CN105195671B - A kind of casting technique of embedded bimetal hammerhead and its production method and the bimetal hammerhead based on Sand-Faced Metal Mould Casting - Google Patents
A kind of casting technique of embedded bimetal hammerhead and its production method and the bimetal hammerhead based on Sand-Faced Metal Mould Casting Download PDFInfo
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Abstract
The present invention relates to a kind of embedded bimetal hammerhead and its production method and the bimetal hammerhead based on Sand-Faced Metal Mould Casting casting technique, it belongs to Sand-Faced Metal Mould Casting mechanical field.The present invention includes tup and hammer handle, tup and hammer handle melting connection, and tup uses rich chromium cast iron material, and hammer handle uses cast steel, additionally provides the production method of embedded bimetal hammerhead and the casting technique of the embedded bimetal hammerhead based on Sand-Faced Metal Mould Casting.The Embedded Double metal hammer head surface quality for producing of the invention is good, dimensional accuracy is high, bimetal hammerhead degree of fusion is high, product quality is easily controlled, and casting technique energy-conservation, section material, Functionality, quality and appealing design, environmental protection.
Description
Technical field
The present invention relates to a kind of tup, processing method and technique, more particularly, to a kind of embedded bimetal hammerhead and its
The casting technique of production method and the bimetal hammerhead based on Sand-Faced Metal Mould Casting, it belongs to Sand-Faced Metal Mould Casting mechanical field.
Background technology
Tup is the hitting part in the industry crushing mechanism such as metallurgy, mine, electric power, building materials, belongs to consumable accessory, uses the longevity
Life is general very short, and annual consumption is huge；Tup is used for the broken of stone, to the hardness requirement of the striking portion of tup compared with
It is high；For metal, hardness is higher, and fragility is bigger, in order to prevent tup to be connected and installed in the portion of crushing mechanism rotating shaft
Point --- the forced breakage of hammer handle, tup service life is influenceed, often using compound casting in the Foundry Production of tup
The mode of production, i.e.,：The part that tup is impacted, using the antifriction cast iron that hardness is very high, toughness is poor, and is connected with crushing mechanism
Position --- hammer handle use the preferable carbon steel of toughness.
General mode of production sand casting, i.e.,：Level is placed horizontally at using by the carbon steel hammer handle of cast production in advance
In the sand mold of parting moulding, then mould assembling cast, this mode of production is primarily present the deficiency of following several respects：1）Productive labor is strong
Degree is big, low production efficiency；2）In tup bimetallic casting process, molten iron casting enters casting mold, during beginning molten iron not with hammer handle
Contact, when certain position is grown on molten iron, molten iron is just contacted with hammer handle, with the contact surface of hammer handle is exactly whole hammer during contact
Handle is embedded in the plane of tup, and contact surface is big, and hammer handle is obvious to the cooling rate of tup molten iron, and hammer handle is short with iron liquid time of contact,
Both amalgamations are poor.
Side riser feeding is used in casting technique, the feeding effect in tup casting process is poor, and molten iron recovery rate is low.Separately
Outer tup, hammer handle casting mold use horizontal parting mode, and, in mo(u)ld top half, in mo(u)ld bottom half, such Foundry Production goes out half for tup, hammer handle half
Casting there is a parting line formed by die joint in the centre of casting, increased casting cleaning polishing workload；
Additionally, the mode of production, the arrangement quantity of tup is fewer in each casting mold, comparatively just reduces production efficiency.
Metal type sand-covering casting be a kind of new casting technique, with energy-conservation, section material, high-quality, green the features such as, mainly should
For structure, the production in enormous quantities of the simple casting of shape matching, such as：Bent axle, flywheel and abrading-ball etc..Not yet there is swage to cover at present
Sand casting technique is applied to composite casting production, main reasons is that：Although bimetal hammerhead cast shape is uncomplicated, such as
When fruit production technology uses casting technique identical with sand casting, however it remains produce embedded bimetal hammerhead with sand casting
Identical problem, What is more, because Sand-Faced Metal Mould Casting cooling velocity is fast, it is easier to cause tup to be melted between the two with hammer handle
Close bad, so as to cause in use, tup is separated with hammer handle, cause bimetal hammerhead to fail, cause safety hidden
Suffer from.
Publication date is on December 17th, 2014, in the Chinese patent of Publication No. 104213035A, discloses a kind of title
It is the patent of invention of " a kind of double-fluid double metal composite hammer head and its casting technique ".The patent takes plane vertical pouring, has outside two
Cast gate, tup is poured into a mould after first pouring into a mould hammer handle, and hammer handle is short with iron liquid time of contact, and both amalgamations are poor, easily made during use
Into potential safety hazard, and the complex process, therefore still there is drawbacks described above in it.
Publication date is on 04 13rd, 2014, in the Chinese patent of Publication No. 103752788A, discloses a kind of title
It is the patent of invention of " a kind of die spinning bimetal hammerhead technique ".This patent first pours tup part, then pours hammer handle portion
The order divided, is poured into the bottom filling metal mold tup mould in sandbox successively, and the patent is because Sand-Faced Metal Mould Casting is cooled down
Speed is fast, easily causes tup and fuses between the two bad with hammer handle, and so as to cause in use, tup divides with hammer handle
From, cause bimetal hammerhead to fail, therefore still there is drawbacks described above in it.
The content of the invention
It is an object of the invention to overcome above shortcomings in the prior art, and a kind of reasonable in design is provided,
The Embedded Double metal hammer head surface quality of production is good, dimensional accuracy is high, bimetal hammerhead degree of fusion is high, product quality is easily controlled
System, and casting technique energy-conservation, section material, Functionality, quality and appealing design, the embedded bimetal hammerhead of environmental protection and its production method and based on iron
Type covers the casting technique of the bimetal hammerhead of sand casting.
The present invention the used technical scheme that solves the above problems is：The embedded bimetal hammerhead, it is characterised in that：Bag
Tup and hammer handle, the tup and hammer handle melting connection are included, tup uses rich chromium cast iron material, and hammer handle uses cast steel.
The present invention also provides a kind of production method of embedded bimetal hammerhead, using the Embedded Double in claim 1
Metal tup, it is characterised in that：Upper swage, lower swage are carried out first cover sand molding, form tup casting mold and running gate system casting
Type, is inserted perpendicularly into hammer handle, then the conjunction for completing swage and lower swage one by one in the hammer handle core print of the good lower swage casting mold of moulding
Case operation, in upper swage, the die cavity of lower swage that molten iron casting is entered after mould assembling, completes the cast of tup casting, with laggard
Row solidification cooling, after casting solidifies completely, unpacks and takes out tup casting, and now tup casting solidifies completely, cast iron
Tup also fuses into an entirety completely with the hammer handle of cast steel, so as to complete the production of embedded bimetal hammerhead.
Preferably, hammer handle of the present invention and lower swage casting mold are 10 ° -15 ° using gradient；This gradient inserts hammer handle
It is fashionable well to be fitted with casting mold, make between the two without gap.
Preferably, offering upper and lower two sand baffle rings at hammer handle core print casting mold of the present invention, the sand baffle ring is higher by hammer
Handle core print 0.3mm, width is 10mm；Because two sand baffle rings are higher by core print 0.3mm, when hammer handle is inserted perpendicularly into hammer handle core print casting mold
When, first with two sand baffle ring frictions, the sand baffle ring that hammer handle continues 0.3mm in insertion process vertically downward can be rubbed off, rubbed
The sand wiped will by hammer handle together with being fitted tightly at hammer handle core print casting mold in casting mold, between it is very close to each other, it is ensured that
During molten iron casting, molten iron will not be leaked out between both, produce runout, cause tup casting wasted product.
The present invention also provides a kind of casting technique of the embedded bimetal hammerhead based on Sand-Faced Metal Mould Casting, using right
It is required that the production method of the embedded bimetal hammerhead in embedded bimetal hammerhead and claim 2-4 in 1, its feature exists
In：
（1）First embedded bimetal hammerhead casting mold die cavity and running gate system are formed with swage, lower Iron Mould Coated Sand；
（2）Tup casting mold is all placed in lower swage；
（3）Running gate system is placed in upper swage, using molten iron from by the way of top riser injection tup casting mold, in cast
During molten iron up in layer up filled from casting mold bottom, until be full of whole tup die cavity, most rising head is full of at last.
Preferably, the layer of sand that covers of tup of the present invention is 8mm, the layer of sand that covers of running gate system is more than 16mm；So that
With rising head in cooling procedure, there is very big difference in both cooling velocities to casting, the cooling of rising head is than tup casting portion
Cooling it is more slowly, it is ensured that in tup casting solidification cooling procedure, rising head carries out sufficient liquid to rising head to tup part
State feeding.
Preferably, tup of the present invention, hammer handle are by the way of being arranged vertically within swage, i.e.,：Whole tup, hammer
In the lower swage that handle vertical mould is arranged in, and hammer handle not with the incorporated partial insertion hammer handle core print of tup fused junction in,
And the length of this hammer handle core print be far smaller than hammer handle not with the length of the incorporated part of tup fused junction.
Preferably, present invention process can arrange 16 tup casting.
The present invention compared with prior art, with advantages below and effect：1）Rational in infrastructure, embedded hammer handle is using vertical
Insertion is positioned over casting mold mo(u)ld bottom half, and occupancy die location space is small, is placed more than sand casting on identical mold plane area
Many casting casting mold die cavities, improve 3-4 times of efficiency, and originally technology arrangement is placed 4 mold planes of casting, 16 can be placed now
Individual casting；2）Using foundry processing arrangement of the invention, in casting process, the iron water amount consumed per type is more, and casting mold is cold
Slow, the time that molten hot metal is contacted with hammer handle is long, and molten iron is contacted with the embedded hammer handle of cast steel all the time after pouring into casting mold, both
Degree of fusion is good, and bond strength is high；3）Using top riser feeding, be conducive in the liquid feeding of tup body, tup body in group
Knit solid cast defect few, substantially increase product service life；4）The layer of sand that covers of swage is much thicker than tup body at rising head
Layer of sand is covered at casting mold position, and rising head is small, feeding effect is good, while by the way of this technology arrangement, after molten iron is poured into casting mold,
Molten iron begins to carry out Layer by layer solidification feeding from bottom to top in casting process, tup, hammer handle with analysis in background technology
The sand casting of horizontal parting is compared, and saves molten iron more than 20%；5）Produced using Sand-Faced Metal Mould Casting mode of production tissue, easily
In mechanization production is realized, production efficiency is high, and labour intensity is low, product quality stabilization.
Brief description of the drawings
Fig. 1 is the casting structure schematic diagram one of the embedded bimetal hammerhead of the embodiment of the present invention.
Fig. 2 is the casting structure schematic diagram two of the embedded bimetal hammerhead of the embodiment of the present invention.
Fig. 3 is the mould assembling and closing structural representation that the embodiment of the present invention is based on the embedded bimetal hammerhead of Sand-Faced Metal Mould Casting
Figure.
Fig. 4 is the technology arrangement schematic diagram of the embedded bimetal hammerhead Sand-Faced Metal Mould Casting of the embodiment of the present invention.
Fig. 5 is the structural steel schematic diagram of the embedded bimetal hammerhead casting mold sand baffle ring of the embodiment of the present invention.
In figure：Tup 1, hammer handle 2, hammer handle core print 3, tup die cavity 4, upper swage 5, lower swage 6 covers layer of sand 7, sand baffle ring 8,
Running gate system 9, rising head die cavity 10.
Specific embodiment
The present invention is described in further detail below in conjunction with the accompanying drawings and by embodiment, and following examples are to this hair
Bright explanation and the invention is not limited in following examples.
Embodiment.
Referring to Fig. 1 to Fig. 5, the present embodiment mainly include tup 1, hammer handle 2, hammer handle core print 3, tup die cavity 4, upper swage 5,
Lower swage 6, cover layer of sand 7, sand baffle ring 8 and running gate system 9.
Tup 1 and hammer handle 2 in the present embodiment are connected, and tup 1 uses rich chromium cast iron material, and hammer handle 2 uses cast steel.
The casting technique that the present embodiment is based on the embedded bimetal hammerhead of Sand-Faced Metal Mould Casting is as follows：With swage 5, under
Swage 6 covers sand and forms embedded bimetal hammerhead casting mold die cavity and running gate system 9, and the layer of sand 7 that covers of tup 1 is generally 8mm,
The layer of sand 7 that covers of running gate system 9 is generally more than 16mm；The difference for covering the thickness of layer of sand 7 between the two is more than 8 millimeters so that casting
With rising head in cooling procedure, there is very big difference in both cooling velocities to part, the cooling of rising head is than the casting portion of tup 1
Cooling is more slowly, it is ensured that in the casting solidification cooling procedure of tup 1, rising head carries out sufficient liquid benefit to tup 1 to rising head
Contracting.
The casting mold of tup 1 is placed in lower swage 6, for embedded bimetal hammerhead, does not just exist die joint, can
Greatly reduce the cleaning polishing workload of cast product.
Running gate system 9 is placed in swage 5, and the hydrostatic head of rising head is maximum in casting process, so that it may gives full play to and emits
Feeding effect of the mouth to the casting mold of tup 1.
Using molten iron from by the way of top riser injection tup casting mold, molten iron is from casting mold bottom in casting process for the present embodiment
Up in layer up fill, until being full of whole tup die cavity 4, most rising head is full of at last, and type mode is filled in this cast, it is ensured that
From bottom to top, temperature is stepped up the thermograde of molten iron so that in casting process in casting mold, in casting mold molten iron can from
Carrying out on down finally carries out feeding using rising head from feeding to the part of the finally cast of tup 1, finally gives without inherence
Shrinkage porosite, the tup 1 of shrinkage cavity defect.
The technology arrangement scheme of the present embodiment by the way of tup 1, hammer handle 2 are arranged vertically within swage, i.e.,：Whole hammer
First 1, in the lower swage 6 that the vertical mould of hammer handle 2 is arranged in, and hammer handle 2 is not vertical with the incorporated part of the fused junction of tup 1 inserts
Enter to be fixed in the hammer handle core print 3 for fixedly mounting hammer handle 2 that lower swage 6 is made, and the length of this hammer handle core print 3 can be significantly smaller than
Hammer handle 2 not with the length of the incorporated part of the fused junction of tup 1, the thickness of lower swage 6 can be greatly reduced, both saved swage
Cost of manufacture, simultaneously as lower swage 6 is alleviated, so that ensureing that swage easily heats up to reach in process of production covers sand solidification
Temperature range, it is ensured that production efficiency, in addition importantly, because alleviating the weight of swage, so that in casting process
In, the solidification cooling of the casting of tup 1 is reduced, help mutually be fused well between tup 1 and hammer handle 2.
The present embodiment tup 1 and the vertically arranged technology mode of hammer handle 2 substantially increase the utilization rate of mold plane, and normal
The horizontal positioned arrangement of tup 1 of rule is compared, and 3-4 can be improved in the arrangement quantity of identical mold plane area upper ram 1
Times, as shown in figure 4, and this arrangement, can significantly simplify the mode of the placement of hammer handle 2 and be combined with the lower hammer handle 2 of casting mold
The required precision at place.
In order to ensure in casting process, molten iron will not leak from the gap of hammer handle 2 and the casting mold of tup 1 insertion bearing
Go out, this invention takes two measures, as shown in Figure 5：1）The insertion bearing of hammer handle 2 and casting mold, hammer handle 2, casting mold is taken
Certain gradient, gradient is 10 ° -15 °, and this gradient is fitted well when hammer handle 2 is inserted perpendicularly into casting mold, make both
Between there is no gap；2）Placed in casting mold and make upper and lower two sand baffle rings 8 at the casting mold of hammer handle core print 3 of hammer handle 2, such as the institute of accompanying drawing 5
Show, the size that sand baffle ring 8 is higher by hammer handle core print 3 is 0.3mm, and width dimensions are 10mm, are so inserted vertically downward into by hammer handle 2
When at the hammer handle core print 3 of casting mold, because two sand baffle rings 8 are higher by core print 0.3mm, hammer handle 2 rubs with two sand baffle rings 8 first, after
The continuous sand baffle ring 8 for being downwardly into 0.3mm can be rubbed off, and the sand for so rubbing off will be by hammer handle core print 3 in hammer handle 2 and casting mold
Fit tightly on together, between it is very close to each other, it is ensured that in molten iron casting, molten iron will not be leaked out between both,
Runout is produced, the casting wasted product of tup 1 is caused.
Can only be placed on four planar dimensions of the casting of tup 1 in common sand mold, can be put using technology arrangement of the invention
16 casting of tup 1 are put, the efficiency of the production of tup 1 had both been substantially increased, the molten iron demand of a type is greatly increased, so that
Cooling velocity of the casting of tup 1 in casting process is greatly reduced, setting time of the molten iron in casting mold is extended, makes tup
1 has the longer time to carry out fusion between the two with hammer handle 2, both is fused completely and is combined together, it is to avoid common
Iron Mould Coated Sand cooling velocity is too fast, causes both to fuse bad defect and produces.
The production method of the embedded bimetal hammerhead of the present embodiment：Complete upper swage 5, lower swage 6 first and carry out covering sand to make
Type, forms the casting mold and the casting mold of running gate system 9 of tup 1, and cast steel hammer handle 2 is inserted perpendicularly into one by one in the casting mold of lower swage 6 made,
Upper swage 5 is closed into lower swage 6 and completes mould assembling operation above, upper swage 5, the lower swage 6 that molten iron casting is entered after mould assembling
The cast of the casting of tup 1 is completed in die cavity, solidification cooling is then carried out, after casting solidifies completely, is unpacked and is taken the casting of tup 1
Go out, now the casting of tup 1 solidifies completely, the tup 1 of cast iron also fuses into an entirety completely with the hammer handle 2 of cast steel, so that
Complete the production of embedded bimetal hammerhead.
The mode of this implementation Sand-Faced Metal Mould Casting technique forms embedded bimetal hammerhead casting mold die cavity, tup casting technique
By the way of arrangement is using being arranged vertically, teeming pours into a mould；Tup 1 is made in lower swage 6, and upper swage 5 is running gate system 9 and emits
Mouthful；Cast steel hammer handle 2 is directly inserted perpendicularly into the casting mold of hammer handle core print 3 for being positioned over the casting mold of lower swage 6 one by one during mould assembling and closing, is hammered into shape
It is partially disposed in the casting mold die cavity of tup 1 with what tup 1 was fused in handle 2, the part in hammer handle 2 not with the insertion fusion of tup 1 can portion
Divide and be fixed in casting mold, remainder hammer handle 2 can be exposed at the casting mold of lower swage 6 outside.Molten iron is entered by running gate system 9 during cast
Enter rising head, then respectively enter in the casting mold on rising head both sides, during filling type in casting mold, cast into tup 1 from molten iron one
Type, molten iron just constantly merge with the hammer handle 2 in the casting mold die cavity of tup 1 by contact, in the presence of high temperature liquid iron, tup 1 and hammer handle 2
Contact surface produce good fusion effect, mutually fusion, in subsequent solidification process, both just produce knot well
With joint efforts, after being cooled down completely to tup 1, tup 1 is integrally formed with hammer handle 2.
The die cavity 10 of the rising head in the present embodiment is the cavity for depositing liquid metal, as shown in figure 3, those skilled in the art are equal
Know.
Furthermore, it is necessary to explanation, the specific embodiment described in this specification, is named the shape of its parts and components
Claiming etc. can be with difference, and the above content described in this specification is only to structure example explanation of the present invention.It is all according to
The equivalence changes or simple change done according to the construction described in inventional idea of the present invention, feature and principle, are included in this hair
In the protection domain of bright patent.Those skilled in the art can do various to described specific embodiment
The modification of various kinds or supplement are substituted using similar mode, without departing from structure of the invention or surmount present claims
Scope defined in book, all should belong to protection scope of the present invention.
Claims (7)
1. a kind of production method of embedded bimetal hammerhead, including tup and hammer handle, the tup and hammer handle melting connection, hammer
Head uses rich chromium cast iron material, and hammer handle uses cast steel, it is characterised in that：First upper swage, lower swage are carried out covering sand and made
Type, forms tup casting mold and running gate system casting mold, and hammer is inserted perpendicularly into one by one in the hammer handle core print of the good lower swage casting mold of moulding
Handle, then the mould assembling operation of swage and lower swage is completed, upper swage, the die cavity of lower swage that molten iron casting is entered after mould assembling
In, the cast of tup casting is completed, solidification cooling is then carried out, after casting solidifies completely, unpack and take out tup casting, this
When tup casting solidify completely, the tup of cast iron and the hammer handle of cast steel also fuse into an entirety completely, so as to complete insertion
The production of formula bimetal hammerhead；Upper and lower two sand baffle rings are offered at hammer handle core print casting mold.
2. the production method of embedded bimetal hammerhead according to claim 1, it is characterised in that：The hammer handle and lower iron
Type casting mold is 10 ° -15 ° using gradient.
3. the production method of embedded bimetal hammerhead according to claim 1, it is characterised in that：The sand baffle ring is higher by
Hammer handle core print 0.3mm, width is 10mm.
4. a kind of casting technique of the embedded bimetal hammerhead based on Sand-Faced Metal Mould Casting, using any power of claim 1-3
The production method of the embedded bimetal hammerhead in profit requirement, it is characterised in that：
（1）First embedded bimetal hammerhead casting mold die cavity and running gate system are formed with swage, lower Iron Mould Coated Sand；
（2）Tup casting mold is all placed in lower swage；
（3）Running gate system is placed in upper swage, using molten iron from by the way of top riser injection tup casting mold, in casting process
Middle molten iron is up in layer up filled from casting mold bottom, until being full of whole tup die cavity, most rising head is full of at last.
5. the casting technique of embedded bimetal hammerhead according to claim 4, it is characterised in that：The tup covers sand
Layer is 8mm, and the layer of sand that covers of running gate system is more than 16mm.
6. the production method of embedded bimetal hammerhead according to claim 1, it is characterised in that：The tup, hammer handle
By the way of being arranged vertically within swage, i.e.,：Whole tup, hammer handle casting mold die cavity are arranged vertically within lower swage, and hammer handle
Not with the incorporated partial insertion hammer handle core print of tup fused junction in, and this hammer handle core print length be far smaller than hammer handle not with
The length of the incorporated part of tup fused junction.
7. the casting technique of embedded bimetal hammerhead according to claim 4, it is characterised in that：The technology arrangement 16
Part tup casting.
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| CN201510537777.6A CN105195671B (en) | 2015-08-28 | 2015-08-28 | A kind of casting technique of embedded bimetal hammerhead and its production method and the bimetal hammerhead based on Sand-Faced Metal Mould Casting |
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| DE29521489U1 (en) * | 1995-08-03 | 1997-07-03 | SWB Stahlformgußgesellschaft mbH, 44791 Bochum | Wear parts |
| CN104550853A (en) * | 2013-10-25 | 2015-04-29 | 青岛和德隆机械有限公司 | HVHSS (high-vanadium high-speed steel) composite hammer head casting technology |
| CN104164609B (en) * | 2014-07-24 | 2016-05-18 | 宁国市开源电力耐磨材料有限公司 | A kind of hammer mill composite hammer |
| CN104190866B (en) * | 2014-08-18 | 2016-06-08 | 宁国市四方钢球模具设备有限公司 | A kind of bimetallic alloy hammer precoated sand manufacture method |
| CN204546455U (en) * | 2015-03-16 | 2015-08-12 | 衢州市鑫瑞机械有限公司 | A kind of Novel hammer |
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