欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
对显著影响平板微小器件注塑成型的翘曲现象进行了研究。为了减少翘曲量,以带十字微沟槽的微流控芯片的基片为研究对象,研究了注塑工艺涉及的工艺参数。从注塑残余应力角度分析了翘曲变形的产生机理与演化过程。然后,以数值仿真和工艺实验为手段,建立了平板微小器件翘曲的测量方法。设计加工了基于硅型芯的注塑模具,以翘曲测量方法为基础,利用正交试验获得了最优注塑工艺参数。最后,通过极差分析法定量分析工艺参数对翘曲的影响。实验显示,通过工艺优化获得的最小翘曲量为141μm,工艺参数对翘曲的影响由大到小依次为：保压时间、模具温度、保压压力、熔体温度、冷却时间。该研究成果为平板微小器件注塑工艺提供了参考依据。
英文摘要：
This paper explored the warpage which has significant influence on the quality of inject molding for flat micro-mini parts.To control the warpage to an acceptable level,the warpage of a microfluidics plate with a cross-shaped microchannel was researched and the effect of processing parameters on the warpage was considered in detail.First,the generation mechanism and evolution course of the warpage from injection molding was analyzed based on residual stress.Then,the warpage measurement method was established according to simulation technologies and experimental methods.A Si-core based injection mold was designed and fabricated and the optimum processing parameters were obtained with orthogonal experimental method to achieve the minimum warpage.Finally,the quantitative correlations between the warpage and the processing parameters were investigated by extreme difference analysis.Experimental results indicate that the minimum warpage is 141 μm after optimum processing and the sequence of from strong correlation to weak correlation is：holding time,mold temperature,holding pressure,melting temperature and cooling time.The result is helpful to optimize the injection processing of polymer flat micro-mini parts.
同期刊论文项目
同项目期刊论文
Effects of electrophoresis and electroosmotic flow on ion enrichment in micro-nanofluidic preconcent
Monolithic integration of three-material microelectrodes for electrochemical detection on PMMA subst
Fabrication of SU-8 moulds on glass substrates by using a common thin negative photoresist as an adh
A three-layer PMMA electrophoresis microchip with Pt microelectrodes insulated by a thin film for co
Integrated Pt2Ni alloy@Pt core-shell nanoarchitectures with high electrocatalytic activity for oxyge
Carboxyl functionalized gold nanoparticles in situ grown on reduced graphene oxide for micro-gravime
Package-friendly piezoresistive pressure sensors with on-chip integrated packaging-stress-suppressed
Three Dimensional PtRh Alloy Porous Nanostructures: Tuning the Atomic Composition and Controlling th
Fully front-side bulk-micromachined single-chip micro flow sensors for bare-chip SMT (surface mounti
Fabrication of two dimensional polyethylene terephthalate nanofluidic chip using hot embossing and t
A novel hybrid patterning technique for micro and nanochannel fabrication by integrating hot embossi
Adsorption induced surface-stress sensing signal originating from both vertical interface effects an
Recent advances in preparation and application of hybrid organic-silica monolithic capillary columns
Monolithic Integration of Pressure Plus Acceleration Composite TPMS Sensors With a Single-Sided Micr
Nanopore density effect of polyacrylamide gel plug on electrokinetic ion enrichment in a micro-nanof
Analysis of Polymer Viscoelastic Properties Based on Compressive Creep Tests During Hot Embossing fo
Repulsively driven frequency-increased-generators for durable energy harvesting from ultra-low frequ
Precise extension-mode resonant sensor with uniform and repeatable sensitivity for detection of ppm-
Porous-layered stack of functionalized AuNP-rGO (gold nanoparticles-reduced graphene oxide) nanoshee
Bi-stable frequency up-conversion piezoelectric energy harvester driven by non-contact magnetic repu
Single-Side Fabricated Pressure Sensors for IC-Foundry-Compatible, High-Yield, and Low-Cost Volume P
A chelating-bond breaking and re-linking technique for rapid re-immobilization of immune micro-senso
期刊信息
位置：