New PSYCHC-4PLAY цилиндр, nominal 95мм.
Suitable for:
Yamaha
YZF 450 03-05
YFZ 450 04-09R ATV
WR 450F 03-06
Also available cylinders for other models and brands as well as цилиндр sets + complete piston + seals !!!
Description:
20001n
the well-known Taiwanese company Psychic - 4PLAY is a company known on the American market
the very high quality of workmanship and the materials used ensure that the cylinders not differ in quality from the original cylinders. The working part is covered with a very hard thread
номинальный диаметр цилиндра 95 мм (98 мм - 478ccm Big-bore cylinders also available)
a few words about the NICASIL coating:
середина 70-х годов the last century brought a new technology of cylinder surface coating used in automotive technology. NiCaSil-a coating made of nickel containing dispersed SIC silicon carbide grains. Как и рабочая часть внутренних двигателей, она эффективно заменяла сложные цилиндрические структуры (sleeve + body), использовавшиеся в это время. Причина этого, напротив, в том, чтобы превозносить представление о наиболее высокой утилитарной ценности "никасилья", была и по-прежнему экономическая. В high-volume production of cylinders, the use of these coatings somehow "knocks out" the traditional cylinder liner, for which a dozen or so complex technological processes are necessary. The time-consuming ratio of making a standard cylinder liner in relation to the Nicasil coating is 1:12, which is very simplifying - during the production of one cylinder with a liner, 12 coated cylinders can be produced. At this point, it should be mentioned that the composition of the coatings has not undergone significant improvements since their implementation / one can only notice the development in the techniques of their deposition [electroplating, ion implantation, thermal spraying, chemical coating] / or modifications that were made at the turn of the 1990s. in the technology of composite materials. Спрос на материалы с новыми или улучшенными свойствами привел к исследованиям и развитию технологий для их производства. Properties, composition, structure, the result of which is RELIABILITY !!! они успешно разрешили им использовать все виды приложений в автомобильных технологиях в производстве высокопроизводительных единиц, а также в восстановлении, m.in. внутренние цилиндры двигателя combustion. The use of an insert (sleeve) in place of the used NiCaSil coating - made of a suitable материал, guarantees 100% надежность of such repair, which, unfortunately, cannot be guaranteed by re-covering the worn cylinder with a new "nicasil" coating, especially a chrome coating / often offered as a nicasil coating !!! . The embedding of "NiCaSil" undoubtedly gives a 100% guarantee of quality, only if it is covered with a material that is homogenous in terms of structure (Al alloy). Это приложение только для новых цилиндров, то есть на производственном этапе, в котором нет термо-химических процессов, связанных с операцией двигателя. Как результат работы, цилиндр использовал и свои свойства, подпадая под ряд изменений, часто лишая его возможности быть перекрытым слоем "никасиля". Its structure, especially in the vicinity of the exhaust duct (exhaust outlet).e. in a place where aluminum alloy, as a result of high temperatures, changes its properties диаметрально сопротивлялись in relation to its other areas, loses the ability to "absorb-adhere себя" the Ниси coating. Этот феномен ирреативен! Covering this area with a coating usually only gives a visual effect. Таким образом, цилиндр, после нескольких часов работы, теряет свою функциональность, часто причиняет ущерб другим компонентам двигателя.
At this point, the user asks :I have a worn - what should I do in such a situation?
Well, there are two answers:
- purchase a new цилиндр
- order the application of a new NiCaSil coating, but after dissolving / removing the inhomogeneous Base layer of the Al alloy. which has changed / increased the диаметр цилиндра и thus the engine displacement, use a piston from a series of oversized" Big bore " + 1mm +1.5 etc. only for this purpose oversize is produced without additional selection groups-This is only the proced of re-coating in a used cylinder that gives any hope !!! / is it profitable? /
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