block

19:58 Sep 15, 2009
This question was closed without grading. Reason: Answer found elsewhere

English to Portuguese translations [PRO]
Tech/Engineering - Metallurgy / Casting / trefilaria
English term or phrase: block
Vejam a várias frases para ter certeza do sentido de block antes de sugerirem traduções, por favor.

Their production of cable for suspension bridges was constantly being interrupted when the worn grooves in the flame-hardened cast iron drawing blocks became too deep to allow proper machine operation. Each time the blocks were removed and cut down to eliminate the grooves, they wore out even sooner than they had previously (the effects of flame-hardening gradually decrease beneath the surface).

Though small and nearly imperceptible to the touch once the block is ground, these cracks can cause marking problems for some softer or plating quality wires. Also, the extreme pressures involved in drawing very large diameter wires can sometimes weaken the cracks enough to cause chunks of weld to chip out.To this day, however, the cracked sub-arc weld coating offers the longest working life for all blocks drawing carbon steel wires (up to 5/8" dia.) in dry lubricant. For blocks that have been cut down too thin, the weld will have to be applied to a steel sleeve that is then shrink-fitted and bolted to the block. The sleeving process more than doubles the cost of the block repair job.

They work well on blocks drawing smaller diameter wires (especially welding wire), and they are also useful for coating pulleys, sheaves, and rollers.

The latest development in block coatings involves the refinement of the HVOF process to allow the restoration of only the worn area of a prior coating.

First and foremost, the block should be ground while held between centers on
an arbor that mimics the shaft that the block will actually be running on. This ensures
that the block face will be ground concentric to the bore in order to prevent block wobble. If the bore is excessively worn or damaged, it should be machined true or sleeved. The radius between the flange and face should be made larger than the largest diameter wire that the block will draw. The most crucial dimension is the taper(s) on the face of the block. While the radius simply creates a ramp effect to get the first wire wrap started, the correct taper is needed to keep each successive wrap of wire
Lilian Magalhães
Brazil
Local time: 00:28


Summary of answers provided
4 +2bobine
euph
2eixo
Teresa Borges


Discussion entries: 6





  

Answers


8 hrs   confidence: Answerer confidence 4/5Answerer confidence 4/5 peer agreement (net): +2
bobine


Explanation:
check the site:

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Note added at 8 hrs (2009-09-16 04:49:43 GMT)
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Around the middle of the page, you'll find pictures and explanations about the machines. I hope it helps.


    Reference: http://www.wireworld.com/seminar/wiredrawing/
euph
Native speaker of: Native in PortuguesePortuguese
Notes to answerer
Asker: nao econtro esse termo no dicionário metalúrgico...há bobina (= coil), mas nao bobine. Block é um substantivo, OK?

Asker: Em Português do Brasil?

Asker: Is there anyway I can send you the picture of block for you to see?

Asker: Blocks are referred to by several names, including blocks or capstans (most common), drums, heads or bull wheels. No matter how they are referred, most, if not all of the following information will apply. Some of the more common block elements include bore, face, flange, gripper slot, keyway, radius, taper, step and stripper slots.


Peer comments on this answer (and responses from the answerer)
agree  Isabel Maria Almeida
2 hrs

agree  Stephen Kramer: Bobina, isto pode ser tanto a peça que puxa e enrola o fio, quanto o rolo de fio que se faz nela. Ver referencia na sua outra pergunta http://www.proz.com/kudoz/english_to_portuguese/metallurgy_c...
16 hrs
Login to enter a peer comment (or grade)

15 hrs   confidence: Answerer confidence 2/5Answerer confidence 2/5
eixo


Explanation:
Com todas as reservas...

Teresa Borges
Portugal
Local time: 02:28
Native speaker of: Native in PortuguesePortuguese
PRO pts in category: 12
Notes to answerer
Asker: Blocks are referred to by several names, including blocks or capstans (most common), drums, heads or bull wheels. No matter how they are referred, most, if not all of the following information will apply. Some of the more common block elements include bore, face, flange, gripper slot, keyway, radius, taper, step and stripper slots.

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