CN103484715B - A kind of rolling lead-free copper-based alloy rod and preparation method thereof - Google Patents
A kind of rolling lead-free copper-based alloy rod and preparation method thereof Download PDFInfo
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- 239000000956 alloy Substances 0.000 title claims abstract description 115
- 229910045601 alloy Inorganic materials 0.000 title claims abstract description 114
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 229910052802 copper Inorganic materials 0.000 title claims abstract description 69
- 239000010949 copper Substances 0.000 title claims abstract description 69
- 238000005096 rolling process Methods 0.000 title claims abstract description 41
- 238000002360 preparation method Methods 0.000 title claims abstract description 13
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims abstract description 30
- 229910052725 zinc Inorganic materials 0.000 claims abstract description 30
- 239000011701 zinc Substances 0.000 claims abstract description 30
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims abstract description 28
- 229910052749 magnesium Inorganic materials 0.000 claims abstract description 20
- 239000011777 magnesium Substances 0.000 claims abstract description 20
- 239000000463 material Substances 0.000 claims abstract description 20
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims abstract description 18
- 238000005098 hot rolling Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 11
- 238000000137 annealing Methods 0.000 claims description 27
- 238000009413 insulation Methods 0.000 claims description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 13
- 230000005611 electricity Effects 0.000 claims description 12
- 238000002791 soaking Methods 0.000 claims description 10
- 229910002804 graphite Inorganic materials 0.000 claims description 9
- 239000010439 graphite Substances 0.000 claims description 9
- 238000003756 stirring Methods 0.000 claims description 9
- 238000001514 detection method Methods 0.000 claims description 8
- 229910001297 Zn alloy Inorganic materials 0.000 claims description 5
- 239000000155 melt Substances 0.000 claims description 5
- 238000002844 melting Methods 0.000 claims description 5
- 230000008018 melting Effects 0.000 claims description 5
- 238000004381 surface treatment Methods 0.000 claims description 5
- 238000010792 warming Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 4
- 238000005266 casting Methods 0.000 claims description 2
- 238000005070 sampling Methods 0.000 claims description 2
- 238000005520 cutting process Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910000881 Cu alloy Inorganic materials 0.000 description 7
- 239000000047 product Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 238000009749 continuous casting Methods 0.000 description 4
- 238000005275 alloying Methods 0.000 description 3
- 239000000470 constituent Substances 0.000 description 3
- 230000008676 import Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 238000003801 milling Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000003303 reheating Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 238000011534 incubation Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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Abstract
The present invention relates to a kind of rolling lead-free copper-based alloy rod and preparation method thereof.Rolling lead-free copper-based alloy rod of the present invention, is made up of the component of following weight proportion: the zinc of the magnesium of 0.2%-0.5%, the tin of 1%-2%, 10%-12% and surplus are copper.Rolling lead-free copper-based alloy rod of the present invention is that one is not leaded, and still has the alloy bar of high strength, good cutting ability and properties of antifriction and wear resistance.Preparation method of the present invention adopts the method for hot rolling to complete the production of alloy bar material especially, improves the intensity of this alloy bar, thus meets it better in such as needs high strength, the application in the special dimension of high-wearing feature.
Description
Technical field
The present invention relates to a kind of alloy material, particularly a kind of rolling lead-free copper-based alloy rod and preparation method thereof.
Background technology
Why existing copper alloy containing lead has good cutting ability and properties of antifriction and wear resistance, mainly because lead exists with individual event in copper alloy, plays good chip breaking effect thus when cutting; Simultaneously under the environment of frictional wear, because the shearing resistance of lead is very low, make the frictional coefficient of leaded copper alloy lower at the lead on copper alloy parts surface.Therefore, lead element is used in brass alloys more at large.
But along with modern industry and Economic development, especially to the requirement of environmental protection, the enforcement of instruction policy as plumbous in ROHS taboo in the electronics industry, this makes plumbous use receive greatly to limit.Meanwhile, due to the development of modern industry, in many fields, the intensity of material and wear resistance are had higher requirement.
Therefore, be badly in need of one in prior art not leaded, and there is the Copper alloy bar of high strength, good cutting ability and wear resisting property simultaneously.
Summary of the invention
The object of the invention is the difficult problem for existing in prior art, a kind of rolling lead-free copper-based alloy rod with high strength, high rigidity, high-wearing feature and good cutting ability is provided.
In order to realize foregoing invention object, the technical solution used in the present invention is as follows:
A rolling lead-free copper-based alloy rod, is made up of the component of following weight proportion: the zinc of the magnesium of 0.2%-0.5%, the tin of 1%-2%, 10%-12% and surplus are copper.
In the preferred embodiment of the present invention, the rolling lead-free copper-based alloy rod is made up of the component of following weight proportion: the zinc of the magnesium of 0.3%-0.4%, the tin of 1.2%-1.8%, 10.5%-11.5% and surplus are copper.
In another preferred embodiment of the present invention, the rolling lead-free copper-based alloy rod is made up of the component of following weight proportion: the magnesium of 0.35%, the tin of 1.5%, 11% zinc and surplus be copper.
In another preferred embodiment of the present invention, the rolling lead-free copper-based alloy rod is made up of the component of following weight proportion: the magnesium of 0.2%, the tin of 1%, 10% zinc and surplus be copper.
In a preferred embodiment more of the present invention, the rolling lead-free copper-based alloy rod is made up of the component of following weight proportion: the magnesium of 0.5%, the tin of 2%, 12% zinc and surplus be copper.
Another object of the present invention is to provide a kind of preparation method of the rolling lead-free copper-based alloy rod.
The preparation method of rolling lead-free copper-based alloy rod of the present invention, comprises the following steps:
1) take electricity Xie Tong ﹑ Xi ﹑ zinc according to proportioning to be placed in main frequency furnace and to carry out vacuum melting, heating makes after described electricity Xie Tong ﹑ Xi ﹑ zinc melts completely, to be incubated under vacuum conditions;
2) MAGNESIUM METAL taken according to proportioning is added to after insulation in Tong ﹑ Xi ﹑ zinc alloy solution, and after stirring the alloy solution of fusing being mixed, cover scales flake graphite in powder on alloy solution;
3) by step 2) in the alloy solution that mixes be incubated, after insulation, be warming up to 1200 DEG C, and open the vibrating device of main frequency furnace, adopt the method for horizontal casting that alloy solution is cast as blank alloy bar material;
4) with light ingot machine to step 3) in after the blank alloy bar material that obtains carries out surface working, alloy bar material surface working completed is placed in annealing furnace and heats, and obtains the alloy bar material heated;
5) by step 4) in obtain the alloy bar material heated carry out hot rolling, annealing, flaw detection and surface treatment successively after obtain alloy bar finished product.
The Heating temperature that above-mentioned heating makes described electricity Xie Tong ﹑ Xi ﹑ zinc melt completely is 1150 DEG C-1200 DEG C; The holding temperature be incubated under described vacuum state is 1100 DEG C, and soaking time is 30-40 minute.
The stirring tool of above-mentioned stirring is graphite instrument, and the thickness of described cover scales flake graphite in powder is 15cm-20cm.
By rapid 2) in the alloy solution that mixes be incubated, this incubation step can be carried out in two steps, also a step can be incubated the sufficiently long time.If a point step is carried out, the soaking time be so incubated is 50-70 minute, carries out at temperature is 1100 DEG C.If carry out in two steps, the soaking time of so the first step insulation can be 30-40 minute, and the soaking time of second step insulation can be 20-30 minute, and two step insulations all can be carried out at 1100 DEG C; Particularly, can when the first step is incubated, sampling detecting step 3) in the component content of the above-mentioned alloy solution mixed.
Above-mentioned steps 4) in, described in be placed in the Heating temperature that annealing furnace carries out heating be 800 DEG C-850 DEG C, heat-up time is 1-1.5 hour;
Above-mentioned steps 5) in, the annealing temperature of described annealing is 100 DEG C-200 DEG C, and annealing time is 30-40 minute.
The principle of design of the composition of rolling lead-free copper-based alloy rod of the present invention is keeping or insignificantly reducing on the former basis containing Redford alloy machinability and wear resistant friction reducing, stops plumbous adding and realize above-mentioned technical purpose by adding magnesium elements.
Principle is the independent phase utilizing the magnesium elements added to form Dispersed precipitate in copper alloy, and these play chip breaking effect when cutting, thus improve the machinability of copper alloy.Therefore rolling lead-free copper-based alloy of the present invention rod is made also can to have good cutting ability and properties of antifriction and wear resistance in lead-free situation.
In addition, production technique of the present invention is according to specific composition proportion Jiang Mei ﹑ Xi ﹑ Xin ﹑ copper at a proper temperature, by continuous casting blank ingot, produces the alloy bar material that can replace completely containing lead element with extrusion machine extruding.Particularly, adopt the method for hot rolling to complete the production of alloy bar material, improve the intensity of this alloy bar, thus meet it better in such as needs high strength, the application in the special dimension of high-wearing feature.
Accompanying drawing explanation
Fig. 1 is the schema of the preparation method of rolling lead-free copper-based alloy rod of the present invention.
Embodiment
In order to make object of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explain the present invention, be not intended to limit the present invention.
embodiment 1
In the present embodiment rolling lead-free copper-based alloy rod, be made up of the component of following weight proportion: the magnesium of 0.2%, the tin of 1%, 10% zinc and surplus be copper.
The rolling lead-free copper-based alloy rod in the present embodiment, by following steps obtained (as shown in Figure 1):
Step one: take electricity Xie Tong ﹑ Xi ﹑ zinc and MAGNESIUM METAL according to proportioning, the electricity Xie Tong ﹑ Xi ﹑ zinc taken is placed in main frequency furnace and carries out vacuum melting, being heated to 1150 DEG C makes after it melts completely, and be incubated to 1100 DEG C under vacuum conditions, soaking time is 30 minutes.
Step 2: the MAGNESIUM METAL taken according to proportioning to be added in above-mentioned steps one after insulation in Tong ﹑ Xi ﹑ zinc alloy solution, and after the alloy liquid melted completely fully being stirred with special graphite instrument immediately, on the alloy solution that this stirs, cover high purity flaky graphite powder be oxidized to prevent it, thickness is about 15cm.
Wherein, the purity of high purity flaky graphite powder is 99.9%-99.99% (mass percent).
Step 3: by rapid 2) in the alloy solution that mixes be incubated further, this insulation is carried out in two steps.Be respectively:
The first step: at 1100 DEG C, is incubated 30 minutes, carries out 3 composition inspections, to determine that its alloying constituent is within specialized range, namely in ratio range of the present invention with German import Spike direct-reading spectrometer to the sample taken out in stove.
Second step: at 1100 DEG C, after being again incubated 20 minutes, reheating and is warming up to 1200 DEG C, and open the vibrating device of main frequency furnace.Adopting horizontal continuous casting method to be cast as external diameter is 160mm, and length is the blank alloy bar material of 550mm, now also claims blank copper rod, blank alloy bar.
Step 4: with light ingot machine, surface working is carried out to the blank alloy bar material obtained in step 3, make it be processed as any surface finish, diameter is 155mm, and length is the alloy bar of 540mm; Alloy bar Vehicle Processing completed is positioned in annealing furnace and heats, and Heating temperature is 800 DEG C.Heat-up time is 1 hour, obtains the alloy bar after having heated, also claims copper ingot.
Step 5: adopt four roll reversing rollers to carry out hot rolling to the alloy bar (i.e. copper ingot) after having heated, roll speed is V=1mm/s; After repeatedly hot rolling, making the diameter of alloy bar be 105mm tolerance is +/-1mm, and length is 1170mm.
Step 6: annealing, carry out anneal with box-annealing furnace to the alloy bar after hot rolling: annealing temperature is 100 DEG C, annealing time is 30 minutes.
Step 7: flaw detection, will extrude and the alloy bar of having annealed out is detected a flaw, and percentage of detection is 100%.
Step 8: surface treatment, carries out turnning and milling by the alloy bar of having annealed, makes its smooth surface, and diameter is 100mm tolerance is +/-0.5mm, and length is 1100mm tolerance is +/-1mm; Pack and put in storage.
embodiment 2
In the present embodiment rolling lead-free copper-based alloy rod, be made up of the component of following weight proportion: the magnesium of 0.5%, the tin of 2%, 12% zinc and surplus be copper.
The rolling lead-free copper-based alloy rod in the present embodiment, by following steps obtained (as shown in Figure 1):
Step one: take electricity Xie Tong ﹑ Xi ﹑ zinc and MAGNESIUM METAL according to proportioning, the electricity Xie Tong ﹑ Xi ﹑ zinc taken is placed in main frequency furnace and carries out vacuum melting, being heated to 1200 DEG C makes after it melts completely, and be incubated to 1100 DEG C under vacuum conditions, soaking time is 40 minutes.
Step 2: the MAGNESIUM METAL taken according to proportioning to be added in above-mentioned steps one after insulation in Tong ﹑ Xi ﹑ zinc alloy solution, and after the alloy liquid melted completely fully being stirred with special graphite instrument immediately, on the alloy solution that this stirs, cover high purity flaky graphite powder be oxidized to prevent it, thickness is about 20cm.
Wherein, the purity of high purity flaky graphite powder is 99.9%-99.99% (mass percent).
Step 3: by rapid 2) in the alloy solution that mixes be incubated further, this insulation is carried out in two steps.Be respectively:
The first step: at 1100 DEG C, is incubated 40 minutes, carries out 6 composition inspections, to determine that its alloying constituent is within specialized range, namely in ratio range of the present invention with German import Spike direct-reading spectrometer to the sample taken out in stove.
Second step: at 1100 DEG C, after being again incubated 30 minutes, reheating and is warming up to 1200 DEG C, and open the vibrating device of main frequency furnace.Adopting horizontal continuous casting method to be cast as external diameter is 160mm, and length is the blank alloy bar material of 550mm, now also claims blank copper rod, blank alloy bar.
Step 4: with light ingot machine, surface working is carried out to the blank alloy bar material obtained in step 3, make it be processed as any surface finish, diameter is 155mm, and length is the alloy bar of 540mm; Alloy bar Vehicle Processing completed is positioned in annealing furnace and heats, and Heating temperature is 850 DEG C.Heat-up time is 1.5 hours, obtains the alloy bar after having heated, also claims copper ingot.
Step 5: adopt four roll reversing rollers to carry out hot rolling to the alloy bar (i.e. copper ingot) after having heated, roll speed is V=1mm/s; After repeatedly hot rolling, making the diameter of alloy bar be 105mm tolerance is +/-1mm, and length is 1170mm.
Step 6: annealing, carry out anneal with box-annealing furnace to the alloy bar after hot rolling: annealing temperature is 200 DEG C, annealing time is 40 minutes.
Step 7: flaw detection, will extrude and the alloy bar of having annealed out is detected a flaw, and percentage of detection is 100%.
Step 8: surface treatment, carries out turnning and milling by the alloy bar of having annealed, makes its smooth surface, and diameter is 100mm tolerance is +/-0.5mm, and length is 1100mm tolerance is +/-1mm; Pack and put in storage.
embodiment 3
In the present embodiment rolling lead-free copper-based alloy rod, be made up of the component of following weight proportion: the magnesium of 0.35%, the tin of 1.5%, 11% zinc and surplus be copper.
The rolling lead-free copper-based alloy rod in the present embodiment, by following steps obtained (as shown in Figure 1):
Step one: take electricity Xie Tong ﹑ Xi ﹑ zinc and MAGNESIUM METAL according to proportioning, the electricity Xie Tong ﹑ Xi ﹑ zinc taken is placed in main frequency furnace and carries out vacuum melting, being heated to 1180 DEG C makes after it melts completely, and be incubated to 1100 DEG C under vacuum conditions, soaking time is 35 minutes.
Step 2: the MAGNESIUM METAL taken according to proportioning to be added in above-mentioned steps one after insulation in Tong ﹑ Xi ﹑ zinc alloy solution, and after the alloy liquid melted completely fully being stirred with special graphite instrument immediately, on the alloy solution that this stirs, cover high purity flaky graphite powder be oxidized to prevent it, thickness is about 18cm.
Wherein, the purity of high purity flaky graphite powder is 99.9%-99.99% (mass percent).
Step 3: by rapid 2) in the alloy solution that mixes be incubated further, this insulation is carried out in two steps.Be respectively:
The first step: at 1100 DEG C, is incubated 35 minutes, carries out 5 composition inspections, to determine that its alloying constituent is within specialized range, namely in ratio range of the present invention with German import Spike direct-reading spectrometer to the sample taken out in stove.
Second step: at 1100 DEG C, after being again incubated 25 minutes, reheating and is warming up to 1200 DEG C, and open the vibrating device of main frequency furnace.Adopting horizontal continuous casting method to be cast as external diameter is 160mm, and length is the blank alloy bar material of 550mm, now also claims blank copper rod, blank alloy bar.
Step 4: with light ingot machine, surface working is carried out to the blank alloy bar material obtained in step 3, make it be processed as any surface finish, diameter is 155mm, and length is the alloy bar of 540mm; Alloy bar Vehicle Processing completed is positioned in annealing furnace and heats, and Heating temperature is 820 DEG C.Heat-up time is 1.3 hours, obtains the alloy bar after having heated, also claims copper ingot.
Step 5: adopt four roll reversing rollers to carry out hot rolling to the alloy bar (i.e. copper ingot) after having heated, roll speed is V=1mm/s; After repeatedly hot rolling, making the diameter of alloy bar be 105mm tolerance is +/-1mm, and length is 1170mm.
Step 6: annealing, carry out anneal with box-annealing furnace to the alloy bar after hot rolling: annealing temperature is 150 DEG C, annealing time is 35 minutes.
Step 7: flaw detection, will extrude and the alloy bar of having annealed out is detected a flaw, and percentage of detection is 100%.
Step 8: surface treatment, carries out turnning and milling by the alloy bar of having annealed, makes its smooth surface, and diameter is 100mm tolerance is +/-0.5mm, and length is 1100mm tolerance is +/-1mm; Pack and put in storage.
embodiment 4
In the present embodiment rolling lead-free copper-based alloy rod, be made up of the component of following weight proportion: the magnesium of 0.3%, the tin of 1.5%, 12% zinc and surplus be copper.
The rolling lead-free copper-based alloy rod finished product is obtained by the method identical with embodiment 1.
embodiment 5
In the present embodiment rolling lead-free copper-based alloy rod, be made up of the component of following weight proportion: the magnesium of 0.5%, the tin of 1%, 12% zinc and surplus be copper.
The rolling lead-free copper-based alloy rod finished product is obtained by the method identical with embodiment 2.
embodiment 6
In the present embodiment rolling lead-free copper-based alloy rod, be made up of the component of following weight proportion: the magnesium of 0.4%, the tin of 1.5%, 11% zinc and surplus be copper.
The rolling lead-free copper-based alloy rod finished product is obtained by the method identical with embodiment 3.
The rolling lead-free copper-based alloy obtained in the above embodiment of the present invention 1-6 rod finished product finished product is carried out performance determination experiment, and its mechanical performance parameter is as shown in table 1.
Table 1
The foregoing is only preferred embodiment of the present invention, be not used for limiting practical range of the present invention; If do not depart from the spirit and scope of the present invention, the present invention is modified or equivalent to replace, in the middle of the protection domain that all should be encompassed in the claims in the present invention.
Claims (11)
1. rolling lead-free copper-based alloy rod, is characterized in that, be made up of the component of following weight proportion: the magnesium of 0.35%, the tin of 1.5%, 11% zinc and surplus be copper.
2. rolling lead-free copper-based alloy rod, is characterized in that, be made up of the component of following weight proportion: the magnesium of 0.2%, the tin of 1%, 10% zinc and surplus be copper.
3. rolling lead-free copper-based alloy rod, is characterized in that, be made up of the component of following weight proportion: the magnesium of 0.5%, the tin of 2%, 12% zinc and surplus be copper.
4. rolling lead-free copper-based alloy rod, is characterized in that, be made up of the component of following weight proportion: the magnesium of 0.3%, the tin of 1.5%, 12% zinc and surplus be copper.
5. rolling lead-free copper-based alloy rod, is characterized in that, be made up of the component of following weight proportion: the magnesium of 0.5%, the tin of 1%, 12% zinc and surplus be copper.
6. rolling lead-free copper-based alloy rod, is characterized in that, be made up of the component of following weight proportion: the magnesium of 0.4%, the tin of 1.5%, 11% zinc and surplus be copper.
7. a preparation method for the rolling lead-free copper-based alloy rod any one of claim 1-6 as described in claim, is characterized in that, comprise the following steps:
1) take electricity Xie Tong ﹑ Xi ﹑ zinc according to described proportioning arbitrary in claim 1-6 to be placed in main frequency furnace and to carry out vacuum melting, heating makes after described electricity Xie Tong ﹑ Xi ﹑ zinc melts completely, to be incubated under vacuum conditions;
2) MAGNESIUM METAL taken according to described proportioning arbitrary in claim 1-6 is added to after insulation in Tong ﹑ Xi ﹑ zinc alloy solution, and after stirring the alloy solution of fusing being mixed, cover scales flake graphite in powder on alloy solution;
3) by step 2) in the alloy solution that mixes be incubated, after insulation, be warming up to 1200 DEG C, and open the vibrating device of main frequency furnace, adopt the method for horizontal casting that alloy solution is cast as blank alloy bar material;
4) with light ingot machine to step 3) in after the blank alloy bar material that obtains carries out surface working, alloy bar material surface working completed is placed in annealing furnace and heats, and obtains the alloy bar material heated;
5) by step 4) in obtain the alloy bar material heated carry out hot rolling, annealing, flaw detection and surface treatment successively after obtain alloy bar finished product.
8. the preparation method of rolling lead-free copper-based alloy rod according to claim 7, is characterized in that, described step 1) in, the Heating temperature that described heating makes described electricity Xie Tong ﹑ Xi ﹑ zinc melt completely is 1150 DEG C-1200 DEG C; The holding temperature be incubated under described vacuum state is 1100 DEG C, and soaking time is 30-40 minute.
9. the preparation method of rolling lead-free copper-based alloy rod according to claim 7, is characterized in that, described step 2) in, the stirring tool of described stirring is graphite instrument, and the thickness of described cover scales flake graphite in powder is 15cm-20cm.
10. the preparation method of rolling lead-free copper-based alloy rod according to claim 7, it is characterized in that, described step 3) in, described insulation is carried out in two steps, the soaking time of the first step insulation is 30-40 minute, the soaking time of second step insulation is 20-30 minute, and described insulation is all carried out at 1100 DEG C; When the insulation of the described the first step, sampling detecting step 3) described in the component content of alloy solution that mixes.
The preparation method of 11. rolling lead-free copper-based alloy rods according to claim 7, is characterized in that, described step 4) in, described in be placed in the Heating temperature that annealing furnace carries out heating be 800 DEG C-850 DEG C, heat-up time is 1-1.5 hour;
Described step 5) in, the annealing temperature of described annealing is 100 DEG C-200 DEG C, and annealing time is 30-40 minute.
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| CN112708798B (en) * | 2020-12-22 | 2022-03-22 | 厦门大学深圳研究院 | High-strength high-toughness corrosion-resistant lead-free arsenic-free brass alloy and preparation method thereof |
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| CN1570165A (en) * | 2003-02-28 | 2005-01-26 | 威兰德-沃克公开股份有限公司 | Lead-free copper alloy and a method of manufacture |
| CN103060605A (en) * | 2013-01-16 | 2013-04-24 | 苏州金仓合金新材料有限公司 | Novel lead-free environmentally-friendly high-strength wearable copper-based alloy rod and preparation method thereof |
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| JP2001064742A (en) * | 1999-06-24 | 2001-03-13 | Chuetsu Metal Works Co Ltd | Brass alloy excellent in corrosion resistance, mechinability and hot workability |
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| CN1570165A (en) * | 2003-02-28 | 2005-01-26 | 威兰德-沃克公开股份有限公司 | Lead-free copper alloy and a method of manufacture |
| CN103060605A (en) * | 2013-01-16 | 2013-04-24 | 苏州金仓合金新材料有限公司 | Novel lead-free environmentally-friendly high-strength wearable copper-based alloy rod and preparation method thereof |
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