CN110170621A - A kind of high nodulizing rate High Strength Hydraulic motor body shell rough-cast technique - Google Patents
A kind of high nodulizing rate High Strength Hydraulic motor body shell rough-cast technique Download PDFInfo
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- CN110170621A CN110170621A CN201910606698.4A CN201910606698A CN110170621A CN 110170621 A CN110170621 A CN 110170621A CN 201910606698 A CN201910606698 A CN 201910606698A CN 110170621 A CN110170621 A CN 110170621A
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- block
- molten iron
- vermiculizer
- rotating
- ladle
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D1/00—Treatment of fused masses in the ladle or the supply runners before casting
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
- C21C1/00—Refining of pig-iron; Cast iron
- C21C1/10—Making spheroidal graphite cast-iron
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/10—Reduction of greenhouse gas [GHG] emissions
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention belongs to motor casting technology field, specifically a kind of high nodulizing rate High Strength Hydraulic motor body shell rough-cast technique, including compacted makeup are set, and the compacted makeup sets including rotating bar, rotating block, interrupter and breaks up mechanism；The rotating bar is located in ladle, and the lower end of rotating bar is equipped with interrupter, and the upper end of rotating bar is fixedly connected with rotating block, and the middle part of rotating bar, which is equipped with, breaks up mechanism；The rotating block is located at the upper inside of ladle；The interrupter includes mounting ring, connecting rod, movable block and link block；The installation ring outer surface is fixedly connected with connecting rod；Present invention is mainly used for solve at present in casting technique, generally use pour method production vermicular cast iron when, meeting is so that relative impact occurs for molten iron and vermiculizer, so as to cause vermiculizer not in bottom detonation or detonation too early, and then molten iron is reduced to the absorptivity of vermiculizer, cause compactedization occur bad thus the problem of influencing the tensile strength and hardness of hydraulic motor body shell.
Description
Technical field
The invention belongs to motor casting technology field, specifically a kind of high nodulizing rate High Strength Hydraulic motor body shell hair
Base casting technique.
Background technique
Vermiculizer is incorporated into iron liquid to obtain the additive with quasiflake graphite tissue, be widely used at present containing
The composite alloy vermiculizer of multiple element.There are commonly the alloys such as rare earth-silicon-calcium, rare-earth and Mg-titanium, rare-earth and Mg, have excellent
The vermicular cast iron of comprehensive performance is just to obtain after alterant additional amount is more than a certain critical point, and can only stablize one
In a not wide range.This alterant it be referred to as vermiculizer.Correctly selecting vermiculizer and grasping additional amount is steady production
The most important condition of vermicular cast iron, and the additional amount of vermiculizer should according to its chemical composition, molten iron state and cooling condition etc. because
Usually determined, in the production of vermicular cast iron, compactedization be bad and vermiculation is the problem of often meeting, it is bad to compactedization with
The quality of vermiculation control will directly influence the vermiculation effect of casting, and the immediate cause of the bad generation of compactedization be molten iron and
Impact is generated when vermiculizer combines not detonate in bottom so as to cause vermiculizer, nodulizing rate is reduced, to influence hydraulic motor body
The casting tensile strength and hardness of shell.
Summary of the invention
In order to make up for the deficiencies of the prior art, a kind of high nodulizing rate High Strength Hydraulic motor body shell blank proposed by the present invention
Casting technique.Present invention is mainly used for solutions in casting technique, when using pouring method production vermicular cast iron, existing compacted ink casting
Iron can make molten iron and vermiculizer that relative impact occur, and not detonate in bottom so as to cause vermiculizer, reduce molten iron to vermiculizer
Absorptivity, the problem of causing to occur compactedization bad casting tensile strength and hardness to influence hydraulic motor body shell.
The technical solution adopted by the present invention to solve the technical problems is: a kind of high nodulizing rate of the present invention is high-intensitive
Hydraulic motor body shell rough-cast technique, the technique the following steps are included:
S1: ready vermiculizer and inovulant being placed in ladle, and are placed on the bottom of ladle, then will be compacted
Makeup is put in ladle, and carries out covering package to vermiculizer and inovulant by the interrupter that lower end is set in compacted makeup；
S2: when in S1 vermiculizer and inovulant be isolated mechanism covering package after, upper end that molten iron is passed through into ladle
It is passed through in ladle, and molten iron is broken up drops down onto the bottom of ladle via the mechanism of breaing up that middle part is set in compacted makeup, and utilize iron
The high temperature of water promotes interrupter to move up, so that molten iron is combined with vermiculizer and inovulant；Described breaing up in mechanism is put
It is equipped with plant ash and iron filings；
S3: after the molten iron in S2 starts to combine with vermiculizer and inovulant, interrupter is moved up, and passes through interrupter
In-house plant ash and iron filings can will be broken up by, which moving up, is passed through in vermiculizer and inovulant, improves crust performance；
S4: when in S3 plant ash, iron filings in conjunction with vermiculizer and inovulant after the completion of, take out ladle in compacted makeup
It sets, and the molten iron after the completion of compactedization is poured into the casting mould of preprepared hydraulic motor body shell and cast；
Wherein, compacted makeup used in S1 and S2 sets including rotating bar, rotating block, interrupter and breaks up mechanism；Institute
It states rotating bar to be located in ladle, the lower end of rotating bar is equipped with interrupter, and the upper end of rotating bar is fixedly connected with rotating block, turns
The middle part of lever is equipped with and breaks up mechanism；The rotating block is located at the upper inside of ladle in cone, rotating block；The isolation
Mechanism includes mounting ring, connecting rod, movable block and link block；The mounting ring is fixedly mounted on the lower end outer surface of rotating bar,
The outer surface of mounting ring, which uniformly slides up and down, is connected with connecting rod；The outer end of the connecting rod is connected with movable block；The movement
The cross section of block is L-shaped, and movable block is made of high-strength light high-temperature resistant composite material, offers water inside the lower end of movable block
Chamber passes through link block between movable block and connects；The link block is made of soft alloy, and link block is arc-shaped；In the water cavity
Filled with water, water cavity and movable block upper end connects with the internal cavities；Methane gas is filled in the cavity；It is described to break up mechanism packet
Include bracket and oscillating deck；The bracket is in cross, and the inner end outer surface of bracket is connected with oscillating deck, the connection of bracket inner ends thereof
In the upper end outer surface of rotating bar；The upper end length of the oscillating deck is smaller than lower end；When needing to carry out compactedization to molten iron
Vermiculizer and inovulant are put into ladle, and compacted makeup is put in ladle, because rotating bar lower end passes through mounting ring
It is fixedly connected with connecting rod, connecting rod outer end is connected with movable block, connects between movable block by link block, so working as compacted makeup
Its movable block and link block can wrap up vermiculizer and inovulant covering when putting in ladle, when molten iron passes through in ladle
When end is passed through in ladle, because rotating bar upper end is fixedly connected with rotating block, rotating block is tapered, so molten iron enters ladle
First it can contact with rotating block and be evenly dispersed via it to rotating block lower end when interior, and is uniform via the oscillating deck of its lower end
The lower end wall for diffusing to ladle flows upwardly to ladle bottom, and when molten iron is contacted with movable block, the high temperature of molten iron can be to movement
The water of water cavity is heated inside block, i.e., is evaporated to it, i.e., vapor can be passed through in the cavity of movable block upper end and in it
The concurrent biochemical reaction generation hydrogen of methane gas contact, when the amount of hydrogen reaches a certain level, movable block can be in hydrogen
Buoyancy and water buoyancy double action under shift upwards, and during movable block moves upwards, molten iron will uniformly flow to shifting
It is contacted below motion block and with vermiculizer and inovulant, so that vermiculizer detonates in molten iron bottom, avoids vermiculizer not at molten iron bottom
Portion's detonation influences compactedization efficiency.
The upper surface of the rotating block is uniformly fixedly installed with deflector；The deflector is inclined to set；The movement
The outer surface of block is fixedly installed with stir plate；When molten iron flow to rotating block upper surface, because the upper surface because of rotating block is uniformly solid
Dingan County is equipped with deflector, and deflector is inclined to set, so molten iron impact can make when on rotating block because of the presence of deflector
Rotating block rotates so that molten iron is scattered more uniform, and drives rotating bar to rotate simultaneously, because of rotating bar lower end outside
Surface is fixedly installed with mounting ring, and the outer end of mounting ring is connected with movable block by connecting rod, passes through link block between movable block
Connection so rotating block will drive movable block and link block rotation when rotating, and is stirred because the outer surface of movable block is fixedly installed with
Movable plate, i.e., the stir plate that will drive its outer surface when movable block rotates stirs molten iron, so that movable block moves up
When molten iron is threaded into movable block, avoid molten iron horizontal impact make on vermiculizer vermiculizer can not bottom rise
It is quick-fried.
The lower end outer surface of the rotating bar is fixedly connected with agitation block；The agitation block is tapered；When rotating bar is turned
When motion block drives, because the lower end outer surface of rotating bar is fixedly connected with agitation block, so can be by stirring in rotating bar rotation
Motion block stirs vermiculizer and inovulant, so that vermiculizer and inovulant are sufficiently mixed, and when molten iron is passed through to mixing
Molten iron is stirred, so that molten iron and vermiculizer are sufficiently mixed, greatly improves compactedization efficiency.
The mechanism of breaing up further includes rotating disc, sliding chamber and slide bar；The outer end in contact of the slide bar is located under oscillating deck
Inner surface is held, the inner end of slide bar is slidably connected in the cunning chamber in rotating disc；The rotating disc is fixedly mounted in rotating bar
Portion outer surface；The upper end of the oscillating deck is hinged on the inner end of bracket；When rotating bar rotation, because of the center outer surface of rotating bar
It is fixedly installed with rotating disc, the cunning in rotating disc is intracavitary to slidably connect slide bar, table in the outer end of slide bar and the lower end of oscillating deck
Face contact, thus rotating bar rotate when will drive slide bar ceaselessly with oscillating deck lower end inner surface intermittent contact, because of oscillating deck
Upper end be hinged on the inner end of bracket, moved back and forth so slide bar rotation can ceaselessly cause oscillating deck lower end to do arc,
To further break up molten iron, so that molten iron uniformly flow to ladle lower end.
The sliding chamber lower end is hinged with rotor plate, and sliding intracavitary full of high pressure gas, sliding chamber lower end is filled with plant ash, sliding chamber
Lower section is equipped with mandril；The mandril is fixedly mounted on the inner end upper surface of connecting rod；When movable block is upward by the effect of hydrogen
When mobile, it is hinged with rotor plate because sliding chamber lower end, sliding intracavitary full of high pressure gas, sliding chamber lower end is filled with plant ash, slides under chamber
Side is equipped with mandril, and mandril is fixedly mounted on the inner end upper surface of connecting rod, moves up so will drive mandril when movable block moves up, and
It is finally contacted with rotor plate, rotor plate is jacked up, lead to it under the expansive force effect of sliding chamber internal high-pressure gas at the same time
Internal plant ash and iron filings is fallen along the indentation, there of rotor plate to be contacted with vermiculizer, to prevent molten iron from contacting with atmosphere and magnesium
The spilling of steam can delay compactedization to react, compactedization and pregnant effect be improved, so that the crust of molten iron greatly improves.
The outer end of the connecting rod is slidably mounted on the inside of movable block；It is when movable block moves up, i.e., empty inside movable block
The hydrogen gas pressure of chamber increases, i.e., generates one extruding force to connecting rod outer end, so as to cause movable block move up Shi Yihui along
Connecting rod is slided toward inner end, to generate one extruding force to link block, so that link block is formed by bending bigger cambered surface, and is stirred
Movable plate cooperates so that the agitation efficiency to molten iron further increases, to further increase merging for molten iron and vermiculizer, simultaneously
Movable block, which contacts when movable block can also be avoided to rise to certain altitude when sliding to contract with oscillating deck, influences oscillating deck
Working efficiency.
Beneficial effects of the present invention are as follows:
1. the present invention by be arranged interrupter can be realized when need to molten iron carry out compactedization when, can by vermiculizer with
Inovulant is put into ladle, and compacted makeup is put in ladle, because rotating bar lower end is fixedly connected with by mounting ring
Connecting rod, connecting rod outer end are connected with movable block, are connected between movable block by link block, so when compacted makeup is put into molten iron
Its movable block and link block can wrap up vermiculizer and inovulant covering when in packet, when molten iron is passed through molten iron by ladle upper end
Packet in when, because rotating bar upper end is fixedly connected with rotating block, rotating block is tapered, thus when molten iron enters in ladle can first with
Rotating block is contacted and is evenly dispersed via it to rotating block lower end, and is uniformly diffused to molten iron via the oscillating deck of its lower end
The lower end wall of packet flows upwardly to ladle bottom, and when molten iron is contacted with movable block, the high temperature of molten iron can be to movable block inside water cavity
Water heated, i.e., it is evaporated, i.e., vapor can be passed through in the cavity of movable block upper end and the methane gas in it
The concurrent biochemical reaction of contact generates hydrogen, can push away with one same-action of buoyancy of molten iron when the amount of hydrogen reaches a certain level
Dynamic movable block moves up, i.e., so that molten iron uniformly flow to movable block inside and contacts with vermiculizer and inovulant, so that vermiculizer is in iron
Water-bed portion's detonation, avoiding vermiculizer from not detonating in molten iron bottom influences compactedization efficiency, so that the motor body cast by molten iron
Shell structure intensity is more preferable.
2. the present invention can be realized by setting deflector and stir plate when molten iron flow to rotating block upper surface, because because turning
The upper surface of motion block is uniformly fixedly installed with deflector, and deflector is inclined to set, so molten iron impact is when on rotating block
Because of the presence of deflector rotating block can be rotated, so that molten iron is scattered more uniform, and drive rotating bar simultaneously
Rotation, because rotating bar lower end outer surface is fixedly installed with mounting ring, the outer end of mounting ring is connected with movable block by connecting rod, moves
It is connected between motion block by link block, so rotating block will drive movable block and link block rotation when rotating, and because of movable block
Outer surface is fixedly installed with stir plate, i.e., the stir plate that will drive its outer surface when movable block rotates stirs molten iron,
So that being threaded into molten iron in movable block when movable block moves up, molten iron horizontal impact is avoided to make on vermiculizer compacted
Agent can not detonate in bottom, cause molten iron the hardness for the motor body shell that molten iron is cast out will not be caused in conjunction with vermiculizer compared with
It is big to influence.
3. the present invention by setting agitation block can be realized when rotating bar be rotated block drive when, because of the lower end of rotating bar outside
Surface is fixedly connected with agitation block, so can be stirred by stirring block vermiculizer and inovulant in rotating bar rotation
It is dynamic, so that vermiculizer and inovulant are sufficiently mixed, and stir mixing molten iron when molten iron is passed through, so that molten iron and compactedization
Agent is sufficiently mixed, and greatly improves compactedization efficiency, while greatly improving the tensile strength and hardness of the body shell cast out by molten iron.
Detailed description of the invention
Fig. 1 is main view of the invention；
Fig. 2 is the top view of interrupter of the present invention；
Fig. 3 is the top view of rotating block of the present invention；
Fig. 4 is the partial enlarged view in Fig. 1 of the present invention at A；
Fig. 5 is the partial enlarged view in Fig. 1 of the present invention at B；
Fig. 6 is sample metallographic structure figure in each experiment of the embodiment of the present invention；
In figure: rotating bar 1 stirs block 11, rotating block 2, deflector 21, interrupter 3, mounting ring 31, connecting rod 32, shifting
Motion block 33, stir plate 331, link block 34, water cavity 35, cavity 36 break up mechanism 4, bracket 41, oscillating deck 42, rotating disc 43, cunning
Chamber 44, slide bar 45, rotor plate 46, mandril 47.
Specific embodiment
Using Fig. 1-Fig. 5 to a kind of high nodulizing rate High Strength Hydraulic motor body shell rough-cast of an embodiment of the present invention
Technique carries out as described below.
As Figure 1-Figure 5, a kind of high nodulizing rate High Strength Hydraulic motor body shell rough-cast technique of the present invention,
The technique the following steps are included:
S1: ready vermiculizer and inovulant being placed in ladle, and are placed on the bottom of ladle, then will be compacted
Makeup is put in ladle, and carries out covering package to vermiculizer and inovulant by the interrupter that lower end is set in compacted makeup；
S2: when in S1 vermiculizer and inovulant be isolated mechanism covering package after, upper end that molten iron is passed through into ladle
It is passed through in ladle, and molten iron is broken up drops down onto the bottom of ladle via the mechanism of breaing up that middle part is set in compacted makeup, and utilize iron
The high temperature of water promotes interrupter to move up, so that molten iron is combined with vermiculizer and inovulant；Described breaing up in mechanism is put
It is equipped with plant ash and iron filings；
S3: after the molten iron in S2 starts to combine with vermiculizer and inovulant, interrupter is moved up, and passes through interrupter
In-house plant ash and iron filings can will be broken up by, which moving up, is passed through in vermiculizer and inovulant, improves crust performance；
S4: when in S3 plant ash, iron filings in conjunction with vermiculizer and inovulant after the completion of, take out ladle in compacted makeup
It sets, and the molten iron after the completion of compactedization is poured into the casting mould of preprepared hydraulic motor body shell and cast；
Wherein, compacted makeup used in S1 and S2 sets including rotating bar 1, rotating block 2, interrupter 3 and breaks up mechanism
4；The rotating bar 1 is located in ladle, and the lower end of rotating bar 1 is equipped with interrupter 3, and the upper end of rotating bar 1 is fixedly connected with
Rotating block 2, the middle part of rotating bar 1, which is equipped with, breaks up mechanism 4；The rotating block 2 is located at the interior of ladle in cone, rotating block 2
On the upside of portion；The interrupter 3 includes mounting ring 31, connecting rod 32, movable block 33 and link block 34；The mounting ring 31 is fixed
It is mounted on the lower end outer surface of rotating bar 1, the outer surface of mounting ring 31, which uniformly slides up and down, is connected with connecting rod 32；The connection
The outer end of bar 32 is connected with movable block 33；The cross section of the movable block 33 is L-shaped, and movable block 33 is resistant to high temperature by high-strength light
Composite material is made, and water cavity 35 is offered inside the lower end of movable block 33, is connected between movable block 33 by link block 34；It is described
Link block 34 is made of soft alloy, and link block 34 is arc-shaped；Water is filled in the water cavity 35, on water cavity 35 and movable block 33
Internal cavities 36 are held to be connected to；Methane gas is filled in the cavity 36；The mechanism 4 of breaing up includes bracket 41 and oscillating deck
42；The bracket 41 is in cross, and the inner end outer surface of bracket 41 is connected with oscillating deck 42, and 41 inner ends thereof of bracket, which is connected to, to be turned
The upper end outer surface of lever 1；The upper end length of the oscillating deck 42 is smaller than lower end；When needing to carry out compactedization to molten iron
Vermiculizer and inovulant are put into ladle, and compacted makeup is put in ladle, because 1 lower end of rotating bar passes through mounting ring
31 are fixedly connected with connecting rod 32, and 32 outer end of connecting rod is connected with movable block 33, is connected between movable block 33 by link block 34,
So its movable block 33 and link block 34 can wrap up vermiculizer and inovulant covering when compacted makeup is put in ladle, when
When molten iron is passed through in ladle by ladle upper end, because 1 upper end of rotating bar is fixedly connected with rotating block 2, rotating block 2 is in cone
Shape, so first can contact with rotating block 2 and be evenly dispersed via it to 2 lower end of rotating block when molten iron enters in ladle, and
Ladle bottom is flowed upwardly to via the lower end wall that the oscillating deck 42 of its lower end is uniformly diffused to ladle, when molten iron and movable block
When 33 contact, the high temperature of molten iron can heat the water of 33 inside water cavity 35 of movable block, i.e., be evaporated to it, i.e. vapor
It can be passed through in the cavity 36 of 33 upper end of movable block and contact concurrent biochemical reaction generation hydrogen with the methane gas in it, work as hydrogen
Amount when reaching a certain level, movable block 33 can move up under the buoyancy double action of the buoyancy and water of hydrogen, and move
During block 33 moves upwards, molten iron will uniformly flow to 33 lower section of movable block and contact with vermiculizer and inovulant, so that compacted
Agent is detonated in molten iron bottom, and avoiding vermiculizer from not detonating in molten iron bottom influences compactedization efficiency.
The upper surface of the rotating block 2 is uniformly fixedly installed with deflector 21；The deflector 21 is inclined to set；It is described
The outer surface of movable block 33 is fixedly installed with stir plate 331；When molten iron flow to 2 upper surface of rotating block, because upper because of rotating block 2
Surface is uniformly fixedly installed with deflector 21, and deflector 21 is inclined to set, so molten iron impact can be because when on rotating block 2
The presence of deflector 21 makes rotating block 2 rotate, so that molten iron is scattered more uniform, and drives rotating bar 1 simultaneously
Rotation, because 1 lower end outer surface of rotating bar is fixedly installed with mounting ring 31, the outer end of mounting ring 31 is connected with shifting by connecting rod 32
Motion block 33 is connected by link block 34 between movable block 33, so rotating block 2 will drive movable block 33 and link block 34 when rotating
Rotation, and because the outer surface of movable block 33 is fixedly installed with stir plate 331, i.e., it will drive its outer surface when movable block 33 rotates
Stir plate 331 molten iron is stirred so that movable block 33 is threaded into molten iron in movable block 33, keep away
Exempt from molten iron horizontal impact makes vermiculizer that can not detonate in bottom on vermiculizer.
The lower end outer surface of the rotating bar 1 is fixedly connected with agitation block 11；The agitation block 11 is tapered；Work as rotating bar
1 be rotated block 2 drive when, because the lower end outer surface of rotating bar 1 be fixedly connected with agitation block 11, so rotating bar 1 rotate when
Vermiculizer and inovulant can be stirred by stirring block 11, so that vermiculizer and inovulant are sufficiently mixed, and in molten iron
Mixing molten iron is stirred when being passed through, so that molten iron and vermiculizer are sufficiently mixed, greatly improves compactedization efficiency.
The mechanism 4 of breaing up further includes rotating disc 43, sliding chamber 44 and slide bar 45；The outer end in contact of the slide bar 45 is located at pendulum
The lower end inner surface of movable plate 42, the inner end of slide bar 45 are slidably connected in the cunning chamber 44 in rotating disc 43；The rotating disc 43 is solid
Dingan County is mounted in the center outer surface of rotating bar 1；The upper end of the oscillating deck 42 is hinged on the inner end of bracket 41；When 1 turn of rotating bar
When dynamic, because the center outer surface of rotating bar 1 is fixedly installed with rotating disc 43, cunning is slidably connected in the cunning chamber 44 in rotating disc 43
Bar 45, the outer end of slide bar 45 are contacted with the lower end inner surface of oscillating deck 42, are not stopped so rotating bar 1 will drive slide bar 45 when rotating
With 42 lower end inner surface intermittent contact of oscillating deck, because the upper end of oscillating deck 42 is hinged on the inner end of bracket 41, so slide bar
45 rotations can ceaselessly cause 42 lower end of oscillating deck to do arc to move back and forth, to molten iron further be broken up, so that iron
Water uniformly flow to ladle lower end.
44 lower end of sliding chamber is hinged with rotor plate 46, high pressure gas is full of in sliding chamber 44, sliding 44 lower end of chamber is filled with grass
Wood ash is slided and is equipped with mandril 47 below chamber 44；The mandril 47 is fixedly mounted on the inner end upper surface of connecting rod 32；When movable block 33
When effect by hydrogen moves up, because sliding 44 lower end of chamber is hinged with rotor plate 46, high pressure gas, sliding chamber are full of in sliding chamber 44
44 lower ends are filled with plant ash, are equipped with mandril 47 below sliding chamber 44, and mandril 47 is fixedly mounted on the inner end upper surface of connecting rod 32,
So movable block 33 will drive mandril 47 and move up when moving up, and finally contacted with rotor plate 46, rotor plate 46 is jacked up, it is same with this
When lead to plant ash and iron filings lacking along rotor plate 46 inside it under the expansive force effect of sliding 44 internal high-pressure gas of chamber
It falls at mouthful and is contacted with vermiculizer, to prevent molten iron from contacting with atmosphere and the spilling of magnesium vapor, compactedization can be delayed to react, improved
Compactedization and pregnant effect, so that the crust of molten iron greatly improves.
The outer end of the connecting rod 32 is slidably mounted on the inside of movable block 33；When movable block 33 moves up, i.e. movable block
The hydrogen gas pressure of 33 internal cavities 36 increases, i.e., generates one extruding force to 32 outer end of connecting rod, exist so as to cause movable block 33
It moves up Shi Yihui and is slided along connecting rod 32 toward inner end, so that one extruding force is generated to link block 34, so that link block 34 is curved
The cambered surface of curved Cheng Geng great cooperates with stir plate 331 so that the agitation efficiency to molten iron further increases, to further increase
Molten iron is merged with vermiculizer, at the same movable block 33 to contract slide when movable block 33 can also be avoided to rise to certain altitude
When contacted with oscillating deck 42 influence oscillating deck 42 working efficiency.
The specific workflow that the compacted makeup is set is as follows:
Want to produce the hydraulic motor body shell blank of high nodulizing rate high intensity, it is necessary to the molten iron of output high quality；At this point,
It needs to set by the compacted makeup and compactedization is carried out to molten iron, it may be assumed that
Preprepared certain ingredients vermiculizer and inovulant are put into ladle, and compacted makeup is put into molten iron
In packet, because 1 lower end of rotating bar is fixedly connected with connecting rod 32 by mounting ring 31,32 outer end of connecting rod is connected with movable block 33,
It is connected between movable block 33 by link block 34, so its movable block 33 and link block 34 when compacted makeup is put in ladle
It can be by vermiculizer and inovulant covering package, when molten iron is passed through in ladle by ladle upper end, because 1 upper end of rotating bar is solid
Surely it is connected with rotating block 2, rotating block 2 is tapered, so can first contact with rotating block 2 and via it when molten iron enters in ladle
It is evenly dispersed to 2 lower end of rotating block, and upper via the lower end wall that the oscillating deck of its lower end 42 is uniformly diffused to ladle
To ladle bottom, when molten iron is contacted with movable block 33, the high temperature of molten iron can carry out the water of 33 inside water cavity 35 of movable block
Heating, i.e., be evaporated it, i.e., vapor can be passed through in the cavity 36 of 33 upper end of movable block and contact with the methane gas in it
Concurrent biochemical reaction generates hydrogen, will push movable block 33 when the amount of hydrogen reaches a certain level and moves up, i.e., so that molten iron
It uniformly flow to 33 inside of movable block to contact with vermiculizer and inovulant, so that vermiculizer detonates in molten iron bottom, avoids vermiculizer
Not detonating in molten iron bottom influences compactedization efficiency.
When molten iron flow to 2 upper surface of rotating block, because the upper surface of rotating block 2 is uniformly fixedly installed with deflector 21, and
Deflector 21 is inclined to set, so molten iron impact when on rotating block 2, can make rotating block 2 send out because of the presence of deflector 21
Raw rotation, so that molten iron is under rotating block rotary action, it is scattered more uniform, and rotating bar 1 is driven to rotate simultaneously, because turning
1 lower end outer surface of lever is fixedly installed with mounting ring 31, and the outer end of mounting ring 31 is connected with movable block 33 by connecting rod 32, moves
It is connected between motion block 33 by link block 34, so rotating block 2 will drive movable block 33 when rotating and link block 34 rotates, and because
The outer surface of movable block 33 is fixedly installed with stir plate 331, i.e., will drive the stir plate of its outer surface when movable block 33 rotates
331 pairs of molten iron stir, so that movable block 33 is threaded into molten iron in movable block 33, avoid molten iron water
Flat impact makes vermiculizer that can not detonate in bottom on vermiculizer.
When rotating bar 1, which is rotated block 2, to be driven, because the lower end outer surface of rotating bar 1 is fixedly connected with agitation block 11, so
Vermiculizer and inovulant can be stirred by stirring block 11 when rotating bar 1 rotates, so that vermiculizer and inovulant fill
Divide mixing, and mixing molten iron is stirred when molten iron is passed through, so that molten iron and vermiculizer are sufficiently mixed, greatly improves compactedization
Efficiency, when rotating bar 1 rotates, because the center outer surface of rotating bar 1 is fixedly installed with rotating disc 43, the cunning chamber in rotating disc 43
Slide bar 45 is slidably connected in 44, the outer end of slide bar 45 is contacted with the lower end inner surface of oscillating deck 42, so when rotating bar 1 rotates
Will drive slide bar 45 ceaselessly with 42 lower end inner surface intermittent contact of oscillating deck, because the upper end of oscillating deck 42 is hinged on bracket 41
Inner end, so the rotation of slide bar 45 can ceaselessly cause 42 lower end of oscillating deck to do arc to move back and forth, thus by molten iron into
One step is broken up, so that molten iron uniformly flow to ladle lower end.
When movable block 33 is moved up by the effect of hydrogen and molten iron buoyancy, because sliding 44 lower end of chamber is hinged with rotor plate
46, it slides and is full of high pressure gas in chamber 44, sliding 44 lower end of chamber is filled with plant ash, slides and is equipped with mandril 47 below chamber 44, and mandril 47 is solid
Dingan County is mounted in the inner end upper surface of connecting rod 32, so movable block 33 will drive mandril 47 and move up when moving up, and finally with rotation
Plate 46 contacts, and rotor plate 46 is jacked up, and causes inside it under the expansive force effect of sliding 44 internal high-pressure gas of chamber at the same time
Plant ash and iron filings fall along the indentation, there of rotor plate 46 and contacted with vermiculizer, with prevent molten iron from contacting with atmosphere and magnesium steam
The spilling of gas can delay compactedization to react, compactedization and pregnant effect be improved, so that the crust of molten iron greatly improves.
When movable block 33 moves up, i.e., the hydrogen gas pressure of 33 internal cavities 36 of movable block increases, i.e., to 32 outer end of connecting rod
One extruding force is generated, is moving up Shi Yihui along connecting rod 32 toward inner end sliding, thus to connection so as to cause movable block 33
Block 34 generates one extruding force, so that link block 34 is formed by bending bigger cambered surface, cooperates with stir plate 331 so as to molten iron
Agitation efficiency further increases, to further increase merging for molten iron and vermiculizer, while movable block 33 is slided to contract
When can also avoid movable block 33 contacted when rising to certain altitude with oscillating deck 42 influence oscillating deck 42 working efficiency.
By it is above-mentioned it is compacted disguise the course of work set, can be realized the raising to molten iron comprehensive performance, then by by high property
The molten iron of energy pours into the casting mould of preprepared hydraulic motor body shell, to realize the hydraulic motor body cast out
High compactedization and high intensity of shell performance.
Specific experiment:
For the performance for verifying the hydraulic motor body shell that the application is cast out, the application related personnel has carried out following control group
To the test operation of experimental group:
Each substance group number for the hydraulic motor body shell that table 1- is prepared with the application aforesaid way
Above-mentioned each test situation is as follows:
1, experimental condition: while 4 groups of molten iron are taken, every group of molten iron quantity is in terms of 100 parts:
In control group 1, in 100 parts of molten iron, use is general in the prior art to pour method processing casting iron technology, adds
Enter 0.4 part of vermiculizer and 2 parts of inovulants, then the molten iron that ingredient has been mixed pours into the casting of preprepared hydraulic motor body shell
Casting and forming is carried out in modeling tool；
In control group 2, in 100 parts of molten iron, general Feed aluminum wire handles casting iron technology in the prior art for use, adds
Enter 0.4 part of vermiculizer and 2 parts of inovulants, then the molten iron that ingredient has been mixed pours into the casting of preprepared hydraulic motor body shell
Casting and forming is carried out in modeling tool；
In experimental group 3, in 100 parts of molten iron, method processing casting iron technology is poured using the application, is added 0.4 part
Vermiculizer and 2 parts of inovulants, then the molten iron that ingredient has been mixed pour into preprepared hydraulic motor body shell casting mould
Carry out casting and forming；
In experimental group 4, in 100 parts of molten iron, method processing casting iron technology is poured using the application, is added 0.4 part
Vermiculizer, 2 parts of inovulants and 0.8 part of plant ash, then the molten iron that ingredient has been mixed pour into preprepared hydraulic motor body
Casting and forming is carried out in the casting mould of shell；
Note: in each experiment, ingredient, size of vermiculizer and inovulant etc. are all the same, are same brand and performance
Vermiculizer and inovulant.
2, test format:
From the hydraulic motor body shell blank of casting and forming in above-mentioned each experiment, material sampling is carried out, processes tensile test bar,
Tension test is carried out in Instron Material Testing Machine, loading velocity 1mm/min measures the tensile strength and elongation of material
Rate；
Metallographic specimen is processed from incision position, sample is placed on to 4% nital into grinding and polishing, after polishing
In carry out corrosion 5-10 second, then utilize DMM-440C metallography microscope sem observation sample microstructure；
In tensile sample chuck position workhardness sample, its hardness is measured using HB-3000A Brinell hardness tester.
3, test result: the testing result difference of control group 1, experimental group 2 and experimental group 3 is as follows:
The motor body shell blank related data detected in each experimental result of table 2-
Note: metallographic structure (c), (d) in Figure of description Fig. 6 are compared with (a) and (b), hence it is evident that, it can be seen that (c)
(d) nodulizing rate is significantly improved relative to (a) and (b), and the metallographic structure object after compactedization becomes short and thick, compactedization intensity
Preferably.
The technical staff of the industry it is well known that: in the prior art, using Feed aluminum wire production vermicular cast iron it is compacted
Change effect, tensile strength and material hardness, is often got well than routinely pouring the effect of vermicular cast iron of method production；The conclusion is
Common sense in the field, while can also compare to obtain by the analysis of control group 1 and control group 2 in table 2；
And improved through the invention pour method vermicular cast iron produced, nodulizing rate, tensile strength and material hardness
For the vermicular cast iron of existing Feed aluminum wire production more preferably；The conclusion can be by control group 2 in table 2 and experimental group 3, reality
4 analysis comparison of group is tested to obtain；
The above analysis combination chart is available to draw a conclusion: being produced using the improved method that pours of the application
Motor body shell blank performance, either pour method cast iron processing technique relative to traditional, or rush relative to than tradition
For entering the better Feed aluminum wire cast iron processing technique of method, effect is more preferable, and product quality is more excellent, therefore, the technical side of the application
Case has significant technological progress！
The embodiment of the present invention is described with above attached drawing, but the invention is not limited to above-mentioned specific
Embodiment, the above mentioned embodiment is only schematical, rather than restrictive, those skilled in the art
Under the inspiration of the present invention, without breaking away from the scope protected by the purposes and claims of the present invention, it can also make very much
Form, all of these belong to the protection of the present invention.
Claims (6)
1. a kind of high nodulizing rate High Strength Hydraulic motor body shell rough-cast technique, it is characterised in that: the technique includes following step
It is rapid:
S1: ready vermiculizer and inovulant are placed in ladle, and are placed on the bottom of ladle, then by compacted makeup
It puts in ladle, and covering package is carried out to vermiculizer and inovulant by the interrupter that lower end is set in compacted makeup；
S2: when in S1 vermiculizer and inovulant be isolated mechanism covering package after, molten iron is passed through by the upper end of ladle
In ladle, and molten iron is broken up drops down onto the bottom of ladle via the mechanism of breaing up that middle part is set in compacted makeup, and utilize molten iron
High temperature promotes interrupter to move up, so that molten iron is combined with vermiculizer and inovulant；Described breaing up in mechanism is placed with
Plant ash and iron filings；
S3: after the molten iron in S2 starts to combine with vermiculizer and inovulant, interrupter is moved up, and passes through moving up for interrupter
It can will break up in-house plant ash and iron filings to be passed through in vermiculizer and inovulant, improve crust performance；
S4: when in S3 plant ash, iron filings in conjunction with vermiculizer and inovulant after the completion of, take out ladle in compacted makeup set,
And the molten iron after the completion of compactedization is poured into the casting mould of preprepared hydraulic motor body shell and cast；
Wherein, compacted makeup used in S1 and S2 is set including rotating bar (1), rotating block (2), interrupter (3) and beater
Structure (4)；The rotating bar (1) is located in ladle, and the lower end of rotating bar (1) is equipped with interrupter (3), rotating bar (1) it is upper
End is fixedly connected with rotating block (2), and the middle part of rotating bar (1), which is equipped with, breaks up mechanism (4)；The rotating block (2) turns in cone
Motion block (2) is located at the upper inside of ladle；The interrupter (3) includes mounting ring (31), connecting rod (32), movable block
(33) and link block (34)；The mounting ring (31) is fixedly mounted on the lower end outer surface of rotating bar (1), mounting ring (31) it is outer
Surface, which uniformly slides up and down, is connected with connecting rod (32)；The outer end of the connecting rod (32) is connected with movable block (33)；The shifting
The cross section of motion block (33) is L-shaped, and movable block (33) is made of high-strength light high-temperature resistant composite material, under movable block (33)
End is internal to be offered water cavity (35), is connected between movable block (33) by link block (34)；The link block (34) is by soft gold
Category is made, and link block (34) is arc-shaped；Water, sky inside water cavity (35) and movable block (33) upper end are filled in the water cavity (35)
Chamber (36) connection；Methane gas is filled in the cavity (36)；The mechanism (4) of breaing up includes bracket (41) and oscillating deck
(42)；The bracket (41) is in cross, and the inner end outer surface of bracket (41) is connected with oscillating deck (42), and bracket (41) inner end turns
The dynamic upper end outer surface for being connected to rotating bar (1)；The upper end length of the oscillating deck (42) is smaller than lower end.
2. a kind of high nodulizing rate High Strength Hydraulic motor body shell rough-cast technique according to claim 1, feature exist
In: the upper surface of the rotating block (2) is uniformly fixedly installed with deflector (21)；The deflector (21) is inclined to set；Institute
The outer surface for stating movable block (33) is fixedly installed with stir plate (331).
3. a kind of high nodulizing rate High Strength Hydraulic motor body shell rough-cast technique according to claim 1, feature exist
In: the lower end outer surface of the rotating bar (1) is fixedly connected with agitation block (11)；The agitation block (11) is tapered.
4. a kind of high nodulizing rate High Strength Hydraulic motor body shell rough-cast technique according to claim 1, feature exist
In: the mechanism (4) of breaing up further includes rotating disc (43), sliding chamber (44) and slide bar (45)；The outer end in contact of the slide bar (45)
It is located at the lower end inner surface of oscillating deck (42), the inner end of slide bar (45) is slidably connected in the cunning chamber (44) in rotating disc (43)；
The rotating disc (43) is fixedly mounted on the center outer surface of rotating bar (1)；The upper end of the oscillating deck (42) is hinged on bracket
(41) inner end.
5. a kind of high nodulizing rate High Strength Hydraulic motor body shell rough-cast technique according to claim 4, feature exist
In: sliding chamber (44) lower end is hinged with rotor plate (46), and high pressure gas is full of in sliding chamber (44), and sliding chamber (44) lower end is filled with
Plant ash and iron filings are equipped with mandril (47) below sliding chamber (44)；The mandril (47) is fixedly mounted on the inner end of connecting rod (32)
Upper surface.
6. a kind of high nodulizing rate High Strength Hydraulic motor body shell rough-cast technique according to claim 1, feature exist
In: the outer end of the connecting rod (32) is slidably mounted on the inside of movable block (33).
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110685853A (en) * | 2019-11-19 | 2020-01-14 | 詹建辉 | High-creep-rate high-strength hydraulic motor |
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| WO1991019012A1 (en) * | 1990-05-28 | 1991-12-12 | Ab Volvo | A method of manufacturing compacted graphite cast iron |
| CN103862004A (en) * | 2013-09-06 | 2014-06-18 | 天津市万路科技有限公司 | Molten iron treatment method |
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