CN100535149C - Tool for coldforming operations with improved performance - Google Patents
Tool for coldforming operations with improved performance Download PDFInfo
- Publication number
- CN100535149C CN100535149C CNB2006100918273A CN200610091827A CN100535149C CN 100535149 C CN100535149 C CN 100535149C CN B2006100918273 A CNB2006100918273 A CN B2006100918273A CN 200610091827 A CN200610091827 A CN 200610091827A CN 100535149 C CN100535149 C CN 100535149C
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- China
- Prior art keywords
- weight
- instrument
- wimet
- hardness
- attenuate
- 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.)
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 9
- 239000010959 steel Substances 0.000 claims abstract description 9
- 239000003966 growth inhibitor Substances 0.000 claims abstract description 8
- 239000002245 particle Substances 0.000 claims description 19
- 235000013361 beverage Nutrition 0.000 claims description 8
- 239000004411 aluminium Substances 0.000 claims description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 6
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- 229910017052 cobalt Inorganic materials 0.000 abstract 1
- 239000010941 cobalt Substances 0.000 abstract 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 11
- 229910052751 metal Inorganic materials 0.000 description 10
- 239000002184 metal Substances 0.000 description 10
- 238000004080 punching Methods 0.000 description 7
- 239000011230 binding agent Substances 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 238000007493 shaping process Methods 0.000 description 6
- 230000006872 improvement Effects 0.000 description 5
- 238000005299 abrasion Methods 0.000 description 3
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 2
- 230000003628 erosive effect Effects 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 2
- 229910017083 AlN Inorganic materials 0.000 description 1
- 229910052581 Si3N4 Inorganic materials 0.000 description 1
- 239000000443 aerosol Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 235000013877 carbamide Nutrition 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000002045 lasting effect Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000003913 materials processing Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- HQVNEWCFYHHQES-UHFFFAOYSA-N silicon nitride Chemical compound N12[Si]34N5[Si]62N3[Si]51N64 HQVNEWCFYHHQES-UHFFFAOYSA-N 0.000 description 1
- UONOETXJSWQNOL-UHFFFAOYSA-N tungsten carbide Chemical compound [W+]#[C-] UONOETXJSWQNOL-UHFFFAOYSA-N 0.000 description 1
- 238000005491 wire drawing Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C25/00—Profiling tools for metal extruding
- B21C25/02—Dies
- B21C25/025—Selection of materials therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C3/00—Profiling tools for metal drawing; Combinations of dies and mandrels
- B21C3/02—Dies; Selection of material therefor; Cleaning thereof
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C29/00—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides
- C22C29/02—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides
- C22C29/06—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds
- C22C29/08—Alloys based on carbides, oxides, nitrides, borides, or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides, sulfides based on carbides or carbonitrides based on carbides, but not containing other metal compounds based on tungsten carbide
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Ropes Or Cables (AREA)
- Powder Metallurgy (AREA)
- Metal Extraction Processes (AREA)
- Tires In General (AREA)
Abstract
The present invention relates to cemented carbide for steel tire cord drawing operations. The cemented carbide comprises WC with an ultra fine grain size and >5 but <10 weight-% Co, including grain growth inhibitors (V and/or Cr) and with a specific relation between HV30 and cobalt content.
Description
The present invention relates to the carbamide tool of the improvement that a kind of manufacturing is used to be shaped or the method for other work material.The particular tool that the present invention is specially adapted to make the metal machining tool and uses in making tubular casing and the analogous products as the two-piece type beverages can.
Two piece can makes by punching press and attenuate drawing method.Usually, two piece can make by stamping out circular metal plate from salver.Metal " cup " is to be made by plectane.The cup that forms is promoted to pass the body forming mould by the body forming stamping machine, and this mould contains multiple ring, is known that punching press, punching press and attenuate draw ring more usually.Gap between can body shaping and punching machine and the multiple ring becomes more and more littler, makes the thickness of wall of cup be reduced and cup has been elongated.This method is commonly referred to as attenuate and draws operation.This is that the extra high operation of requirement and the high wear that causes instrument and this operation are very sensitive to the variation and the lubricating condition of size.Because all can make a large amount of beverages cans every year, so the slight improvements in each manufacture method all can cause huge saving.
Be used for material is formed the instrument of desired shape, form or finished product,, extremely hard, high compressive strength and inflexible feature must be arranged as mould, stamping machine etc.This is especially essential when form metal or analogous material.Commercial wearing and tearing, the corrosion and cracked that is used for the also necessary anti-repetition of mass-produced materials processing instrument and lasting pressure and wearing and tearing.These instruments also must be made by following material: these materials can be designed and be processed into and keep precision and dimensional stability under the operational condition of wide range.
Knownly make stamping machine, mould, deep draw instrument and analogous material machining tool, comprise metal, Wimet and conventional pottery from multiple material.These known materials all have some undesirable restriction.When manufacturing is used for the form metal product, during particularly as the tubular casing of two-piece type beverages can, the problem of material becomes especially outstanding in the prior art.
According to prior art, a kind of jar possible method of the better performance of making that obtains is to use stupalith, as at United States Patent (USP) 5,095,730 and 5, as if respectively disclosed line body is strengthened aluminium or silicon nitride in 396,788, but conventional so far Wimet is still in occupation of its status as preferred material.
The present invention relates to a kind of newly-developed of ultra-fine grain Wimet.
The particle size of Wimet is developed more and more meticulouslyr since a lot of years.The hard alloy particle size is developed into the many positive improvement that ultra-fine size range has caused the wearing and tearing processing.
Wearing and tearing (or particle loss amount) can be according to reduce (not having other wearing and tearing processing) less times greater than half the order of magnitude of sintered particles size, because grain amount is relevant with the cubes diameter.
Bonding fracture is another kind of dangerous wearing and tearing, and wherein the separation energy at the interface of the tool processes material of strong weld causes the stretch-draw division of basic carbide inside.Ultra-fine hard metal since their higher breaking tenacitys can be thicker hard metal resist the generation of this fracture better.
The erosion/corrosion of tackiness agent phase is the part of wear mechanism in the wire drawing.Even the content of tackiness agent has increased in ultra-fine cemented carbide, but less WC particle size has caused thin binder film, is commonly referred to as the tackiness agent free stroke.Therefore the soft tackiness agent particulate selective corrosion degradation of resistance to wearing mutually.Have reason to think that thin tackiness agent has also caused better oxidation/corrosive nature, because be different from pure metal in the performance of the tackiness agent at WC interface.
From above can draw will be meticulousr the hard metal of time micron main benefit that develops into nanometer range be to improve hardness, maximization abrasion resistance and intensity are kept all other useful characteristics simultaneously most possibly.
Therefore the erosion resistance of the improvement of Wimet can obtain in the following way: be decreased to tungsten carbide particles sized ultra-fine and keep binder content to make hardness increase.
Therefore, one object of the present invention be to provide a kind of than the better ultra-fine grain Wimet of the performance of prior art instrument and be used for cold shaping and punching operation by using, especially for the instrument of making two-piece type aluminium or steel beverages can.Draw in the operation at attenuate and to be improved especially.Cause the associative list of the particle size of required better performance and Co binder content to be shown the ultrafine WC that 6 weight %Co and hardness are about 2050HV, promptly the general hardness of the normally used 6 weight %Co tackiness agents of hardness ratio is the with a higher standard of 1775HV.
The embodiment of instrument of the present invention and Wimet is shown respectively in accompanying drawing 1 and accompanying drawing 2.Accompanying drawing 1 has shown an attenuate drawing die, and wherein A is that sintered-carbide die and B are steel bushings.Accompanying drawing 2 has shown the microstructure of the etched Wimet of the present invention of Murakami under 10000 magnifications.This structure contains WC and Co tackiness agent.
Therefore the present invention relates to a kind of Wimet of abrasion resistance that ultrafine WC particle size and high rigidity is arranged and have an improvement in cold shaping and punching operation, the attenuate of particularly aluminium and the manufacturing of steel beverages can draws the application in the processing.Yet the present invention also can be widely used in making the product, particularly tubular casing of various other shapings, as drying battery cover and aerosol canister.
In order to solve the well-known difficulty of determining and measuring characterizing definition " ultra-fine cemented carbide " under the particle size of wolfram varbide in the Wimet and this situation, the relation of hardness/binder content is used to characterizing definition Wimet of the present invention.The hardness of well-known Wimet depends on the particle size of binder content and wolfram varbide.Hardness increases when particle size or binder content reduction.
Therefore the present invention relates to a kind of cold shaping instrument of Wimet, this Wimet has 5-10 weight %, preferred 5.5-8 weight % and the Co content between the 5.5-7 weight % most preferably, have＜particle growth inhibitor V and/or the Cr of 1 weight %, and HV30 hardness and Co weight % content have following relation:
HV30＞2150-52 * weight %Co, HV30＞2200-52 * weight %Co preferably, HV30＞2250-52 * weight %Co more preferably, and hardness HV30＞1900 most preferably.
This Wimet has the Co tackiness agent of 5-8 weight % in one embodiment, the particle growth inhibitor V of＜1 weight % and/or Cr and hardness＞1850, and be used as the attenuate drawing die of making in aluminium or the steel beverages can.
This Wimet has the Co tackiness agent of 5-8 weight % in another embodiment, the particle growth inhibitor V of＜1 weight % and/or Cr and HV hardness＞1950.
This Wimet has the Co tackiness agent of 6-7 weight % in another embodiment, and the particle growth inhibitor V of＜1 weight % and/or Cr and HV hardness are 1950-2200.
This Wimet by as mill, the conventional powder metallurgy technology of extruding and agglomerating makes.
The present invention also relates to Wimet of the present invention is used for other cold shaping and punching operation especially, as the stretched operation of silk and particularly tyre cord.
Embodiment 1
The attenuate drawing die that is used for the production of 50cl cylinder of steel is furnished with carbide ring A and B:
A.WC-6 weight %Co, inferior micron particle size, Cr
3C
2As particle growth inhibitor and HV30 hardness is 1775, prior art.
B. by WC, 6 weight %Co and as particle growth inhibitor＜the carbonization V of 1 weight % and the ultra-fine cemented carbide that Cr forms, HV30 hardness is 2050, the present invention.
These instruments are used as in the production of 50cl cylinder of steel the 3rd ring test and obtain following result.Performance factor coexist 100000 jars be produced after on ring diameter the observed degree of wear relevant.Ring of the present invention on average has only the abrasion loss of prior art 74%.
Table 1 has been summed up sample A﹠amp; The average result of 24 tested rings of B.
Table 1
| Sample | Performance factor (wearing and tearing) |
| A. prior art | 100 |
| B. the present invention | 74 |
Claims (7)
1. deep draw and attenuate drawing work is characterized in that containing ultra-fine cemented carbide, this Wimet contain WC,＜1 weight % particle growth inhibitor V and/or Cr and 5-10 weight %Co, and vickers hardness hv 30＞2150-52 * weight %Co.
2. the instrument of claim 1 is characterized in that vickers hardness hv 30＞2200-52 * weight %Co.
3. the instrument of claim 1 is characterized in that vickers hardness hv 30＞2250-52 * weight %Co.
4. the instrument of claim 1 is characterized in that vickers hardness hv 30＞1900.
5. according to each instrument of claim 1-4, it is characterized in that comprising 5.5-8 weight %Co.
6. each instrument of claim 1-4 is being used for making the deep draw of aluminium or steel beverages can and the application that attenuate draws operation.
7. each instrument of claim 1-4 draws the application of operation at the attenuate that is used for making aluminium or steel beverages can.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| SE0501201A SE530128C2 (en) | 2005-05-27 | 2005-05-27 | Ultra fine cemented carbide for use in deep drawing and ironing operation, e.g. in ironing operation of aluminum or steel beverage can manufacturing, comprises tungsten carbide, vanadium and/or chromium and specified amount of cobalt |
| SE05012018 | 2005-05-27 | ||
| SE05022900 | 2005-10-17 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1869268A CN1869268A (en) | 2006-11-29 |
| CN100535149C true CN100535149C (en) | 2009-09-02 |
Family
ID=37443044
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100918273A Active CN100535149C (en) | 2005-05-27 | 2006-05-29 | Tool for coldforming operations with improved performance |
| CN200610091826.9A Active CN1869267B (en) | 2005-05-27 | 2006-05-29 | Tool for coldforming operations with improved performance |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200610091826.9A Active CN1869267B (en) | 2005-05-27 | 2006-05-29 | Tool for coldforming operations with improved performance |
Country Status (2)
| Country | Link |
|---|---|
| CN (2) | CN100535149C (en) |
| SE (1) | SE530128C2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102965546A (en) * | 2012-11-20 | 2013-03-13 | 无锡康柏斯机械科技有限公司 | Cord thread machine |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1034875C (en) * | 1991-05-16 | 1997-05-14 | 天津大学 | Producing method for tungsten carbide based hard alloy |
| SE9703204L (en) * | 1997-09-05 | 1999-03-06 | Sandvik Ab | Tools for drilling / milling circuit board material |
| CN1082552C (en) * | 1998-07-09 | 2002-04-10 | 浙江大学 | Smelting method and equipment for nanometer hard tungsten-cobalt carbide and vanadium carbide alloy |
-
2005
- 2005-05-27 SE SE0501201A patent/SE530128C2/en not_active IP Right Cessation
-
2006
- 2006-05-29 CN CNB2006100918273A patent/CN100535149C/en active Active
- 2006-05-29 CN CN200610091826.9A patent/CN1869267B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| SE0501201L (en) | 2006-11-28 |
| CN1869267B (en) | 2014-05-07 |
| CN1869267A (en) | 2006-11-29 |
| CN1869268A (en) | 2006-11-29 |
| SE530128C2 (en) | 2008-03-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181023 Address after: Stockholm Patentee after: Sandvik Hai Bo Limited by Share Ltd Address before: Sandviken Patentee before: Sandvik Sandvik Intellectual Property Co., Ltd. |
|
| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Stockholm, SWE Patentee after: Hebborn materials and Technology Co.,Ltd. Address before: Stockholm, SWE Patentee before: Sandvik Hyperion Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |