CN203556800U - Knock-off core for heating feeder head of large-sized steel casting - Google Patents
Knock-off core for heating feeder head of large-sized steel casting Download PDFInfo
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- CN203556800U CN203556800U CN201320728618.0U CN201320728618U CN203556800U CN 203556800 U CN203556800 U CN 203556800U CN 201320728618 U CN201320728618 U CN 201320728618U CN 203556800 U CN203556800 U CN 203556800U
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- cameron core
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Abstract
The utility model relates to a knock-off core for heating a feeder head of a large-sized steel casting. An upper groove, a lower groove and a fracture of the knock-off core are made of mold core materials; the diameter of the upper groove of the knock-off core is smaller than that of the feeder head; the included angle between the upper groove and the upper surface of the fracture is 135-150 degrees; the included angle between the lower groove and the lower surface of the fracture is 120-150 degrees; the height from the lower groove to the casting surface is 1/5 to 1-/4 of the thickness of the knock-off core; the thickness of the fracture is 1/5 to 1/4 of the thickness of the knock-off core; a heating rod is positioned at the interior of the contact surface of the upper groove and the feeder head vertical to the upper surface of the casting. The heating rod is made of Fe-Cr-Al electrical thermal alloy material, is positioned at the interior of the contact surface of the upper groove and the feeder head vertical to the upper surface of the casting, and can be used repeatedly. As the knock-off core with special design and the heating technology are adopted, the diameter of the neck of the feeder head can be greatly reduced, the fracture surface of the feeder head is smaller, and the knock-off core is easier to cut.
Description
Technical field
The utility model relates to a kind of large-scale steel-casting riser heating cameron core, a kind of specifically riser pad that heats, is easy to cutting.
Background technology
In process of production, in order to prevent from forming shrinkage cavity, the place that in the end solidify settles rising head to carry out feeding to foundry goods, and sometimes the rising head weight of steel-casting is equivalent to the more than 50% of casting weight, even surpasses the weight of foundry goods.After casting solidification, these rising heads are all wanted cleaned and are fallen, and the work of cutting off rising head is a very hard work, generally cut off steel-casting rising head and adopt oxygen and acetylene gas, and area of fracture is larger, expends the energy more, and easily cause foundry goods cracking.Knock-off head of the prior art, lays pitch cutting at rising head root exactly, molten metal by the preformed hole in the middle of pitch cutting to feeding a casting.Preformed hole is less, and section is less, and rising head more easily cuts off, and foundry goods can be more complete.But the thickness of rising head diameter and cameron core is directly proportional, particularly large-scale steel-casting, the thickness of pitch cutting can surpass more than 100 millimeters, and thick large pitch cutting meeting absorbs the heat of metal in rising head, makes rising head rapid solidification, and at rising head neck, can first solidify the Feeding channel of blocking-up rising head.Meanwhile, along with preformed hole diminishes, first feeding a casting passage also can solidify, and the Feeding channel of rising head can interrupt equally, and rising head just can not reach the feeding effect to foundry goods in advance like this, also can make foundry goods produce defect, and even foundry goods is scrapped.
Summary of the invention
Goal of the invention: above-mentioned traditional rising head is difficult to cut in order to solve, preformed hole diminishes interrupts reaching the technical problem to the feeding effect of foundry goods in advance, the utility model provides a kind of steel-casting riser heating cameron core, special in the large-scale steel-casting that is difficult to tackle, can effectively address this problem.
Technical scheme: the utility model is implemented by the following technical programs:
A kind of large-scale steel-casting riser heating cameron core, it is characterized in that: cameron core is comprised of upper groove, lower groove, fracture, porcelain bushing and heating rod, the diameter of the upper groove of cameron core is less than the diameter of rising head, angle between upper groove and fracture upper surface is 135～150 degree, angle between lower groove and fracture lower surface is 120～150 degree, lower groove is the 1/5-1/4 of cameron core thickness apart from the height of cast(ing) surface, and the thickness of fracture is the 1/5-1/4 of cameron core thickness; Heating rod is positioned at the inside of the vertical upper surface to foundry goods of contact-making surface of groove and rising head.
What heating rod was used is ferrum-chromium-aluminum electrothermal alloy material heating rod heating rod.
The material of described cameron core adopts the material of core.
The axis conllinear of the axis of rising head and cameron core.
The axis conllinear of the axis of fracture and heating rod.
Advantage and effect: the utility model is provided with cameron core in the bottom of rising head, cameron core is by upper groove, effective design of lower groove and fracture, make foundry goods form cutting in the place of fracture, greatly reduced the connection area of rising head and foundry goods, reusable heating rod is installed simultaneously on the axis of fracture, so just can effectively prevent because preformed hole diminishes the interrupted problem of feeding a casting passage, although reduced the cutting mouth area of foundry goods, but also can reach the feeding effect to foundry goods in advance, can not make foundry goods produce defect, the mach work difficulty after moulding that effectively reduced foundry goods, improve foundry work efficiency.
accompanying drawing explanation:
Fig. 1 is the utility model primary structure schematic diagram;
Fig. 2 is top view of the present utility model.
Mark in figure: 1, rising head, 2, cameron core, 3, upper groove, 4, fracture, 5, lower groove,
6, porcelain bushing, 7, heating tube.
the specific embodiment:below in conjunction with accompanying drawing, the utility model is specifically described:
A kind of large-scale steel-casting riser heating cameron core, it is characterized in that: cameron core is comprised of upper groove 3, lower groove 5, fracture 4, porcelain bushing 6 and heating rod 7, the diameter of the upper groove 3 of cameron core is less than the diameter of rising head 1, angle between upper groove 3 and fracture 4 upper surfaces is 135～150 degree, angle between lower groove 5 and fracture 4 lower surfaces is 120～150 degree, lower groove 5 is the 1/5-1/4 of cameron core 2 thickness apart from the height of cast(ing) surface, and the thickness of fracture 4 is the 1/5-1/4 of cameron core 2 thickness; Heating rod 7 is positioned at the inside of the vertical upper surface to foundry goods of contact-making surface of groove 3 and rising head 1.
What heating rod 7 was used is ferrum-chromium-aluminum electrothermal alloy material heating rod heating rod.The material of described cameron core 2 adopts the material of core.The axis conllinear of the axis of rising head 1 and cameron core 2.The axis conllinear of the axis of fracture 4 and heating rod 7.
The bottom of rising head 1 is provided with the cameron core 4 that internal diameter is less than rising head 1,, guarantee that molten metal can only enter rising head by fracture 9; Fracture 9, by the design of upper groove 7 and lower groove 8, guarantees, after foundry goods is cooling, knocks rising head 1 it is knocked from foundry goods, and the plane of disruption, on fracture 9, is convenient to the cutting of rising head 1.
Embodiment mono-:
A large-scale steel-casting riser heating cameron core, cameron core is comprised of upper groove, lower groove, fracture and heating rod.The diameter of upper groove is the 1/2-3/4 of rising head diameter.The material of cameron core requires to have higher intensity, gas permeability, deformability and collapsibility, adopts the material of core to make.The axis conllinear of the axis of rising head and cameron core.Angle between upper groove and fracture upper surface is 150 degree; Angle between lower groove and fracture lower surface is 120 degree.Lower groove is 1/4 of cameron core thickness apart from the height of cast(ing) surface.
The thickness of fracture is 1/4 of cameron core thickness, heating rod be positioned at groove and rising head the vertical upper surface to foundry goods of contact-making surface inside and with the axis conllinear of fracture.What heating rod was used is ferrum-chromium-aluminum electrothermal alloy material heating rod, be arranged in porcelain bushing, connect power supply, the function with constant confession temperature, heating-up temperature 1000-1200 ℃, continues for temperature the molten metal of rising head neck, delay solidifying of rising head neck, thereby keep the unimpeded of riser feeding passage, also can heat to the root of rising head, improve riser feeding effect simultaneously.By analog computation, draw the heat time of heating rod, when feeding a casting completes, stop heating.When solidifying end, heating rod can be pulled out from porcelain bushing the inside, so that recycling.
Embodiment bis-:
A large-scale steel-casting riser heating cameron core, cameron core is comprised of upper groove, lower groove, fracture and heating rod.The diameter of upper groove is 1/4-3/4 of rising head diameter.The material of cameron core adopts the material of core to make, and by Modeling Materials such as casting model powder, moulding sand binder and additional things, is mixed according to a certain percentage.The axis conllinear of the axis of rising head and cameron core.Angle between upper groove and fracture upper surface is 135 degree; Angle between lower groove and fracture lower surface is 150 degree.Lower groove is 1/5 of cameron core thickness apart from the height of cast(ing) surface.
The thickness of fracture is 1/4 of cameron core thickness, after foundry goods is cooling, rising head directly can be smashed, and cut surface is on fracture.Heating rod be positioned at groove and rising head the vertical upper surface to foundry goods of contact-making surface inside and with the axis conllinear of fracture.What heating rod was used is ferrum-chromium-aluminum electrothermal alloy material heating rod, be arranged in porcelain bushing, connect power supply, the function with constant confession temperature, heating-up temperature 1000-1200 ℃, continues for temperature the molten metal of rising head neck, delay solidifying of rising head neck, thereby keep the unimpeded of riser feeding passage, also can heat to the root of rising head, improve riser feeding effect simultaneously.
Claims (5)
1. a large-scale steel-casting riser heating cameron core, it is characterized in that: cameron core is by upper groove (3), lower groove (5), fracture (4), porcelain bushing (6) and heating rod (7) form, the diameter of the upper groove (3) of cameron core is less than the diameter of rising head (1), angle between upper groove (3) and fracture (4) upper surface is 135～150 degree, angle between lower groove (5) and fracture (4) lower surface is 120～150 degree, lower groove (5) is the 1/5-1/4 of cameron core (2) thickness apart from the height of cast(ing) surface, the thickness of fracture (4) is the 1/5-1/4 of cameron core (2) thickness, heating rod (7) is positioned at the inside of the vertical upper surface to foundry goods of contact-making surface of groove (3) and rising head (1).
2. large-scale steel-casting riser heating cameron core according to claim 1, is characterized in that: what heating rod (7) was used is ferrum-chromium-aluminum electrothermal alloy material heating rod heating rod.
3. large-scale steel-casting riser heating cameron core according to claim 1, is characterized in that: the material of described cameron core (2) adopts the material of core.
4. large-scale steel-casting riser heating cameron core according to claim 1, is characterized in that: the axis conllinear of the axis of rising head (1) and cameron core (2).
5. large-scale steel-casting riser heating cameron core according to claim 1, is characterized in that: the axis conllinear of the axis of fracture (4) and heating rod (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320728618.0U CN203556800U (en) | 2013-11-14 | 2013-11-14 | Knock-off core for heating feeder head of large-sized steel casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320728618.0U CN203556800U (en) | 2013-11-14 | 2013-11-14 | Knock-off core for heating feeder head of large-sized steel casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203556800U true CN203556800U (en) | 2014-04-23 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320728618.0U Withdrawn - After Issue CN203556800U (en) | 2013-11-14 | 2013-11-14 | Knock-off core for heating feeder head of large-sized steel casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203556800U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551514A (en) * | 2013-11-14 | 2014-02-05 | 沈阳工业大学 | Dead head heating easily-cutting piece of large steel casting |
-
2013
- 2013-11-14 CN CN201320728618.0U patent/CN203556800U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103551514A (en) * | 2013-11-14 | 2014-02-05 | 沈阳工业大学 | Dead head heating easily-cutting piece of large steel casting |
| CN103551514B (en) * | 2013-11-14 | 2015-07-08 | 沈阳工业大学 | Dead head heating easily-cutting piece of large steel casting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140423 Effective date of abandoning: 20150708 |
|
| RGAV | Abandon patent right to avoid regrant |