temper time
2.The quantitative relationship of pulp yield or residual lignin contents with some variables,e. g. cooking temper- ature,time to and at temperature,Na_2SO_3 or NaOH charge,and AQ addition as well as Na_2SO_3 or NaOH concentra- tion in the cooking liquor during neutral sodium sulfite pulping(NS),kraft pulping(KP)and Soda-AQ pulping of wheat straw were studied on a laboratory scale.
7.The effects of quenching temper ature, aging temperature and time on microstrain △a/a have been investigated by means of X-ray diffraction. As shown in the electron transmission micro graph the reverted austenite disperses along ihebound aries of martensite, thus improving the impact toughness ak.

