CN205834112U - Shell mould sintering equipment - Google Patents

Abstract

For solving the deficiencies in the prior art, this utility model provides a kind of shell mould sintering equipment, and this device includes: shell mould placement platform, heater, air-blast device, air draft flue, control system, sintering inner chamber and closing door；Wherein control system controls heater based on this utility model shell mould sintering method, air-blast device, air draft flue realize the sintering operation of shell mould.Use sintering method of the present utility model and device can put forward high-quality stability, improve production efficiency, reduce production cost.

Description

Shell mould sintering equipment

Technical field

This utility model relates to precision casting process, particularly to a kind of shell mould sintering equipment.

Background technology

Hot investment casting is a kind of casting method for conventional casting techniques, and it is obtained in that relatively accurate shape Shape and higher casting accuracy.The technical process of hot investment casting is: first, makes the product of wax-pattern, this wax-pattern and required casting Size shape is consistent；Then, pottery shell is formed at made wax pattern surface；Subsequently, described pottery shell carries out dewaxing treatment (will Remove after its internal wax-pattern fusing)；Afterwards, pottery shell is at high temperature sintered；Finally, casting metal material in the pottery shell after sintering Material, after metal material cooled and solidified, the described pottery shell of broken removal, the foundry goods obtained is required product.

In above-mentioned technical process, the making of pottery shell is most important, and its quality determines the quality of foundry goods.Mesh Before, pottery shell makes the method generally used and is: shell moulding, and specifically frequently with aqueous silica sol shell process, the method is in system When making pottery shell, be to use refractory material to prepare different slurries and sand, one layer of sand of one layer of slurry the most from level to level be accumulated in wax-pattern Surface, makes the pottery shell of required thickness.Then, prepared pottery shell is dried, dewaxes and puts into sintering machine in 900～1400 High temperature sintering at DEG C.Owing to sintering is that shell molding makees a requisite step link, therefore, the quality of sintering directly influences shell Mould quality, and the quality of final casting.

Prior art generally uses flatbed sintering furnace or tunnel type sintering furnace to carry out the sintering work of shell mould, sintering process In be directly warming up to shell mould sintering temperature be sintered operation.Both differences are: flatbed sintering furnace, according to whether be equipped with Air chimney is divided into again closed platforms type sintering furnace as Figure 1-1, and its sintering process is: first by the shell mould after dewaxing The downward back-off of cup, on the platform of sintering furnace inner chamber 1, is then shut off closing door 3 control system 4 simultaneously and controls heater 2 Heating sintering furnace inner chamber 1 until the temperature of sintering furnace inner chamber 1 reaches shell mould sintering temperature, control system 4 controls heating Device maintains the temperature of sintering furnace inner chamber 1, and shell mould is sintered operation, and omnidistance sintering furnace inner chamber 1 is approximately at closed state； And convection type flatbed sintering furnace as shown in Figure 1-2, its sintering process is: first will dewaxing after shell mould cup to Lower back-off, on the platform of sintering furnace inner chamber 1, is then shut off closing door 4 control system 5 simultaneously and controls heater 2 to sintering furnace Inner chamber 1 carries out heating until the temperature of sintering furnace inner chamber 1 reaches shell mould sintering temperature, and control system 5 controls heater and maintains The temperature of sintering furnace inner chamber 1, is sintered operation to shell mould, has unlimited convection pass 3 owing to sintering furnace inner chamber 1 connects, because of This sintering process whole process is in thermal convection current state.

Existing tunnel type sintering furnace, as in figure 2 it is shown, its sintering process is: the shell mould after dewaxing, the downward back-off of its cup On a flat bogie 3, flat bogie 3 is pushed in sintering furnace inner chamber 1, close closing door 4 control system 5 simultaneously and start heating Sintering furnace inner chamber 1 is heated by device 2 until the temperature of sintering furnace inner chamber 1 reaches shell mould sintering temperature, and control system 5 controls Heater maintains the temperature of sintering furnace inner chamber 1, shell mould is sintered operation, leads owing to being equipped with below sintering furnace inner chamber 1 Rail, therefore can not completely enclose, because causing sintering process whole process to be in thermal convection current state.

The purpose of cup back-off is needed to be to prevent generation in shell mould sintering process during existing sintering furnace sinterskin mould Grog falls in shell mould, the casting quality that the final cast of impact prepares.

Existing sintering method and device is used to there is problems in that

1. use flatbed sintering furnace sintering to prepare shell mould, would generally be with husky hole on the foundry goods prepared after pour steel.

2. use closed platforms type sintering furnace sintering prepare shell mould, often exist during casting pouring molten steel molten steel to The phenomenon of outer splash so that the danger coefficient of casting process increases；Additionally, often because there is penetrating property gas in the foundry goods prepared Hole and scrap.

3. use convection type flatbed sintering furnace and tunnel type sintering furnace, decarburization phenomenon often occurs when the foundry goods demoulding And surface corrosion phenomenon occurs on foundry goods.

4. as used flatbed sintering furnace to produce continuously, then use the 2nd stove and the shell mould pour steel sintered afterwards The foundry goods prepared, it will usually there is ash limit i.e. burr or convex water wave, or the most recessed water of chicken feet stricture of vagina of scrobicula round bottom occurs Stricture of vagina.

The problems referred to above, all can cause casting quality unstable, thus cause foundry goods substandard products, percent defective high, existing solution Method is typically to carry out substandard products further polish to reach the casting accuracy needed, and waste product is circulated recycling. Although existing solution to a certain degree compensate for casting quality problem, but, existing solution seriously reduces life Produce efficiency, improve production cost and be difficult to the sufficiently high foundry goods of production department's precision.

Summary of the invention

For solving the problems referred to above, the purpose of this utility model there are provided a kind of new shell mould sintering equipment, this device Including shell mould placement platform, heater, air-blast device, air draft flue, control system, sintering inner chamber and closing door；Wherein, treat Sinterskin mould cup back-off is positioned on shell mould placement platform；Intracavity in sintering it is loaded in shell mould placement platform；Closing door can To be turned on and off sintering inner chamber；Heater can carry out heating operation to sintering inner chamber；Position, air-blast device air inlet one end Outside sintering equipment, air outlet one end is positioned at sintering intracavity；Air draft flue is built with switching device, and its air inlet one end is positioned at Intracavity in sintering, air outlet one end is positioned at outside sintering equipment；Control system includes temperature sense module and control module, Qi Zhongwen Degree induction module be installed on sintering in intracavity, can with in induction sintering intracavity ambient temperature and to control module feedback temperature number According to, control module is connected with the switching device in heater, air-blast device and air draft flue respectively, can be according to default program Control being turned on and off of heater, air-blast device and air draft flue；

Further, described shell mould placement platform can be fixedly installed in sintering in intracavity or with sintering inner chamber active link.

Further, in described air-blast device and air draft flue can make sintering, intracavity forms sinuous flow air-flow and the wind-force of sinuous flow Intensity is not enough to be blown in shell mould grog.

Further, being also equipped with the device B that opens the light in the blast channel of air-blast device, this device can be turned on and off air blast Passage.

Preferably, the switching device B in described air-blast device be installed on air-blast device be positioned at sintering inner chamber cavity wall on going out Outside air port.

Preferably, the switching device in described air draft flue is installed on the air intake that air draft flue is positioned in sintering inner chamber cavity wall Outside Kou.

Further, described control system also includes oxygen concentration monitoring modular, and one end of this module is connected into sintering inner chamber, can With the real-time oxygen concentration in monitoring sintering inner chamber；The other end is connected with control module, can be by the real-time oxygen concentration in sintering inner chamber Feed back to control module；Control module controls the output of air-blast device according to the oxygen concentration obtained.

Further, described shell mould placement platform is placed and is carried fluted on the end face of shell mould, and recess width can allow shell The grog produced during mould sintering falls in groove and will not cause self landing of shell mould, to groove, shell mould tilt phenomenon can occur.

It is further, described that by air-blast device and air draft flue, in sintering, the sinuous flow air-flow of intracavity formation can be along recessed Groove enters inside shell mould at the cup of shell mould.

Preferably, such as shell mould only one of which cup, then sinuous flow air-flow can be internally formed convection current at shell mould；As shell mould has many Individual cup, then sinuous flow air-flow can be internally formed circulation at shell mould.

Preferably, shell mould placement platform being placed or be provided with a detachable or flat board for replacement, shell mould is positioned over flat board On end face, the end face of flat board placement shell mould carrying fluted, the grog produced when recess width can allow shell mould sinter falls into Groove is interior and will not cause self landing of shell mould, to groove, shell mould tilt phenomenon can occur.

Preferably, described flat board is combined flat plate, and flat board entirety is formed by polylith minor structure flat sheet combination.

Further, described groove is obtained by wavy end face, and now, the cup wall of cup back-off of shell mould to be sintered is put It is placed in the crest location of wavy end face.

Preferably, its crest height of wave 3～10cm of the wave structure of wavy end face.

Further, described air draft flue being also equipped with shaking device and cleaning door, described shaking device can be by air draft cigarette On road inwall, the flue dust of attachment shakes off the cleaning door to flue.

Preferably, described shaking device includes: vibration motor, driving means and control device.Wherein, vibration motor is movable It is installed on exhaust uptake lateral wall；Control device to be connected with vibration motor, being turned on and off of vibration motor can be controlled, with Time can control vibration motor by driving means and move along the lateral wall of exhaust uptake.

Preferably, described driving means includes driving motor and tracks, controls device and is connected with driving motor, permissible Move by driving motor to control vibration motor tracks along exhaust uptake lateral wall according to pre-set programs.

The work process of this utility model shell mould sintering equipment is:

A. after putting into shell mould to be sintered on shell mould placement platform, starter, control device and control heater, air blast Device and air draft flue are opened；

When interior cavity temperature the most to be sintered reaches first stage design temperature, control being turned on and off of heater, with dimension In holding sintering, cavity temperature is in the range of first stage design temperature, and the shape according to shell mould of holding time and complexity set in advance Fixed；

C. close air-blast device and air draft flue, open heater simultaneously, continue heating until second stage sets temperature Degree；

D. being turned on and off of heater is controlled, with cavity temperature in maintaining sintering in second stage design temperature scope In, the shape according to shell mould of holding time and complexity preset.

Preferably, described first stage design temperature can be 600 DEG C～800 DEG C.

Described first stage design temperature scope is that pattern wax ignition temperature is to carbon dust ignition temperature.

Preferably, the temperature range that the described first stage sets can be 600 DEG C～800 DEG C.

Preferably, described second stage design temperature can be 1200 DEG C～1400 DEG C.

Described second stage design temperature is shell mould sintering temperature, and the temperature range that second stage sets can be that shell mould burns Junction temperature ± 100 DEG C.

Preferably, the temperature range that described second stage sets can be 1200 DEG C～1400 DEG C.

Shell mould sintering equipment described in the utility model has the advantage that

1. when carrying out pouring molten steel with shell mould sintering equipment described in the utility model made shell mould, there's almost no molten steel to The phenomenon of outer splash, prepared foundry goods also there's almost no penetrating property pore.

2., when carrying out pouring molten steel with shell mould sintering equipment described in the utility model made shell mould, produce die wall hardly Reaction, improves the precision of foundry goods.

Shell mould sintering equipment the most described in the utility model can carry out the continuous prodution of shell mould, and exists hardly even Continuous production process medium casting produces convex water wave or the problem of recessed water wave.

4. the foundry goods prepared with the cast of shell mould sintering equipment described in the utility model made shell mould, there's almost no husky hole.

5. pour into a mould, with shell mould sintering method described in the utility model and device made shell mould, the casting quality prepared stable, secondary Product, defective goods rate are low and production efficiency is far above existing sintering method and device.

Accompanying drawing explanation

Fig. 1-1 is existing closed platforms type sintering furnace；

Fig. 1-2 is existing convection type flatbed sintering furnace；

Fig. 2 is existing tunnel type sintering furnace；

Fig. 3 is this utility model sintering equipment structural representation；

Fig. 4 is the sintering inner-cavity structure figure of this utility model sintering equipment；

Fig. 5 is that this utility model combination type waveform sinters slab construction schematic diagram.

Detailed description of the invention

In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with accompanying drawing, to this reality Use novel further description.Should be appreciated that specific embodiment described herein only in order to explain this utility model, and It is not used in restriction this utility model.

Inventor is through finding the research of prior art, and existing sintering method and sintering equipment can produce the problems referred to above Reason is respectively:

1. use existing closed platforms type sintering furnace can produce molten steel when sintering the shell mould pour steel prepared outwards to spray Occur in the phenomenon spattered and foundry goods that the reason of penetrating property pore is: existing sintering method is heat-agglomerating stove to shell mould Sintering temperature also keeps a period of time until shell mould has sintered, and the temperature of the sintering of shell mould is usually 1200～1400 DEG C；So Back cover mould tends not to remove totally the wax used when making shell mould completely (heat shell mould, treat that wax is molten before putting into sintering furnace After change, wax is poured out), when particularly shell mould is relatively big or constructs complicated, now, the wax removed the most completely is under high-temperature low-oxygen environment By direct carbonization, thus it is attached to inside shell mould with the form of carbon residue.When toward pour steel in shell mould, the carbon residue in shell mould because of The high temperature of molten steel and the combustion reaction rapidly of the air of Mo Nei form CO gases at high pressure, will not react between CO and molten steel, by Close and high-strength with the internal layer matter of steel contacts in shell mould, therefore CO gases at high pressure can only inversely outer be arranged, and from causing molten steel outside Splash, the CO gas of residual also can form penetrating property pore on foundry goods.

2. use the shell mould that convection type flatbed sintering furnace and tunnel type sintering furnace sintering prepare often in the foundry goods demoulding Shi Fasheng decarburization phenomenon and occur that on foundry goods the reason of surface corrosion phenomenon is: in order to prevent in the manufacturing process of shell mould Die wall reaction and the breathability of raising shell mould, the most all can add carbon dust；But due to convection type flatbed sintering furnace and tunnel Its sintering environment of channel type sintering furnace is semiclosed environment, and oxygen content is the highest, and the carbon dust therefore added can be complete by quickly oxidation reaction, So that the shell mould prepared can not play due protective effect.When pour steel, the oxygen in external environment condition penetrates in a large number Shell mould internal layer；When the internal layer surface that Oxygen permeation to molten steel contacts with shell mould, the metal under the high temperature action of molten steel, in molten steel Oxide and the silicon oxide in shell mould internal layer react and form the silicate of low melting point, and die wall reaction i.e. occurs, so that There is decarburization phenomenon during the foundry goods demoulding and surface corrosion phenomenon occurs on foundry goods.The Ludox using high concentration makes shell mould Die wall reaction can be increased the weight of further.

3. use existing sintering furnace to produce continuously, then use the 2nd stove and the shell mould pour steel that sinters afterwards to prepare Foundry goods occur that the reason of burr/convex water wave or recessed water wave is: when continuous sintering the second furnace shell mould and later shell mould, by High in in-furnace temperature, and the capacity of heat transmission of shell mould is poor, shell mould internal-external temperature difference therefore can be caused big, and then shell mould occurs Expand more than inner shell mould so that on inner shell mould, hair check occurs.If the hair check produced is not enough so that molten steel passes, then checking The gas overstock at stricture of vagina at high temperature expands generation instantaneous pressure, so that recessed water wave occurs in cast(ing) surface.If produced Hair check can make molten steel pass, then molten steel passes crackle so that occurs on foundry goods yearning for prominent burr or convex water wave.

4. use flatbed sintering furnace sintering to prepare shell mould, would generally be with husky hole on the foundry goods prepared after pour steel Reason is: the sintering process of shell mould will necessarily along with the generation of grog i.e. shell mould outer layer pottery body in sintering process not Can maintain to have structural strength to drop, and the grog dropped is piled up on platform, now, prevents due to back-off cup Grog in sintering process drops, but the residual grog that is attached on cup can be in when pour steel, shell mould be entered in landing Portion, the grog of landing forms high temperature resistant type structure next time at the high temperature action of molten steel, thus it is sand-like recessed to cause cast(ing) surface to occur Hole, these potholes are referred to as husky hole.The most also there is technology to place husky hole, i.e. use the mode of the grog of cleaning residual in time, but existing With the presence of technology: (1) must stop producing as carried out grog cleaning, reduces sintering in-furnace temperature and just can carry out；(2) grog fall Often condense during temperature, thus be difficult to clean off, remove the sintering platform that even can damage sintering machine by force.Existing clearly Reason technology greatly reduces production efficiency, improves production cost simultaneously.

Find based on the studies above, inventor provide a kind of shell mould sintering equipment, as it is shown on figure 3, this device includes Include shell mould placement platform 1, heater 2, air-blast device 3, air draft flue 4, control system 5, sintering inner chamber 6 and closing door 7.Its In:

Being loaded in shell mould placement platform 1 in sintering inner chamber 6, shell mould cup back-off to be sintered is positioned over shell mould placement platform On 1, the one side that shell mould placement platform 1 contacts with shell mould cup is wavy shaped configuration, and crest height is 10cm, now, cast gate Cup back-off and unsettled be positioned on crest.

According to an embodiment of the present utility model, the crest height of shell mould placement platform 1 can be 3cm.

According to an embodiment of the present utility model, the crest height of shell mould placement platform 1 can be 5cm.

According to an embodiment of the present utility model, in shell mould placement platform 1 can use dismountable movable connection structure It is loaded in sintering inner chamber 6.

According to an embodiment of the present utility model, the wavy shaped configuration on shell mould placement platform 1 can be changed to other bands Reeded structure.

According to an embodiment of the present utility model, as it is shown in figure 5, shell mould placement platform 1 is flat bed platform, shell mould is placed Platform 1 is placed with the sintered plate 11 combined by polylith daughter board 12.Shell mould back-off is on sintered plate 11.Sintered plate 11 and shell mould The one side of contact is wavy shaped configuration face, crest height 10cm, now, and the cup back-off of shell mould and unsettled be positioned over sintered plate On the crest of 11.

According to an embodiment of the present utility model, the crest height of sintered plate can be 3cm.

According to an embodiment of the present utility model, the crest height of sintered plate can be 5cm.

According to an embodiment of the present utility model, it is reeded that the wavy shaped configuration on sintered plate can be changed to other bands Structure.

Closing door 7 can be turned on and off sintering inner chamber 6.Heater 2 can carry out heating operation to sintering inner chamber 6.

Air-blast device 3 air inlet one end is positioned at outside sintering equipment, and air outlet one end is positioned at sintering inner chamber 6.Blast channel Inside being also equipped with the device 31 that opens the light, this device can be turned on and off blast channel.Switching device 31 in described air-blast device is pacified It is loaded on outside the air outlet that air-blast device is positioned in sintering inner chamber 6 cavity wall.

Air draft flue 4 is built with switching device 41, and its air inlet one end is positioned at sintering intracavity, and air outlet one end is positioned at Outside sintering equipment.Switching device in described air draft flue is installed on the air inlet that air draft flue is positioned in sintering inner chamber 6 cavity wall Outside.Being also equipped with shaking device 42 and cleaning door 43 on described air draft flue, described shaking device can be by air draft flue inner wall The flue dust of attachment shakes off the cleaning door to flue.Described shaking device 42 includes: vibration motor, driving means and control device. Wherein, vibration motor is movably installed on exhaust uptake lateral wall；Driving means includes driving motor and tracks, controls dress Put and be connected with vibration motor and driving motor, being turned on and off of vibration motor can be controlled according to pre-set programs, can lead to simultaneously Motor of overdriving controls vibration motor tracks along exhaust uptake lateral wall and moves.The flue dust shaken off can pass through cleaning door 43 take out.

As shown in Figure 4, under the common effect of air-blast device 3 and air draft flue 4, in sintering inner chamber 6, sinuous flow air-flow is formed. Described sinuous flow air-flow can enter inside shell mould along the cup position of the unsettled placement of shell mould.Such as shell mould only one of which cast gate Cup, then sinuous flow air-flow can be internally formed convection current at shell mould；As shell mould has multiple cup, then sinuous flow air-flow can be in the internal shape of shell mould Become circulation.Meanwhile, the wind intensity that air-blast device 3 blasts is not enough to be blown in shell mould grog.

Control system 5 includes temperature sense module 51 and control module 52, and wherein temperature sense module 51 is installed on sintering In inner chamber 6, can be with the ambient temperature in induction sintering inner chamber 6 and to control module 52 feedback temperature data, control module 52 points Not with opening in the switching device 31 in heater 2, air-blast device 3 and air draft flue 4 and air-blast device 3, air draft flue 4 Close device 41 to connect, can be according to default program controlled heater device, air-blast device, air draft flue and switching device 31 and 41 Be turned on and off.

According to an embodiment of the present utility model, described control system 5 also includes oxygen concentration monitoring modular, this module One end is connected into sintering inner chamber 6, can monitor the real-time oxygen concentration in sintering inner chamber 6；The other end is connected with control module 52, can be by Real-time oxygen concentration in sintering inner chamber 6 feeds back to control module 52；Control module 52 controls air blast dress according to the oxygen concentration obtained Put the output of 3.

The work process of this utility model shell mould sintering equipment is:

A. after placing shell mould to be sintered on the sintered plate on shell mould placement platform 1, starter, control device 5 and control Switching device 31 in refrigerating/heating apparatus 2, air-blast device 3 and air-blast device 3 and the switching device 41 in air draft flue 4 are opened Open.

When inner chamber 6 temperature the most to be sintered reaches 700 DEG C of temperature, control being turned on and off, to maintain sintering of heater Interior cavity temperature is in 600 DEG C～800 DEG C of temperature ranges, and the shape according to shell mould of holding time and complexity are redefined for 5 ～20min；

C. the switching device 31 in air-blast device 3 and air-blast device 3 and the switching device 41 in air draft flue 4 are closed. Open heater 2 simultaneously, continue heat-agglomerating inner chamber 6 until sintering inner chamber 6 temperature reaches the sintering temperature of shell mould.Shell mould Sintering temperature can be selected in 1200 DEG C～1400 DEG C according to the shape of shell mould and complexity.

D. being turned on and off of heater is controlled, with cavity temperature in maintaining sintering 1200 DEG C～1400 DEG C of temperature ranges In, the shape according to shell mould of holding time and complexity are redefined for 30～180min.

The advantage of this utility model sintering equipment is:

1. use Segmented heating method, shell mould sintering process has been divided into burning wax stage and sintering stage, has burnt the cured stage Ensure that sintered ring has oxygen and the wax of abundance to carry out abundant combustion reaction within the border so that there's almost no in prepared shell mould because The carbon residue that residual wax carbonization is formed, it is to avoid molten steel expulsion problem and foundry goods during the cast therefore produced have asking of penetrating property pore Topic.Meanwhile, reduce, in the sintering stage, the oxygen concentration that sintered ring is domestic as far as possible, it is to avoid the graphite in shell mould is in the sintering stage Burn the most completely, serious die wall reacting phenomenon has occurred when causing shell mould pour steel.

2. the one side that sintering equipment contacts with shell mould cup is waveform, and this configuration contacts with crest due to cup, Contact surface is almost tangent plane, and when therefore cup turns and carries out pouring molten steel, its sprue gate remains hardly Grog, also avoids the husky hole phenomenon therefore produced.

3., under air-blast device and air draft flue act on jointly, in sintering, intracavity can form sinuous flow air-flow.This sinuous flow gas Stream can enter inside shell mould along the cup position of the unsettled placement of shell mould, reduces the temperature difference between shell mould ectonexine, keeps away Exempt from the shell mould internal layer shattered crack caused due to shell mould internal-external temperature difference, and then cause foundry goods that ash limit/convex water wave or recessed water wave occur Problem.Meanwhile, the wind intensity of sinuous flow air-flow is relatively low, is not enough to be blown in shell mould grog.

4. use combination type sintered plate as the placement platform of shell mould, more pottery can have been saved bit by bit in the groove of sintered plate Sintered plate, not only the residual grog in easy cleaning sintered plate is changed in time during slag, and less on quantity-produced impact, carry High production efficiency.

Use this utility model sintering equipment to not only reduce because the casting quality that causes of existing shell casting process not Stable, the problem that foundry goods substandard products, percent defective are high, improve production efficiency, reduce production cost and precision can be produced Sufficiently high foundry goods.

It should be noted that and understand, in the situation without departing from the spirit and scope required by this utility model claim Under, it is possible to this utility model of foregoing detailed description is made various modifications and improvements.It is therefore desirable to the technical scheme of protection Scope is not limited by given any specific exemplary teachings.

Claims (9)

1. a shell mould sintering equipment, it is characterised in that: include shell mould placement platform, heater, air-blast device, air draft cigarette Road, control system, sintering inner chamber and closing door；Wherein, shell mould cup back-off to be sintered is positioned on shell mould placement platform；Shell Intracavity in sintering it is loaded in mould placement platform；Closing door can be turned on and off sintering inner chamber；Heater can be in sintering Chamber carries out heating operation；Air-blast device air inlet one end is positioned at outside sintering equipment, and air outlet one end is positioned at sintering intracavity；Air draft Flue is built with switching device, and its air inlet one end is positioned at sintering intracavity, and air outlet one end is positioned at outside sintering equipment；Control system System includes temperature sense module and control module, and wherein temperature sense module is installed on the interior intracavity of sintering, can be with in induction sintering The ambient temperature of intracavity to control module feedback temperature data, control module respectively with heater, air-blast device and air draft Switching device in flue connects, can be according to default program controlled heater device, air-blast device and the unlatching of air draft flue Or close.

Shell mould sintering equipment the most according to claim 1, it is characterised in that: described shell mould placement platform can be fixedly installed in burning Knot in intracavity or with sintering inner chamber active link.

Shell mould sintering equipment the most according to claim 1, it is characterised in that: described air-blast device and air draft flue can make sintering Interior intracavity forms sinuous flow air-flow.

Shell mould sintering equipment the most according to claim 1, it is characterised in that: described control system also includes that oxygen concentration monitors mould Block, one end of this module is connected into sintering inner chamber, can monitor the real-time oxygen concentration in sintering inner chamber；The other end is with control module even Connect, the real-time oxygen concentration in sintering inner chamber can be fed back to control module；Control module controls air blast according to the oxygen concentration obtained The output of device.

Shell mould sintering equipment the most according to claim 1, it is characterised in that: described shell mould placement platform places one end of shell mould Carrying fluted on face, the grog produced when recess width can allow shell mould sinter falls in groove and shell mould self will not be caused sliding Shell mould tilt phenomenon can occur in dropping down onto groove.

Shell mould sintering equipment the most according to claim 1, it is characterised in that: placing or be provided with one on shell mould placement platform can Dismounting or the flat board replaced, shell mould is positioned on flat board end face, the end face of flat board placement shell mould carries fluted, groove width The grog produced when degree can allow shell mould sinter falls in groove and will not cause self landing of shell mould, to groove, shell can occur Mould tilt phenomenon.

Shell mould sintering equipment the most according to claim 6, it is characterised in that: described flat board is combined flat plate, and flat board is overall Formed by polylith minor structure flat sheet combination.

8. according to the arbitrary described shell mould sintering equipment of claim 5～7, it is characterised in that: described groove passes through wavy end face Obtaining, now, the cup wall of cup of shell mould to be sintered is positioned over the crest location of wavy end face.

Shell mould sintering equipment the most according to claim 1, it is characterised in that: be also equipped with on described air draft flue shaking device and Cleaning door, the flue dust of attachment in air draft flue inner wall can be shaken off the cleaning door to air draft flue by described shaking device.