Laboratory test on tensile strength of coal piece by sleeve fracturing technique;

In this paper the principle of shaft lining stress measurement by sleeve fracturing and fundamental for-mulus for shaft lining stress analysis are described .

The authors have carried out tensile strength test of irregular rock sample bysleeve fracturing technique.

The basic principle,experiment device and testing method of Brazil test method and sleeve fracturing method are introduced to determine the tensile strength of coal in lab.

Centrifugal Casting Technology for HighQuality Tin Bronze Sleeve;

Development of sleeve type high temperature and high pressure solenoid valve

The paper introduces extrusion joint technology for sleeve of ribbed reinforcing steel bar such as definition,application scope,main advantage,matters to be attended to in course of construction and some requirements on quality.

Analysis and experiment of the optimum shrink range between chain plate and bush for agricultural machinery chain by using finite element method;

Three-dimensional modeling software was used to establish interior flow field model of a generally used bush-type control valves.

Numerical Simulation on Cold Extrusion Process of Automobile Starter Socket;

The theory of vertically threaded reinforcements socket joint is that, the ends of two seperate bars are vertically threaded and turned into a socket joints,so that these two seperate bars are fully connected as one perfect bar.