CN201267868Y - Vertical type centrifugal pouring machine for composite roll collar - Google Patents
Vertical type centrifugal pouring machine for composite roll collar Download PDFInfo
- Publication number
- CN201267868Y CN201267868Y CNU2008201408709U CN200820140870U CN201267868Y CN 201267868 Y CN201267868 Y CN 201267868Y CN U2008201408709 U CNU2008201408709 U CN U2008201408709U CN 200820140870 U CN200820140870 U CN 200820140870U CN 201267868 Y CN201267868 Y CN 201267868Y
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- vertical
- composite ring
- composite roll
- mould
- casting machine
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Abstract
A vertical centrifugal composite roll casting machine belongs to a device for pouring composite roll collar product by a centrifugal mode. A die formed by an upper mold, a cold mold and a lower mold is fixedly arranged inside a revolving drum; the revolving drum is vertically fixed on a vertical shaft; the vertical shaft is arranged on the framework through a bearing; a motor is connected with the vertical shaft through a belt transmission mechanism; a pouring supply pipe is arranged on a revolving drum cover plate along the axes of a revolving drum; and the lower part of the supply pipe is provided with an injection hole. Poured by the centrifugal mode, the composite roll collar processed by the device has the advantages of high strength of the junction boundary and long service life.
Description
Technical field
The utility model relates to the liquid alloy casting machine, particularly relates to a kind of a kind of equipment with vertical centrifugal method cast composite ring (composite roll and other revolving meber) product.
Background technology
Collars (and roll) is the essential product commonly used during steel and iron industry is produced, and its quality quality directly influences the quality and the output of steel products.
Along with the iron and steel production technology constantly develops, mill speed and automaticity improve constantly, and be more and more stricter to the quality requirement of stocking product.Require the collars (and roll) of rolled steel that high wearability, intensity and toughness are arranged.Especially in recent years, it is rolling that some heavy section steels adopt composite ring.These large-sized composite ring skins are high-carbon, high alloy cast steel, and are wear-resisting to improve, and internal layer is the high low-carbon (LC) half steel of toughness or stone dimension improving toughness, and discharges rolling stress, guarantees the safe in utilization of large-scale collars.
Present large-scale collars adopts static casting, can only be single material, can't make the composite ring according to each performance requirement of collars.So the outer rolling stress that bears when internal layer transmits since inside and outside be same hardness material, can't absorb and discharge powerful rolling stress, make large-scale collars in rolling process, be easy to the inefficacy of breaking therefrom.。
The utility model content
The purpose of this utility model provides the high vertical centrifugal composite ring casting machine of a kind of composite ring combination interface intensity.
This novel purpose is achieved in that a kind of vertical centrifugal composite ring casting machine, comprises the mould of being made up of mo(u)ld top half, cold mould and mo(u)ld bottom half, and mould is arranged in the rotating cylinder regularly; Rotating cylinder vertically is fixed on the vertical pivot, and vertical pivot is arranged on the body through bearing, and motor is connected with vertical pivot through belt gear, and the cast feed pipe is arranged on the rotating cylinder cover plate along tube rotaring axis, and this feed pipe bottom is provided with hand-hole.
Characteristics of the present utility model and advantage are:
1, collars alloy composite bed combination interface intensity height, the quality of collars is improved
Composite ring outer, in, interior (or core) continuously pouring into a mould in the operation process, technological parameters such as blanking time control degree between each layer cast is higher, make the thickness data of compound transition zone between each layer thickness and each layer accurate, each binder course interface is all in running up, with combination under the powerful centrifugal action condition, rotate the interface accumulated slag simultaneously and wash away down at centrifugal force, inwardly one deck rotation free interface shifts rapidly again, makes each combination interface intensity height.Particularly the composite casting adaptability of steel alloy, alloy half steel, alloy graphitic steel, Gao Luogang, high-speed steel material is good especially to various alloy cast iron joint products.
2, adopt vibration reducing measure to subdue the vibration that unbalanced factor brings
Composite ring (and composite roll) feature of pouring is: for collars, under the situation of equal gravitation multiple, it is low to water outer rotating speed, and the middle level, particularly the internal layer rotating speed is more and more higher, because each layer pours into successively, running load continues to increase, and makes the burden of centrifugation apparatus, compare with centrifugal compound roll, after skin watered, the core weight of dashing of roll nearly 2/3rds was to pour into a mould under the reduction of speed condition, and the centrifuge burden is light.So in design, can adopt vibration damping to improve the reliability of equipment.In addition, in actual production, machinery in device fabrication can guarantee as possible that mass deviation is reduced to the minimum zone, Mould Machining in the production, in all too many levels such as the distortion of mold hot effect, moulding, coating, mould assembling, following machine clamping, it is inevitable causing mass unbalance.Can adopt the even damping of multiple spot, the on-stream vibration amplitude of mass deviation is controlled to more among a small circle.
The powerful centrifugal impulsive force of the on-stream production cycle property of mass unbalance, damping unit is difficult to bear, and the present invention establishes buffer unit in damping, subdue its powerful centrifugal impulsive force, arrives normal range (NR) with the control vibration amplitude.
3, this equipment is in watering composite ring, and high speed rotational time ratio waters long several times of centrifugal compound roll, and the present invention is designed to thin oil circulation cooling and lubricated for guaranteeing bearing operation safety, keeps maintainability under the high ambient conditions.
4, running gate system aligned perpendicular rotation of the present invention, the alloy that waters drop to after the homogenizing of casting mold bottom earlier and borrow centrifugal force to throw to each position of casting mold, can eliminate to occur uneven ring-band shape histological difference on the strand.
Description of drawings
Fig. 1 is a structure chart of the present utility model.
The specific embodiment
Fig. 1 illustrates, and mould 4 is made up of mo(u)ld top half, cold mould and mo(u)ld bottom half, and mould 4 is arranged in the rotating cylinder 5 regularly, rotates synchronously with rotating cylinder; Rotating cylinder vertically is fixed on the vertical pivot 5a, vertical pivot is arranged on the body 6 rotationally through bearing, motor 7 is connected (being the transmission vertical pivot) through belt gear with vertical pivot 5a, cast feed pipe 1 is arranged on the rotating cylinder cover plate 2 along tube rotaring axis, and this feed pipe bottom is provided with hand-hole 1a.The angle of hand-hole 1a and tube rotaring axis greater than 0 ° less than 90 °.The angle of hand-hole 1a and tube rotaring axis is 45 °.Rotating cylinder 5 belows are provided with body 6, and body is provided with the lubricating oil pipeline that is used for the bearing of vertical pivot 5a is risen lubricated cooling effect.The upper bottom surface of composite ring 3, bottom surface contact with molding sand among the figure, and its side contacts with the cold mould of mould; Motor 7 is installed on the motor basis 8, and body 6 is installed on the basis 9.
Rotation is perpendicular to ground during the work of vertical centrifugal composite ring casting machine, liquid alloy injects rotation at a high speed along vertical rotating shaft line center casting mold goes, for composite ring, each position performance demands difference when working according to collars, it is made up of two-layer or two-layer above alloy-layer material of different nature, for the serviceability requirement, must reach " metallurgical binding " intensity between each laminated gold, promptly the bond strength between each layer must be greater than or equal to the intensity of the single material on binder course both sides.This vertical centrifugal composite ring casting machine just in time can satisfy the requirement of composite ring manufacturing process, waters to outpour the product that meets this performance.The casting machine end face is provided with cover plate; the cover plate center has circular hole; the vertical pivot of centrally aligned casting machine in its hole; apparatus for pouring is installed in the circular hole,, is calculated the weight of corresponding rotating speeds and required cast alloy material according to composite ring product size size; when the centrifuge running speed reaches requirement; pour into a mould each laminated gold, simultaneously pour into covering slag, the high temperature alloy that is exposed to the rotation scope of freedom is protected and oxidation does not take place with stream.Solidify situation (thermometric or the control of other method) according to liquid alloy in the type, when solidifying well, pour into next laminated gold in last laminated Nintaus; after treating that last laminated gold has solidified; the block mold that shutdown will be watered hangs out outside the machine, and the insulation slow cooling can hang in next casting mold again to adorn in the machine and close cast.
Vertical centrifugal composite ring casting machine design main points are: equipment turns round around vertical axis; the skin of composite ring, centre (or transition zone), internal layer (or core) all pour in the high-speed and continuous operation process; every layer boundary all is combinations of carrying out two-layer alloy under powerful centrifugal action; simultaneously; the covering slag of light specific gravity be rotated the flushing of alloy liquid very easy again under centrifugal action an inside bed boundary assemble and protect its interface, guarantee the bond strength at each interface.
This equipment is convenient to make alloy liquid to inject the casting mold bottom along the vertical rotating shaft line, and the cold mould of evenly throwing to composite ring then gets on, and avoids flinging the annular performance difference band of the product that the cold mould face causes.
The design lubricating oil pipeline, use thin oil lubricant and each strong stressed bearing of circulation cooling, and,, equipment is turned round steadily in process of production to offset the judder that imbalance was caused that is brought in factors such as manufacturing, moulding, clampings with even damping of multiple spot and vibration damping.
The rotational gravity multiple G value that the tensile strength of this equipment operation parts material and running are born should satisfy following numerical value and require:
G≤(1.5～2)б
b。
This equipment operating characteristic is: skin, middle level (or transition zone), internal layer (or core) carry out pouring operation for turning round continuously, and its processing step is:
(1) will assemble machine clamping under the casting mold, and cover cover plate, the cover plate center hole at the cover central hole place, is put running gate system over against pivot over against the centrifuge rotational line.
(2) outer, middle level (or transition zone, can omit and directly water internal layer), internal layer (or towards core) material are smelted respectively, and are ready to covering slag.
(3) according to the concrete size of watering product, calculate the required rotating speed of each layer (rev/min) and poured weights, then beyond, in, interior order pours into a mould.Wait to rotate free inner surface after skin waters when solidifying equivalent concentration, begin to water the middle level, reduce to setting temperature by this rotation scope of freedom, middle level temperature and begin to water internal layer (or towards core cast).
(4) treat that the collars internal layer has solidified or behind core, shutdown hangs out the machine hole with casting mold, put control cooling in the holding pit.
Next cover casting mold that (5) will newly make up hangs in machine hole clamping, with this cycle operation.
Claims (4)
1, a kind of vertical centrifugal composite ring casting machine comprises, the mould (4) by mo(u)ld top half, cold mould and mo(u)ld bottom half are formed is characterized in that: described mould (4) is arranged in the rotating cylinder (5) regularly; Rotating cylinder vertically is fixed on the vertical pivot (5a), vertical pivot is arranged on the body (6) through bearing, motor (7) is connected with vertical pivot (5a) through belt gear, and cast feed pipe (1) is arranged on the rotating cylinder cover plate (2) along tube rotaring axis, and this feed pipe bottom is provided with hand-hole (1a).
2, according to the described vertical centrifugal composite ring of claim 1 casting machine, it is characterized in that: the angle of described hand-hole (1a) and tube rotaring axis greater than 0 ° less than 90 °.
3, according to the described vertical centrifugal composite ring of claim 2 casting machine, it is characterized in that: described hand-hole (1a) is 45 ° with the angle of tube rotaring axis.
4, according to claim 1 or 2 or 3 described vertical centrifugal composite ring casting machines, it is characterized in that: described body (6) is provided with the lubricating oil pipeline that is used for the bearing of vertical pivot (5a) is risen lubricated cooling effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201408709U CN201267868Y (en) | 2008-10-21 | 2008-10-21 | Vertical type centrifugal pouring machine for composite roll collar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201408709U CN201267868Y (en) | 2008-10-21 | 2008-10-21 | Vertical type centrifugal pouring machine for composite roll collar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201267868Y true CN201267868Y (en) | 2009-07-08 |
Family
ID=40840446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201408709U Expired - Fee Related CN201267868Y (en) | 2008-10-21 | 2008-10-21 | Vertical type centrifugal pouring machine for composite roll collar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201267868Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109559597A (en) * | 2019-01-10 | 2019-04-02 | 河南工程学院 | A kind of vertical centrifugal paraffin casting machine |
-
2008
- 2008-10-21 CN CNU2008201408709U patent/CN201267868Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109559597A (en) * | 2019-01-10 | 2019-04-02 | 河南工程学院 | A kind of vertical centrifugal paraffin casting machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090708 Termination date: 20091123 |