jar玻璃罐的英文报告.docVIP

Worksheet SEMW313-Manufacturing Technology Project Based Assessment Jar Team Members: Jeason Jet Bruce-wei Larry Company Name:JＪＢL Location of manufacturing plant:QingShan town of Wuhan Number of manufacturing operators: 200 Number of supervisors and managers:Four Group Assessment Report Material Selection Task a.Description of use/function and cost to buy Used for carrying water or other food seasoning and it cost about 9￥ b.Required Properties(Constraints and Objectives) Nontoxic,Corrosion resistant,High temperature resistant and Transparent c.Choice of material and justification Glass:because it is no harmful to human’s health and it isn’t out of shape when it carries hot water,it is also convenient to see what it is inside. Process Selection Task a.Define primary shape of item 3D-Hollow Blow b.Review shaping processes that can be selection to make item.List and describe each one .Choose and justify process selection to make item. Conventional machining:Processing glass, so that the surface is smooth and with the contour Injection moulding:For adding a cup handle Blow moulding:Used to create the hollow part of the jar Compression moulding:Strengthen the bottom of the jar to prevent it from breaking c.Discuss and justify need for surface treatment(coating,surface roughness etc.) General speaking , there are four useful surface treatments which are polishing texturing plating metallingising anodize chromizing and painting printing. Surface treatment is a significant step for our product processing. Surface finishing or treatment is a broad range of industrial processes that alter the surface of a manufactured item to achieve a certain property. ?Finishing processes may be employed to: ?Improve appearance ?Adhesion or wettability ?Solder-ability ?Corrosion resistance ?Tarnish resistance ?Chemical resistance ?Wear resistance ?Hardness ?Modify electrical conductivity ?Remove burrs and other surface flaw