SU700304A1 - Method of induction building-up - Google Patents

Method of induction building-up

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Publication number
SU700304A1
SU700304A1 SU772522467A SU2522467A SU700304A1 SU 700304 A1 SU700304 A1 SU 700304A1 SU 772522467 A SU772522467 A SU 772522467A SU 2522467 A SU2522467 A SU 2522467A SU 700304 A1 SU700304 A1 SU 700304A1
Authority
SU
USSR - Soviet Union
Prior art keywords
induction
parts
flux
building
induction building
Prior art date
Application number
SU772522467A
Other languages
Russian (ru)
Inventor
Борис Исаакович Богопольский
Original Assignee
Конструкторско-Технологический Институт Автоматизации И Механизации Автомобилестроения
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 by Конструкторско-Технологический Институт Автоматизации И Механизации Автомобилестроения filed Critical Конструкторско-Технологический Институт Автоматизации И Механизации Автомобилестроения
Priority to SU772522467A priority Critical patent/SU700304A1/en
Application granted granted Critical
Publication of SU700304A1 publication Critical patent/SU700304A1/en

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Description

1one

Изобретение относитс  к области индукционной наплавай торцовых поверхностей стальных деталей, например торца толкател  -клалана аютомобильного двигател , чугуном и может быть использовааю дл  упрочнени  деталей .при изготоелении или при :воастаио1влении изношенных поверхностей .The invention relates to the field of induction surfacing of the end surfaces of steel parts, for example, the end of a pusher valve of a mobile motor, cast iron, and can be used to strengthen parts when manufactured or when: worn surfaces are worn.

Известен способ индукционной наплавки деталей, при котором на упрочн емую поверхность нанос т присадочный материал в виде порош коОбразной шпхты, пасты, брикетированкого или литого сплава, а затем расплавл ют его с полющью награва в поле ТВЧ 1.A known method of induction surfacing of parts in which a filler material is applied to a hardened surface in the form of powder, dough, briquetted or cast alloy, and then melted with heat treatment in an HDTV field 1.

Однако при «агреве торцовых по верхностей в поле ТВЧ наблюдаетс  значительный перепад температур -между периферийной частью и центром (до 250-350°С), вследствии чего происходит неравномерное плавление присадочпого металла, что ведет к образованию непроварО1В, пористости, прожега-м, натекам и др.However, during the heating of the end surfaces in the HDTV field, a significant temperature difference occurs between the peripheral part and the center (up to 250-350 ° C), as a result of which uneven melting of the additive metal occurs, which leads to the formation of cold lead, porosity, burn-in and etc.

Наиболее близким по технической сущности К предлагаемому способу  вл етс  шшроко примен е.мый в насто щее врем  при изготовлении би металл:ических толкателей .клапанов автомобильных двигателей способ индукционной наплавки с помощьюThe closest to the technical essence of the proposed method is widely used at the present time in the manufacture of bi-metal: ical pushers of car engine valves, induction welding using

заливки, при котором на наплавл емую поверхность тол-кател  нанос т дозу флюса (плавленой буры), нагревают деталь в поле ТВЧ до полного расплавлени  флюса, 5 заливают присадочный металл в виде низколегированного чугуна, а затем охлаждают с целью получени  закаленной износостойкой структуры 2.Fillings, in which a dose of flux (fused borax) is applied to the weld surface of the thinner, heat the component in the HDTV field until the flux is completely melted, 5 pour the filler metal in the form of low alloyed iron, and then cool it to obtain a hardened wear-resistant structure 2.

Однако 3 услови х массового поточного производства снил аетс  эффективность применени  этого способа, так ка-к использование жестких режимов нагрева увеличивает разность температур па участках торцовой поверхности детали, что ведет к снижению запт,итных свойств расплавленного флюса: снижаетс  его в зкость, увеличиваетс  испарение и улетучивание, происходит уплотнение защитной плен-кн флюса и разрывы в отдельных местах. При этом в наплавленном слое образуютс  дефекты в виде пор, раковпн, рыхлот н др. Попадание деталей с таким и дефектами в двигатель вызывает ускоренный износ наплавленной поверхности толкател .However, the 3 conditions of mass flow production reduces the efficiency of this method, as the use of hard heating regimes increases the temperature difference in parts of the face surface of the part, which leads to a decrease in the welding properties of the melted flux: its viscosity decreases, evaporation increases and volatilization, sealing of the protective film-flu flux-cn and ruptures in certain places occurs. In this case, defects in the form of pores, shell, loosening and other are formed in the deposited layer. Contact of parts with such defects in the engine causes accelerated wear of the deposited surface of the pusher.

Целью изобретени   вл етс  улучщение качества наплавленного сло  и повыщение его износостойкости при индукционной наплав-ке деталей заливкой.The aim of the invention is to improve the quality of the deposited layer and increase its wear resistance during induction welding of parts by casting.

SU772522467A 1977-09-07 1977-09-07 Method of induction building-up SU700304A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU772522467A SU700304A1 (en) 1977-09-07 1977-09-07 Method of induction building-up

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU772522467A SU700304A1 (en) 1977-09-07 1977-09-07 Method of induction building-up

Publications (1)

Publication Number Publication Date
SU700304A1 true SU700304A1 (en) 1979-11-30

Family

ID=20724152

Family Applications (1)

Application Number Title Priority Date Filing Date
SU772522467A SU700304A1 (en) 1977-09-07 1977-09-07 Method of induction building-up

Country Status (1)

Country Link
SU (1) SU700304A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA026909B1 (en) * 2015-02-26 2017-05-31 Артур Игоревич Покровский Method for hardening the working surface of a cast-iron valve lifter

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EA026909B1 (en) * 2015-02-26 2017-05-31 Артур Игоревич Покровский Method for hardening the working surface of a cast-iron valve lifter

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