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parafusos afastadores

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21:48 Oct 18, 2007
This question was closed without grading. Reason: Answer found elsewhere

Portuguese to English translations [PRO]
Tech/Engineering - Petroleum Eng/Sci / Restriction Orifice
Portuguese term or phrase: parafusos afastadores
What type of screws are these?

"Os Flanges devem ser soldados na tubulação de forma que os parafusos afastadores estejam, sempre, diametralmente opostos."

"The Flanges must be welded into the pipe in such a manner that the >> parafusos afastadores
R-i-c-h-a-r-d
Brazil
Local time: 15:07
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Summary of answers provided
4jackscrews
José Henrique Lamensdorf
3spacing bolts (OR distance bolts)rhandler


Discussion entries: 2





  

Answers


6 days   confidence: Answerer confidence 4/5Answerer confidence 4/5
jackscrews


Explanation:
Esse flange será soldado a um tubo, e provavelmente será preso a um outro flange quando se for montar a tubulação inteira.

Os jackscrews são parafusos que servem para afastar os dois flanges numa desmontagem. Imagino que, dependendo da disposição dos componentes, eles possam ficar um em cada flange. Se eles não ficarem diametralmente opostos, na hora de desmontar poderão entortar um flange em relação ao outro, encavalando o conjunto e tornando a desmontagem impossível.

Explicando melhor: o jackscrew (que eu chamo de parafuso extrator) tem um furo rosqueado numa peça, e encontra uma face cega na outra que se quer afastar. Quando se parafusa, ele afasta uma da outra.

José Henrique Lamensdorf
Brazil
Local time: 15:07
Native speaker of: Native in EnglishEnglish, Native in PortuguesePortuguese
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1 hr   confidence: Answerer confidence 3/5Answerer confidence 3/5
spacing bolts (OR distance bolts)


Explanation:
Encontrei muitos exemplos em inglês para estas expressões, veja:

Torsional vibration damper with a friction device - US Patent 6026710
2 and 3 show that the circumferential area of the primary flange 2 has radial .... The spacing bolts 32 hold the cover plates 20 and 31 at a fixed distance ...
www.patentstorm.us/patents/6026710-description.html

A Two-Dimensional Microwave Luneherg Lens
control of plate spacing bolts were added a few at a time ..... the flanges, the gain and beam shape remain reasonably. constant, and most of the side lobes ...
http://ieeexplore.ieee.org/iel6/8236/25496/01140056.pdf

Apparatus for dispensing printed products
The free end of the horizontal flange of the angle piece 65 is split ... is, firmly attached to the upper side of the housing by spacing bolts 75, 78. ...
www.emergenthomestore.com/techcat/electrical_switch_assembl...


Exemplos para "distance bolts":

Device for fastening an armour to the crushing cone of a crusher ...
The pressure bush is located under the flange with a clearance there between and said clearance being fixed with distance bolts threaded into the threaded ...
www.freepatentsonline.com/4245792.html

[PDF] Data sheet GLR EN02
File Format: PDF/Adobe Acrobat
Place the flow conditioner in the flange; the flow conditioner will centre itself. ... Distance bolts made of galvanized steel. Set screws made of steel ...
www.elster-instromet.com/downloads/ELS_GM_GLR_DS_UK_02.pdf

New Page 2
Distance bolts side bracket, 2 pcs. 1522230. Connector side bracket, 1 pcs. ... Motor flange Solo. 1522285. Pignon 17 teeth for belt - clutch bell. 1522290 ...
www.alphamodelsports.co.uk/harmparts.htm


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Note added at 17 days (2007-11-05 13:07:22 GMT)
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Seriam, então, "parafusos extratores", como aqui:

PDF] PATENTES
File Format: PDF/Adobe Acrobat
agulha que sofrerá uma pressão contra dois parafusos extratores 7 que fazem a extração do tubo de aço através de um oblongo existente na chapa extratora8 ...
http://revista.inpi.gov.br/INPI_UPLOAD/Revistas/PATENTES1917...


rhandler
Local time: 15:07
Native speaker of: Portuguese
PRO pts in category: 60
Notes to answerer
Asker: Obrigado por não ter me dado uma resposta qualquer :)

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Changes made by editors
Oct 18, 2007 - Changes made by R-i-c-h-a-r-d:
Field (specific)Mechanics / Mech Engineering » Petroleum Eng/Sci


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