Non {111}textures different from the normal ones in the trial of cold-rolled micro-carbon deep drawing steel sheets was introduced.

Mom St15 micro-carbon deep drawing steel sheets, two sets of samples with γvariant and △γ constant, and γ constant and △γ variallt, were selected to carry out texture measurement and ODF analysis.

A new process of finishing pass heavy drought was researched to enhance finished property of the micro-carbon deep-drawing sheet,experimental results show that the new process refines hot rolled grain obviously and advances the formation of cold rolled texture 〈111〉 greatly,thus enhances the cold rolling property(IE,n,r) remarkably.

Texture and modeling calculation of r values of deep drawing steel sheet;

Recrystallization and formation of {111} texture in micro-carbon deep drawing steel sheet

Influence of dissolved carbon content on recrystallization γ-fibre texture in ultra-low carbon deep drawing steel sheet with high purity was investigated and the relationships between dissolved carbons and recrystallization γ-fibre texture and {111} <112> and {111} < 110 > textures were analysed by 3-dimensional orientation distribution function.

It is analyzed the controlling-sulfur technique in smelting of SPHD deep drawing steel.

This paper according to the concrete application on Cold rolling deep drawing steel mechanical property optimization, introduces the idea of six sigma administration and main analytical method of DMAIC each phase.