CN206811081U - The lost foam casting system of high-chromium wear-resistant casting - Google Patents
The lost foam casting system of high-chromium wear-resistant casting Download PDFInfo
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- CN206811081U CN206811081U CN201720515534.7U CN201720515534U CN206811081U CN 206811081 U CN206811081 U CN 206811081U CN 201720515534 U CN201720515534 U CN 201720515534U CN 206811081 U CN206811081 U CN 206811081U
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- drying chamber
- casting
- sandbox
- foam
- heating wire
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Abstract
The utility model discloses that a kind of air pollution is less, the lost foam casting system for the high-chromium wear-resistant casting that casting quality is higher and cost is lower.The lost foam casting system of high-chromium wear-resistant casting of the present utility model includes Standard Module, electric heating wire cutting device, drying chamber, sandbox and pouring device；Standard Module includes main body and upper lid, and die cavity is provided with main body, and die cavity is adapted with the casting to be cast, the upper entrance for covering the die cavity for being arranged at main body；Electric heating wire cutting device includes operating desk, support bar, heating wire, reducing motor, rotary shaft and fixed mount；The wall of drying chamber is double-layer metal plate wall, and electric heater and model support are provided with drying chamber, and drying chamber top is provided with exhausting window, and the openings of sizes of exhausting window is adjustable, and scavenger fan is additionally provided with drying chamber；The sandbox bottom is provided with plain bumper, and plastic sheeting sealing is covered in sandbox mouth covered with asbestos cloth, on asbestos cloth, and sandbox is connected with vacuum extractor.
Description
Technical field
A kind of casting system is the utility model is related to, more particularly to a kind of lost foam casting system of high-chromium wear-resistant casting.
Background technology
Rich chromium cast iron, refer generally to amount containing Cr between 11-30%, white cast-iron of the C content between 2.0-3.6% closes
Gold.It has wearability more more preferable than steel alloy, toughness more more preferable than general white cast-iron and intensity, while it also has well
High temperature resistant property and corrosion resistance, produce convenient, moderate cost in addition, and be described as the present age most excellent abrasive wear resistant weld deposit
One of material.
Traditional lost foam casting is to bond the paraffin similar to casting dimension shape or bubbles model to be combined into model
Cluster, after brushing fireproof coating and drying, vibration molding in drystone sand is embedded in, is poured into a mould under negative pressure, model is gasified, liquid gold
Category occupies modal position, and casting is formed after solidification cooling.
However, traditional lost foam casting system, air pollution is serious, and cast(ing) surface is coarse, and follow-up workload of polishing is big,
Cost is high.
Utility model content
The technical problems to be solved in the utility model is to provide that a kind of air pollution is less, casting quality is higher and cost
The lost foam casting system of lower high-chromium wear-resistant casting.
In order to solve the above-mentioned technical problem, the lost foam casting system of high-chromium wear-resistant casting of the present utility model, including mark
Quasi-mode tool, electric heating wire cutting device, drying chamber, sandbox and pouring device；The Standard Module includes main body and upper lid, the master
Die cavity is provided with vivo, the die cavity is adapted with the casting to be cast, and the upper lid is arranged at the die cavity of the main body
Entrance；The electric heating wire cutting device includes operating desk, support bar, heating wire, reducing motor, rotary shaft and model fixed mount,
The support bar is fixed on the operating desk vertically respectively, and the heating wire both ends are individually fixed in the support bar and level
Stretch, the reducing motor is fixed on the operating desk, and the rotary shaft is connected in the rotating shaft of the motor, the model
Fixed mount is fixed on the rotary shaft top；The wall of the drying chamber is double-layer metal plate wall, is set in the drying chamber
There are electric heater and model support, the drying chamber top is provided with exhausting window, and the openings of sizes of the exhausting window is adjustable, the baking
Scavenger fan is additionally provided with dry chamber；The sandbox bottom is provided with plain bumper, in sandbox mouth covered with asbestos cloth, on asbestos cloth
Plastic covering diaphragm seal, sandbox are connected with vacuum extractor.
Also include sand preparation plant；The sand preparation plant includes feed hopper, air delivery pipe, discharge bucket, air blower, filter
Net, dust shield, induced-draught fan, tank, foam generator and vibratory sieve；The air delivery pipe is horizontally disposed with, and the feed hopper is set
In the upside of described air delivery pipe one end, the discharging opening of air delivery pipe is arranged at the downside of the other end and connects the discharge bucket；
The vibratory sieve is arranged at below discharge bucket；The air blower is uniformly connected to the wind with same intervals by multiple ajutages
The lower wall of pipe is sent, the filter screen is arranged at the upper side wall of the air delivery pipe, and the air inlet of the induced-draught fan passes through the suction
Dust hood is connected on the filter screen, and the air outlet of the induced-draught fan is connected to underwater in the tank, institute by dust sucting pipeline
State foam generator to be arranged at the water surface of the tank, the water surface of foam covering tank caused by the foam generator.
Also include exhaust gas processing device；The exhaust gas processing device include air inlet pipe, water tank, foam maker, collecting hood,
Breather line, storage box and activated carbon, the gas outlet of the air inlet pipe are connected to the water tank cavity bottom, and the foam occurs
Device is arranged at the water tank cavity top, and the collecting hood is sealedly connected in the tank top opening, the breather line
With being connected at the top of the collecting hood, described storage box one end is provided with air inlet and the other end is provided with gas outlet, described logical
Feed channel is connected with the air inlet of the storage box, and the activated carbon is placed in the storage box, and the storage box is provided with
Sealed container door, the storage box have been arranged in series 2-5.
The utility model has the advantages that：
1st, foamed model is compared by Standard Module, the more people of a Standard Module use, and can not only improve mark
The utilization rate of quasi-mode tool, reduces cost, and make the making of foamed mould more accurate.
2nd, foamed model is processed automatically by electric heating wire cutting device, it is more laborsaving, more accurate.
3rd, drying chamber sets double-layer metal plate wall be more incubated, be firmer；Drying chamber top sets exhausting window, convenient row
It is wet；Scavenger fan is set in drying chamber, taken a breath rapider.
4th, first cover asbestos cloth plastic covering diaphragm seal again at the top of sandbox, asbestos cloth can it is heat-insulated to plastic sheeting and
Plastic sheeting is protected, avoids plastic sheeting from burning out gas leakage, and asbestos cloth is more soft, is easy to sandbox to combine plastics when vacuumizing
The tightly compacted dry sand of film.
5th, dry sand is transmitted by air delivery pipe, dry and airborne dust, equipment more simplify, machine cost is lower, work
It is more efficient；Carry out strainer filtering successively to airborne dust, induced-draught fan absorbs and the processing of foam dust elimination, airborne dust handle more efficient, more ring
Protect；Particle filter is carried out to dry sand by vibratory sieve and friction cleans so that the purity of dry sand is higher, dry sand water imbibition more
It is low；Dust caused by vibratory sieve is absorbed and foam dust elimination is handled, it is possible to reduce air pollution.
6th, foam dedusting is carried out to vacuumizing caused tail gas, the activated carbon for then passing through 2-5 levels absorbs tail gas so that row
The dust and pernicious gas gone out in tail gas is less, more environmentally friendly.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the sand preparation plant in the utility model.
Fig. 3 is the exhaust gas processing device in the utility model.
In figure：1- pouring devices, 2- plastic sheetings, 3- asbestos cloths, 4- sandboxes, 5- vacuum extractors, 6- plain bumpers, 7- water
Groove, 8- foam generators, 9- vibratory sieves, 10- discharge buckets, 11- air delivery pipes, 12- filter screens, 13- dust shields, 14- dust sucting pipelines,
15- induced-draught fans, 16- feed hoppers, 17- air blowers, 18- ajutages, 19- air inlet pipe, 20- water tanks, 21- foam makers, 22- are received
Collection cover, 23- activated carbons, 24- storage boxes, 25- breather lines.
Embodiment
The utility model is described in detail with reference to the accompanying drawings and detailed description：
As shown in figure 1, the lost foam casting system of high-chromium wear-resistant casting of the present utility model, including：Standard Module, electric heating
Wire cutting device, drying chamber, sandbox, plain bumper, vacuum extractor and pouring device.
Standard Module includes main body and upper lid, and die cavity is provided with main body, and die cavity is adapted with the casting to be cast, on
Lid is arranged at the entrance of the die cavity of main body.Standard Module is the metal die that foamed model is made for foamed bead foam.
, will be foamed by being cut to foamed plate and after gluing combines, makes the foamed model close with casting dimension and shape
The die cavity that model is put into Standard Module is compared, and checks unmatched region, then by electric heating wire cutting device to foamed
Model is processed amendment, until foamed model is adapted with the die cavity of Standard Module.
Electric heating wire cutting device includes operating desk, support bar, heating wire, reducing motor, rotary shaft and model fixed mount, branch
Strut is fixed on operating desk vertically respectively, and heating wire both ends are individually fixed in support bar and level stretches, and reducing motor is fixed
In on operating desk, rotary shaft is connected in the rotating shaft of motor, and model fixed mount is fixed on rotary shaft top, and model fixed mount is used for
Fixed foamed model.Drive foamed model mobile to be cut by heating wire by motor, operate, make foamed without man-hour manually hand-held
Mould processing is more accurate, more laborsaving, more convenient.
The wall of drying chamber is double-layer metal plate wall, and heat insulation and preservation effect is more preferable.Be provided with drying chamber electric heater and
Model support.It is both needed to be toasted into drying chamber after foamed model is repaiied and completes and be coated with coating, fully drying bubble
The volatilizable gas in the glue at moisture and the foamed model gluing that fully volatilizees inside and outside moulding model.Drying chamber top is set
There is exhausting window, exhausting window is used for hydrofuge and air flow, and the openings of sizes of exhausting window is adjustable, is needed and temperature adjustment demand according to hydrofuge
Exhausting window openings of sizes is adjusted, accelerates moisture discharge, accelerates temperature adjustment.Foamed model needs repeatedly to be coated with coating and repeatedly dried
It is roasting, to improve the thickness of coating, hardness and aridity.Baking is taken a breath with scavenger fan again.Ventilation is provided with drying chamber
Fan, start scavenger fan and the hot-air in drying chamber is blown out into outdoor, outdoor cold air automatically into drying chamber, so as to
Taken a breath, scavenging efficiency is high.The constituent of air in drying chamber can be adjusted by ventilation, reduces volatile matter in room air
Concentration, it is easy to the volatilizable thing in model cluster further to volatilize, so as to improve baking efficiency and baking of the drying chamber to model cluster
Effect.
Sandbox bottom is provided with plain bumper, and the model cluster for completing to be coated with coating is put into sandbox, on model cluster bottom, top
The peripheral regions such as portion, sidepiece insert dry sand and by plain bumper jolt rammings.After jolt ramming dry sand, in the dry sand overlying coping stone cotton of sandbox mouth
Cloth, plastic sheeting sealing is covered on asbestos cloth.Sprue cup is put to be used to cast.Sandbox is connected with vacuum extractor, in sandbox
Dry sand vacuumize, make plastic sheeting and asbestos cloth be close to dry sand at the top of sandbox, make the further consolidation of dry sand, completion is buried case and made
Type process.
Pouring device pours rich chromium cast iron molten metal as in sandbox from sprue cup.In casting, protected by vacuum extractor
To hold and sandbox is vacuumized, pouring device carries out rich chromium cast iron molten metal casting under sandbox negative pressure state, and model cluster is heated to be vaporized,
Molten metal substitution model cluster position, complete casting displacement process.It is finally knockout pickup, after casting cooling, discharges vacuum, mould turnover
Dry sand is poured out, takes out casting.
As shown in Fig. 2 also include sand preparation plant.Sand preparation plant includes feed hopper, air delivery pipe, discharge bucket, air blast
Machine, filter screen, dust shield, induced-draught fan, tank, foam generator and vibratory sieve.Air delivery pipe is horizontally disposed with, and feed hopper is arranged at wind
The upside of pipeline one end is sent, the discharging opening of air delivery pipe is arranged at the downside of the other end and connects discharge bucket.Air blower passes through more
Individual ajutage is uniformly connected to the lower wall that wind send pipe with same intervals, is stirred by the air-flow of air blower dry in air delivery pipe
Sand, make dry sand obtain wind give, airborne dust and drying.Filter screen is arranged at the upper side wall of air delivery pipe, and filter screen stops big in airborne dust
Grain dry sand is to avoid dry sand from being siphoned away by induced-draught fan.The air inlet of induced-draught fan is connected on filter screen by dust shield, passes through dust shield
Airborne dust is absorbed, inhalation area is bigger.The air outlet of dust absorption fan is by underwater in dust sucting pipeline connection screw clamp, under water in advance
Precipitate the larger airborne dust of particle.Foam generator is arranged at the water surface of tank, and foam caused by foam generator covers tank
The water surface.Foam generator sprays air-water mixture into water to produce foam by multiple tiny spray orifices, and foam constantly disappears
Produced with continuous.The air containing airborne dust that the foam of foam generator can rise to bubbling further filters, and foam generator
The air-water mixture of ejection can impact the caused big bubble in water of air containing airborne dust, make air pocket decompose to obtain smaller water
Bubble, is easy to the air containing airborne dust fully to be contacted with water and thoroughly filter airborne dust.The dry sand that discharge bucket exports air supply duct transmits
To vibratory sieve.Vibratory sieve is arranged at below discharge bucket, and vibratory sieve carries out particle filter to dry sand and friction cleans, and more thoroughly goes
Except mixed fireproof coating in dry sand, the grey bits of rich chromium cast iron, foamed mould ashes etc., the purity of dry sand is improved.Dust suction wind simultaneously
Machine also absorbs to dust caused by vibratory sieve, is then delivered to tank and carries out foam dust elimination processing.
As shown in figure 3, also include exhaust gas processing device.Exhaust gas processing device include air inlet pipe, water tank, foam maker,
Collecting hood, breather line, storage box and activated carbon.The vacuum extractor of the air inlet connection sandbox of air inlet pipe.Sandbox is to produce
The region of Tail Gas most serious.The gas outlet of air inlet pipe is connected to water tank cavity bottom, bottom tail gas being passed through in water tank
Filtered first.Foam maker is arranged at water tank cavity top, be stored with foam maker foam occur liquid, pass through to
Foam occurs liquid and blown, and constantly produces the foam coverage water surface, makes up the foam of disappearance.Collecting hood is sealedly connected on tank top and opened
On mouth, breather line at the top of collecting hood with connecting.Storage box one end is provided with air inlet and the other end is provided with gas outlet, deposits
The air inlet of storage tank connects with breather line.Activated carbon is placed in storage box, and storage box is provided with sealed container door, storage box string
Connection is provided with 2-5.By water tank water and the water surface foamed filter tail gas, pass through collecting hood and breather line and enter storage
Case.Activated carbon in storage box absorbs the pernicious gas in waste gas.Activated carbon by 2-5 levels absorbs pernicious gas so that tail
More cleaned after gas discharge.The sealed container door of storage box is opened, activated carbon can be regularly replaced.Regularly replace the activity in storage box
Charcoal, to improve absorptivity of the activated carbon to pernicious gas, the cleannes of discharge gas are improved, reduce tail gas pollution.
Wherein, Standard Module is arranged on electric heating wire cutting device, and electric heating wire cutting device is arranged at drying chamber side, sand
Case is arranged at drying chamber opposite side, and pouring device is arranged above sandbox, exhaust gas processing device connection sandbox sidepiece, sandbox knockout
During pickup, dry sand is poured on down in sand launder, dry sand is sent to sand preparation plant by sand launder by conveyer belt.
Claims (3)
1. a kind of lost foam casting system of high-chromium wear-resistant casting, it is characterised in that including Standard Module, heating wire cutting dress
Put, drying chamber, sandbox and pouring device；
The Standard Module includes main body and upper lid, and die cavity, the die cavity and the casting to be cast are provided with the main body
It is adapted, the upper entrance for covering the die cavity for being arranged at the main body；
The electric heating wire cutting device includes operating desk, support bar, heating wire, reducing motor, rotary shaft and model fixed mount, institute
State support bar to be fixed on vertically on the operating desk respectively, the heating wire both ends are individually fixed in the support bar and horizontal drawing
Directly, the reducing motor is fixed on the operating desk, and the rotary shaft is connected in the rotating shaft of the motor, and the model is consolidated
Determine frame and be fixed on the rotary shaft top；
The wall of the drying chamber is double-layer metal plate wall, and electric heater and model support are provided with the drying chamber, described
Drying chamber top is provided with exhausting window, and the openings of sizes of the exhausting window is adjustable, and scavenger fan is additionally provided with the drying chamber；
The sandbox bottom is provided with plain bumper, and plastic sheeting sealing, sand are covered in sandbox mouth covered with asbestos cloth, on asbestos cloth
Case is connected with vacuum extractor.
2. the lost foam casting system of high-chromium wear-resistant casting according to claim 1, it is characterised in that also including sand processing
Device；The sand preparation plant include feed hopper, air delivery pipe, discharge bucket, air blower, filter screen, dust shield, induced-draught fan, tank,
Foam generator and vibratory sieve；The air delivery pipe is horizontally disposed with, and the feed hopper is arranged at the upper of described air delivery pipe one end
Side, the discharging opening of air delivery pipe are arranged at the downside of the other end and connect the discharge bucket；The vibratory sieve is arranged at discharge bucket
Lower section；The air blower is uniformly connected to the lower wall that the wind send pipe, the filter screen by multiple ajutages with same intervals
The upper side wall of the air delivery pipe is arranged at, the air inlet of the induced-draught fan is connected on the filter screen by the dust shield,
The air outlet of the induced-draught fan is connected to underwater in the tank by dust sucting pipeline, and the foam generator is arranged at described
At the water surface of tank, the water surface of foam covering tank caused by the foam generator.
3. the lost foam casting system of high-chromium wear-resistant casting according to claim 1, it is characterised in that at also including tail gas
Manage device；The exhaust gas processing device includes air inlet pipe, water tank, foam maker, collecting hood, breather line, storage box and work
Property charcoal, the gas outlet of the air inlet pipe are connected to the water tank cavity bottom, and the foam maker is arranged in the water tank
Chamber top, the collecting hood are sealedly connected in the tank top opening, and the breather line at the top of the collecting hood with connecting
Logical, described storage box one end is provided with air inlet and the other end is provided with gas outlet, the breather line and the storage box
Air inlet connection, the activated carbon is placed in the storage box, and the storage box is provided with sealed container door, the storage box
It has been arranged in series 2-5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720515534.7U CN206811081U (en) | 2017-05-10 | 2017-05-10 | The lost foam casting system of high-chromium wear-resistant casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720515534.7U CN206811081U (en) | 2017-05-10 | 2017-05-10 | The lost foam casting system of high-chromium wear-resistant casting |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206811081U true CN206811081U (en) | 2017-12-29 |
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ID=60755570
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720515534.7U Expired - Fee Related CN206811081U (en) | 2017-05-10 | 2017-05-10 | The lost foam casting system of high-chromium wear-resistant casting |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206811081U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024823A (en) * | 2020-08-26 | 2020-12-04 | 东风汽车有限公司 | Dark exhaust structure, pouring system and casting method of large casting |
| CN114558996A (en) * | 2022-02-28 | 2022-05-31 | 福建新佳鑫实业有限公司 | Casting auxiliary assembly of lost foam casting equipment |
-
2017
- 2017-05-10 CN CN201720515534.7U patent/CN206811081U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112024823A (en) * | 2020-08-26 | 2020-12-04 | 东风汽车有限公司 | Dark exhaust structure, pouring system and casting method of large casting |
| CN114558996A (en) * | 2022-02-28 | 2022-05-31 | 福建新佳鑫实业有限公司 | Casting auxiliary assembly of lost foam casting equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171229 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |