Tuesday 12 February 2008

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PE2007 Mould and Die Design

https://intranet.londonmet.ac.uk/prog-plan/module-catalogue/2/pe/pe2007.cfmPE2007 Mould and Die Design
Teaching Location
North
Teaching Semester
Spring
Module Level
I
Home Academic Department
LMPC
Module Leader
Peter Cracknell
Module Web Site
PE2007
Teaching Mode
day
Module Title
Mould and Die Design
Timeslot
City campusNorth campus
Credit Rating For Module
15
Module Summary
Module code: PE2007NModule title: Mould and Die DesignDescription: This module covers the principles essential to the design of moulds and dies with special emphasis on the processes used in manufacturing products from polymers.Semester: SpringPrerequisite: PE1004NAssessment: Coursework (60%) + Exam (40%)
Prerequisites And Corequisites
PE 1004N
Summary Description Of Assessment Items
(See Explanations and Definitions)
Assessment type
Description of item
% Weighting
Qual Mark
Qual Set
Tariff
Week due
CWK
Individual assignment
20
40%
1
-
7
PRA
Workshop practices reports
40
40%
1
-
11
EXU
2½ hours unseen examination
40
40%
-
-
15
Module Aims
• To develop in depth the principles of mould and die design with special emphasis on those used in the polymer industry. (A2, A3)• To enable students to design and evaluate moulds and dies of acceptable quality and performance for given specified polymer products. (A2, A3)The principal graduate attributes focused on in this module are A2 and A3.
Syllabus
• Tool Design criteria and analysisMould design types; 2-plate, multi-plate, undercut, runnerless and compression mould designs.• Die DesignRod, tube, sheet and profile die designs.• Special emphasisa) Flow behaviour and gating, calculations of feed system parameters.b) Ejection type and deployment.c) Cooling systems and deployment.d) Mould and die making materials, inc. criteria for selection.e) Standard mould and die parts (selection and design incorporation).f) Prototype tool designs and applications (RIM, rapid prototyping, etc).g) Flow behaviour in dies (pressure differential, land dimensions, output, etc.).h) Tool manufacturing and economic considerations.i) Case studies of good and bad design.• MoldFlow in Mould Design• Mould Design Workshop
Learning And Teaching
This module comprises 24 hours of lecture, 10 hours of MoldFlow computer simulation sessions, 4 hours of mould making workshop, 2 hours of tutorial and 4 hours of revision.• Lecture: The lecture will discuss the week’s topic by presenting the fundamental principles and main theoretical analysis accompanied by clarifying examples.• Tutorial: The tutorial will provide a forum where students will have the opportunity to work through exercise sheets and discuss issues related to the lectures and coursework elements of the module. The tutorial should be interpreted as a vehicle for discussion and debate.• MoldFlow computer simulation: Students will have access to the MoldFlow computer based simulation package to carry out a series of exercises. Upon completion, students should be able to model a part/runner system, optimise gate location, analyse and interpret fill, and recommend design changes.• Mould making workshop: Students will be guided through a comprehensive workshop practice as they work in-groups of two or three to design and make moulds. This activity will provide a valuable hands-on -experience of using mould-making tool design.• Student-centred learning: Students are expected to undertake directed independent study by reading through lecture notes, recommended chapters/sections from the module text and other recommended sources in order to complete coursework elements of the module.
Learning Outcomes
On successful completion of this module students should be able to:1. Construct an effective tooling specification fit for intended purposes. (A2)2. Design basic mould/die tooling in conformance to industrial practice. (A3)3. Discriminate between good and bad design practice. (A3)4. Effectively evaluate a given tool design with respect to cooling, feeding, ejection and integrity of construction. (A2, A3)5. Constructively criticise a given polymer product design regarding its mouldability in the context of the polymer used. (A3)6. Calculate manifold dimensions in sheet dies. (A2)
Assessment Strategy
This module is assessed by coursework and unseen examination. The assessment components are;• Individual assignment: This piece of coursework aims to develop and assess student understanding of the subject matter and his/her ability to produce solutions to specific mould design problems. Students are expected to write a critical appraisal on a mould, identifying its faults and recommend the necessary modifications required. This component contributes 20% to the overall mark of the module.• Workshop reports: Two reports each contributing 25% to the overall mark of the module must be submitted. The two reports are;(i) Moldflow simulation workshop report - The computational skills are developed and assessed through six sessions of using MoldFlow software package, each of approximately 2 hours duration. Students are required to submit an individual typewritten report discussing the computer simulation results and the conclusion that can be drawn from it.(ii) Mould making design workshop report: Student workshop skills are developed and assessed through 6 sessions of mould making activities each of approximately 1 hour duration. Students should submit a typewritten report which should include the drawings and the design analysis of various moulds.• Unseen examination: Students are required to sit end-of semester written examination of 2½ hours duration. Students will be instructed to answer four questions from six. Unseen examination contributes 40% to the overall mark of the module.
Bibliography
[1] P. Cracknell and R. W. Dyson, “Handbook of thermoplastic Injection Mould Design”., Blackies 1993.[2] RGW Pye, “Injection Mould Design for Plastics”, 4th Edition, Goodwin 1989.[3] H. Gastrow, “Injection Moulds”, 3rd Edition, Hanser 1983.[4] W. Michaeli, “Extrusion Dies for Plastic and Rubber”., Hanser 1992.[5] C. Rauwendaal, “Polymer Extrusion”., Hanser 1986.[6] D. Dunning and A. Whelan, “Extrusion Processors Handbook”., Dynisco 1988.[7] A. Whelan, “Injection Moulding Machines”., Elservier Applied Science 1984.[8] J. L. White., “Rubber Processing Technology”., Hanser 1995.[9] www.ticona.com download free design guide (00-332/3M/0402) (Designing with Plastics) 2000

chemical material

MATERIAL
KEY BENEFITS
TYPICAL APPLICATIONS
ABS
Can withstand high temperatures and has good adhesive properties. Mainly used for indoor purposes.
Pipes, hosing, fridge and freezer parts.
ACETAL
Outstanding resistance to hot water and organic chemicals. Excellent friction and abrasion qualities.
Boning for underwear and fancy dress.
ACRYLIC
Crystal clarity with exceptional resistance to environment, weather and chemicals.
Light diffusers, point of sale holders and display stands.
POLYSTYRENE (HIP)
Indoor use. Good adhesive properties.
Packaging and coving.
POLYETHYLENE
Can be supplied in high or low density depending on application. Suitable for indoor and outdoor uses. Tough with good resistance to chemicals and low temperatures.
Gas and water piping, protective covers and packaging.
POLYPROPYLENE
Tough material with good resistance to chemical environments. Can withstand high temperatures.
Tubing and hinge components.
PVC (flexible)
Variable flexibility for different applications.
Pelmets, sleeves, trims and hosing.
UPVC (rigid PVC)
Suitable for a wide range of indoor and outdoor uses.
Windows, glazing, trims and trunking.

the English words for the extrusion die

挤出 extrusion 挤出机螺杆 extrusion screw 挤出机模具 extruder dies 挤出机模具 extrusion dies 挤出机头 extruder head 挤出机头 extrusion head 挤出压、包、制 extrude 挤出压、包、制的 extruded 挤出压、包、制方法 extrusion process 挤出制、包、压 extruding 挤出制、包、压 extrusion 挤出发泡 extrusion foaming 挤出发泡法 extrusion foaming method 挤出工艺 extrusion processing 挤出机 extr. 挤出机 extruders 挤出机 extruding machine 挤出机螺杆的计量区 metering section of a screw 挤出机模嘴、模芯、末端 tip 挤出机送料螺杆 stockscrew 挤出机斜角机头 oblique head 挤出机、挤压机 extruder 挤出机机筒内径 extruder bore 挤出机机头口型 die lips 挤出机机头口型间隙 die lips gap 挤出机机头口型间隙 die lips gap 挤出机挤出量 extruder output 挤出机螺杆 extruder screw 挤出机模芯 extrusion tip 挤出机筒内焦烧、早期硫化 scorchingin extruder cylinder 挤出机筒体 extruder barrel 挤出技术、挤出工艺 extrusion technology 挤出量、挤出速度量 extrusion rate 挤出轮 extrusion wheel 挤出模具 extrusion die 挤出模具 extrusion tool 挤出生产线速度 extrusion line speed 挤出速度 extrusion velocity 挤出头、压力模座 press block 挤出涂漆法 extrusion enamelling process 挤出温度 extrusion temperature 挤出物、挤制材料 extrudate 挤出物料的脱节 starving of extrudate flow 挤出物温度 extrudate temperaturev 挤出型绝缘电缆 extruded cable 挤出型绝缘电缆 extruded dielectric cable 挤出性能 extrusion property 挤出压力 extrusion pressure 挤出指数 extrusion index 挤气式挤出机 vent extruder 挤压包铅护、压铅 lead-sheathing 挤压挤包铅护套、压铅 n 挤压挤包铅护套、压铅 to apply the lead sheath 挤制铝护套 extruded aluminium sheath 挤制漆包线 extruded enamel wire

Monday 11 February 2008

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Saturday 5 January 2008

where can I find the pvc profile making factories?

I want to find some factories who make pvc profile for the doors&windows,or the wood-plastic composite floorings.Where can I find them?

Sanmu extrusion toolings/extrusion dies/extrusion moulds/extrusion molds

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122 Yan'an Road ,Huangshi City,Hubei Province,China
P.C:435002 TEL:86-714-6528552
fax: 86-714-6533786
email: sanmu16018@yahoo.com.cn

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