SU716701A1 - Method of making hollow casting - Google Patents

Method of making hollow casting Download PDF

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Publication number
SU716701A1
SU716701A1 SU782656655A SU2656655A SU716701A1 SU 716701 A1 SU716701 A1 SU 716701A1 SU 782656655 A SU782656655 A SU 782656655A SU 2656655 A SU2656655 A SU 2656655A SU 716701 A1 SU716701 A1 SU 716701A1
Authority
SU
USSR - Soviet Union
Prior art keywords
result
molds
melt
casting
making hollow
Prior art date
Application number
SU782656655A
Other languages
Russian (ru)
Inventor
Валерьян Михайлович Архипов
Сергей Михайлович Зуев
Михаил Самуилович Качан
Юрий Николаевич Матюгин
Юрий Петрович Лапухин
Виктор Иванович Мишнев
Original Assignee
Новосибирский электротехнический институт
Предприятие П/Я В-2875
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 Новосибирский электротехнический институт, Предприятие П/Я В-2875 filed Critical Новосибирский электротехнический институт
Priority to SU782656655A priority Critical patent/SU716701A1/en
Application granted granted Critical
Publication of SU716701A1 publication Critical patent/SU716701A1/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B22CASTING; POWDER METALLURGY
    • B22CFOUNDRY MOULDING
    • B22C7/00Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/02Lost patterns
    • B22C7/023Patterns made from expanded plastic materials

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mold Materials And Core Materials (AREA)

Description

I - .- . Изобретеше относитс  .к литейному . производству и предназначено дл  npriyчени  полых отливок. Известен способ изготовлени  полых отливок, заключающийс  в устан бвке же ребейки на специальные прокладки из листового материала, легко свариваемого с металлом отливки l}.. . Однако при таком способе возможен непровар жеребеек с основным материалом отливки, что приводит к нарушению герметизации отливок. Известен также способ изготовлени  полых отливок, который включает проста новку стержн , фиксацию его в пслости формы жеребейкой из газифицируемых . материалов и заливку формы расппдаом Однако жеребейка не успевает пЬлностью расплавиТьс  или сгореть 6 про цессе даливки расплава и на поверхности отливки остаетс  шлак от жеребейки, а части ее, прилегающие к поверхности ержн  и формы, обволакиваютс  распда вом, вследствие чего образуютс  газовые раковины в телеотливки. Целью изобретени   вл етс  повышение качества отлквкй. Это достигаетс  тем, что перед запивкой формы расплавом в ее полость помещают легковоспламен емьгй материал, например гранул 1 вспененного полистирола .(---:,.-, На фиг. 1 схематически изображена. форма в сборе до запивки ее расплавокк на фиг. 2 - то же, после заливки. Стержень 1 устанавливают в форму . 2 и фиксируют его жеребейкой 3 в требуемом положении по отношению к рабочей полости формы. В форму помещают гранулы а вспененного полистирола и собирают ее. Расплав б заливают в литниковую систему 4. При соприкосновении с ним гранулы вспененного поли- . стирола загораютс  и зажигают, жеребейку 3 до подхода к ней расплава. Жеребейка , сгора , образует шлаки, в, которые при подходе расплава остаютс I - .-. Inventive relates to the foundry. production and is intended for npriycheni hollow castings. A known method of making hollow castings consists in installing the same guys on special pads of sheet material, easily welded to the metal of the casting l}. However, with this method, lack of penetration of foals with the main casting material is possible, which leads to a breach of the sealing of castings. There is also known a method of making hollow castings, which includes a simple rod, fixing it in the form of a pillar with a fossil from a gasified one. materials and filling the mold with raspda However, the foal does not have time to melt or burn 6 the process of removing the melt and slag from the foal remains on the surface of the casting, and parts of it adjacent to the surface of the walnut and the form are covered with burst, resulting in gas pockets in the body of molds, which result in gas sinks in the body of molds, and as a result, gas pockets form in the body of molds, and as a result, gas sinks are formed in the body, and as a result, gas pockets are formed in the body of molds, and as a result, gas pockets form in the body of molds, and as a result, gas pits are formed in the body, and as a result, gas pockets are formed in the body of molds, and as a result, gas pockets form in the body of molds, and as a result, gas pockets form in the body of molds, and as a result, gas pockets are melted in the body, and as a result, gas pockets form in body baths and molds, are covered with burst, and as a result gas shells are formed in the body of molds, as a result, gas pockets in the bodies of molds are formed; The aim of the invention is to improve the quality of quality. This is achieved by the fact that before zapivka forms melt in its cavity is placed flammable material, such as polystyrene foam granules 1. (---:.,. In Fig. 1 schematically depicted. Form assembly before zapivka her melts in Fig. 2 - the same, after pouring. The core 1 is placed in the mold 2 and fixed with the foal 3 in the required position relative to the working cavity of the mold.The pellets are placed in the mold of the expanded polystyrene and collected in it. The melt b is poured into the gating system 4. At the contact with him granules foamed floor and styrene burn and ignite, the colt 3 before the melt approaches it. The colt, the burn, forms slags, in, which, when the melt approaches, remain

Claims (1)

Формула изобретенияClaim Способ изготовления полой отливки, включающий простановку стержня, фиксацию его в полости формы жеребейкой из газофицируемых материалов и заливку формы расплавом, о т. л и ч а ю щ и йI, с целью повышения качества отливок, перед заливкой формы расплавом в её^падбСтЬ помещают легковое-A method of manufacturing a hollow casting, including the alignment of the rod, fixing it in the mold cavity with a draw of gasified materials and pouring the mold with a melt, so that the casting is performed, in order to improve the quality of castings, before casting the mold with melt it is placed in it passenger
SU782656655A 1978-08-14 1978-08-14 Method of making hollow casting SU716701A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU782656655A SU716701A1 (en) 1978-08-14 1978-08-14 Method of making hollow casting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU782656655A SU716701A1 (en) 1978-08-14 1978-08-14 Method of making hollow casting

Publications (1)

Publication Number Publication Date
SU716701A1 true SU716701A1 (en) 1980-02-28

Family

ID=20782115

Family Applications (1)

Application Number Title Priority Date Filing Date
SU782656655A SU716701A1 (en) 1978-08-14 1978-08-14 Method of making hollow casting

Country Status (1)

Country Link
SU (1) SU716701A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0343095A1 (en) * 1988-05-17 1989-11-23 Karl Schmidt Fabrik für Giessereibedarf GmbH & Co Chaplet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0343095A1 (en) * 1988-05-17 1989-11-23 Karl Schmidt Fabrik für Giessereibedarf GmbH & Co Chaplet

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