31results about How to "Guaranteed Surface Integrity" patented technology

The invention discloses a graphite multi-polarization fine purifier and a graphite multi-polarization fine purification method. The graphite multi-polarization fine purifier comprises a bracket, a drying box, a water outlet valve, a purification box, a steam valve, a feeding hole, a stirring device, a water pipe, a water tank and a control box, A bracket is welded at the bottom of the purification box; the bottom side of the purification box is connected with a water outlet valve; the water tank is arranged above the purification tank and is communicated with the top of the purification tank through a water pipe; the feeding hole is formed in the top side surface of the purification box; the steam valve is arranged on the side of the purification box; a control box is mounted on the outer side of the purification box; the drying box is connected to the bottom of the purifying box; a stirring device is mounted in the purification box; and the stirring device is electrically connected with the control box. The device has the beneficial effects that stirring blades are replaced with the rotating strip composed of the pull ropes and the air bags; due to the elasticity of the air bags, buffering is formed when the air bags collide with graphite, so that abrasion to the surface of the graphite is avoided, the surface integrity of the graphite is guaranteed, the rotating strip continuously moves up and down under the action of the magnetic poles, stirring can be more comprehensive, and the stirring efficiency is improved.

The present invention discloses an open tube HgTe source Te-Cd-Hg epitaxial material heat treatment method. The stable mercury steam pressure required for heat treatment is provided by adopting graphite box structure. Said graphite box also can be implemented by utilizing improved liquid-phase epitaxial graphite boat, and its open tube process provides a way for batch production of the part. The success rate of using said process to make hole conduction heat treatment can be up to 100%. The hole density of the material of 77K temp. can be arbitrarily regulated in the range of 5X10 to the power 15 to 5X10 to the power 16 cm (-3). At the same time, the dislocation of material surface in the course of heat treatment does not produce increment effect, and the material composition and appearance form can be better retained.

The invention discloses a loudspeaker unit support structure and a loudspeaker system, including a loudspeaker installation unit and a loudspeaker unit. The loudspeaker unit is fixedly installed in the loudspeaker installation unit. According to different types of loudspeaker installation units, different loudspeaker unit fixing methods can be selected and used , multiple speaker units are set in the speaker installation unit, the speakers of each speaker unit are set independently, and they are started together when in use to increase the overall playback volume of each speaker unit, reduce the playback burden of a single speaker, and fix the speaker inside the support mechanism by bolts , the electric telescopic rod drives the clamping arm to press inward to fix the speaker. When dismounting, the fixing bolt is released, and the anti-magnetic sleeve is turned to make the push rod feed upwards to realize the ejection of the speaker. Pry up to avoid damage to the speaker caused by metal tools during assembly and disassembly, which is more practical.

The invention relates to a spraying preparation method of a layered composite oxide carrier, which mainly solves the shortcomings that the spraying and drying cannot be uniformly and continuously performed at the same time, the coating spraying and drying are not uniform and consequently the coating quality and production efficiency are low. The invention solves the problems preferably by adopting a technical method which feeds the required core carrier into the inner cavity of a circular spraying device with compressed gas in a suspension manner, sprays the coating oxide slurry containing a binder on the surface of the core with a spray gun in the inner cavity to obtain a precursor I of the layered composite carrier, collects the precursor I and circularly sprays or directly dries and roasts the precursor to obtain the layered composite oxide carrier. The method can be widely applied to the industrial production for preparing the layered composite carrier in the chemical industry.

The invention relates to a mechanical hammering flattening device which is installed on a numerically-controlled machine tool or a robot. The mechanical hammering flattening device is characterized by comprising a machine frame, a piezoelectric ceramic actuator, a supporting frame, a motor, a hammering head and an air gun, wherein the piezoelectric ceramic actuator, the supporting frame, the motor, the hammering head and the air gun are arranged on the machine frame. The supporting frame is slidably arranged on the machine frame according to a preset track, an inner shaft of the piezoelectric ceramic actuator is fixedly connected with the supporting frame, the motor is fixedly arranged on the supporting frame, a motor output shaft is in transmission connection with the hammering head, and the air gun is arranged on the side of the motor output shaft and connected with an external connection power source. An air outlet of the air gun is aligned with an acting point of the hammering head on a workpiece. The mechanical hammering flattening device is used for processing the plane or free-form surface workpiece, and not only is high in processing efficiency, but also can improve workpiece surface hardness.