Test Method for Product Fragility A shock machine is used to generate a damage boundary curve A vibration system is used to map out the natural frequencies of a product

Throughout the distribution system, packages are manhandled and mishandled in various ways: dropped, thrown, kicked and otherwise roughly abused; fall from conveyors or forklifts and crash to the floor;

Defined as an impact, characterized by sudden and substantial change in velocity. Shocks in the distribution environment: Accidental and deliberate drops during manual handling Drops from chutes, conveyors, and other machinery Falls from pallet loads Sudden arrests on conveyors Impacts occurring when vehicles hit potholes, curbs, or railroad tracks

Introduction The objective of package printing and decorating is to create a visibly identifiable image, consistently, for a large number of impressions. these have been divided into two groups: .\Printing\ in the context of this discussion refers to flexography, lithography and gravure--the methods that

Introduction Demographic and Psychographics The Retail Environment Fundamental Messages Equity and Names Graphic Design Basics Iypography

Introduction Color Perception Color Terminology Viewing Color

Plasticating Extruder Gear reducer -Feed hopper Heater bands Feed throat

第八节 拉深模工作零件的设计 第九节 拉深工艺的辅助工序

拉深件的工艺性、拉深模的典型结构

本节在掌握圆筒形件拉深成形的基础之上,分析其它形状零件的拉深,从中掌握方法。 一、有凸缘圆筒形件的拉深变形特点:该类零件的拉深过程,其变形区的应力状态和变形特点与无凸缘圆筒形件是相同的。但坯料凸缘部分不是全部拉入凹模