Impact of softening condition on softening effect of rapeseed

By researching the change law of the elastic plasticity of rapeseed under the conditions of different water contents,softening temperatures and softening time,the adjustment of the process parameters during softening was guided in order to improve the quality of flakes and achieve the goal of energy saving and investment reduction. The results showed that when the water content of rapeseed was less than5. 27% or higher than 14. 87%,elastic plasticity was generally worse under the conditions of different softening temperatures and softening time. Under the condition of low softening temperature( 35 ℃),the elastic plasticity of rapeseed with higher water content( 11. 12%,13. 01%) was higher. The elastic plasticity of rapeseed showed a downward trend with softening temperature rising and softening time prolonging. The elastic plasticity of low water content( 7. 34%) rapeseed rose with softening temperature( below 75 ℃)rising and softening time prolonging. The elastic plasticity of rapeseed was better under the conditions of water content 8. 86%- 10. 27%,softening temperature 55- 65 ℃ and softening time 15- 35 min. The results of orthogonal experiment indicated that the optimal softening conditions of rapeseed were obtained as follows: water content 9. 35%,softening temperature 60 ℃ and softening time 25 min.