Wen Guang Zhang

Static Characteristic Test of High Temperature Pressure Sensor

In this article, the necessity of static characteristic test of high temperature pressure sensor was discussed; the principle static characteristic test of high temperature pressure sensor is illustrated; the static testing of high temperature pressure sensor is completed; the static experimental model of high temperature pressure sensor is established; the main technical indexes was established, it provides an important theoretical basis for the application and test of high temperature pressure sensor.

3D Printing Technology and the Latest Application in the Aviation Area

The basic working principles of 3-D printing technologyare introduced, development situation of Additive Manufacturing technology athome and abroad are described. The present status and latest achievements ofrapid prototyping (RP) technology that apply in the field of aviation in homeand abroad are described and analyzed in detail. The importance of 3-D printingis pointed out for aeronautical manufacturing.

Research on Nanomaterials and its Latest Application

Nanotechnology decides the ability of human manipulation of the atoms and molecules, the goal is to master the ability to create new material and design to create the desired application products, and nanomaterials is the basis of the integration of a variety of nanotechnology. The connotation and development prospect of nanotechnology are introduced. The present status and the research emphasis in every stage of the nanomaterials are pointed out and nanomaterials are classified according to the different way. The characteristics of all kinds of nanomaterials and applications in all fields are analyzed.Key words: Nanomaterials; Nanotechnology; Fullerenes; Graphene; Carbon nanotubes

Finite Element Analysis of Capacitance Sensor

Capacitive sensor is a kind of parameter type sensor that capacitance is measured is converted to capacitance change. It is widely used in pressure, liquid level, displacement and other tests. In this article, the development status of capacitance sensor is showed; the working principle of capacitive sensor was introduced; through the method of grid subdivision, loading and solving of boundary conditions and the finite element post-processing, etc., the finite element analysis of capacitance sensor is complete, it has important guiding significance for capacitance sensor application research.

The Application of Modern Sealing Technology in Aircraft

With the development of modern aircraft industry, the structure of the plane becoming more and more complex, and the sealing of parts is becoming stricter. Traditional sealing technology began gradually revealed its deficiencies. In this paper, the sealing method of the hydraulic system, oil tank, window and cover of the aircraft is introduced in details. The effective ways to seal have been put forward, and it also offering technical reference to the aircraft parts manufacturer.

Common Fault Analysis and Repair of Three-Phase Motor

The common failures of three-phase motor are described, the specific reasons of failure are analyzed, the treatment of common failures are illustrated, the motor repair methods are summarized, the troubleshooting process is pointed out, the developing direction of common troubleshooting is put forward. For saving production resources, improving the efficiency of enterprises safety production and economic benefit, it has important guiding significance.

Analysis of Mechanical Characteristic of Three-Phase Asynchronous Motor

The functional relationship is analyzed between three-phase asynchronous motor electromagnetic torque and some factors; Mechanical characteristic curve of motor performance is drawn; The inherent mechanical properties and human mechanical properties are explored in a specific application. Facts prove that mechanical characteristic analysis of three-phase asynchronous motors, to reduce the failure rate of the three-phase induction motor, to improve the running capacity and production efficiency are important.

Analysis of External Gear Pump Failure

Several typical failures of external gear pump are presented. The reasons of the pump failure are analyzed in detail. Solutions of the failure are proposed. In order to improve the efficiency of pumps maintenance and reparation, a new kind of tool is mentioned which could predict the life of gear pump before failure occurred.

Study on Fault Diagnosis and Repair Strategy of CNC Machine Tool

CNC machine tool fault types, repair characteristics, the principle to be followed are described. The mechanical systems, Numerical control system, servo system fault diagnosis and repair for CNC machine tools are analyzed in detail. The strategy of the hardware faults such as main spindle part, the ball screw-nut pairs, cutter and tool change device, the strategy of the software repair are proposed.