SU676380A2 - Method of producing iron casting in chill mould - Google Patents

Method of producing iron casting in chill mould

Info

Publication number
SU676380A2
SU676380A2 SU782585758A SU2585758A SU676380A2 SU 676380 A2 SU676380 A2 SU 676380A2 SU 782585758 A SU782585758 A SU 782585758A SU 2585758 A SU2585758 A SU 2585758A SU 676380 A2 SU676380 A2 SU 676380A2
Authority
SU
USSR - Soviet Union
Prior art keywords
casting
iron casting
producing iron
chill mould
chill
Prior art date
Application number
SU782585758A
Other languages
Russian (ru)
Inventor
Геннадий Анатольевич Анисович
Владимир Степанович Алексеев
Зоя Дмитриевна Павленко
Сергей Викторович Галагаев
Original Assignee
Могилевский Филиал Физико-Технического Института Ан Белорусской Сср
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 Могилевский Филиал Физико-Технического Института Ан Белорусской Сср filed Critical Могилевский Филиал Физико-Технического Института Ан Белорусской Сср
Priority to SU782585758A priority Critical patent/SU676380A2/en
Application granted granted Critical
Publication of SU676380A2 publication Critical patent/SU676380A2/en

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  • Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)

Description

Отливают такую же заготовку по предлагаемому способу, заливают чугун. Через 25 с образуют зазор, т. е. экранируют теплоту , излучаемую отливкой. В течение 25с экранировани  цементит в корочке отливки распадаетс  полностью.Cast the same billet on the proposed method, cast iron is poured. After 25 s they form a gap, i.e. they shield the heat radiated by the casting. Within 25 seconds of shielding, the cementite in the casting crust disintegrates completely.

Через 50 с после начала заливки экранирование прерывают (свод т секторы кокил  вплотную к отливке).Fifty seconds after the start of pouring, the screening is interrupted (the sectors of the mold are reduced close to the casting).

Скорость затвердевани  центральной части отливки увеличиваетс  (кокиль захолаживает через корочку жидкий металл) и через 20 с после свода кокил  отливка полностью затвердевает, после чего экранирование возобновл ют. Отливка без отбела (корочка отожглась в период экранировани ), остальна  часть отливки имеет мелкозернистую , плотную структуру с твердостью 240-250 НВ (вследствие ускоренного затвердевани  в период прерывани  экранировани ).The rate of solidification of the central part of the casting increases (the metal mold re-quenches the liquid metal through the crust) and after 20 seconds after the body of the mold the casting solidifies completely, after which the shielding is resumed. Casting without chill (the crust burned during the screening period), the rest of the casting has a fine-grained, dense structure with a hardness of 240-250 HB (due to accelerated solidification during the screening interruption period).

Предлагаемый способ позвол ет получить отливку с более мелкозернистой и плотной структурой и повысить ее твердость , т. е. улучшить ее качество.The proposed method allows to obtain a casting with a finer-grained and dense structure and increase its hardness, i.e., improve its quality.

Claims (1)

Формула изобретени Invention Formula Способ получени  чугунных отливок в кокиле по авт. св. № 495147, отличающийс  тем, что, с целью получени  качественных толстостенных отливок, после завершени  процесса самоотжига в корочке отливки части кокил  смыкают до полного затвердевани  отливки.The method of obtaining iron castings in a chill mold by author. St. No. 495147, characterized in that, in order to obtain high-quality thick-walled castings, after completion of the self-annealing process in the crust of the casting part of the chill mold is closed until the solidification of the casting is complete.
SU782585758A 1978-03-01 1978-03-01 Method of producing iron casting in chill mould SU676380A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU782585758A SU676380A2 (en) 1978-03-01 1978-03-01 Method of producing iron casting in chill mould

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU782585758A SU676380A2 (en) 1978-03-01 1978-03-01 Method of producing iron casting in chill mould

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
SU495147 Addition

Publications (1)

Publication Number Publication Date
SU676380A2 true SU676380A2 (en) 1979-07-30

Family

ID=20751556

Family Applications (1)

Application Number Title Priority Date Filing Date
SU782585758A SU676380A2 (en) 1978-03-01 1978-03-01 Method of producing iron casting in chill mould

Country Status (1)

Country Link
SU (1) SU676380A2 (en)

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