Выбор и применение японских натуральных камней

mikyl

8-8-2015 12:33 mikyl

Создал тему, где такие как я новички могут задавать соответствующие вопросы, а бывалые поделиться опытом.
Мой первый вопрос - как получить суспензию на камнях, не склонных делиться её добровольно.
Неделю назад пришёл ко мне камушек - Маруояма Широ-Суита. Пока точил по спускам (аогами в мягких обкладках) всё прекрасно - сразу появилась выработка метала. Но как только перешёл на аогами (микроподвод)- гладкая чистая поверхность. Получить суспензию без вспомогательных средств у меня не получилось.
Советы которые я получил:

1.Слурик - думаю наилучшее решение (от того же камня). Но, как у многих начинающих, у меня его нет.
2.Нагуры/алмазные платы - неоднозначно, мнения разделились. Ну и в добавок то, что я нарыл:

Alex Gilmore -

"One problem that may be found when using an alternate nagura stone in conjunction with suita strata stones that you need to
be aware of is that suita stones usually have beehive pattern of microscopic holes, the remaining voids of ancient carbolic
gases. This void rich matrix formation of the natural suita stones can trap loose grit particles. These voids in Japanese are
referred to as Su.. HERE IS A PHOTO OF THESE SU HOLES. These su holes or voids can aid in the sharpening process by
providing water retention, swarf flushing, and in the retention of embedded and desirable active cutting base/host stone
material which can be useful if the small bits originate from the host stone and not an alternate stone. If of the base stone,
then during the sharpening process these particles can be draw back up into the slurry for a second round of work where they
can be ground into an even finer grit particle dimension and size. Alternately, if the bits are of foreign or secondary stone,
and become lodged in the "su" holes, these particles can and will scratch the steel of the blade. So be aware if you use a
Aichi nagura or a coarse tomo nagura stone to create a slurry on a suita stone."
thejapanstone.com

"Using a slurry generating stone or device like a diamond plate with suita stones should always be done with care. For all of
the tomae strata stones and most suita stones a diamond plate called a Diamond Nagura (DN) can be a very useful tool to
say the least. The DN creates a compatible slurry composed of 100% base/host stone, no foreign grit material is interjected
to contaminate the stone. In this way all of the cutting material in the slurry is compatible with the host stone because it is
made up of the host stone."
thejapanstone.com

So c Japan Tool -

"Atoma Diamond Sharpener
Secret MUST item for using hard natural stones. Nagura stones cannot be used for harder natural stones, nor on various Suita stones.

The polishing parcticles of Nagura is larger than the particles of super fine finishing stones, and when the stone is hard, the Nagura's particle will scratch the bevel before they are ground to smaller size. Using diamond stone to create the initial slurry, you are getting the slurry that is made of the finishing stone itself. You'd be surprised how much better result you get by this technique.

Also, when you use a Nagura on Suita stones, the coarse Nagura particles will get stuck in the Su (the holes in Suita stones) and will keep scratching the bevel, because these particles won't get ground to smaller sizes."
japan-tool.com

"I stro~ngly recommend Atoma #1200 for lapping and slurry starting instead of Naguras apart from few exceptions, no matter how high quality it may be.

Iwasaki-san and Mizuochi-san themselves no longer use Naguras to start the slurry, but use Atoma #1200 instead. You have to remember "Hamono no Mikata" was published more than 50 years ago, many of the recommended technique are outdated. As matter of a fact Mizuochi-san doesn't even use his Nakayama to finish anymore, but Shapton GS #30000 and strongly recommending them even. But as you all hardcore razor fans know, when it comes to the razor finishing, natural stones are still surperior to the finest synthetic stones, making the edge not only super sharp (this, the Shapton does as well) but smooth/mild as well due to the rounder cutting particle shape.

So my current conclusion is no Naguras, but natural finisher + Atoma #1200."
japan-tool.com

Ну и с этого раздела -

"Since most of us don't have a smaller yet identical piece of our Japanese whetstones, then a diamond plate is recommended. The diamond plate works because it's harder than the whetstone. It will build a slurry made up entirely of particles from your finishing stone. Instead of the slurry of an 8K nagura, you're getting the slurry of a 20K+ whetstone. Those particles break down and get smaller and finer, which will refine your razor's edge far beyond the purported grit of the stone."
Нагура для водников ( англ. nagura, яп. 名倉 ) #18

Хотелось бы услышать мнения опытных людей.

almedic


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