CN106955994B - The temperature control type staged pouring procedure and staged casting device of casting - Google Patents
The temperature control type staged pouring procedure and staged casting device of casting Download PDFInfo
- Publication number
- CN106955994B CN106955994B CN201710358805.7A CN201710358805A CN106955994B CN 106955994 B CN106955994 B CN 106955994B CN 201710358805 A CN201710358805 A CN 201710358805A CN 106955994 B CN106955994 B CN 106955994B
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- temperature
- interception point
- casting
- sprue
- pitching
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D37/00—Controlling or regulating the pouring of molten metal from a casting melt-holding vessel
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D46/00—Controlling, supervising, not restricted to casting covered by a single main group, e.g. for safety reasons
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Continuous Casting (AREA)
Abstract
The present invention relates to the temperature control type staged pouring procedures and staged casting device of the casting in casting field；The temperature control type staged pouring procedure of casting includes the steps that blocking the interception point on running channel, and the closure to interception point is to detect the when progress that reaches setting value of the temperature of temperature corresponding with the interception point zone of influence.Controlled by detecting the temperature of temperature corresponding with the interception point zone of influence intercept device intercept movement；Compared with the prior art, operation is intercepted to interception point with actual temperature control, can thoroughly solves the problems, such as to be easy to produce the casting flaws such as shrinkage cavity, loose, coarse grains at casting lower layer position process heat section.
Description
Technical field
The present invention relates to the temperature control type staged pouring procedure of the casting in casting field and the temperature of implementation this method
Spend control type staged casting device.
Background technique
Equipment manufacture is related to national security and economic life line of the country, and the development level of equipment manufacture is to measure a state
The important symbol of family's heavy industry development level.Heavy castings are the basis of equipment manufacture, heavy castings big, quality with volume
Again, the features such as required molten metal is more, molten metal setting time is long.In order to keep the liquid steel temperature in casting process more uniform, greatly
Type casting generallys use laminated pouring technique, needs to be arranged on the running channel of casting mold interception point before pouring, is equipped with and uses at interception point
Device is intercepted in what is blocked to running channel, commonly intercepting device has that device is intercepted in pitching and valve intercepts device；It was poured
Temperature some region of in sand mold can be had an impact after being blocked before being blocked to interception point and to interception point in journey, the area
Domain forms temperature corresponding with the interception point zone of influence.
The Chinese utility model patent that notification number is CN205732941U, the day for announcing is 2016.11.30 discloses a kind of casting
Device is intercepted in steel part laminated pouring device, including casting mold, steel ball and pitching；In casting mold be equipped with type chamber and be connected to type chamber for steel
The running channel of water injection, the running channel include the sprue vertically extended and the cross gate extended in left-right direction, cross
Running channel is there are two more than, and lower leaf is arranged and is connected to respectively with sprue on each cross gate.In cross gate on the inner wall of sprue
It is equipped with the junction of sprue for the step structure with the cooperation of the steel ball of corresponding specification, is additionally provided at least a pair of of interval setting
Electrode sensor；It includes control panel, electrode sensor and electric pushrod that device is intercepted in pitching, and electrode sensor is steel
Silk.Stifled ball prevents on the platform on the upside of casting mold, and the inclined-plane passed through for stifled ball is equipped between platform and sprue upper port.
In casting process, when the height of the molten steel in sprue meets or exceeds steel wire position, since molten steel has
It is conductive, it is connected between two steel wires, pitching intercepts device and starts pitching, and control panel controls electric pushrod movement, electric pushrod
Steel ball is shifted onto sprue, when steel ball drop in place when, steel ball separates corresponding cross gate, and the molten steel hereafter injected can not
Into in the cross gate on the downside of steel ball；When liquid steel level reaches other cross gates, and so on, realize that layering is poured
Note.
Existing pouring procedure is controlled with the liquid level of the molten steel in casting process in running channel, due to casting lower layer part
The casting flaws such as shrinkage cavity, loose, coarse grains at the technique thermal center of position are mainly due to caused by temperature gradient, only by controlling steel
Water level height can not be eliminated；In addition, not needing to intercept molten steel when pouring molten steel temperature is low, due to only detecting molten steel liquid
Position, still issues signal when liquid steel level reaches and intercepts running channel, is also easy to produce misrun and waste steel ball phenomenon.
Summary of the invention
It is existing to solve the purpose of the present invention is to provide a kind of temperature control type staged pouring procedure of casting
The problem of casting flaw at casting lower layer position can not be eliminated existing for staged casting device well；The purpose of the present invention is also
It is to provide a kind of temperature control type staged casting device for implementing this method.
To achieve the above object, the technical solution of the temperature control type staged pouring procedure of casting of the invention is: casting
The staged pouring procedure of part includes the steps that blocking the interception point on running channel, the closure to interception point be detect it is stifled with this
The temperature of the corresponding temperature zone of influence of section reaches setting value when progress.
The temperature is the temperature of the interception point position.
First the height of the molten steel in running channel is detected before temperature detection, only when molten steel reaches interception point Shi Caijin
Trip temperature detection.
Closure to interception point is that the stifled ball for putting into and being made of ceramic into running channel is relied on to realize.
The technical solution of temperature control type staged casting device of the invention is: staged casting device includes being equipped with to pour
The casting mold in road and control device is intercepted to what the interception point on the running channel was blocked, temperature shadow corresponding to the interception point
It rings area and is equipped with temperature sensor, intercept device and connect with temperature sensor when the measured value of temperature sensor reaches setting value
Corresponding interception point is blocked.
The temperature sensor is arranged at interception point.
The control device of intercepting is that device is intercepted in pitching, and it includes stifled ball that device is intercepted in pitching, and the running channel includes
Sprue and cross gate, sprue are the tapered channel that intracavity section gradually decreasees from top to bottom, and the interception point setting exists
On sprue.
The stifled ball is Ceramic Balls.
Temperature control type staged casting device further includes the liquid level sensor for detecting the molten steel height in running channel,
Liquid level sensor is connect to make temperature sensor carry out thermometric when molten steel height reaches interception point with temperature sensor.
The beneficial effects of the present invention are: stifled by the temperature control for detecting the temperature zone of influence in casting mold corresponding with interception point
That cuts device intercepts movement；Compared with the prior art, operation is intercepted to interception point with actual temperature control, can thoroughly solved
The problem of being easy to produce the casting flaws such as shrinkage cavity, loose, coarse grains at casting lower layer position process heat section.
Further, before detecting liquid steel temperature, the liquid level of the molten steel in casting mold is first detected, only when the liquid of molten steel
When face height reaches interception point position, temperature detection just is carried out to molten steel；It avoids when molten steel is not up to interception point and mistake
Early pitching.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the specific embodiment of temperature control type staged casting device of the invention.
Specific embodiment
Embodiments of the present invention are described further with reference to the accompanying drawing.
The specific embodiment of temperature control type staged casting device of the invention, as shown in Figure 1, including casting mold 1 and setting
It sets and is used to intercept device to what the running channel on casting mold 1 was blocked on casting mold 1, the device of intercepting in the present embodiment is pitching
Device 2 is intercepted, it includes stifled ball 3 that device 2 is intercepted in pitching, and blocking up ball 3 is Ceramic Balls, and Ceramic Balls can return after casting complete from antiquated sand
It receives, it is reusable after polished processing.
It is equipped with type chamber 11 in casting mold 1, is equipped with running channel in the right side of type chamber 11 on casting mold 1, running channel includes prolonging along the vertical direction
The sprue 12 stretched and the cross gate extended in left-right direction 13, there are three cross gates 13, and lower leaf is set on three cross gates 13
It sets, each cross gate 13 is connected to sprue 12 respectively.
Sprue 12 is up big and down small tapered channel, and the top of casting mold 1 and the top of sprue 12 are equipped with footstock 15, peace
The sprue cup mounting groove that position corresponding with sprue 12 on seat 15 is equipped with taper is filled, sprue cup 14 is embedded to be installed in sprue cup
In slot and big end upward；Pitching intercepts device 2 and is arranged on the top surface of footstock 15 and is arranged close to sprue cup 14；On footstock 15 in
Stifled ball case is equipped between sprue cup 14 and electric pushrod 23, stifled ball 3 is placed in stifled ball case.
It includes control panel 21, temperature sampler 22 and electric pushrod 23 that device 2 is intercepted in pitching, and temperature sampler 22 includes temperature
Sensor 221 is spent, temperature sensor 221 is thermocouple；With the company of conducting wire 24 between temperature sensor 221 and temperature sampler 22
It connects.
It is preset with interception point at two in sprue 12, interception point 17 is arranged close to intermediate cross gate 13 and horizontal pours in intermediate
The lower section in road 13；Interception point 18 is arranged and is in the lower section of upper layer cross gate 13 close to upper layer cross gate 13；Each interception point is in quilt
Can the temperature of the corresponding region in casting mold 1 be impacted by intercepting front and back, i.e., each interception point is corresponding with the temperature zone of influence.
And the corresponding temperature sensor 221 of each interception point is arranged in temperature corresponding with the interception point zone of influence, this reality
The position that the temperature sensor 221 in example is arranged in where each interception point is applied, as shown in Figure 1, in the right side of sprue 12 on casting mold 1
Side is equipped with the sensor mounting hole 16 installed for temperature sensor 221, and two temperatures sensor 221 is separately positioned on and two interception points
In corresponding sensor mounting hole 16.
It further includes the liquid level inspection for detecting the height of the molten steel in sprue 12 in casting process that device 2 is intercepted in pitching
Device is surveyed, liquid level detection device and the control of temperature sampler 22 connect, only when the liquid level of the molten steel in sprue 12 reaches stifled
When section 17 or interception point 18, temperature sampler 22 can just be detected liquid steel temperature, to prevent in casting process in molten steel
When liquid level is not up to interception point and premature pitching.
The liquid level detection device is the prior art, can be electrode sensor in the prior art, or
Liquid level sensor.
Temperature sensor 221 converts electric signal for collected temperature signal and passes to temperature sampler 22, temperature
Collector 22 is connect with 21 signal of control panel, and control panel 21 has the temperature value of setting；It is dynamic that control panel 21 controls electric pushrod 23
Make.
Since sprue 12 is equipped with interception point at two, the diameter of the sprue 12 of each interception point position is different, right
It answers, blocking up the tool of ball 2, there are two types of specifications；Stifled ball 3 is placed in stifled ball case, and the stifled ball 3 of different size in stifled ball case from pouring
The descending arrangement of bulb diameter is blocked up to 23 position of electric pushrod in 14 position of cup.
In casting process, when molten steel height reaches the first interception point 17, temperature sensor 221 adopts liquid steel temperature
Collection, the collected temperature of temperature sensor 221 pass to temperature sampler 22, and signal is passed to control panel by temperature sampler 22
21。
When liquid steel temperature is more than the setting value of control panel 21, temperature control disk 21 controls electric pushrod 23 and acts, electronic
Corresponding stifled ball 3 is pushed into sprue 12 by push rod 23, is fallen at interception point 17 under stifled ball 3, and by undermost cross gate
13 partitions；When liquid steel temperature is lower than the setting value of control panel 21, then without pitching.When molten steel height reaches the second interception point
When 18, and so on.
Below by taking large-scale high manganese steel casting, common low carbon steel casting and large aluminum alloy casting as an example, staged is poured
The working principle of device is illustrated:
A kind of casting production (weighing about 150 tons) of large size high manganese steel casting, comprising the following steps:
Step 1: carrying out technological design to high manganese cast steel part, using three layers of staged casting device, sodium silicate molding,
The mounting hole of the installation of TC is reserved on sand mold；It determines corresponding to position and each interception point of the interception point in sprue
The internal diameter of sprue, the diameter of the first interception point is Φ 60mm in the present embodiment, and the diameter of the second interception point is Φ 70mm.
Step 2: before casting, thermocouple is inserted into the reserved mounting hole on casting mold, the position of temperature measuring point and each interception point
Set correspondence.
Step 3: stifled ball, temperature sampler, control panel and electric pushrod to be installed to the top of footstock, and will be each electrical
Element connects, and debugs functional to guarantee.
Step 4: the set temperature of control panel is 1480 DEG C；Diameter be Φ 60mm and Φ 70mm block up each one of ball, block up ball from
It ascending is arranged successively close to the position where the position to electric pushrod of sprue cup.
Step 5: casting, when liquid steel level reaches first interception point, temperature test, data acquire and are transferred to temperature
Spend collector.
Step 6: when measured temperature is more than 1480 DEG C, control panel sends a signal to electric pushrod, and electric pushrod pushes the
One Ceramic Balls enters sprue, and stifled ball in place afterwards separates undermost cross gate, and molten steel horizontal is poured without what normal direction was blocked up on the downside of ball
It is flowed in road.If measured temperature is lower than 1480 DEG C, signal is not issued, electric pushrod is failure to actuate.
Step 7: repeating the 6th step after second interception point operation thermometric.
Step 8: after casting complete, device is intercepted into the pitching on thermocouple and footstock and all removes, keep well, in case under
A casting pouring uses.
Step 9: being recycled stifled ball in antiquated sand, polishing treatment after casting shake out, used to next time.
A kind of large size common low carbon steel casting (weighing about 300 tons) casting production, comprising the following steps: cast with above-mentioned potassium steel
The casting process of part the difference is that: 1, using four layers of staged casting device；2, it is set in sprue there are three interception point,
The diameter of stifled ball for cooperating with each interception point is respectively Φ 70mm, Φ 80mm and Φ 90mm；3, the set temperature of control panel
It is 1560 DEG C；Specific operating procedure is similar with a kind of above-mentioned large-scale operating procedure of high manganese steel casting, is no longer described in detail.
A kind of Large size Aluminium conjunction casting pouring production (weighing about 30 tons), comprising the following steps: with pouring for above-mentioned high manganese steel casting
Note process the difference is that: 1, using Double-ladder formula casting device；2, in sprue be equipped with an interception point, for
The diameter of the stifled ball of interception point cooperation is Φ 60mm；3, the set temperature of control panel is 680 DEG C；Concrete operation step with it is above-mentioned
It is a kind of large size high manganese steel casting casting production process the step of it is similar, therefore, be no longer described in detail.
In other embodiments, it can also be not provided with liquid level detection device, sunk structure is set on the inner wall of sprue,
The inductive head of temperature sensor is within sunk structure, only when the height of the molten steel in sprue reaches sunk structure institute
At position, temperature sensor could carry out temperature detection to molten steel.
In other embodiments, blocking up ball also can be set into steel ball.
In other embodiments, temperature sensor can also be arranged in corresponding with a certain interception point and non-stifled on casting mold
In other temperature zones of influence of section position, for example, on casting mold on the side wall of plesiotype chamber.
In other embodiments, pitching can also be intercepted to device be arranged to valve and intercept device, by detect with
The temperature of the corresponding temperature zone of influence of interception point carrys out the opening and closing of control valve, realizes laminated pouring.
The specific embodiment of the temperature control type staged pouring procedure of casting of the invention, the temperature control type rank of casting
The reality of any embodiment of the temperature control type staged casting device of the implementation steps and aforementioned present invention of ladder type pouring procedure
It is consistent to apply step, therefore, is not repeated to illustrate.
Claims (3)
1. the temperature control type staged pouring procedure of casting includes the steps that blocking the interception point on running channel, it is characterised in that:
Closure to interception point is to detect the when progress that reaches setting value of the temperature of temperature corresponding with the interception point zone of influence, casting
The temperature control type staged casting device of Shi Caiyong include casting mold and be arranged on casting mold for the running channel on casting mold into
Device is intercepted in the pitching that row blocks, and the temperature is the temperature of the interception point position, first to running channel before temperature detection
In the height of molten steel detected, temperature detection is only just carried out when molten steel reaches interception point, the closure to interception point is
It is realized by the stifled ball being made of ceramic is put into running channel, it includes control panel, temperature sampler and electronic that device is intercepted in pitching
Push rod, temperature sampler include temperature sensor, and running channel includes the sprue vertically extended and extends in left-right direction
Cross gate, sprue be equipped with two at interception point, be followed successively by the first interception point and the second interception point, casting process from the bottom to top
In, when molten steel height reaches the first interception point, temperature sensor is acquired liquid steel temperature, and temperature sensor is collected
Temperature passes to temperature sampler, and signal is passed to control panel by temperature sampler, when liquid steel temperature is more than the setting of control panel
When value, temperature control disk controls electric pushrod movement, and corresponding stifled ball is pushed into sprue by electric pushrod, falls under stifled ball
At interception point, and undermost cross gate is separated；When liquid steel temperature is lower than the setting value of control panel, then without pitching.
2. temperature control type staged casting device, including being equipped with the casting mold of running channel and being sealed to the interception point on the running channel
Device is intercepted in stifled pitching, it is characterised in that: the temperature zone of influence corresponding to the interception point is equipped with temperature sensor, and pitching is stifled
Device is cut to connect to temperature sensor to block corresponding interception point when the measured value of temperature sensor reaches setting value,
Temperature control type staged casting device further includes the liquid level sensor for detecting the molten steel height in running channel, level detection
Device is connect to make temperature sensor carry out thermometric when molten steel height reaches interception point with temperature sensor, and the temperature passes
Sensor is arranged at interception point, and it includes stifled ball that device is intercepted in pitching, and the running channel includes sprue and cross gate, and sprue is
The tapered channel that intracavity section gradually decreasees from top to bottom, the interception point are arranged on sprue, and device packet is intercepted in pitching
Control panel, temperature sampler and electric pushrod are included, temperature sampler includes temperature sensor, and sprue is equipped at two and intercepts
Point, is followed successively by the first interception point and the second interception point from the bottom to top, in casting process, when molten steel height reaches the first interception point
When, temperature sensor is acquired liquid steel temperature, and the collected temperature of temperature sensor passes to temperature sampler, and temperature is adopted
Signal is passed to control panel by storage, and when liquid steel temperature is more than the setting value of control panel, temperature control disk controls electric pushrod
Movement, corresponding stifled ball is pushed into sprue by electric pushrod, falls at interception point under stifled ball, and by undermost cross gate
Partition；When liquid steel temperature is lower than the setting value of control panel, then without pitching.
3. temperature control type staged casting device according to claim 2, it is characterised in that: the stifled ball is ceramics
Ball.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710358805.7A CN106955994B (en) | 2017-05-19 | 2017-05-19 | The temperature control type staged pouring procedure and staged casting device of casting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710358805.7A CN106955994B (en) | 2017-05-19 | 2017-05-19 | The temperature control type staged pouring procedure and staged casting device of casting |
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| Publication Number | Publication Date |
|---|---|
| CN106955994A CN106955994A (en) | 2017-07-18 |
| CN106955994B true CN106955994B (en) | 2019-02-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710358805.7A Expired - Fee Related CN106955994B (en) | 2017-05-19 | 2017-05-19 | The temperature control type staged pouring procedure and staged casting device of casting |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN113523194B (en) * | 2021-07-24 | 2022-09-06 | 共享装备股份有限公司 | Staggered pouring structure |
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| CN103736928A (en) * | 2014-01-17 | 2014-04-23 | 合肥工业大学 | Evanescent mode pouring system of speed changing box body |
| CN203944819U (en) * | 2014-06-16 | 2014-11-19 | 超威电源有限公司 | Battery grid casting die |
| CN105964944A (en) * | 2016-06-22 | 2016-09-28 | 成都伊普视科技有限公司 | Step type gating system for pipeline castings without branch pipes |
| CN205732941U (en) * | 2016-05-05 | 2016-11-30 | 中信重工机械股份有限公司 | A kind of steel-casting laminated pouring device |
| CN106216606A (en) * | 2016-08-31 | 2016-12-14 | 安徽工程大学 | A kind of independent control method controlling runner timing switching in running gate system |
| CN106475522A (en) * | 2015-08-27 | 2017-03-08 | 武汉重型机床集团有限公司 | The running gate system of heavy castings and pouring procedure |
-
2017
- 2017-05-19 CN CN201710358805.7A patent/CN106955994B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103736928A (en) * | 2014-01-17 | 2014-04-23 | 合肥工业大学 | Evanescent mode pouring system of speed changing box body |
| CN203944819U (en) * | 2014-06-16 | 2014-11-19 | 超威电源有限公司 | Battery grid casting die |
| CN106475522A (en) * | 2015-08-27 | 2017-03-08 | 武汉重型机床集团有限公司 | The running gate system of heavy castings and pouring procedure |
| CN205732941U (en) * | 2016-05-05 | 2016-11-30 | 中信重工机械股份有限公司 | A kind of steel-casting laminated pouring device |
| CN105964944A (en) * | 2016-06-22 | 2016-09-28 | 成都伊普视科技有限公司 | Step type gating system for pipeline castings without branch pipes |
| CN106216606A (en) * | 2016-08-31 | 2016-12-14 | 安徽工程大学 | A kind of independent control method controlling runner timing switching in running gate system |
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| CN106955994A (en) | 2017-07-18 |
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