摘要:
A wet-type segmented friction material has a tape-like friction material substrate which is passed through and pressed between a roller having a dent at a center and a flat roller. At the same time, the friction material substrate is heated from an inside and an outside of the rollers so as to carry out a heat press compression processing. Then, a processed friction material substrate has a predetermined cross-section. The processed friction material substrate is cut into segment pieces each having a segment shape by a rotary push cutter having a sharp cutting edge. A cut position of the segment piece is selected such that two straight lines at two lateral sides of the segment shape is located within an area of a compressed portion of the processed friction material substrate. That is, a stepped or sunken compressed portion is provided on both sides of the segment piece.
摘要:
A metal-clad laminate, including metal foil, and a first resin layer arranged on the metal foil, the first resin layer including an epoxy resin and a fluoropolymer with a curable functional group. Also disclosed is a method of producing the metal-clad laminate.
摘要:
Provided is a weatherable backsheet for solar cell modules which comprises a cured coating film and a water-impermeable sheet, the cured coating film having improved secondary adhesion to the water-impermeable sheet. The backsheet is produced using a coating composition having a prolonged usable life, and film blocking phenomenon during the production can be avoided. The weatherable backsheet for solar cell modules comprises a water-impermeable sheet and a cured coating film layer formed on at least one surface thereof, the coating film layer comprising a cross-linked product of a coating composition which comprises a hydroxylated fluoropolymer and silicon oxide particles having an average primary-particle diameter of 0.1 to 30 μm.
摘要:
The present invention provides a weather-resistant sheet for a solar cell module, which has better adhesion to a water impermeable sheet, better blocking resistance against the water impermeable sheet, and better adhesion to EVA that is a sealant; a weather-resistant sheet for a solar cell module in which a cured coating film layer thereof can suppress UV transmission significantly; a product including the sheet; and a process for producing the sheet. The weather-resistant sheet for a solar cell module includes, on a water impermeable sheet, a cured coating film layer made of a crosslinked product of a coating composition that includes a hydroxyl group-containing fluoropolymer, wherein in a pressure-resistance test performed when a crosslinking degree of the cured coating film layer is 80 to 99%, the cured coating film layer and the water impermeable sheet without a cured coating film layer formed thereon are not adhered to each other after a load has been applied to the cured coating film layer and the water impermeable sheet being stacked.
摘要:
A polymer composite material provides superior heat resistance, mechanical physical properties, substance permeation barrier properties, flame retardant properties, electrical conductivity and the like. Moreover, a novel surface-modified nanofiller utilizes this type of polymer composite material. The polymer composite material contains nanofillers, fluorocompounds and polymers. Fluoruocompounds bond to the surface of the nanofillers. The nanofillers to which fluorocompounds are surface-bonded are mixed with or dispersed in polymers.
摘要:
A ring-shaped core metal is pressed and compressed by a main punch and a counter punch so as to have a wave shape. Moreover, each group of three micro-protrusions provided on each of top points of the wave shape are cut in the core metal. Then, three notches are cut on the core metal corresponding to the micro-protrusions. Furthermore, plastic flow is generated at a surface layer of the core metal due to partial compression by the notches at the time of pressing and compressing. Then, the waves are formed on the core metal with the notches as the top points. The notches are cut at seven sections respectively on a front surface and a rear surface of the core metal. Thus, seven waves are formed on the core metal in total. Since the notches are formed on the front and the rear surfaces of the waves, a “return” phenomenon is not generated as seen in a conventional cool working method. Thus, the waves are formed at high accuracy.
摘要:
A ring-shaped core metal is pressed and compressed by a main punch and a counter punch so as to have a wave shape. Moreover, each group of three micro-protrusions provided on each of top points of the wave shape are cut in the core metal. Then, three notches are cut on the core metal corresponding to the micro-protrusions. Furthermore, plastic flow is generated at a surface layer of the core metal due to partial compression by the notches at the time of pressing and compressing. Then, the waves are formed on the core metal with the notches as the top points. The notches are cut at seven sections respectively on a front surface and a rear surface of the core metal. Thus, seven waves are formed on the core metal in total. Since the notches are formed on the front and the rear surfaces of the waves, a “return” phenomenon is not generated as seen in a conventional cool working method. Thus, the waves are formed at high accuracy.
摘要:
This invention relates to a manufacturing method and a manufacturing apparatus of friction plate for clutch. The present invention intends to provide the manufacturing method and the manufacturing apparatus of friction plate for clutch which can adhere the plural friction material segments to the core plate in shorter time period than that in the conventional art. The manufacturing method comprises a step for containing plural friction material segments 2 on a one surface 70a of a holding body 4 circumferentially; and a step for making the one surface of said holding body 4 and an adhering surface of a core plate 8 coated with an adhesive agent come near to each other, and for adhering the friction material segments 2 held by said holding body 4 to the adhering surface of said core plate 8 by urging.
摘要:
Disclosed is a brake band which includes a band and a lining connected to an inner peripheral surface of the band. The lining includes a plurality of grooves in its inner peripheral surface, the grooves which extend from an end to another end of the lining in an axial direction of a drum, rotating either in a clockwise direction or in a counter clockwise direction, obliquely with respect to an axial direction and a circumferential direction of the lining. The grooves include a communication passage which communicates an inner peripheral surface of the lining with the outside and which is disposed at a leading end of the grooves with respect to the clockwise rotational direction of the drum, and a trailing end of the grooves with respect to the clockwise rotational direction of the drum is disposed an inside of the another end of the lining. The brake band has a high cooling efficiency when the drum rotates in the clockwise direction. When the drum rotates in the counterclockwise direction, the oil is flowed to the trailing ends of the grooves, and it is blocked by the trailing ends. Accordingly, the oil is thus held in the grooves, and it is leaked gradually between the drum and the lining in a sufficient amount. Therefore, the brake band maintains the high cooling efficiency, and it inhibits the judder from occurring even when the drum rotates in the counterclockwise direction.