| Forging Process Development of Thrust Cone Based on Simulation Technology |
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| 作者姓名： | WANG Meng-han QUAN Guo-zheng ZHOU Jie |
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| 作者单位： | 河北农业大学食品科技学院,保定,071001 |
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| 基金项目： | 河北省教育厅博士科研项目 |
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| 摘 要： | 以藁城、黄骅、沾化冬枣为试材,研究了不同产地冬枣采后贮藏过程中的品质变化.试验结果表明,藁城、黄骅、沾化冬枣的冰点分别为-3.5℃、-4.2℃、-3.9℃;在0℃贮藏条件下,随着贮藏时间的延长,不同产地冬枣硬度均随着贮藏期的延长而下降,VC含量逐渐减少,可滴定酸含量在贮藏过程中整体上呈下降趋势,沾化冬枣酸含量最高,藁城冬枣还原糖含量最小,在贮藏过程中变化较大.贮藏结束后各地冬枣硬度差异极显著(P＜0.01),VC含量差异显著(0.01＜P＜0.05),可滴定酸含量差异极显著(P＜0.01),还原糖含量差异极显著(P＜0.01);黄骅地区土壤中平衡的氮、磷、钾配比,适宜的气候条件,导致黄骅冬枣耐贮性优于藁城、沾化冬枣.
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| 关 键 词： | 冬枣 不同产地 采前因素 品质变化 不同产地 冬枣 贮藏特性 研究 Producing Different Characteristics Storage 耐贮性 气候条件 配比 平衡 土壤 黄骅地区 差异显著 硬度差异 变化 最小 糖含量 趋势 |
| 文章编号： | 1009-6221（2007）04-0012-04 |
| 修稿时间： | 2007-06-11 |
Forging Process Development of Thrust Cone Based on Simulation Technology |
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| WANG Meng-han,QUAN Guo-zheng,ZHOU Jie.Forging Process Development of Thrust Cone Based on Simulation Technology[J].Storage & Process,2007,7(4):12-15. |
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| Authors: | WANG Meng-han QUAN Guo-zheng ZHOU Jie |
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| Institution: | College of Food Science and Technology, Agricultural University of Hebei, Baoding 071001, China |
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| Abstract: | In order to develop forging process of thrust cone,its feasibility is analyzed.Two forging process schemes are proposed and simulated by using Metal plastic forming software DEFORM-3D.A forging process of accurate stock preparation,precise fix position and quick formation is made after optimized.The process is that saw cutting,upset and pre-forge on pneumatic hammer,finish-forge on friction press.Trial-manufacture indicates: forging process of thrust cone is feasible;wall thickness difference value of the forging piece is less than 1.5 mm;its plateness of friction surfaces is less than 0.7 mm;the further machining operation is not needed. |
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| Keywords: | dongzao jujube different producing areas factors before harvest quality changes |
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