119results about How to "Easy to adjust the thickness" patented technology

The invention relates to the technical field of high-temperature alloys, in particular to a single-crystal high-temperature alloy thin-wall casting based on secondary orientation control and a preparation method thereof. By adopting the method, single-crystal high-temperature alloy thin-wall castings with different primary orientations and secondary orientations can be prepared, and meanwhile, mixed crystals can be prevented from being generated. The single-crystal high-temperature alloy thin-wall casting based on secondary orientation control is prepared, a three-dimensional crystal orientation material with the optimal performance is selected to prepare a single-crystal high-temperature alloy blade by researching the thin-wall effect of the alloy under secondary orientation, and great significance is achieved for prolonging the service life of the single-crystal high-temperature alloy blade.

The invention relates to an automatic temperature control method and device for an optical fiber coating. The automatic temperature control device comprises an optical fiber coating device provided with a heating chamber, wherein the heating chamber of the optical fiber coating device is communicated with a circular heater through a circulating pipeline; liquid heat-conducting media are filled in the heating chamber, the circulating pipeline and the circular heater; and the circular heater is used for heating coating in the optical fiber coating device by circularly heating the liquid heat-conducting media. The automatic control method is characterized in that the automatic control method comprises the following steps of: arranging a processing control unit; controlling the heating process of the circular heater by acquiring a wire drawing speed sensing signal and a liquid heat-conducting medium temperature sensing signal and comparing the wire drawing speed sensing signal and the liquid heat-conducting medium temperature sensing signal with a preset parameter value through the processing control unit, thus realizing the automatic control and adjusting process of the temperature of the coating in the optical fiber coating device. According to the automatic temperature control method and device disclosed by the invention, the temperature of the coating can be automatically changed along with the wire drawing speed in the wire drawing process of optical fibers, and favorable matching between the temperature (viscosity) of the coating and the wire drawing speed is achieved, so that the quality of a coating layer on the surface of the optical fiber is ensured and the finished product rate of optical fiber processing is increased.

The invention discloses a flexible silica gel screen protection film, and belongs to the technical field of protection films. The flexible silica gel screen protection film mainly structurally comprises a PETrelease film, a hardened coating coated on the release surface of the PET release film, an organic silica gel layer coated on the hardened coating, an organic silicon pressure-sensitive adhesive layer coated on the organic silica gel layer, and a fluorine release film adhered on the organic silicon pressure-sensitive adhesive layer, wherein the hardened coating, the organic silica gel layer and the organic silicon pressure-sensitive adhesive layer are compounded into a use layer; the surface hardness of the use layer is HB-2H, the light transmittance is greater than or equal to 91%, the haze is less than or equal to 1%, and the softness is 25A-60A; and the thickness ratio of the hardened coating to the organic silica gel layer to the organic silicon pressure-sensitive adhesive layer in the use layer is (2-4): (40-50): (20-30). The flexible silica gel screen protection film has better flexibility and has more excellent fitting performance for curved edge amplitudes of an AF screen and a 2.5 D/3D screen and is not degummed during die cutting and can be directly fit with a curved screen for use without hot-pressing preforming, and can play a better role in protecting existingcurved screen electronic equipment.

The invention discloses a manufacturing method of a fine circuit board free of a corrosion resistant layer. The method comprises the processes of laminating, base copper reduction, drilling, depositing copper preplating, pattern electroplating, stripping and flash rusting and subsequent processes. According to the manufacturing method, the fine circuit board is manufactured by combining a thin copper foil with a flash rusting technology; the manufacturing method can be used for manufacturing an ultrafine circuit; and the manufacturing accuracy of the circuit is improved.

The invention relates to a method and a device for automatically controlling the temperature of optical fiber coatings in a wiredrawing process. The device comprises an optical fiber coating device, wherein a coating cavity of the optical fiber coating device is communicated with a charging bucket by a charging pipeline. The device is characterized in that the charging pipeline is externally provided with a controllable heater which is used for heating the coatings in the charging pipeline, the charging pipeline is externally provided with a processing control unit which is used for comparing an acquired wiredrawing speed sensing signal and charging pipeline temperature sensing signal with a preset parameter numerical value, so as to control the heating process of the controllable heater, so that the automatic controlling and adjusting process of the temperate of the coatings in the optical fiber coating device can be realized. According to the device and the method, the temperature of the coatings can be automatically changed along with the wiredrawing speed when the optical fiber is wiredrawn, so that the temperature (or the viscosity) of the coatings can be well matched with the wiredrawing speed, and therefore, the quality of a coating layer on the surface of the optical fiber can be guaranteed, and the machining yield of the optical fiber can be improved. The method and the device are simple in structure, and convenient to implement and popularize, so that the automatic level of optical fiber machining equipment can be improved.

The installation structure of the feet of the washing machine comprises a base under the housing, a bracket on the base, a feet assembly made of more than one foot on the bracket, and a step holding installation section for installing feet. It can also comprise housing, a bracket under the housing, the feet assembly made of more than one foot on the bracket. All of them join together at the bottom of the bracket to form the base of the bottom of the washing machine. It can improve the intensity of the bracket and reduce the resonance caused by the washing machine. It also improves assembly performance with stable support. At the bottom of the housing, sets a bracket with several feet, a base under the bracket. It adds the thickness of the installation sector, improves its intensity, and ensures the flexibility of the design with easily adjusted thickness of the bracket.

The invention relates to a non-dismantling heat preservation wall module unit. The non-dismantling heat preservation wall module unit comprises a pair of heat preservation boards and supporting connecting components arranged between the heat preservation boards. A high-strength EPS polystyrene board is adopted in each heat preservation board, the heat preservation boards have the advantages of being resistant to fire and water and good in heat preservation performance, the adjacent heat preservation boards are in seamless connection, operation is convenient, efficiency is high, and the construction period is short. A wall formed by cast-in-place concrete of the wall module unit is high in overall strength and seismic grade, and the probability of crushed collapse is completely eradicated. The wall is free of a cold bridge, the energy-saving effect is good, and saved energy can reach up to 80% compared with that of a common building. Grooves and rebar fixing boards are arranged on the supporting connecting components, rebars can be conveniently arranged and fixed, cross arrangement of the supporting connecting components is conveniently achieved, the supporting connecting components have multiple sizes, adaptability is high, and the thickness of the wall is conveniently adjusted. Split type design is adopted in the supporting connecting components, the occupied size is small in the transporting process, and transporting cost is greatly reduced.

The invention relates to the technical field of biomedical metal materials and oral implantation medical instruments, and provides a bone trabecula porous tantalum dental implant and a preparation method thereof. The bone trabecula porous tantalum dental implant provided by the invention has a cylindrical structure and sequentially comprises a top functional area, a middle functional area and a bottom functional area from top to bottom. The top functional area is of a compact structure, the middle functional area has a bionic bone trabecula porous structure, and the bottom functional area hasa compact structure. The bone trabecula porous tantalum dental implant is integrally prepared by taking pure tantalum or medical tantalum alloy powder as a raw material through an additive manufacturing technology. The bone trabecula porous tantalum dental implant provided by the invention is high in friction force, close to human bone in strength and modulus, excellent in bone ingrowth effect, high in implantation stability and long in service life, is of an integrated structure, and has no risk of delamination and separation during implantation.

The invention relates to the technical field of bathroom equipment and particularly relates to a bathtub water removing device integrating water feeding, water overflowing and water discharging. The bathtub water removing device comprises a water discharging device and a water overflowing and water discharging device, wherein the water discharging device is arranged at the bottom of a bathtub and is provided with a drive-by-wire switch; the water overflowing and water discharging device arranged on the wall of the bathtub; the water discharging device comprises a water discharging seat (2) which is communicated with a sewer pipe (1), and a choke plug (3) which covers the water discharging seat (2); the drive-by-wire switch is connected with the choke plug (3); the water overflowing and water discharging device is in a retractable structure capable of being adjusted according to the thickness of the wall of the bathtub; and a protection device for protecting the drive-by-wire switch is arranged between the drive-by-wire switch and the choke plug (3). The bathtub water removing device disclosed by the invention can be applicable to the bathtubs with different thicknesses and has an anti-trampling function.

The present invention relates to a MEMS microphone having less residual stress at a contact portion between a silicon substrate and a membrane, and to a method for manufacturing the MEMS microphone. The MEMS microphone comprises: a silicon substrate in which a back chamber is formed; a back plate deposited on the silicon substrate and including a plurality of sound holes; a membrane deposited on the silicon substrate and spaced apart from the back plate to form an air gap; and a stress buffer deposited between the membrane and the silicon substrate.