33results about How to "High temperature limit" patented technology

A plastic molding die provided with a cavity where a plastic material is put in, wherein a part of an inner surface of the cavity is configured with an elastic body. A molding portion corresponding to a molding surface of a molded product is disposed on the inner surface of the cavity, and the elastic body is arranged on a portion other than the molding portion of the inner surface of the cavity. The plastic molding die may be a molding die for compression molding. The elastic body is made of rubber, and has an upper temperature limit higher than a glass-transition temperature of the plastic material. The degree of rubber hardness of the elastic body is from 50 to 100.

The present invention relates to transient liquid phase sinter pastes for electronic interconnects, and sinter paste application and processing methods.

The invention relates to the technical field of nanocomposite material. A preparing method of a silver nanoparticle mixed filler modified silicone rubber conductive composite material is provided, and aims to solve the problems that silver nanoparticles prepared through a regular method have high surface energy which is prone to agglomeration, compatibility between the silver nanoparticles and a silicone rubber basal body is poor, and thus the silver nanoparticles is so hard to be evenly dispersed in the basal body that comprehensive performance of the composite material is affected. The preparing method comprises the steps of preparing silver nanoparticles by adopting a chemical reduction method and conducting surface modification by using a silane coupling agent so as to make the silver nanoparticles evenly disperse in an organic solvent, and with a combination of a silver nanowire, dispersing the silver nanoparticles and mixed filler of the silver nanoparticles into a silicone rubber basal body by adopting a solution blended process so as to prepare an elastic silicone rubber composite material with excellent electrical conductivity. The composite material not only has the advantages of being stable in resistance time property, high in temperature limit, controllable in resistance temperature coefficient and the like, but also has high elasticity of a rubber material.

Disclosed are a GOA circuit and a liquid crystal display panel. The GOA circuit is provided with a charging module (400) in each level GOA unit; the charging module (400) comprises a 71st thin film transistor (T71) and a diode (D1); a gate of the 71st thin film transistor (T71) is electrically connected to a connection point, i.e. a first node Q(N), between a pull-up control module (100), a pull-up module (200) and a download module (300); a source accesses an alternating current input signal (AC), a drain is electrically connected to a positive electrode of the diode (D1), and a negative electrode of the diode (D1) is electrically connected to the first node Q(N). The high and low potential times of the alternating current input signal (AC) correspond to the high and low potential times of a clock signal (CLOCK) accessed by the GOA unit in said level respectively, thereby continuously charging same by means of the charging module (400) when the first node Q(N) is at a high potential, which prevents circuit failure due to the current leakage of the first node Q(N), so that the GOA circuit has a relatively high temperate limit and is highly reliability.

Disclosed are a sapphire temperature sensor, a manufacturing method thereof, and a temperature measurement system. The sapphire temperature sensor includes: a heat protection device, a sapphire fiber probe, and a fiber coupler; one end of the sapphire fiber probe is a sensor head, and the other end is connected to the fiber coupler; the heat protection device is surrounded by the outside of the sapphire fiber; the sensor head is placed At one end of the heat protection device, the other end of the protection device is connected to the fiber coupler; the sensing head is composed of a black body cavity coated on the outer surface of one end of the sapphire optical fiber, and the black body cavity is heated by a variety of temperature-sensitive material particles through a plasma arc to melt state and evenly sprayed on the outer surface of one end of the sapphire fiber. The sapphire fiber optic temperature sensor made by plasma spraying method has the advantages of wide temperature measurement range, fast thermal response, high precision, long life, low cost and intrinsic insulation, and has more prominent advantages than traditional thermometers, such as corrosion resistance, Strong ability to resist electromagnetic interference.

A manufacturing method of high temperature macromolecule PTC thermal resistor relates to manufacturing method of the electronic component whose material mainly is crystalline hypo-crystalline high polymer and its mixture. A manufacturing method of high temperature PTC thermal resistor is that after the chip is forming, the chip is set in the heating equipment whose high polymer melting point is more than from five centigrade degree to thirty centigrade degree for from five minutes to fifty minutes, then slowly cooled to room temperature, later irradiated, and irradiation dosage range is 0.2- 0.7 times of which is from 20KGy to 5000KGy; after the irradiation , the chip is again set in the heating equipment whose high polymer melting point is more than from five centigrade degree to thirty centigrade degree for from five minutes to fifty minutes, then slowly cooled to room temperature, do the second irradiation, and the irradiation dosage range is 0.4- 0.8 times which is from 20KGy to 5000KGy.

The present invention provides a hydrophobic thermoplastic starch and method for manufacturing the same, to be used as granules for making biodegradable composites. The hydrophobic thermoplastic Starch of the invention is in a granule type, has the melt flow index in the range of 0.2-6 g / 10 min at 160° C. and has 60-80 wt % of starch and the water content less than 9%.

The invention relates to a high-temperature temperature and pressure optical fiber Fabry-Perot composite micro-nano sensor, which belongs to the technical field of optical fiber sensors. The sensor of the present invention comprises an optical fiber access section, a pressure sensor section and a temperature sensor section; the optical fiber access section is a solid-core optical fiber, the pressure sensor is a hollow-core thin-walled optical fiber, and the temperature sensor is another section of solid-core optical fiber; the present invention adopts The femtosecond laser processing method processes a cylindrical hole on the end face of two solid-core optical fibers, and then welds them to form a FP interference-type pressure chamber. One of the optical fibers is used as an optical fiber access section, and the other is cut. The optical fiber is ground into a section of solid-core optical fiber with a certain thickness to form a temperature sensor, and the decoupling of the two-parameter measurement is realized by controlling the cavity length difference between the temperature sensor and the pressure sensor. Compared with the prior art, the invention has the advantages of small structure size, high temperature resistance, simultaneous temperature / pressure measurement and no double parameter cross sensitivity.

A fuel cell (1) includes an anode (11), a cathode (14), an electrolyte layer (13) containing ceria and provided between the anode (11) and the cathode (14), and at least two intermediate layers containing zirconia and provided between the electrolyte layer (13) and the anode (11). The at least two intermediate layers include a first intermediate layer (18) that contains ceria and a second intermediate layer (19) that has a higher zirconia concentration than the first intermediate layer and is provided between the first intermediate layer and the anode.