| HWASHIN CO., LTD. Patent applications |
| Patent application number | Title | Published |
|---|
| 20100009114 | BEAM FORMED OF PLANK AND METHOD FOR MANUFACTURING THE SAME - A beam formed of a plank and a method for manufacturing the same are disclosed. The beam includes a body formed by bending a work object of a plank; a connection part formed at both ends of the body to engage with other members, and a bent part formed along the body. The beam facilitates formation of a shape imparting improved rigidity to the beam. | 01-14-2010 |
| 20090165923 | METHOD OF APPLYING ASPHALT WATERPROOFING MEMBRANE MATERIAL FOR BUILDINGS AND BRIDGE DECKS - Disclosed herein are a method of applying an asphalt waterproofing membrane material for buildings and bridge decks using sawdust. More specifically, disclosed is a method for applying a waterproofing membrane composition having excellent waterproofing ability using sawdust, such that the composition is not broken down by external force and can function as a waterproofing material. | 07-02-2009 |
| 20080289393 | HOT FORMING AND IN-SITU COOLING OF METALLIC ARTICLES - Disclosed herein is a hot forming method and apparatus that can improve strength of a product via die operation. The hot forming apparatus includes a lower die on which a workpiece is placed, an upper die coupled to the lower die to press the workpiece, a holder disposed between the upper and lower dies to form an inner space of the workpiece, and a cooling unit to cool the workpiece. The hot forming method includes coupling an upper die, a lower die and a holder with a workpiece placed on the lower die, followed by pressing the workpiece to perform a hot forming operation, determining whether or not a preset time has elapsed after pressing the workpiece, and cooling the workpiece by supplying a cooling fluid around the workpiece, if the preset time has elapsed. | 11-27-2008 |
