CN101791694A - Flabelliform-slope buffered sprue cup for casting - Google Patents
Flabelliform-slope buffered sprue cup for casting Download PDFInfo
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- CN101791694A CN101791694A CN 201010143653 CN201010143653A CN101791694A CN 101791694 A CN101791694 A CN 101791694A CN 201010143653 CN201010143653 CN 201010143653 CN 201010143653 A CN201010143653 A CN 201010143653A CN 101791694 A CN101791694 A CN 101791694A
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Abstract
The invention relates to a flabelliform-slope buffered sprue cup for casting. The sprue cup comprises a sprue cup body, which is provided with a flabelliform melt pool, the bottom of the melt pool is sloped, moreover, the highest position of the bottom is located at the large-diameter end of the melt pool, and the lowest position of the bottom is located at the small-diameter end of the melt pool; and a downsprue which vertically penetrates downwards is arranged at the small-diameter position of the melt pool. The sprue cup adopts novel carborundum refractory, the novel carborundum refractory is mechanically pressed, and is then sintered under high temperature, the refractoriness of the sprue cup can be up to more than 1700 DEG C, and the service life is long. The sprue cup is used for the sand casting of grinding balls (grinding section), and can remarkably reduce casting defects such as air holes, sand holes, splashings and sand burning, and the yield can be up to more than 97 percent.
Description
Technical field
The invention belongs to the cast gate that is used to cast, be specifically related to be used for the cup of wear-resistant medium foundry goods casting.
Background technology
The effect of cup is that liquid metal is imported the mold cavity mouth.The cup of small-sized foundry goods mostly is an infundibulate, and the cup of medium-sized or above foundry goods often is a basin shape, and the foundry goods that quality requirement is high also will be installed collection slag devices such as filter in cup.If cup design or select for use unreasonable, just may make casting flaws such as foundry goods generation pore, trachoma, splashings, slag blister, shrinkage cavity, crackle and misrun.Therefore, the structure of correct selection cup and size and reasonably arrangement on casting mold are one of key factors that improves casting product quality, reduction casting wasted product rate.
Cast grinding ball (mill section) as a kind of abrasive media, is widely used in the powder technology of industries such as building material cement, mine metallurgy, energy thermoelectricity, nonmetal processing, water-coal-slurry and magnetic material.Owing to need satisfy the requirement of every profession and trade distinct device, different working conditions, specification also from
Arrive
Even larger diameter.At present, the most abrading-balls of China (mill section) manufacturing enterprise still adopts ordinary sand casting for reducing cost, the also most clay of simple type or sprue cup cups that common refractory is made of using.The reason of using the sprue cup cup to produce whirlpool is when the direct hopper shape of molten metal cup, and each is to flow and unbalanced, and certain flow direction of first-class strand departs from the cup center, will form horizontal eddy current.According to hydraulic principle, horizontal eddy current is lower near centre pressure, and liquid level is lower, the dregs that float over like this on the liquid level can be along the liquid level of bending, the one side rotation, one side and air together enter sprue, will form casting flaws such as oxide slag inclusion, pore.Simultaneously, when using the sprue cup cup, molten metal can directly wash away mold at a high speed, causes casting flaws such as splashings, scab, slag blister, shrinkage cavity, crackle and misrun.Therefore this sprue cup cup is only applicable to the small-sized low side foundry goods to less demanding sand casting of pushing off the slag and permanent mold casting, far can not satisfy the demand of domestic and international market to high-quality abrading-ball, mill section.
Summary of the invention
In order to solve the defective that exists in the use of sprue cup cup, the invention provides a kind of Flabelliform-slope buffered sprue cup for casting.
Concrete structural design scheme is such:
Flabelliform-slope buffered sprue cup for casting comprises the cup cup, and described cup cup is provided with fan-shaped liquid-bath, and the bottom surface of liquid-bath is domatic, and the highest point of bottom surface is positioned at the larger diameter end of liquid-bath, and lowest part is positioned at the smaller diameter end of liquid-bath; The minor diameter place of liquid-bath is provided with the down gate that connects vertically downward.
The big end radius of described fan-shaped liquid-bath is the 80-150 millimeter, and the small end radius is the 15-80 millimeter, and the centre-to-centre spacing between the two ends is the 150-200 millimeter, and its degree of depth is the 80-120 millimeter; Its bottom surface gradient is the 2-15 degree; The down gate diameter is the 30-60 millimeter.
Described cup cup material is a Tercod.
The present invention thoroughly overcomes the deficiency of sprue cup cup according to the characteristics of hydraulic principle and wear resistance castings pouring technology in the mode of buffering indirect casting.Concrete useful technique effect embodies in the following areas:
1, Flabelliform-slope buffered sprue cup of the present invention adopts the novel silicon carbide refractory material, and through mechanical pressing, and then through high temperature sintering, its refractoriness can be up to more than 1700 ℃.The novel silicon carbide refractory material possesses the anti-slagging of retractory, slows down the formation of reaction metamorphic layer; The intensity height, anti-washing away; Heat-resisting shake, the opposing thermal shocking; Thermoplasticity is good under the high temperature, buffering thermal stress, few dry slag, characteristics such as long service life.
2, the present invention is fixed on the mold top behind the inwall brush cast paint in use, and the cast gate on its down gate and the mold matches.Molten metal injects the covering of the fan end of fan-shaped liquid-bath during casting, because of the covering of the fan end of accepting from the casting ladle molten metal is an inverted cone surface, can effectively prevent splashing and overflowing of molten metal.The molten metal of liquid-bath also forms metal bath surface in the pond when flowing to down gate, flow into down gate again after making the poring rate of molten metal reach suitable size.The metal liquid degree of depth in the cup liquid-bath increases like this, can stop the formation of the horizontal vortex of vertical axis rotation, thereby help separating dregs and bubble, effectively avoids the generation of defectives such as pore, shrinkage cavity, slag blister, crackle and misrun.
3, the present invention makes the kinetic energy major part that falls from the metal liquid stream of casting ladle be absorbed by fan-shaped liquid-bath inner metal liquid and changes the pressure energy into, can be converted into horizontal velocity by pressure again and flow to down gate, thereby alleviated washing away to down gate bottom casting mold, further reduce casting flaws such as splashings, scab, significantly reduced the casting wasted product rate, thereby improved casting product quality, the percentage of A-class goods can reach more than 97%.
Description of drawings
Fig. 1 is a structure cutaway view of the present invention,
Fig. 2 is the vertical view of Fig. 1.
The specific embodiment
Below in conjunction with accompanying drawing, the present invention is done to describe further by embodiment.
Embodiment 1:
Referring to Fig. 1 and Fig. 2, be used for producing
The Flabelliform-slope buffered sprue cup of wear-resisting ball comprises cup cup 1, and cup cup material is a Tercod.Cup cup 1 is provided with fan-shaped liquid-bath 2, and the bottom surface 3 of liquid-bath is domatic, and the highest point of bottom surface is positioned at the larger diameter end of liquid-bath, and lowest part is positioned at the smaller diameter end of liquid-bath; The minor diameter place of liquid-bath 2 is provided with the down gate 4 that connects vertically downward.
The big end radius of fan-shaped liquid-bath 2 is 85 millimeters, and the small end radius is 15 millimeters, and the centre-to-centre spacing between the two ends is 157 millimeters, and its degree of depth is 80 millimeters; Its bottom surface gradient α is 2.5 degree; The down gate diameter is 30 millimeters.Its monnolithic case is of a size of 310 * 220 * 160 (millimeters).
Embodiment 2:
Be used for producing
The Flabelliform-slope buffered sprue cup of wear-resisting ball, the big end radius of its liquid-bath 2 is 120 millimeters, and the small end radius is 25 millimeters, and the centre-to-centre spacing between the two ends is 180 millimeters, and its degree of depth is 100 millimeters; Its bottom surface gradient α is 15 degree; The down gate diameter is 50 millimeters.
Other is with embodiment 1.
Claims (3)
1. Flabelliform-slope buffered sprue cup for casting, comprise the cup cup, it is characterized in that: described cup cup is provided with fan-shaped liquid-bath, and the bottom surface of liquid-bath is domatic, and the highest point of bottom surface is positioned at the larger diameter end of liquid-bath, and lowest part is positioned at the smaller diameter end of liquid-bath; The minor diameter place of liquid-bath is provided with the down gate that connects vertically downward.
2. Flabelliform-slope buffered sprue cup for casting according to claim 1, it is characterized in that: the big end radius of described fan-shaped liquid-bath is the 80-150 millimeter, the small end radius is the 15-80 millimeter, and the centre-to-centre spacing between the two ends is the 150-200 millimeter, and its degree of depth is the 80-120 millimeter; Its bottom surface gradient is the 2-15 degree; The down gate diameter is the 30-60 millimeter.
3. Flabelliform-slope buffered sprue cup for casting according to claim 1 is characterized in that: described cup cup material is a Tercod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010143653 CN101791694A (en) | 2010-04-08 | 2010-04-08 | Flabelliform-slope buffered sprue cup for casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010143653 CN101791694A (en) | 2010-04-08 | 2010-04-08 | Flabelliform-slope buffered sprue cup for casting |
Publications (1)
| Publication Number | Publication Date |
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| CN101791694A true CN101791694A (en) | 2010-08-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201010143653 Pending CN101791694A (en) | 2010-04-08 | 2010-04-08 | Flabelliform-slope buffered sprue cup for casting |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334047A (en) * | 2013-07-09 | 2013-10-02 | 曲沃县民政福利企业有限公司 | Spheroidizing ladle cover provided with drainage device |
| CN104511568A (en) * | 2014-12-30 | 2015-04-15 | 西峡县众德汽车部件有限公司 | Runner structure with downsprue |
| CN104926293A (en) * | 2015-06-23 | 2015-09-23 | 郑州远东耐火材料有限公司 | Pouring cup for production of electro-fused zirconia alumina |
| CN112846087A (en) * | 2020-12-30 | 2021-05-28 | 宁波金汇精密铸造有限公司 | Filter type pouring cup and sand box |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5948349A (en) * | 1989-11-17 | 1999-09-07 | Sollac | Ladle for the preparation of metal provided with a refractory bottom lining and method for producing said refractory bottom lining |
| CN2550092Y (en) * | 2002-06-03 | 2003-05-14 | 江铃汽车股份有限公司 | Casting quantitative filter feed head |
| CN201304484Y (en) * | 2008-11-13 | 2009-09-09 | 陕西法士特汽车传动集团有限责任公司 | Runner cup for lost foam casting |
| CN201632637U (en) * | 2010-04-08 | 2010-11-17 | 安徽省凤形耐磨材料股份有限公司 | Fan-shaped slope buffering sprue cup for casting |
-
2010
- 2010-04-08 CN CN 201010143653 patent/CN101791694A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5948349A (en) * | 1989-11-17 | 1999-09-07 | Sollac | Ladle for the preparation of metal provided with a refractory bottom lining and method for producing said refractory bottom lining |
| CN2550092Y (en) * | 2002-06-03 | 2003-05-14 | 江铃汽车股份有限公司 | Casting quantitative filter feed head |
| CN201304484Y (en) * | 2008-11-13 | 2009-09-09 | 陕西法士特汽车传动集团有限责任公司 | Runner cup for lost foam casting |
| CN201632637U (en) * | 2010-04-08 | 2010-11-17 | 安徽省凤形耐磨材料股份有限公司 | Fan-shaped slope buffering sprue cup for casting |
Non-Patent Citations (1)
| Title |
|---|
| 《铸工》 19530701 无 浇口杯的设计和计算 , 第7期 2 * |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334047A (en) * | 2013-07-09 | 2013-10-02 | 曲沃县民政福利企业有限公司 | Spheroidizing ladle cover provided with drainage device |
| CN104511568A (en) * | 2014-12-30 | 2015-04-15 | 西峡县众德汽车部件有限公司 | Runner structure with downsprue |
| CN104926293A (en) * | 2015-06-23 | 2015-09-23 | 郑州远东耐火材料有限公司 | Pouring cup for production of electro-fused zirconia alumina |
| CN112846087A (en) * | 2020-12-30 | 2021-05-28 | 宁波金汇精密铸造有限公司 | Filter type pouring cup and sand box |
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Application publication date: 20100804 |