With reference to the production process, the failure of drawing rod in the beginning of horizontal continuous casting of wire rod has been analyzed and the necessary pulling speed has also been derived theoretically.

The stability of microstructure transformation and surface decarbonization in production of steel wire for family use sartorius needle are two more important factors affecting the quality of steel wire for needle.

Some references are provided for the process technology improvement and development of silk knitting sector by the analysis of the sector's present situation, product and materials, process technology characteristics and so on, as well as the prospect for the process technology of it.

Through three kinds of pretreatments of silk and the quality analysis of the knitted fabrics of silk, we can draw such a conclusion that the proper coefficient of friction is a main factor in the silk knitting process.