Hyundai Motor Company

Samsung Electronics Co., Ltd.

Kia Motors Corporation

Other

Hyundai Sungwoo Casting Co Ltd

Seohan Industry Co., Ltd.

Jinmyung Frictech Co., Ltd.

Lg Electronics Inc.

Kia Corporation

Byung Chan Lee

Yoon Cheol Kim

Yoon Joo Rhee

Jae Young Lee

Min Gyun Chung

Jai Min Han

Joon Suh Kim

Chang Hwan Hwang

Jeong Ho Shin

Sung Jin Hong

In Seop Kim

Eun Pa Cho

Jae Seok Lee

Chi Deuk Ahn

Yong-Sik Jang

Chang-Soo Lee

Jong Han Kim

Young Keun Lee

Jae Woo Lee

Jin Woo Han

Joo Beom Kim

Jin Dong Kim

O Sung Kwon

Jae Chan Park

Gee Hong Yoon

Gwang Yun Kim

Taeg Jo Kim

Kyoung Don Yi

Soo Hyuk Lee

Kwang Hwan Lee

Youn Seon Jang

Deck Gyu Park

Sang Do Kwak

Jun Koo Lee

Cheol Ki Kim

Tae Ho Jung

Byung Soo Yoo

Chae Hong Lim

Jeong Jin Cho

Disclosed are a brake disk and a method for manufacturing the same. In particular, the brake disk may include a friction surface formed of cast iron, and the friction surface of the brake disk is divided into a plurality of sections in a circumferential direction. Preferably, an average of the numbers per unit area of eutectic cells formed on surfaces of the sections may not be greater than 300 ea/cm.

Brake disk and method for manufacturing the same

A brake disc, in which a hat part that is mounted on a hub and a disc part that provides friction surfaces with brake pads are made of different materials and are combined, includes: a plurality of bridges protruding and circumferentially arranged around an edge of the hat part for coupling to the disc part; a plurality of vanes defining a channel for air flow; and a plurality of coupling pillars, which are fixedly in contact with the bridges, respectively, arranged between a pair of disc plates. The coupling pillars are fixedly in contact with both sides of the bridges while exposing front ends of the bridges.

Brake disc

This invention relates to a paper friction material and a method of manufacturing the same, wherein the paper friction material is configured such that dispersibility and bondability are increased between a filler and a matrix. The paper friction material which is suitable for use in a vehicle, includes a friction base including pulp and a coating layer formed on the friction base using a mixture of latex and a functional material. The OH reactive group of the pulp and the aromatic ring of the latex are hydrogen-bonded so that the friction base and the coating layer are coupled with each other.

Paper friction material and method of manufacturing the same

A solid type brake disc includes a hat part that includes a circular body that is fitted on a rotary shaft of a wheel and a plurality of hollow protrusions that are formed around the outer surface of the body and each have an internal space. The solid type brake disc also includes a friction part that includes a ring body that has a center hole and receives the hat part in the center hole and projections that protrude toward the hollow protrusions and are inserted in the internal spaces to be covered with the hollow protrusions.

Solid type brake disc and manufacturing method of the same

A method of manufacturing a brake disc of heterogeneous materials, may include a disc device and a hub device formed in a cast-bonding manner using different materials, includes performing a first casting for casting the disc device using a grey cast-iron material, performing a preparation step by placing the disc device in a casting mold as an insert, performing a second casting for preparing a brake disc cast product by injecting molten aluminum alloy into the casting mold and casting the hub device to be cast-bonded to the disc device, and performing an oxynitriding process for forming an oxynitride layer by smoothing a surface of the brake disc cast product and performing heat treatment in a gaseous atmosphere at a temperature ranging from 425 to 500&#xb0; C.

Method of manufacturing brake disc of heterogeneous materials and brake disc of heterogeneous materials manufactured using the same

A method of manufacturing a brake disk made of gray cast iron is disclosed. The method includes casting a disk body using gray cast iron containing 3.1 wt % to 3.7 wt % of C; machining a surface of the cast disk body; nitriding the disk body by exposing the machined surface to a temperature in the range of 540&#xb0; C. to 580&#xb0; C. for 50 min to 70 min, and coating the nitrided disk body.

Brake disk and manufacturing method thereof

A vehicle brake pad includes a back plate layer, an underlayer, an adhesive layer that mediates between the back plate layer and the underlayer, and a friction material layer, wherein the vehicle brake pad does not include a shim and wherein at least one of the back plate layer, the adhesive layer, and the underlayer has a loss factor of 0.2 or higher, calculated according to the following Equation 1, at temperatures from &#x2212;100 to 300&#xb0; to damp noise of a frequency range of 200 to 20,000 Hz at temperatures from &#x2212;100 to 300&#xb0;: (Equation 1) Loss factor &#x3b7;=(f&#x2212;f)/f, where &#x3b7; is a loss factor, fis a noise frequency, fis a minimum value of amplitude of a noise frequency when a noise level is reduced by 3 dB, and fa maximum value of amplitude when the noise level is reduced by 3 dB.

Vehicle brake pad

Disclosed is a brake disc for vehicles including a ring-shaped disc part provided with an insertion space formed at the central region thereof, a hub part disposed within the insertion space and provided with recesses formed on the external circumferential surface thereof, and connection parts configured to connect the disc part and the hub part, wherein each of the connection parts is divided into a curved section extending from the internal circumferential surface of the disc part and having both curved side surfaces and a rectilinear section extending from the curved section, having both flat side surfaces and inserted into each of the recess, and widths of the curved section and the rectilinear section are decreased in a direction toward the hub part.

Disclosed is a solid-type brake disc including a hat part, which includes a circular main body mounted on a rotation shaft of a wheel, and a plurality of protrusions protruding in a circumferential direction from an outside surface of the main body, and a friction part, which includes a ring body having a through-hole formed in the center thereof for receiving the hat part in the through-hole, and recessed portions protruding from the periphery of the through-hole toward the respective protrusions, the recessed portions being connected to the respective protrusions to enclose the protrusions.

Solid-type brake disc and method of manufacturing the same

The system for reducing environmental pollutants according to the present invention comprises: a first water immersion tank for producing strongly alkaline water by receiving a supply of bottom ash, which has been created by and has been accumulated at the bottom of a combustion furnace, and reacting it with water accommodated on its inside; an elimination reaction tank which is provided on a combustion pathway extending from the combustion furnace, and which internally accommodates the strongly alkaline water supplied from the first water immersion tank, and which also eliminates carbon-based compounds contained in exhaust gases which are discharged through the combustion pathway; a sludge-storage tank for receiving and storing sludge which has been produced as a consequence of the elimination reaction within the elimination reaction tank; a first aggregate storage tank for receiving and storing bottom-ash aggregate remaining within the first water immersion tank after the neutralization which follows as a consequence of the production of the strongly alkaline water; and a second water immersion tank for supplying the elimination reaction tank with strongly alkaline water which is produced by reacting water, accommodated on its inside, with a supply of fly ash which has been generated by the combustion furnace and has accumulated in a dust-collecting device on the combustion pathway.

System for reducing environmental pollutants

A system for reducing a carbon compound of a heat engine includes: an outlet pipe transferring and outputting an exhaust gas from the heat engine; a removal reacting tank connected to the outlet pipe, the removal reacting tank generating a strong alkaline solution by a reaction of a resource material and a water and removing the carbon compound from the exhaust gas by a contact of the carbon compound and the strong alkaline solution; a sludge storing tank storing a sludge generated by a removal reaction in the removal reacting tank; and a decomposing tank generating the resource material for the removal reacting tank by decomposing the sludge from the sludge storing tank with a heat. Accordingly, since the carbon compound such as carbon dioxide is effectively removed from the exhaust gas emitted from a heat engine equipped in an industrial plant and a vehicle, atmospheric environmental pollution is prevented and regulation on carbon dioxide emission is satisfied.

System for reducing carbon compound of heat engine

Cradle for portable phone

Mobile phone

Growing community of inventors

Suwon-si, South Korea

Byung Chan Lee