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| + | [title] Materials - Air Tank |
|---|---|
| + | [* black] The air tank that forms part of the sharks ballast system differs from the other components in material and manufacture method. |
| + | [* black] This component is manufactured with blow molding. This technique is cheaper than injection molding and allows the creation of water or air tight solid parts, making it ideal for this application (Alwepo, n.d.). |
| + | [* black] The air bladder shows a clear mold release line and uneven surface finish, both common traits of blow molding (Alwepo, n.d.). Additionally, the injection point for the part has been melted and sealed off. |
| + | [* black] From a material perspective, this part is likely made from polyethylene, as this is listed by the manufacturer as a material used in the sharks construction, and is commonly used in blow molding applications (Alwepo, n.d.). |
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