motas malas
| 09:12 Mar 25, 2021 |
| Spanish to English translations [PRO] Tech/Engineering - Metallurgy / Casting | |||||||
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| Summary of answers provided | ||||
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| 3 +1 | defective moulds |
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| 1 | minor defects |
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| Discussion entries: 4 | |
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Answers
3 hrs confidence: 
minor defects Explanation: Defects or imperfections... "Imperfections include vibrations and rotations due to thermal energy, point defects (vacancies, interstitials, substitutional solutes), linear defects (edge and screw dislocations), boundary or surface defects (grain boundaries and phase boundaries, including surfaces), and three-dimensional defects (amorphous or liquid state). " FWIW, "mota" reminds me of "mote" (a speck) as in the biblical parable of the mote and the beam... https://www.asminternational.org/web/smst/search/-/journal_content/56/10192/MSEN1991P059/PUBLICATION#:~:text=Imperfections%20include%20vibra https://en.wikipedia.org/wiki/The_Mote_and_the_Beam |
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8 hrs confidence: peer agreement (net): +1
peer agreement (net): +1defective moulds Explanation: ...or defective molds depending on which audience this is for. I believe 'motas' are sand molds which are separated from its mould pattern before casting. See https://en.wikipedia.org/wiki/DISAMATIC https://core.ac.uk/download/pdf/211103211.pdf (pages 18 to 20). Stage 3 and figure 16 shows "Retirada de la contraplaca: La contraplaca se retira del molde y gira hasta su posición horizontal. La cámara de moldeo queda abierta y la mota a la vista" It looks like the passage in the question is describing a 'faulty moulds extractor'. There's a drawing of one shown in the middle picture here https://vibrotech-eng.com/tambor-de-desmoldeo/ It is situated in the production line after the cooling stage and before the demoulding stage. It allows the defective moulds (motas) (eg the ones that have been incompletely filled) to be removed from the process before the metal parts are separated from the sand moulds so that these will not be mixed up with those that have cast properly. The sand from the rejected moulds is recycled and reused in the process, and the poorly cast metal parts are meted down and recycled. A description of what it does and photos are found in this article "The mold extraction process right after the cooling line AMC and SBC is an essential process to separate properly defective pieces from the line before to the next processes in order not to mix defective parts with good parts in the later demolding processes (cooling drum or continuous shake out conveyors )...The system consists of a vibrating conveyor installed in a frame on which it moves by wheels on rails. Normally a pneumatic cylinder is used as an actuator for the displacement. The mold extractor is installed in line or at 90º of the reception of molds from the SBC, according to the lay out of the line, depending on the position of the vibrating machine that receives the molds in the normal working process." https://vibrotech-eng.com/en/extractor-moldes-defectuosos-la... (The French for this DISAMATIC process is 'Moulage en mottes'. 'Motte' in French is the same as Spanish 'mota' and English 'motte' when you are referring to a mound of earth, so I guess this is where the term 'mota' derives from.) |
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