CN105458181A - Fiber riser knock-off core - Google Patents
Fiber riser knock-off core Download PDFInfo
- Publication number
- CN105458181A CN105458181A CN201610080133.3A CN201610080133A CN105458181A CN 105458181 A CN105458181 A CN 105458181A CN 201610080133 A CN201610080133 A CN 201610080133A CN 105458181 A CN105458181 A CN 105458181A
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- Prior art keywords
- hole
- knock
- liquid hole
- liquid
- core
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/08—Features with respect to supply of molten metal, e.g. ingates, circular gates, skim gates
- B22C9/088—Feeder heads
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
Abstract
The invention discloses a fiber riser knock-off core. The fiber riser knock-off core comprises a knock-off core body and a liquid hole for enabling the upper surface and the lower surface of the knock-off core body to be communicated. The knock-off core body is made from complex fiber materials, is conical, and is provided with an arc notch; the liquid hole comprises an upper conical liquid hole body with an upward large opening and a lower inverted-cone-shaped liquid hole body with a downward large opening, and a smaller opening of the upper conical liquid hole body and a smaller opening of the lower inverted-cone-shaped liquid hole body are equal in diameter and are in integral butt joint; the height of the upper conical liquid hole body is at least five times that of the lower inverted-cone-shaped liquid hole body, and the slope of the inner wall of the upper conical liquid hole body is 3:5. According to the fiber riser knock-off core, as the new knock-off core structure is designed, a riser is easy to clean, and the aims of reducing labor intensity and improving working efficiency are achieved. As the complex fiber materials are adopted to replace fire resistant materials, the feeding effect of the riser is improved under the heat preservation effect and the heating effect of the fiber materials.
Description
Technical field
The invention belongs to casting technology field, be specifically related to a kind of fiber riser pad be arranged between foundry goods chamber and rising head.
Background technology
At present, in Foundry Production, for avoiding foundry goods to occur defect, above foundry goods or side be provided with dead head structure, general dead head structure by rising head be arranged on rising head lower end and the cameron core be communicated with foundry goods die cavity is formed.In casting mold, the die cavity of rising head is the cavity of storage liquid metal, the supply metal when foundry goods is formed, and have the effect preventing shrinkage cavity and porosity, exhaust and collection slag, and the Main Function of rising head is feeding.The residual metallic liquid not recharging foundry goods die cavity in rising head die cavity is then the casting pressing port be connected with foundry goods body with foundry goods cooling forming.The object that cameron core is arranged is convenient to being separated of casting pressing port and foundry goods body, prevents from injuring foundry goods body when separating casting rising head and foundry goods body.Existing riser pad and casting pressing port support the use state diagram as shown in Figure 3, and existing riser pad exists following defect, and one, existing riser pad adopts fireclay refractory machine-shaping, feeding effect is relatively poor.Two, there is structural design defect in existing riser pad, and its thickness and upper liquid-through hole are not all optimum designs with the gradient ratio of lower liquid-through hole yet, and each dead head structure needs to support the use a cameron core, and its cameron core usage quantity is huge.Therefore the design feature of existing riser pad can cause rising head cleaning work difficulty large, thus the labour intensity causing casting pressing port to be separated with foundry goods body is large, inefficiency.Therefore, design new riser pad to seem and be even more important.
Open on January 15th, 2012, publication number is CN102328030A, name is called " riser pad " Chinese patent document, disclose a kind of cameron core, solve casting pressing port and foundry goods body bonding strength large, casting pressing port is separated difficult problem with foundry goods body, and structure is mainly for the cross-sectional outling shape of upper liquid-through hole and lower liquid-through hole, pointed and monistic feature, but not there is the versatility of general riser pad.
Summary of the invention
The present invention is directed to above-mentioned the deficiencies in the prior art, a kind of fiber riser pad is provided, cameron core body employing composite fibre material makes the structure of one-step optimization design riser pad of going forward side by side, both improve the feeding effect of rising head, the difficulty further reducing again casting pressing port and foundry goods body bonding strength and be separated.
The technical solution adopted in the present invention is: a kind of fiber riser pad, comprise the liquid-through hole on cameron core body and the upper and lower surface of conducting cameron core body, described cameron core body adopts complex fiber material to make, and this body profile of cameron core is tapered and have arc gap; Described liquid-through hole comprises the lower back taper liquid-through hole of large mouth upper conical liquid-through hole upward and large mouth down, and described upper conical liquid-through hole butts up against integrally with lower back taper liquid-through hole osculum equal diameters; Described upper conical liquid-through hole height is at least 5 times of lower back taper liquid-through hole height, and the interior draft of described upper conical liquid-through hole is 3:5.
In a kind of preferred embodiment of the present invention, the height of described cameron core body is 30mm, and the height of described upper conical liquid-through hole is 25mm, and the height of lower liquid-through hole is 5mm.
Compared to prior art, the beneficial effect that the present invention has:
One, a kind of casting pressing port and the low cameron core version of foundry goods body mask work intensity are provided, riser pad thickness is designed to 30mm by original 12mm, and add riser pad gap structure, rising head is cleared up be more prone to, and reduce casting pressing port and foundry goods body bonding strength and separating difficulty thereof, improve operating efficiency greatly.
Two, riser pad adopts complex fiber material to substitute refractory material.This complex fiber material is identical with the insulated feeder material that workshop uses, and has insulation, heating functioin, improves the feeding effect of rising head.
Three, riser pad adopts complex fiber material better compared with the fire-resistant cameron core toughness of clayey, not fragile, can be reduced in the proportion of goods damageds in transport, use procedure, cost-saving.
Four, the present invention can meet and adapt to existing production, and the design of this device has versatility in the middle of production application, and the scope of application is comparatively extensive, simultaneously structure and make also relative simple, use procedure safety, stablizes.
Accompanying drawing explanation
Fig. 1 is main-vision surface structure cross-sectional schematic of the present invention;
Fig. 2 is that the present invention overlooks face structural representation;
Fig. 3 is using state schematic diagram one of the present invention;
Fig. 4 is using state schematic diagram two of the present invention.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
A kind of fiber riser pad, structure as shown in Figure 1 and Figure 2, comprise the liquid-through hole 2 on cameron core body 1 and the upper and lower surface of conducting cameron core body 1, described cameron core body 1 adopts complex fiber material to make, and cameron core body 1 profile is tapered and have arc gap 11; Described liquid-through hole 2 comprises the lower back taper liquid-through hole 22 of large mouth upper conical liquid-through hole 21 upward and large mouth down, and described upper conical liquid-through hole 21 butts up against one with lower back taper liquid-through hole 22 osculum equal diameters; Described upper conical liquid-through hole 21 is highly at least 5 times of lower back taper liquid-through hole 22 height, and the interior draft of described upper conical liquid-through hole 21 is 3:5.
In the preferred embodiment, the height of described cameron core body 1 is 30mm, and described cameron core thickness is designed to 30mm by original 12mm, namely the stressed moment of rising head in rising head scale removal process is increased, make rising head be more prone to cleaning, reach and can reduce labour intensity, the object of increasing work efficiency.In artificial hammering cleaning rising head mode, fire-resistant cameron core structure clears up a rising head needs hammering 5 to hammer into shape, and fiber riser pad only needs 3 hammers can clear up a rising head.
Described cameron core body 1 adopts complex fiber material to make, and instead of fireclay refractory, identical with normally used exothermic riser material, by fibrous material insulation, heating functioin, improves the feeding effect of rising head, improves molten steel utilization rate.Single insulated feeder internal volume is about 2680.63cm3, be scaled steel quality and be about 2680.63cm3*7.1g/cm3=19Kg, sum up through pilot production, support the use fire-resistant cameron core rising head weight after solidification and be about 17.2Kg, support the use composite fibre cameron core weight after solidification and be about 15.8Kg, each rising head can many feeding 1.4Kg molten steel.Complex fiber material comparatively fireclay refractory toughness is better, not fragile, can be reduced in the proportion of goods damageds in transport, use procedure, cost-saving.Show according to statistics for many years, the proportion of goods damageds of fire-resistant cameron core can reach 7%, and for 2015, use insulated feeder 92000, the loss of fire-resistant cameron core was about 6500, and the proportion of goods damageds reach 7.1%.Fiber cameron core can solve this problem, up to now, does not also occur the breakage in transport, use procedure.
In a further preferred embodiment, described upper liquid-through hole 21 is respectively 25mm, 5mm with the height of described lower liquid-through hole 22.This structure reduce further casting pressing port and foundry goods body bonding strength and mask work intensity, makes rising head be more prone to cleaning, reaches and can reduce labour intensity, the object of increasing work efficiency.
It should be noted that, the riser pad that general foundry enterprise uses mostly is circular, and fiber riser pad adds a gap structure 11 of camber 20mm, makes two rising head minimum spacings be reduced into 160mm by original 200mm.Many times, because technique needs to be close to continuously to arrange rising head on foundry goods, but often because rising head minimum spacing is excessive, two rising heads disturb mutually, and technique cannot realize.Through this improvement, minimum spacing is reduced into 160mm by original 200mm, can use rising head technique much between 160mm and 200mm.
Operation principle of the present invention is introduced in detail: described cameron core body 1 is arranged on casting pressing port 4 lower end and is communicated with foundry goods 6 die cavity below in conjunction with Fig. 3 and Fig. 4.During work, as shown in Figure 3, when casting pressing port 4 needs to be separated with cameron core body 1, by maximum 3 times of jump bit 5 hammering casting pressing port, casting pressing port 4 can successfully be separated with cameron core body 1, as shown in Figure 4.
The present invention is from safety in production and reduce labour intensity, by designing new cameron core structure, making rising head be easy to cleaning, reaching reduction labour intensity, the object of increasing work efficiency.From the feeding effect improving rising head, adopt complex fiber material to substitute refractory material, by insulation, the heating functioin of fibrous material, improve the feeding effect of rising head.
Above-described embodiment, just preferred embodiment of the present invention, is not used for limiting practical range of the present invention, therefore all equivalent variations done with content described in the claims in the present invention, all should be included within the claims in the present invention scope.
Claims (2)
1. fiber riser pad, comprise the liquid-through hole (2) on cameron core body (1) and conducting cameron core body (1) upper and lower surface, it is characterized in that: described cameron core body (1) adopts complex fiber material to make, and cameron core body (1) profile is tapered and have arc gap (11); Described liquid-through hole (2) comprises the lower back taper liquid-through hole (22) of large mouth upper conical liquid-through hole (21) upward and large mouth down, and described upper conical liquid-through hole (21) butts up against one with lower back taper liquid-through hole (22) osculum equal diameters; Described upper conical liquid-through hole (21) is highly at least 5 times of lower back taper liquid-through hole (22) height, and the interior draft of described upper conical liquid-through hole (21) is 3:5.
2. fiber riser pad according to claim 1, is characterized in that: the height of described cameron core body (1) is 30mm, and the height of described upper conical liquid-through hole (21) is 25mm, and the height of lower liquid-through hole (22) is 5mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610080133.3A CN105458181B (en) | 2016-02-04 | 2016-02-04 | Fiber riser pad |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610080133.3A CN105458181B (en) | 2016-02-04 | 2016-02-04 | Fiber riser pad |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105458181A true CN105458181A (en) | 2016-04-06 |
| CN105458181B CN105458181B (en) | 2018-02-16 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610080133.3A Active CN105458181B (en) | 2016-02-04 | 2016-02-04 | Fiber riser pad |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111515341A (en) * | 2020-02-21 | 2020-08-11 | 中铁物总技术有限公司 | Method for improving internal quality of high manganese steel frog and reducing production cost |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1748905A (en) * | 2005-09-29 | 2006-03-22 | 朱晓明 | Fiber composite heat insulation riser sleever |
| JP2008200733A (en) * | 2007-02-22 | 2008-09-04 | Onishi Sangyo:Kk | Cut type wire gauze filter |
| CN201702324U (en) * | 2010-05-14 | 2011-01-12 | 六和铸造工业(昆山)有限公司 | Heat-insulating feeder head |
| CN104368761A (en) * | 2014-11-18 | 2015-02-25 | 贵州安吉航空精密铸造有限责任公司 | Heating and thermal insulation riser sleeve |
| CN204545325U (en) * | 2015-03-06 | 2015-08-12 | 桐乡合德机械有限公司 | Shaping riser pad |
| CN104972095A (en) * | 2015-07-16 | 2015-10-14 | 南车戚墅堰机车车辆工艺研究所有限公司 | Insulating and exothermic riser for metal-mould low pressure casting and manufacturing method and application thereof |
| CN205519501U (en) * | 2016-02-04 | 2016-08-31 | 中铁宝桥集团有限公司 | Fibre rising head easily cuts piece |
-
2016
- 2016-02-04 CN CN201610080133.3A patent/CN105458181B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1748905A (en) * | 2005-09-29 | 2006-03-22 | 朱晓明 | Fiber composite heat insulation riser sleever |
| JP2008200733A (en) * | 2007-02-22 | 2008-09-04 | Onishi Sangyo:Kk | Cut type wire gauze filter |
| CN201702324U (en) * | 2010-05-14 | 2011-01-12 | 六和铸造工业(昆山)有限公司 | Heat-insulating feeder head |
| CN104368761A (en) * | 2014-11-18 | 2015-02-25 | 贵州安吉航空精密铸造有限责任公司 | Heating and thermal insulation riser sleeve |
| CN204545325U (en) * | 2015-03-06 | 2015-08-12 | 桐乡合德机械有限公司 | Shaping riser pad |
| CN104972095A (en) * | 2015-07-16 | 2015-10-14 | 南车戚墅堰机车车辆工艺研究所有限公司 | Insulating and exothermic riser for metal-mould low pressure casting and manufacturing method and application thereof |
| CN205519501U (en) * | 2016-02-04 | 2016-08-31 | 中铁宝桥集团有限公司 | Fibre rising head easily cuts piece |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111515341A (en) * | 2020-02-21 | 2020-08-11 | 中铁物总技术有限公司 | Method for improving internal quality of high manganese steel frog and reducing production cost |
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| Publication number | Publication date |
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| CN105458181B (en) | 2018-02-16 |
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Inventor after: Wu Haibin Inventor after: Qiu Changchang Inventor after: Gong Rongheng Inventor after: Tan Honggang Inventor before: Qiu Changchang Inventor before: Gong Rongheng Inventor before: Tan Honggang |
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