CN106513586B - A kind of casting method of In Mine Crusher upper frame - Google Patents
A kind of casting method of In Mine Crusher upper frame Download PDFInfo
- Publication number
- CN106513586B CN106513586B CN201611041040.6A CN201611041040A CN106513586B CN 106513586 B CN106513586 B CN 106513586B CN 201611041040 A CN201611041040 A CN 201611041040A CN 106513586 B CN106513586 B CN 106513586B
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- casting
- core
- upper frame
- scraper plate
- moulding
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/22—Moulds for peculiarly-shaped castings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/02—Sand moulds or like moulds for shaped castings
-
- 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
- B22C9/082—Sprues, pouring cups
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22C—FOUNDRY MOULDING
- B22C9/00—Moulds or cores; Moulding processes
- B22C9/10—Cores; Manufacture or installation of cores
Abstract
The present invention relates to a kind of casting methods of In Mine Crusher upper frame, crusher upper frame casting is divided into upper and lower two parts by its design feature, casting top is the flanged (FLGD) loop configuration in both ends, and the moulding by the way of scraper plate group core of casting top, top sets feed-ring；Casting lower part is beam structure；Using real sample moulding, centre sets blind riser for casting lower part；Casting is using rising pouring+ladder water-gap pouring method cast；Casting process is accurately simulated by casting simulation software MAGMA, determines final scheme；Cast molten steel removes wherein most gas and non-metallic inclusion after electric furnace+LF refining, then through vacuum processing.The present invention can reduce the microcosmic casting flaw such as frame body internal porosity, improve casting product quality, extend casting and use on the machine the service life；Realize the production domesticization of import crusher casting.
Description
Technical field
The present invention relates to casting technology field more particularly to a kind of casting methods of In Mine Crusher upper frame.
Background technology
H8800 crushers are a kind of crushers the most advanced in the H series that Sweden produces, and advantage is production capacity
High, excellent in efficiency, product granularity is uniform, and the program-controlled degree of digital manipulation is high, and every protective value is high, whole automation mechanized operations etc..Mesh
The H8800 gyratory crushers repair that preceding domestic enterprise uses using external import spare and accessory parts, not only expends a large amount of fund substantially,
And the supply time is long, seriously constrains the production development of enterprise, therefore the production domesticization for being badly in need of solving the crusher spare and accessory parts is asked
Topic.
Upper frame is component extremely crucial in In Mine Crusher equipment, is casting, since structure is complex, is casting
It is easily cracked to make rear flange fillet part, by making crystal phase analysis after dissection, it is found that there is microporosity defect in inside, the defect
Casting is resulted in finally to scrap；For there are the problem of, We conducted researches of technique, and the casting technique of upper frame is changed
Into.
Invention content
The present invention provides a kind of casting methods of In Mine Crusher upper frame, and it is microcosmic can to reduce frame body internal porosity etc.
Casting flaw improves casting product quality, extends casting and uses on the machine the service life；Realize the domestic of import crusher casting
Change.
In order to achieve the above object, the present invention is realized using following technical scheme：
A kind of casting method of In Mine Crusher upper frame, which is characterized in that include the following steps：
1) when formulating casting technique, crusher upper frame casting is divided into upper and lower two parts by its design feature, on casting
Portion is the flanged (FLGD) loop configuration in both ends, and casting lower part is beam structure；The moulding by the way of scraper plate group core of casting top, top
Portion sets feed-ring；Using real sample moulding, centre sets blind riser for casting lower part；Casting uses rising pouring+staged cast side
Method is poured into a mould；
2) casting lower part carries out moulding using whole real sample in sandbox, and after the completion of real sample moulding, sandbox is integrally overturn
180 °, take out real sample；Scraper plate is set, later tripping in bottom core, bottom core uses repetitional structure；In corresponding casting lower central
Position sets blind riser, and bullet core is set in blind riser, and annular is set around blind riser and mends lining, two sides of corresponding beam structure are equipped with
External chill ensures the feeding effect of blind riser；
3) under after complete bottom core, the outer core on lower casting top of crossing by scraper plate, outer core uses repetitional structure；Outer each decile of core
Gap between structure is close tight；External chill is set at companion flange knuckle；
4) complete outer core, removes scraper plate under, by process by intermediate core tripping in cavity bottom core print position, outer core and centre
It is fixed between core using Rod Bracing, prevents mutual position play；
5) will be good under core outside feed-ring by scraper plate scribing line and process, it is packaged with sandbox, and reality is buried with sand；
6) it is poured into a mould using rising pouring+staged, casting lower part is returned inner nozzle by the uniformly distributed multiple bottoms of bottom center and poured
Note, each bottom is returned inner nozzle and is connected by ring gate one and cross gate with sprue；Casting top passes through corresponding upper flanges portion
Position and along the circumferential direction uniformly distributed multiple tangential inner nozzle cast, tangential inner nozzle is connect by ring gate two with sprue；
7) it surveys instrument using cavity control and checks whether there is sundries in casting mold cavity, confirm in cavity and poured into a mould after cleaning；It adopts
It is poured into a mould with step type water gap, shortens the stamp time, accomplish that low temperature pours soon；Cast molten steel is after electric furnace+LF refining, then through vacuum
Processing removes wherein most gas and non-metallic inclusion；
8) cast(ing) surface uses fluorescent magnetic powder inspection, it is ensured that surface quality；Two end flanges on casting top use ultrasonic wave
UT detects a flaw, and ensures that internal soundness meets technology requirement.
Compared with prior art, the beneficial effects of the invention are as follows：
1) according to the design feature of upper frame, casting ontology is divided into upper and lower two parts, i.e., flanged (FLGD) annular cast
Part and the thicker header portion of wall thickness, set rational riser for two-part design feature, improve the interior of casting respectively
Portion's quality；
2) bottom core is 1/2 repetitional structure, and outer core is 1/6 repetitional structure, and more conventional method reduces decile quantity；Not only
Lower core error can be reduced, and reduces lower core and splits the drop problem that seamed belt is come, it is ensured that the cleanliness factor of cavity further improves
The inherent quality of casting；
3) as shown in figure 5, when conventional crusher upper frame is cast, 1# riser 14 and outer ring are multiple in the middle part of riser generally use
The setting form of the mono- riser 15 of 2#, the outside of each mono- riser 15 of 2# are respectively provided with riser and mend lining 16；The present invention is using annular heat preservation
Riser replaces the mono- riser 15 of 2#, is more advantageous to floating, the exhaust of impurity, casting ontology is made to obtain effective feeding；
4) casting lower beam part of wall is thick big, and feeding is difficult, and the present invention takes sets blind riser in centre, together
When setting annular mend lining and bullet core, improve the feeding efficiency of blind riser；In addition, external chill is equipped in two sides of crossbeam,
It can further improve the feeding effect of riser；
5) running gate system is shortened the stamp time, accomplishes that low temperature pours soon, ensured casting using bottom filling, ladder water-gap pouring
Global tissue is fine and close, reduces the casting flaw of interior microscopic shrinkage porosite.
Description of the drawings
Fig. 1 is the structure diagram of crusher upper frame casting of the present invention.
Fig. 2 is the schematic diagram one of upper frame casting method of the present invention.
Fig. 3 is the schematic diagram two of upper frame casting method of the present invention.
Fig. 4 is the schematic diagram three of upper frame casting method of the present invention.
Riser sets form when Fig. 5 is crusher upper frame routine casting.
In figure：1. 2. casting lower part of casting top, 3. feed-ring, 4. header portion external chill, 5. flange transition circumferential section
6. annular of external chill mends one 11. ring gate of lining 7. blind riser, 8. cross gate, 9. sprue, 10. ring gate, 2 12. bottom and returns interior pour
13. mono- 16. riser of riser of tangential ingate 14.1# riser 15.2# of mouth mend lining
Specific embodiment
The specific embodiment of the present invention is described further below in conjunction with the accompanying drawings：
A kind of casting method of In Mine Crusher upper frame, includes the following steps：
1) as shown in Figure 1, when formulating casting technique, crusher upper frame casting is divided into upper and lower two by its design feature
Part, casting top 1 are the flanged (FLGD) loop configuration in both ends, and casting lower part 2 is beam structure；Casting top 1 uses scraper plate group
The mode moulding of core, top set feed-ring 3；Using real sample moulding, centre sets blind riser 7 for casting lower part 2；Casting uses
Rising pouring+staged pouring procedure cast；
After crusher upper frame casting moulding and casting program determine, casting is accurately simulated by casting simulation software MAGMA
Process is made, predicts various casting flaws, and carry out modifications and adaptations；After the no any internal flaw of simulation casting generates,
Determine final casting process scheme；
2) casting lower part 2 carries out moulding using whole real sample in sandbox, and after the completion of real sample moulding, sandbox is integrally overturn
180 °, take out real sample；Scraper plate is set, later tripping in bottom core, bottom core uses 1/2 repetitional structure；As shown in Figure 2 and Figure 3, exist
The position at corresponding 2 center of casting lower part sets blind riser 7, and bullet core is set in blind riser 7, and annular is set around blind riser 7 and mends lining 6, right
Two sides of beam structure is answered to be equipped with external chill 4, ensure the feeding effect of blind riser 7；
3) under after complete bottom core, the outer core on lower casting top 1 of crossing by scraper plate, outer core uses 1/6 repetitional structure；Outer core is each
Gap between repetitional structure is close tight close to casting portion asbestos cord；External chill 5 is set at companion flange knuckle；
4) complete outer core, removes scraper plate under, by process by intermediate core tripping in cavity bottom core print position, outer core and centre
It is fixed between core using Rod Bracing, prevents mutual position play；
5) will be good under 3 outer core of feed-ring by scraper plate scribing line and process, it is packaged with sandbox, and reality is buried with sand；
6) as shown in figure 4, being poured into a mould using rising pouring+staged, casting lower part 2 passes through the uniformly distributed multiple bottoms of bottom center
It returns inner nozzle 12 to pour into a mould, each bottom is returned inner nozzle 12 and connected with sprue 9 by ring gate 1 and cross gate 8；Casting top 1
It is poured into a mould by corresponding upper flanges position and along the circumferential direction uniformly distributed multiple tangential inner nozzles 13, tangential inner nozzle 13 passes through ring
Shape running channel 2 11 is connect with sprue 9；
7) it surveys instrument using cavity control and checks whether there is sundries in casting mold cavity, confirm in cavity and poured into a mould after cleaning；It adopts
It is poured into a mould with step type water gap, shortens the stamp time, accomplish that low temperature pours soon；Cast molten steel is after electric furnace+LF refining, then through vacuum
Processing removes wherein most gas and non-metallic inclusion；
8) cast(ing) surface uses fluorescent magnetic powder inspection, it is ensured that surface quality；Two end flanges on casting top use ultrasonic wave
UT detects a flaw, and ensures that internal soundness meets technology requirement.
The foregoing is only a preferred embodiment of the present invention, but protection scope of the present invention be not limited thereto,
Any one skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (1)
1. a kind of casting method of In Mine Crusher upper frame, which is characterized in that include the following steps：
1) when formulating casting technique, crusher upper frame casting is divided into upper and lower two parts by its design feature, casting top is
The flanged (FLGD) loop configuration in both ends, casting lower part are beam structure；The moulding by the way of scraper plate group core of casting top, top is set
Feed-ring；Using real sample moulding, centre sets blind riser for casting lower part；Casting is poured using rising pouring+staged pouring procedure
Note；
2) casting lower part carries out moulding using whole real sample in sandbox, and after the completion of real sample moulding, sandbox is integrally overturn to 180 °,
Take out real sample；Scraper plate is set, later tripping in bottom core, bottom core uses 1/2 repetitional structure；In the portion of corresponding casting lower central
Position sets blind riser, and bullet core is set in blind riser, and annular is set around blind riser and mends lining, other than two sides of corresponding beam structure are matched
Chill ensures the feeding effect of blind riser；
3) under after complete bottom core, the outer core on lower casting top of crossing by scraper plate, outer core uses 1/6 repetitional structure；Outer each decile of core
Gap between structure is close tight；External chill is set at companion flange knuckle；
4) complete outer core, removes scraper plate under, by process by intermediate core tripping in cavity bottom core print position, outer core and intermediate core it
Between fixed using Rod Bracing, prevent mutual position play；
5) will be good under core outside feed-ring by scraper plate scribing line and process, it is packaged with sandbox, and reality is buried with sand；
6) it is poured into a mould using rising pouring+staged, casting lower part is returned inner nozzle by the uniformly distributed multiple bottoms of bottom center and poured into a mould, respectively
It returns inner nozzle and is connected by ring gate one and cross gate with sprue in bottom；Casting top passes through corresponding upper flanges position and edge
The uniformly distributed multiple tangential inner nozzle cast of circumferencial direction, tangential inner nozzle is connect by ring gate two with sprue；
7) it surveys instrument using cavity control and checks whether there is sundries in casting mold cavity, confirm in cavity and poured into a mould after cleaning；Using rank
Ladder type water-gap pouring shortens filling time, accomplishes that low temperature pours soon；Cast molten steel after electric furnace+LF refining, then through vacuum at
Reason removes wherein most gas and non-metallic inclusion；
8) cast(ing) surface uses fluorescent magnetic powder inspection, it is ensured that surface quality；Two end flanges on casting top are visited using ultrasonic wave UT
Wound ensures that internal soundness meets technology requirement.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611041040.6A CN106513586B (en) | 2016-11-22 | 2016-11-22 | A kind of casting method of In Mine Crusher upper frame |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611041040.6A CN106513586B (en) | 2016-11-22 | 2016-11-22 | A kind of casting method of In Mine Crusher upper frame |
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| Publication Number | Publication Date |
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| CN106513586A CN106513586A (en) | 2017-03-22 |
| CN106513586B true CN106513586B (en) | 2018-06-08 |
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| CN108339945B (en) * | 2018-03-19 | 2024-01-09 | 江苏吉鑫风能科技股份有限公司 | Casting mold and casting method for large disc type complex structure parts |
| CN109332604B (en) * | 2018-11-02 | 2021-02-05 | 四川共享铸造有限公司 | Method for solving shrinkage porosity of cylindrical nodular iron casting |
| CN113770312A (en) * | 2020-06-10 | 2021-12-10 | 合肥市瑞宏重型机械有限公司 | Hammer disc drainage casting system and casting process thereof |
| CN112170785A (en) * | 2020-08-25 | 2021-01-05 | 常熟市虹桥铸钢有限公司 | Casting method of hub reduction gear frame |
| CN112247068A (en) * | 2020-08-25 | 2021-01-22 | 常熟市虹桥铸钢有限公司 | Casting method of upper casting of gearless electric propeller hull |
| CN112872297B (en) * | 2020-12-25 | 2023-04-25 | 兰州高压阀门有限公司 | Stepped feeding casting process for large-sized profile section casting |
| CN113953487A (en) * | 2021-10-29 | 2022-01-21 | 福建华威钜全精工科技有限公司 | Low-pressure casting method for preventing shrinkage of bearing seat of automobile control arm |
| CN114226645A (en) * | 2021-10-29 | 2022-03-25 | 鞍钢铸钢有限公司 | Casting method of thin-wall rolling mill frame |
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| JPS5152329A (en) * | 1974-10-31 | 1976-05-08 | Sumitomo Metal Ind | CHUZOYOSUNAGATAZOKEISETSUBI |
| CN203018119U (en) * | 2012-12-15 | 2013-06-26 | 杭州山虎机械有限公司 | Upper frame body of rotary crusher |
| CN103418750A (en) * | 2013-07-22 | 2013-12-04 | 洛阳市兴荣工业有限公司 | Spherical valve main body casting technology |
| CN104841886A (en) * | 2015-04-24 | 2015-08-19 | 辽宁福鞍重工股份有限公司 | Method for detecting lower core of scraper plate in heavy gas turbine compressor exhaust casing body rib plate position |
| CN205020129U (en) * | 2015-08-04 | 2016-02-10 | 埃里斯克矿山工程机械有限公司 | Easily assemble cone crusher's support body |
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