CN102787254B - Novel environment-friendly bismuth-tin-manganese alloy rod and preparation method thereof - Google Patents
Novel environment-friendly bismuth-tin-manganese alloy rod and preparation method thereof Download PDFInfo
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- CN102787254B CN102787254B CN201210308341.6A CN201210308341A CN102787254B CN 102787254 B CN102787254 B CN 102787254B CN 201210308341 A CN201210308341 A CN 201210308341A CN 102787254 B CN102787254 B CN 102787254B
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Abstract
The invention relates to a novel environment-friendly bismuth-tin-manganese alloy rod which comprises the following components: 0.5-1.5% of bismuth, 4-6% of tin, 2-4% of manganese and the balance of copper. The invention also relates to a preparation method of the novel environment-friendly bismuth-tin-manganese alloy rod. The bismuth replaces the traditional lead, thus the bismuth-tin-manganese alloy rod retains the original mechanical properties of the alloy material and is environment-friendly. In addition, the content of the bismuth is reduced to 0.5-1.5% compared with the content of the traditional lead of 4-6%, so that the cost of the bismuth-tin-manganese alloy rod is reduced. Moreover, the manganese replaces the traditional zinc, so that the harness of the alloy can be increased to 110-120HBS from the original 75-95HBS, and the wear resistance is improved.
Description
Technical field
The present invention relates to alloy bar material field, be specifically related to a kind of novel environment friendly bismuth tin manganese alloy rod and preparation method thereof.
Background technology
At present, domestic and international market is in great demand to the alloy of wear-resisting high rigidity, mainly uses two kinds of alloy materials of Tin-lead bronze and tin-phosphor bronze.But along with the environmental requirement to product on world market is more and more higher, leaded bronze cannot meet its requirement; The price of tin-phosphor bronze is higher again, has increased the use cost of product.
Summary of the invention
The object of the present invention is to provide a kind of novel environment friendly bismuth tin manganese alloy rod and preparation method thereof.
In order to realize foregoing invention object, the technical solution used in the present invention is as follows:
A kind of novel environment friendly bismuth tin manganese alloy rod, composed of the following components: account for the bismuth of alloy bar gross weight 0.5-1.5%, account for the tin of alloy bar gross weight 4-6%, account for the manganese of alloy bar gross weight 2-4%, surplus is copper.
In one embodiment of this invention, novel environment friendly bismuth tin manganese alloy rod can be composed of the following components: account for the bismuth of alloy bar gross weight 1%, account for the tin of alloy bar gross weight 5%, account for the manganese of alloy bar gross weight 3%, surplus is copper.
In another embodiment of the present invention, novel environment friendly bismuth tin manganese alloy rod can be composed of the following components: account for the bismuth of alloy bar gross weight 0.5%, account for the tin of alloy bar gross weight 6%, account for the manganese of alloy bar gross weight 2%, surplus is copper.
In an embodiment more of the present invention, novel environment friendly bismuth tin manganese alloy rod can be composed of the following components: account for the bismuth of alloy bar gross weight 1.5%, account for the tin of alloy bar gross weight 4%, account for the manganese of alloy bar gross weight 4%, surplus is copper.
In an embodiment of the present invention, copper can be electrolytic copper.
A preparation method for novel environment friendly bismuth tin manganese alloy rod, comprises the following steps:
1) according to proportioning, copper, bismuth, tin, manganese are placed in main frequency furnace, are heated to 1360 ℃-1400 ℃ and after fusing, are incubated completely;
2) after the liquid alloy of fusing completely is fully stirred, surface coverage Graphite Powder 99 is to prevent its oxidation;
3) continue insulation after 35-40 minute, be again warming up to 1400 ℃, and open the vibrating device of main frequency furnace, adopt horizontal continuous casting method to be cast as solid alloy bar;
4) by step 3) one end of the alloy bar that obtains makes drawing section;
5) by step 4) alloy bar that obtains carries out peeling;
6) by step 5) alloy bar that obtains is stretched as trimmed size.
In an embodiment of the present invention, copper can be electrolytic copper.
In an embodiment of the present invention, step 2) in, can stir the liquid alloy of fusing completely with special graphite instrument.
In an embodiment of the present invention, step 2) in Graphite Powder 99 can be high purity flaky graphite powder, cladding thickness can be 25-30mm.
In an embodiment of the present invention, step 5) in, can adopt high precision wolfram steel thin skin mould alloy rod to carry out peeling.
In novel environment friendly bismuth tin manganese alloy rod of the present invention, replace traditional lead element with bismuth element, in having guaranteed the original mechanical property of this alloy material, there is again environmental-protecting performance, and due to the content of bismuth element is reduced to 0.5-1.5% from the lead element content of traditional 4-6%, its cost is decreased; Replace traditional zinc element with manganese element, can greatly put forward heavy alloyed hardness, alloy rigidity is promoted to 110-120HBS by original 75-95HBS, and improves its wear resistance.
Embodiment
Below in conjunction with embodiment, the invention will be further described, but and unrestricted range of application of the present invention.
embodiment 1
Novel environment friendly bismuth tin manganese alloy rod, composed of the following components: account for the bismuth of alloy bar gross weight 1%, account for the tin of alloy bar gross weight 5%, account for the manganese of alloy bar gross weight 3%, surplus is copper.
Above-mentioned novel environment friendly bismuth tin manganese alloy rod makes by the following method:
Step 1: according to proportioning, copper, bismuth, tin, manganese are placed in main frequency furnace, are heated to 1360 ℃-1400 ℃ and are incubated to 1380 ℃ after fusing completely;
Step 2: after the alloy liquid of fusing completely fully being stirred with special graphite instrument, cover in the above high purity flaky graphite powder to prevent its oxidation, thickness is about 25-30mm;
After step 3: soaking time 35-40 minute, be again warming up to 1400 ℃, and open the vibrating device of main frequency furnace, vibrational frequency is 1 time/second.Adopting horizontal continuous casting method to be cast as external diameter is 53mm, the solid alloy bar material that length is 2500mm;
Step 4: with a system machine, length being made in one end of alloy bar is 150mm, the drawing section that diameter is 45mm;
Step 5: with high precision wolfram steel thin skin mould by alloy bar peeling once to 51.5mm;
Step 6: alloy bar is finally stretched as to 50mm with finishing die, tolerance is +/-0.05mm, and length scaling is 2000mm, and tolerance is+1/-0mm;
Step 7: pack and put in storage.
embodiment 2
Novel environment friendly bismuth tin manganese alloy rod, composed of the following components: account for the bismuth of alloy bar gross weight 0.5%, account for the tin of alloy bar gross weight 6%, account for the manganese of alloy bar gross weight 2%, surplus is electrolytic copper.
Above-mentioned novel environment friendly bismuth tin manganese alloy rod finished product obtains by the method identical with embodiment 1.
embodiment 3
Novel environment friendly bismuth tin manganese alloy rod, composed of the following components: account for the bismuth of alloy bar gross weight 1.5%, account for the tin of alloy bar gross weight 4%, account for the manganese of alloy bar gross weight 4%, surplus is copper.
Above-mentioned novel environment friendly bismuth tin manganese alloy rod finished product obtains by the method identical with embodiment 1.
comparative example 1
Traditional copper alloy bar is composed of the following components: account for the copper of alloy bar gross weight 99.91%, surplus is impurity.
comparative example 2
Traditional copper alloy bar is composed of the following components: account for the copper of alloy bar gross weight 64-66%, surplus is zinc.
Above-mentioned traditional copper alloy bar adopts method well known in the art to obtain.
comparative example 3
Tin-lead bronze alloy bar is composed of the following components: account for the lead of alloy bar total amount 4-6%, account for the zinc of alloy bar gross weight 4-6%, account for the tin of alloy bar gross weight 4-6%, surplus is copper.
Above-mentioned Tin-lead bronze alloy bar adopts method well known in the art to obtain.
comparative example 4
Sn-P-Cu alloy rod is composed of the following components: account for the tin of alloy bar total amount 5-7%, account for the phosphorus of alloy bar gross weight 0.03-0.25%, surplus is copper.
Above-mentioned Sn-P-Cu alloy rod adopts method well known in the art to obtain.
The mechanical property of novel environment friendly bismuth tin manganese alloy rod of the present invention and traditional copper alloy bar, Tin-lead bronze alloy bar and Sn-P-Cu alloy rod 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 is equal to replacement, all should be encompassed in the middle of the protection domain of the claims in the present invention.
Claims (9)
1. an environmental protection bismuth tin manganese alloy rod, is characterized in that, composed of the following components: account for the bismuth of alloy bar gross weight 1%, account for the tin of alloy bar gross weight 5%, account for the manganese of alloy bar gross weight 3%, surplus is copper.
2. an environmental protection bismuth tin manganese alloy rod, is characterized in that, composed of the following components: account for the bismuth of alloy bar gross weight 0.5%, account for the tin of alloy bar gross weight 6%, account for the manganese of alloy bar gross weight 2%, surplus is copper.
3. an environmental protection bismuth tin manganese alloy rod, is characterized in that, composed of the following components: account for the bismuth of alloy bar gross weight 1.5%, account for the tin of alloy bar gross weight 4%, account for the manganese of alloy bar gross weight 4%, surplus is copper.
4. according to the environmental protection bismuth tin manganese alloy rod described in any one in claims 1 to 3, it is characterized in that, copper is electrolytic copper.
5. a preparation method for environmental protection bismuth tin manganese alloy rod as claimed any one in claims 1 to 3, is characterized in that, comprises the following steps:
1) according to proportioning, copper, bismuth, tin, manganese are placed in main frequency furnace, are heated to 1360 ℃-1400 ℃ and after fusing, are incubated completely;
2) after the liquid alloy of fusing completely is fully stirred, surface coverage Graphite Powder 99 is to prevent its oxidation;
3) continue insulation after 35-40 minute, be again warming up to 1400 ℃, and open the vibrating device of main frequency furnace, adopt horizontal continuous casting method to be cast as solid alloy bar;
4) by step 3) one end of the alloy bar that obtains makes drawing section;
5) by step 4) alloy bar that obtains carries out peeling;
6) by step 5) alloy bar that obtains is stretched as trimmed size.
6. the preparation method of environmental protection bismuth tin manganese alloy rod according to claim 5, is characterized in that, copper is electrolytic copper.
7. the preparation method of environmental protection bismuth tin manganese alloy rod according to claim 5, is characterized in that step 2) in, with special graphite instrument to completely fusing liquid alloy stir.
8. the preparation method of environmental protection bismuth tin manganese alloy rod according to claim 7, is characterized in that step 2) in Graphite Powder 99 be high purity flaky graphite powder, cladding thickness is 25-30mm.
9. the preparation method of environmental protection bismuth tin manganese alloy rod according to claim 8, is characterized in that step 5) in, adopt high precision wolfram steel thin skin mould alloy rod to carry out peeling.
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| CN201210308341.6A CN102787254B (en) | 2012-08-28 | 2012-08-28 | Novel environment-friendly bismuth-tin-manganese alloy rod and preparation method thereof |
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| CN106191516A (en) * | 2016-08-09 | 2016-12-07 | 苏州列治埃盟新材料技术转移有限公司 | A kind of Cu-base composites for component of machine and preparation method thereof |
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| CN102634689A (en) * | 2012-04-25 | 2012-08-15 | 苏州金仓合金新材料有限公司 | Rare earth copper alloy rod for petrochemical engineering equipment and preparation method of rare earth copper alloy rod |
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