CN106955994A - The temperature control type staged pouring procedure and staged apparatus for pouring of casting - Google Patents
The temperature control type staged pouring procedure and staged apparatus for pouring of casting Download PDFInfo
- Publication number
- CN106955994A CN106955994A CN201710358805.7A CN201710358805A CN106955994A CN 106955994 A CN106955994 A CN 106955994A CN 201710358805 A CN201710358805 A CN 201710358805A CN 106955994 A CN106955994 A CN 106955994A
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- Prior art keywords
- temperature
- interception point
- pouring
- casting
- control type
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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 procedure and staged apparatus for pouring of the casting in casting field；The step of temperature control type staged pouring procedure of casting includes the interception point on closure running channel, the closure to interception point is carried out when the temperature for detecting the temperature zone of influence corresponding with the interception point reaches setting value.Control to intercept device by detecting the temperature of corresponding with the interception point temperature zone of influence intercepts action；Compared to prior art, operation is intercepted to interception point with actual temperature control, the problem of can thoroughly solving easily to produce the casting flaw such as shrinkage cavity, loose, coarse grains at casting lower floor 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 apparatus for pouring.
Background technology
Equipment manufacture is related to national security and economic life line of the country, and the development level of equipment manufacture is to weigh a state
The important symbol of family's heavy industry development level.Heavy castings are the bases of equipment manufacture, and heavy castings have that volume is big, quality
Again, the features such as required molten metal is more, molten metal setting time is long.In order that the liquid steel temperature in casting process is more uniform, greatly
Type casting generally uses laminated pouring technique, needs to set on the running channel of casting mold before pouring at interception point, interception point provided with use
In the device of intercepting blocked to running channel, conventional device of intercepting has that device is intercepted in pitching and valve intercepts device；Poured into a mould
In journey interception point is carried out block it is preceding and after being blocked on interception point can on sand mold in some region of temperature produce influence, the area
Domain is to form the temperature zone of influence corresponding with the interception point.
Notification number be CN205732941U, the day for announcing be 2016.11.30 Chinese utility model patent disclose a kind of casting
Device is intercepted in steel part laminated pouring device, including casting mold, steel ball and pitching；Provided with die cavity and the confession steel connected with die cavity in casting mold
The running channel of water injection, the cross gate that described running channel includes vertically extending sprue and extended in left-right direction is horizontal
Running channel has lower leaf on two or more, each cross gate to set and connected respectively with sprue.In cross gate on the inwall of sprue
The ledge structure for being used for coordinating with the steel ball of corresponding specification is provided with the junction of sprue, at least one pair of interval setting is additionally provided with
Electrode sensor；Device is intercepted in pitching includes control panel, electrode sensor and electric pushrod, and electrode sensor is steel
Silk.Stifled ball is prevented on the platform on the upside of casting mold, and the inclined-plane passed through for stifled ball is provided between platform and sprue upper port.
In casting process, when the height of the molten steel in sprue meets or exceeds steel wire position, due to molten steel tool
It is conductive, turned between two steel wires, pitching intercepts device and starts pitching, control panel control electric pushrod action, electric pushrod
Steel ball is shifted onto in sprue, whne 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, the like, realize that layering is poured
Note.
Existing pouring procedure is controlled with the liquid level of the molten steel in running channel in casting process, 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 thermograde, only by control steel
Water level height can not be eliminated；In addition, need not be intercepted when pouring molten steel temperature is low to molten steel, due to only detecting molten steel liquid
Position, when liquid steel level reaches still sending signal intercepts running channel, is also easy to produce misrun and wastes steel ball phenomenon.
The content of the invention
It is existing to solve it is an object of the invention to provide a kind of temperature control type staged pouring procedure of casting
The problem of can not eliminating the casting flaw at casting lower floor position well of staged apparatus for pouring presence；The purpose of the present invention is also
It is that a kind of temperature control type staged apparatus for pouring for implementing this method is provided.
To achieve the above object, the technical scheme of the temperature control type staged pouring procedure of casting of the invention is：Casting
The step of staged pouring procedure of part includes the interception point on closure running channel, be to the closure of interception point detect it is stifled with this
The temperature of the corresponding temperature zone of influence of section is carried out when reaching setting value.
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 just entered when molten steel reaches interception point
Trip temperature is detected.
Closure to interception point is to rely on to put into the stifled ball realization being made up of ceramics into running channel.
The technical scheme of temperature control type staged apparatus for pouring of the present invention is：Staged apparatus for pouring, which includes being provided with, to be poured
The casting mold in road and the interception point on the running channel is blocked intercept control device, the temperature shadow corresponding to the interception point
Ring area and be provided with temperature sensor, intercept device and be connected with temperature sensor with when the measured value of temperature sensor reaches setting value
Corresponding interception point is blocked.
Described temperature sensor is arranged at interception point.
Described control device of intercepting intercepts device for pitching, and device is intercepted in pitching includes stifled ball, and described running channel includes
Sprue and cross gate, sprue are the tapered channel that intracavity section is from top to bottom gradually reduced, and described interception point is arranged on
On sprue.
Described stifled ball is Ceramic Balls.
Temperature control type staged apparatus for pouring also includes the liquid level sensor for being used to detect the molten steel height in running channel,
Liquid level sensor is connected to make temperature sensor carry out thermometric when molten steel highly reaches interception point with temperature sensor.
The beneficial effects of the invention are as follows：Blocked up by the temperature control for detecting the temperature zone of influence in casting mold corresponding with interception point
That cuts device intercepts action；Compared to prior art, operation is intercepted to interception point with actual temperature control, can thoroughly be solved
The problem of casting flaw such as shrinkage cavity, loose, coarse grains easily being produced at casting lower floor position process heat section.
Further, before detection liquid steel temperature, the liquid level of the molten steel in casting mold, the only liquid when molten steel are first detected
When face highly reaches interception point position, temperature detection just is carried out to molten steel；Avoid when molten steel is not up to interception point and mistake
Early pitching.
Brief description of the drawings
Fig. 1 is the structural representation of the specific embodiment of the temperature control type staged apparatus for pouring of the present invention.
Embodiment
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The specific embodiment of the temperature control type staged apparatus for pouring of the present invention, as shown in figure 1, including casting mold 1 and setting
The device of intercepting intercepted in device, the present embodiment for being blocked to the running channel on casting mold 1 put on casting mold 1 is pitching
Device 2 is intercepted, device 2 is intercepted in pitching includes stifled ball 3, and it is Ceramic Balls to block up ball 3, and Ceramic Balls can be returned after casting complete from antiquated sand
Receive, it is reusable after polished processing.
It is provided with casting mold 1 on die cavity 11, casting mold 1 and is provided with running channel in the right side of die cavity 11, running channel includes prolonging along the vertical direction
The sprue 12 stretched and the cross gate 13 extended in left-right direction, cross gate 13 have lower leaf on three, three cross gates 13 to set
Put, each cross gate 13 is connected with sprue 12 respectively.
Sprue 12 is up big and down small tapered channel, and the top of casting mold 1 is provided with footstock 15, peace with the top of sprue 12
The sprue cup mounting groove that position corresponding with sprue 12 on seat 15 is provided with taper is filled, sprue cup 14 is embedded to be installed in sprue cup
In groove and big end is upward；Pitching intercepts device 2 and is arranged on the top surface of footstock 15 and is set close to sprue cup 14；On footstock 15 in
Provided with stifled ball case between sprue cup 14 and electric pushrod 23, stifled ball 3 is placed in stifled ball case.
Device 2 is intercepted in pitching includes control panel 21, Temperature sampler 22 and electric pushrod 23, and Temperature sampler 22 includes temperature
Sensor 221 is spent, temperature sensor 221 is thermocouple；Connected between temperature sensor 221 and Temperature sampler 22 with wire 24
Connect.
It is preset with interception point at two in sprue 12, interception point 17 sets close to middle cross gate 13 and horizontal poured in middle
The lower section in road 13；Interception point 18 is set and the lower section in upper strata cross gate 13 close to upper strata cross gate 13；Each interception point is in quilt
The temperature of the corresponding region in casting mold 1 can be impacted before and after intercepting, i.e., each interception point is to that there should be the temperature zone of influence.
Temperature sensor 221 corresponding with each interception point is arranged in the temperature zone of influence corresponding with the interception point, this reality
The position that the temperature sensor 221 in example is arranged on where each interception point is applied, as shown in figure 1, in the right side of sprue 12 on casting mold 1
Side is provided 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.
The liquid level inspection that device 2 also includes being used to detect the height of the molten steel in sprue 12 in casting process is intercepted in pitching
Survey device, liquid level detection device and Temperature sampler 22 control to be connected, only when the liquid level of the molten steel in sprue 12 reach it is stifled
When section 17 or interception point 18, Temperature sampler 22 can just be detected to liquid steel temperature, to prevent in casting process in molten steel
When liquid level is not up to interception point and too early pitching.
Described liquid level detection device is prior art, can be electrode sensor of the prior art, or
Liquid level sensor.
The temperature signal collected is converted into electric signal and passes to Temperature sampler 22, temperature by temperature sensor 221
Collector 22 is connected with the signal of control panel 21, and control panel 21 has the temperature value of setting；The control electric pushrod 23 of control panel 21 is moved
Make.
Because sprue 12 is provided with interception point at two, the diameter of the sprue 12 of each interception point position is different, right
Answer, blocking up ball 2 has two kinds of specifications；Stifled ball 3 is placed in stifled ball case, and different size stifled ball 3 in stifled ball case from pouring
The descending arrangement of bulb diameter is blocked up in the position of cup 14 to the position of electric pushrod 23.
In casting process, when molten steel highly reaches the first interception point 17, temperature sensor 221 is adopted to liquid steel temperature
Collection, the temperature that temperature sensor 221 is collected passes to Temperature sampler 22, and Temperature sampler 22 is by signal transmission to control panel
21。
When liquid steel temperature exceedes the setting value of control panel 21, the control electric pushrod 23 of temperature control disk 21 is acted, electronic
Corresponding stifled ball 3 is pushed into sprue 12 by push rod 23, is fallen under stifled ball 3 at interception point 17, and by undermost cross gate
13 cut-offs；When liquid steel temperature is less than the setting value of control panel 21, then without pitching.When molten steel highly reaches the second interception point
When 18, the like.
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 into a mould
The operation principle of device is illustrated：
A kind of cast production of large-scale high manganese steel casting（Weigh about 150 tons）, comprise the following steps：
Step one：Technological design is carried out to high manganese cast steel part, using three layers of staged apparatus for pouring, sodium silicate molding, sand mold
On be reserved for the mounting hole of the installation of TC；Determine to locate corresponding to position and each interception point of the interception point in sprue perpendicular pours
A diameter of Φ 60mm of first interception point in the internal diameter in road, the present embodiment, a diameter of Φ 70mm of the second interception point.
Step 2：Before cast, thermocouple is inserted in the reserved mounting hole on casting mold, the position of point for measuring temperature and each interception point
Put correspondence.
3rd step：Stifled ball, Temperature sampler, control panel and electric pushrod are installed to the top of footstock, and will be each electric
Element is connected, and is debugged functional to ensure.
4th step：The design temperature of control panel is 1480 DEG C；A diameter of Φ 60mm and Φ 70mm block up each one of ball, block up ball from
Ascending it is arranged in order close to the position where the position to electric pushrod of sprue cup.
5th step：Cast, when liquid steel level reaches first interception point, temperature test, data acquisition is simultaneously transferred to temperature
Spend collector.
6th step：When measured temperature is more than 1480 DEG C, control panel is signaled to electric pushrod, and electric pushrod promotes the
One Ceramic Balls enters sprue, and stifled ball in place afterwards separates undermost cross gate, and molten steel blocks up horizontal pouring on the downside of ball without normal direction
Flowed in road.If measured temperature is less than 1480 DEG C, signal is not sent, electric pushrod is failure to actuate.
7th step：The 6th step is repeated after second interception point operation thermometric.
8th step：After casting complete, device is intercepted into the pitching on thermocouple and footstock and all pulls down, keep well, in case under
Individual casting pouring is used.
9th step：After casting shake out, stifled ball is reclaimed in antiquated sand, polishing, treat that next time uses.
A kind of large-scale common low carbon steel casting（Weigh about 300 tons）Cast production, comprises the following steps：Cast with above-mentioned potassium steel
The difference of the casting process of part is：1st, using four layers of staged apparatus for pouring；2nd, provided with three interception points in sprue,
The diameter of stifled ball for coordinating with each interception point is respectively Φ 70mm, Φ 80mm and Φ 90mm；3rd, the design temperature of control panel
For 1560 DEG C；Specific operating procedure is similar with a kind of above-mentioned operating procedure of large-scale high manganese steel casting, no longer describes in detail.
A kind of Large size Aluminium closes casting pouring production（Weigh about 30 tons）, comprise the following steps：With pouring for above-mentioned high manganese steel casting
The difference of note process is：1st, using Double-ladder formula apparatus for pouring；2nd, in sprue provided with interception point, for
The a diameter of Φ 60mm for the stifled ball that the interception point coordinates；3rd, the design temperature of control panel is 680 DEG C；Concrete operation step with it is above-mentioned
A kind of the step of cast production process of large-scale high manganese steel casting, is similar, therefore, no longer describes in detail.
In other embodiments, liquid level detection device can also be not provided with, sunk structure is set on the inwall 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, stifled ball can also be arranged to steel ball.
In other embodiments, temperature sensor can also be arranged on 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 die cavity.
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 keying of control valve, realizes laminated pouring.
The specific embodiment of the temperature control type staged pouring procedure of the casting of the present invention, the temperature control type rank of casting
The reality of the implementation steps of ladder type pouring procedure and any embodiment of the temperature control type staged apparatus for pouring of the invention described above
Apply step consistent, therefore, explanation is not repeated.
Claims (9)
1. the temperature control type staged pouring procedure of casting, including the step of interception point on closure running channel, it is characterised in that：
Closure to interception point is carried out when the temperature for detecting the temperature zone of influence corresponding with the interception point reaches setting value.
2. the temperature control type staged pouring procedure of casting according to claim 1, it is characterised in that：The temperature is
The temperature of the interception point position.
3. the temperature control type staged pouring procedure of casting according to claim 1 or 2, it is characterised in that：In temperature
First the height of the molten steel in running channel is detected before detection, temperature detection is just carried out only when molten steel reaches interception point.
4. the temperature control type staged pouring procedure of casting according to claim 1 or 2, it is characterised in that：To intercepting
The closure of point is that the stifled ball being made up by being put into running channel of ceramics is realized.
5. temperature control type staged apparatus for pouring, including the casting mold provided with running channel and the interception point on the running channel is sealed
Stifled intercepts control device, it is characterised in that：The temperature zone of influence corresponding to the interception point is provided with temperature sensor, intercepts dress
Put and connect to block corresponding interception point when the measured value of temperature sensor reaches setting value to temperature sensor.
6. temperature control type staged apparatus for pouring according to claim 5, it is characterised in that：Described temperature sensor
It is arranged at interception point.
7. the temperature control type staged apparatus for pouring according to claim 5 or 6, it is characterised in that：Described intercepts control
Device processed intercepts device for pitching, and device is intercepted in pitching includes stifled ball, and described running channel includes sprue and cross gate, sprue
The tapered channel being from top to bottom gradually reduced for intracavity section, described interception point is arranged on sprue.
8. temperature control type staged apparatus for pouring according to claim 7, it is characterised in that：Described stifled ball is ceramics
Ball.
9. the temperature control type staged apparatus for pouring according to claim 5 or 6, it is characterised in that：Temperature control type rank
Ladder type apparatus for pouring also includes the liquid level sensor for being used to detect the molten steel height in running channel, and liquid level sensor is passed with temperature
Sensor connection carries out thermometric to make temperature sensor when molten steel highly reaches interception point.
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 true CN106955994A (en) | 2017-07-18 |
| CN106955994B 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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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523194A (en) * | 2021-07-24 | 2021-10-22 | 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523194A (en) * | 2021-07-24 | 2021-10-22 | 共享装备股份有限公司 | Staggered pouring structure |
| 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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| Publication number | Publication date |
|---|---|
| CN106955994B (en) | 2019-02-26 |
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