CN103045899B - Lead-free environmentally-friendly high-intensity wear resistant copper-base novel alloy tube and preparation method thereof - Google Patents
Lead-free environmentally-friendly high-intensity wear resistant copper-base novel alloy tube and preparation method thereof Download PDFInfo
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Abstract
The invention relates to a lead-free environmentally-friendly high-intensity wear resistant copper-base novel alloy tube which consists of the following components: 0.05-0.7% of manganese, 2-11.5% of tin, 0.01-3% of phosphor, 1.5-10% of zinc and the balance of water according to total weight of the alloy tube. The lead-free environmentally-friendly high-intensity wear resistant copper-base novel alloy tube disclosed by the invention not only has performances of the conventional lead-containing tin-bronze alloy tube but also replaces the lead element by the manganese element to meet the demand of environmental friendliness.
Description
Technical field
The present invention relates to alloy pipe field, be specifically related to a kind of leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe and preparation method thereof.
Background technology
The leaded tin bronze alloys of tradition has higher antifriction quality, good workability, is easy to welding and soldering and in atmosphere and fresh water, has good wear resistance; It is mainly for the manufacture of bearing the part that rubs and carry out necessary welding in aviation, automobile and other industrial sectors, such as: the liner of cylinder piston pin bush(ing), bearing and lining, good fortune connecting rod bushing, disk and packing ring etc.
But leaded tin bronze alloys is due to leaded, not only easily cause during hot-work hot-short, therefore it can only process under cold conditions; More can not meet high-level environmental requirement.
Summary of the invention
The object of the present invention is to provide a kind of leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe and manufacture method thereof that not only there is the performance of traditional leaded bronze alloy and meet environmental requirement.
In order to realize foregoing invention object, the technical solution used in the present invention is as follows:
A leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, is characterized in that, composed of the following components: the manganese that accounts for compo pipe gross weight 0.05-7%, account for the tin of compo pipe gross weight 2-11.5%, account for the phosphorus of compo pipe gross weight 0.01-3%, account for the zinc of compo pipe gross weight 1.5-10%, surplus is copper.
Preferably, described leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, it is characterized in that, by following component, formed: the manganese that accounts for compo pipe gross weight 1-3%, account for the tin of compo pipe gross weight 2-4%, account for the phosphorus of compo pipe gross weight 0.01-0.5%, account for the zinc of compo pipe gross weight 1.5-4.5%, surplus is copper.
Preferably, described leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, it is characterized in that, by following component, formed: the manganese that accounts for compo pipe gross weight 0.05-0.5%, account for the tin of compo pipe gross weight 4-6%, account for the phosphorus of compo pipe gross weight 0.01-0.5%, account for the zinc of compo pipe gross weight 5-7%, surplus is copper.
Preferably, described leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, it is characterized in that, by following component, formed: the manganese that accounts for compo pipe gross weight 3-5%, account for the tin of compo pipe gross weight 7-9%, account for the phosphorus of compo pipe gross weight 0.05-0.7%, account for the zinc of compo pipe gross weight 4-6%, surplus is copper.
Preferably, described leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, is characterized in that, by following component, formed: account for the manganese of compo pipe gross weight 5-7%, account for the tin of compo pipe gross weight 9-11%, account for the phosphorus of compo pipe gross weight 1-3%, account for the zinc of compo pipe gross weight 2-4%, surplus is copper.
Preferably, described leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, it is characterized in that, by following component, formed: the manganese that accounts for compo pipe gross weight 4-6%, account for the tin of compo pipe gross weight 10-11.5%, account for the phosphorus of compo pipe gross weight 0.5-1.5%, account for the zinc of compo pipe gross weight 8-10%, surplus is copper.
Preferably, copper can be electrolytic copper.
The preparation method of high-strength corrosion-resisting copper base alloy rod for oceanographic engineering provided by the invention, comprises the steps:
1) according to proportioning, Tong ﹑ manganese, phosphorus, tin, zinc are placed in main frequency furnace, are heated to 1200-1350 ℃, after it dissolves completely, be incubated to 1100-1300 ℃;
2) after the alloy liquid of fusing completely fully being stirred with graphite rod, cover in the above high purity flaky graphite powder to prevent its oxidation, thickness is about 10-25cm;
3) insulation, after 50 minutes-2.5 hours, is carried out three composition checks with German Spike direct-reading spectrometer to the sample taking out in stove, to determine that its alloying constituent is within specialized range;
4) be further incubated after 30-60 minute, be again warming up to 1200-1350 ℃, and open main frequency furnace vibrating device, adopting horizontal continuous casting method to be cast as external diameter is 60-100mm, and internal diameter is 30-50mm, the blank alloy pipe that length is 500-1200mm;
5) with copper ingot milling machine, blank copper pipe is carried out to surface working, be processed as any surface finish external diameter 65-105mm, internal diameter is 35-55mm, the copper pipe that length is 500-1200mm;
6) adopt 1200 tons of single action extrusion machine extruding: alloy pig Heating temperature is 200-350 ℃, and extrusion temperature is 450-550 ℃, and extrusion speed is V=10-15mm/s, and after extruding, the external diameter of copper pipe is 57-90mm, and internal diameter is 39-60mm, and length is 800-1450mm;
7) annealing, carries out anneal with box-annealing furnace to the copper pipe after pushing: annealing temperature is 200-350 ℃, and annealing time is 1-2.5 hour;
8) surface treatment, carries out peeling with thin skin film by the copper pipe of extruding, and making its external diameter is 50-88mm, and tolerance is +/-0.2mm; Internal diameter is 35-60mm, and tolerance is +/-0.1mm; And by compo pipe aligning, be cut into the finished product of length 750-1000mm;
9) finished product packing step 8) being obtained warehouse-in.
In preparation method of the present invention, copper can be electrolytic copper.
The invention has the beneficial effects as follows: the invention provides a kind of leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, it adopts metallic element manganese to replace lead element, and after manganese, zinc, tin, phosphorus, copper are melted at suitable temperature according to certain composition proportion, after horizontal casting, extruding and surface treatment, obtain can replacing the alloy pipe that contains lead element completely; The performance that the present invention has not only possessed traditional leaded tin bronze alloys has also met the requirement of environmental protection.
Embodiment
Below in conjunction with embodiment, the invention will be further described, but and unrestricted range of application of the present invention.
embodiment 1
Leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, composed of the following components: account for the manganese of compo pipe gross weight 1%, account for the tin of compo pipe gross weight 2%, account for the phosphorus of compo pipe gross weight 0.01%, account for the zinc of compo pipe gross weight 1.5%, surplus is copper.
Above-mentioned leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe makes by the following method:
Step 1: according to proportioning, Tong ﹑ manganese, phosphorus, tin, zinc are placed in main frequency furnace, are heated to 1230-1350 ℃ and dissolve rear insulation to 1300 ℃ completely;
Step 2: after the alloy liquid of fusing completely fully being stirred with graphite rod, cover in the above high purity flaky graphite powder to prevent its oxidation, thickness is about 15-20cm;
Step 3: be incubated after 50-60 minute, with German Spike direct-reading spectrometer, the sample taking out carried out to three composition checks in stove, to determine that its alloying constituent is within specialized range;
Step 4: be further incubated after 30-35 minute, be again warming up to 1350 ℃, and open main frequency furnace vibrating device, adopting horizontal continuous casting method to be cast as external diameter is 100mm, and internal diameter is 50mm, the blank alloy pipe that length is 500;
Step 5: with copper ingot milling machine, blank copper pipe is carried out to surface working, being processed as any surface finish external diameter is 105mm, and internal diameter is 55mm, the copper pipe that length is 500mm;
Step 6: adopt 1200 tons of single action extrusion machine extruding: alloy pig Heating temperature 300-350 ℃, extrusion temperature is 550 ℃, and extrusion speed is V=10mm/s, and after extruding, the external diameter of copper pipe is 90mm, and internal diameter is 60mm, length is 800mm;
Step 7: annealing, with box-annealing furnace, the copper pipe after pushing is carried out to anneal: annealing temperature is 300-350 ℃, and annealing time is 2-2.5 hour;
Step 8: surface treatment, with thin skin film, the copper pipe of extruding is carried out to peeling, making its external diameter is 88mm, tolerance is +/-0.2mm; Internal diameter is 60mm, and tolerance is +/-0.1mm; And by compo pipe aligning, be cut into the finished product of length 750mm;
Step 9: the finished product packing that step 8 is obtained warehouse-in.
embodiment 2
Leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, composed of the following components: account for the manganese of compo pipe gross weight 3%, account for the tin of compo pipe gross weight 4%, account for the phosphorus of compo pipe gross weight 0.5%, account for the zinc of compo pipe gross weight 4.5%, surplus is copper.
Above-mentioned leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe finished product obtains by the method identical with embodiment 1.
embodiment 3
Leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, composed of the following components: account for the manganese of compo pipe gross weight 2%, account for the tin of compo pipe gross weight 3%, account for the phosphorus of compo pipe gross weight 0.25%, account for the zinc of compo pipe gross weight 3%, surplus is copper.
Above-mentioned leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe finished product obtains by the method identical with embodiment 1.
embodiment 4
Leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, composed of the following components: account for the manganese of compo pipe gross weight 0.05%, account for the tin of compo pipe gross weight 4%, account for the phosphorus of compo pipe gross weight 0.01%, account for the zinc of compo pipe gross weight 5%, surplus is copper.
Above-mentioned leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe makes by the following method:
Step 1: according to proportioning, Tong ﹑ manganese, phosphorus, tin, zinc are placed in main frequency furnace, are heated to 1200-1250 ℃ and dissolve rear insulation to 1150 ℃ completely;
Step 2: after the alloy liquid of fusing completely fully being stirred with graphite rod, cover in the above high purity flaky graphite powder to prevent its oxidation, thickness is about 15-20cm;
Step 3: be incubated after 1-1.5 hour, with German Spike direct-reading spectrometer, the sample taking out carried out to three composition checks in stove, to determine that its alloying constituent is within specialized range;
Step 4: be further incubated after 50-60 minute, be again warming up to 1250 ℃, and open main frequency furnace vibrating device, adopting horizontal continuous casting method to be cast as external diameter is 100mm, and internal diameter is 50mm, the blank alloy pipe that length is 550;
Step 5: with copper ingot milling machine, blank copper pipe is carried out to surface working, being processed as any surface finish external diameter is 105mm, and internal diameter is 55mm, the copper pipe that length is 550mm;
Step 6: adopt 1200 tons of single action extrusion machine extruding: alloy pig Heating temperature 200-250 ℃, extrusion temperature is 550 ℃, and extrusion speed is V=10mm/s, and after extruding, the external diameter of copper pipe is 90mm, and internal diameter is 60mm, length is 800mm;
Step 7: annealing, with box-annealing furnace, the copper pipe after pushing is carried out to anneal: annealing temperature is 300-350 ℃, and annealing time is 2-2.5 hour;
Step 8: surface treatment, with thin skin film, the copper pipe of extruding is carried out to peeling, making its external diameter is 85mm, tolerance is +/-0.2mm; Internal diameter is 60mm, and tolerance is +/-0.1mm; And by compo pipe aligning, be cut into the finished product of length 750mm;
Step 9: the finished product packing that step 8 is obtained warehouse-in.
embodiment 5
Leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, composed of the following components: account for the manganese of compo pipe gross weight 0.5%, account for the tin of compo pipe gross weight 6%, account for the phosphorus of compo pipe gross weight 0.5%, account for the zinc of compo pipe gross weight 7%, surplus is copper.
Above-mentioned leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe finished product obtains by the method identical with embodiment 4.
embodiment 6
Leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, composed of the following components: account for the manganese of compo pipe gross weight 0.25%, account for the tin of compo pipe gross weight 5%, account for the phosphorus of compo pipe gross weight 0.25%, account for the zinc of compo pipe gross weight 6%, surplus is copper.
Above-mentioned leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe finished product obtains by the method identical with embodiment 4.
embodiment 7
Leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, composed of the following components: account for the manganese of compo pipe gross weight 3%, account for the tin of compo pipe gross weight 7%, account for the phosphorus of compo pipe gross weight 0.05%, account for the zinc of compo pipe gross weight 4%, surplus is copper.
Above-mentioned leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe makes by the following method:
Step 1: according to proportioning, Tong ﹑ manganese, phosphorus, tin, zinc are placed in main frequency furnace, are heated to 1250-1300 ℃ and dissolve rear insulation to 1200 ℃ completely;
Step 2: after the alloy liquid of fusing completely fully being stirred with graphite rod, cover in the above high purity flaky graphite powder to prevent its oxidation, thickness is about 10-15cm;
Step 3: be incubated after 1.5-2 hour, with German Spike direct-reading spectrometer, the sample taking out carried out to three composition checks in stove, to determine that its alloying constituent is within specialized range;
Step 4: be further incubated after 50-60 minute, be again warming up to 1300 ℃, and open main frequency furnace vibrating device, adopting horizontal continuous casting method to be cast as external diameter is 80mm, and internal diameter is 50mm, the blank alloy pipe that length is 600mm;
Step 5: with copper ingot milling machine, blank copper pipe is carried out to surface working, being processed as any surface finish external diameter is 95mm, and internal diameter is 55mm, the copper pipe that length is 600mm;
Step 6: adopt 1200 tons of single action extrusion machine extruding: alloy pig Heating temperature 300-350 ℃, extrusion temperature is 450 ℃, and extrusion speed is V=15mm/s, and after extruding, the external diameter of copper pipe is 78mm, and internal diameter is 60mm, length is 800mm;
Step 7: annealing, with box-annealing furnace, the copper pipe after pushing is carried out to anneal: annealing temperature is 300-350 ℃, and annealing time is 2-2.5 hour;
Step 8: surface treatment, with thin skin film, the copper pipe of extruding is carried out to peeling, making its external diameter is 75mm, tolerance is +/-0.1mm; Internal diameter is 60mm, and tolerance is +/-0.15mm; And by compo pipe aligning, be cut into the finished product of length 750mm;
Step 9: the finished product packing that step 8 is obtained warehouse-in.
embodiment 8
Leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, composed of the following components: account for the manganese of compo pipe gross weight 5%, account for the tin of compo pipe gross weight 9%, account for the phosphorus of compo pipe gross weight 0.7%, account for the zinc of compo pipe gross weight 6%, surplus is copper.
Above-mentioned leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe finished product obtains by the method identical with embodiment 7.
embodiment 9
Leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, composed of the following components: account for the manganese of compo pipe gross weight 4%, account for the tin of compo pipe gross weight 8%, account for the phosphorus of compo pipe gross weight 0.35%, account for the zinc of compo pipe gross weight 5%, surplus is copper.
Above-mentioned leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe finished product obtains by the method identical with embodiment 7.
embodiment 10
Leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, composed of the following components: account for the manganese of compo pipe gross weight 5%, account for the tin of compo pipe gross weight 9%, account for the phosphorus of compo pipe gross weight 1%, account for the zinc of compo pipe gross weight 2%, surplus is copper.
Above-mentioned leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe makes by the following method:
Step 1: according to proportioning, Tong ﹑ manganese, phosphorus, tin, zinc are placed in main frequency furnace, are heated to 1230-1280 ℃ and dissolve rear insulation to 1150 ℃ completely;
Step 2: after the alloy liquid of fusing completely fully being stirred with graphite rod, cover in the above high purity flaky graphite powder to prevent its oxidation, thickness is about 15-18cm;
Step 3: be incubated after 1-1.5 hour, with German Spike direct-reading spectrometer, the sample taking out carried out to three composition checks in stove, to determine that its alloying constituent is within specialized range;
Step 4: be further incubated after 50-60 minute, be again warming up to 1250 ℃, and open main frequency furnace vibrating device, adopting horizontal continuous casting method to be cast as external diameter is 60mm, and internal diameter is 30mm, the blank alloy pipe that length is 1000mm;
Step 5: with copper ingot milling machine, blank copper pipe is carried out to surface working, being processed as any surface finish external diameter is 65mm, and internal diameter is 35mm, the copper pipe that length is 1000mm;
Step 6: adopt 1200 tons of single action extrusion machine extruding: alloy pig Heating temperature 300-350 ℃, extrusion temperature is 500 ℃, and extrusion speed is V=10mm/s, and after extruding, the external diameter of copper pipe is 52mm, and internal diameter is 39mm, length is 1100mm;
Step 7: annealing, with box-annealing furnace, the copper pipe after pushing is carried out to anneal: annealing temperature is 200-250 ℃, and annealing time is 1-1.5 hour;
Step 8: surface treatment, with thin skin film, the copper pipe of extruding is carried out to peeling, making its external diameter is 50mm, tolerance is +/-0.2mm; Internal diameter is 40mm, and tolerance is +/-0.1mm; And by compo pipe aligning, be cut into the finished product of length 1000mm;
Step 9: the finished product packing that step 8 is obtained warehouse-in.
embodiment 11
Leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, composed of the following components: account for the manganese of compo pipe gross weight 7%, account for the tin of compo pipe gross weight 11%, account for the phosphorus of compo pipe gross weight 3%, account for the zinc of compo pipe gross weight 4%, surplus is copper.
Above-mentioned leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe finished product obtains by the method identical with embodiment 10.
embodiment 12
Leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, composed of the following components: account for the manganese of compo pipe gross weight 6%, account for the tin of compo pipe gross weight 10%, account for the phosphorus of compo pipe gross weight 2%, account for the zinc of compo pipe gross weight 3%, surplus is copper.
Above-mentioned leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe finished product obtains by the method identical with embodiment 10.
embodiment 13
Leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, composed of the following components: account for the manganese of compo pipe gross weight 4%, account for the tin of compo pipe gross weight 10%, account for the phosphorus of compo pipe gross weight 0.5%, account for the zinc of compo pipe gross weight 8%, surplus is copper.
Above-mentioned leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe makes by the following method:
Step 1: according to proportioning, Tong ﹑ manganese, phosphorus, tin, zinc are placed in main frequency furnace, are heated to 1200-1250 ℃ and dissolve rear insulation to 1100 ℃ completely;
Step 2: after the alloy liquid of fusing completely fully being stirred with graphite rod, cover in the above high purity flaky graphite powder to prevent its oxidation, thickness is about 20-25cm;
Step 3: be incubated after 2-2.5 hour, with German Spike direct-reading spectrometer, the sample taking out carried out to three composition checks in stove, to determine that its alloying constituent is within specialized range;
Step 4: be further incubated after 50-60 minute, be again warming up to 1200 ℃, and open main frequency furnace vibrating device, adopting horizontal continuous casting method to be cast as external diameter is 60mm, internal diameter is 30mm, the blank alloy pipe that length is 1200mm, and wherein casting speed is 1mm/s;
Step 5: with copper ingot milling machine, blank copper pipe is carried out to surface working, being processed as any surface finish external diameter is 65mm, and internal diameter is 35mm, the copper pipe that length is 1200mm;
Step 6: adopt 1200 tons of single action extrusion machine extruding: alloy pig Heating temperature 300-350 ℃, extrusion temperature is 500 ℃, and extrusion speed is V=10mm/s, and after extruding, the external diameter of copper pipe is 57mm, and internal diameter is 39mm, length is 1250mm;
Step 7: annealing, with box-annealing furnace, the copper pipe after pushing is carried out to anneal: annealing temperature is 100-150 ℃, and annealing time is 1.5-2 hour;
Step 8: surface treatment, with thin skin film, the copper pipe of extruding is carried out to peeling, making its external diameter is 55mm, tolerance is +/-0.15mm; Internal diameter is 35mm, and tolerance is +/-0.1mm; And by compo pipe aligning, be cut into the finished product of length 1000mm;
Step 9: the finished product packing that step 8 is obtained warehouse-in.
embodiment 14
Leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, composed of the following components: account for the manganese of compo pipe gross weight 6%, account for the tin of compo pipe gross weight 11.5%, account for the phosphorus of compo pipe gross weight 1%, account for the zinc of compo pipe gross weight 9%, surplus is copper.
Above-mentioned leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe finished product obtains by the method identical with embodiment 13.
embodiment 15
Leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, composed of the following components: account for the manganese of compo pipe gross weight 5%, account for the tin of compo pipe gross weight 11%, account for the phosphorus of compo pipe gross weight 1%, account for the zinc of compo pipe gross weight 9%, surplus is copper.
Above-mentioned leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe finished product obtains by the method identical with embodiment 13.
comparative example
Leaded tin bronze alloys pipe is composed of the following components: account for the tin of alloy bar total amount 7%, account for the lead of alloy bar total amount 7%, account for the zinc of alloy bar total amount 3%, surplus is copper.
Leaded tin bronze alloys pipe adopts method well known in the art to obtain
A kind of leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe provided by the invention (embodiment 1-embodiment 15) and the mechanical property of leaded tin bronze alloys pipe (comparative example) are as shown in table 1.
Table 1
| ? | Unit elongation % | Yield strength (MPa) | Tensile strength (MPa) |
| Embodiment 1 | 10 | 185 | 262 |
| Embodiment 2 | 11 | 190 | 285 |
| Embodiment 3 | 11 | 175 | 320 |
| Embodiment 4 | 11.5 | 182 | 310 |
| Embodiment 5 | 10.5 | 190 | 330 |
| Embodiment 6 | 12 | 195 | 340 |
| Embodiment 7 | 10 | 175 | 365 |
| Embodiment 8 | 11.5 | 180 | 370 |
| Embodiment 9 | 11 | 185 | 310 |
| Embodiment 10 | 12 | 185 | 320 |
| Embodiment 11 | 11 | 175 | 310 |
| Embodiment 12 | 10.5 | 162 | 295 |
| Embodiment 13 | 11.5 | 150 | 290 |
| Embodiment 14 | 11 | 145 | 305 |
| Embodiment 15 | 11 | 142 | 300 |
| Comparative example | 10 | 138 | 248 |
The yield strength of a kind of leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe that above-described embodiment provides as can be seen from Table 1 and tensile strength are obviously greater than yield strength and the tensile strength of the leaded tin bronze alloys pipe of tradition that comparative example provides.
To sum up, above-described embodiment provides a kind of leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, it adopts metallic element manganese to replace lead element, and after manganese, zinc, tin, phosphorus, copper are melted at suitable temperature according to certain composition proportion, after horizontal casting, extruding and surface treatment, obtain can replacing the alloy pipe that contains lead element completely; It has not only possessed tradition and containing the performance of Redford alloy, has also met the requirement of environmental protection.
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 is equal to replacement, all should be encompassed in the middle of the protection domain of the claims in the present invention.
Claims (14)
1. a leadless environment-friendly high-strength abrasion-proof copper base alloy pipe, is characterized in that, following component, consists of: the manganese that accounts for compo pipe gross weight 0.05%, account for the tin of compo pipe gross weight 4%, account for the phosphorus of compo pipe gross weight 0.01%, account for the zinc of compo pipe gross weight 5%, surplus is copper.
2. a leadless environment-friendly high-strength abrasion-proof copper base alloy pipe, is characterized in that, following component, consists of: the manganese that accounts for compo pipe gross weight 0.5%, account for the tin of compo pipe gross weight 6%, account for the phosphorus of compo pipe gross weight 0.5%, account for the zinc of compo pipe gross weight 7%, surplus is copper.
3. a leadless environment-friendly high-strength abrasion-proof copper base alloy pipe, is characterized in that, following component, consists of: the manganese that accounts for compo pipe gross weight 0.25%, account for the tin of compo pipe gross weight 5%, account for the phosphorus of compo pipe gross weight 0.25%, account for the zinc of compo pipe gross weight 6%, surplus is copper.
4. a leadless environment-friendly high-strength abrasion-proof copper base alloy pipe, is characterized in that, following component, consists of: the manganese that accounts for compo pipe gross weight 3%, account for the tin of compo pipe gross weight 7%, account for the phosphorus of compo pipe gross weight 0.05%, account for the zinc of compo pipe gross weight 4%, surplus is copper.
5. a leadless environment-friendly high-strength abrasion-proof copper base alloy pipe, is characterized in that, following component, consists of: the manganese that accounts for compo pipe gross weight 5%, account for the tin of compo pipe gross weight 9%, account for the phosphorus of compo pipe gross weight 0.7%, account for the zinc of compo pipe gross weight 6%, surplus is copper.
6. a leadless environment-friendly high-strength abrasion-proof copper base alloy pipe, is characterized in that, following component, consists of: the manganese that accounts for compo pipe gross weight 4%, account for the tin of compo pipe gross weight 8%, account for the phosphorus of compo pipe gross weight 0.35%, account for the zinc of compo pipe gross weight 5%, surplus is copper.
7. a leadless environment-friendly high-strength abrasion-proof copper base alloy pipe, is characterized in that, following component, consists of: the manganese that accounts for compo pipe gross weight 5%, account for the tin of compo pipe gross weight 9%, account for the phosphorus of compo pipe gross weight 1%, account for the zinc of compo pipe gross weight 2%, surplus is copper.
8. a leadless environment-friendly high-strength abrasion-proof copper base alloy pipe, is characterized in that, following component, consists of: the manganese that accounts for compo pipe gross weight 7%, account for the tin of compo pipe gross weight 11%, account for the phosphorus of compo pipe gross weight 3%, account for the zinc of compo pipe gross weight 4%, surplus is copper.
9. a leadless environment-friendly high-strength abrasion-proof copper base alloy pipe, is characterized in that, following component, consists of: the manganese that accounts for compo pipe gross weight 6%, account for the tin of compo pipe gross weight 10%, account for the phosphorus of compo pipe gross weight 2%, account for the zinc of compo pipe gross weight 3%, surplus is copper.
10. a leadless environment-friendly high-strength abrasion-proof copper base alloy pipe, is characterized in that, following component, consists of: the manganese that accounts for compo pipe gross weight 4%, account for the tin of compo pipe gross weight 10%, account for the phosphorus of compo pipe gross weight 0.5%, account for the zinc of compo pipe gross weight 8%, surplus is copper.
11. 1 kinds of leadless environment-friendly high-strength abrasion-proof copper base alloy pipes, is characterized in that, consist of: the manganese that accounts for compo pipe gross weight 6% following component, account for the tin of compo pipe gross weight 11.5%, account for the phosphorus of compo pipe gross weight 1%, account for the zinc of compo pipe gross weight 9%, surplus is copper.
12. 1 kinds of leadless environment-friendly high-strength abrasion-proof copper base alloy pipes, is characterized in that, consist of: the manganese that accounts for compo pipe gross weight 5% following component, account for the tin of compo pipe gross weight 11%, account for the phosphorus of compo pipe gross weight 1%, account for the zinc of compo pipe gross weight 9%, surplus is copper.
The preparation method of 13. 1 kinds of leadless environment-friendly high-strength abrasion-proof copper base alloy pipes as described in arbitrary claim in claim 1-12, is characterized in that comprising the following steps:
1) according to proportioning, Tong ﹑ manganese, phosphorus, tin, zinc are placed in main frequency furnace, are heated to 1200-1350 ℃, after it dissolves completely, be incubated to 1100-1300 ℃;
2) after the alloy liquid of fusing completely fully being stirred with graphite rod, cover in the above high purity flaky graphite powder to prevent its oxidation, thickness is 10-25cm;
3) insulation, after 50 minutes-2.5 hours, is carried out three composition checks with German Spike direct-reading spectrometer to the sample taking out in stove, to determine that its alloying constituent is within specialized range;
4) be further incubated after 30-60 minute, be again warming up to 1200-1350 ℃, and open main frequency furnace vibrating device, adopting horizontal continuous casting method to be cast as external diameter is 60-100mm, and internal diameter is 30-50mm, the blank alloy pipe that length is 500-1200mm;
5) with copper ingot milling machine, blank copper pipe is carried out to surface working, be processed as any surface finish external diameter 65-105mm, internal diameter is 35-55mm, the copper pipe that length is 500-1200mm;
6) adopt 1200 tons of single action extrusion machine extruding: alloy pig Heating temperature is 200-350 ℃, and extrusion temperature is 450-550 ℃, and extrusion speed is V=10-15mm/s, and after extruding, the external diameter of copper pipe is 57-90mm, and internal diameter is 39-60mm, and length is 800-1250mm;
7) annealing, carries out anneal with box-annealing furnace to the copper pipe after pushing: annealing temperature is 200-350 ℃, and annealing time is 1-2.5 hour;
8) surface treatment, carries out peeling with thin skin film by the copper pipe of extruding, and making its external diameter is 50-88mm, and tolerance is ± 0.2mm; Internal diameter is 35-60mm, and tolerance is ± 0.1mm; And by compo pipe aligning, be cut into the finished product of length 750-1000mm;
9) by step 8) finished product packing that obtains warehouse-in.
The preparation method of 14. leadless environment-friendly high-strength abrasion-proof copper base alloy pipes according to claim 13, is characterized in that, copper is electrolytic copper.
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