Mar 25, 2021 09:12
3 yrs ago
25 viewers *
Spanish term
Native in: English
Works in: Spanish to English, Portuguese to English, Catalan to English
motas malas
Spanish to English
Tech/Engineering
Metallurgy / Casting
Hi All,
I would appreciate help translating the above term in the following context, as I am unable to come up with a solution myself:
Al final del enfriamiento se debe tener en cuenta una instalación de extracción de motas malas, compuesta por una vibrante a 90º para recoger el molde antes de la caída a la primera vibrante del desmoldeo para extraer moldes defectuosos de la línea y desarenarlos, devolviendo la arena nuevamente al sistema.
Best regards,
Darren
I would appreciate help translating the above term in the following context, as I am unable to come up with a solution myself:
Al final del enfriamiento se debe tener en cuenta una instalación de extracción de motas malas, compuesta por una vibrante a 90º para recoger el molde antes de la caída a la primera vibrante del desmoldeo para extraer moldes defectuosos de la línea y desarenarlos, devolviendo la arena nuevamente al sistema.
Best regards,
Darren
Proposed translations
(English)
| 3 +1 | defective moulds |
Althea Draper
|
| 1 | minor defects |
neilmac
|
Proposed translations
3 hrs
minor defects
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...
"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...
Reference:
+1
8 hrs
Althea Draper
United Kingdom
United Kingdom
Native in English
United Kingdom
Freelance Medical Translator, MA (Hons)
Native in: English (Variants: Scottish, British) 
Works in: French to English, Spanish to English, English
Related KudoZ points
:
8
defective moulds
...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.)
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.)
Peer comment(s):
| agree |
neilmac
: Yes, but it's the imperfections/defects rather than the whole mould per se.
2 hrs
|
|
Thanks Neilmac. The 'mota' is a flaskless, sand mould, and 'motas malas' are moulds that have had a problem that has been picked up in the manufacturing process eg incompletely filled with metal - see the discussion above.
|
Discussion
This is a picture of the part of the process. The blackish cuboids arriving from the right hand side are the 'motas'. The blue frame over the conveyor suspends the red and blue faulty mould extractor which shoves the faulty moulds (with the cast pieces inside) off onto a conveyor and into a skip. The remaining, good moulds continue on into the drum which separates the cast pieces out of the sand mould. After this they go for de-gating and shot blasting.
https://docplayer.es/84529365-Maquinaria-vibrante-instalacio... slide no. 5
https://en.wikipedia.org/wiki/DISAMATIC
https://core.ac.uk/download/pdf/211103211.pdf (pages 18 to 20).
(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.)
From this, I would guess that 'en mota horizontal' moulding was a subtype of flaskless moulding. https://directoriosubcontex.camara.es/en/company/urrkasting-...
This shows an 'en mota' in practice in Spanish https://tech-nofer.com/processos/
This is a collection of patents that describes the 'motas' but don't show them!
https://patentados.com/cip-2015/varias-cajas-moldeo-forman-p...
From this, it would look like 'motas' has to do with the sand formed in the box moulds for this type of process, but that is only a guess at the moment.