| 1. | Over the life of the mold , corrosion in the cooling channels decreases cooling efficiency thus degrading part quality and increasing cycle time 超过模具生命的,冷却系统的腐蚀降低了冷却的效率,因此会降低产品的质量并且增加成型时间。 |
| 2. | Results indicate that the project can largely cut down the prototyping time as well as and be one of effective ways to solve the problem of prototyping efficiency 结果表明,此方案可大幅缩短成型时间,是解决成型效率问题的有效途径之一。 |
| 3. | The article also presents the design theory and implement of molding process control , simulation and machine - time estimation . finally , the control software with above functions is developed 论文也对成型加工过程进行了较为细致的分析,并在此基础上,提出了成型过程控制、成型过程仿真及成型时间预测功能的设计原理和方法。 |
| 4. | Just on the basis of all above opinions , the research on the forming precision , forming time , scanning path , post - treatment and rt of sls on the high molecular powder materials is preceded 作者正是基于以上观点,就高分子粉末材料的激光选区烧结( sls )快速成型技术中的成型精度、成型时间、扫描路径、成型件的后处理及成型件在制模中的应用等问题开展了深入的研究。 |
| 5. | Abstract : aim at the photocurable sterelithography in which micro - components are made according to point - to - point exposure , the paper describes that this method takes long prototyping time , and it is one of main factors to restrict extension and application 文摘:采用离散点曝光方式来制作微型构造物的光固化快速成型法,其成型时间长,这一问题是制约微型光固化快速成型技术迅速推广应用的主要因素之一。 |
| 6. | This model and the experiment solution can restrict the calculating error of the forming time to seconds which have important reference to externally quoting , arranging the working sequence and balancing the priority between the process efficiency and prototyping function of sls provider 该模型和实验方法可将sls成型时间的计算误差控制在秒内,这对于sls服务方的对外报价、安排作业顺序和权衡加工效率与成型件性能之间的优先权有十分重要的参照作用。 |
| 7. | 4 . the optimistic resin system and the effect of resin content on the targets performance are discussed by orthogonal experiments , based on which , the moulding process parameters such as temperature , pressure , cycle and post - cure temperature are designed optimistically 4 、通过正交试验确定了最佳树脂体系,确定了含胶量对靶板性能的影响,在选定基体材料基础上,通过正交试验分析,对复合材料成型工艺参数如:成型温度、成型压力、成型时间、后处理温度进行了优化设计,确定了体系的最佳成型工艺参数。 |
| 8. | Abstract : the tolerance and generation of the stair - error in rp were studied . by using the normal vector information of the tringon facets in stl file , a calaculating method of stair - error was proposed and a slice - adapt algorithm which will save the time of mold manufacturing was presented 文摘:研究了快速成型过程中阶梯误差的产生与度量,并利用stl文件中的三角形面片的法矢量信息给出了阶梯误差的计算方法,提出了可变分层厚度的算法,采用自适应分层来减少成型时间的方案 |
| 9. | In addition , influence to density and strength of cement - stabilized soil because of molding delay and reasonable curing period from completion of subbase to the compaction of road - base are also researched . finally , experiment section of cement - stabilized silty soil subbase is constructed according to lab research results , and construction methods are summarized 此外,研究了延迟成型时间对水泥稳定土的密度和强度的影响及底基层成型后至基层压实前的合理养生龄期,最后,根据大量的室内研究成果进行了大剂量水泥稳定粉质土底基层试验路的铺筑,并对施工工艺进行了总结。 |
| 10. | Based on the studies , it is proved that lime fly - ash mixture is provided with more time to compact during construction compared with other base materials in forming even higher structure strength but not in reducing strength within 1 ~ 3 days period of time . meanwhile , structure strength of the mixture which has been destroyed by some reasons can be recovered in a great extent if original structure is regained . on the other hand , during the high temperature summer season or under other conditions promoting the mixture to form strength , continuous construction process between lime fly - ash base course and bituminous pavement can be carried out to complete the building process in short time 确认二灰基层材料与其它类型的基层材料相比,在施工时具有较长的施工碾压成型时间,在一定时间里延迟成型的二灰基层强度不仅不降低,反而还有一定程度的提高;与此同时早期受到破坏的二灰材料在恢复整体性的条件下,结构强度能够在很大程度上得到再恢复;另一方面,在夏季高温季节以及在强化基层强度形成的前提下,二灰类基层和沥青面层可以采用连续施工的方式在较短的时间里完成路面铺筑工作。 |