CN103045899A - 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 the 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, be easy to weld and soldering and have good wear resistance in atmosphere and fresh water; It is mainly for the manufacture of bearing friction and the part that carries 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 because leaded, not only easily cause during hot-work hot-short, therefore it can only be processed under cold conditions; More not satisfied 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 has the performance of traditional leaded bronze alloy and satisfy environmental requirement.
In order to realize the foregoing invention purpose, the technical solution used in the present invention is as follows:
A kind of leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe is characterized in that, and is 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, formed by following component: 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, formed by following component: 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, formed by following component: 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, formed by following component: 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, formed by following component: 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.
Oceanographic engineering provided by the invention comprises the steps: with the preparation method of high-strength corrosion-resisting copper base alloy rod
1) according to proportioning Tong ﹑ manganese, phosphorus, tin, zinc are placed in the main frequency furnace, be heated to 1200-1350 ℃, after it dissolves fully, be incubated to 1100-1300 ℃;
After the alloy liquid that 2) will melt fully with graphite rod fully stirs, cover in the above high purity flaky graphite powder to prevent its oxidation, thickness is about 10-25cm;
3) insulation is carried out three composition checks with German Spike direct-reading spectrometer to the sample that takes out after 50 minutes-2.5 hours in stove, to determine that its alloying constituent is within specialized range;
4) further be incubated 30-60 minute after, again be warming up to 1200-1350 ℃, and open the main frequency furnace vibrating device, adopting horizontal continuous casting method to be cast as external diameter is 60-100mm, internal diameter is 30-50mm, length is the blank alloy pipe of 500-1200mm;
5) with the copper ingot milling machine blank copper pipe is carried out surface working, be processed as any surface finish external diameter 65-105mm, internal diameter is 35-55mm, and length is the copper pipe of 500-1200mm;
6) adopt 1200 tons of single action extrusion machine extruding: the alloy pig Heating temperature is 200-350 ℃, and extrusion temperature is 450-550 ℃, and extrusion speed is V=10-15mm/s, and the external diameter of copper pipe is 57-90mm after the extruding, and internal diameter is 39-60mm, and length is 800-1450mm;
7) annealing, with box-annealing furnace the copper pipe after pushing is carried out anneal: annealing temperature is 200-350 ℃, and annealing time is 1-2.5 hour;
8) surface treatment is carried out peeling with the thin skin film with the copper pipe of extruding, and making its external diameter is 50-88mm, and tolerance is+/-0.2mm; Internal diameter is 35-60mm, tolerance is+/-0.1mm; And with the compo pipe aligning, be cut into the finished product of length 750-1000mm;
9) finished product packing that step 8) is obtained and 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 with manganese, zinc, tin, phosphorus, copper according to certain composition proportion after fusing under the suitable temperature, after horizontal casting, extruding and surface treatment, obtain can replacing the alloy pipe that contains lead element fully; The performance that the present invention has not only possessed traditional leaded tin bronze alloys has also satisfied the requirement of environmental protection.
Embodiment
The invention will be further described below in conjunction with embodiment, 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 the main frequency furnace, be heated to 1230-1350 ℃ and dissolve rear insulation to 1300 ℃ fully;
Step 2: after the alloy liquid that will melt fully with graphite rod fully stirs, 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 that takes out carried out three composition checks in stove, to determine that its alloying constituent is within specialized range;
Step 4: after further being incubated 30-35 minute, again be warming up to 1350 ℃, and open the main frequency furnace vibrating device, adopting horizontal continuous casting method to be cast as external diameter is 100mm, and internal diameter is 50mm, and length is 500 blank alloy pipe;
Step 5: with the copper ingot milling machine blank copper pipe is carried out surface working, being processed as any surface finish external diameter is 105mm, and internal diameter is 55mm, and length is the copper pipe of 500mm;
Step 6: adopt 1200 tons of single action extrusion machine extruding: 300-350 ℃ of alloy pig Heating temperature, extrusion temperature are 550 ℃, and extrusion speed is V=10mm/s, and the external diameter of copper pipe is 90mm after the extruding, and internal diameter is 60mm, and length is 800mm;
Step 7: annealing, with box-annealing furnace the copper pipe after pushing is carried out anneal: annealing temperature is 300-350 ℃, and annealing time is 2-2.5 hour;
Step 8: surface treatment, with the thin skin film copper pipe of extruding is carried out peeling, making its external diameter is 88mm, tolerance is+/-0.2mm; Internal diameter is 60mm, tolerance is+/-0.1mm; And with the compo pipe aligning, be cut into the finished product of length 750mm;
Step 9: the finished product packing that step 8 obtains is also put in storage.
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 the main frequency furnace, be heated to 1200-1250 ℃ and dissolve rear insulation to 1150 ℃ fully;
Step 2: after the alloy liquid that will melt fully with graphite rod fully stirs, 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 that takes out carried out three composition checks in stove, to determine that its alloying constituent is within specialized range;
Step 4: after further being incubated 50-60 minute, again be warming up to 1250 ℃, and open the main frequency furnace vibrating device, adopting horizontal continuous casting method to be cast as external diameter is 100mm, and internal diameter is 50mm, and length is 550 blank alloy pipe;
Step 5: with the copper ingot milling machine blank copper pipe is carried out surface working, being processed as any surface finish external diameter is 105mm, and internal diameter is 55mm, and length is the copper pipe of 550mm;
Step 6: adopt 1200 tons of single action extrusion machine extruding: 200-250 ℃ of alloy pig Heating temperature, extrusion temperature are 550 ℃, and extrusion speed is V=10mm/s, and the external diameter of copper pipe is 90mm after the extruding, and internal diameter is 60mm, and length is 800mm;
Step 7: annealing, with box-annealing furnace the copper pipe after pushing is carried out anneal: annealing temperature is 300-350 ℃, and annealing time is 2-2.5 hour;
Step 8: surface treatment, with the thin skin film copper pipe of extruding is carried out peeling, making its external diameter is 85mm, tolerance is+/-0.2mm; Internal diameter is 60mm, tolerance is+/-0.1mm; And with the compo pipe aligning, be cut into the finished product of length 750mm;
Step 9: the finished product packing that step 8 obtains is also put in storage.
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 the main frequency furnace, be heated to 1250-1300 ℃ and dissolve rear insulation to 1200 ℃ fully;
Step 2: after the alloy liquid that will melt fully with graphite rod fully stirs, 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 that takes out carried out three composition checks in stove, to determine that its alloying constituent is within specialized range;
Step 4: after further being incubated 50-60 minute, again be warming up to 1300 ℃, and open the main frequency furnace vibrating device, adopting horizontal continuous casting method to be cast as external diameter is 80mm, and internal diameter is 50mm, and length is the blank alloy pipe of 600mm;
Step 5: with the copper ingot milling machine blank copper pipe is carried out surface working, being processed as any surface finish external diameter is 95mm, and internal diameter is 55mm, and length is the copper pipe of 600mm;
Step 6: adopt 1200 tons of single action extrusion machine extruding: 300-350 ℃ of alloy pig Heating temperature, extrusion temperature are 450 ℃, and extrusion speed is V=15mm/s, and the external diameter of copper pipe is 78mm after the extruding, and internal diameter is 60mm, and length is 800mm;
Step 7: annealing, with box-annealing furnace the copper pipe after pushing is carried out anneal: annealing temperature is 300-350 ℃, and annealing time is 2-2.5 hour;
Step 8: surface treatment, with the thin skin film copper pipe of extruding is carried out peeling, making its external diameter is 75mm, tolerance is+/-0.1mm; Internal diameter is 60mm, tolerance is+/-0.15mm; And with the compo pipe aligning, be cut into the finished product of length 750mm;
Step 9: the finished product packing that step 8 obtains is also put in storage.
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 the main frequency furnace, be heated to 1230-1280 ℃ and dissolve rear insulation to 1150 ℃ fully;
Step 2: after the alloy liquid that will melt fully with graphite rod fully stirs, 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 that takes out carried out three composition checks in stove, to determine that its alloying constituent is within specialized range;
Step 4: after further being incubated 50-60 minute, again be warming up to 1250 ℃, and open the main frequency furnace vibrating device, adopting horizontal continuous casting method to be cast as external diameter is 60mm, and internal diameter is 30mm, and length is the blank alloy pipe of 1000mm;
Step 5: with the copper ingot milling machine blank copper pipe is carried out surface working, being processed as any surface finish external diameter is 65mm, and internal diameter is 35mm, and length is the copper pipe of 1000mm;
Step 6: adopt 1200 tons of single action extrusion machine extruding: 300-350 ℃ of alloy pig Heating temperature, extrusion temperature are 500 ℃, and extrusion speed is V=10mm/s, and the external diameter of copper pipe is 52mm after the extruding, and internal diameter is 39mm, and length is 1100mm;
Step 7: annealing, with box-annealing furnace the copper pipe after pushing is carried out anneal: annealing temperature is 200-250 ℃, and annealing time is 1-1.5 hour;
Step 8: surface treatment, with the thin skin film copper pipe of extruding is carried out peeling, making its external diameter is 50mm, tolerance is+/-0.2mm; Internal diameter is 40mm, tolerance is+/-0.1mm; And with the compo pipe aligning, be cut into the finished product of length 1000mm;
Step 9: the finished product packing that step 8 obtains is also put in storage.
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 the main frequency furnace, be heated to 1200-1250 ℃ and dissolve rear insulation to 1100 ℃ fully;
Step 2: after the alloy liquid that will melt fully with graphite rod fully stirs, 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 that takes out carried out three composition checks in stove, to determine that its alloying constituent is within specialized range;
Step 4: after further being incubated 50-60 minute, again be warming up to 1200 ℃, and open the main frequency furnace vibrating device, adopting horizontal continuous casting method to be cast as external diameter is 60mm, internal diameter is 30mm, and length is the blank alloy pipe of 1200mm, and wherein casting speed is 1mm/s;
Step 5: with the copper ingot milling machine blank copper pipe is carried out surface working, being processed as any surface finish external diameter is 65mm, and internal diameter is 35mm, and length is the copper pipe of 1200mm;
Step 6: adopt 1200 tons of single action extrusion machine extruding: 300-350 ℃ of alloy pig Heating temperature, extrusion temperature are 500 ℃, and extrusion speed is V=10mm/s, and the external diameter of copper pipe is 57mm after the extruding, and internal diameter is 39mm, and length is 1250mm;
Step 7: annealing, with box-annealing furnace the copper pipe after pushing is carried out anneal: annealing temperature is 100-150 ℃, and annealing time is 1.5-2 hour;
Step 8: surface treatment, with the thin skin film copper pipe of extruding is carried out peeling, making its external diameter is 55mm, tolerance is+/-0.15mm; Internal diameter is 35mm, tolerance is+/-0.1mm; And with the compo pipe aligning, be cut into the finished product of length 1000mm;
Step 9: the finished product packing that step 8 obtains is also put in storage.
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 |
As can be seen from Table 1 yield strength and the tensile strength of the traditional leaded tin bronze alloys pipe that obviously provides greater than comparative example of the yield strength of a kind of leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe of providing of above-described embodiment and tensile strength.
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 with manganese, zinc, tin, phosphorus, copper according to certain composition proportion after fusing under the suitable temperature, after horizontal casting, extruding and surface treatment, obtain can replacing the alloy pipe that contains lead element fully; It has not only possessed the requirement that traditional performance that contains Redford alloy has also satisfied environmental protection.
The above is preferred embodiment of the present invention only, is not to limit practical range of the present invention; If do not break away from the spirit and scope of the present invention, the present invention is made amendment or is equal to replacement, all should be encompassed in the middle of the protection domain of claim of the present invention.
Claims (9)
1. leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe, it 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.
2. leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe according to claim 1, it is characterized in that, formed by following component: 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.
3. leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe according to claim 1, it is characterized in that, formed by following component: 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.
4. leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe according to claim 1, it is characterized in that, formed by following component: 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.
5. leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe according to claim 1, it is characterized in that, formed by following component: the manganese that accounts for 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.
6. leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe according to claim 1, it is characterized in that, formed by following component: 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.
7. described leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe is characterized in that according to claim 1-6, and copper is electrolytic copper.
8. preparation method such as the described leadless environment-friendly high-strength abrasion-proof of claim 1-6 copper base novel compo pipe is characterized in that may further comprise the steps:
1) according to proportioning Tong ﹑ manganese, phosphorus, tin, zinc are placed in the main frequency furnace, be heated to 1200-1350 ℃, after it dissolves fully, be incubated to 1100-1300 ℃;
After the alloy liquid that 2) will melt fully with graphite rod fully stirs, cover in the above high purity flaky graphite powder to prevent its oxidation, thickness is about 10-25cm;
3) insulation is carried out three composition checks with German Spike direct-reading spectrometer to the sample that takes out after 50 minutes-2.5 hours in stove, to determine that its alloying constituent is within specialized range;
4) further be incubated 30-60 minute after, again be warming up to 1200-1350 ℃, and open the main frequency furnace vibrating device, adopting horizontal continuous casting method to be cast as external diameter is 60-100mm, internal diameter is 30-50mm, length is the blank alloy pipe of 500-1200mm;
5) with the copper ingot milling machine blank copper pipe is carried out surface working, be processed as any surface finish external diameter 65-105mm, internal diameter is 35-55mm, and length is the copper pipe of 500-1200mm;
6) adopt 1200 tons of single action extrusion machine extruding: the alloy pig Heating temperature is 200-350 ℃, and extrusion temperature is 450-550 ℃, and extrusion speed is V=10-15mm/s, and the external diameter of copper pipe is 57-90mm after the extruding, and internal diameter is 39-60mm, and length is 800-1250mm;
7) annealing, with box-annealing furnace the copper pipe after pushing is carried out anneal: annealing temperature is 200-350 ℃, and annealing time is 1-2.5 hour;
8) surface treatment is carried out peeling with the thin skin film with the copper pipe of extruding, and making its external diameter is 50-88mm, and tolerance is+/-0.2mm; Internal diameter is 35-60mm, tolerance is+/-0.1mm; And with the compo pipe aligning, be cut into the finished product of length 750-1000mm;
9) finished product packing that step 8) is obtained and warehouse-in.
9. the preparation method of leadless environment-friendly high-strength abrasion-proof copper base novel compo pipe according to claim 8 is characterized in that, copper is electrolytic copper.
Priority Applications (1)
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| US11473172B2 (en) | 2017-03-24 | 2022-10-18 | Ihi Corporation | Wear-resistant copper-zinc alloy and mechanical device using same |
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| CN103045899B (en) | 2014-12-17 |
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