SU77898A1 - Method for increasing wear resistance of cast-iron cylinders of internal combustion engines - Google Patents

Method for increasing wear resistance of cast-iron cylinders of internal combustion engines

Info

Publication number
SU77898A1
SU77898A1 SU388910A SU388910A SU77898A1 SU 77898 A1 SU77898 A1 SU 77898A1 SU 388910 A SU388910 A SU 388910A SU 388910 A SU388910 A SU 388910A SU 77898 A1 SU77898 A1 SU 77898A1
Authority
SU
USSR - Soviet Union
Prior art keywords
cast
internal combustion
wear resistance
combustion engines
cylinders
Prior art date
Application number
SU388910A
Other languages
Russian (ru)
Inventor
П.Г. Нижанский
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Priority to SU388910A priority Critical patent/SU77898A1/en
Application granted granted Critical
Publication of SU77898A1 publication Critical patent/SU77898A1/en

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/25—Process efficiency

Description

Дл  повышени  износоустойчивости чугунных цилиндров, например автомобильных двигателей, примен ютс  вставные гильзы из высоколегированного чугуна или обычного чугуна с термообработкой - закалкой и отпуском.In order to increase the durability of cast iron cylinders, such as automobile engines, insert sleeves of high alloy cast iron or conventional cast iron with heat treatment — quenching and tempering — are used.

Закалка блока цилиндров, не имеющих вставных гильз, приводит к значительной деформации изделий, что повышает процент брака.Hardening of a cylinder block that does not have plug-in sleeves leads to a significant deformation of the products, which increases the rejection rate.

Применение нагрева чугунных цилиндров при помощи тока высоко; частоты также в р де случаев приводит к повыщенной деформации изделий .The use of heating cast iron cylinders using high current; Frequencies also in a number of cases lead to increased deformation of the products.

В цел х удешевлени  изготовлени  чугунных цилиндров, а также уменьшени  короблени  изделий при термообработке предлагаетс  способ изготовлени  этих изделий из нелегированного чугуна с применением поверхностной за калки их рабочей поверхности током высокой частоты путем последовательной закалки на глубину не более 0,3 минимальной толщины стенки цилиндра.In order to reduce the cost of making cast iron cylinders, as well as reduce the warping of products during heat treatment, a method is proposed for the manufacture of these products from undoped cast iron using high frequency current surface treatment of their working surface by sequential quenching to a depth of no more than 0.3 of the minimum cylinder wall thickness.

Этот способ позвол ет изготовл ть чугунные цилиндры и блоки чугунных цилиндров без вставных гильз, сокращает деформацию до пределов , допускающих отделку цилиндров хонингованием, и обеспечивает повышение износоустойчивости рабочих поверхностей изделий.This method makes it possible to manufacture cast-iron cylinders and blocks of cast-iron cylinders without liners, reduces deformation to limits that can be finished with honing cylinders, and improves the durability of the working surfaces of the products.

Предмет изобретени Subject invention

Способ повышени  износоустойчивости чугунных цилиндров двигателей внутреннего сгорани , например автомобильных, применением поверхностной закалки их рабочей поверхности при нагреве током высокой частоты, отличающийс  тем, что термообработка стенок цилиндров производитс  последовательно закалкой при нагреве током высокой частоты, обеспечивающем глубину закаленного сло  не более 0,3 мини1мальной толщины стенки цилиндра, вследствие чего деформаци  цилиндров не выходит из пределов, допускающих отделку цилиндров хонингованием.A method of increasing the wear resistance of cast iron cylinders of internal combustion engines, for example automobile ones, by applying surface hardening of their working surface when heated with a high frequency current, characterized in that the heat treatment of cylinder walls is performed by sequential quenching when heated with a high frequency current that provides a minimum depth of 0.3 min. the wall thickness of the cylinder, as a result of which the deformation of the cylinders does not exceed the limits that allow the finishing of the cylinders by honing.

SU388910A 1948-12-20 1948-12-20 Method for increasing wear resistance of cast-iron cylinders of internal combustion engines SU77898A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU388910A SU77898A1 (en) 1948-12-20 1948-12-20 Method for increasing wear resistance of cast-iron cylinders of internal combustion engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU388910A SU77898A1 (en) 1948-12-20 1948-12-20 Method for increasing wear resistance of cast-iron cylinders of internal combustion engines

Publications (1)

Publication Number Publication Date
SU77898A1 true SU77898A1 (en) 1975-10-15

Family

ID=20436577

Family Applications (1)

Application Number Title Priority Date Filing Date
SU388910A SU77898A1 (en) 1948-12-20 1948-12-20 Method for increasing wear resistance of cast-iron cylinders of internal combustion engines

Country Status (1)

Country Link
SU (1) SU77898A1 (en)

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