EP1622734A2 - Procede de moulage par centrifugation - Google Patents
Procede de moulage par centrifugationInfo
- Publication number
- EP1622734A2 EP1622734A2 EP04728325A EP04728325A EP1622734A2 EP 1622734 A2 EP1622734 A2 EP 1622734A2 EP 04728325 A EP04728325 A EP 04728325A EP 04728325 A EP04728325 A EP 04728325A EP 1622734 A2 EP1622734 A2 EP 1622734A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- alloy
- cast iron
- casting
- alloys
- region
- 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.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims abstract description 16
- 238000009750 centrifugal casting Methods 0.000 title claims abstract description 12
- 229910045601 alloy Inorganic materials 0.000 claims abstract description 85
- 239000000956 alloy Substances 0.000 claims abstract description 85
- 229910001018 Cast iron Inorganic materials 0.000 claims abstract description 31
- 239000000463 material Substances 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000000155 melt Substances 0.000 claims abstract 2
- 238000005266 casting Methods 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 238000007711 solidification Methods 0.000 claims description 5
- 230000008023 solidification Effects 0.000 claims description 5
- 238000005553 drilling Methods 0.000 claims description 4
- 229910002804 graphite Inorganic materials 0.000 claims description 4
- 239000010439 graphite Substances 0.000 claims description 4
- 238000002844 melting Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 3
- 230000007704 transition Effects 0.000 claims description 3
- 239000002131 composite material Substances 0.000 claims description 2
- 229910000640 Fe alloy Inorganic materials 0.000 claims 1
- 230000008018 melting Effects 0.000 claims 1
- 239000000126 substance Substances 0.000 claims 1
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000007792 addition Methods 0.000 description 4
- 238000003754 machining Methods 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 2
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- 229910001339 C alloy Inorganic materials 0.000 description 1
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000005275 alloying Methods 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000003575 carbonaceous material Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D19/00—Casting in, on, or around objects which form part of the product
- B22D19/0009—Cylinders, pistons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D13/00—Centrifugal casting; Casting by using centrifugal force
- B22D13/02—Centrifugal casting; Casting by using centrifugal force of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis
- B22D13/023—Centrifugal casting; Casting by using centrifugal force of elongated solid or hollow bodies, e.g. pipes, in moulds rotating around their longitudinal axis the longitudinal axis being horizontal
Definitions
- the invention relates to a method for centrifugal casting, in particular of rotationally symmetrical castings such as cylinder liners made of at least two different cast iron alloys, in particular a method for producing cylinder liners with increased wear resistance of the alloy in the wear region to avoid local wear.
- Cylinder liners are usually used in large engines, where they are - especially in poor lubricity or fuel consistency, as may often occur in marine and stationary engines - are exposed to heavy abrasion. Particularly in the region of the upper reversal point of the first piston ring, the inner surface of the liner is subjected to considerable stress, so that first there are signs of wear.
- the invention has set itself the task of finding a cheaper way to locally increase the wear resistance.
- the desired range can be varied from approx. 5% of the length of the bush to over 40%. Usually, however, a length of less than 10%, which is more resistant to wear, is sufficient.
- a length of less than 10% which is more resistant to wear, is sufficient.
- only in the upper, heavily loaded area in the vicinity of the upper reversal point of the uppermost piston ring material in a mold already in the cooling (partial) casting is added, which is during the rotation of the preferably mounted with a horizontal axis mold, since it subsequently was supplied, in particular in this supply area, but - due to the centrifugal force - also over the entire inner extent expiring, axially distributed.
- the effect is made use of by selectively introducing the material of the second alloy composition, preferably radially outwards. If a thicker inner layer is to be produced, it will be possible to increase the temperature and / or the amount of material of the second casting or to be able to finish the cooling of the material of the first casting even at relatively high temperatures.
- the second alloy When the first alloy is displaced and "flowed" on the surface of the first alloy (to the inside of the bush), the second alloy will mix with the underlying first alloy and may be used in areas where it does not have the desired thickness Whereabouts can be achieved, removed as a mixed alloy during machining (boring) It is possible to introduce not just two, but three or more alloys in succession, if even more complex castings are to be achieved.
- the wear-resistant alloy penetrates very accurately, d. H. with steep transition angles with respect to the longitudinal extent or the inner surface of the casting in the already previously solidified material of the first alloy composition, so that is avoided that thin layers during running of the engine - the movement of the piston rings over the material boundary - are exposed to high mechanical loads ,
- the alloy of the inner region ie the tread to be created later
- the outer side consists of cast iron of a different composition
- cast iron in the sense of the claims may be any iron-carbon alloy , including a steel.
- the second alloy is added after the first outer alloy has begun to solidify, such that the heat of the (liquid) second alloying addition causes a portion of the first alloy to be melted and the material there is melted by trailing liquid cast iron due to the high Rotational speed is displaced during centrifugal casting. High centrifugal force and temperature ensure that the second alloy addition material is intimately fused with that of the first alloy composition without inclusions.
- An example of a second alloy which tends to hard phase and thus to increase the wear resistance is an alloy which is characterized by additions of molybdenum and / or phosphorus and / or boron and / or an increased proportion of vanadium and / or chromium.
- the cylinder liners produced in this way are brought to a dimension as usual on inside and outside dimension after drilling, annealed and finally processed in a honing process.
- the increased wear resistance is advantageous because the surface structure generated by honing is retained longer.
- FIG. 2 shows the introduction of the second alloy into the mold
- Fig. 3 shows the finished cylinder liner, which is provided after removal of the protruding portions for use in a motor
- FIG. 4 shows a representation of a 200-fold enlarged hard phase section.
- the inventive method for centrifugal casting in particular of rotationally symmetrical castings such as cylinder liners of at least two different Cast iron alloys in composite casting, is performed with a first introduction of a first cast iron alloy in the liquid state in a rotating mold for generating at least the outer shell of the casting, and then possibly several times allowed to cool the previously produced casting substantially as conven- tional loan.
- a second or even another cast iron alloy is introduced in a liquid state to a defined portion of the inner surface while maintaining the rotation of the mold, wherein the second or further cast iron alloy in a Boundary merges with the cooled material from the first or previously introduced cast iron alloy and forms a cast iron with other material properties during solidification.
- an inner region of the casting with the further cast iron alloy is re-melted within a defined range in partial thickness of the first or preceding cast iron alloy with the other Cast iron alloy acted upon.
- the area of the upper reversal point of the uppermost piston ring in the cylinder liner is subjected to a second cast iron alloy with re-melting of a region of the already cooler first cast iron alloy with second cast iron alloy until the first cast iron alloy has been displaced in the region in a desired layer thickness
- portions of the casting in which mixed material (22) of both alloys, deposited from the reflowed region at the top dead center of the displaced first alloy and the second alloy, are deposited in interior regions within the first alloy shell remote from the introduction location of the second alloy, can be removed when drilling out the cylinder liner.
- the centrifugal casting apparatus shown in Figures 1 and 2 is characterized by a liquid second material pouring device which directs the flow of molten second alloy substantially radially outward onto the first alloy shell.
- a cylinder liner produced in this way (FIG. 3 and in detail: FIG. 4) preferably has a profile of the transition between the two alloys, at the edge of or the region (s) (- e), in which (in which) the second Alloy displaced the first alloy, which runs after drilling an inner area with a blunt angle to the cylinder liner inside, in particular connects to the inside.
- the exterior material used is cast iron with lamellar graphite (GJL) or nodular graphite (GJS) and as the material of the interior cast iron with lamellar graphite with a high proportion of hard phase.
- GJL lamellar graphite
- GJS nodular graphite
- Table 1 shows exemplary limits of ingredients.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Cylinder Crankcases Of Internal Combustion Engines (AREA)
- Pistons, Piston Rings, And Cylinders (AREA)
- Treatment Of Steel In Its Molten State (AREA)
- Glass Compositions (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL04728325T PL1622734T3 (pl) | 2003-05-12 | 2004-04-20 | Sposób odlewania odśrodkowego |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10321391A DE10321391B3 (de) | 2003-05-12 | 2003-05-12 | Verfahren zum Schleuderguss |
PCT/DE2004/000837 WO2004101197A2 (fr) | 2003-05-12 | 2004-04-20 | Procede de moulage par centrifugation |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1622734A2 true EP1622734A2 (fr) | 2006-02-08 |
EP1622734B1 EP1622734B1 (fr) | 2009-11-25 |
Family
ID=32981328
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP04728325A Expired - Lifetime EP1622734B1 (fr) | 2003-05-12 | 2004-04-20 | Procede de moulage par centrifugation |
Country Status (6)
Country | Link |
---|---|
EP (1) | EP1622734B1 (fr) |
JP (1) | JP2006528073A (fr) |
AT (1) | ATE449655T1 (fr) |
DE (2) | DE10321391B3 (fr) |
PL (1) | PL1622734T3 (fr) |
WO (1) | WO2004101197A2 (fr) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CZ302712B6 (cs) * | 2010-02-04 | 2011-09-14 | Afe Cronite Cz S.R.O. | Technologie výroby bimetalických a vícevrstvých odlitku odlévaných gravitacním nebo odstredivým litím |
CN103286292B (zh) * | 2012-02-24 | 2015-02-25 | 常州市姚氏铸造材料有限公司 | 汽缸套毛坯离心铸造成型模具 |
DE202017001793U1 (de) * | 2016-10-09 | 2018-01-10 | Zynp Corporation | Herstellungseinrichtung für Grat-Zylinderlaufbuchse und Grat-Zylinderlaufbuchse |
CN106180626B (zh) * | 2016-10-09 | 2019-08-23 | 中原内配集团股份有限公司 | 毛刺气缸套生产设备及毛刺气缸套 |
CN109513902A (zh) * | 2018-11-28 | 2019-03-26 | 湖南四昉新材料有限公司 | 一种双金属轧辊套的加工方法、加工装置以及双金属轧辊套 |
CN110744026B (zh) * | 2019-12-10 | 2021-04-23 | 安徽省岳西缸套有限公司 | 缸套离心铸造机 |
CN112846126B (zh) * | 2020-12-31 | 2022-05-17 | 北京科技大学 | 多组元径向功能梯度材料设备的熔体流速调节系统及方法 |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5736058A (ja) * | 1980-08-12 | 1982-02-26 | Kubota Ltd | Fukugoenbanjorooranoseizoho |
JPS6035191B2 (ja) * | 1980-11-10 | 1985-08-13 | 株式会社ト−モク | 連続供給シ−トの流体塗布装置 |
JPS586768A (ja) * | 1981-07-01 | 1983-01-14 | Kubota Ltd | 複合耐摩耗鋳物及びその製造法 |
JPS5919792A (ja) * | 1982-07-26 | 1984-02-01 | 日揮株式会社 | 炭素析出防止性遠心力鋳造二層管 |
JPH0235021B2 (ja) * | 1982-07-31 | 1990-08-08 | Kubota Ltd | Fukugoshirindaarainaa |
CH661476A5 (de) * | 1982-07-31 | 1987-07-31 | Kubota Ltd | Verbundzylinderlaufbuechse fuer verbrennungsmotoren. |
JPS6087964A (ja) * | 1983-10-20 | 1985-05-17 | Nippon Kokan Kk <Nkk> | 複合金属管の製造方法 |
DD224782B1 (de) * | 1984-05-16 | 1988-07-06 | Thaelmann Schwermaschbau Veb | Verfahren zur herstellung von verbundgusskoerpern |
JPS6123560A (ja) * | 1984-07-13 | 1986-02-01 | Kubota Ltd | 複合アダマイトロ−ルの外殻の製造方法 |
JPS6233053A (ja) * | 1985-08-05 | 1987-02-13 | Sumitomo Light Metal Ind Ltd | 多重管の製造方法 |
JP2857568B2 (ja) * | 1993-05-21 | 1999-02-17 | 株式会社クボタ | 複合シリンダライナー |
FR2765819B1 (fr) * | 1997-07-09 | 1999-08-27 | Jean Claude Werquin | Procede de coulee centrifuge verticale a hydrodynamique amelioree et cylindres de laminage composites, a structure equiaxes, en comportant application |
JPH11236852A (ja) * | 1998-02-20 | 1999-08-31 | Kubota Corp | 大型ディーゼルエンジンライナー |
-
2003
- 2003-05-12 DE DE10321391A patent/DE10321391B3/de not_active Expired - Lifetime
-
2004
- 2004-04-20 WO PCT/DE2004/000837 patent/WO2004101197A2/fr active Application Filing
- 2004-04-20 AT AT04728325T patent/ATE449655T1/de not_active IP Right Cessation
- 2004-04-20 JP JP2006529583A patent/JP2006528073A/ja active Pending
- 2004-04-20 DE DE502004010418T patent/DE502004010418D1/de not_active Expired - Lifetime
- 2004-04-20 PL PL04728325T patent/PL1622734T3/pl unknown
- 2004-04-20 EP EP04728325A patent/EP1622734B1/fr not_active Expired - Lifetime
Non-Patent Citations (1)
Title |
---|
See references of WO2004101197A2 * |
Also Published As
Publication number | Publication date |
---|---|
DE10321391B3 (de) | 2004-10-14 |
WO2004101197A3 (fr) | 2005-01-06 |
PL1622734T3 (pl) | 2010-09-30 |
WO2004101197A2 (fr) | 2004-11-25 |
DE502004010418D1 (de) | 2010-01-07 |
EP1622734B1 (fr) | 2009-11-25 |
ATE449655T1 (de) | 2009-12-15 |
JP2006528073A (ja) | 2006-12-14 |
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