Brake, South Korea
Brake, South Korea

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Lee J.J.,Sangsin Brake Co. | Lee J.J.,Kyungpook National University | Lee N.-R.,Korea Institute of Ceramic Engineering And Technology | Pee J.-H.,Korea Institute of Ceramic Engineering And Technology | And 2 more authors.
Korean Journal of Materials Research | Year: 2017

We synthesized potassium hexatitanate, (K2Ti6O13, PT6), with a non-fibrous shape, by acid leaching and subsequent thermal treatment of potassium tetratitanate (K2TL1O9, PT4), with layered crystal structure. By controlling nucleation and growth of PT4 crystals, we obtained splinter-type crystals of PT6 with increased width and reduced thickness. The optimal holding temperature for the layered PT4 was found to be ~920 °C. The length and width of the PT4 crystals were increased when the nucleation and growth time were increased. After a proton exchange reaction using aqueous 0.3 M HCl solution, and subsequent heat treatment at 850 °C, the PT4 crystal transformed into splinter-type PT6 crystals. The factional characteristics of the friction materials show that as the particle size of PT6 increases, the coefficient of friction (COF) and wear amounts of both the friction materials and counter disc increase. © Materials Research Society of Korea.


Kim S.J.,Hyundai Motor Company | Lee J.Y.,Hyundai Motor Company | Han J.M.,Hyundai Motor Company | Kim Y.C.,Hyundai Motor Company | And 6 more authors.
SAE International Journal of Materials and Manufacturing | Year: 2012

Copper has been regarded as one of the indispensable ingredients in the brake friction materials since it provides high thermal diffusivity at the sliding interface. However, the recent regulations against environmentally hazardous ingredients limit the use of copper in the commercial friction material and much effort has been made for the alternatives. In this work, the role of the cuprous ingredients such as copper fiber, copper powder, cupric oxide (CuO), and copper sulfide (CuS) are studied using the friction materials based on commercial formulations. The investigation was performed using a full inertial brake dynamometer and 1/5 scale dynamometer for brake performance and wear test. Results showed that the cuprous ingredients played a crucial role in maintaining the stable friction film at the friction interface, resulting in improved friction stability and reduced aggressiveness against counter disk. In particular, the addition of copper fiber or copper sulfide contributed to improved friction stability during effectiveness test. The test result also showed that the friction material containing 10 wt.% of cupric oxide exhibited better fade resistance without showing an abrupt decrease of friction coefficient during brake performance and wear tests. The addition of copper fiber showed better wear resistance compared to the friction material with cupric oxide, on the other hand, the increase of copper fiber showed an adverse effect in the wear resistance of the friction materials during wear tests up to 400°C. © 2011 SAE International.


Trademark
Sangsin Brake Co. | Date: 2011-10-18

Carts; sporting cars; Bus; Trucks; Passenger cars (automobiles); Electric locomotives; Aeroplanes; Fishing boats; Brake linings for vehicles; Brake pads for vehicles; Brake shoes assembly for vehicles; Hand brake shoes assembly for vehicles; Brake bracket assembly for vehicles; Brakes for automobiles; Plastic parts for vehicles, namely, exterior decorative side trim for land vehicles; Block brakes for vehicles; Conical brakes for vehicles; Brake forks for vehicles; Disk brakes for land vehicles; Band brakes for vehicles; Rubber transmission belts for land vehicles; Driving chains for land vehicles; Roller chains for land vehicles; Clutches for land vehicles; Leather seat belts for land vehicles; Windshield wipers for land vehicles; Power transmission belt for automobile; Seat covers for automobiles; Safety seats for children (for automobile); Seats for automobile.


Trademark
Sangsin Brake Co. | Date: 2012-09-11

Brake linings for vehicles; Brake pads for vehicles; Brake shoes assembly for vehicles; Hand brake shoes assembly for vehicles; Brake bracket assembly for vehicles; Brakes for automobiles; Plastic parts for vehicles, namely, exterior decorative side trim for land vehicles; Block brakes for vehicles; Conical brakes for vehicles; Brake forks for vehicles; Disk brakes for land vehicles; Band brakes for vehicles; Rubber transmission belts for land vehicles; Driving chains for land vehicles; Roller chains for land vehicles; Clutches for land vehicles; Leather seat belts for land vehicles; Windshield wipers for land vehicles; Power transmission belt for automobile; Seat covers for automobiles; Safety seats for children for automobiles; Seats for automobile.


Trademark
Sangsin Brake Co. | Date: 2011-12-06

Brake linings for vehicles; Brake shoes assembly for vehicles; Hand brake shoe assembly for vehicles; Block brakes for vehicles; Conical brakes for vehicles; Brake forks for vehicles; Disc brakes for land vehicles; Band brakes for vehicles.


Trademark
Sangsin Brake Co. | Date: 2012-06-19

Brake linings for vehicles; Brake pads for vehicles; Brake shoes assembly for vehicles; Hand brake shoes assembly for vehicles; Brake brackets as structural parts of vehicles; Brakes for automobiles; Block brakes for vehicles; Conical brakes for vehicles; Brake forks for vehicles; Disk brakes; Band brakes for vehicles; Rubber belts for land vehicles, namely, belts for land vehicle transmissions; Driving chains for land vehicles, namely, transmission chains for land vehicles; Roller chains for land vehicles, namely, transmission chains for land vehicles; Clutches for land vehicles; Leather belts for land vehicles, namely, seat belts for use in land vehicles; Windshield wipers; Power transmission belt for automobile; Seat covers for automobiles; Safety seats for children for automobile; Seats for automobiles.

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