SU139406A1 - The method of applying a heat insulating layer of sand on the working surface of the mold in the centrifugal casting of single-flange pipes - Google Patents
The method of applying a heat insulating layer of sand on the working surface of the mold in the centrifugal casting of single-flange pipesInfo
- Publication number
- SU139406A1 SU139406A1 SU695543A SU695543A SU139406A1 SU 139406 A1 SU139406 A1 SU 139406A1 SU 695543 A SU695543 A SU 695543A SU 695543 A SU695543 A SU 695543A SU 139406 A1 SU139406 A1 SU 139406A1
- Authority
- SU
- USSR - Soviet Union
- Prior art keywords
- mold
- sand
- insulating layer
- heat insulating
- centrifugal casting
- Prior art date
Links
- 238000000034 method Methods 0.000 title description 7
- 239000004576 sand Substances 0.000 title description 7
- 238000009750 centrifugal casting Methods 0.000 title description 5
- 238000005266 casting Methods 0.000 description 4
- 229910001018 Cast iron Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 229910001208 Crucible steel Inorganic materials 0.000 description 2
- 241000601170 Clematis lasiantha Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
Landscapes
- Manufacturing Of Tubular Articles Or Embedded Moulded Articles (AREA)
Description
Известны способы центробежной отливки чугунных и стальных труб. Однако применение известных способов центробежной отливки не обеспечивает равномерное нанесение теплоизолирующего сло песка в требуемых пределах длины изложницы.Known methods of centrifugal casting of cast iron and steel pipes. However, the use of known centrifugal casting methods does not provide a uniform application of a heat insulating layer of sand within the required limits of the length of the mold.
Особенность предлагаемого способа заключаетс в том, что, с целью удержани теплоизол ционного сло песка в пределах формы, а также дл получени чугунных труб без отбела, а , стальных - без поверхностных трещин, в литейной форме устанавливают стержень дл офор «лени фланца так, что он образует со стволом изложницы кольцевой уступ, равный толщине сло песка, засыпанного в изложницу.The peculiarity of the proposed method is that, in order to keep the heat insulating layer of sand within the mold, as well as to obtain cast-iron pipes without chill, and steel pipes without surface cracks, a rod is installed in the mold for shaping the flange so that it forms an annular step with the barrel of the mold, equal to the thickness of the layer of sand poured into the mold.
Сущность описываемого способа заключаетс в том, что отливку однофланцевых чугунных и стальных труб производ т на горизонтальной центробежной литейной машине с применением дл формировани фланца трубы стержн , внутренний диаметр которого делают несколько меньше внутреннего диаметра изложницы, формующей ствол трубы, что предотвращает образование заливов между торцом цилиндрической части изложницы и стержнем.The essence of the described method is that the casting of single-flange cast-iron and steel pipes is carried out on a horizontal centrifugal casting machine using a rod for forming the pipe flange, the inner diameter of which makes somewhat smaller than the internal diameter of the mold forming the pipe stem, which prevents the formation of bays between the cylindrical end parts of the mold and core.
На чертеже показана литейна форма дл центробежной отливки однофланцевых труб описываемым способом. Литейна форма в собранном виде и вместе с отливкой состоит из крышки 1 с внутренней футеровкой 2, стержн 5, внутренний диаметр которого сделан меньще внутреннего диаметра изложницы 4 на толщину теплоизол ционного сло 5.The drawing shows a mold for centrifugal casting of single-flange pipes by the described method. The casting form assembled and together with the casting consists of a lid 1 with an inner lining 2, a rod 5 whose inner diameter is made smaller than the inner diameter of the mold 4 by the thickness of the heat insulating layer 5.
Предмет изобретени Subject invention
Способ нанесени теплоизолирующего сло песка на рабочую поверхность изложницы при центробежной отливке однофланцевых труб, отличающийс тем, что дл удержани песка в пределах формы, образующей ствол трубы, устанавливают стержень дл оформлени фланца так, что он образует со стволом изложницы кольцевой уступ, равный толщине сло песка, засыпаемого в изложницу.The method of applying a heat insulating layer of sand to the working surface of the mold when centrifugally casting single-flange pipes, characterized in that to keep the sand within the shape of the barrel, a rod is installed to shape the flange so that it forms an annular step equal to the thickness of the sand layer poured into the mold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU695543A SU139406A1 (en) | 1961-01-31 | 1961-01-31 | The method of applying a heat insulating layer of sand on the working surface of the mold in the centrifugal casting of single-flange pipes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SU695543A SU139406A1 (en) | 1961-01-31 | 1961-01-31 | The method of applying a heat insulating layer of sand on the working surface of the mold in the centrifugal casting of single-flange pipes |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| SU139406A1 true SU139406A1 (en) | 1961-11-30 |
Family
ID=48295493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SU695543A SU139406A1 (en) | 1961-01-31 | 1961-01-31 | The method of applying a heat insulating layer of sand on the working surface of the mold in the centrifugal casting of single-flange pipes |
Country Status (1)
| Country | Link |
|---|---|
| SU (1) | SU139406A1 (en) |
-
1961
- 1961-01-31 SU SU695543A patent/SU139406A1/en active
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