Based on the failure analysis of middle stage boiler,the repair methods were presented in this article,which can be referenced in the repair of other same kind of equipment.

According to concrete conditions of the 4 tanks, repair measures were put forward with respect to linear energy control, repair of surface and interior welding defects as well as heat treatment.

Fiber damage and technological measures in carding process;

Therefore,turning to reverse progress,by using the center rest and follower rest reasonably,adding the best tool geometric parameters,the amount of cutting,and so on,a series of effective technological measures,we can achieve processing requirements.

The paper described some different kinds of stainless steels used in construction and other fields,the welding quality and technological measures were also included in this paper.

Analysis on Etching of Slag Line Brick of Ladle for Refining Steel Cord of Tyre and Technology Measure for Increasing Service Life;

Different technology measures for improving fatigue life of submarine s important structures are analyzed and discussed in this paper.