CN104745767B - A kind of deoxidation steel shot aluminum production method - Google Patents
A kind of deoxidation steel shot aluminum production method Download PDFInfo
- Publication number
- CN104745767B CN104745767B CN201510156578.0A CN201510156578A CN104745767B CN 104745767 B CN104745767 B CN 104745767B CN 201510156578 A CN201510156578 A CN 201510156578A CN 104745767 B CN104745767 B CN 104745767B
- Authority
- CN
- China
- Prior art keywords
- aluminium
- steel
- aluminium liquid
- mold
- steel shot
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
nullThe invention belongs to produce deoxidation steel shot aluminum technical field，It is specifically related to a kind of deoxidation steel shot aluminum production method，The method uses after first being melted by aluminium liquid and is injected in holding furnace，Holding furnace is carried out the control of temperature，When after the temperature stabilization in holding furnace，After opening holding furnace, aluminium liquid is injected in chute and injects in steel shot aluminum mold after shunting disk，At the same time，Ready steel sand is given in aluminium liquid uniformly by oscillating feeder and is added，In this process，On the one hand ensure that mobility and the coefficient of viscosity of aluminium liquid，On the other hand ensure that the burn out rate that aluminium liquid is extremely low in chute，Owing to temperature of aluminum liquid being controlled at 700 750 DEG C，And use the mode of oscillating feeder to carry out the control to steel sand amount，Make steel sand distribution in aluminium liquid the most uniform，Yield rate is high，Ensure that stability and the uniformity of product.
Description
Technical field
The invention belongs to produce deoxidation steel shot aluminum technical field, be specifically related to a kind of deoxidation steel shot aluminum production method.
Background technology
Along with the development of steel industry, downstream user is more and more higher to the requirement of steel product quality.And as harmful element a kind of in steel, oxygen has highly important impact to steel product quality.Oxygen content in steel is too high not only to be made to produce substantial amounts of oxide in steel and is mingled with, time more serious, in process of setting, in steel, oxygen separates out formation pin hole and rimhole in a gaseous form, have a strong impact on steel performance, and deoxidation effect quality has been heavily dependent on the deoxidizing capacity of deoxidier.
Deoxidier predominantly fine aluminium deoxidier that at present iron and steel enterprise uses and meet deoxidier.Wherein fine aluminium deoxidier mainly has fine aluminium block, steel-core-aluminium and steel shot aluminum.Owing to aluminium density is little, fine aluminium block the most easily floats on molten steel surface, causes its deoxidation effect difference recovery rate low.And steel-core-aluminium is low due to aluminium fusing point, sinking watching easily causes steel core abjection so that deoxidier shortened with the steel contacts time, caused deoxidation effect to be deteriorated, and therefore, did not all meet use requirement.
In steel shot aluminum, steel sand is uniformly distributed in inside aluminium block, is effectively increased the density of aluminium block, and will not produce during melting and be similar to the situation that steel-core-aluminium product steel core is deviate from from aluminium block, substantially increases the deoxidation effect of product.
Steel shot aluminum produces the continuous casting and rolling method that all uses at present, technical scheme as disclosed by the patent document of Application No. 200910065307.9, its typical process flow is: by pipeline, steel sand is added aluminium bar continuous casting and tandem rolling machine casting ladle, through crystallization cooled and solidified, required steel sand aluminium block is obtained after rolling, cutting, in above-mentioned patent document, use flowmeter that the amount of steel sand is controlled, but steel sand distribution situation in aluminium liquid is not processed, cause steel sand distributed pole in aluminium liquid uneven.
In existing production technology, owing to holding furnace is not preheated by the initial stage, aluminium liquid is directly injected into after aluminium spout owing to temperature is unstable, impact is caused to the follow-up steel shot aluminum quality built, and when giving interpolation steel sand in aluminium liquid in the past, it is all that the Action of Gravity Field by steel sand enters in aluminium liquid that steel sand is located in feed bin, in the process, steel sand is random distribution in aluminium liquid, owing to steel sand is uniformly distributed in inside aluminium block, it is effectively increased the density of aluminium block, and will not produce during melting and be similar to the situation that steel-core-aluminium product steel core is deviate from from aluminium block, therefore, control steel sand being uniformly distributed in aluminium liquid the product quality improving steel shot aluminum is particularly important.
Summary of the invention
Present invention aim to provide a kind of employing, after holding furnace is preheated, aluminium liquid is injected aluminium spout, avoid the problem that temperature of aluminum liquid instability causes the follow-up steel shot aluminum quality built instability, using after arranging oscillating feeder, steel sand can uniformly fall into the steel shot aluminum production method of the mode in aluminium liquid simultaneously.
The present invention is achieved through the following technical solutions:
A kind of deoxidation steel shot aluminum production method, the method is carried out as steps described below:
(1) metallic aluminium is heated to 780-850 DEG C in two-maing ladle, it is injected in holding furnace, after 25-30min, adjusts mixing in-furnace temperature to 730-800 DEG C, opening after aluminium liquid is injected in aluminium spout by holding furnace and enter shunting disk, aluminium liquid injects in steel shot aluminum mold after shunting disk；
(2) simultaneously, being placed in high hopper by the steel sand of a diameter of 1-3mm, high hopper PLC control valve is connected with oscillating feeder, and after starting high hopper PLC control valve, steel sand is fallen into uniformly in mold by oscillating feeder and mixes with aluminium liquid；
(3) according to producing needs, by controlling aluminium flow controller and oscillating feeder, it is ensured that aluminium liquid weight in each mold is 15-20kg, and steel sand weight in each mold is 5-7kg；
(4) once being cooled down by the steel shot aluminum in mold, chilling temperature is 200-500 DEG C, carries stripper apparatus by casting machine and separates with casting machine；
(5) through water spray, carry out cooling twice, chilling temperature be 30-150 DEG C after stacking, packing, finally warehouse-in deposit.
As a kind of preferred embodiment of the present invention, the method is carried out as steps described below:
(1) metallic aluminium being heated in two-maing ladle 800 DEG C, be injected in holding furnace, after 26min, adjust mixing in-furnace temperature to 780 DEG C, open after aluminium liquid is injected in aluminium spout by holding furnace and enter shunting disk, aluminium liquid injects in steel shot aluminum mold after shunting disk；
(2) simultaneously, being placed in high hopper by the steel sand of a diameter of 1-3mm, high hopper PLC control valve is connected with oscillating feeder, and after starting high hopper PLC control valve, steel sand is fallen into uniformly in mold by oscillating feeder and mixes with aluminium liquid；
(3) according to producing needs, by controlling aluminium flow controller and oscillating feeder, it is ensured that aluminium liquid weight in each mold is 18kg, and steel sand weight in each mold is 6kg；
(4) once being cooled down by the steel shot aluminum in mold, chilling temperature is 250 DEG C, carries stripper apparatus by casting machine and separates with casting machine；
(5) through water spray, carry out cooling twice, chilling temperature be 50 DEG C after stacking, packing, finally warehouse-in deposit.
In aluminium liquid used in above-mentioned method for optimizing, aluminium content is not less than the 99% of mass percent, and the impurity content in steel sand is less than the 0.4% of mass percent, and producing aluminium content in the steel shot aluminum product obtained is the 75 ± 2% of mass percent.
Compared with prior art, the beneficial effects of the present invention is:
On the premise of existing remelting aluminium ingot production system, increase vibrating feed machine equipment so that neither affect remelting aluminum ingot casting production system, deoxidation steel shot aluminum can be produced again, it is achieved that dual-use, improve operating efficiency；In process of production, owing to have employed, metallic aluminium is heated to 780-850 DEG C in two-maing ladle, it is injected in holding furnace, after 25-30min, adjust mixing in-furnace temperature to 730-800 DEG C, open after aluminium liquid is injected in aluminium spout by holding furnace and enter shunting disk, aluminium liquid injects the process in steel shot aluminum mold after shunting disk, make on the one hand to ensure that mobility and the coefficient of viscosity of aluminium liquid, on the other hand ensure that the burn out rate that aluminium liquid is extremely low in chute, owing to temperature of aluminum liquid being controlled at 700-750 DEG C, and use the mode of oscillating feeder to carry out the control to steel sand amount, make steel sand distribution in aluminium liquid the most uniform, yield rate is high, ensure that stability and the uniformity of product.
Accompanying drawing explanation
Fig. 1 is the process chart of the present invention.
Detailed description of the invention
Below in conjunction with the accompanying drawings the present invention is described further:
As it is shown in figure 1, a kind of deoxidation steel shot aluminum production method, the method is carried out as steps described below:
(1) metallic aluminium is heated to 780-850 DEG C in two-maing ladle, it is injected in holding furnace, after 25-30min, adjusts mixing in-furnace temperature to 730-800 DEG C, opening after aluminium liquid is injected in aluminium spout by holding furnace and enter shunting disk, aluminium liquid injects in steel shot aluminum mold after shunting disk；
(2) simultaneously, being placed in high hopper by the steel sand of a diameter of 1-3mm, high hopper PLC control valve is connected with oscillating feeder, and after starting high hopper PLC control valve, steel sand is fallen into uniformly in mold by oscillating feeder and mixes with aluminium liquid；
(3) according to producing needs, by controlling aluminium flow controller and oscillating feeder, it is ensured that aluminium liquid weight in each mold is 15-20kg, and steel sand weight in each mold is 5-7kg；
(4) once being cooled down by the steel shot aluminum in mold, chilling temperature is 200-500 DEG C, carries stripper apparatus by casting machine and separates with casting machine；
(5) through water spray, carry out cooling twice, chilling temperature be 30-150 DEG C after stacking, packing, finally warehouse-in deposit.
As a kind of preferred embodiment of the present invention, the method is carried out as steps described below:
(1) metallic aluminium being heated in two-maing ladle 800 DEG C, be injected in holding furnace, after 26min, adjust mixing in-furnace temperature to 780 DEG C, open after aluminium liquid is injected in aluminium spout by holding furnace and enter shunting disk, aluminium liquid injects in steel shot aluminum mold after shunting disk；
(2) simultaneously, being placed in high hopper by the steel sand of a diameter of 1-3mm, high hopper PLC control valve is connected with oscillating feeder, and after starting high hopper PLC control valve, steel sand is fallen into uniformly in mold by oscillating feeder and mixes with aluminium liquid；
(3) according to producing needs, by controlling aluminium flow controller and oscillating feeder, it is ensured that aluminium liquid weight in each mold is 18kg, and steel sand weight in each mold is 6kg；
(4) once being cooled down by the steel shot aluminum in mold, chilling temperature is 250 DEG C, carries stripper apparatus by casting machine and separates with casting machine；
(5) through water spray, carry out cooling twice, chilling temperature be 50 DEG C after stacking, packing, finally warehouse-in deposit.
In aluminium liquid used in above-mentioned method for optimizing, aluminium content is not less than the 99% of mass percent, and the impurity content in steel sand is less than the 0.4% of mass percent, and producing aluminium content in the steel shot aluminum product obtained is the 75 ± 2% of mass percent.
On the premise of existing remelting aluminium ingot production system, increase vibrating feed machine equipment so that neither affect remelting aluminum ingot casting production system, deoxidation steel shot aluminum can be produced again, it is achieved that dual-use, improve operating efficiency；In process of production, owing to have employed, metallic aluminium is heated to 780-850 DEG C in two-maing ladle, it is injected in holding furnace, after 25-30min, adjust mixing in-furnace temperature to 730-800 DEG C, open after aluminium liquid is injected in aluminium spout by holding furnace and enter shunting disk, aluminium liquid injects the process in steel shot aluminum mold after shunting disk, make on the one hand to ensure that mobility and the coefficient of viscosity of aluminium liquid, on the other hand ensure that the burn out rate that aluminium liquid is extremely low in chute, owing to temperature of aluminum liquid being controlled at 700-750 DEG C, and use the mode of oscillating feeder to carry out the control to steel sand amount, make steel sand distribution in aluminium liquid the most uniform, yield rate is high, ensure that stability and the uniformity of product.
Claims (3)
1. a deoxidation steel shot aluminum production method, it is characterised in that: the method is carried out as steps described below:
(1) metallic aluminium is heated to 780-850 DEG C in two-maing ladle, it is injected in holding furnace, after 25-30min, adjusts mixing in-furnace temperature to 730-800 DEG C, opening after aluminium liquid is injected in aluminium spout by holding furnace and enter shunting disk, aluminium liquid injects in steel shot aluminum mold after shunting disk；
(2) simultaneously, being placed in high hopper by the steel sand of a diameter of 1-3mm, high hopper PLC control valve is connected with oscillating feeder, and after starting high hopper PLC control valve, steel sand is fallen into uniformly in mold by oscillating feeder and mixes with aluminium liquid；
(3) according to producing needs, by controlling aluminium flow controller and oscillating feeder, it is ensured that aluminium liquid weight in each mold is 15-20kg, and steel sand weight in each mold is 5-7kg；
(4) once being cooled down by the steel shot aluminum in mold, chilling temperature is 200-500 DEG C, carries stripper apparatus by casting machine and separates with casting machine；
(5) through water spray, carry out cooling twice, chilling temperature be 30-150 DEG C after stacking, packing, finally warehouse-in deposit.
2. a kind of deoxidation steel shot aluminum production method as claimed in claim 1, it is characterised in that: the method is carried out as steps described below:
(1) metallic aluminium being heated in two-maing ladle 800 DEG C, be injected in holding furnace, after 26min, adjust mixing in-furnace temperature to 780 DEG C, open after aluminium liquid is injected in aluminium spout by holding furnace and enter shunting disk, aluminium liquid injects in steel shot aluminum mold after shunting disk；
(2) simultaneously, being placed in high hopper by the steel sand of a diameter of 1-3mm, high hopper PLC control valve is connected with oscillating feeder, and after starting high hopper PLC control valve, steel sand is fallen into uniformly in mold by oscillating feeder and mixes with aluminium liquid；
(3) according to producing needs, by controlling aluminium flow controller and oscillating feeder, it is ensured that aluminium liquid weight in each mold is 18kg, and steel sand weight in each mold is 6kg；
(4) once being cooled down by the steel shot aluminum in mold, chilling temperature is 250 DEG C, carries stripper apparatus by casting machine and separates with casting machine；
(5) through water spray, carry out cooling twice, chilling temperature be 50 DEG C after stacking, packing, finally warehouse-in deposit.
3. a kind of deoxidation steel shot aluminum production method as claimed in claim 1 or 2, it is characterized in that: in the aluminium liquid used in the method, aluminium content is not less than the 99% of mass percent, impurity content in steel sand is less than the 0.4% of mass percent, and producing aluminium content in the steel shot aluminum product obtained is the 75 ± 2% of mass percent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510156578.0A CN104745767B (en) | 2015-04-03 | 2015-04-03 | A kind of deoxidation steel shot aluminum production method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510156578.0A CN104745767B (en) | 2015-04-03 | 2015-04-03 | A kind of deoxidation steel shot aluminum production method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104745767A CN104745767A (en) | 2015-07-01 |
| CN104745767B true CN104745767B (en) | 2016-08-17 |
Family
ID=53586014
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510156578.0A Active CN104745767B (en) | 2015-04-03 | 2015-04-03 | A kind of deoxidation steel shot aluminum production method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104745767B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111455125B (en) * | 2020-03-17 | 2021-12-28 | 唐山不锈钢有限责任公司 | Production method for increasing continuous casting heat of high-aluminum steel |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002294327A (en) * | 2001-03-30 | 2002-10-09 | Nippon Steel Corp | High cleanliness steel and production method therefor |
| CN1844425A (en) * | 2006-04-29 | 2006-10-11 | 登封电厂集团铝合金有限公司 | Process for production of casting aluminium silicon alloy and device thereof |
| CN101596589A (en) * | 2009-06-30 | 2009-12-09 | 河南省西保冶材集团有限公司 | A kind of production method of steel sand aluminium |
-
2015
- 2015-04-03 CN CN201510156578.0A patent/CN104745767B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002294327A (en) * | 2001-03-30 | 2002-10-09 | Nippon Steel Corp | High cleanliness steel and production method therefor |
| CN1844425A (en) * | 2006-04-29 | 2006-10-11 | 登封电厂集团铝合金有限公司 | Process for production of casting aluminium silicon alloy and device thereof |
| CN101596589A (en) * | 2009-06-30 | 2009-12-09 | 河南省西保冶材集团有限公司 | A kind of production method of steel sand aluminium |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104745767A (en) | 2015-07-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100467164C (en) | Method for preventing liquid fluctuating of continuous casting peritectic steel crystallizer | |
| CN103121092B (en) | A kind of continuous casting blooms slighter compress technique based on end electromagnetic agitation | |
| CN105598402B (en) | A kind of steel continuous casting crystallizer feeds core-spun yarn and the dynamic control method of line feeding process | |
| CN105296810A (en) | Continuous casting and continuous rolling production process of high-strength aluminum alloy rod | |
| CN103433438A (en) | Method for controlling quality of bloom hypo-peritectic steel continuous casting billet | |
| CN111187992B (en) | Production method of continuous casting billet of wire rod for cutting diamond wire | |
| CN104117644B (en) | A kind of metal strand apparatus for continuously production that compression casting is provided and method | |
| CN105364042A (en) | Method for controlling crystalline structure uniformity of large-section heavy rail steel cast blank | |
| CN109351928A (en) | A method of preventing hypo-peritectic steel surface longitudinal crack of slab | |
| CN104399929A (en) | Method for reducing longitudinal division of weather-proof steel continuously cast slab | |
| CN110777261A (en) | Surface crack control method for preparing titanium and titanium alloy ingots by electron beam cold bed furnace | |
| CN102634728A (en) | Small square Billet continuous casting production technique of Fe-Mn-C high-manganese steel | |
| CN106270439B (en) | A kind of Spraying Water of Nozzles in Secondary Cooling method for improving continuous casting billet gross segregation | |
| CN107186190A (en) | A kind of casting-rolling production method of the aluminium alloy plate of high-intensity wide-amplitude 3003 | |
| CN103498075A (en) | Preparation method of deformation-resistant high-temperature alloy and deformation-resistant high-temperature alloy part | |
| CN104741560B (en) | A kind of method reducing the transverse corner crack stricture of vagina of steel containing niobium | |
| CN104745767B (en) | A kind of deoxidation steel shot aluminum production method | |
| CN103962525B (en) | A kind of cooling means for suppressing slab grain-boundary crack | |
| CN111347020A (en) | Method for controlling internal quality of 82B steel type continuous casting billet in steelmaking continuous casting process | |
| CN104646641B (en) | Pulling rate reduction control method and tundish changing control method in continuous casting system | |
| CN109022661B (en) | Method for reducing heavy rail steel rail damage rate | |
| CN102470429B (en) | The continuous casting process of shockproof I-beam base | |
| CN105234377A (en) | Method for solving loosening problem of directional solidification column crystal and single-crystal blade tenon and blade module | |
| CN105251954B (en) | A kind of ingot steel casting mould and pouring procedure | |
| CN109047685A (en) | A method of preparing steel ingot |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |