CN104593637B - Novel copper-based alloy pipe for high speed railway and preparation method of alloy pipe - Google Patents
Novel copper-based alloy pipe for high speed railway and preparation method of alloy pipe Download PDFInfo
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
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- C22C9/02—Alloys based on copper with tin as the next major constituent
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Abstract
The invention provides a novel copper-based alloy pipe for a high speed railway and a preparation method of the alloy pipe. The novel copper-based alloy pipe for the high speed railway comprises the following components based on the total weight of the alloy pipe: 0.1-0.8 percent of aluminum, 0.05-0.5 percent of phosphorus, 0.5-1.5 percent of antimony, 0.2-0.5 percent of magnesium, 1-3 percent of silicon, 10-13 percent of tin, 4-6 percent of zinc and the balance of copper. Due to the addition of magnesium element, addition of lead is avoided on the basis that the machinability and wear resistance and antifriction property of the original lead-containing tin bronze are maintained or are not obviously reduced. According to the added magnesium element, single phases in diffuse distribution are formed in the copper alloy and achieve the chip breaking effects during cutting, so that the machinability of the copper alloy is improved.
Description
Technical field
The present invention relates to alloy pipe field is and in particular to a kind of novel copper-base alloy pipe used for high-speed railway and its preparation side
Method.
Background technology
Cutting ability and properties of antifriction and wear resistance that why copper alloy containing lead has had, mainly due to lead in copper alloy
Existed with individual event, play good chip breaking effect in cutting；Under fretting wear environment, due to lead shear strength very
Low, the lead on copper alloy parts surface makes the coefficient of friction of copper alloy containing lead than relatively low.So, lead element in brass alloys relatively
Commonly use.
However, because lead is heavy metal, toxicity is larger, with the increasingly raising of environmental consciousness, the bronze conjunction containing lead element
Gold can not meet the requirement of domestic and international high-end market.
Content of the invention
It is an object of the invention to provide a kind of novel copper-base alloy pipe used for high-speed railway and preparation method thereof, keeping or
On the basis of insignificantly reducing former machinability containing Redford alloy and wear resistant friction reducing, prevent the addition of lead.
In order to realize foregoing invention purpose, the technical solution used in the present invention is as follows:
A kind of novel copper-base alloy pipe used for high-speed railway, composed of the following components: to account for compo pipe gross weight 0.1-0.8%
Aluminium, accounts for the phosphorus of compo pipe gross weight 0.05-0.5%, accounts for the antimony of compo pipe gross weight 0.5-1.5%, accounts for compo pipe gross weight
The magnesium of 0.2-0.5%, accounts for the silicon of compo pipe gross weight 1-3%, accounts for the tin of compo pipe gross weight 10-13%, accounts for compo pipe gross weight
The zinc of amount 4-6%, balance of copper.
Preferably, composed of the following components: to account for the aluminium of compo pipe gross weight 0.1%, account for compo pipe gross weight 0.05%
Phosphorus, accounts for the antimony of compo pipe gross weight 0.5%, accounts for the magnesium of compo pipe gross weight 0.2%, accounts for the silicon of compo pipe gross weight 1%, accounts for conjunction
The tin of golden pipe gross weight 10%, accounts for the zinc of compo pipe gross weight 4%, balance of copper.
Preferably, composed of the following components: to account for the aluminium of compo pipe gross weight 0.8%, account for compo pipe gross weight 0.5%
Phosphorus, accounts for the antimony of compo pipe gross weight 1.5%, accounts for the magnesium of compo pipe gross weight 0.5%, accounts for the silicon of compo pipe gross weight 3%, accounts for conjunction
The tin of golden pipe gross weight 13%, accounts for the zinc of compo pipe gross weight 6%, balance of copper.
Preferably, composed of the following components: to account for the aluminium of compo pipe gross weight 0.4%, account for compo pipe gross weight 0.25%
Phosphorus, accounts for the antimony of compo pipe gross weight 1%, accounts for the magnesium of compo pipe gross weight 0.3%, accounts for the silicon of compo pipe gross weight 2%, accounts for alloy
The tin of pipe gross weight 12%, accounts for the zinc of compo pipe gross weight 5%, balance of copper.
Preferably, composed of the following components: to account for the aluminium of compo pipe gross weight 0.2%, account for compo pipe gross weight 0.05%
Phosphorus, accounts for the antimony of compo pipe gross weight 0.5%, accounts for the magnesium of compo pipe gross weight 0.5%, accounts for the silicon of compo pipe gross weight 3%, accounts for conjunction
The tin of golden pipe gross weight 13%, accounts for the zinc of compo pipe gross weight 6%, balance of copper.
Preferably, composed of the following components: to account for the aluminium of compo pipe gross weight 0.3%, account for compo pipe gross weight 0.5%
Phosphorus, accounts for the antimony of compo pipe gross weight 1.5%, accounts for the magnesium of compo pipe gross weight 0.2%, accounts for the silicon of compo pipe gross weight 1%, accounts for conjunction
The tin of golden pipe gross weight 10%, accounts for the zinc of compo pipe gross weight 4%, balance of copper.
Further, described copper is cathode copper.
A kind of preparation method of novel copper-base alloy pipe used for high-speed railway, comprises the following steps:
1) according to proportioning, Cu-Sn-Zn, aluminium, phosphorus, antimony, silicon are placed in main frequency furnace and carry out vacuum melting, be heated to
After 1150-1200 degree Celsius is completely melt, it is incubated under vacuum conditions to 1100 degrees Celsius, temperature retention time is 30-40 minute；
2) magnesium metal is proportionally added to the Cu-Sn-Zn after insulation, aluminium, phosphorus, antimony, in silicon alloy solution, and immediately
After the alloy liquid being completely melt being sufficiently stirred for special graphite instrument, in the above cover high-purity flaky graphite powder with
Prevent its oxidation, thickness is 15-20cm；
3) it is incubated further, temperature retention time is 30-40 minute, carries out into go-on-go with spectrometer to the sample taking out in stove
Test, to determine its alloying component within prescribed limit；
4), again after insulation 20-30 minute, again it is warming up to 1200 degrees Celsius, and opens the vibrating device of main frequency furnace,
It is cast as the blank compo pipe of given size and length using vertical continuous casting method；
5) with light ingot machine, Surface Machining is carried out to blank compo pipe, using extruder extruding, alloy pig heating-up temperature is
180-200 degree Celsius, extrusion temperature is 500 degrees Celsius, extrusion speed v=4mm/s, obtains given size after multiple extruding
Compo pipe semi-finished product；
6) anneal, with annealing furnace, the compo pipe after extruding made annealing treatment, annealing temperature is 100-200 degree Celsius,
Annealing time is 30-40 minute；
7) detect a flaw, will extrude and the compo pipe completing out of annealing is detected a flaw, percentage of detection is 100%；
8) it is surface-treated, the compo pipe that completes of annealing is carried out turnning and milling so as to inside and outside smooth, obtain given size and length
Finished product, then pack and put in storage.
Further, step 3) described in spectrometer adopt Spike direct-reading spectrometer.
Further, step 3) in composition amount of testing be 3-6 time.
The invention has the beneficial effects as follows: the invention provides a kind of novel copper-base alloy pipe used for high-speed railway and its preparation side
Method, by adding magnesium elements on the basis of keeping or insignificantly reducing former machinability containing Redford alloy and wear resistant friction reducing,
Prevent the addition of lead.Principle is to form the independent phase of Dispersed precipitate in copper alloy using the magnesium elements adding, these
Chip breaking effect is played, thus improving the machinability of copper alloy during cutting.
Specific embodiment
The invention will be further described with reference to embodiments, but not limits the range of application of the present invention.
Embodiment 1
A kind of novel copper-base alloy pipe used for high-speed railway, composed of the following components: account for the aluminium of compo pipe gross weight 0.1%,
Account for the phosphorus of compo pipe gross weight 0.05%, account for the antimony of compo pipe gross weight 0.5%, account for the magnesium of compo pipe gross weight 0.2%, account for conjunction
The silicon of golden pipe gross weight 1%, accounts for the tin of compo pipe gross weight 10%, accounts for the zinc of compo pipe gross weight 4%, balance of copper.
According to proportioning, electrolysis Cu-Sn-Zn, aluminium, phosphorus, antimony, silicon are placed in main frequency furnace and carry out vacuum melting, be heated to
After 1150-1200 degree Celsius is completely melt, it is incubated under vacuum conditions to 1100 degrees Celsius, temperature retention time is 30-40 minute；
Magnesium metal is proportionally added to the Cu-Sn-Zn after insulation, aluminium, phosphorus, antimony, in silicon alloy solution, and uses special graphite immediately
After the alloy liquid being completely melt is sufficiently stirred for by instrument, cover high-purity flaky graphite powder in the above to prevent its oxygen
Change, thickness is 15-20cm；It is incubated further, temperature retention time is 30-40 minute, is taken in stove with Spike direct-reading spectrometer
The sample going out carries out 3-6 composition inspection, to determine its alloying component within prescribed limit；Again after insulation 20-30 minute,
Again it is warming up to 1200 degrees Celsius, and opens the vibrating device of main frequency furnace, being cast as external diameter using vertical continuous casting method is
245mm, internal diameter is 195mm, and length is the blank compo pipe of 550mm；With light ingot machine, Surface Machining is carried out to blank compo pipe, plus
Work is 240mm for any surface finish external diameter, and internal diameter is 200mm, and length is 540mm, is extruded using 2500 tons of double-acting extruding machines, alloy
Ingot heating-up temperature is 180-200 degree Celsius, and extrusion temperature is 500 degrees Celsius, extrusion speed v=4mm/s, after multiple extruding
Compo pipe is 230mm for external diameter, and tolerance is +/- 1mm, internal diameter 210mm, and tolerance is +/- 1mm；Annealing, with box-annealing furnace to crowded
Compo pipe after pressure is made annealing treatment, and annealing temperature is 100-200 degree Celsius, and annealing time is 30-40 minute；Flaw detection, will
The compo pipe completing out that extrudes and anneal is detected a flaw, and percentage of detection is 100%；Surface treatment, the compo pipe that annealing is completed
Carry out turnning and milling so as to inside and outside smooth, external diameter is 228mm, tolerance is +/- 0.5mm, internal diameter is 212mm, tolerance is +/- 0.5mm,
Length is 500mm, and tolerance is +/- 1mm, then packs and puts in storage.
Compared with existing leaded tin bronze alloys, the novel copper-base alloy pipe used for high-speed railway that the present embodiment provides,
By adding magnesium elements on the basis of keeping or insignificantly reducing former machinability containing Redford alloy and wear resistant friction reducing, prevent
The addition of lead.
Embodiment 2
A kind of novel copper-base alloy pipe used for high-speed railway, composed of the following components: account for the aluminium of compo pipe gross weight 0.8%,
Account for the phosphorus of compo pipe gross weight 0.5%, account for the antimony of compo pipe gross weight 1.5%, account for the magnesium of compo pipe gross weight 0.5%, account for conjunction
The silicon of golden pipe gross weight 3%, accounts for the tin of compo pipe gross weight 13%, accounts for the zinc of compo pipe gross weight 6%, balance of copper.
According to proportioning, electrolysis Cu-Sn-Zn, aluminium, phosphorus, antimony, silicon are placed in main frequency furnace and carry out vacuum melting, be heated to
After 1150-1200 degree Celsius is completely melt, it is incubated under vacuum conditions to 1100 degrees Celsius, temperature retention time is 30-40 minute；
Magnesium metal is proportionally added to the Cu-Sn-Zn after insulation, aluminium, phosphorus, antimony, in silicon alloy solution, and uses special graphite immediately
After the alloy liquid being completely melt is sufficiently stirred for by instrument, cover high-purity flaky graphite powder in the above to prevent its oxygen
Change, thickness is 15-20cm；It is incubated further, temperature retention time is 30-40 minute, is taken in stove with Spike direct-reading spectrometer
The sample going out carries out 3-6 composition inspection, to determine its alloying component within prescribed limit；Again after insulation 20-30 minute,
Again it is warming up to 1200 degrees Celsius, and opens the vibrating device of main frequency furnace, being cast as external diameter using vertical continuous casting method is
245mm, internal diameter is 195mm, and length is the blank compo pipe of 550mm；With light ingot machine, Surface Machining is carried out to blank compo pipe, plus
Work is 240mm for any surface finish external diameter, and internal diameter is 200mm, and length is 540mm, is extruded using 2500 tons of double-acting extruding machines, alloy
Ingot heating-up temperature is 180-200 degree Celsius, and extrusion temperature is 500 degrees Celsius, extrusion speed v=4mm/s, after multiple extruding
Compo pipe is 230mm for external diameter, and tolerance is +/- 1mm, internal diameter 210mm, and tolerance is +/- 1mm；Annealing, with box-annealing furnace to crowded
Compo pipe after pressure is made annealing treatment, and annealing temperature is 100-200 degree Celsius, and annealing time is 30-40 minute；Flaw detection, will
The compo pipe completing out that extrudes and anneal is detected a flaw, and percentage of detection is 100%；Surface treatment, the compo pipe that annealing is completed
Carry out turnning and milling so as to inside and outside smooth, external diameter is 228mm, tolerance is +/- 0.5mm, internal diameter is 212mm, tolerance is +/- 0.5mm,
Length is 500mm, and tolerance is +/- 1mm, then packs and puts in storage.
Compared with existing leaded tin bronze alloys, the novel copper-base alloy pipe used for high-speed railway that the present embodiment provides,
By adding magnesium elements on the basis of keeping or insignificantly reducing former machinability containing Redford alloy and wear resistant friction reducing, prevent
The addition of lead.
Embodiment 3
A kind of novel copper-base alloy pipe used for high-speed railway, composed of the following components: account for the aluminium of compo pipe gross weight 0.4%,
Account for the phosphorus of compo pipe gross weight 0.25%, account for the antimony of compo pipe gross weight 1%, account for the magnesium of compo pipe gross weight 0.3%, account for alloy
The silicon of pipe gross weight 2%, accounts for the tin of compo pipe gross weight 12%, accounts for the zinc of compo pipe gross weight 5%, balance of copper.
According to proportioning, electrolysis Cu-Sn-Zn, aluminium, phosphorus, antimony, silicon are placed in main frequency furnace and carry out vacuum melting, be heated to
After 1150-1200 degree Celsius is completely melt, it is incubated under vacuum conditions to 1100 degrees Celsius, temperature retention time is 30-40 minute；
Magnesium metal is proportionally added to the Cu-Sn-Zn after insulation, aluminium, phosphorus, antimony, in silicon alloy solution, and uses special graphite immediately
After the alloy liquid being completely melt is sufficiently stirred for by instrument, cover high-purity flaky graphite powder in the above to prevent its oxygen
Change, thickness is 15-20cm；It is incubated further, temperature retention time is 30-40 minute, is taken in stove with Spike direct-reading spectrometer
The sample going out carries out 3-6 composition inspection, to determine its alloying component within prescribed limit；Again after insulation 20-30 minute,
Again it is warming up to 1200 degrees Celsius, and opens the vibrating device of main frequency furnace, being cast as external diameter using vertical continuous casting method is
245mm, internal diameter is 195mm, and length is the blank compo pipe of 550mm；With light ingot machine, Surface Machining is carried out to blank compo pipe, plus
Work is 240mm for any surface finish external diameter, and internal diameter is 200mm, and length is 540mm, is extruded using 2500 tons of double-acting extruding machines, alloy
Ingot heating-up temperature is 180-200 degree Celsius, and extrusion temperature is 500 degrees Celsius, extrusion speed v=4mm/s, after multiple extruding
Compo pipe is 230mm for external diameter, and tolerance is +/- 1mm, internal diameter 210mm, and tolerance is +/- 1mm；Annealing, with box-annealing furnace to crowded
Compo pipe after pressure is made annealing treatment, and annealing temperature is 100-200 degree Celsius, and annealing time is 30-40 minute；Flaw detection, will
The compo pipe completing out that extrudes and anneal is detected a flaw, and percentage of detection is 100%；Surface treatment, the compo pipe that annealing is completed
Carry out turnning and milling so as to inside and outside smooth, external diameter is 228mm, tolerance is +/- 0.5mm, internal diameter is 212mm, tolerance is +/- 0.5mm,
Length is 500mm, and tolerance is +/- 1mm, then packs and puts in storage.
Compared with existing leaded tin bronze alloys, the novel copper-base alloy pipe used for high-speed railway that the present embodiment provides,
By adding magnesium elements on the basis of keeping or insignificantly reducing former machinability containing Redford alloy and wear resistant friction reducing, prevent
The addition of lead.
Embodiment 4
A kind of novel copper-base alloy pipe used for high-speed railway, composed of the following components: account for the aluminium of compo pipe gross weight 0.2%,
Account for the phosphorus of compo pipe gross weight 0.05%, account for the antimony of compo pipe gross weight 0.5%, account for the magnesium of compo pipe gross weight 0.5%, account for conjunction
The silicon of golden pipe gross weight 3%, accounts for the tin of compo pipe gross weight 13%, accounts for the zinc of compo pipe gross weight 6%, balance of copper.
According to proportioning, electrolysis Cu-Sn-Zn, aluminium, phosphorus, antimony, silicon are placed in main frequency furnace and carry out vacuum melting, be heated to
After 1150-1200 degree Celsius is completely melt, it is incubated under vacuum conditions to 1100 degrees Celsius, temperature retention time is 30-40 minute；
Magnesium metal is proportionally added to the Cu-Sn-Zn after insulation, aluminium, phosphorus, antimony, in silicon alloy solution, and uses special graphite immediately
After the alloy liquid being completely melt is sufficiently stirred for by instrument, cover high-purity flaky graphite powder in the above to prevent its oxygen
Change, thickness is 15-20cm；It is incubated further, temperature retention time is 30-40 minute, is taken in stove with Spike direct-reading spectrometer
The sample going out carries out 3-6 composition inspection, to determine its alloying component within prescribed limit；Again after insulation 20-30 minute,
Again it is warming up to 1200 degrees Celsius, and opens the vibrating device of main frequency furnace, being cast as external diameter using vertical continuous casting method is
245mm, internal diameter is 195mm, and length is the blank compo pipe of 550mm；With light ingot machine, Surface Machining is carried out to blank compo pipe, plus
Work is 240mm for any surface finish external diameter, and internal diameter is 200mm, and length is 540mm, is extruded using 2500 tons of double-acting extruding machines, alloy
Ingot heating-up temperature is 180-200 degree Celsius, and extrusion temperature is 500 degrees Celsius, extrusion speed v=4mm/s, after multiple extruding
Compo pipe is 230mm for external diameter, and tolerance is +/- 1mm, internal diameter 210mm, and tolerance is +/- 1mm；Annealing, with box-annealing furnace to crowded
Compo pipe after pressure is made annealing treatment, and annealing temperature is 100-200 degree Celsius, and annealing time is 30-40 minute；Flaw detection, will
The compo pipe completing out that extrudes and anneal is detected a flaw, and percentage of detection is 100%；Surface treatment, the compo pipe that annealing is completed
Carry out turnning and milling so as to inside and outside smooth, external diameter is 228mm, tolerance is +/- 0.5mm, internal diameter is 212mm, tolerance is +/- 0.5mm,
Length is 500mm, and tolerance is +/- 1mm, then packs and puts in storage.
Compared with existing leaded tin bronze alloys, the novel copper-base alloy pipe used for high-speed railway that the present embodiment provides,
By adding magnesium elements on the basis of keeping or insignificantly reducing former machinability containing Redford alloy and wear resistant friction reducing, prevent
The addition of lead.
Embodiment 5
A kind of novel copper-base alloy pipe used for high-speed railway, composed of the following components: account for the aluminium of compo pipe gross weight 0.3%,
Account for the phosphorus of compo pipe gross weight 0.5%, account for the antimony of compo pipe gross weight 1.5%, account for the magnesium of compo pipe gross weight 0.2%, account for conjunction
The silicon of golden pipe gross weight 1%, accounts for the tin of compo pipe gross weight 10%, accounts for the zinc of compo pipe gross weight 4%, balance of copper.
According to proportioning, electrolysis Cu-Sn-Zn, aluminium, phosphorus, antimony, silicon are placed in main frequency furnace and carry out vacuum melting, be heated to
After 1150-1200 degree Celsius is completely melt, it is incubated under vacuum conditions to 1100 degrees Celsius, temperature retention time is 30-40 minute；
Magnesium metal is proportionally added to the Cu-Sn-Zn after insulation, aluminium, phosphorus, antimony, in silicon alloy solution, and uses special graphite immediately
After the alloy liquid being completely melt is sufficiently stirred for by instrument, cover high-purity flaky graphite powder in the above to prevent its oxygen
Change, thickness is 15-20cm；It is incubated further, temperature retention time is 30-40 minute, is taken in stove with Spike direct-reading spectrometer
The sample going out carries out 3-6 composition inspection, to determine its alloying component within prescribed limit；Again after insulation 20-30 minute,
Again it is warming up to 1200 degrees Celsius, and opens the vibrating device of main frequency furnace, being cast as external diameter using vertical continuous casting method is
245mm, internal diameter is 195mm, and length is the blank compo pipe of 550mm；With light ingot machine, Surface Machining is carried out to blank compo pipe, plus
Work is 240mm for any surface finish external diameter, and internal diameter is 200mm, and length is 540mm, is extruded using 2500 tons of double-acting extruding machines, alloy
Ingot heating-up temperature is 180-200 degree Celsius, and extrusion temperature is 500 degrees Celsius, extrusion speed v=4mm/s, after multiple extruding
Compo pipe is 230mm for external diameter, and tolerance is +/- 1mm, internal diameter 210mm, and tolerance is +/- 1mm；Annealing, with box-annealing furnace to crowded
Compo pipe after pressure is made annealing treatment, and annealing temperature is 100-200 degree Celsius, and annealing time is 30-40 minute；Flaw detection, will
The compo pipe completing out that extrudes and anneal is detected a flaw, and percentage of detection is 100%；Surface treatment, the compo pipe that annealing is completed
Carry out turnning and milling so as to inside and outside smooth, external diameter is 228mm, tolerance is +/- 0.5mm, internal diameter is 212mm, tolerance is +/- 0.5mm,
Length is 500mm, and tolerance is +/- 1mm, then packs and puts in storage.
Compared with existing leaded tin bronze alloys, the novel copper-base alloy pipe used for high-speed railway that the present embodiment provides,
By adding magnesium elements on the basis of keeping or insignificantly reducing former machinability containing Redford alloy and wear resistant friction reducing, prevent
The addition of lead.
The foregoing is only presently preferred embodiments of the present invention, be not used for limiting the practical range of the present invention；If do not taken off
From the spirit and scope of the present invention, the present invention is modified or equivalent, all should cover in the claims in the present invention
In the middle of protection domain.
Claims (7)
1. a kind of novel copper-base alloy pipe used for high-speed railway is it is characterised in that composed of the following components: accounts for compo pipe gross weight
The aluminium of 0.1-0.8%, accounts for the phosphorus of compo pipe gross weight 0.25-0.5%, accounts for the antimony of compo pipe gross weight 0.5-1.5%, accounts for alloy
The magnesium of pipe gross weight 0.3-0.5%, accounts for the silicon of compo pipe gross weight 2-3%, accounts for the tin of compo pipe gross weight 10-13%, accounts for conjunction
The zinc of golden pipe gross weight 4-6%, balance of copper.
2. novel copper-base alloy pipe used for high-speed railway according to claim 1 is it is characterised in that composed of the following components:
Account for the aluminium of compo pipe gross weight 0.8%, account for the phosphorus of compo pipe gross weight 0.5%, account for the antimony of compo pipe gross weight 1.5%, account for conjunction
The magnesium of golden pipe gross weight 0.5%, accounts for the silicon of compo pipe gross weight 3%, accounts for the tin of compo pipe gross weight 13%, accounts for compo pipe gross weight
The zinc of amount 6%, balance of copper.
3. novel copper-base alloy pipe used for high-speed railway according to claim 1 is it is characterised in that composed of the following components:
Account for the aluminium of compo pipe gross weight 0.4%, account for the phosphorus of compo pipe gross weight 0.25%, account for the antimony of compo pipe gross weight 1%, account for alloy
The magnesium of pipe gross weight 0.3%, accounts for the silicon of compo pipe gross weight 2%, accounts for the tin of compo pipe gross weight 12%, accounts for compo pipe gross weight
5% zinc, balance of copper.
4. the novel copper-base alloy pipe used for high-speed railway according to any one in claim 1-3 is it is characterised in that described
Copper is cathode copper.
5. a kind of preparation method of the novel copper-base alloy pipe used for high-speed railway as described in any one in claim 1-3, its
It is characterised by, comprise the following steps:
1) according to proportioning, Cu-Sn-Zn, aluminium, phosphorus, antimony, silicon are placed in main frequency furnace and carry out vacuum melting, be heated to 1150-
After 1200 degrees Celsius are completely melt, it is incubated under vacuum conditions to 1100 degrees Celsius, temperature retention time is 30-40 minute；
2) magnesium metal is proportionally added to the Cu-Sn-Zn after insulation, aluminium, phosphorus, antimony, in silicon alloy solution, and uses spy immediately
After the alloy liquid being completely melt is sufficiently stirred for by graphite instrument processed, cover high-purity flaky graphite powder in the above to prevent
Its oxidation, thickness is 15-20cm；
3) it is incubated further, temperature retention time is 30-40 minute, carries out composition inspection with spectrometer to the sample taking out in stove,
To determine its alloying component within prescribed limit；
4), again after insulation 20-30 minute, again it is warming up to 1200 degrees Celsius, and opens the vibrating device of main frequency furnace, adopt
Vertical continuous casting method is cast as the blank compo pipe of given size and length；
5) with light ingot machine, Surface Machining is carried out to blank compo pipe, using extruder extruding, alloy pig heating-up temperature is 180-200
Degree Celsius, extrusion temperature is 500 degrees Celsius, extrusion speed v=4mm/s, obtains the alloy of given size after multiple extruding
Pipe semi-finished product；
6) anneal, with annealing furnace, the compo pipe after extruding is made annealing treatment, annealing temperature is 100-200 degree Celsius, annealing
Time is 30-40 minute；
7) detect a flaw, will extrude and the compo pipe completing out of annealing is detected a flaw, percentage of detection is 100%；
8) it is surface-treated, the compo pipe that completes of annealing is carried out turnning and milling so as to inside and outside smooth, obtain becoming of given size and length
Product, then pack and put in storage.
6. the preparation method of novel copper-base alloy pipe used for high-speed railway according to claim 5 is it is characterised in that step 3)
Described in spectrometer adopt Spike direct-reading spectrometer.
7. the preparation method of novel copper-base alloy pipe used for high-speed railway according to claim 5 is it is characterised in that step 3)
In composition amount of testing be 3-6 time.
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| CN105200263A (en) * | 2015-10-30 | 2015-12-30 | 苏州天兼新材料科技有限公司 | Novel Pb-free tin bronze alloy and method for producing a pipe from alloy |
| CN105420540A (en) * | 2015-11-02 | 2016-03-23 | 苏州金仓合金新材料有限公司 | Environment-friendly lead-free alloy new material alloy pipe applicable to high-speed locomotive |
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| JP2001226725A (en) * | 2000-02-10 | 2001-08-21 | Fujii Seisakusho:Kk | Free cutting copper alloy for working and method for producing bar stock or wire rod thereof |
| KR100513947B1 (en) * | 2002-03-29 | 2005-09-09 | 닛코 킨조쿠 가부시키가이샤 | A copper alloy having good pressing workability and manufacturing method therefor |
| WO2006016442A1 (en) * | 2004-08-10 | 2006-02-16 | Sanbo Shindo Kogyo Kabushiki Kaisha | Copper-base alloy casting with refined crystal grains |
| CN103060606A (en) * | 2013-01-16 | 2013-04-24 | 苏州金仓合金新材料有限公司 | Novel environment-friendly antimony-added alloy bar |
| CN103484715B (en) * | 2013-09-16 | 2015-10-07 | 苏州金仓合金新材料有限公司 | A kind of rolling lead-free copper-based alloy rod and preparation method thereof |
| CN103946402B (en) * | 2014-01-03 | 2016-11-16 | 嘉兴艾迪西暖通科技有限公司 | Unleaded without bismuth without silizin |
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2015
- 2015-01-27 CN CN201510040732.8A patent/CN104593637B/en active Active
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