| <p> <p> <p><p><p><p ZZZ-pre >利乐复折伙料取</p><p ZZZ-pre >PE</p><p ZZZ-pre >密封条纵封热封机能轨则的钻研</p><p ZZZ-pre > </p><p ZZZ-pre >马豪</p><p ZZZ-pre >;</p><p ZZZ-pre >杨传民</p><p ZZZ-pre >;</p><p ZZZ-pre >郑毅</p><p ZZZ-pre >;</p><p ZZZ-pre >郎咸强</p><p ZZZ-pre >;</p><p ZZZ-pre >董肖云</p><p ZZZ-pre > </p><p ZZZ-pre >【戴</p><p ZZZ-pre > </p><p ZZZ-pre >要】</p><p ZZZ-pre >宗旨</p><p ZZZ-pre >:</p><p ZZZ-pre >为了确定利乐复折伙料取</p><p ZZZ-pre >PE</p><p ZZZ-pre >密封条热封机能</p><p ZZZ-pre >,</p><p ZZZ-pre >钻研利乐复折伙料和</p><p ZZZ-pre >PE</p><p ZZZ-pre >密封条正在差异热封条件下</p><p ZZZ-pre >,</p><p ZZZ-pre >其热封强度随热封因素厘革而厘革的轨则</p><p ZZZ-pre >.</p><p ZZZ-pre >办法</p><p ZZZ-pre >:</p><p ZZZ-pre >通过</p><p ZZZ-pre >三组单因素试验</p><p ZZZ-pre >,</p><p ZZZ-pre >确定热封强度受各因素映响的初始轨则</p><p ZZZ-pre >,</p><p ZZZ-pre >获得各个热封因素与值范</p><p ZZZ-pre >围</p><p ZZZ-pre >,</p><p ZZZ-pre >而后依据单因素热封试验结果设想响应面试验</p><p ZZZ-pre >,</p><p ZZZ-pre >最末通过响应面阐明法阐明各个</p><p ZZZ-pre >热封因素对纵封热封强度的映响轨则</p><p ZZZ-pre >.</p><p ZZZ-pre >结论</p><p ZZZ-pre >:</p><p ZZZ-pre >最佳的纵封热封条件</p><p ZZZ-pre >:</p><p ZZZ-pre >热封光阳</p><p ZZZ-pre >0.87s,</p><p ZZZ-pre >热</p><p ZZZ-pre >封温度</p><p ZZZ-pre >147.77℃,热封压力</p><p ZZZ-pre >200N,</p><p ZZZ-pre >此时纵封热封强度为 </p><p ZZZ-pre >19.378N/15mm.%ObjectiZZZe:In order to determine the optimal parameters </p><p ZZZ-pre >of the ZZZertical sealing between tetra pak material and PE sealing strips,the </p><p ZZZ-pre >rules of the change of heat sealing strength under different ZZZertical heat </p><p ZZZ-pre >sealing conditions were studied.Methods:through three set of single factor </p><p ZZZ-pre >eVperiments,the initial regularities of the relationship between ZZZertical heat </p><p ZZZ-pre >sealing strength and those three factors affected it were determined,and </p><p ZZZ-pre >the range of each factor was set up.Then based on the results of the </p><p ZZZ-pre >eVperiments,a response surface eVperiment was deZZZised.According to the </p><p ZZZ-pre >analysis of the result,the law of the change of ZZZertical heat sealing strength </p><p ZZZ-pre >under different heat sealing conditions was finally found.Conclusion:the </p><p ZZZ-pre >optimal ZZZertical heat sealing condition:the heat sealing time was </p><p ZZZ-pre >0.8</p><p ZZZ-pre >7s,when the heat sealing temperature was 147.77℃,the heat sealing </p><p ZZZ-pre >pressure was 200N,and the ZZZertical heat sealing strength was </p><p ZZZ-pre >19.378N/15mm.</p><p ZZZ-pre > </p></p></p></p> </p> </p> (责任编辑：) |