature short-time thermoforming and can omit a post-curing step and suppress the generation of a pyrolysis component at molding; a friction material using the binder resin; and a binder resin composition for a friction material, which is enhanced in the heat resistance and can suppress a rapid increase of the wear amount, and in addition to these properties, which has good dynamic property and enables high-temperature short-time thermoforming. The present invention relates to a binder resin for a friction material which comprises (A) one kind or two or more kinds of polybenzoxazine resins selected from a condensation reaction product of an aminophenol compound with formaldehydes and a condensation reaction product of a bifunctional phenol compound and a bifunctional amine compound with formaldehydes; a binder resin composition for a friction material which comprises: the component (A); and further (B) one kind or two or more kinds of particles selected from an inorganic particle and an inorganic-organic composite particle, and a friction material obtained by the binder resin or binder resin composition.
摘要:
A friction material contains substantially no material whose Mohs hardness is higher than 6. In addition, the friction material contains a layered clay mineral, in which titania particles are inserted into layers, at a rate of 0.5%-by-mass to 20%-by-mass.
摘要:
The present invention provides a thermosetting resin composite material excellent in mechanical strength and wear resistance at high temperature, which is achieved by converting graphite into thin-layered one and dispersing it in a thermosetting resin homogeneously.A thermosetting resin composite material, wherein an organically modified graphite having an organic compound molecule inserted between graphite layers is mixed with a thermosetting resin, the organically modified graphite being prepared by subjecting graphite to a chemical treatment to form a graphite interlayer compound having a low-molecular substance inserted between graphite layers and subsequently immersing the resultant product in a solution of an organically modifying agent, as well as a process for producing the same. Preferably, the organically modified graphite is mixed with a thermosetting resin to be converted into thin-layered one having a layer thickness of 0.1 to 100 nm, a layer length of 100 nm to 100 μm, and an aspect ratio of 100 to 1,000,000.
摘要:
In a brake member having a brake lining bonded to a brake shoe, the brake shoe has a chemical conversion coating provided on the surface thereof and a ceramics coating layer provided on the chemical conversion coating which has been formed by dipping in a ceramics precursor solution. The brake lining is bonded to the ceramics coating layer by heating under pressure. A method for bonding a brake lining and a brake shoe is provided with a step of degreasing, cleaning and acid-washing the surface of a brake shoe and then forming a chemical conversion coating thereon, a step of dipping the brake shoe having a chemical conversion coating formed thereon in a ceramics precursor solution to effect ceramics coating and a step of bonding a dried brake lining to the brake shoe under heating and pressure.
摘要:
A metal oxide composite particle is produced by hydrolyzing and condensing a hydrolysable metal compound in a solvent and in the presence of an inorganic particle and/or an organic particle to form a metal oxide sol, and subjecting the obtained sol to drying, heating and crushing processes.
摘要:
In a brake member having a brake lining bonded to a brake shoe, the brake shoe has a chemical conversion coating provided on the surface thereof and a ceramics coating layer provided on the chemical conversion coating which has been formed by dipping in a ceramics precursor solution. The brake lining is bonded to the ceramics coating layer by heating under pressure. A method for bonding a brake lining and a brake shoe is provided with a step of degreasing, cleaning and acid-washing the surface of a brake shoe and then forming a chemical conversion coating thereon, a step of dipping the brake shoe having a chemical conversion coating formed thereon in a ceramics precursor solution to effect ceramics coating and a step of bonding a dried brake lining to the brake shoe under heating and pressure.
摘要:
A work to be coated with multi layers of coating films, is provided with a first layer of coating film formed by coating a powder coating material of a thermosetting resin containing an electroconductive filler and an elastomer on a surface to be coated on the work; and a second layer of coating film formed by coating a powder coating material of a thermosetting resin containing water repellent particles on the first layer of coating film. The first layer of coating film and the second layer of coating film are baked by heating. It is preferable that the work is a friction member including a metal pressure plate and a friction material.