CN103757481A - Free-cutting bismuth-nickel copper alloy material and preparation method thereof - Google Patents
Free-cutting bismuth-nickel copper alloy material and preparation method thereof Download PDFInfo
- Publication number
- CN103757481A CN103757481A CN201410011604.6A CN201410011604A CN103757481A CN 103757481 A CN103757481 A CN 103757481A CN 201410011604 A CN201410011604 A CN 201410011604A CN 103757481 A CN103757481 A CN 103757481A
- Authority
- CN
- China
- Prior art keywords
- speed
- hour
- insulation
- copper
- bismuth
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Abstract
The invention relates to a free-cutting bismuth-nickel copper alloy material which contains the following chemical components in percentage by mass: 2.2-2.4% of manganese, 0.3-0.4% of silicon, 8.5-10.2% of nickel, 0.08-0.12% of Hf, 0.35-0.40% of Bi and the balance of copper. The bismuth, silicon, Hf, manganese and other elements are added to enhance the wear resistance and toughness, obviously improve the cutting characteristic, save the cutting tool and cutting time, enhance the corrosion resistance and avoid lead pollution; and by reasonably controlling the after-casting treatment temperature and using waste copper as the raw material, the core hardness is basically consistent with the surface hardness, and the alloy quality is uniform. When the refining agent is used for casting production, the porosity in the casting is lowered by 1-2 degrees, the oxide inclusion content is at level 2 or so, and the yield is obviously enhanced.
Description
Technical field
The present invention relates to the manufacture field of metal alloy compositions, relate in particular to a kind of easy cutting bismuth corronel material and preparation method thereof.
Background technology
Copper is because of its good electroconductibility, plasticity-, and erosion resistance, applies very extensive.In copper alloy, add Lv ﹑ Nie ﹑ Meng ﹑ Xi ﹑ Gui ﹑ lead and other elements, can improve the performance of copper, for different places.Still there are some problems in the existing copper alloy of China at present, and as alloy contains a large amount of impurity elements, high temperature fatigue is poor, hot strength is low; Hardness is low, wears no resistance, frictional coefficient is large, and work-ing life is short; Poorly conductive, waste electric energy; Bending machining performance is poor, easily fractures; Quality weight, constructional difficulties; Can't meet market demands.
Summary of the invention
The object of the present invention is to provide a kind of easy cutting bismuth corronel material and preparation method thereof, this Cu alloy material has that wear resistance is good, good toughness, excellent cutting performance, corrosion resistant advantage.
Technical scheme of the present invention is as follows:
An easy cutting bismuth corronel material, is characterized in that: chemical element composition and mass percent thereof that it contains are: manganese 2.2-2.4, silicon 0.3-0.4, nickel 8.5-10.2, Hf0.08-0.12, Bi0.35-0.40, surplus are copper.
The production method of described easy cutting bismuth corronel material, is characterized in that:
(1), preparing fine copper and copper scrap originates as copper matrix in 1:0.4-0.6 ratio, fine copper is added to drop in stove and melt, carry out removing impurities matter, deoxidation, employing refining agent initial refining, add alloying constituent and carry out alloying, then add copper scrap fusing, add refining agent secondary refining, detection and adjust chemical element component content to qualified, casting, casting postheat treatment etc.;
(2) in alloying process, to the lot sequence that drops into alloying element in stove, be: (1) nickel; (2) silicon, bismuth; (3) other remaining components; The timed interval that each batch drops into element is 21-24 minute, after feeding intake, stirs.
Described casting postheat treatment is: first by room temperature, with 210-220 ℃/h of speed, be warming up to 290-310 ℃, and insulation 50-60 minute, then with 210-220 ℃/h of speed, be warming up to 580-590 ℃, insulation 1-2 hour; With 270-280 ℃/h of speed, be cooled to 340-350 ℃ again, insulation 30-50 minute, then with 240-250 ℃/h of speed, be cooled to 80-100 ℃, insulation 1-2 hour; With 210-220 ℃/h of speed, be warming up to 360-380 ℃ again, insulation 1-2 hour; With 240-250 ℃/h of speed, be cooled to 80-100 ℃ again, insulation 1-2 hour; With 190-200 ℃/h of speed, be warming up to 330-340 ℃ again, insulation 2-3 hour, takes out air cooling and get final product.
Described refining agent is made by the raw material of following weight part: silicon-dioxide 35-40, aluminium sesquioxide 10-15, attapulgite 5-10, vermiculite 5-8, trees ashes 1-2, sepiolite powder 3-4, vermiculite power 1-2, montmorillonite powder 2-3, lapis amiridis 1-2, jade powder 3-4, montmorillonite 1-2, Calcium Fluoride (Fluorspan) 2-3, sodium carbonate 3-4, Sodium Silicofluoride 4-5; Its preparation method is that silicon-dioxide, aluminium sesquioxide, attapulgite, vermiculite, trees ashes, sepiolite powder, vermiculite power, montmorillonite powder, lapis amiridis, jade powder, montmorillonite are mixed, be heated to 2600-3000 ℃, stir 1-2 hour, after cooling, be added in the hydrochloric acid soln of 10-15%, soak 1-2 hour, filter, filter residue is cleaned with clear water repeatedly, dries, and merges and mixes and get final product with other composition.
Beneficial effect of the present invention
Alloy of the present invention, by adding the elements such as bismuth, silicon, Hf, manganese, has not only improved wear resistance, the toughness of alloy, and has significantly improved cutting ability, has saved cutting tool and cutting time, has also improved corrosion resistance nature, and without Lead contamination; By reasonable control casting post-processing temperature, use copper scrap as raw material, make core hardness and surface hardness basically identical, alloy quality homogeneous.Refining agent of the present invention, for Foundry Production, can make the degree of porosity in foundry goods reduce 1-2 degree, and oxide inclusion, 2 grades of left and right, obviously improves yield rate.
Embodiment
An easy cutting bismuth corronel material, chemical element composition and mass percent thereof that it contains are: manganese 2.2-2.4, silicon 0.3-0.4, nickel 8.5-10.2, Hf0.08-0.12, Bi0.35-0.40, surplus are copper.
The production method of described easy cutting bismuth corronel material is:
(1), preparing fine copper and copper scrap originates as copper matrix in 1:0.5 ratio, fine copper is added to drop in stove and melt, carry out removing impurities matter, deoxidation, employing refining agent initial refining, add alloying constituent and carry out alloying, then add copper scrap fusing, add refining agent secondary refining, detection and adjust chemical element component content to qualified, casting, casting postheat treatment etc.;
(2) in alloying process, to the lot sequence that drops into alloying element in stove, be: (1) nickel; (2) silicon, bismuth; (3) other remaining components; The timed interval that each batch drops into element is 22 minutes, after feeding intake, stirs.
Described casting postheat treatment is: first by room temperature, with 215 ℃/h of speed, be warming up to 295 ℃, be incubated 55 minutes, then be warming up to 585 ℃ with 215 ℃/h of speed, be incubated 1.5 hours; With 275 ℃/h of speed, be cooled to 345 ℃ again, be incubated 40 minutes, then be cooled to 90 ℃ with 245 ℃/h of speed, be incubated 1.5 hours; With 215 ℃/h of speed, be warming up to 370 ℃ again, be incubated 1.5 hours; With 245 ℃/h of speed, be cooled to 90 ℃ again, be incubated 1.5 hours; With 195 ℃/h of speed, be warming up to 335 ℃ again, be incubated 2.5 hours, take out air cooling and get final product.
Described refining agent by following weight part (kilogram) raw material make: silicon-dioxide 35, aluminium sesquioxide 10, attapulgite 5, vermiculite 5, trees ashes 2, sepiolite powder 3, vermiculite power 1, montmorillonite powder 2, lapis amiridis 1, jade powder 3, montmorillonite 1, Calcium Fluoride (Fluorspan) 3, sodium carbonate 4, Sodium Silicofluoride 5; Its preparation method is that silicon-dioxide, aluminium sesquioxide, attapulgite, vermiculite, trees ashes, sepiolite powder, vermiculite power, montmorillonite powder, lapis amiridis, jade powder, montmorillonite are mixed, be heated to 2600-3000 ℃, stir 1-2 hour, after cooling, be added in the hydrochloric acid soln of 10-15%, soak 1-2 hour, filter, filter residue is cleaned with clear water repeatedly, dries, and merges and mixes and get final product with other composition.
The easy cutting bismuth corronel of the present embodiment material, tensile strength б b is 534Mpa, yield strength 503MPa, hardness value HB is 123, electric conductivity %IACS61,595 ℃ of softening temperatures, 20 ℃ of unit elongation 14.9%.
Claims (4)
1. an easy cutting bismuth corronel material, is characterized in that: chemical element composition and mass percent thereof that it contains are: manganese 2.2-2.4, silicon 0.3-0.4, nickel 8.5-10.2, Hf0.08-0.12, Bi0.35-0.40, surplus are copper.
2. the production method of easy cutting bismuth corronel material according to claim 1, is characterized in that:
(1), preparing fine copper and copper scrap originates as copper matrix in 1:0.4-0.6 ratio, fine copper is added to drop in stove and melt, carry out removing impurities matter, deoxidation, employing refining agent initial refining, add alloying constituent and carry out alloying, then add copper scrap fusing, add refining agent secondary refining, detection and adjust chemical element component content to qualified, casting, casting postheat treatment etc.;
(2) in alloying process, to the lot sequence that drops into alloying element in stove, be: (1) nickel; (2) silicon, bismuth; (3) other remaining components; The timed interval that each batch drops into element is 21-24 minute, after feeding intake, stirs.
3. the production method of easy cutting bismuth corronel material according to claim 2, it is characterized in that: described casting postheat treatment is: first by room temperature, with 210-220 ℃/h of speed, be warming up to 290-310 ℃, insulation 50-60 minute, with 210-220 ℃/h of speed, be warming up to 580-590 ℃ again, insulation 1-2 hour; With 270-280 ℃/h of speed, be cooled to 340-350 ℃ again, insulation 30-50 minute, then with 240-250 ℃/h of speed, be cooled to 80-100 ℃, insulation 1-2 hour; With 210-220 ℃/h of speed, be warming up to 360-380 ℃ again, insulation 1-2 hour; With 240-250 ℃/h of speed, be cooled to 80-100 ℃ again, insulation 1-2 hour; With 190-200 ℃/h of speed, be warming up to 330-340 ℃ again, insulation 2-3 hour, takes out air cooling and get final product.
4. the production method of easy cutting bismuth corronel material according to claim 2, is characterized in that: described refining agent is made by the raw material of following weight part: silicon-dioxide 35-40, aluminium sesquioxide 10-15, attapulgite 5-10, vermiculite 5-8, trees ashes 1-2, sepiolite powder 3-4, vermiculite power 1-2, montmorillonite powder 2-3, lapis amiridis 1-2, jade powder 3-4, montmorillonite 1-2, Calcium Fluoride (Fluorspan) 2-3, sodium carbonate 3-4, Sodium Silicofluoride 4-5; Its preparation method is that silicon-dioxide, aluminium sesquioxide, attapulgite, vermiculite, trees ashes, sepiolite powder, vermiculite power, montmorillonite powder, lapis amiridis, jade powder, montmorillonite are mixed, be heated to 2600-3000 ℃, stir 1-2 hour, after cooling, be added in the hydrochloric acid soln of 10-15%, soak 1-2 hour, filter, filter residue is cleaned with clear water repeatedly, dries, and merges and mixes and get final product with other composition.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410011604.6A CN103757481A (en) | 2014-01-10 | 2014-01-10 | Free-cutting bismuth-nickel copper alloy material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410011604.6A CN103757481A (en) | 2014-01-10 | 2014-01-10 | Free-cutting bismuth-nickel copper alloy material and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103757481A true CN103757481A (en) | 2014-04-30 |
Family
ID=50524795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410011604.6A Pending CN103757481A (en) | 2014-01-10 | 2014-01-10 | Free-cutting bismuth-nickel copper alloy material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103757481A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032182A (en) * | 2014-05-12 | 2014-09-10 | 蚌埠市宏威滤清器有限公司 | High-electric-conductivity free-cutting cupronickel alloy material and preparation method thereof |
| CN104032180A (en) * | 2014-05-12 | 2014-09-10 | 蚌埠市宏威滤清器有限公司 | Copper-alloy contact-terminal material for AC contactor and preparation method thereof |
| CN104032161A (en) * | 2014-05-12 | 2014-09-10 | 蚌埠市宏威滤清器有限公司 | Copper alloy material for contact terminal of AC contactor and preparation method thereof |
| CN104032181A (en) * | 2014-05-12 | 2014-09-10 | 蚌埠市宏威滤清器有限公司 | High-strength high-conductivity free-cutting copper alloy material and preparation method thereof |
| CN104032164A (en) * | 2014-05-12 | 2014-09-10 | 蚌埠市宏威滤清器有限公司 | Leadless free-cutting silicon brass alloy material and preparation method thereof |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1930314A (en) * | 2004-03-12 | 2007-03-14 | 住友金属工业株式会社 | Copper alloy and process for producing the same |
| CN102162046A (en) * | 2010-12-29 | 2011-08-24 | 中南大学 | Copper-nickel system precision resistor alloy foil and preparation method thereof |
| CN103397222A (en) * | 2013-07-01 | 2013-11-20 | 安徽三联泵业股份有限公司 | Stainless steel drawing mould copper alloy and preparation method thereof |
-
2014
- 2014-01-10 CN CN201410011604.6A patent/CN103757481A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1930314A (en) * | 2004-03-12 | 2007-03-14 | 住友金属工业株式会社 | Copper alloy and process for producing the same |
| CN102162046A (en) * | 2010-12-29 | 2011-08-24 | 中南大学 | Copper-nickel system precision resistor alloy foil and preparation method thereof |
| CN103397222A (en) * | 2013-07-01 | 2013-11-20 | 安徽三联泵业股份有限公司 | Stainless steel drawing mould copper alloy and preparation method thereof |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104032182A (en) * | 2014-05-12 | 2014-09-10 | 蚌埠市宏威滤清器有限公司 | High-electric-conductivity free-cutting cupronickel alloy material and preparation method thereof |
| CN104032180A (en) * | 2014-05-12 | 2014-09-10 | 蚌埠市宏威滤清器有限公司 | Copper-alloy contact-terminal material for AC contactor and preparation method thereof |
| CN104032161A (en) * | 2014-05-12 | 2014-09-10 | 蚌埠市宏威滤清器有限公司 | Copper alloy material for contact terminal of AC contactor and preparation method thereof |
| CN104032181A (en) * | 2014-05-12 | 2014-09-10 | 蚌埠市宏威滤清器有限公司 | High-strength high-conductivity free-cutting copper alloy material and preparation method thereof |
| CN104032164A (en) * | 2014-05-12 | 2014-09-10 | 蚌埠市宏威滤清器有限公司 | Leadless free-cutting silicon brass alloy material and preparation method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103757475B (en) | A kind of production method of high-strength simple-cutting tin-brass alloy material | |
| CN103757479B (en) | A kind of Lead-free environment-friendlycopper-nickel-zinc copper-nickel-zinc alloy material and preparation method thereof | |
| CN103757481A (en) | Free-cutting bismuth-nickel copper alloy material and preparation method thereof | |
| CN104032173A (en) | High-strength tin-brass alloy material and preparation method thereof | |
| CN104032169B (en) | A kind of containing cerium lead-free easy-to-cut zinc-white copper alloy material and preparation method thereof | |
| CN104032162A (en) | Nickel-aluminum bronze alloy material and preparation method thereof | |
| CN103757465B (en) | A kind of corrosion-resistant easy cutting Cu alloy material and preparation method thereof | |
| CN103773993B (en) | A kind of zinc electroplating bath cupronickel alloy material and preparation method thereof | |
| CN104032172A (en) | Leadless free-cutting corrosion-resistant brass alloy material and preparation method thereof | |
| CN104032183B (en) | A kind of free machining environmental protection cupronickel alloy material and preparation method thereof | |
| CN103757480B (en) | Complicated cupronickel alloy material of a kind of seawater corrosion resistance and preparation method thereof | |
| CN103757476A (en) | Magnesium-bismuth brass alloy material and preparation method thereof | |
| CN104032164A (en) | Leadless free-cutting silicon brass alloy material and preparation method thereof | |
| CN103757472B (en) | A kind of containing cerium cutting brass alloy material and preparation method thereof | |
| CN104032174A (en) | Leadless free-cutting zinc-copper-nickel alloy material and preparation method thereof | |
| CN103757473B (en) | A kind of environment-protective free-cutting nickel silver alloy material and preparation method thereof | |
| CN104032178A (en) | High-temperature-resistant copper alloy material and preparation method thereof | |
| CN104032170A (en) | Free-cutting brass alloy material and preparation method thereof | |
| CN103757474A (en) | High-manganese free-cutting brass alloy material and preparation method thereof | |
| CN104032175B (en) | A kind of containing lanthanum brass alloy material and preparation method thereof | |
| CN104032163B (en) | Cutting brass alloy material and preparation method thereof | |
| CN104032181A (en) | High-strength high-conductivity free-cutting copper alloy material and preparation method thereof | |
| CN103882258A (en) | Zinc alloy material for valve seats and preparation method thereof | |
| CN104032179A (en) | Leadless environment-friendly copper alloy material and preparation method thereof | |
| CN104032182A (en) | High-electric-conductivity free-cutting cupronickel alloy material and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20140430 |
|
| RJ01 | Rejection of invention patent application after publication |