Summary: Because of the amount of handling that occurs during material production, within warehouses, and during manufacturing operations, along with the handling of loading, unloading, and shipping, material mix-ups and mixed materials are not an uncommon occurence. Mixed materials also occur when industrial scrap is collected, or when discarded products are used a new raw material through recycling. A case of mixed materials has been identified, and you have been called upon to devise a means of separation. Assume that you have the equipment to perform each of the tests described in our discussion. For each of the material combinations below, determine a procedure that could accomplish such a separation. Use standard data-source references to help you identify distinguished properties. hot-rolled bars of AISI 1020 and 1040 steel stainless steel sheets of Type 430 ferritic stainless and Type 316 austenitic stainless. 6061-T6 aluminum and AZ91 magnesium that have become mixed in a batch of machine shop scrap.
Summary:
Because of the amount of handling that occurs during material production, within warehouses, and during manufacturing operations, along with the handling of loading, unloading, and shipping, material mix-ups and mixed materials are not an uncommon occurence. Mixed materials also occur when industrial scrap is collected, or when discarded products are used a new raw material through recycling.
A case of mixed materials has been identified, and you have been called upon to devise a means of separation. Assume that you have the equipment to perform each of the tests described in our discussion. For each of the material combinations below, determine a procedure that could accomplish such a separation. Use standard data-source references to help you identify distinguished properties.
- hot-rolled bars of AISI 1020 and 1040 steel
- stainless steel sheets of Type 430 ferritic stainless and Type 316 austenitic stainless.
- 6061-T6 aluminum and AZ91 magnesium that have become mixed in a batch of machine shop scrap.
- transparent bottles of polyethylene and polypropylene (both thermoplastic polymers) that have been collected for recycling.
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