Tool Bench (injection mold) ( 4)(Chinese Edition)

REN LI ZI YUAN HE SHE HUI BAO ZHANG BU JIAO CAI BAN GONG SHI DENG

ISBN 10: 7504588253 ISBN 13: 9787504588258

Editorial: China Labor and Social Security Publishing House P, 2011

Idioma: Ingl�s

Nuevos Condici�n: New Encuadernaci�n de tapa blanda

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Descripci�n

Paperback. Pages Number: 292 Language: Chinese. Publisher: China Labor and Social Security Publishing House Pub. Date :2011-02- 01. tool fitter (injection mold) (4) is 1 + X professional skill assessment guide. one of the theory of knowledge review questions skills review questions and simulation theory and operation of papers skills simulation papers to consist of three large. the book describes the exam based on the proposition. the amount of paper structure and the kinds of questions quest.

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T�tulo: Tool Bench (injection mold) ( 4)(Chinese Edition)
Editor: China Labor and Social Security Publishing House P
Fecha de publicaci�n: 2011
Idioma: Ingl�s
ISBN 10: 7504588253
ISBN 13: 9787504588258
Encuadernaci�n: paperback
Estado: New

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Sinopsis

《工具钳工（注塑模）（4级）》是《1+X职业技能鉴定考核指导手册》之一，由“理论知识复习题”“操作技能复习题”和“理论知识模拟试卷及操作技能模拟试卷”三大块内容组成，书中介绍了题库的命题依据、试卷结构和题型题量，同时从上海市1+X鉴定题库中抽取部分理论知识题、操作技能试题和模拟样卷供考生参考和练习，便于考生能够有针对性地进行考前复习准备。22．常用的定位元件有V形块、定位销、定位心轴。（）23．选择精基准一般应遵循基准不重合原则。（）24．根据夹紧元件和夹紧机构的设计原理不同，常用的工件夹紧方法有斜楔夹紧、偏心机构夹紧、螺旋压板机构夹紧等。（）25．注塑成形是将粒状或粉状塑料经过加热熔化使之呈流动状态后，快速注人温度较低的闭合模腔中，熔料在受压的状态下冷却、固化，开模分型获得成形塑件。（）26．塑料注射成形工艺的成形周期短，能一次成形外形复杂、尺寸精确、带有金属或非金属嵌件的塑件。（）27．设计注塑模前应首先明确塑件的设计要求和塑件的生产批量，分析塑件的成形工艺资料，了解工厂的现场生产条件。（）28．常用模具材料具有良好的力学性能、优异的热性能以及良好的加工性能。（）29．45钢常用于制作动模板、定模板、垫块和支撑板等。（）30．攻螺纹属于钳工的基本工作之一。（）31．工具钳工的主要任务是利用台虎钳及各种手工工具、电动工具、钻床以及模具专用设备来完成目前机械加工还不能替代的手工操作，并将加工好的模具零件按图样要求装配、调试，最后制造出合格的模具产品。（）32．划线是根据设计图样或技术要求，在毛坯或工件上用划线工具划出待加工部位的轮廓线或作为基准的点、线的操作过程。（）33．按划线在加工中的作用，划线可分为划加工线、证明线和找正线三种。（）34．划线基准可以以两条相互垂直的中心线为基准。（）35．锯削是一种粗加工。（）36．锯弓有可调式和固定式两种。（）37．锯条按齿距大小可以做成粗齿、中齿和细齿。（）38．锉削是用锉刀对工件进行切削加工的方法。（）39．锉刀按用途不同可分为钳工锉、异形锉和整形锉三类。（）……工具钳工（注塑模）职业简介第1部分工具钳工（注塑模）（四级）鉴定方案第2部分鉴定要素细目表第3部分理论知识复习题职业道德基础知识专业知识第4部分操作技能复习题模具工程识图与加工工艺文件编制注塑模具修配注塑模具装配注塑模具调试第5部分理论知识考试模拟试卷及答案第6部分操作技能考核模拟试卷

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