CN105195695B - A kind of semi-continuous casting brass is with lubricator and preparation method thereof - Google Patents
A kind of semi-continuous casting brass is with lubricator and preparation method thereof Download PDFInfo
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- CN105195695B CN105195695B CN201510725557.6A CN201510725557A CN105195695B CN 105195695 B CN105195695 B CN 105195695B CN 201510725557 A CN201510725557 A CN 201510725557A CN 105195695 B CN105195695 B CN 105195695B
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Abstract
The invention discloses a kind of semi-continuous casting brass with lubricator and preparation method thereof, this lubricant is using the dewatering borax of 75~95 parts by weight and the dehydration industry salt of 5~25 parts by weight as raw material, its uniform mixing be can be prepared by into semi-continuous casting brass with lubricator, use lubricant made from the method, because the Na ions in Nacl have preferable surface-active, the viscosity of melt can be reduced, advantageously reduce the surface tension of liquid borax, it is mingled with so as to reduce borax, so that borax will not be carried secretly in copper liquid process of setting, so as to effectively prevent the appearance of hole.
Description
Technical field
The present invention relates to semi-continuous casting brass with lubricator preparation field, more particularly to it is a kind of using borax and Nacl as
The semi-continuous casting brass of raw material is with lubricator and its compound method.
Background technology
Country's semi-continuous casting brass uses borax as lubricant at present, and borax main function is：Dewatering borax is added
On copper liquid in crystallizer, become molten condition and be covered on copper liquid level, prevent high-temperature copper liquid from being contacted with the direct of air, keep away
Exempt from melt because oxidation causes slag inclusion, it is ensured that castability；Borax glass forms lubricating layer between ingot casting and crystallizer inwall,
Reduce cast resistance, it is to avoid ingot casting scull drawing crack, reduce ingot casting surface cold shut and rough defect, improve casting
Ingot surface quality.
But ingot casting is produced because being mingled with borax inside hole defect, hole using single borax as lubricant
Generally there is borax to be mingled with, the hole on ingot casting surface is pressed to be formed behind white slight crack, milling face by hot rolling and opened on made-up belt surface
Layering is split, it is necessary to shut down grinding process, influences milling face production efficiency；Deep slight crack can not polish totally, and during milling face
The slight crack occurred in made-up belt lower surface can not carry out grinding process, will produce harmful effect to later process quality, causing need not
That wants scraps, and influences lumber recovery.The Crack cause of ingot casting surface hole defect defect is that entrainment borax is formed in copper liquid process of setting.Adopt
With single borax covering can reduce the mobility of liquid metal, increase melt viscosity, easily cause borax be mingled with to be formed hole lack
Fall into.
The content of the invention
For the above-mentioned problems in the prior art, the invention provides a kind of semi-continuous casting brass with lubricator,
Avoid the hole defect produced using single borax.
Present invention also offers a kind of preparation method of semi-continuous casting brass with lubricator, the raw material of prepared lubricant
Composition is simple, and only comprising two kinds of components of borax and Nacl, Nacl is the base of chemical industry that is cheap and being easily obtained
One of this raw material, adds a small amount of Nacl and can not only with lubricator be saved as semi-continuous casting brass being produced into borax
This, and influence of the ingot casting hole to copper strips quality can be eliminated.
The invention provides a kind of semi-continuous casting brass with lubricator, based on 100 parts of weight, by following material and weight
Part composition：Dewatering borax 75~95, dehydration industry salt 5~25；Wherein dewatering borax is made by borax through 500~600 DEG C of bakings,
Dehydration industry salt is made by Nacl through 300~350 DEG C of bakings, and dewatering borax and the dehydration industry salt is particle diameter size
For 0.1~0.15mm powder.
Further, the preparation method of the dewatering borax is：Borax through 500~600 DEG C of afterheat bakings 0.5~2 hour,
Stop continuing to toast 2~8 hours after heating, treat that temperature is down to 30~100 DEG C of taking-ups.
The preparation method of the dehydration industry salt is：Nacl stopped through 300~350 DEG C of afterheat bakings 0.5~2 hour
Continue to toast 2~8 hours after heating, treat that temperature is down to 30~100 DEG C of taking-ups.
Present invention also offers a kind of preparation method of semi-continuous casting brass with lubricator, comprise the following steps：
(a) dewatering borax is made through 500~600 DEG C of bakings in borax, then be ground into particle diameter size for 0.1~
0.15mm powder, is made dewatering borax powder；
(b) dehydration industry salt is made through 300~350 DEG C of bakings in Nacl, then it is 0.1 to be ground into particle diameter size
~0.15mm powder, is made dehydration industry salt powder；
(c) based on 100 parts of weight, by dewatering borax powder made from (a) the step of 75~95 parts of weight and 5~25 parts of weights
Dehydration industry salt powder made from the step of amount (b), uniform mixing, you can semi-continuous casting brass is made with lubricator.
Further, step (a) is specifically included:Borax is toasted 0.5~2 hour through 500~600 DEG C, stops heating follow-up
Continuous baking 2~8 hours, treats that temperature is down to 30~100 DEG C of taking-ups, dewatering borax is made, then be ground into particle diameter size
For 0.1~0.15mm powder, dewatering borax powder is made.Again will dehydration after temperature is down to 30~100 DEG C in dehydration
Borax takes out, and is directly exposed to absorb water in air under high temperature to prevent the borax after anti-avulsion water.
Step (b) is specifically included:Nacl is toasted 0.5~2 hour through 300~350 DEG C, stops continuing to toast 2 after heating
~8 hours, treat that temperature is down to 30~100 DEG C of taking-ups, dehydration industry salt is made, then it is 0.1 to be ground into particle diameter size
~0.15mm powder, is made dehydration industry salt powder.
Lubricant made from above-mentioned steps (c) is added during the cast of brass, by normal addition manner, lubricant melts
Copper liquid surface is completely covered after melting, cladding thickness is controlled in 1~2mm.
It is simple that the mobility of liquid metal can be reduced using borax covering, increase melt viscosity, easily cause borax and be mingled with
Form hole defect.The present invention in borax by adding a certain proportion of Nacl, because the Na ions in Nacl have
Preferable surface-active, can reduce the viscosity of melt, advantageously reduce the surface tension of liquid borax, so as to reduce borax folder
It is miscellaneous so that will not to carry borax secretly in copper liquid process of setting, so as to effectively prevent the appearance of hole.Use the boron of addition Nacl
Sand is used for brass semi-continuous casting as lubricant, and hole defect does not occur in ingot casting surface, ingot casting during milling face not yet
It was found that slight crack defect, avoids polishing, reduce scrappage during milling face, influence of the ingot casting hole to copper strips quality is eliminated.This
Outside, after addition Nacl, the mobility of liquid borax is improved, makes the liquid borax lubricating layer point between ingot casting and crystallizer inwall
Cloth is more uniform, and lubricant effect improves, and reduces cast resistance so that ingot casting surface is more smooth.
The raw material composition of prepared lubricant of the invention is simple, and only comprising two kinds of components of borax and Nacl, Nacl is
One of cheap and base stock of chemical industry for being easily obtained, adds a small amount of Nacl as semicontinuous casting in borax
Production cost can not only with lubricator be saved by making brass, and can eliminate influence of the ingot casting hole to copper strips quality.
Embodiment
Embodiment 1
A kind of semi-continuous casting brass with lubricator, based on 100 parts of weight, is made up of following material and parts by weight：Dehydration
75 parts of borax, 25 parts of dehydration industry salt.
The preparation method of above-mentioned semi-continuous casting brass with lubricator is：
(a) 500kg boraxs are fitted into metal bucket to be put into well formula resistance furnace and are warming up to 500 DEG C, afterheat baking 2 hours breaks
Continue to toast 2 hours after electricity, treat that furnace temperature is reduced to 30 DEG C of taking-ups, dewatering borax is made, particle is ground into pulverizer straight
Footpath size is 0.1~0.15mm powder, you can dewatering borax powder is made；
(b) 100kg Nacls are fitted into metal bucket to be put into shaft furnace and are warming up to 300 DEG C, afterheat baking 2 hours, power-off
Continue to toast 2 hours afterwards, treat that furnace temperature is reduced to 30 DEG C of taking-ups, dehydration industry salt is made, particle is ground into pulverizer straight
Footpath size is 0.1~0.15mm powder, you can dehydration industry salt powder is made；
(c) based on 100 parts of weight, the dewatering borax powder of 75 parts of weight and the dehydration industry salt of 25 parts of weight are weighed respectively
Powder, uniform mixing, you can semi-continuous casting brass is made with lubricator.
(d) brass semicontinuous casting technique, other casting technique parameter constant, the lubrication prepared using step (c) are directed to
Agent is as lubrication of crystallizer agent, 100 brass ingot castings of cast, and observed and recorded the ingot casting quantity of hole occurs, on single ingot casting
Pore quantity and bore hole size.
Embodiment 2
A kind of semi-continuous casting brass with lubricator, based on 100 parts of weight, is made up of following material and parts by weight：Dehydration
82 parts of borax, 18 parts of dehydration industry salt.
The preparation method of above-mentioned semi-continuous casting brass with lubricator is：
(a) 500kg boraxs are fitted into metal bucket to be put into well formula resistance furnace and are warming up to 600 DEG C, afterheat baking 1 hour breaks
Continue to toast 4 hours after electricity, treat that furnace temperature is reduced to 50 DEG C of taking-ups, dewatering borax is made, particle is ground into pulverizer straight
Footpath size is 0.1~0.15mm powder, you can dewatering borax powder is made；
(b) 100kg Nacls are fitted into metal bucket to be put into shaft furnace and are warming up to 350 DEG C, afterheat baking 1 hour, power-off
Continue to toast 4 hours afterwards, treat that furnace temperature is reduced to 50 DEG C of taking-ups, dehydration industry salt is made, particle is ground into pulverizer straight
Footpath size is 0.1~0.15mm powder, you can dehydration industry salt powder is made；
(c) based on 100 parts of weight, the dewatering borax powder of 82 parts of weight and the dehydration industry salt of 18 parts of weight are weighed respectively
Powder, uniform mixing, you can semi-continuous casting brass is made with lubricator.
(d) brass semicontinuous casting technique, other casting technique parameter constant, the lubrication prepared using step (c) are directed to
Agent is as lubrication of crystallizer agent, 100 brass ingot castings of cast, and observed and recorded the ingot casting quantity of hole occurs, on single ingot casting
Pore quantity and bore hole size.
Embodiment 3
A kind of semi-continuous casting brass with lubricator, based on 100 parts of weight, is made up of following material and parts by weight：Dehydration
88 parts of borax, 12 parts of dehydration industry salt.
The preparation method of above-mentioned semi-continuous casting brass with lubricator is：
(a) 500kg boraxs are fitted into metal bucket to be put into well formula resistance furnace and are warming up to 550 DEG C, afterheat baking 1.5 hours,
Continue to toast 6 hours after power-off, treat that furnace temperature is reduced to 80 DEG C of taking-ups, dewatering borax is made, particle is ground into pulverizer
Diameter is 0.1~0.15mm powder, you can dewatering borax powder is made；
(b) 100kg Nacls are fitted into metal bucket to be put into shaft furnace and are warming up to 320 DEG C, afterheat baking 1.5 hours breaks
Continue to toast 6 hours after electricity, treat that furnace temperature is reduced to 80 DEG C of taking-ups, dehydration industry salt is made, particle is ground into pulverizer
Diameter is 0.1~0.15mm powder, you can dehydration industry salt powder is made；
(c) based on 100 parts of weight, the dewatering borax powder of 88 parts of weight and the dehydration industry salt of 12 parts of weight are weighed respectively
Powder, uniform mixing, you can semi-continuous casting brass is made with lubricator.
(d) brass semicontinuous casting technique, other casting technique parameter constant, the lubrication prepared using step (c) are directed to
Agent is as lubrication of crystallizer agent, 100 brass ingot castings of cast, and observed and recorded the ingot casting quantity of hole occurs, on single ingot casting
Pore quantity and bore hole size.
Embodiment 4
A kind of semi-continuous casting brass with lubricator, based on 100 parts of weight, is made up of following material and parts by weight：Dehydration
95 parts of borax, 5 parts of dehydration industry salt.
A kind of preparation method of above-mentioned semi-continuous casting brass with lubricator is：
(a) 500kg boraxs are fitted into metal bucket to be put into well formula resistance furnace and are warming up to 570 DEG C, afterheat baking 1 hour breaks
Continue to toast 6 hours after electricity, treat that furnace temperature is reduced to 100 DEG C of taking-ups, dewatering borax is made, particle is ground into pulverizer straight
Footpath size is 0.1~0.15mm powder, you can dewatering borax powder is made；
(b) 100kg Nacls are fitted into metal bucket to be put into shaft furnace and are warming up to 340 DEG C, afterheat baking 1 hour, power-off
Continue to toast 2 hours afterwards, treat that furnace temperature is reduced to 100 DEG C of taking-ups, dehydration industry salt is made, particle is ground into pulverizer straight
Footpath size is 0.1~0.15mm powder, you can dehydration industry salt powder is made；
(c) based on 100 parts of weight, the dewatering borax powder of 95 parts of weight and the dehydration industry salt of 5 parts of weight are weighed respectively
Powder, uniform mixing, you can semi-continuous casting brass is made with lubricator.
(d) brass semicontinuous casting technique, other casting technique parameter constant, the lubrication prepared using step (c) are directed to
There is ingot casting quantity, pore quantity and the hole of hole as lubrication of crystallizer agent, 100 brass ingot castings of cast, observed and recorded in agent
Hole size.
Comparative example 1
For brass semicontinuous casting technique, other casting technique parameter constant is moistened using simple borax as crystallizer
There is the ingot casting quantity of hole, pore quantity and hole on single ingot casting in lubrication prescription, 100 brass ingot castings of cast, observed and recorded
Size.
There is the ingot casting quantity of hole, the hole on single ingot casting in 100 brass ingot castings that embodiment 1-4, comparative example 1 are manufactured
Hole quantity and the statistical result of pore size such as table 1 below:
Table 1
| Embodiment 1 | Embodiment 2 | Embodiment 3 | Embodiment 4 | Comparative example 1 | |
| There is the ingot casting quantity (individual) of hole | 4 | 3 | 7 | 5 | 100 |
| Pore quantity (individual) on single ingot casting | 1~3 | 1~3 | 1~3 | 1~3 | 3~25 |
| Bore hole size (mm) | 1~2mm | 1~2mm | 1~2mm | 1~2mm | 1~7mm |
| There is the ingot casting ratio of hole | 4% | 3% | 5% | 7% | 100% |
As a result show：Using addition Nacl borax as lubricant be used for brass semi-continuous casting, there is hole
Ingot casting ratio is substantially reduced, and ingot casting does not find slight crack defect during milling face yet, and polishing is avoided during milling face, reduces and scraps
Rate, eliminates influence of the ingot casting hole to copper strips quality.
The above-mentioned detailed description with lubricator and preparation method thereof carried out to semi-continuous casting brass with reference to embodiment, is to say
It is bright property rather than limited, several embodiments can be included according to limited scope, therefore it is of the invention total not departing from
Changing and modifications under body design, should belong within protection scope of the present invention.
Claims (8)
1. a kind of semi-continuous casting brass is with lubricator, it is characterised in that the semi-continuous casting brass with lubricator presses 100 parts
Weight meter, is made up of following material and parts by weight：
Dewatering borax 75~95；
Dehydration industry salt 5~25；
The dewatering borax is made by borax through 500~600 DEG C of bakings；
The dehydration industry salt is made by Nacl through 300~350 DEG C of bakings；
The lubricant is used in semi-continuous casting brass as lubrication of crystallizer agent.
2. semi-continuous casting brass according to claim 1 is with lubricator, it is characterised in that：The preparation of the dewatering borax
Method is：Borax stopped continuing to toast 2~8 hours after heating, treats that temperature drops through 500~600 DEG C of afterheat bakings 0.5~2 hour
To 30~100 DEG C of taking-ups.
3. semi-continuous casting brass according to claim 1 is with lubricator, it is characterised in that：The system of the dehydration industry salt
Preparation Method is：Nacl stopped continuing to toast 2~8 hours after heating, treats temperature through 300~350 DEG C of afterheat bakings 0.5~2 hour
Degree is down to 30~100 DEG C of taking-ups.
4. semi-continuous casting brass according to claim 1 is with lubricator, it is characterised in that：The dewatering borax and dehydration
Nacl is the powder that particle diameter size is 0.1~0.15mm.
5. the preparation method of semi-continuous casting brass with lubricator according to claim 1, it is characterised in that including following step
Suddenly：
Dewatering borax is made through 500~600 DEG C of bakings in borax, then it is 0.1~0.15mm's to be ground into particle diameter size
Powder, is made dewatering borax powder；
Dehydration industry salt is made through 300~350 DEG C of bakings in Nacl, then be ground into particle diameter size for 0.1~
0.15mm powder, is made dehydration industry salt powder；
Based on 100 parts of weight, the step of by 75~95 parts of weight（a）The step of obtained dewatering borax powder and 5~25 parts of weight
Suddenly（b）Obtained dehydration industry salt powder, uniform mixing, you can semi-continuous casting brass is made with lubricator.
6. preparation method according to claim 5, it is characterised in that step（a）Specifically include:Borax is through 500~600
DEG C baking 0.5~2 hour, stop heating after continue toast 2~8 hours, treat that temperature is down to 30~100 DEG C of taking-up, be made be dehydrated
Borax, then the powder that particle diameter size is 0.1~0.15mm is ground into, dewatering borax powder is made.
7. the preparation method according to claim 5 or 6, it is characterised in that step（b）Specifically include:Nacl is through 300
~350 DEG C are toasted 0.5~2 hour, are stopped continuing to toast 2~8 hours after heating, are treated that temperature is down to 30~100 DEG C of taking-ups, be made
Dehydration industry salt, then the powder that particle diameter size is 0.1~0.15mm is ground into, dehydration industry salt powder is made.
8. application of the lubricant during brass cast made from preparation method according to claim 5.
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| CN201510725557.6A CN105195695B (en) | 2015-10-28 | 2015-10-28 | A kind of semi-continuous casting brass is with lubricator and preparation method thereof |
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|---|---|---|---|
| CN201510725557.6A CN105195695B (en) | 2015-10-28 | 2015-10-28 | A kind of semi-continuous casting brass is with lubricator and preparation method thereof |
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| CN105195695B true CN105195695B (en) | 2017-08-08 |
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| CN104726741A (en) * | 2013-12-19 | 2015-06-24 | 青岛天地碳素有限公司 | Aluminum bronze metal bearing material |
| CN104032155B (en) * | 2014-04-30 | 2016-08-24 | 苏州有色金属研究院有限公司 | Useless ash metal covering agent for smelting and application thereof |
| CN105838917B (en) * | 2015-06-02 | 2017-12-12 | 盐城中咏投资发展有限公司 | A kind of high-wearing feature generator axle sleeve |
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Effective date of registration: 20170112 Address after: 241009 Anhui city of Wuhu Province, Hunan Road economic and Technological Development Zone No. 21 Applicant after: Anhui Xinke Copper Co. Ltd. Address before: 241009 Zhujianglu Road economic and Technological Development Zone, Anhui, No. 3, Applicant before: Anhui Xinke New Material Co., Ltd. |
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