Abstract: Provided is a semi-noncombustible building thermal insulation material including: a core layer; and a noncombustible coating layer formed with a thickness of 0.1 to 3 mm on one or both sides of the core layer, wherein the noncombustible coating layer includes aluminum oxide, silicon oxide, sodium silicate, and calcium carbonate.

Abstract: A method of attaching heterogeneous materials comprising pretreating the surface of a metal plate with an aromatic compound containing a pyrogallol group to bind the pyrogallol group to the surface of the metal plate and coating the pyrogallol-group-bound metal plate with a polymer resin, thereby greatly improving the adhesive strength between the metal plate and the polymer resin.

Abstract: Disclosed is a method of attaching heterogeneous materials, for example, a metal plate and a polymer resin, by greatly improving the adhesive strength between the heterogeneous materials, for example, the metal plate and the polymer resin. Particularly, the method may include pretreating the surface of a metal plate with an aromatic compound containing a pyrogallol group to bind the pyrogallol group to the surface of the metal plate and coating the pyrogallol-group-bound metal plate with a polymer resin, thereby greatly improving the adhesive strength between the metal plate and the polymer resin through a simple process.

Abstract: The present invention relates to a bus conductor connection structure for electric field relaxation. The bus conductor connection structure for electric field relaxation includes: an enclosure filled with an inert gas; spacers coupled to two side end portions of the enclosure in a facing contact manner and having connection conductors; conductors provided with predetermined intervals being maintained inside the enclosure; and coupling portions formed in end portions of the conductors, wherein the coupling portion is coupled to the connection conductor in a close contact manner with bolts. Accordingly, the bus conductor connection structure for electric field relaxation is allowed to simply fixing conductors and assembling bolts of a gas insulated bus and to reduce a size of the bus by shortening an insulation distance between the bus and the ground by using a shape and arrangement for electric field relaxation.

Abstract: The present invention relates to a bus conductor connection structure for electric field relaxation. The bus conductor connection structure for electric field relaxation includes: an enclosure filled with an inert gas; spacers coupled to two side end portions of the enclosure in a facing contact manner and having connection conductors; conductors provided with predetermined intervals being maintained inside the enclosure; and coupling portions formed in end portions of the conductors, wherein the coupling portion is coupled to the connection conductor in a close contact manner with bolts. Accordingly, the bus conductor connection structure for electric field relaxation is allowed to simply fixing conductors and assembling bolts of a gas insulated bus and to reduce a size of the bus by shortening an insulation distance between the bus and the ground by using a shape and arrangement for electric field relaxation.

Abstract: Provided is a method for manufacturing a composite material having a thin thickness, a low thermal expansion coefficient and a high thermal dissipation characteristic, the composite material manufactured by the manufacturing method, and a copper clad laminate using the composite material. The composite material using a unidirectional carbon fiber prepreg fabric manufactured through the steps of: manufacturing a unidirectional carbon fiber prepreg; cutting the manufactured unidirectional carbon fiber prepreg to a given width; weaving the unidirectional carbon fiber prepreg cut to the given width to form a fabric; and curing the woven unidirectional carbon fiber prepreg fabric.

Abstract: Provided is a method for manufacturing a composite material having a thin thickness, a low thermal expansion coefficient and a high thermal dissipation characteristic, the composite material manufactured by the manufacturing method, and a copper clad laminate using the composite material. The composite material using a unidirectional carbon fiber prepreg fabric manufactured through the steps of: manufacturing a unidirectional carbon fiber prepreg; cutting the manufactured unidirectional carbon fiber prepreg to a given width; weaving the unidirectional carbon fiber prepreg cut to the given width to form a fabric; and curing the woven unidirectional carbon fiber prepreg fabric.

Abstract: A door structure of a microwave oven usable as a pizza oven, wherein a pan is coupled to an inner surface of the door such that the pan is integral with the door, and a handle is mounted to an outer surface of the door. The handle has various structures so that the handle is separable from the door or is hingably mounted to the door to move between a folded state and an unfolded state. The door structure may be configured to simultaneously open the door and eject the pan. The user can stably open and close the pizza oven door, using only a handle, under the condition in which the pizza oven door and pizza tray are not supported. The handle has a structure capable of effectively supporting the weight of the oven door while having a foldable structure so that the handle can be conveniently used.

Abstract: A door structure of a microwave oven usable as a pizza oven, wherein a pan is coupled to an inner surface of the door such that the pan is integral with the door, and a handle is mounted to an outer surface of the door. The handle has various structures so that the handle is separable from the door or is hingably mounted to the door to move between a folded state and an unfolded state. The door structure, may be configured to simultaneously open the door and eject the pan. The user can stably open and close the pizza oven door, using only a handle, under the condition in which the pizza oven door and pizza tray are not supported. The handle has a structure capable of effectively supporting the weight of the oven door while having a foldable structure so that the handle can be conveniently used.

Abstract: A door structure of a pizza oven incorporated in a microwave oven. The door structure has a seal locking means mounted thereon to bring the door into close contact with an inlet of the oven chamber. The seal locking means includes a handle mounted to an outer surface of the door; a locking lever mounted to a hinge in the interior of the door; a pusher extending from one end of the locking lever and being arranged beneath the handle; a locker formed at the other end of the locking lever and that is configured to engage an inlet edge of the oven chamber; and an elastic member disposed between the pusher and the handle to bias the pusher away from the handle, and thus, to engage the locker with the inlet edge of the oven chamber. The seal locking means can further include an elastic seal pad attached to the locker or the inlet edge of the oven chamber.

Abstract: A door structure of a microwave oven usable as a pizza oven, wherein a pan is coupled to an inner surface of the door such that the pan is integral with the door, and a handle is mounted to an outer surface of the door. The handle has various structures so that the handle is separable from the door or is hingably mounted to the door to move between a folded state and an unfolded state. The door structure, may be configured to simultaneously open the door and eject the pan. The user can stably open and close the pizza oven door, using only a handle, under the condition in which the pizza oven door and pizza tray are not supported. The handle has a structure capable of effectively supporting the weight of the oven door while having a foldable structure so that the handle can be conveniently used.

Abstract: A door structure of a microwave oven usable as a pizza oven, wherein a pan is coupled to an inner surface of the door such that the pan is integral with the door, and a handle is mounted to an outer surface of the door. The handle has various structures so that the handle is separable from the door or is hingably mounted to the door to move between a folded state and an unfolded state. The door structure may be configured to simultaneously open the door and eject the pan. The user can stably open and close the pizza oven door, using only a handle, under the condition in which the pizza oven door and pizza tray are not supported. The handle has a structure capable of effectively supporting the weight of the oven door while having a foldable structure so that the handle can be conveniently used.

Abstract: A microwave oven with a toaster includes a toaster casing, a heating chamber inserted in the toaster casing, a bread receiver slidably inserted in the toaster casing, and a toaster door attached to a front side of the bread receiver. The bread receiver is selectively placed in the heating chamber. The microwave oven further includes a crumb tray slidably inserted in the toaster casing for collecting crumbs of bread and a holding unit for holding bread put in the bread receiver. The crumb tray is placed under the bread receiver. Further, there is provided a process for controlling a heater of the toaster, which is capable of properly baking bread even when the toaster is continually operated.

Abstract: A microwave oven with a toaster includes a toaster casing, a heating chamber inserted in the toaster casing, a bread receiver slidably inserted in the toaster casing, and a toaster door attached to a front side of the bread receiver. The bread receiver is selectively placed in the heating chamber. The microwave oven further includes a crumb tray slidably inserted in the toaster casing for collecting crumbs of bread and a holding unit for holding bread put in the bread receiver. The crumb tray is placed under the bread receiver. Further, there is provided a process for controlling a heater of the toaster, which is capable of properly baking bread even when the toaster is continually operated.