Entity

Time filter

Source Type

Taoyuan, Taiwan

Chang C.-W.,National Taiwan University | Chen P.-H.,Fu Sheng Industrial Co. | Hwang K.-S.,National Taiwan University
Materials Transactions | Year: 2010

Silica particles are often found in sintered 17-4PH stainless steels when water atomized powder is used. To eliminate the SiO 2 particles and to improve the mechanical properties and corrosion resistance, graphite powders were mixed in this study with 17-4PH powders and binders during the kneading step of the powder injection molding process. The measurements of carbon and oxygen contents in tensile specimens and microstructure observations confirm the reduction of silica particles by graphite powders during vacuum sintering. The optimum content of the graphite addition is 0.26 mass%, with which most SiO 2 particles are reduced and the final carbon and oxygen contents are 0.03 and 0.01 mass%, respectively. These changes of compositions decrease the amount of δ-ferrite in the as-sintered compact to 4 vol%, lower than the 10 vol% of the compact without any graphite additions. After solutioning and aging treatment, the hardness, tensile strength, and ductility are HRC 41, 1310MPa, and 9.0%, respectively. These properties are better than the typical values of 17-4PH reported in the literature and the corrosion resistance remains similar to that without any graphite additions. The relevant mechanisms on the changes of these properties are discussed with a focus on the effects of graphite addition on the residual carbon content, fractions of δ-ferrite and martensite, silica amount, and density. ©2010 The Japan Institute of Metals. Source


Patent
Fusheng Industrial Co. | Date: 2014-07-14

An air compression system includes an air compression device and a cooling structure. The air compression device includes a liquid-cooled motor and a compressor. The cooling includes a radiator, a cooler, a first liquid conveying tube, a second liquid conveying tube, a third liquid conveying tube, a fourth liquid conveying tube and a cooling liquid. The radiator interconnects the compressor for cooling a lubricating liquid in the compressor; the first liquid conveying tube interconnects the radiator and the cooler; the second liquid conveying tube interconnects the radiator and the cooler; the third liquid conveying tube interconnects the liquid-cooled motor and the cooler; the fourth liquid conveying tube interconnects the liquid-cooled motor and the cooler; and the cooling liquid is filled into the cooler, so as to reduce the space occupied by the cooling structure.


Trademark
Fusheng Industrial Co. | Date: 2012-05-08

Industrial oils, engine oils, oils for compressors and air compressors, motor oils, industrial lubricants, lubricating grease, lubricating oil, gear oils, fuel oils; crude oils, heavy oils, light oils.


Trademark
Fusheng Industrial Co. | Date: 2013-05-21

Air cooling apparatus; air-conditioning, air cooling and ventilation apparatus and instruments; air filters for air conditioning units; air filters for industrial installations; air purifying units for commercial and industrial use; industrial air filter machines; electric space cooling apparatus for household purposes; dryers for the removal of water vapor from compressed air and gases; dryers used for the removal of solid, liquid and vapor contaminates from compressed air and gases; industrial dryers for heating and dehumidifying; drying apparatus and installations, namely, compressed air dryers; air-cooled rotary screw chiller and air-cooled rotary scroll chiller; water-to-water high-temperature energy-saving machine, namely, heat pumps; directly-heated air-to-water energy-saving machine, namely, heat pumps; apparatus for the exchange of substances and heat for use in the production of steam, for use in cooking and for use in refrigeration.


Fs

Trademark
Fusheng Industrial Co. | Date: 2012-03-13

Industrial oils, engine oils, oils for compressors and air compressors, motor oils, industrial lubricants, lubricating grease, lubricating oil, gear oils, fuel oils; crude oils, heavy oils, light oils.

Discover hidden collaborations