CN103882254B - Have the xantal continuous casting tubing and production method thereof of high strength, high ductility concurrently - Google Patents
Have the xantal continuous casting tubing and production method thereof of high strength, high ductility concurrently Download PDFInfo
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- CN103882254B CN103882254B CN201410149313.3A CN201410149313A CN103882254B CN 103882254 B CN103882254 B CN 103882254B CN 201410149313 A CN201410149313 A CN 201410149313A CN 103882254 B CN103882254 B CN 103882254B
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Abstract
The invention discloses a kind of xantal continuous casting tubing and production method thereof having high strength, high ductility concurrently, product is made up of the component of following weight percent: the aluminium of 10 ~ 11.5%, the iron of 3 ~ 5% ,≤1.5% nickel, the manganese of≤0.5%, and surplus is copper.Thick horizontal connection casting process.Product of the present invention has the excellent and feature that tooling cost is low of over-all properties.Adopt the continous way mode of production, can the continuous casting tubing of production random length, be applicable to modern numerical control device high-speed job to the Application Areas that tubing is directly spent and length has higher requirements.
Description
Technical field
The present invention relates to a kind of xantal continuous casting tubing and production method thereof.
Background technology
Xantal is owing to having very high intensity, hardness, good wear resisting property, the dense structure of alloy, is applicable to manufacture heavy-duty machinery and higher withstand voltage of desired strength, wear part, as axle sleeve, bearing, flange, lining, valve body, the pump housing, guide thimble etc.
The continuous casting difficulty of bronze tube is more much bigger than brass, especially the horizontal continuous-casting tubing of large gauge, and it adds technique and is more difficult to grasp.This manufacturing process and technology are abroad monopolized all the time, and domestic only have for several little Ji Jia enterprise that traditionally sand mold or centrifugally cast production technique are engaged in production.
In recent years, in order to meet the different requirements of various industry to wear-resisting xantal, in succession develop various new xantal, mostly the mode of its strengthening is to adopt increases aluminium content, or adds multi-element alloyed element.
According to X alloy phasor, along with the increase of aluminium content, the β phase in the matrix of alloy increases, and due to the characteristic that β phase is firmly crisp, the plasticity of material is poor.And the material with higher aluminum content can form firmly crisp γ phase at low temperatures, worsen the over-all properties of alloy.
German Patent CN1400326 discloses one and is applied to automobile synchronizer tooth ring field, there is the forged aluminium bronze of high-wearing feature and great friction coefficient, this alloy is the xantal adding iron nisiloy, shape in forging mode, after the thermal treatment process such as quench aging, just must can reach corresponding mechanical property requirements; Patent CN1936049 discloses a kind of high-strength wear-resistance aluminum alloy be applied on elevator, and adopt sand mold casting mode to produce, the intensity of this foundry goods is higher, but aluminium content is in the poor β region of plasticity, and the plasticity value of material is lower.Patent CN1629350A discloses a kind of moulding stock xantal, and because the alloying element total amount of adding is comparatively large, its plasticity value is lower; Patent CN1061441A provides a kind of multicomponent alloy element ferromanganese NiTi McGill metals foundry goods, adopt sand mold or permanent mold casting equally, though intensity and plasticity value higher, there is because alloying level is high founding complicated operation and the very high deficiency of cost of alloy.
Summary of the invention
The object of the present invention is to provide a kind of xantal continuous casting tubing and production method thereof having high strength, high ductility concurrently.
Technical solution of the present invention is:
Have an xantal continuous casting tubing for high strength, high ductility concurrently, it is characterized in that: be made up of the component of following weight percent: the aluminium of 10 ~ 11.5%, the iron of 3 ~ 5% ,≤1.5% nickel, the manganese of≤0.5%, surplus is copper.
Aluminium is 10 ~ 10.8%, and iron is 4 ~ 5%.
Have concurrently high strength, high ductility xantal continuous casting tubing a production method, it is characterized in that: comprise the following steps: that according to aluminium 10 ~ 11.5%, iron 3 ~ 5%, surplus be the proportion scheme of copper; The copper of 2/3 of total copper consumption, the aluminium of 1/3 of total aluminium consumption, iron are in stove, cover by 0.1% sodium aluminum fluoride of charging capacity, after copper fusing, furnace temperature is promoted to 1300 DEG C, the aluminium of the copper of the copper consumption 1/3 that whole fusing adds up afterwards and the aluminium consumption 2/3 of totalling, again add sodium aluminum fluoride scarfing cinder after fusing, be warming up to 1100 ~ 1200 DEG C of casts.
Described cast cast temperature 1100 ~ 1200 DEG C, drawing length 8 ~ 15mm, cast frequency 6 ~ 15 beats/min, 3 ~ 8 seconds unemployed time.The mode that cooling adopts once cooling and cooling twice to combine, primary water pressure 0.03 ~ 0.06MPa, secondary cooling water adopts water-cooled tube to supply water, and cooling intensity is 40% of a cooling intensity.
Adopt graphite mo(u)ld inner chamber during cast, graphite mo(u)ld inner chamber is positive taper, tapering 1:75, and core rod is back taper, and tapering is 1 ~ 2 °.
Aluminium was added every one hour by 0.5% of total charged material weight in cast process.
The present invention is according to following principle determination tubing composition and complete processing:
(1) a kind of aluminum bronze tube of high strength high ductility, by limiting the content of Cu-Al Aluminum in Alloy, and the alloying element such as iron, nickel, manganese that comprehensive interpolation is appropriate, finally carry heavy alloyed comprehensive mechanical property, wear resisting property, ensure that it also has good plasticity simultaneously.
Aluminium is the principal element determining McGill metals intensity, and according to X alloy phasor, the xantal of aluminum content more than 10%, along with the increase of aluminium content, the β phase in alloy increases, and α phase reduces, and is two-phase (alpha+beta) alloy.Along with increasing of β phase, the intensity of alloy improves, and plasticity value declines, and now, the performance of alloy depends primarily on the relative quantity of α and β in alloy.By increasing the aluminium content in alloy, then increasing the relative quantity of β phase in alloy, is a kind of approach of very effective raising alloy strength, but excessive the increasing of β phase, enter full β phase region, the plasticity value that can be directed at material declines rapidly.Therefore seek a kind of appropriate aluminium content, while obtaining high strength, possessing relatively high plasticity value is research topic of the present invention.
By a large amount of production practice, when contriver determines that aluminium content is between 10 ~ 10.8%, the intensity level of material is up to 700 ~ 900MPa, and can keep the ductility value of more than 12%.
The research of having announced shows, the content of the β phase in alloy can be improved by rational thermal treatment, to reach the object of reinforced alloys, but heat treatment step is highly energy-consuming technique, and the present invention is intended to obtain enough intensity by determinant and ensure the plasticity of material.
Suitable ferro element is added in X alloy, the solubleness of Fe in Cu-Al sosoloid can reach 2% ~ 3%, and during containing 4%Fe, in Copper component, (i.e. FeA13) particulate is separated out from melt, make alloy grain refinement as heterogeneous necleus, hardness and intensity are improved greatly.But when iron level is greater than 5, then can affect the solidity to corrosion of alloy.Containing the Cu-A1 alloy of about 4%Fe, little on Al solubleness impact in the alloy, and can eutectoid transformation be postponed, this had both improved the intensity of xantal, simultaneously very beneficial to the toughness that maintenance is higher.
Through theoretical investigation and production practice, determine that the iron level that the present invention casts tubing continuously controls 4 ~ 5%.
In a large amount of production practice; we find; aluminium element is in fusion-casting process; there is certain volatilization melting loss amount; in addition the feature of the continuous large-scale production of horizontal continuous-casting; namely castingprocesses will complete within longer time, and how ensureing the aluminium content (10 ~ 10.8%) in the scope of a relative narrower in X alloy, is a problem that will capture.
The key of alloy smelting process is as ensured the even, stable of melt chemistry composition, have core line frequency induction furnace to have Melt Stirring function is strong, power factor is high feature, therefore continuous casting pipe of the present invention adopts frequency cored induction furnace melting.
High-melting point alloy element and low melting point alloy element has been had concurrently in alloying element, differ more with the fusing point of alloy substrate, therefore in fusion process height melting point alloying element add problem, how ensureing the melting loss fully melting and control low melting point element fast of high-melting point alloy element, is the gordian technique of high ampco melting.
Facts have proved, adopt the temperature of fusion of specific order of addition(of ingredients) and various different-alloy element, is the key of dealing with problems.High-melting point alloy element iron must add before adding aluminium, and heat up fusing, otherwise be difficult to add.And aluminium is low due to fusing point, amount of heat during dissolving, can be released, add at comparatively high temps, a large amount of melting loss of alloy can be caused, therefore add fashionable, cooling material must be added in case melt overheat and cause a large amount of melting losses of aluminium simultaneously.
Aluminium can form protective membrane at bath surface, shields to melt, releases amount of heat during dissolving, same appropriate to the occasionly adds a small amount of aluminium what add high-melting point alloy element fusing.Solvent is people's stove together with alloy material, has both served the effect of covering protection, also serves the effect of refining, effectively prevent air-breathing oxidation.
Virgin material melting appropriate to the occasion disposable add copper, iron and a small amount of aluminium and add solvent the aluminium alloy of fusing is covered and refining.After furnace temperature rises, copper first melts, and dissolved iron makes its alloying, thus reduces fusing point, accelerates the fusing of iron.When furnace temperature continue to be elevated to 1300 DEG C and suitably after insulation to iron fusing, then add surplus copper cooling, after add aluminium fusing again, such order of addition(of ingredients) reaches fast melting, reduces the effect of oxidation melting loss.The present invention formulates following melting order of addition(of ingredients) according to high ampco melting property, and determines the scaling loss compensation rate of alloying element accordingly:
Order of addition(of ingredients): sodium aluminum fluoride+2/3 copper+1/3 aluminium+iron → fusing → intensification (1300 DEG C) → melt → add 1/3 bronze medal cooling+2/3 aluminium → melt → add sodium aluminum fluoride → stirring to drag for slag → intensification → sampling → thermometric → cast.
Aluminum bronze tube provided by the invention, its aluminium content is 10 ~ 10.8%, according to X alloy phasor, alloy at high temperature (850 DEG C) complete more than time be β sosoloid, enter (alpha+beta) two-phase region with temperature fall.That is, in process of cooling subsequently, secondaryαphase can be separated out from β phase region.
Speed of cooling not only affects original β phase crystal grain, and the α grain form of separating out when entering (alpha+beta) two-phase region to cooling also has impact, speed of cooling also can affect β phase decomposition, and speed of cooling can suppress the eutectoid decomposition of β phase faster, reduces the impact of the firmly crisp relative alloy plasticity of γ.The β phase at high temperature produced cools under higher cooling intensity, and alloy can be made to obtain the microstructure being dispersed with fine and closely woven secondaryαphase at the tissue being matrix with β phase, and the alloy with this kind of tissue has higher intensity and ductility concurrently.
Compared with traditional sand mold casting and rotary casting, horizontal continuous-casting adopts water cooling copper sleeve to add graphite crystallizer moulding, the type of cooling that primary water combines with secondary cooling water can be realized cast, cooling intensity is higher, cooling twice water ring can Kia quenching effect, the comprehensive mechanical property improving tubing is had and acts on very significantly, the alloy fragility produced due to Slow cooling that sand mold casting xantal is common can not be produced.
Horizontal casting tubing cast cooling water pressure of the present invention controls 0.03 ~ 0.06MPa, and secondary cooling water adopts special water-cooled tube to supply water, and cooling intensity is 40% of a cooling intensity.The final microstructure of cast tube is that the tissue being matrix with β phase is dispersed with fine and closely woven secondaryαphase.
In horizontal continuous-casting, the design and manufacture level of crystallizer directly affects continuous casting pipe quality.The process of setting of continuous casting pipe carries out in a crystallizer, and crystallizer and graphite core structure design and cooling system are the core technologies of continuous casting.
The present invention wherein graphite mo(u)ld inner chamber is positive taper, tapering 1:75, and core rod is back taper, tapering 1 ~ 2 °.
Product of the present invention has the excellent and feature that tooling cost is low of over-all properties.Adopt the continous way mode of production, can the continuous casting tubing of production random length, be applicable to modern numerical control device high-speed job to the Application Areas that tubing is directly spent and length has higher requirements.Product due to the production of the traditional diamond-making technique such as rotational casting and sand mold casting is directly spent and all cannot be met the demands with length, and China's numerical control device can not play its effect to a great extent because starting material level of processing is not high.
Horizontal continuous casting technology is acknowledged as the casting technology of the high, precision and frontier improving slab quality.Adopt rational processing parameter, by the control to continuous casting tube surfaces quality and solidified structure, surfaces externally and internally polishing can be prepared, the horizontal casting tubing of dense internal organization.
Traditional smelting copper alloy and casting, hot-work, the cold working syllogic mode of production are broken, smelting non-ferrous metal, processing, thermal treatment modern technique are all being sought one after another by each state, make non-ferrous metal alloy produce reach energy-conservation, material-saving, shortened process, reduction manufacturing cost.
Horizontal continuous-casting mode is adopted to produce xantal pipe, due to the production technology of its short route, the nearly end form of low cost, make continuous casting pipe production process energy-efficient, meet the development strategy that national energy-saving reduces discharging, more because its lower production cost has stronger market competition advantage.The Large Diameter Pipeline bronze continuous casting pipe produced of adopting new technology will fill the domestic gaps.
Below in conjunction with embodiment, the invention will be further described.
Embodiment
According to aluminium 10-11.5%(weight), iron 4-5%(weight), surplus is the scheme that feeds intake of copper, adopt and have core line frequency induction furnace to prepare burden by body of heater capacity.First add 2/3 bronze medal+1/3 aluminium+iron in stove, cover by 0.1% sodium aluminum fluoride of charging capacity, after copper fusing, furnace temperature is promoted to 1300 DEG C, add 2/3 aluminium after all adding 1/3 bronze medal cooling after fusing, again add sodium aluminum fluoride scarfing cinder after fusing, be warming up to 1100 ~ 1200 DEG C of casts.Aluminium was added every one hour by 0.5% of the gross weight that feeds intake, to make up the loss (certain this loss also can be ignored, and does not add aluminium) of aluminium in cast process in cast process.Cast temperature 1100 ~ 1200 DEG C, drawing length 8 ~ 15mm, cast frequency 6 ~ 15 beats/min, 3 ~ 8 seconds unemployed time.The mode that cooling adopts once cooling and cooling twice to combine, primary water pressure 0.03 ~ 0.06MPa, secondary cooling water adopts special water-cooled tube to supply water, and cooling intensity is 40% of a cooling intensity.Adopt graphite mo(u)ld inner chamber during cast, graphite mo(u)ld inner chamber is positive taper, tapering 1:75, and core rod is back taper, and tapering is 1 ~ 2 °.Because impurity exists, in product, contain the manganese of≤1.5% nickel and≤0.5%.
By above-described embodiment, performance and composition test the results are shown in specification sheets subordinate list.
Specification sheets subordinate list
This shows excellent technique effect of the present invention.
Claims (1)
1. have concurrently high strength, high ductility xantal continuous casting tubing a production method, it is characterized in that: comprise the following steps: according to weight percent be: aluminium 10 ~ 11.5%, iron 3 ~ 5%, surplus are the proportion scheme of copper; The copper of 2/3 of total copper consumption, the aluminium of 1/3 of total aluminium consumption, iron are in stove, cover by 0.1% sodium aluminum fluoride of charging capacity, after copper fusing, furnace temperature is promoted to 1300 DEG C, the aluminium of the copper of the copper consumption 1/3 that whole fusing adds up afterwards and the aluminium consumption 2/3 of totalling, again add sodium aluminum fluoride scarfing cinder after fusing, be warming up to 1100 ~ 1200 DEG C of casts; Described cast temperature 1100 ~ 1200 DEG C, drawing length 8 ~ 15mm, cast frequency 6 ~ 15 beats/min, 3 ~ 8 seconds unemployed time; The mode that cooling adopts once cooling and cooling twice to combine, primary water pressure 0.03 ~ 0.06MPa, secondary cooling water adopts water-cooled tube to supply water, and cooling intensity is 40% of a cooling intensity; Adopt graphite mo(u)ld inner chamber during cast, graphite mo(u)ld inner chamber is positive taper, tapering 1:75, and core rod is back taper, and tapering is 1 ~ 2 °; Aluminium was added every one hour by 0.5% of total charged material weight in cast process.
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| CN201410149313.3A CN103882254B (en) | 2014-04-14 | 2014-04-14 | Have the xantal continuous casting tubing and production method thereof of high strength, high ductility concurrently |
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| CN201410149313.3A CN103882254B (en) | 2014-04-14 | 2014-04-14 | Have the xantal continuous casting tubing and production method thereof of high strength, high ductility concurrently |
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Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104928524A (en) * | 2015-03-24 | 2015-09-23 | 河南机电高等专科学校 | Cu-Al-Ti-Fe-Ni system copper alloy |
| CN106015078A (en) * | 2015-04-24 | 2016-10-12 | 张金荣 | Automotive water pump |
| CN105950926A (en) * | 2015-04-24 | 2016-09-21 | 陈思 | Oil transfer pump for oil refinery |
| CN105756992A (en) * | 2015-04-24 | 2016-07-13 | 张金荣 | Anti-corrosion, anti-abrasion, high-temperature-resistant, anti-scaling, low-cost and high-cleanliness water pump for automobile |
| CN104791256A (en) * | 2015-04-24 | 2015-07-22 | 陈思 | Oil conveying pump |
| CN104847685A (en) * | 2015-05-03 | 2015-08-19 | 陈思 | Corrosion--resisting sea water pump |
| CN106086523A (en) * | 2015-05-03 | 2016-11-09 | 张金荣 | A kind of vane type fire pump of corrosion-resistant high-temperature antiscale low cost |
| CN108179306B (en) * | 2018-02-11 | 2020-02-11 | 陕西斯瑞新材料股份有限公司 | Copper-based alloy for robot welding arm |
| CN110241320B (en) * | 2019-07-26 | 2021-04-27 | 吉安德晋昌光电科技有限公司 | High-strength copper alloy wire and preparation method thereof |
| CN115141953A (en) * | 2021-03-31 | 2022-10-04 | 宁波永享铜管道有限公司 | Preparation method of aluminum bronze alloy |
| CN114318052A (en) * | 2021-12-16 | 2022-04-12 | 镇江市镇特合金材料有限公司 | High-wear-resistance copper alloy for roller and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6039196A (en) * | 1983-08-10 | 1985-02-28 | Mikado Sangyo Kk | Conductor roll and its shell for continuous electroplating |
| CN1330782C (en) * | 2005-12-22 | 2007-08-08 | 上海交通大学 | Method for preparing micro-grain aluminium bronze alloy |
| CN101643867B (en) * | 2009-08-28 | 2011-11-23 | 镇江汇通金属成型有限公司 | High performance copper casting alloy and preparation method thereof |
| KR20120066371A (en) * | 2010-12-14 | 2012-06-22 | 한욱희 | Copper alloy composition for bending die of automobile wiper |
-
2014
- 2014-04-14 CN CN201410149313.3A patent/CN103882254B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6039196A (en) * | 1983-08-10 | 1985-02-28 | Mikado Sangyo Kk | Conductor roll and its shell for continuous electroplating |
| CN1330782C (en) * | 2005-12-22 | 2007-08-08 | 上海交通大学 | Method for preparing micro-grain aluminium bronze alloy |
| CN101643867B (en) * | 2009-08-28 | 2011-11-23 | 镇江汇通金属成型有限公司 | High performance copper casting alloy and preparation method thereof |
| KR20120066371A (en) * | 2010-12-14 | 2012-06-22 | 한욱희 | Copper alloy composition for bending die of automobile wiper |
Non-Patent Citations (1)
| Title |
|---|
| 陈琦 等.表3.4-45.《铸造合金配料速查手册》.机械工业出版社,2012, * |
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