Purpose of the development: Разработан способ отливки цилиндров двигателей внутреннего сгорания, Который способствует укреплению, достижению максимальной долговечности и минимальных износов гильз цилиндров и поршневых колец дизелей и двигателей внутреннего сгорания.

Recommended application field: Foundry parts for internal combustion engines in the engineering and shipbuilding industries.

Advantages over analogues: The developed method is characterized in that in order to prevent the occurrence of cracking in the casting as well as to improve heat dissipation from the surface is cooled, heat extraction by radiation, by introducing into the die cavity, which rotates the cone body, inside which the refrigerant is cooled with different intensity by length. Analysis of engine cylinder liners research showed increased their share compared with serial 35 ... 40%.

The development stage readiness: Ready for application

Description of the development:
()
Artificial acceleration of the inner surface of the casting cooling by blowing compressed air to avoid excessive growth of graphite inclusions and get the most optimal, moderately distributed flake graphite medium size. The second phase of accelerated cooling is performed by injecting coolant. It is this accelerated transition temperature range of the pearlite transformation provides a finely shaped structure sorbitol cast metal base. Dispersibility perlite without front below 0.3. The presence of ferrite is observed. Structural-free cement to the inner surface of the sleeve is missing. It is necessary to conduct a second step of intensive cooling for only a portion of the sleeve adjacent to the upper side, no more than 1/3 relative lengths. This differentiation provides a uniform wear cylinder engine height during operation. In the foundry KP "Kievtraktorodetal" on the vertical units equipped with forced cooling the inner surface of blanks were cast cylinder liners industrial lots of different types of engines - namely, tractor D-240, D-245, MD-14, MD-60, MD -18N and reinforced sleeves engine SMD-31A to combine "Don".

Information about newness of the development:
there are Ukrainian patents -- 1 items

corresponds technical description
Ready for implementation

Possibility of transfer abroad:
Licence's sale
Licence's sale
Technological document's sale
Combinated reduction to industrial level

Photo

Country Ukraine

For additional information turn to:
E-mail: gal@uintei.kiev.ua