Abstract: A method for producing an internal antenna with an anti-electromagnetic interference property by performing a vacuum process, which includes (1) performing a surface pretreatment process on an insulating substrate to clean the surface thereof, (2) placing the substrate into a vacuum chamber, and performing a first plasma bombardment by using a conductive target material; (3) placing the substrate into another vacuum chamber, and performing a second plasma bombardment by using a passivation target material; (4) removing a certain part of the passivation layer and the conductive layer, such that a planar antenna pattern is remained with a certain distance spaced apart from the surrounding passivation layer and conductive layer. The conductive layer and the passivation layer cover the surface of the substrate for completely shielding the electromagnetic interference, and meanwhile, the planar shape of the antenna saves the cost and the available space within the housing.

Abstract: A composition of a high impact glass fiber reinforced flame-retardant engineering plastic and a method thereof, which the method includes except for glass fiber, from 30% to 60% by weight of a polyamide 6, from 8% to 25% by weight of an acrylonitrile-butadiene-styrene copolymer, from 3% to 6% by weight of a compatilizer, from 4% to 10% by weight of a flexibilizer, from 12% to 16% by weight of a flame retardant, from 0.3% to 0.5% by weight of an antioxidant, and from 0.3% to 0.8% by weight of a lubricant are added into a high-speed mixer, and mixed for 2-5 min, and the blend composition is fed into a twin screw extruder, and from 18% to 30% by weight of a glass fiber are added into the twin screw extruder at the second half stage, and ground together to be granulated and molded.

Abstract: A composition of a glass fiber reinforced engineering plastic and a preparation method thereof are provided. The method includes: except for glass fiber, from 30% to 70% by weight of a polyamide6, from 8% to 30% by weight of an acrylonitrile-butadiene-styrene copolymer, from 3% to 6% by weight of a compatilizer, from 12% to 16% by weight of a flame retardant, from 0.3% to 0.5% by weight of an antioxidant, and from 0.3% to 0.8% by weight of a lubricant are added into a high-speed mixer, and then mixed for 2-5 min. The blend composition is fed into a twin screw extruder, and from 18% to 35% by weight of a glass fiber are added into the twin screw extruder at the second half stage, and ground together to be granulated and molded.

Abstract: A composition of a high impact glass fiber reinforced engineering plastic and a preparation method thereof, including except for glass fiber, from 30% to 70% by weight of a polyamide6 (PA6), from 15% to 25% by weight of an acrylonitrile-butadiene-styrene copolymer (ABS), from 4% to 6% by weight of a compatilizer, from 0.3% to 0.5% by weight of an antioxidant, and from 0.3% to 0.6% by weight of a lubricant are firstly added into a high-speed mixer and then mixed for 2-5 min. The blend composition is fed into a twin screw extruder, and from 10% to 30% by weight of a glass fiber is added into the twin screw extruder at the second half stage, and ground together to be granulated and molded. During the preparation, the process temperature is from 180° C. to 245° C., the screw rotating speed is from 240 rpm to 560 rpm.

Abstract: A heatsink clamper includes a buckle piece and a main body. The buckle piece includes a latch member buckled to a side of a seat that mounts the heatsink and the hot element of an electronic device, and a press member one end pivoted on an end of the latch member and another end includes a latch end correspondent to the latch portion of the latch member. The latch member includes a latch portion and a raised end. The main body includes a buckle latched to another side of the seat, and a pressing arm linked together included a hole correspondent to the raised end for passing through the raised end and moving relatively. When pressing the press member to move the latch end into the latch portion, the pressing arm is also pressed and deformed to provide a pressure to the heatsink through a receptacle groove.