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玉米種子抗壓特性及裂紋生成規(guī)律
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高等學(xué)校博士學(xué)科點(diǎn)專項(xiàng)科研基金資助項(xiàng)目（200801570007）;河南省教育廳自然科學(xué)研究計劃資助項(xiàng)目（2011B210003）;河南科技大學(xué)自然科學(xué)領(lǐng)域科研創(chuàng)新能力培育基金資助項(xiàng)目（2009CZ0004）;河南科技大學(xué)博士科研啟動基金資助項(xiàng)目（09001235）


Anti-pressing Properties and Crack Formation Law of Corn Seed
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    摘要:

    為降低玉米種子脫粒過程中的機(jī)械損傷，掌握玉米種子抗壓特性及其裂紋生成規(guī)律,，在LDS微機(jī)控制電子拉壓試驗(yàn)機(jī)上,，對不同品種的玉米種子進(jìn)行了靜態(tài)壓縮試驗(yàn)。試驗(yàn)結(jié)果表明：最大破裂力隨含水率的增加而降低,；同一品種在相同含水率下,，平放時最大破裂力最大，立放時最小,，側(cè)放時居中,；同一放置方式時，不同品種玉米種子承載壓力的能力不同,；不同放置方式時,，不同受壓面生成裂紋的形狀、部位和規(guī)律不同,。

    Abstract:

    For reducing mechanical damage of corn seed in the process of threshing and mastering the law on anti-pressing properties and crack formation of corn seed, static compresses experiment of various varieties corn seeds were carried out on LDS microcomputer control and electron draw-press test-machine. Results showed that the largest breaking power would decrease with the increasing of seed humidity ratio. The largest breaking power was the biggest with levelplacing manner and in turn flankplacing manner took second place,，perpendicular-placing manner was the smallest. Anti-pressing competence of various varieties corn seeds was different under same placing manners. The shape, position and law of crack in various surface loaded was different under different placing manners. 

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李心平,李玉柱,馬福麗,高連興.玉米種子抗壓特性及裂紋生成規(guī)律[J].農(nóng)業(yè)機(jī)械學(xué)報,2011,42(8):94-98. Li Xinping, Li Yuzhu, Ma Fuli, Gao Lianxing. Anti-pressing Properties and Crack Formation Law of Corn Seed[J]. Transactions of the Chinese Society for Agricultural Machinery,2011,42(8):94-98.

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