CN110202097A - A kind of casting system and its manufacturing process of 5A cast steel dish plate - Google Patents
A kind of casting system and its manufacturing process of 5A cast steel dish plate Download PDFInfo
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- CN110202097A CN110202097A CN201910615472.0A CN201910615472A CN110202097A CN 110202097 A CN110202097 A CN 110202097A CN 201910615472 A CN201910615472 A CN 201910615472A CN 110202097 A CN110202097 A CN 110202097A
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- lower mold
- mould body
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- 238000005266 casting Methods 0.000 title claims abstract description 60
- 229910001208 Crucible steel Inorganic materials 0.000 title claims abstract description 22
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 16
- 239000011347 resin Substances 0.000 claims abstract description 26
- 229920005989 resin Polymers 0.000 claims abstract description 26
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 19
- 238000009423 ventilation Methods 0.000 claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 10
- 239000004576 sand Substances 0.000 claims description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 25
- 229910052742 iron Inorganic materials 0.000 claims description 12
- 229910000831 Steel Inorganic materials 0.000 claims description 9
- 239000010959 steel Substances 0.000 claims description 9
- 239000003110 molding sand Substances 0.000 claims description 8
- 239000005011 phenolic resin Substances 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 239000013589 supplement Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 4
- 238000005336 cracking Methods 0.000 claims description 4
- 238000005520 cutting process Methods 0.000 claims description 4
- 238000012805 post-processing Methods 0.000 claims description 4
- 235000019353 potassium silicate Nutrition 0.000 claims description 4
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 4
- 229910000990 Ni alloy Inorganic materials 0.000 claims description 3
- 238000009825 accumulation Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 claims description 3
- SLGWESQGEUXWJQ-UHFFFAOYSA-N formaldehyde;phenol Chemical compound O=C.OC1=CC=CC=C1 SLGWESQGEUXWJQ-UHFFFAOYSA-N 0.000 claims description 3
- QELJHCBNGDEXLD-UHFFFAOYSA-N nickel zinc Chemical compound [Ni].[Zn] QELJHCBNGDEXLD-UHFFFAOYSA-N 0.000 claims description 3
- 229920001568 phenolic resin Polymers 0.000 claims description 3
- 238000012545 processing Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 239000000463 material Substances 0.000 abstract description 4
- 238000000465 moulding Methods 0.000 abstract description 2
- 230000000704 physical effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 7
- 208000002352 blister Diseases 0.000 description 3
- 208000037656 Respiratory Sounds Diseases 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 239000003915 liquefied petroleum gas Substances 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000009972 noncorrosive effect Effects 0.000 description 1
- -1 phenolic aldehyde Chemical class 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D15/00—Casting using a mould or core of which a part significant to the process is of high thermal conductivity, e.g. chill casting; Moulds or accessories specially adapted therefor
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Mold Materials And Core Materials (AREA)
- Casting Devices For Molds (AREA)
Abstract
The present invention relates to dish plate production technical fields, especially a kind of casting system of A cast steel dish plate, including lower mold body and upper mould body, the size of the upper mould body and lower mold body is mutually matched, multiple groups positioning mechanism is provided between the upper mould body and lower mold body, the upper end of the reinforcing rib is fixed with vent, the upper end of the vent is mounted on the ventilation rods through vent, the upper end of the ventilation rods and the inner top side of upper impression are mutually not in contact with each other, the two sides lower end of the upper mould body is mounted on the resin sand core through upper mould body, the lower impressions side is equipped with multiple ingates for passing through lower mold body, the other end horizontal connection of the ingate has cross gate.The present invention designs simplicity, suitable for all A995-5A material butterfly plate and structure similar to casting, good effect is achieved in actual production, casting molding rear surface quality is good, and as-cast structure is outstanding, and physical property meets castings desire.
Description
Technical field
The present invention relates to dish plate production technical field more particularly to the casting systems and its manufacture work of a kind of 5A cast steel dish plate
Skill.
Background technique
Butterfly valve is mainly used for smelting and sending out in natural gas, liquefied petroleum gas, chemical industry as a major class in industrial valve
Conveyed in the engineering systems such as electric environmental protection, building water supply and drainage various corrosivity, non-corrosive fluids medium pipeline on, for adjusting
It has begun replace the valves classes such as shut-off valve, gate valve in many cases with the development of butterfly valve with the flowing of truncation medium, because
This, the butterfly plate as butterfly valve main seal is just particularly important, and the defect of casting can all cause the use of valve very big
Puzzlement, and 5A material, due to its characteristic, often there is the defects of stomata, slag inclusion, crackle in casting process in the butterfly plate of the material,
Be before casting is not heat-treated reasonably be easy to produce very much crackle, or even fracture the case where.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of casting of the 5A cast steel dish plate proposed
Make system and its manufacturing process.
To achieve the goals above, present invention employs following technical solutions:
Design a kind of casting system of A cast steel dish plate, including lower mold body and upper mould body, the upper mould body and lower die master
The size of body is mutually matched, and multiple groups positioning mechanism, and multiple groups positioning mechanism are provided between the upper mould body and lower mold body
Layer annular spread, the lower mold body upper center offer lower impressions, offer mo(u)ld top half in the middle part of the lower end of the upper mould body
The size of chamber, the lower impressions and upper impression is mutually matched, and the inside lower end level of the upper impression is welded with reinforcing rib, described
The upper end of reinforcing rib is fixed with vent, the vent and upper impression clearance fit, and the upper end of the vent is equal
Ventilation rods through vent are installed, the upper end of the ventilation rods is mutually not in contact with each other with the inner top side of upper impression, described
The two sides lower end of upper mould body is mounted on the resin sand core through upper mould body, and the other end of the resin sand core extends to
The inner top side of type chamber, the lower impressions side are equipped with multiple ingates for passing through lower mold body, the other end of the ingate
Horizontal connection has cross gate, and the cross gate is interconnected by ingate and lower impressions, the upper center peace of the cross gate
Equipped with riser seat, the riser through riser seat is installed, and riser and ingate are interconnected in the middle part of the interior survey of the riser seat.
Preferably, the positioning mechanism includes being provided with the location hole of lower mold body upper end and being fixedly mounted on upper mold master
The positioning column of body lower end, the positioning column extend to the inside of location hole, and location hole and positioning column clearance fit.
Preferably, the upper end uniform welding of the upper mould body has multiple cylinders, and the upper end of the cylinder is welded with iron
Ring.
Preferably, the upper impression interior lower end uniform welding has multiple frozen iron blocks, and frozen iron blocks are located at vent
Lower end.
Preferably, the inner surface of the lower impressions is plated with wearing layer, and wearing layer is specially zinc-nickel alloy layer.
Preferably, the lower end compound sticking of the lower mold body has pressure-reducing pad.
The present invention also provides a kind of manufacturing process of the casting system of A cast steel dish plate, the specific steps are as follows:
The design of S1, cross gate, cross gate is arranged at the spue line of upper mould body and lower mold body, and the sectional area of cross gate
Be equal to the sectional area of ingate, make MOLTEN STEEL FLOW reduce rapidly molten steel to the impact power of running channel molding sand and reduce be involved in air
Tendency, ingate water inlet is placed on mould main body, and under the premise of or else influencing poring rate, width is less than the 2/ of casting thickness
3, as far as possible by the long and narrow of the design of intake, ingate direction is consistent with butterfly plate reinforcing rib direction, prevents just turbulent in casting；
The design of S2, riser determine that the height of riser seat is riser height according to the modulus of casting, supplement weight, supplement distance
1/3-2/3, minimum 30cm, riser setting increase sand mo(u)ld entirety exhaust performance, riser setting machined surface reduction it is non-
The postprocessing working procedures of machined surface, the design of riser seat be cracked in order to avoid casting cutting extend between it is internal；
The design of S3, the size of vent and position, for vent mainly on the reinforcing rib of butterfly plate casting, vent is straight
Diameter is the 2/3 of butterfly plate Rib Thickness, is highly 1/2-1 times of butterfly plate thickness, and ventilation rods are placed on vent and are had reached
Gas effect can both guarantee the discharge of the rapid and gas of casting, be also possible to prevent the stomata generated because of feeling suffocated and shrinkage cavity；
The design of S4, resin sand core manufacture craft, resin sand core make of alkaline phenol formaldehyde resinoid sand, and resin sand core center is emptied
It is the 1/3 of diameter, intensity is greater than water-glass sand to phenol resin sand after curing, its intensity can also be guaranteed by emptying 1/3 immediately,
It can be vented from resin sand core both ends in casting, reduce the accumulation of gas in resin sand core, bleb be reduced, in view of phenolic aldehyde tree
Rouge sand good collapsibility performance after high temperature can not have to the molding sand for removing cleaning butterfly plate axis hole again in sand removal, avoid due to sand removal
Vibration is to cause stress cracking.
The casting system and its manufacturing process of a kind of 5A cast steel dish plate proposed by the present invention, beneficial effect are: 5A casting
The casting system and its design and manufacture technology of steel dish plate are easy, suitable for all A995-5A material butterfly plates and the similar casting of structure
Part achieves good effect in actual production, and casting molding rear surface quality is good, and as-cast structure is outstanding, physical
Castings desire can be met.
Detailed description of the invention
Fig. 1 is a kind of structure top view of the casting system of 5A cast steel dish plate proposed by the present invention.
Fig. 2 is a kind of structure front view of the casting system of 5A cast steel dish plate proposed by the present invention.
Fig. 3 is a kind of schematic enlarged-scale view in the portion A of the casting system of 5A cast steel dish plate proposed by the present invention.
Fig. 4 is a kind of structure side view enlarged drawing of the riser of the casting system of 5A cast steel dish plate proposed by the present invention.
Fig. 5 is a kind of structure top perspective view of the riser of the casting system of 5A cast steel dish plate proposed by the present invention.
In figure: lower mold body 1, ventilation rods 2, frozen iron blocks 3, resin sand core 4, riser 5, cross gate 6, ingate 7, venthole
Seat 8, location hole 9, reinforcing rib 10, positioning column 11, upper mould body 12, upper impression 13, lower impressions 14, cylinder 15, iron hoop 16, riser
Seat 17, wearing layer 18, pressure-reducing pad 19.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-5, a kind of casting system of 5A cast steel dish plate, including lower mold body 1 and upper mould body 12, upper mold master
Body 12 and the size of lower mold body 1 are mutually matched, and multiple groups positioning mechanism is provided between upper mould body 12 and lower mold body 1, and
Multiple groups positioning mechanism layer annular spread, positioning mechanism include being provided with the location hole 9 of 1 upper end of lower mold body and being fixedly mounted on
The positioning column 11 of 12 lower end of upper mould body, positioning column 11 extend to the inside of location hole 9, and location hole 9 and 11 gap of positioning column
Cooperation enables to upper mould body 12 and lower mold body 1 during installation by the mutual cooperation of positioning column 11 and location hole 9
It is more quickly and stable, it can effectively improve the stability of device entirety.
The upper end uniform welding of upper mould body 12 has multiple cylinders 15, and the upper end of cylinder 15 is welded with iron hoop 16, iron hoop
16 can lift by crane upper mould body 12 using lifting appliance convenient for operator, so as to achieve the effect that demoulding.
13 interior lower end uniform welding of upper impression has multiple frozen iron blocks 3, and frozen iron blocks 3 are located at the lower end of vent 8, cold
Iron block 3 plays the effect of support to reinforcing rib 10, so that reinforcing rib 10 and vent 8 keep stable state.
The lower end compound sticking of lower mold body 1 has pressure-reducing pad 19, and pressure-reducing pad 19 enables to device in casting, plays anti-
The effect of sliding damping.
The inner surface of lower impressions 14 is plated with wearing layer 18, and wearing layer 18 is specially zinc-nickel alloy layer, admiro tool
Standby high temperature resistant, wear-resistant and etch-proof effect, and the use of device can be effectively extended convenient for the demoulding to casting
Service life.
1 upper center of lower mold body offers lower impressions 14, offers upper impression 13 in the middle part of the lower end of upper mould body 12, under
Type chamber 14 and the size of upper impression 13 are mutually matched, and the inside lower end level of upper impression 13 is welded with reinforcing rib 10, reinforcing rib 10
Upper end be fixed with vent 8, vent 8 and 13 clearance fit of upper impression, the upper end of vent 8, which is mounted on, to be run through
The ventilation rods 2 of vent 8, the upper end of ventilation rods 2 are mutually not in contact with each other with the inner top side of upper impression 13, and the two of upper mould body 12
Side lower end is mounted on the resin sand core 4 through upper mould body 12, and the other end of resin sand core 4 extends to the inside of upper impression 13
Upper end, it is the 1/3 of diameter that 4 center of resin sand core, which is emptied, and intensity is greater than water-glass sand to phenol resin sand after curing, is emptied immediately
1/3 can also guarantee its intensity, can be vented from 4 both ends of resin sand core in casting, reduce the heap of gas in resin sand core 4
Product reduces bleb, in view of phenol resin sand after high temperature good collapsibility performance, can not have in sand removal go cleaning butterfly again
The molding sand in board shaft hole avoids since sand removal shakes being to cause stress cracking.
14 side of lower impressions is equipped with multiple ingates 7 for passing through lower mold body 1, and the other end horizontal connection of ingate 7 has
Cross gate 6, cross gate 6 is interconnected by ingate 7 and lower impressions 14, and the sectional area of cross gate 6 is equal to ingate 7
Sectional area makes MOLTEN STEEL FLOW reduce the tendency that molten steel is involved in air to the impact power of running channel molding sand and reduction, ingate rapidly
Water inlet is placed on mould main body 1, and under the premise of or else influencing poring rate, width is less than the 2/3 of casting thickness, as far as possible will be into
The mouth of a river is designed long and narrow, and ingate direction is consistent with butterfly plate reinforcing rib direction, is prevented just turbulent in casting.
The upper center of cross gate 6 is equipped with riser seat 17, is equipped in the middle part of the interior survey of riser seat 17 through riser seat 17
Riser 5, and riser 5 and ingate 7 are interconnected, and the setting of riser 5 increases the exhaust performance of sand mo(u)ld entirety, the setting of riser 5
The postprocessing working procedures in non-processing face are reduced in machined surface, the design of riser seat 17 is in order to avoid casting cutting cracks extension
It is internal between,
The present invention also provides a kind of manufacturing process of the casting system of 5A cast steel dish plate, the specific steps are as follows:
The design of S1, cross gate 6, cross gate 6 are arranged at the spue line of upper mould body 12 and lower mold body 1, and cross gate 6
Sectional area is equal to the sectional area of ingate 7, so that MOLTEN STEEL FLOW is reduced molten steel rapidly to the impact power of running channel molding sand and reduces
It is involved in the tendency of air, ingate water inlet is placed on mould main body 1, and under the premise of or else influencing poring rate, width is less than casting
The 2/3 of part thickness, as far as possible by the long and narrow of the design of intake, ingate direction is consistent with butterfly plate reinforcing rib direction, prevents from pouring
It is just turbulent in note；
The design of S2, riser 5 determine that the height of riser seat 17 is riser 5 according to the modulus of casting, supplement weight, supplement distance
The 1/3-2/3 of height, minimum 30cm, the setting of riser 5 increase the exhaust performance of sand mo(u)ld entirety, and riser 5 is arranged in machined surface
Reduce the postprocessing working procedures in non-processing face, the design of riser seat 17 be cracked in order to avoid casting cutting extend between in
Portion；
The design of S3, the size of vent 8 and position, vent 8 is mainly on the reinforcing rib of butterfly plate casting, vent
8 diameters are the 2/3 of 10 thickness of butterfly plate reinforcing rib, are highly 1/2-1 times of butterfly plate thickness, and ventilation rods 2 are placed on vent 8
Permeation functions are had reached, can both guarantee the discharge of the rapid and gas of casting, be also possible to prevent the gas generated because of feeling suffocated
Hole and shrinkage cavity；
The design of S4,4 manufacture craft of resin sand core, resin sand core 4 make of alkaline phenol formaldehyde resinoid sand, 4 center of resin sand core
Emptying is the 1/3 of diameter, and intensity is greater than water-glass sand to phenol resin sand after curing, and emptying 1/3 immediately can also guarantee that it is strong
Degree, can be vented in casting from 4 both ends of resin sand core, reduce the accumulation of gas in resin sand core 4, reduce bleb, mirror
In phenol resin sand after high temperature good collapsibility performance, the molding sand for removing cleaning butterfly plate axis hole again can not be had in sand removal, is avoided
Since sand removal vibration is to cause stress cracking.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone 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 (7)
1. a kind of casting system of 5A cast steel dish plate, including lower mold body (1) and upper mould body (12), the upper mould body
(12) size with lower mold body (1) is mutually matched, which is characterized in that between the upper mould body (12) and lower mold body (1)
It is provided with multiple groups positioning mechanism, and multiple groups positioning mechanism layer annular spread, lower mold body (1) upper center offers mo(u)ld bottom half
The lower end middle part of chamber (14), the upper mould body (12) offers upper impression (13), the lower impressions (14) and upper impression (13)
Size be mutually matched, the inside lower end level of the upper impression (13) is welded with reinforcing rib (10), the reinforcing rib (10)
Upper end is fixed with vent (8), the vent (8) and upper impression (13) clearance fit, the vent (8) it is upper
End is mounted on ventilation rods (2) through vent (8), on the upper end of the ventilation rods (2) and the inside of upper impression (13)
End is mutually not in contact with each other, and the two sides lower end of the upper mould body (12) is mounted on the resin sand core (4) through upper mould body (12),
The other end of the resin sand core (4) extends to the inner top side of upper impression (13), and lower impressions (14) side is equipped with more
A ingate (7) for passing through lower mold body (1), the other end horizontal connection of the ingate (7) have cross gate (6), described horizontal to pour
Road (6) is interconnected by ingate (7) and lower impressions (14), and the upper center of the cross gate (6) is equipped with riser seat
(17), the riser (5) through riser seat (17), and riser (5) and ingate are installed in the middle part of the interior survey of the riser seat (17)
(7) it is interconnected.
2. a kind of casting system of 5A cast steel dish plate according to claim 1, which is characterized in that the positioning mechanism includes
It is provided with the location hole (9) of lower mold body (1) upper end and is fixedly mounted on the positioning column (11) of upper mould body (12) lower end, institute
State the inside that positioning column (11) extends to location hole (9), and location hole (9) and positioning column (11) clearance fit.
3. a kind of casting system of 5A cast steel dish plate according to claim 1, which is characterized in that the upper mould body (12)
Upper end uniform welding have multiple cylinders (15), the upper end of the cylinder (15) is welded with iron hoop (16).
4. a kind of casting system of 5A cast steel dish plate according to claim 1, which is characterized in that in the upper impression (13)
Subordinate end uniform welding has multiple frozen iron blocks (3), and frozen iron blocks (3) are located at the lower end of vent (8).
5. a kind of casting system of 5A cast steel dish plate according to claim 1, which is characterized in that the lower impressions (14)
Inner surface is plated with wearing layer (18), and wearing layer (18) is specially zinc-nickel alloy layer.
6. a kind of casting system of 5A cast steel dish plate according to claim 1, which is characterized in that the lower mold body (1)
Lower end compound sticking have pressure-reducing pad (19).
7. a kind of manufacturing process of the casting system of 5A cast steel dish plate described in -4 according to claim 1, which is characterized in that specific
Steps are as follows:
The design of S1, cross gate (6), cross gate (6) are arranged at the spue line of upper mould body (12) and lower mold body (1), and
The sectional area of cross gate (6) is equal to the sectional area of ingate (7), so that MOLTEN STEEL FLOW is reduced molten steel rapidly and rushes to running channel molding sand
It hits power and reduces the tendency for being involved in air, ingate water inlet is placed on mould main body (1), or else influences the premise of poring rate
Under, width is less than the 2/3 of casting thickness, as far as possible by the long and narrow of the design of intake, ingate direction and butterfly plate reinforcing rib side
To consistent, just turbulent flow is prevented in casting；
The design of S2, riser (5) determine that the height of riser seat (17) is according to the modulus of casting, supplement weight, supplement distance
The 1/3-2/3 of riser (5) height, minimum 30cm, the setting of riser (5) increase the exhaust performance of sand mo(u)ld entirety, and riser (5) is set
It sets and reduces the postprocessing working procedures in non-processing face in machined surface, the design of riser seat (17) is in order to avoid casting cutting cracks
It is internal between extending to；
The design of S3, the size of vent (8) and position, vent (8) mainly on the reinforcing rib of butterfly plate casting, are ventilated
Hole seat (8) diameter is the 2/3 of butterfly plate reinforcing rib (10) thickness, is highly 1/2-1 times of butterfly plate thickness, puts on vent (8)
It sets ventilation rods (2) and has reached permeation functions, can both guarantee the discharge of the rapid and gas of casting, be also possible to prevent because feeling suffocated
And the stomata generated and shrinkage cavity；
The design of S4, resin sand core (4) manufacture craft, resin sand core (4) make of alkaline phenol formaldehyde resinoid sand, resin sand core
(4) it is the 1/3 of diameter that center, which is emptied, and intensity is greater than water-glass sand to phenol resin sand after curing, and emptying 1/3 immediately can also protect
Its intensity is demonstrate,proved, can be vented from resin sand core (4) both ends in casting, the accumulation of resin sand core (4) interior gas is reduced, reduces casting
Part stomata, in view of phenol resin sand after high temperature good collapsibility performance, can not have in sand removal remove cleaning butterfly plate axis hole again
Molding sand avoids since sand removal shakes being to cause stress cracking.
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| CN201910320690 | 2019-04-20 | ||
| CN2019103206901 | 2019-04-20 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110593491A (en) * | 2019-10-18 | 2019-12-20 | 湖北亚钢金属制造有限公司 | Multi-positioning reinforced grouting sleeve and casting and pouring method |
| CN112606302A (en) * | 2020-12-05 | 2021-04-06 | 梁佳鹏 | Lossless demolding device for polytetrafluoroethylene disc plate |
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| US20130025811A1 (en) * | 2011-07-29 | 2013-01-31 | Nibouar F Andrew | Rigging system for casting railcar coupler parts |
| KR101365021B1 (en) * | 2013-07-25 | 2014-03-10 | 주식회사 세연에스씨에스 | A mold for gravity pressure casting |
| CN206702165U (en) * | 2017-05-05 | 2017-12-05 | 浙江坤博机械制造有限公司 | A kind of diaphragm valve casting die peculiar to vessel |
| CN208341651U (en) * | 2018-06-24 | 2019-01-08 | 福建大通互惠精密铸造有限公司 | A kind of novel pouring technique cast steel dish plate |
| CN208495720U (en) * | 2018-07-10 | 2019-02-15 | 天津源远精密机械有限公司 | A kind of combination die for brake disc casting |
| CN210877423U (en) * | 2019-04-20 | 2020-06-30 | 福建大通互惠精密铸造有限公司 | Casting system of 5A cast steel dish board |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110593491A (en) * | 2019-10-18 | 2019-12-20 | 湖北亚钢金属制造有限公司 | Multi-positioning reinforced grouting sleeve and casting and pouring method |
| CN112606302A (en) * | 2020-12-05 | 2021-04-06 | 梁佳鹏 | Lossless demolding device for polytetrafluoroethylene disc plate |
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