CN101032747A - Producing method of oxidation resistant and centrifugal type iron mold formed by founding and the special device - Google Patents
Producing method of oxidation resistant and centrifugal type iron mold formed by founding and the special device Download PDFInfo
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- CN101032747A CN101032747A CN 200610132360 CN200610132360A CN101032747A CN 101032747 A CN101032747 A CN 101032747A CN 200610132360 CN200610132360 CN 200610132360 CN 200610132360 A CN200610132360 A CN 200610132360A CN 101032747 A CN101032747 A CN 101032747A
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Abstract
The present invention is oxidation-proof centrifugal ingot die casting process and apparatus. The ingot die casting process includes the following steps: 1. fixing ingot die on a rotating device and regulating the height of the rotating device for the ingot die to approach to the pouring port; 2. starting the rotating device to rotate the ingot die; 3. introducing inert gas to the cavity of the ingot die for filling the cavity with inert gas; 4. pouring molten steel; and 5. shutting gas valves and stopping motor after casting to obtain ingot. The present invention fills the die cavity with inert gas to avoid oxidation of molten steel and to blow bad impurity from molten steel to the settling cavity, so as to ensure the purity of the steel crystal. The present invention has convenient operation, no environmental pollution and no harm to human body.
Description
Technical field
The present invention relates to a kind of production method and isolated plant thereof of oxidation resistant and centrifugal type static ingot, belong to the steel ingot casting technology field.
Background technology
Molten steel casting has die casting and two kinds of methods of direct casting (being called for short " continuous casting ").Die casting is traditional casting method, though compare with continuous casting steel machine, there are shortcomings such as recovery rate of iron is low, the production cycle is long, labour intensity is big, efficient is low in die casting, still occupy in the cast steel technology than consequence but be moulded into, because some high-carbon high-alloy steels are also wanted pattern to cast and are cast into steel ingot, could cogging on roughing mill, and becoming on the mill to roll into steel.The die casting of prior art can be divided into downhill casting and bottom casting again, and downhill casting is that molten steel directly injects from the mold upper opening; Bottom casting is that molten steel enters mold by feed trumpet and Tang Dao from the bottom.The steel ingot that finishes of casting need treat that solidified inside sloughs mold through stripping process after to a certain degree, delivers to down to go on foot operation and process.There is following problem in the die casting method of existing die casting technology: (1) when cast, molten steel easily causes parts quality decline with air generation oxidation reaction.(2) owing to contain harmful impurity usually in the molten steel, these impurity are clipped in the product that is brought into following process (for example forge, rolling, extruding etc.) in the steel ingot, become the hidden danger that influences the product serviceability.
Summary of the invention
First purpose of the present invention is in the static ingot process that overcomes prior art, exist molten steel easily with air generation oxidation reaction and molten steel in the impurity shortcoming of easily bringing the steel ingot product into, a kind of production method of oxidation resistant and centrifugal type static ingot is provided.
Second purpose of the present invention is for a kind of isolated plant that is used for oxidation resistant and centrifugal type static ingot production method is provided.
First purpose of the present invention can reach by following measure:
The production method of oxidation resistant and centrifugal type static ingot is characterized in that may further comprise the steps:
1) ingot mould is fixed on the whirligig, adjust whirligig height, make ingot mould near the molten steel sprue gate;
2) start whirligig, make ingot mould be in rotation status;
3) bottom from ingot mould feeds low pressure or low speed inert gas to the ingot mould cavity, and injects at a high speed or high-pressure inert gas from the top of ingot mould, makes in the cavity of ingot mould to be full of inert gas;
4) under being in the state of rotation, ingot mould begins to pour into a mould molten steel, the molten steel and the air that enter in the steel ingot die cavity are isolated, molten steel atomize under high velocity air sprays and freezes solidly in the ingot mould, and the impurity in the molten steel falls into to precipitate in the chamber in the acting in conjunction of centrifugal force and high velocity air and is removed;
5) after molten steel was filled with the steel ingot die cavity, cast finished, and closed the low pressure gas valve of ingot mould bottom and the high speed air valve at top, and stopped motor, promptly made ingot mould.
In order to reach first purpose of the present invention, can also further take following measure:
For a kind of embodiment that reaches first purpose of the present invention is: described ingot mould 1 can be porous crack ingot mould.
For a kind of embodiment that reaches first purpose of the present invention is: used inert gas is nitrogen or hydrogen in preceding method.
Second purpose of the present invention can reach by following measure:
The isolated plant of the production method of oxidation resistant and centrifugal type static ingot as previously mentioned, its design feature is: comprise ingot mould, positioner, whirligig and drive unit; Ingot mould is fixed in the positioner, positioner is fixed on the upper end of whirligig, one end at described ingot mould top has the aperture that always feeds in the steel ingot die cavity, drive unit is fixedlyed connected with the shell of whirligig, the clutch end of drive unit is connected with the input of whirligig, and the clutch end of whirligig is fixedlyed connected with positioner; The bottom of ingot mould is provided with pore.Described pore can be communicated with external inertia source of the gas, allows external inert gas from the bottom surface enters molten steel the casting.
Second purpose of the present invention can also reach by following measure:
For a kind of embodiment that reaches second purpose of the present invention is: the bottom of aforementioned whirligig also is provided with lowering or hoisting gear, and the bottom of whirligig is connected with lowering or hoisting gear; Described lowering or hoisting gear is Z type lever lowering or hoisting gear or spiral lowering or hoisting gear.
For a kind of embodiment that reaches second purpose of the present invention is: described whirligig is made of connector, vertical shaft, driving wheel and axle sleeve type shell; Fixedly connected with the bottom of positioner in the top of connector, inner chamber is fixedlyed connected with the top of vertical shaft, and driving wheel is fixed on the middle part of vertical shaft, and driving wheel is connected with the clutch end of drive unit by drive disk assembly; Upper and lower two sides of axle sleeve type shell are connected with vertical shaft by bearing respectively; The axle center of vertical shaft is provided with an axially extending bore that is communicated with ingot mould bottom pore, and the lower port place of this axially extending bore is provided with gas switch; The on/off of control low-pressure inert gas.
For a kind of embodiment that reaches second purpose of the present invention is: drive unit can constitute by subtracting the pendulum motor, the output shaft that subtracts the pendulum motor is connected with the driving wheel of whirligig by drive disk assembly, and the shell that subtracts the output shaft of pendulum motor is fixedlyed connected with the axle sleeve type shell of whirligig.
For a kind of embodiment that reaches second purpose of the present invention is: described drive disk assembly can be made of driving-chain, driving-belt or engaged transmission gear train.
For a kind of embodiment that reaches second purpose of the present invention is: described gas switch is low-pressure nitrogen switch or low pressure hydrogen switch.
For a kind of embodiment that reaches second purpose of the present invention is: the top at ingot mould is provided with the sprue gate, is furnished with shape for hat plug GY in the sprue gate, and the aperture at ingot mould top is skewed, passes, is communicated with the inner chamber of ingot mould by the sprue gate from the sidewall at sprue gate.
One embodiment of the present invention are: be provided with a rotary valve NK1 before the described gas switch.
The invention has the beneficial effects as follows:
1. the present invention adopts the inert gas high, low speed to flow and fills die cavity, and during cast, die cavity is full of by nitrogen, avoid molten steel and air generation oxidation reaction, realize the reaction of casting process non-oxidation, the ingot mould function admirable that makes, mechanical performance is higher than common steel-casting far away.
2. the present invention pours into a mould under centrifugal situation, feeds high velocity air during cast, and high velocity air injection molten steel makes it atomizing and freezes solidly in mushy ingot mould, with objectionable being blown in the precipitation chamber in the molten steel, has guaranteed the degree of purity of steel crystallization simultaneously.
3. the present invention places combination device for founding iron mold integral body on the hoistable platform, can be as required, and the control adjustable height makes ingot mould whole realization quick change and combination, accelerates revolving die speed, enhances productivity.
Description of drawings
Fig. 1, Fig. 2 are the structural representation of specific embodiment 1 equipment therefor.
The specific embodiment
The production method and the isolated plant of oxidation resistant and centrifugal type static ingot are described in detail in detail below for example.
Specific embodiment 1:
The production method of oxidation resistant and centrifugal type static ingot is characterized in that may further comprise the steps:
1) before the cast molten steel, ingot mould 1 is fixed in the positioner 2, it is good that positioner 2 is fixedlyed connected with the connector 31 of whirligig 3;
2) start drive unit 4, make 3 rotations of drive disk assembly 7 driven rotary devices, make ingot mould 1 be in rotation status;
3) axially extending bore by vertical shaft 32 feeds low pressure or low speed nitrogen from the bottom of ingot mould 1 to the ingot mould cavity, and open the sprue gate shape for hat plug on the top of ingot mould 1, inject at a high speed or high pressure nitrogen from the top of ingot mould 1, make in the cavity of ingot mould 1 to be full of inert gas;
4) begin to pour into a mould molten steel; During cast, adjust the isolated plant bottom vertical lift device 5, make ingot mould 1 near the molten steel sprue gate, at this moment, the molten steel and the air that enter in the steel ingot die cavity are isolated, molten steel atomize under high velocity air sprays and freezes solidly in the ingot mould 1, and the impurity in the molten steel falls into to precipitate in the chamber in the acting in conjunction of centrifugal force and high velocity air and is removed;
5) after molten steel was filled with the steel ingot die cavity, cast finished, and closed the low pressure gas valve of ingot mould 1 bottom and the high speed air valve at top, and stopped motor, promptly made static ingot.
In the present embodiment:
Referring to Fig. 1, Fig. 2, the used isolated plant of present embodiment comprises ingot mould 1, positioner 2, whirligig 3, drive unit 4 and lowering or hoisting gear 5; Ingot mould 1 is fixed in the positioner 2, positioner 2 is fixed on the upper end of whirligig 3, the bottom of whirligig 3 is connected with lowering or hoisting gear 5, one end at ingot mould 1 top has the aperture 6 that always feeds in the steel ingot die cavity, drive unit 4 is fixedlyed connected with the shell of whirligig 3, the clutch end of drive unit 4 is connected with the input of whirligig 3, and the clutch end of whirligig 3 is fixedlyed connected with positioner 2; The bottom of ingot mould 1 is provided with pore 11.Whirligig 3 is made of connector 31, vertical shaft 32, driving wheel 33 and axle sleeve type shell 34; Fixedly connected with the bottom of positioner 2 in the top of connector 31, internal chamber wall is fixedlyed connected with the top of vertical shaft 32, and driving wheel 33 is fixed on the middle part of vertical shaft 32, and driving wheel 33 is connected with the clutch end of drive unit 4 by drive disk assembly 7; Upper and lower two sides of axle sleeve type shell 34 are connected with vertical shaft 32 by bearing respectively; The axle center of vertical shaft 32 is provided with an axially extending bore 8 that communicates with ingot mould 1 inner chamber, and the lower port place of this axially extending bore 8 is provided with gas switch 9, is used to control the on/off of low-pressure inert gas.Drive unit 4 constitutes by subtracting the pendulum motor, and the output shaft 41 that subtracts the pendulum motor is connected with the driving wheel 33 of whirligig 3 by drive disk assembly 7, and the shell 42 that subtracts the output shaft 41 of pendulum motor is fixedlyed connected with the axle sleeve type shell 34 of whirligig 3.Drive disk assembly 7 can be made of driving-chain, driving-belt or engaged transmission gear train.Gas switch 9 is low-pressure nitrogen switch or low pressure hydrogen switch.Be provided with sprue gate 12 on the top of ingot mould 1, be furnished with shape for hat plug GY in the sprue gate 12, the aperture 6 at ingot mould 1 top is skewed, and 12 sidewall passes, is communicated with by the inner chamber of sprue gate with ingot mould 1 from the sprue gate.Be provided with a rotary air valve NK1 before the described gas switch 9.
The lowering or hoisting gear 5 that present embodiment adopts is manually controlled or electric controller for Z type lever, is made of platform 51, Z type crane 52 and driving mechanism 53.Driving mechanism 53 can be manually control or electronic control.Described ingot mould 1 is a porous crack ingot mould.
Operation principle: at first actuating motor 4, make vertical shaft 32 drive ingot mould 1 by chain driving-chain 7 and are in rotation status together; Open low-pressure nitrogen switch 9 and air valve NK1 then, make axial hole 8 and the pore 11 of the ingot mould 1 bottom inner chamber that enter ingot mould 1 of nitrogen by vertical shaft 32, top aperture 6 from ingot mould 1 injects high pressure nitrogen NP2 again, realize that high low speed flowing nitrogen fills die cavity, during cast, die cavity has been filled with nitrogen, has avoided molten steel and air generation oxidation reaction; Molten steel is sprayed by high pressure draught and atomizes and freezes solidly in the ingot mould of porous seam, and high pressure draught has guaranteed the degree of purity of steel crystallization with objectionable being blown in the precipitation chamber in the molten steel simultaneously.Combination ingot mould integral body places on the hoistable platform of lowering or hoisting gear 5, can be with product Z to required, and the control adjustable height makes ingot mould whole realization quick change and combination.
Specific embodiment 2:
Described inert gas is a hydrogen, and described lowering or hoisting gear 5 is spiral lowering or hoisting gear, and described lowering or hoisting gear 5 can adopt manual control or electronic control.Other are identical with specific embodiment 1.
Among other embodiment of the present invention, the production method of oxidation resistant and centrifugal type static ingot may further comprise the steps:
1) ingot mould is fixed on the whirligig, adjust whirligig height, make ingot mould near the molten steel sprue gate;
2) start whirligig, make ingot mould be in rotation status; This goes on foot described whirligig, can be other whirligigs outside the specific embodiment 1;
3) bottom from ingot mould feeds low pressure or low speed inert gas to the ingot mould cavity, and injects at a high speed or high-pressure inert gas from the top of ingot mould, makes in the cavity of ingot mould to be full of inert gas;
4) under being in rotation status, punching block pours into a mould molten steel; During cast,, it is isolated to enter molten steel in the steel ingot die cavity and air, and molten steel atomize under high velocity air sprays and freezes solidly in the ingot mould, and the impurity in the molten steel falls into to precipitate in the chamber in the acting in conjunction of centrifugal force and high velocity air and is removed;
5) after molten steel was filled with the steel ingot die cavity, cast finished, and closed the low pressure gas valve of ingot mould bottom and the high speed air valve at top, and stopped motor, promptly made ingot mould.
Claims (10)
1, the production method of oxidation resistant and centrifugal type static ingot is characterized in that may further comprise the steps:
1) ingot mould is fixed on the whirligig, adjust whirligig height, make ingot mould near the molten steel sprue gate;
2) start whirligig, make ingot mould be in rotation status;
3) bottom from ingot mould feeds low pressure or low speed inert gas to the ingot mould cavity, and injects at a high speed or high-pressure inert gas from the top of ingot mould, makes in the cavity of ingot mould to be full of inert gas;
4) under being in the state of rotation, ingot mould begins to pour into a mould molten steel, the molten steel and the air that enter in the steel ingot die cavity are isolated, molten steel atomize under high velocity air sprays and freezes solidly in the ingot mould, and the impurity in the molten steel falls into to precipitate in the chamber in the acting in conjunction of centrifugal force and high velocity air and is removed;
5) after molten steel was filled with the steel ingot die cavity, cast finished, and closed the low pressure gas valve of ingot mould bottom and the high speed air valve at top, and stopped motor, promptly made ingot mould.
2, the production method of oxidation resistant and centrifugal type static ingot as claimed in claim 1 is characterized in that: described ingot mould (1) is a porous crack ingot mould.
3, the production method of oxidation resistant and centrifugal type static ingot as claimed in claim 1 is characterized in that: used inert gas is nitrogen or hydrogen in preceding method.
4, the isolated plant of the production method of oxidation resistant and centrifugal type static ingot according to claim 1 is characterized in that: comprise ingot mould (1), positioner (2), whirligig (3) and drive unit (4); Ingot mould (1) is fixed in the positioner (2), positioner (2) is fixed on the upper end of whirligig (3), one end at described ingot mould (1) top has the aperture (6) that always feeds in the steel ingot die cavity, drive unit (4) is fixedlyed connected with the shell of whirligig (3), the clutch end of drive unit (4) is connected with the input of whirligig (3), and the clutch end of whirligig (3) is fixedlyed connected with positioner (2); The bottom of ingot mould (1) is provided with pore (11).
5, as the isolated plant of the production method of oxidation resistant and centrifugal type static ingot as described in the claim 4, it is characterized in that: the bottom of aforementioned whirligig also is provided with lowering or hoisting gear (5), and the bottom of whirligig (3) is connected with lowering or hoisting gear (5); Described lowering or hoisting gear (5) is Z type lever lowering or hoisting gear or spiral lowering or hoisting gear.
6, as the isolated plant of the production method of oxidation resistant and centrifugal type static ingot as described in claim 4 or 5, it is characterized in that: described whirligig (3) is made of connector (31), vertical shaft (32), driving wheel (33) and axle sleeve type shell (34); Fixedly connected with the bottom of positioner (2) in the top of connector (31), inner chamber is fixedlyed connected with the top of vertical shaft (32), driving wheel (33) is fixed on the middle part of vertical shaft (32), and driving wheel (33) is connected with the clutch end of drive unit (4) by drive disk assembly (7); Upper and lower two sides of axle sleeve type shell (34) are connected with vertical shaft (32) by bearing respectively; The axle center of vertical shaft (32) is provided with an axially extending bore (8) that is communicated with ingot mould (1) bottom pore.
7, as the isolated plant of the production method of oxidation resistant and centrifugal type static ingot as described in claim 4 or 5, it is characterized in that: drive unit (4) can constitute by subtracting the pendulum motor, the output shaft (41) that subtracts the pendulum motor is connected with the driving wheel (33) of whirligig (3) by drive disk assembly (7), and the shell (42) that subtracts the output shaft (41) of pendulum motor is fixedlyed connected with the axle sleeve type shell (34) of whirligig (3).
8, as the isolated plant of the production method of oxidation resistant and centrifugal type static ingot as described in claim 4 or 5, it is characterized in that: drive disk assembly (7) is made of driving-chain, driving-belt or engaged transmission gear train.
9, as the isolated plant of the production method of oxidation resistant and centrifugal type static ingot as described in claim 4 or 5, it is characterized in that: described gas switch (9) is low-pressure nitrogen switch or low pressure hydrogen switch.
10, as the isolated plant of the production method of oxidation resistant and centrifugal type static ingot as described in claim 4 or 5, it is characterized in that: the top of ingot mould (1) is provided with sprue gate (12), is furnished with shape for hat plug (GY) in the sprue gate (12), the aperture (6) at ingot mould (1) top is skewed, and the sidewall of (12) passes, is communicated with by the inner chamber of sprue gate with ingot mould (1) from the sprue gate; The preceding rotary valve (NK1) that is provided with of described gas switch (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610132360 CN101032747A (en) | 2006-12-27 | 2006-12-27 | Producing method of oxidation resistant and centrifugal type iron mold formed by founding and the special device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 200610132360 CN101032747A (en) | 2006-12-27 | 2006-12-27 | Producing method of oxidation resistant and centrifugal type iron mold formed by founding and the special device |
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| CN101032747A true CN101032747A (en) | 2007-09-12 |
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| CN 200610132360 Pending CN101032747A (en) | 2006-12-27 | 2006-12-27 | Producing method of oxidation resistant and centrifugal type iron mold formed by founding and the special device |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717229A (en) * | 2011-12-26 | 2012-10-10 | 青岛正大铸造有限公司 | Production process for cylinder and doffer of centrifugal casting cotton combing machine |
| CN104588626A (en) * | 2015-02-05 | 2015-05-06 | 王金生 | Casting method and casting equipment for implementing casting method |
| CN104972092A (en) * | 2015-07-31 | 2015-10-14 | 金培力 | Horizontally-moving multi-die casting house with jetting work rooms |
| CN106180625A (en) * | 2016-08-19 | 2016-12-07 | 浙江双飞无油轴承股份有限公司 | Closed type centrifugal casting method |
| CN112846124A (en) * | 2021-01-08 | 2021-05-28 | 王兴足 | Anticorrosive casting integrated device of copper base alloy |
-
2006
- 2006-12-27 CN CN 200610132360 patent/CN101032747A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102717229A (en) * | 2011-12-26 | 2012-10-10 | 青岛正大铸造有限公司 | Production process for cylinder and doffer of centrifugal casting cotton combing machine |
| CN104588626A (en) * | 2015-02-05 | 2015-05-06 | 王金生 | Casting method and casting equipment for implementing casting method |
| CN104972092A (en) * | 2015-07-31 | 2015-10-14 | 金培力 | Horizontally-moving multi-die casting house with jetting work rooms |
| CN104972092B (en) * | 2015-07-31 | 2017-03-01 | 金培力 | Injection operating room translation many die cast room |
| CN106180625A (en) * | 2016-08-19 | 2016-12-07 | 浙江双飞无油轴承股份有限公司 | Closed type centrifugal casting method |
| CN112846124A (en) * | 2021-01-08 | 2021-05-28 | 王兴足 | Anticorrosive casting integrated device of copper base alloy |
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Open date: 20070912 |