CN104759606B - Rapid progressive solidification technique device for high manganese steel rolling mortal wall casting - Google Patents
Rapid progressive solidification technique device for high manganese steel rolling mortal wall casting Download PDFInfo
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- CN104759606B CN104759606B CN201510183763.9A CN201510183763A CN104759606B CN 104759606 B CN104759606 B CN 104759606B CN 201510183763 A CN201510183763 A CN 201510183763A CN 104759606 B CN104759606 B CN 104759606B
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- foundry goods
- cold mould
- pony sill
- mortar wall
- rolled mortar
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Abstract
The invention discloses a rapid progressive solidification technique device for a high manganese steel rolling mortal wall casting. The rapid progressive solidification technique device comprises a cope box, a core and a base. The core is arranged in the cope box. The bottom of the cope box is fixedly connected with the base. The base comprises a base frame and a cooling device. An annular groove is formed in the base frame. The annular groove is arranged in the cooling device and forms an annular water flow channel. The water flow channel is communicated with a water inlet pipe and a water outlet pipe. In work, the cooling face of the cooling device is tightly attached to the work face of an inner cavity of the casting. By the adoption of the rapid progressive solidification technique device, it is guaranteed that the cast structure of a rolling mortal wall, especially the important work portion of the rolling mortal wall is small in crystal particle size and free of a shrinkage cavity, shrinkage porosity and a slag inclusion defect in the casting process.
Description
Technical field
The invention belongs to plant equipment manufacturing technology field, and in particular to a kind of potassium steel rolled mortar wall foundry goods rapid sequential coagulates
Gu technique device.
Technical background
Gyratory crusher is the industrial departments such as metallurgy, chemical industry, building materials, water power, mine, transport development to each of different hardness
Planting Ore or rock carries out a kind of broken and plant equipment in small, broken bits, with structure reliability, smooth running, production efficiency height, tune
The features such as perfect square is just, product granularity is uniform.As shown in figure 1, wherein, part 1 ' is rolled mortar wall to its operation principle, the crushing wall of part 2 ', part
3 ' is bevel gear, part 4 ' is eccentric swing mechanism.
In disintegrating machine, rolled mortar wall and crushing wall are two critical components during equipment operation, when disintegrating machine works,
The two workpiece are extruded by broken material, impacted and abrasion, so as to fail rapidly, therefore the product of its working life decision device
Matter quality and work efficiency, improve the fabricating quality of rolled mortar wall and crushing wall, its wearability are particularly improved, such that it is able to improve
The working life of disintegrating machine, work efficiency, and reduce equipment loss.
As shown in Fig. 2 a, 2b, A portions are its important process positions to rolled mortar wall structure.Rolled mortar wall is needed in use
Good shock resistance and wear resistance, therefore the method production rolled mortar wall that conventional high manganese steel material is cast, but it is high
Manganese steel is a kind of essential coarse grained metal material, and because heat treatment process is without phase transformation, it is impossible to by heat treatment crystal grain thinning, so
High manganese steel casting casts the grain size size in original structure in addition to requiring foundry goods without casting flaws such as shrinkage cavity and porosity, field trashes
To foundry goods shock resistance and it is anti-wear can produce important impact, for rolled mortar wall, obtain crystal grain it is tiny, without shrinkage cavity
The cast sturcture of the defect such as shrinkage porosite and slag inclusion, is the difficult problem in foundry production.
In existing rolled mortar wall casting process scheme, sand casting technology is most generally used, Fig. 3 a, 3b show two kinds
Different founding method, in Fig. 3 a, 3b, 1 '-running gate system, 2 '-feeding head, 3 '-molding sand, 4 '-rolled mortar wall (foundry goods),
5 '-cope, 6 '-drag box.In Fig. 3 a, orientation when rolled mortar wall casts is identical with during work, and working position is under foundry goods
Portion, but because working position foundry goods is thicker, foundry goods top is relatively thin, and in solidification, foundry goods top first solidifies, and solidifies behind bottom, under
Behind portion solidify when due to cannot get upper metal feeding, must foundry goods bottom working position produce shrinkage cavity shrinkage porosity.Therefore, cast
Part working position is inevitably present shrinkage porosity defect of contraction cavity, affects performance and working life.
In Fig. 3 b, foundry goods working position upward, feeding is carried out using rising head to foundry goods working position, it is possible to achieve foundry goods from
Under supreme consecutive solidification, it is to avoid foundry goods produces shrinkage porosity defect of contraction cavity, but because foundry goods working position is upper and contact with rising head,
According to metal freezing principle, Inclusions During Solidification of Steel floats upwards, and this characteristic is assembled at field trash final set position.Then
Foundry goods working position field trash is relatively more, and now the important process position of foundry goods belongs to final set position on foundry goods top, casting
Part setting time is long, thus coarse grains.Therefore, foundry goods working position may without shrinkage porosity defect of contraction cavity, but because crystal grain it is thick
Greatly, field trash is more, and shock resistance when foundry goods works must be poor with wear resistance.
The content of the invention
More than analysis can knowable to, simple sand casting is difficult to obtain high-quality potassium steel rolled mortar wall foundry goods, is
This casting difficult problem is solved, the invention provides a kind of potassium steel rolled mortar wall foundry goods quick solidification apparatus, this invention ensures that and roll
Mortar wall be particularly the important process position of rolled mortar wall obtain in casting process crystal grain it is tiny and without shrinkage cavity and porosity, without slag inclusion lack
Sunken cast sturcture.
To reach above-mentioned purpose, the present invention is adopted the following technical scheme that：Potassium steel rolled mortar wall foundry goods rapid sequential solidification dress
Put, including cope, core and base, the built-in core of cope, the bottom of cope is fixedly connected with base, base includes bottom
Mounting and cold mould, pony sill forms a cannelure, and the cannelure loads cold mould, and cold mould forms annular flow channel, and the current lead to
Road connects water inlet pipe and outlet pipe, and during work, the cooling surface of cold mould is close to the inner chamber work surface of foundry goods.
Preferably, the water stream channel of cold mould is inwards unclosed, this inwardly side port by the outer of the inner cylinder of pony sill
Wall is sealed.
Preferably, it is fixedly connected by several bolts between cold mould and pony sill, bolt stretches through from the bottom up of pony sill
To the base of cold mould.
Preferably, water inlet pipe, outlet pipe stretch into the water stream channel of cold mould from the external world by pony sill after respectively, water inlet pipe and
Water outlet pipe part is in opposite sides.
Preferably, the phase contact portion between cold mould and pony sill loads two sealing rings, and two sealing rings are respectively at cold mould
Water stream channel the top of side port inwardly, bottom.
Preferably, push pedal is loaded between the outer ring of cold mould and the exterior circular column of pony sill, during work, the lower surface of foundry goods is affixed on
The top of push pedal；Several push rods are movably stretched into from the bottom of pony sill, and the lower surface to push pedal is rectified in it, can be pushed up upwards
Push pedal.
Preferably, the lower surface of cope fits in the upper surface of pony sill, and both are accordingly provided with location hole, pass through
Alignment pin firm position.
Preferably, core forms the upper part inner-cavity structure of rolled mortar wall, core by core print and the Internal hole positioning of pony sill
Pre-buried running gate system and rising head.
The present invention relates to a kind of novel technique device that important foundry goods-rolled mortar wall casts on a kind of gyratory crusher, should
Technical scheme, at foundry goods important process position using cooling technology is forced, makes foundry goods important compared with existing sand casting technology
While position obtains fine grain structure in process of setting, consecutive solidification is realized, it is to avoid foundry goods produces shrinkage cavity and porosity and folder
Debris defect, fundamentally solves the quality of rolled mortar wall casting.The results showed, what the technical scheme was produced rolls mortar
Wall, its service life is 2 times of 1.5 ∽ of ordinary sand casting method.
Description of the drawings
Fig. 1 is gyratory crusher fundamental diagram.
Fig. 2 a, 2b are rolled mortar wall structure charts.
Fig. 3 a, 3b are two kinds of existing schemes of rolled mortar wall sand casting.
Fig. 4 is apparatus of the present invention production structure principle chart.
Fig. 5 is the assembling relationship figure of base and Tui Song mechanisms.
Fig. 6 a, 6b are the assembly relation structure decomposition figures of base and Tui Song mechanisms.
Fig. 7 a, 7b are cast outer mold structure figures.
Fig. 8 a, 8b are cope moulding making figures.
Fig. 9 a, 9b are core making figures.
Figure 10 a, 10b are core box structure charts.
Figure 11 is that foundry goods pushes away loose state diagram.
In Fig. 4-11,1- water inlet pipes, 2- bolts, 3- sealing rings, 4- running gate systems, 5- cores, 6- rising heads, 7-
Outlet pipe, 8- push rods, 9- pony sills, 10- alignment pins, 11- push pedals, 12- cold moulds, 13- rolled mortar walls (foundry goods), on 14-
Sandbox, 15- foam hangers, 16- moulding external molds, 17- molding sand, 18- coremaking filling sand, 19- core boxes, 20- coremaking base plates,
21- clamps wedge.
Specific embodiment
The preferred embodiment of the present invention is elaborated below in conjunction with the accompanying drawings.
As shown in figure 4, the present embodiment device includes cope 14, core 5, base and Tui Song mechanisms, base includes base
Frame 9 and cold mould 12, pony sill 9 forms a cannelure 9-1, and the cannelure loads cold mould 12, and the inner side of cold mould 12 is formed inwards not
The annular flow channel 12-1 of closing, the side port inwardly of water stream channel is sealed by the outer wall of the inner cylinder 9-2 of pony sill 9, cold
It is fixedly connected by several bolts 2 between type 12 and pony sill 9, bolt 2 stretches through to the bottom of cold mould 12 from the bottom up of pony sill 9
Side.Phase contact portion between cold mould 12 and pony sill 9 loads sealing ring 3, and sealing ring 3 can fill two, be respectively at cold mould 12
The side port top and the bottom inwardly of water stream channel 12-1.The outer wall upward of cold mould 12 is mutually fitted with the outer wall that descends inwardly of rolled mortar wall (foundry goods) 13
Match somebody with somebody.
Water inlet pipe 1, outlet pipe 7 are respectively from the extraneous water stream channel 12-1 by stretching into cold mould 12 after pony sill 9, water inlet pipe
1 is in opposite sides with outlet pipe 7.
Load push pedal 11 between the outer ring of cold mould 12 and the exterior circular column 9-3 of pony sill 9.The upper surface and pony sill of cold mould 12
The upper surface of 9 inner cylinder 9-2 maintains an equal level, and the upper surface of push pedal 11 maintains an equal level with the upper surface of the exterior circular column 9-3 of pony sill 9.
The lower surface of rolled mortar wall (foundry goods) 13 is affixed on the top of push pedal 11.Several push rods 8 are movably stretched into from the bottom of pony sill 9,
Rectify the lower surface to push pedal 11 in it, so as to pushing tow push pedal 11 upwards.
The lower plane of cope 14 is fitted with the upper surface of pony sill 9, and both are accordingly provided with location hole, by positioning
Pin 10 is positioned.
Core 5 is positioned by core print 5-1 with the endoporus 9-4 of pony sill 9, forms the upper part inner-cavity structure of rolled mortar wall, sand
The pre-buried running gate system 4 of core 5 and rising head 6, running gate system 4 and rising head 6 are all extended at the molding of foundry goods 13.
Cold mould 12 constitutes pressure cooling system by water inlet pipe 1, outlet pipe 7, and in casting solidification process, rolled mortar wall is in weight
Inner chamber work surface is close to cold mould cooling surface in the presence of power, promotes cold mould persistently to keep to the cooling energy in rolled mortar wall process of setting
Power.
Cold mould 12 is made by pure copper material, with good heat conductivity.Constitute the cold mould 12 that foundry goods forces cooling effect
Linked together with pony sill with sealing ring by connecting bolt, make foundry goods obtain the same of small grains at important process position
When, realize solidification, it is to avoid shrinkage porosity defect of contraction cavity.
Tui Song mechanisms install in the base, and it includes assembly relation such as Fig. 5 institutes of push rod and push pedal, base and Tui Song mechanisms
Show, its three-dimensional assembly relation is as shown in Fig. 6 a, 6b.
Cope is by the direct moulding of external mold, and external mold is corresponding with rolled mortar wall external form, using metal pattern, its structure such as Fig. 7 a,
Shown in 7b, filling moulding after set cope, the hanger of rolled mortar wall adopts foam loose piece 15, foam loose piece not delivery to pour in die cavity
Gasify at high temperature during note.
Rising head 6 and cast passage 4 needed for technique is made up of corresponding insulating riser sleeve and refractory tube, is directly buried during moulding
In entering sand mold, modeling process is as shown in Fig. 8 a, 8b.
Core forms the inner-cavity structure of rolled mortar wall with cold mould, and wherein core forms the inner-cavity structure on rolled mortar wall top, cast
System is directly imbedded by refractory tube and running gate system passage is directly constituted in core, the centre that wherein sprue should be in core, and
It is corresponding with the refractory tube position of cope.
Core by core box filling moulding, its molding operation as shown in Fig. 9 a, 9b, the structure of core box 19 as shown in Figure 10 a, 10b,
Core box is spliced by two half portions are relative, and two half portions form two corresponding lugs, and lug corresponding two-by-two during moulding is adopted
Wedge shape clamping plate 21 is clamped.
After base, core and cope mould assembling constitute die cavity, by running gate system casting of molten metal, molten metal solidification
When, because cold mould is in the presence of cooling water, relatively low temperature and powerful heat absorption capacity are kept, make rolled mortar wall important process portion
The thick wall part of position quick solidification in the presence of cold mould, to making foundry goods bottom also obtain higher degree of supercooling because quickly cooling down,
According to the principle of dynamics of metal freezing, rate of cooling is faster, and degree of supercooling is bigger, and now crystal grain is more tiny, so as to ensure to roll mortar
Wall working position obtains tiny crystal grain.
Though foundry goods working position is thick wall part, the heat conduction and heat absorption capacity also quick solidification due to cold mould, and foundry goods
Top with sand mold because contacting, and the capacity of heat transmission is poor with cooling capacity, and solidification is relatively slow, thereby may be ensured that carry out from bottom to up it is suitable
Sequence solidifies, and good feeding capacity is arranged to bottom at top, and final inclusion floating enters foundry goods top inoperative position and rising head
It is interior, obtain foundry goods working position and organize without shrinkage cavity and porosity and inclusion defects, and crystal grain is tiny.Therefore, it is possible to ensure to obtain
High-quality rolled mortar wall foundry goods.
When casting solidification enters the contraction phase after finishing, foundry goods is shunk due to cold mould produces inhibition, therefore in base
Design Tui Song mechanisms, Tui Song mechanisms are made up of push pedal 11 with push rod 8, and a thrust upwards, push rod 8 are applied to push rod during work
The distance upwards of push pedal 11 is promoted, foundry goods is unclamped with cold mould, as shown in figure 11, it is ensured that foundry goods free shrink, prevent foundry goods
Cracking.
Rolled mortar wall foundry goods is produced by apparatus of the present invention, compared with traditional sand casting technology, with advantages below：
1st, foundry goods work crystal grain is tiny, it is to avoid shrinkage cavity and porosity defect, it is to avoid field trash leads in foundry goods working position
The casting quality for crossing apparatus of the present invention production is good, and long service life, production practices show, its service life is same type normal sands
1.5～2 times of type foundry goods life-span.
2nd, in apparatus of the present invention, base is permanent structure, constitutes the nowel of foundry goods, when casting and molding is produced, only needs to make
Cope and core, required molding operation is simple, and molding sand usage amount is few, and its molding sand usage amount only has ordinary sand casting
Less than half, therefore moulding expense is few, low cost.
3rd, the labor intensity of workman can be reduced by apparatus of the present invention, while casting accuracy is higher, is suitable for rolled mortar wall
Produce in enormous quantities.
Claims (6)
1. a kind of potassium steel rolled mortar wall foundry goods rapid sequential solidification technology device, including cope, core and base, in cope
Sand loading core, the bottom of cope is fixedly connected with base, it is characterized in that：Base includes pony sill and cold mould, and pony sill forms one
Cannelure, the cannelure loads cold mould, and cold mould forms annular flow channel, and the water stream channel connects water inlet pipe and outlet pipe, work
When making, the cooling surface of cold mould is close to the inner chamber work surface of foundry goods；The water stream channel of cold mould it is inwards unclosed, this inwards by
The outer wall of the inner cylinder of pony sill is sealed；It is fixedly connected by several bolts between cold mould and pony sill, bolt is from pony sill
Bottom up stretches through to the base of cold mould.
2. potassium steel rolled mortar wall foundry goods rapid sequential solidification technology device as claimed in claim 1, is characterized in that：Water inlet pipe,
Outlet pipe stretches into respectively the water stream channel of cold mould from the external world after pony sill, and water inlet pipe is with water outlet pipe part in opposite sides.
3. potassium steel rolled mortar wall foundry goods rapid sequential solidification technology device as claimed in claim 1, is characterized in that：Cold mould and bottom
Phase contact portion between mounting loads two sealing rings, and two sealing rings are respectively in the side port inwardly of the water stream channel of cold mould
Portion, bottom.
4. potassium steel rolled mortar wall foundry goods rapid sequential solidification technology device as claimed in claim 1, is characterized in that：Outside cold mould
Load push pedal between the exterior circular column of circle and pony sill, during work, the lower surface of foundry goods is affixed on the top of push pedal；Several push rods are the bottom of from
The bottom of mounting is movably stretched into, and the lower surface to push pedal is rectified in it, can pushing tow push pedal upwards.
5. potassium steel rolled mortar wall foundry goods rapid sequential solidification technology device as claimed in claim 1, is characterized in that：Cope
Lower surface fits in the upper surface of pony sill, and both are accordingly provided with location hole, by alignment pin firm position.
6. potassium steel rolled mortar wall foundry goods rapid sequential solidification technology device as claimed in claim 1, is characterized in that：Core passes through
Core print and the Internal hole positioning of pony sill, form the upper part inner-cavity structure of rolled mortar wall, the pre-buried running gate system of core and rising head.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183763.9A CN104759606B (en) | 2015-04-17 | 2015-04-17 | Rapid progressive solidification technique device for high manganese steel rolling mortal wall casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510183763.9A CN104759606B (en) | 2015-04-17 | 2015-04-17 | Rapid progressive solidification technique device for high manganese steel rolling mortal wall casting |
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| CN104759606A CN104759606A (en) | 2015-07-08 |
| CN104759606B true CN104759606B (en) | 2017-05-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106180659B (en) * | 2016-08-30 | 2018-01-02 | 烟台万隆真空冶金股份有限公司 | A kind of strand directional solidification and the Combined water chill mould of regional choice cooling |
| CN112846080B (en) * | 2021-01-05 | 2022-12-02 | 中国第一重型机械股份公司 | Integral casting control method for rudder blade casting for large ship |
| CN114799085A (en) * | 2022-05-16 | 2022-07-29 | 合肥市瑞宏重型机械有限公司 | Cavity exhaust device and exhaust method for slag ladle casting |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6012306A (en) * | 1983-06-30 | 1985-01-22 | Hashimoto Forming Co Ltd | Forming die for wheel cover |
| CN201357206Y (en) * | 2009-02-27 | 2009-12-09 | 湖南五星重工有限公司 | Mold for lost foam casting for large-scale high manganese steel crushing walls, roll crushing walls and toothed plates |
| CN201357209Y (en) * | 2009-02-27 | 2009-12-09 | 湖南五星重工有限公司 | Mold for circular truncated cone-shaped non-uniform wall thickness casting |
| CN202239494U (en) * | 2011-09-14 | 2012-05-30 | 马鞍山市海天重工科技发展有限公司 | Chilling block device for lost foam casting of crushing wall |
| CN102962397B (en) * | 2012-11-02 | 2015-12-02 | 浙江双金机械集团股份有限公司 | A kind of circular cone sand making machine crushing wall casting moulds and casting technique |
| CN103878312B (en) * | 2012-12-19 | 2016-08-31 | 江苏华东风能科技有限公司 | The system for casting and pouring of wind-driven generator taper support foundry goods |
| CN204524232U (en) * | 2015-04-17 | 2015-08-05 | 浙江机电职业技术学院 | Potassium steel rolled mortar wall foundry goods rapid sequential coagulation system |
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Effective date of registration: 20170731 Address after: Jiangsu city of Xuzhou province Xuzhou Industrial Park Road on the west side of the new Patentee after: XUZHOU YIZHONG FORGING EQUIPMENT CO., LTD. Address before: Hangzhou City, Zhejiang province Binjiang District 310053 shore road 528 Patentee before: Zhejiang Institute of Mechanical & Electrical Engineering |
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Address after: West side of Xinquan Road, Xuzhou Industrial Park, Jiangsu Province Patentee after: XUZHOU DAYI HEAVY FORGING EQUIPMENT Co.,Ltd. Address before: West side of Xinquan Road, Xuzhou Industrial Park, Jiangsu Province Patentee before: XUZHOU YIZHONG FORGING EQUIPMENT Co.,Ltd. |
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